:root {
    /* RainLoop-inspired palette: clean blue accent, light sidebar, white panels */
    --accent: #4a90d9;
    --accent-dark: #2f73b8;
    --accent-soft: #e8f2fb;
    --bg: #f0f2f5;
    --panel: #ffffff;
    --sidebar-bg: #f5f7fa;
    --border: #dde1e9;
    --text: #2d3340;
    --muted: #7a8199;
    --danger: #d94040;
    --ok: #0c9d61;
    --radius: 5px;
    --radius-lg: 10px;
    /* Layered elevation for a softer, more physical depth than a single flat shadow. */
    --shadow: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.08);
    --shadow-md: 0 2px 6px rgba(16,24,40,.06), 0 6px 16px rgba(16,24,40,.10);
    --shadow-lg: 0 4px 12px rgba(16,24,40,.08), 0 16px 40px rgba(16,24,40,.14);
    --row-hover: #f7f9fc;
    --row-selected: #edf4fc;
    /* Accent-derived tokens so focus rings, selection and scrollbars stay on-brand. */
    --accent-rgb: 74,144,217;
    --ring: 0 0 0 3px rgba(var(--accent-rgb), .30);
    --ease: cubic-bezier(.4, 0, .2, 1);
    --scrollbar-thumb: rgba(60,72,100,.28);
    --scrollbar-thumb-hover: rgba(60,72,100,.45);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}
input, textarea, select, button { font-family: inherit; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }
h1, h2, h3 { letter-spacing: -.01em; }

/* ======================================================================= */
/* ====  UI polish: focus, selection, scrollbars, motion             ===== */
/* ======================================================================= */

/* Tinted text selection keeps the brand colour present even when highlighting. */
::selection { background: rgba(var(--accent-rgb), .22); }

/* Accessible keyboard focus: a crisp accent ring, but ONLY for keyboard users.
   Mouse clicks never show it (":focus:not(:focus-visible)"), so the UI stays quiet
   for pointer use while remaining fully navigable by keyboard. */
:focus:not(:focus-visible) { outline: none; }
a:focus-visible, button:focus-visible, .btn:focus-visible, .linkbtn:focus-visible,
.topbar nav a:focus-visible, .folders li a:focus-visible, .settings-nav-item:focus-visible,
.tb-btn:focus-visible, .sig-tb-btn:focus-visible, .compose-win-btn:focus-visible,
.auth-pw-btn:focus-visible, .auth-captcha-refresh:focus-visible, .theme-toggle:focus-visible,
[tabindex]:focus-visible, summary:focus-visible, label.checkbox:focus-within {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 5px;
}

/* Consistent, subtle scrollbars across every scroll region (was: an invisible
   white thumb on the light sidebar). Overlay-style, thin, brand-neutral. */
.folders, .msglist, .msglist-compact, .messages, .message-view, .three-pane .preview,
.settings-content, .settings-nav, .quote-block, .lt-list, .addr-suggestions, .html-body {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) transparent;
}
.folders::-webkit-scrollbar, .msglist::-webkit-scrollbar, .msglist-compact::-webkit-scrollbar,
.messages::-webkit-scrollbar, .message-view::-webkit-scrollbar, .three-pane .preview::-webkit-scrollbar,
.settings-content::-webkit-scrollbar, .settings-nav::-webkit-scrollbar, .quote-block::-webkit-scrollbar,
.lt-list::-webkit-scrollbar, .addr-suggestions::-webkit-scrollbar { width: 10px; height: 10px; }
.folders::-webkit-scrollbar-track, .msglist::-webkit-scrollbar-track, .msglist-compact::-webkit-scrollbar-track,
.messages::-webkit-scrollbar-track, .message-view::-webkit-scrollbar-track, .three-pane .preview::-webkit-scrollbar-track,
.settings-content::-webkit-scrollbar-track, .settings-nav::-webkit-scrollbar-track, .quote-block::-webkit-scrollbar-track,
.lt-list::-webkit-scrollbar-track, .addr-suggestions::-webkit-scrollbar-track { background: transparent; }
.folders::-webkit-scrollbar-thumb, .msglist::-webkit-scrollbar-thumb, .msglist-compact::-webkit-scrollbar-thumb,
.messages::-webkit-scrollbar-thumb, .message-view::-webkit-scrollbar-thumb, .three-pane .preview::-webkit-scrollbar-thumb,
.settings-content::-webkit-scrollbar-thumb, .settings-nav::-webkit-scrollbar-thumb, .quote-block::-webkit-scrollbar-thumb,
.lt-list::-webkit-scrollbar-thumb, .addr-suggestions::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb); border-radius: 8px;
    border: 3px solid transparent; background-clip: padding-box;
}
.folders::-webkit-scrollbar-thumb:hover, .msglist::-webkit-scrollbar-thumb:hover, .msglist-compact::-webkit-scrollbar-thumb:hover,
.messages::-webkit-scrollbar-thumb:hover, .message-view::-webkit-scrollbar-thumb:hover, .three-pane .preview::-webkit-scrollbar-thumb:hover,
.settings-content::-webkit-scrollbar-thumb:hover, .settings-nav::-webkit-scrollbar-thumb:hover, .quote-block::-webkit-scrollbar-thumb:hover,
.lt-list::-webkit-scrollbar-thumb:hover, .addr-suggestions::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover); background-clip: padding-box;
}

/* Respect users who ask for less motion: neutralise transitions, animations,
   the background parallax scale and the captcha spin. */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }
    .app-bg { transform: none !important; }
}

/* ---- Buttons ----------------------------------------------------------- */
button, .btn, .primary {
    cursor: pointer; font-size: 14px; font-family: inherit;
    border-radius: 6px; border: 1px solid var(--border);
    background: var(--panel); padding: 8px 15px; color: var(--text);
    transition: background .15s var(--ease), border-color .15s var(--ease), box-shadow .15s var(--ease), transform .06s var(--ease);
}
.btn:hover, button:hover { background: #f7f8fb; text-decoration: none; }
button:active, .btn:active, .primary:active { transform: translateY(1px); }
.primary {
    background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 600;
    box-shadow: 0 1px 2px rgba(74,144,217,.25);
}
.primary:hover { background: var(--accent-dark); color: #fff; box-shadow: 0 4px 12px rgba(74,144,217,.30); }
.primary.block { width: 100%; padding: 11px; margin-top: 18px; text-align: center; display: block; }
.danger { color: var(--danger); }
.linkbtn { border: none; background: none; padding: 3px 6px; color: var(--muted); }
.linkbtn:hover { background: #f1f2f6; color: var(--text); }
.linkbtn.danger:hover { color: var(--danger); }
.inline { display: inline; } form.inline { margin: 0; }

/* ---- Topbar ------------------------------------------------------------ */
.topbar {
    display: flex; align-items: center; gap: 22px;
    background: var(--panel); border-bottom: 1px solid var(--border);
    padding: 0 22px; height: 58px;
    position: sticky; top: 0; z-index: 10; box-shadow: var(--shadow);
}
.topbar .brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 18px; color: var(--accent); letter-spacing: -.02em; text-decoration: none; }
.topbar .brand:hover { text-decoration: none; }
.brand-mark { display: block; flex-shrink: 0; }
.brand-text { line-height: 1; }
.topbar nav { display: flex; gap: 4px; }
.topbar nav a { color: var(--muted); font-weight: 600; padding: 8px 13px; border-radius: 6px; transition: background .15s var(--ease), color .15s var(--ease); }
.topbar nav a:hover { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.topbar nav a.nav-active { background: var(--accent-soft); color: var(--accent); }
.topbar .account { display: flex; align-items: center; gap: 12px; color: var(--muted); margin-left: auto; }
.topbar .account span { font-weight: 500; }

/* Global search */
.global-search { flex: 1; max-width: 420px; display: flex; align-items: center; gap: 0; position: relative; margin: 0 12px; }
.global-search input[type=search] { width: 100%; padding: 8px 36px 8px 36px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; background: var(--bg); color: var(--text); transition: border-color .15s, box-shadow .15s; }
.global-search input[type=search]:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74,144,217,.12); }
.global-search input[type=search]::placeholder { color: var(--muted); }
.gs-icon { position: absolute; left: 11px; color: var(--muted); pointer-events: none; flex-shrink: 0; }
.gs-kbd { position: absolute; right: 10px; background: var(--border); color: var(--muted); font-size: 11px; font-family: inherit; padding: 1px 5px; border-radius: 4px; pointer-events: none; line-height: 1.6; transition: opacity .15s; }
.global-search input[type=search]:focus ~ .gs-kbd { opacity: 0; }

.flash {
    background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0;
    padding: 11px 16px; margin: 14px 22px; border-radius: 8px; font-weight: 500;
    box-shadow: var(--shadow); animation: flashIn .28s var(--ease);
}
@keyframes flashIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
.error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; padding: 11px 14px; border-radius: 4px; margin: 12px 0; }
.field-error { color: var(--danger); font-size: 12px; }

/* ---- Auth / login ------------------------------------------------------ */
.auth { display: grid; grid-template-columns: 1.1fr 1fr; min-height: 100vh; }
.auth-brand {
    color: #fff; padding: 56px 56px 32px; display: flex; flex-direction: column; justify-content: space-between;
    background: linear-gradient(135deg, #1f6fc4 0%, #2b8fd6 50%, #36b6d6 100%);
    position: relative; overflow: hidden;
}
.auth-brand::after {
    content: ""; position: absolute; right: -120px; bottom: -120px;
    width: 360px; height: 360px; border-radius: 50%;
    background: rgba(255,255,255,.08);
}
.auth-brand-inner { position: relative; z-index: 1; max-width: 440px; margin-top: 8vh; }
.auth-logo {
    width: 60px; height: 60px; margin-bottom: 26px;
    display: flex; align-items: center; justify-content: center;
    filter: drop-shadow(0 6px 14px rgba(8,30,60,.35));
}
.auth-brand h1 { font-size: 44px; margin: 0 0 16px; letter-spacing: -.03em; }
.auth-tagline { font-size: 17px; line-height: 1.6; color: rgba(255,255,255,.9); margin: 0 0 28px; }
.auth-points { list-style: none; padding: 0; margin: 0; font-size: 15px; }
.auth-points li { margin: 12px 0; color: rgba(255,255,255,.92); }
.auth-foot { position: relative; z-index: 1; color: rgba(255,255,255,.7); font-size: 13px; }

.auth-form-wrap { display: flex; align-items: center; justify-content: center; padding: 40px; background: var(--panel); }
.auth-form {
    width: 100%; max-width: 380px;
    --auth-accent: #6366f1; --auth-fill: #eef1fb;
}
.auth-form h2 { font-size: 26px; margin: 0 0 6px; }
.auth-form label { display: block; margin-top: 18px; margin-bottom: 6px; font-weight: 600; font-size: 13px; }
.auth-form .checkbox { display: flex; align-items: center; gap: 8px; margin-top: 16px; font-weight: 500; font-size: 13px; }

/* ---- Floating-label auth fields (email / password) --------------------- */
.auth-field { position: relative; margin-top: 22px; }
.auth-form .auth-field-label {
    position: absolute; top: -9px; left: 14px; z-index: 1;
    display: inline-block; margin: 0; padding: 0 6px;
    background: var(--panel); font-size: 12px; font-weight: 600;
    color: var(--auth-accent); line-height: 1;
}
.auth-field-label .req { color: var(--auth-accent); }
.auth-field-input {
    width: 100%; padding: 15px 16px; border: none; border-radius: 10px;
    background: var(--auth-fill); font-size: 14px; color: var(--text);
    transition: box-shadow .15s;
}
.auth-field-input:focus { outline: none; box-shadow: 0 0 0 2px var(--auth-accent); }

/* Password field: lavender input + separated icon button on the right */
.auth-pw-wrap {
    display: flex; align-items: stretch; border-radius: 10px; overflow: hidden;
    background: var(--auth-fill); transition: box-shadow .15s;
}
.auth-pw-wrap:focus-within { box-shadow: 0 0 0 2px var(--auth-accent); }
.auth-pw-input { flex: 1; border-radius: 0; background: transparent; }
.auth-pw-input:focus { box-shadow: none; }
.auth-pw-btn {
    flex-shrink: 0; width: 52px; border: none; border-left: 1px solid rgba(0,0,0,.06);
    background: var(--panel); color: var(--muted); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background .12s, color .12s;
}
.auth-pw-btn:hover { color: var(--auth-accent); }
.pw-icon { display: block; }
.pw-icon[hidden] { display: none; }

/* ---- Captcha row: plain outlined field + circular refresh button ------- */
.auth-captcha-row { display: flex; align-items: center; gap: 10px; margin-top: 22px; }
.auth-captcha-input {
    flex: 1; padding: 14px 16px; border: 1px solid var(--border); border-radius: 10px;
    background: var(--panel); font-size: 14px; color: var(--text);
}
.auth-captcha-input::placeholder { color: var(--muted); }
.auth-captcha-input:focus { outline: none; border-color: var(--auth-accent); box-shadow: 0 0 0 2px rgba(99,102,241,.15); }
.auth-captcha-refresh {
    flex-shrink: 0; width: 42px; height: 42px; border-radius: 50%;
    border: 1px solid var(--border); background: var(--panel); color: var(--muted);
    display: flex; align-items: center; justify-content: center; cursor: pointer;
    transition: background .12s, color .12s;
}
.auth-captcha-refresh:hover { background: var(--auth-fill); color: var(--auth-accent); }
.auth-captcha-refresh svg { transition: transform .2s; }
.auth-captcha-refresh:active svg { transform: rotate(180deg); }
.auth-captcha-refresh:disabled { opacity: .6; cursor: default; }

/* legacy login card (used by error pages) */
.login-wrap { display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.login-card { background: var(--panel); padding: 34px; border-radius: 6px; box-shadow: var(--shadow-lg); width: 360px; display: flex; flex-direction: column; }
.login-card h1 { margin: 0 0 6px; color: var(--accent); }

/* ---- Mail layout ------------------------------------------------------- */
.mail-layout { display: flex; height: calc(100vh - 58px); }
.folders { width: 232px; background: var(--panel); border-right: 1px solid var(--border); padding: 16px 14px; overflow-y: auto; flex-shrink: 0; }
.compose-btn {
    display: flex; align-items: center; justify-content: center; gap: 7px;
    background: var(--accent); color: #fff; padding: 11px; border-radius: 6px; font-weight: 700;
    margin-bottom: 18px; box-shadow: 0 1px 2px rgba(74,144,217,.3);
    transition: background .15s var(--ease), box-shadow .15s var(--ease), transform .05s var(--ease);
}
.compose-btn:hover { background: var(--accent-dark); color: #fff; text-decoration: none; box-shadow: 0 4px 12px rgba(74,144,217,.35); }
.compose-btn:active { transform: translateY(1px); }
.folders ul { list-style: none; padding: 0; margin: 0; }
.folders li a { display: flex; justify-content: space-between; align-items: center; padding: 9px 11px; border-radius: 6px; color: var(--text); font-weight: 500; margin-bottom: 2px; transition: background .13s var(--ease), color .13s var(--ease); }
.folders li a:hover { background: #f4f5f9; text-decoration: none; }
.folders li.active a { background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.badge { background: var(--accent); color: #fff; border-radius: 4px; padding: 1px 8px; font-size: 11px; font-weight: 700; }

/* ---- New folder form -------------------------------------------------- */
.new-folder-form { margin: 8px 0; }
.new-folder-form input[type=text] {
    width: 100%; box-sizing: border-box; padding: 7px 10px;
    border: 1px solid var(--border); border-radius: 4px; font-size: 13px;
    font-family: inherit; margin-bottom: 8px; background: var(--panel); color: var(--text);
}
.new-folder-form input[type=text]:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74,144,217,.12); }
.new-folder-btns { display: flex; gap: 6px; }
.new-folder-btns button {
    flex: 1; min-width: 0; padding: 6px 4px; font-size: 12.5px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.add-folder-btn {
    width: 100%; box-sizing: border-box; text-align: left; padding: 8px 11px;
    border: 1px dashed var(--border); border-radius: 4px; background: none;
    color: var(--muted); font-size: 13px; cursor: pointer; margin-top: 4px;
    transition: background .12s, color .12s, border-color .12s;
}
.add-folder-btn:hover { background: var(--row-hover); color: var(--text); border-color: var(--accent); }
:root[data-theme="dark"] .new-folder-form input[type=text] { background-color: rgba(255,255,255,.06); border-color: rgba(255,255,255,.15); color: var(--text); }
body.has-bg .add-folder-btn { color: var(--glass-muted); border-color: var(--glass-border); }
body.has-bg .add-folder-btn:hover { color: var(--glass-text); background: var(--glass-accent-soft); border-color: var(--glass-accent); }
body.has-bg .new-folder-form input[type=text] { background: var(--glass-bg-strong); border-color: var(--glass-border); color: var(--glass-text); }

.messages { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.toolbar { display: flex; align-items: center; gap: 8px; padding: 8px 16px; border-bottom: 1px solid var(--border); background: var(--panel); }
.toolbar .count { color: var(--muted); font-size: 13px; }

/* Sort form in toolbar */
.sort-form { display: inline-flex; align-items: center; gap: 4px; }
.sort-select {
    border: 1px solid var(--border); border-radius: 4px; background: var(--panel);
    color: var(--text); font-size: 12.5px; font-family: inherit; padding: 4px 6px;
    cursor: pointer; height: 30px;
}
.sort-select:focus { outline: none; border-color: var(--accent); }
.sort-dir-btn { padding: 4px 7px !important; height: 30px; display: inline-flex; align-items: center; justify-content: center; }
.msg-count { font-size: 12px; color: var(--muted); background: var(--accent-soft); padding: 2px 8px; border-radius: 10px; white-space: nowrap; }

/* Active search chip shown in toolbar when a search is active */
.active-search-chip { display: inline-flex; align-items: center; gap: 5px; background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 600; padding: 3px 8px; border-radius: 4px; white-space: nowrap; }
.active-search-chip svg { flex-shrink: 0; }
.chip-clear { display: inline-flex; align-items: center; color: var(--accent); opacity: .7; text-decoration: none; margin-left: 2px; }
.chip-clear:hover { opacity: 1; }

.msglist { width: 100%; border-collapse: collapse; background: var(--panel); flex: 1; overflow-y: auto; display: block; }
.msglist tbody { display: table; width: 100%; }
.msglist tr { border-bottom: 1px solid #f0f1f5; transition: background .12s; }
.msglist tr:hover { background: #f8f9fc; }
.msglist td { padding: 13px 16px; vertical-align: middle; }
.avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--avatar-bg, linear-gradient(135deg, #667eea, #764ba2));
    color: #fff; display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px; text-transform: uppercase;
    flex-shrink: 0; box-shadow: 0 1px 3px rgba(0,0,0,.15);
    user-select: none; letter-spacing: .01em;
}
.col-avatar { width: 34px; padding-right: 0; }
.col-from { width: 220px; color: var(--text); font-weight: 500; }
.col-subject a { color: var(--text); }
.col-date { width: 130px; color: var(--muted); text-align: right; white-space: nowrap; font-size: 13px; }
.col-actions { width: 44px; text-align: right; }
.msglist tr.unread { background: #fcfcff; }
.msglist tr.unread .col-from, .msglist tr.unread .col-subject a { font-weight: 700; }
.msglist tr.unread td.col-avatar::before { content: ""; }
.clip { margin-left: 6px; }
.empty {
    margin: 48px auto; max-width: 360px; text-align: center; color: var(--muted);
    background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 40px 28px; box-shadow: var(--shadow-md);
}
.empty .empty-ic { display: block; margin-bottom: 16px; line-height: 0; opacity: .85; }
.empty .empty-title { font-weight: 700; color: var(--text); font-size: 16px; margin-bottom: 4px; }
.pager { display: flex; gap: 8px; align-items: center; justify-content: center; padding: 14px; border-top: 1px solid var(--border); }
.pager .btn { padding: 6px 14px; font-size: 13px; }
.pager span { font-size: 13px; color: var(--muted); min-width: 60px; text-align: center; }

/* Keyboard shortcuts help dialog */
.kbd-help-dlg {
    position: fixed; inset: 0; z-index: 9000;
    background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center;
}
.kbd-help-dlg[hidden] { display: none; }
.kbd-help-inner {
    background: var(--panel); border-radius: 6px; padding: 20px 24px;
    box-shadow: var(--shadow-lg); min-width: 280px; max-width: 380px;
}
.kbd-help-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.kbd-help-close { border: none; background: none; font-size: 20px; cursor: pointer; color: var(--muted); padding: 0 4px; }
.kbd-help-grid { display: flex; flex-direction: column; gap: 7px; }
.kbd-row { display: flex; align-items: center; gap: 6px; }
.kbd-row span { margin-left: auto; font-size: 13.5px; color: var(--text); padding-left: 16px; }
.kbd-help-grid kbd, .kbd-row kbd {
    background: #f1f2f6; border: 1px solid var(--border); border-radius: 5px;
    padding: 2px 8px; font-family: inherit; font-size: 12px; color: var(--text);
    min-width: 24px; text-align: center; display: inline-block;
}

/* ---- Message view ------------------------------------------------------ */
.message-view { background: var(--panel); padding: 20px 24px 32px; min-height: calc(100vh - 58px); overflow-y: auto; }

/* Gmail-style subject row */
.gm-subject-row { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.gm-subject { flex: 1; min-width: 0; font-size: 1.35rem; font-weight: 700; margin: 0; color: var(--text); line-height: 1.3; word-break: break-word; }

/* Icon-only action toolbar (top right) */
.gm-toolbar { display: flex; align-items: center; gap: 2px; flex-shrink: 0; }
.gm-tool-btn { display: flex; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; border: none; border-radius: 50%; background: transparent; color: var(--muted); cursor: pointer; transition: background .15s, color .15s; }
.gm-tool-btn:hover { background: var(--hover); color: var(--text); }
.gm-tool-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* Move-to dropdown */
.gm-move-wrap { position: relative; }
.gm-move-dropdown { position: absolute; right: 0; top: calc(100% + 4px); z-index: 200; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 6px; min-width: 180px; }
.gm-move-dropdown .msg-move-select { width: 100%; border: none; background: transparent; font-size: 13px; color: var(--text); cursor: pointer; padding: 4px 6px; }

/* Sender card */
.gm-sender-card { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 14px 0 14px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin-bottom: 0; }
.gm-sender-left { display: flex; align-items: flex-start; gap: 12px; min-width: 0; flex: 1; }
.gm-sender-info { min-width: 0; flex: 1; }
.gm-sender-name { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; line-height: 1.4; margin-bottom: 2px; }
.gm-sender-name strong { font-size: 14px; color: var(--text); }
.gm-sender-addr { font-size: 13px; }
.gm-to-toggle { font-size: 12px; padding: 0; line-height: 1.4; }
.gm-to-toggle.open { color: var(--accent); }
.gm-to-detail { margin-top: 6px; font-size: 13px; }
.gm-to-detail .meta { color: var(--muted); margin: 2px 0; }
.gm-to-detail .meta strong { color: var(--text); }

/* Right side: date + icon buttons */
.gm-sender-right { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.gm-date { font-size: 12px; white-space: nowrap; margin-right: 4px; }
.gm-icon-btn { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; padding: 0; border-radius: 50%; border: none; background: transparent; color: var(--muted); cursor: pointer; text-decoration: none; transition: background .15s, color .15s; }
.gm-icon-btn:hover { background: var(--hover); color: var(--text); }
.gm-icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.gm-icon-btn.starred { color: #f5a623; }

/* Message body */
.msg-body { padding: 18px 0 24px; }
.attachments { background: #f8f9fc; border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; margin: 14px 0; }
.attachments .att { display: inline-block; margin-right: 16px; }
.html-body { width: 100%; min-height: 60vh; border: none; }
.text-body { white-space: pre-wrap; font-family: inherit; font-size: 14px; }

/* Bottom reply/forward bar */
.gm-bottom-actions { display: flex; gap: 10px; padding-top: 16px; border-top: 1px solid var(--border); margin-top: 8px; }
.gm-bottom-btn { display: inline-flex; align-items: center; gap: 6px; padding: 7px 18px; border: 1px solid var(--border); border-radius: 20px; font-size: 13px; font-weight: 500; color: var(--text); text-decoration: none; background: var(--panel); cursor: pointer; transition: background .15s, box-shadow .15s; }
.gm-bottom-btn:hover { background: var(--hover); box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.gm-bottom-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.gm-bottom-btn svg { flex-shrink: 0; color: var(--muted); }

/* Legacy .msg-actions kept for the Message full-page view */
.msg-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 20px; }
.msg-header { border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 18px; }
.msg-header h2 { margin: 0 0 12px; font-size: 22px; }
.msg-header .meta { color: var(--muted); margin: 3px 0; }

/* ---- Compose / contacts / settings ------------------------------------- */
.compose-view, .contacts-view, .settings-view { background: var(--bg); min-height: calc(100vh - 58px); }
.contacts-view { padding: 20px; }
.settings-view { padding: 0; }

/* ── Settings layout ── */
.settings-layout { display: flex; height: calc(100vh - 58px); overflow: hidden; }

.settings-nav { width: 200px; flex-shrink: 0; padding: 16px 10px; display: flex; flex-direction: column; gap: 2px; background: var(--panel); border-right: 1px solid var(--border); overflow-y: auto; }
.settings-nav-title { font-size: 11px; font-weight: 600; letter-spacing: .07em; color: var(--muted); text-transform: uppercase; padding: 4px 10px 10px; }
.settings-nav-item { display: flex; align-items: center; gap: 9px; padding: 8px 10px; border-radius: 4px; font-size: 13px; font-weight: 500; color: var(--muted); background: none; border: none; cursor: pointer; text-align: left; width: 100%; transition: background .12s, color .12s; }
.settings-nav-item svg { flex-shrink: 0; }
.settings-nav-item:hover { background: var(--bg); color: var(--text); }
.settings-nav-item.active { background: var(--accent-soft); color: var(--accent); }
.settings-nav-item.active svg { stroke: var(--accent); }
.settings-nav-badge { margin-left: auto; background: var(--accent); color: #fff; font-size: 10px; font-weight: 700; padding: 1px 6px; border-radius: 4px; line-height: 1.6; }

.settings-content { flex: 1; overflow-y: auto; padding: 32px 40px; }
.settings-section { display: none; max-width: 640px; }
.settings-section.active { display: block; }

.sec-header { margin-bottom: 24px; }
.sec-title { font-size: 16px; font-weight: 600; color: var(--text); margin: 0 0 4px; }
.sec-sub { font-size: 13px; color: var(--muted); margin: 0; }
.sec-divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.sec-form { display: flex; flex-direction: column; gap: 0; }

.form-field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 16px; }
.form-field label { font-size: 12px; font-weight: 600; color: var(--muted); }
.form-field input, .form-field select, .form-field textarea { padding: 8px 11px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; font-family: inherit; background: var(--panel); color: var(--text); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(43,127,214,.1); }
.form-field textarea { resize: vertical; min-height: 100px; }
.form-field input[type=range] { padding: 0; border: none; background: none; box-shadow: none; accent-color: var(--accent); }
.form-field input[type=file] { padding: 6px 8px; }
.field-hint { font-size: 11px; color: var(--muted); }

.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

/* ── Filter chips ── */
.filter-chips { display: flex; flex-direction: column; gap: 8px; margin-bottom: 4px; }
.filter-chip-row { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: var(--panel); border: 1px solid var(--border); border-radius: 6px; }
.filter-chip-desc { display: flex; align-items: center; gap: 8px; flex: 1; font-size: 13px; color: var(--text); }
.filter-chip-desc svg { flex-shrink: 0; }
.filter-chip-text { line-height: 1.5; }
.filter-chip-text strong { font-weight: 600; }
.filter-chip-del { background: none; border: none; cursor: pointer; color: var(--muted); padding: 4px; border-radius: 4px; display: flex; align-items: center; flex-shrink: 0; }
.filter-chip-del:hover { background: #fef2f2; color: var(--danger); }
.field { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 11px; }
.field label { width: 72px; color: var(--muted); font-weight: 600; font-size: 13px; padding-top: 9px; }
.field input, .field textarea { flex: 1; padding: 9px 11px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74,144,217,.12); }
.hidden-body { display: none; }
.editor { border: 1px solid var(--border); border-radius: 6px; min-height: 280px; padding: 14px; background: #fff; overflow-y: auto; }
.editor:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74,144,217,.12); }
.clean-note { margin: 6px 0 0; font-size: 13px; color: var(--ok); font-weight: 500; }

/* ── LanguageTool panel ──────────────────────────────────────────────────── */
.lt-panel { margin: 10px 0 0; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); overflow: hidden; }
.lt-panel[hidden] { display: none; }
.lt-panel-head { display: flex; align-items: center; justify-content: space-between; padding: 9px 14px; background: #f7f8fc; border-bottom: 1px solid var(--border); }
.lt-panel-title { font-size: 13px; font-weight: 600; color: var(--text); }
.lt-panel-close { background: none; border: none; cursor: pointer; font-size: 16px; color: var(--muted); padding: 0 2px; line-height: 1; }
.lt-panel-close:hover { color: var(--danger); }
.lt-list { list-style: none; margin: 0; padding: 0; max-height: 260px; overflow-y: auto; }
.lt-checking, .lt-ok, .lt-limit { padding: 12px 14px; font-size: 13px; color: var(--muted); }
.lt-ok { color: var(--ok, #16a34a); font-weight: 500; }
.lt-limit { color: var(--danger); }
.lt-item { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.lt-item:last-child { border-bottom: none; }
.lt-item.lt-applied { opacity: .55; }
.lt-msg { font-size: 13px; color: var(--text); font-weight: 500; margin-bottom: 3px; }
.lt-ctx { font-size: 12px; color: var(--muted); font-style: italic; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lt-fixes { display: flex; flex-wrap: wrap; gap: 5px; }
.lt-fix-btn { background: #eef2ff; border: 1px solid #c7d2fe; color: var(--accent); border-radius: 5px; padding: 2px 10px; font-size: 12px; cursor: pointer; font-weight: 500; }
.lt-fix-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.lt-no-fix { font-size: 12px; color: var(--muted); }
.lt-applied-label { font-size: 12px; color: var(--ok, #16a34a); font-weight: 500; }
:root[data-theme="dark"] .lt-panel-head { background: #1e2130; }
:root[data-theme="dark"] .lt-fix-btn { background: #1e2a4a; border-color: #3b4a7a; }

/* ── LanguageTool panel ──────────────────────────────────────────────────── */
.lt-panel { margin: 10px 0 0; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); overflow: hidden; }
.lt-panel[hidden] { display: none; }
.lt-panel-head { display: flex; align-items: center; justify-content: space-between; padding: 9px 14px; background: #f7f8fc; border-bottom: 1px solid var(--border); }
.lt-panel-title { font-size: 13px; font-weight: 600; color: var(--text); }
.lt-panel-close { background: none; border: none; cursor: pointer; font-size: 16px; color: var(--muted); padding: 0 2px; line-height: 1; }
.lt-panel-close:hover { color: var(--danger); }
.lt-list { list-style: none; margin: 0; padding: 0; max-height: 260px; overflow-y: auto; }
.lt-checking, .lt-ok, .lt-limit { padding: 12px 14px; font-size: 13px; color: var(--muted); }
.lt-ok { color: var(--ok, #16a34a); font-weight: 500; }
.lt-limit { color: var(--danger); }
.lt-item { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.lt-item:last-child { border-bottom: none; }
.lt-item.lt-applied { opacity: .55; }
.lt-msg { font-size: 13px; color: var(--text); font-weight: 500; margin-bottom: 3px; }
.lt-ctx { font-size: 12px; color: var(--muted); font-style: italic; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lt-fixes { display: flex; flex-wrap: wrap; gap: 5px; }
.lt-fix-btn { background: #eef2ff; border: 1px solid #c7d2fe; color: var(--accent); border-radius: 5px; padding: 2px 10px; font-size: 12px; cursor: pointer; font-weight: 500; }
.lt-fix-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.lt-no-fix { font-size: 12px; color: var(--muted); }
.lt-applied-label { font-size: 12px; color: var(--ok, #16a34a); font-weight: 500; }
:root[data-theme="dark"] .lt-panel-head { background: #1e2130; }
:root[data-theme="dark"] .lt-fix-btn { background: #1e2a4a; border-color: #3b4a7a; }

/* ── Compose Gmail-style floating panel ───────────────────────────────── */
.compose-view { background: transparent !important; padding: 0; pointer-events: none; }
.compose-view > form { pointer-events: none; }
.compose-card {
    position: fixed; bottom: 0; left: 32px; z-index: 1200;
    width: 560px; height: 560px;
    background: var(--panel); border: 1px solid var(--border); border-bottom: none;
    border-radius: 8px 8px 0 0;
    box-shadow: 0 8px 40px rgba(0,0,0,.22), 0 2px 8px rgba(0,0,0,.12);
    display: flex; flex-direction: column; overflow: hidden;
    pointer-events: all;
}
.compose-card.compose-minimised { height: 44px; overflow: hidden; }
.compose-card.compose-maximised { width: 100% !important; left: 0 !important; right: 0; height: 100% !important; bottom: 0; border-radius: 0; }

/* Header strip */
.compose-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 8px 0 16px; height: 44px; min-height: 44px;
    background: #404040; cursor: grab; flex-shrink: 0;
}
.compose-head:active { cursor: grabbing; }
.compose-mode-label { font-weight: 600; font-size: 13.5px; color: #fff; user-select: none; }
.compose-head-actions { display: flex; align-items: center; gap: 2px; }
.compose-win-btn {
    border: none !important; background: transparent !important; color: rgba(255,255,255,.75) !important;
    border-radius: 50% !important; width: 28px !important; height: 28px !important;
    padding: 0 !important; min-width: 0 !important;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: background .12s, color .12s; text-decoration: none;
    flex-shrink: 0;
}
.compose-win-btn:hover { background: rgba(255,255,255,.18) !important; color: #fff !important; text-decoration: none; }
.compose-win-close:hover { background: rgba(220,60,60,.7) !important; color: #fff !important; }

/* Recipient rows */
.cfield {
    display: flex; align-items: center; min-height: 44px;
    border-bottom: 1px solid var(--border); padding: 0 0 0 20px;
    gap: 0;
}
.cfield-label {
    width: 52px; font-size: 13px; font-weight: 600; color: var(--muted);
    flex-shrink: 0; line-height: 44px;
}
.cfield-toggle {
    flex-shrink: 0; border: none; background: none; color: var(--muted);
    font-size: 12px; font-weight: 600; cursor: pointer; padding: 0 18px;
    height: 44px; transition: color .15s;
}
.cfield-toggle:hover { color: var(--accent); background: none; }

/* Chips wrap */
.chips-wrap {
    flex: 1; display: flex; align-items: center; min-height: 44px;
    cursor: text; padding: 4px 12px 4px 0; gap: 0;
}
.chips-inner {
    flex: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 5px; min-height: 36px;
}
.chip {
    display: inline-flex; align-items: center; gap: 3px; max-width: 240px;
    background: var(--accent-soft); color: var(--accent-dark);
    border: 1px solid #c0d9f5; border-radius: 4px;
    padding: 3px 6px 3px 10px; font-size: 13px; font-weight: 500;
    animation: chipIn .12s ease;
}
@keyframes chipIn { from { opacity:0; transform:scale(.85); } to { opacity:1; transform:scale(1); } }
.chip-invalid { background: #fef0f0; color: var(--danger); border-color: #f5c0c0; }
.chip-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip-del {
    border: none; background: none; padding: 0 2px; cursor: pointer;
    color: inherit; opacity: .65; font-size: 16px; line-height: 1; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: opacity .12s, background .12s;
}
.chip-del:hover { opacity: 1; background: rgba(0,0,0,.08); }
.chips-input {
    border: none; outline: none; background: none; font-size: 14px;
    font-family: inherit; min-width: 180px; flex: 1; padding: 4px 0;
    color: var(--text);
}
.chips-input::placeholder { color: var(--muted); }

/* Autocomplete dropdown */
.addr-suggestions {
    position: fixed; z-index: 2000; list-style: none; margin: 0; padding: 4px 0;
    background: var(--panel); border: 1px solid var(--border);
    border-radius: 6px; box-shadow: var(--shadow-lg); max-height: 220px; overflow-y: auto;
    pointer-events: all;
}
.addr-suggestions li {
    padding: 9px 14px; cursor: pointer; font-size: 13px; color: var(--text);
}
.addr-suggestions li:hover { background: var(--accent-soft); color: var(--accent-dark); }

/* Subject row */
.cfield--subject { border-bottom: 1px solid var(--border); }
.csubject-input {
    flex: 1; border: none; outline: none; background: none;
    font-size: 15px; font-weight: 600; padding: 11px 20px 11px 0;
    color: var(--text); width: 100%;
}
.csubject-input::placeholder { color: var(--muted); font-weight: 400; }

/* Compose toolbar (in bottom bar) */
.compose-toolbar {
    display: flex; align-items: center; gap: 1px; flex-wrap: nowrap; overflow: hidden;
}
.tb-btn {
    border: none; background: none; border-radius: 6px; padding: 5px 7px;
    color: var(--muted); cursor: pointer; display: flex; align-items: center;
    justify-content: center; transition: background .12s, color .12s;
    font-size: 13px; font-family: inherit; min-width: 28px;
}
.tb-btn:hover { background: var(--accent-soft); color: var(--accent); }
.tb-btn:active { background: #d6eaf9; }
.tb-div { width: 1px; height: 18px; background: var(--border); margin: 0 4px; }
.tb-select {
    border: 1px solid var(--border); border-radius: 6px; background: var(--panel);
    color: var(--text); font-size: 12.5px; font-family: inherit; padding: 4px 6px;
    cursor: pointer; max-width: 110px;
}
.tb-select:focus { outline: none; border-color: var(--accent); }
.tb-size { max-width: 80px; }
.tb-clean { color: var(--accent); }

/* Editor area */
.editor-reply {
    min-height: 120px; border: none; border-radius: 0;
    padding: 16px 20px 8px; box-shadow: none;
}
.editor-reply:focus { border: none; box-shadow: none; }
.editor[data-placeholder]:empty:before {
    content: attr(data-placeholder); color: var(--muted); pointer-events: none;
}
.compose-card .editor:not(.editor-reply) {
    border: none; border-radius: 0; min-height: 120px; padding: 12px 16px; flex: 1;
}
.compose-card .editor:not(.editor-reply):focus { border: none; box-shadow: none; }

/* Quote toggle bar */
.quote-toggle-bar { padding: 4px 20px 0; }
.quote-toggle-btn {
    border: none; background: none; color: var(--muted); font-size: 12.5px;
    cursor: pointer; display: flex; align-items: center; gap: 5px; padding: 4px 6px;
    border-radius: 6px; transition: background .12s, color .12s;
}
.quote-toggle-btn:hover { background: var(--accent-soft); color: var(--accent); }
.quote-block {
    margin: 4px 20px 0; padding: 10px 14px;
    border-left: 3px solid var(--border); color: var(--muted);
    font-size: 13px; line-height: 1.6; max-height: 300px; overflow-y: auto;
}

/* Attachments section */
.compose-attach { padding: 6px 14px; border-top: 1px solid var(--border); }
.drop-zone {
    border: 1.5px dashed var(--border); border-radius: 6px;
    padding: 10px 16px; cursor: pointer; transition: border-color .15s, background .15s;
    display: inline-flex;
}
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--accent); background: var(--accent-soft); }
.drop-zone input[type=file] { position:absolute; opacity:0; width:0; height:0; }
.drop-zone-content { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 13px; pointer-events: none; }
.drop-hint-sub { color: #aaa; font-size: 12px; }
.attach-limit-note { font-size: 11.5px; color: var(--muted); margin-top: 5px; }
.file-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.file-chip { background: var(--accent-soft); color: var(--accent-dark); border-radius: 4px; padding: 3px 12px; font-size: 12.5px; }

/* Bottom bar: Send + toolbar */
.compose-bottom-bar {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px; border-top: 1px solid var(--border);
    background: var(--panel); flex-shrink: 0;
}
.compose-send-group { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.compose-send-btn {
    background: var(--accent); color: #fff; border: none;
    border-radius: 20px; padding: 8px 20px; font-size: 13.5px; font-weight: 700;
    cursor: pointer; transition: background .15s, box-shadow .15s;
    box-shadow: 0 1px 4px rgba(0,0,0,.2);
    letter-spacing: .01em;
}
.compose-send-btn:hover { background: #1a73e8; box-shadow: 0 2px 8px rgba(26,115,232,.4); }
.compose-send-btn:active { filter: brightness(.93); }
.draft-status { font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.compose-error { background: #fef0f0; color: var(--danger); border-radius: 6px; padding: 10px 14px; margin: 10px 20px; font-size: 13.5px; }

.contacts-grid { display: grid; grid-template-columns: 1fr 320px; gap: 24px; }
.contact-list, .contact-form { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 18px; box-shadow: var(--shadow); }
.contact-list table { width: 100%; border-collapse: collapse; }
.contact-list th, .contact-list td { text-align: left; padding: 10px 8px; border-bottom: 1px solid #f0f1f5; }
.contact-list th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.contact-form label, .settings-form label { display: block; margin-top: 12px; font-weight: 600; font-size: 13px; }
.contact-form input, .contact-form textarea, .settings-form input, .settings-form textarea {
    width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 6px; margin-top: 5px; font-size: 14px;
}
.contact-form input:focus, .contact-form textarea:focus, .settings-form input:focus, .settings-form textarea:focus {
    outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74,144,217,.12);
}
.contact-form .primary, .settings-form .primary { margin-top: 16px; }

/* ── Signature rich-text editor ────────────────────────────────────────── */
.sig-apply-btn { background: linear-gradient(135deg, #4aa8e8 0%, #1f63ad 100%) !important; box-shadow: 0 3px 12px rgba(31,99,173,.5) !important; font-weight: 700 !important; }
.sig-apply-btn:hover { filter: brightness(1.1); }
.sig-editor-wrap { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; margin-top: 6px; background: #fff; }
.sig-toolbar { display: flex; align-items: center; gap: 3px; padding: 5px 8px; border-bottom: 1px solid var(--border); background: #f7f8fc; flex-wrap: wrap; }
.sig-tb-btn { background: none; border: 1px solid transparent; border-radius: 5px; cursor: pointer; padding: 3px 7px; font-size: 13px; color: var(--text); line-height: 1.4; }
.sig-tb-btn:hover { background: #e8eaf0; border-color: var(--border); }
.sig-tb-div { width: 1px; height: 16px; background: var(--border); margin: 0 3px; }
.sig-tb-select { border: 1px solid var(--border); border-radius: 5px; padding: 3px 6px; font-size: 12px; background: #fff; color: var(--text); cursor: pointer; }
.sig-editor { min-height: 90px; padding: 10px 12px; font-size: 14px; outline: none; }
.sig-editor:focus { box-shadow: inset 0 0 0 2px rgba(74,144,217,.15); }
.sig-preview-label { font-size: 12px; font-weight: 600; color: var(--muted); margin: 10px 0 4px; text-transform: uppercase; letter-spacing: .05em; }
.sig-preview { border: 1px solid var(--border); border-radius: 6px; padding: 10px 14px; background: #f9fafc; font-size: 13.5px; color: var(--text); }
.sig-preview-sep { display: block; color: var(--muted); margin-bottom: 4px; }
:root[data-theme="dark"] .sig-editor-wrap, :root[data-theme="dark"] .sig-preview { background: #1a1d2e; }
:root[data-theme="dark"] .sig-toolbar { background: #1e2130; }

/* ---- Settings cards / background -------------------------------------- */
.settings-cards { display: grid; grid-template-columns: 1fr; gap: 20px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 24px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 14px; }
.card h3.sub { margin-top: 4px; }
.card hr { border: none; border-top: 1px solid var(--border); margin: 24px 0 18px; }
.small { font-size: 12px; }
.bg-preview { width: 100%; height: 160px; border-radius: 6px; margin: 6px 0 14px; background-size: cover; background-position: center; background-repeat: no-repeat; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; background-color: var(--surface-2, rgba(0,0,0,.03)); overflow: hidden; }
.bg-preview-hint { color: var(--muted); font-size: 13px; text-align: center; padding: 0 16px; }
.bg-fileinfo { display: flex; align-items: center; gap: 10px; margin: -6px 0 12px; }
.bg-chip { display: inline-block; max-width: 60%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 3px 10px; border-radius: 4px; background: var(--accent-soft, rgba(31,122,224,.12)); color: var(--accent, #1f7ae0); font-size: 12px; font-weight: 600; }
.bg-rec { margin: 4px 0 8px; line-height: 1.5; }
.settings-form input[type=range] { width: 100%; margin-top: 6px; accent-color: var(--accent); }
.btn-row { margin-top: 18px; }
.settings-form { max-width: none; }
.settings-form select, .move-form select {
    padding: 9px 11px; border: 1px solid var(--border); border-radius: 6px; margin-top: 5px;
    font-size: 14px; font-family: inherit; background: var(--panel); color: var(--text); cursor: pointer;
}
.settings-form select:focus, .move-form select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(43,127,214,.12); }

/* ---- Background image layers ------------------------------------------- */
/* The full Aero Glass system lives in a single consolidated block further down
   (search "AERO GLASS SYSTEM"); these are just the fixed background layers. */
.app-bg { position: fixed; inset: 0; z-index: -2; background-size: cover; background-position: center; background-repeat: no-repeat; }
.app-bg-dim { position: fixed; inset: 0; z-index: -1; }

/* ---- Theme toggle ------------------------------------------------------ */
.theme-toggle {
    border: 1px solid transparent; background: transparent; color: var(--muted);
    width: 34px; height: 34px; border-radius: 6px; padding: 0;
    display: inline-flex; align-items: center; justify-content: center;
}
.theme-toggle svg { display: block; }
.theme-toggle:hover { background: rgba(255,255,255,.5); color: var(--accent); }

/* ---- Collapsible folder groups ----------------------------------------- */
.folder-group { margin-bottom: 10px; }
.group-head {
    display: flex; align-items: center; gap: 7px; cursor: pointer; user-select: none;
    font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
    color: var(--muted); padding: 8px 11px 6px;
}
.group-head:hover { color: var(--text); }
.group-head .chev { transition: transform .15s; font-size: 10px; }
.folder-group.collapsed .chev { transform: rotate(-90deg); }
.folder-group.collapsed ul { display: none; }
.folders .ficon { display: inline-block; width: 18px; text-align: center; margin-right: 4px; }
.fname { display: flex; align-items: center; gap: 8px; }
/* Gmail-style folder SVG icons */
svg.fi {
    width: 18px; height: 18px; flex-shrink: 0;
    color: var(--muted); transition: color .15s;
    vertical-align: middle;
}
.folders li.active svg.fi { color: var(--accent); }
.folders li a:hover svg.fi { color: var(--accent); }
.compose-btn svg { color: #fff; }

/* ---- Three-pane layout ------------------------------------------------- */
.three-pane .messages { flex: 0 0 380px; max-width: 380px; border-right: 1px solid var(--border); }
.three-pane .preview { flex: 1; overflow-y: auto; background: var(--panel); padding: 24px 28px; position: relative; }
.preview .msg-more-menu { position: fixed; }  /* fixed so it escapes the overflow:auto scroll container */

.msglist-compact { list-style: none; margin: 0; padding: 0; flex: 1; overflow-y: auto; }
.msglist-compact li {
    position: relative; display: flex; gap: 11px; align-items: flex-start;
    padding: 12px 16px; border-bottom: 1px solid #f0f1f5; cursor: pointer; transition: background .12s;
}
.msglist-compact li:hover { background: #f8f9fc; }
.msglist-compact li.selected { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent); }
.msglist-compact li.unread::after {
    content: ""; position: absolute; left: 5px; top: 21px; width: 7px; height: 7px;
    border-radius: 50%; background: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .18);
}
.mc-main { flex: 1; min-width: 0; }
.mc-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.mc-from { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mc-date { color: var(--muted); font-size: 12px; white-space: nowrap; flex-shrink: 0; }
.mc-subject { color: var(--muted); font-size: 13px; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.msglist-compact li.unread .mc-from { font-weight: 800; }
.msglist-compact li.unread .mc-subject { color: var(--text); font-weight: 600; }
.mc-link { position: absolute; inset: 0; opacity: 0; }
.three-pane .toolbar .count { background: var(--accent-soft); color: var(--accent); font-weight: 700; padding: 3px 10px; border-radius: 6px; font-size: 12px; flex-shrink: 0; }
.three-pane .toolbar { gap: 8px; }

/* Checkbox column — hidden until row hover or checked */
/* z-index: 1 so these sit above the .mc-link overlay that covers the whole row */
.msg-cb-wrap {
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; width: 28px; height: 28px;
    position: relative; z-index: 1; cursor: pointer;
}
.msg-cb {
    width: 15px; height: 15px; accent-color: var(--accent); cursor: pointer;
    margin: 0; flex-shrink: 0; opacity: 0; transition: opacity .1s;
    pointer-events: all;
}
.msglist-compact li:hover .msg-cb,
.msglist-compact li:has(.msg-cb:checked) .msg-cb,
.msg-cb:checked { opacity: 1; }
/* Star button also needs to be above the mc-link overlay */
.msglist-compact .star-btn { position: relative; z-index: 1; }

.preview .msg-actions { margin-bottom: 18px; }
.preview-empty, .preview-loading { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; color: var(--muted); text-align: center; }
.preview-empty .empty-ic { display: block; margin-bottom: 14px; line-height: 0; opacity: .8; }
.preview-loading { font-size: 14px; }

/* ---- Dark mode --------------------------------------------------------- */
:root[data-theme="dark"] {
    --accent: #818cf8;
    --accent-dark: #6d78f0;
    --accent-soft: #262a3f;
    --bg: #0f1117;
    --panel: #181b25;
    --border: #2a2e3c;
    --text: #e6e8ef;
    --muted: #9197a8;
    --shadow: 0 1px 2px rgba(0,0,0,.4);
    --shadow-md: 0 4px 14px rgba(0,0,0,.45);
    --shadow-lg: 0 10px 40px rgba(0,0,0,.5);
    --accent-rgb: 129,140,248;
    --scrollbar-thumb: rgba(255,255,255,.16);
    --scrollbar-thumb-hover: rgba(255,255,255,.28);
}
:root[data-theme="dark"] .msglist-compact li,
:root[data-theme="dark"] .contact-list th, :root[data-theme="dark"] .contact-list td { border-bottom-color: #23262f; }
:root[data-theme="dark"] .msglist-compact li:hover,
:root[data-theme="dark"] .folders li a:hover,
:root[data-theme="dark"] .btn:hover, :root[data-theme="dark"] button:hover { background: #20242f; }
:root[data-theme="dark"] .flash { background: #0f2e22; color: #6ee7b7; border-color: #14533b; }
/* The email iframe stays white (messages assume a light page); the compose editor is
   our own UI, so it follows dark mode instead of being a glaring white box. */
:root[data-theme="dark"] .html-body { background: #fff; }
:root[data-theme="dark"] .editor {
    background-color: rgba(255,255,255,.06);
    color: var(--text);
    border-color: rgba(255,255,255,.15);
}
:root[data-theme="dark"] select {
    background-color: rgba(255,255,255,.07);
    border-color: rgba(255,255,255,.15);
    color: var(--text);
    color-scheme: dark;
}
:root[data-theme="dark"] .editor:empty:before,
:root[data-theme="dark"] .editor .muted { color: rgba(255,255,255,.45); }
:root[data-theme="dark"] .auth-form-wrap { background: var(--panel); }
:root[data-theme="dark"] .theme-toggle:hover { background: #20242f; }
:root[data-theme="dark"] .topbar nav a.nav-active { background: rgba(129,140,248,.18); color: var(--accent); }

/* ====================================================================== */
/* ====  Clean Professional Theme                                     ===== */
/* ====================================================================== */

/* Neutral page background — not the jarring Aero blue gradient */
body {
    background: #eef0f5;
}
body::before, body::after { display: none; }

/* All content panels: clean white with subtle border */
.folders, .toolbar, .three-pane .preview, .msglist-compact,
.card, .contact-list, .contact-form, .compose-view #composeForm,
.login-card, .auth-form-wrap, .empty, .attachments {
    background-color: #ffffff;
    border-color: var(--border);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

/* Messages section: white — never transparent */
.messages { background: #fff; }
.toolbar { background: #fff; border-bottom: 1px solid var(--border); box-shadow: none; }
.folders { border-right: 1px solid var(--border); }
.three-pane .messages { border-right: 1px solid var(--border); }

/* Cards: clean shadow */
.card, .contact-list, .contact-form, .compose-view #composeForm, .login-card, .empty {
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

/* Buttons: clean flat — no glossy gradients */
.primary, .compose-btn {
    background-image: none;
    box-shadow: 0 1px 3px rgba(43,127,214,.25);
    text-shadow: none;
    color: #fff;
}
.primary:hover, .compose-btn:hover { filter: brightness(1.06); }
.primary:active, .compose-btn:active { filter: brightness(.96); box-shadow: none; }

.btn, button:not(.primary):not(.compose-btn):not(.compose-send-btn):not(.linkbtn):not(.theme-toggle):not(.auth-pw-btn):not(.auth-captcha-refresh):not(.tb-btn):not(.quote-toggle-btn) {
    background-image: none;
    background: #fff;
    border: 1px solid #d1d5db;
    box-shadow: none;
}
.btn:hover, button:not(.primary):not(.compose-btn):not(.compose-send-btn):not(.linkbtn):not(.theme-toggle):not(.auth-pw-btn):not(.auth-captcha-refresh):not(.tb-btn):not(.quote-toggle-btn):hover {
    background-image: none;
    background: #f5f6f8;
}

/* Input fields: clean white */
.search input[type=search], .field input, .field textarea,
.contact-form input, .contact-form textarea, .settings-form input, .settings-form textarea, .editor {
    background-color: #fff;
    border: 1px solid #d1d5db;
    box-shadow: none;
}

/* Message list items */
.msglist-compact { border-radius: 0; }
.msglist-compact li { border-bottom-color: #f0f1f5; }
.msglist-compact li:hover { background: #f8f9fc; }
.msglist-compact li.selected {
    background: #e8f0fe;
    box-shadow: inset 3px 0 0 #4aa8e8;
}

/* Folder active */
.folders li a:hover { background: var(--row-hover); }
.folders li.active > a { background: var(--accent-soft); color: var(--accent); border-left-color: var(--accent); }
.badge { box-shadow: none; }

/* Login */
.auth-form-wrap { box-shadow: -6px 0 24px rgba(0,0,0,.1); }

/* ======================================================================= */
/* ====  AERO GLASS SYSTEM  (active only when a background image is set) === */
/* ======================================================================= */
/* Colours (--glass-text/-accent/-border/-highlight, tint hue/sat, fill-l) are
   published by the adaptive engine in _Layout.cshtml based on the uploaded
   image. Panel translucency + blur are derived here from --glass-strength
   (0–100, set inline on <html> from the user's "Glass strength" slider), so
   the same recipe covers light images, dark images and dark-mode.            */

body.has-bg {
    background: none;
    color: var(--glass-text, #10151f);
    /* strength 0 → alpha .82 (subtle), strength 100 → alpha .30 (very see-through) */
    --_ga: calc(0.82 - (var(--glass-strength, 55) / 100) * 0.52);
    --glass-bg:        hsla(var(--glass-tint-h, 210), var(--glass-tint-s, 24%), var(--glass-fill-l, 97%), var(--_ga));
    --glass-bg-strong: hsla(var(--glass-tint-h, 210), var(--glass-tint-s, 24%), var(--glass-fill-l, 97%), calc(var(--_ga) + 0.16));
    --glass-blur:      calc(8px + (var(--glass-strength, 55) / 100) * 16px);
}

/* Shared frosted-glass recipe: tinted translucent fill + blur/saturate, a bright
   1px inner top highlight (the signature Aero light line), a soft tinted border,
   a gentle top-to-bottom reflection sheen, and a lifting drop shadow.          */
body.has-bg .topbar,
body.has-bg .folders,
body.has-bg .toolbar,
body.has-bg .messages,
body.has-bg .msglist,
body.has-bg .msglist-compact,
body.has-bg .three-pane .preview,
body.has-bg .message-view,
body.has-bg .card,
body.has-bg .contact-list,
body.has-bg .contact-form,
body.has-bg .settings-nav,
body.has-bg .settings-content,
body.has-bg .compose-card,
body.has-bg .empty,
body.has-bg .addr-suggestions,
body.has-bg .kbd-help-inner {
    background-color: var(--glass-bg);
    background-image: linear-gradient(to bottom, rgba(255,255,255,.16), rgba(255,255,255,0) 58%);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.7);
    backdrop-filter: blur(var(--glass-blur)) saturate(1.7);
    border-color: var(--glass-border, rgba(255,255,255,.35));
    box-shadow: inset 0 1px 0 var(--glass-highlight, rgba(255,255,255,.6)), var(--shadow-lg);
    transition: background-color .25s ease, backdrop-filter .25s ease, border-color .25s ease;
}
/* Containers that only frame glass children stay fully transparent. */
body.has-bg .messages { box-shadow: none; background-image: none; background-color: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }
body.has-bg .compose-view, body.has-bg .contacts-view, body.has-bg .settings-view { background: transparent; }

/* Reading + editing surfaces sit a little more opaque for long-form legibility.
   Note: #composeForm itself deliberately never gets filter/backdrop-filter/transform —
   it contains position:fixed descendants (.compose-card, .addr-suggestions), and any of
   those properties on an ancestor turns it into their containing block, which detaches
   them from the viewport and throws them off-screen. The glass look lives on .compose-card
   itself instead. */
body.has-bg .three-pane .preview,
body.has-bg .message-view,
body.has-bg .compose-card { background-color: var(--glass-bg-strong); }

/* Topbar: the Aero coloured "titlebar" — slightly stronger tint + sheen. */
body.has-bg .topbar { background-color: var(--glass-bg-strong); border-bottom: 1px solid var(--glass-border); }
body.has-bg .topbar .brand { color: var(--glass-accent, #1f6fc4); }
body.has-bg .topbar .account, body.has-bg .topbar .account span { color: var(--glass-muted); }
body.has-bg .topbar nav a { color: var(--glass-muted); }
body.has-bg .topbar nav a:hover, body.has-bg .topbar nav a.nav-active { color: var(--glass-accent); background: var(--glass-accent-soft); }
body.has-bg .theme-toggle { color: var(--glass-muted); }
body.has-bg .theme-toggle:hover { color: var(--glass-accent); background: var(--glass-accent-soft); }

/* Global search field reads as etched glass. */
body.has-bg .global-search input[type=search] {
    background: var(--glass-bg-strong); border-color: var(--glass-border); color: var(--glass-text);
}
body.has-bg .global-search input[type=search]::placeholder { color: var(--glass-muted); }
body.has-bg .gs-icon, body.has-bg .gs-kbd { color: var(--glass-muted); }

/* Adaptive foreground palette. */
body.has-bg .muted,
body.has-bg .mc-subject, body.has-bg .mc-date, body.has-bg .col-date,
body.has-bg .sec-sub, body.has-bg .sec-title, body.has-bg .field-hint,
body.has-bg .settings-nav-title, body.has-bg .toolbar .count { color: var(--glass-muted); }
body.has-bg .mc-from, body.has-bg .col-from, body.has-bg .col-subject a,
body.has-bg .msg-subject, body.has-bg .gm-subject, body.has-bg .msg-header h2, body.has-bg .msg-meta-block .meta strong,
body.has-bg .gm-sender-name strong,
body.has-bg h1, body.has-bg h2, body.has-bg h3 { color: var(--glass-text); }
body.has-bg .settings-nav-item { color: var(--glass-muted); }
body.has-bg .settings-nav-item:hover { color: var(--glass-text); background: var(--glass-accent-soft); }
body.has-bg .settings-nav-item.active { color: var(--glass-accent); background: var(--glass-accent-soft); }
body.has-bg .settings-nav-item.active svg { stroke: var(--glass-accent); }

/* Accent-tinted controls for a cohesive coloured-glass feel. */
body.has-bg .primary, body.has-bg .compose-btn, body.has-bg .compose-send-btn,
body.has-bg .badge, body.has-bg .msg-count { background: var(--glass-accent); border-color: var(--glass-accent); color: #fff; }
body.has-bg .folders li.active > a { background: var(--glass-accent-soft); color: var(--glass-accent); border-left-color: var(--glass-accent); }
body.has-bg .folders li a { color: var(--glass-text); }
body.has-bg .folders li a:hover { background: var(--glass-accent-soft); }

/* Row hover / selection + hairline borders on glass. */
body.has-bg .msglist tr:hover, body.has-bg .msglist-compact li:hover { background: var(--glass-accent-soft); }
body.has-bg .msglist-compact li.selected { background: var(--glass-accent-soft); box-shadow: inset 3px 0 0 var(--glass-accent); }
body.has-bg .msglist-compact li, body.has-bg .msglist tr { border-bottom-color: var(--glass-border); }
body.has-bg .folders { border-right-color: var(--glass-border); }
body.has-bg .toolbar { border-bottom-color: var(--glass-border); }

/* Compose surfaces. Colours route through the glass palette (not the light/dark
   theme vars) so the toolbar stays legible even when the manually-toggled theme
   and the image-sampled glass mode disagree. */
body.has-bg .compose-bottom-bar { background: transparent; border-top-color: var(--glass-border); }
body.has-bg .cfield, body.has-bg .cfield--subject { border-bottom-color: var(--glass-border); }
body.has-bg .cfield-label, body.has-bg .cfield-toggle, body.has-bg .draft-status,
body.has-bg .attach-limit-note, body.has-bg .drop-zone-content { color: var(--glass-muted); }
body.has-bg .csubject-input, body.has-bg .chips-input, body.has-bg .from-select { color: var(--glass-text); }
body.has-bg .csubject-input::placeholder, body.has-bg .chips-input::placeholder { color: var(--glass-muted); }
body.has-bg .tb-btn, body.has-bg .quote-toggle-btn { color: var(--glass-muted); background: none; }
body.has-bg .tb-btn:hover, body.has-bg .quote-toggle-btn:hover { background: var(--glass-accent-soft); color: var(--glass-accent); }
body.has-bg .tb-div { background: var(--glass-border); }
body.has-bg .tb-select {
    background: var(--glass-bg-strong); border-color: var(--glass-border); color: var(--glass-text);
}
body.has-bg .drop-zone { border-color: var(--glass-border); }
body.has-bg .drop-zone:hover, body.has-bg .drop-zone.drag-over { border-color: var(--glass-accent); background: var(--glass-accent-soft); }
body.has-bg .quote-block { color: var(--glass-muted); border-left-color: var(--glass-border); }

/* Rounded corners on the floating glass for extra polish. */
body.has-bg .card, body.has-bg .contact-list, body.has-bg .contact-form,
body.has-bg .empty, body.has-bg .addr-suggestions, body.has-bg .kbd-help-inner { border-radius: 10px; }

/* Graceful fallback: if backdrop-filter is unavailable or the user prefers
   reduced transparency, make the glass nearly solid so text never loses contrast. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    body.has-bg { --_ga: 0.92; }
}
@media (prefers-reduced-transparency: reduce) {
    body.has-bg { --_ga: 0.95; }
}

/* ---- Clean dark mode --------------------------------------------------- */
:root[data-theme="dark"] body { background: #0f1117; }
:root[data-theme="dark"] body::before { display: none; }

/* Scoped to body:not(.has-bg) so the AERO GLASS SYSTEM keeps control of panel
   backgrounds when the user has a background image, even in dark mode. */
:root[data-theme="dark"] body:not(.has-bg) .topbar, :root[data-theme="dark"] body:not(.has-bg) .folders, :root[data-theme="dark"] body:not(.has-bg) .toolbar,
:root[data-theme="dark"] body:not(.has-bg) .three-pane .preview, :root[data-theme="dark"] body:not(.has-bg) .msglist-compact,
:root[data-theme="dark"] body:not(.has-bg) .card, :root[data-theme="dark"] body:not(.has-bg) .contact-list, :root[data-theme="dark"] body:not(.has-bg) .contact-form,
:root[data-theme="dark"] body:not(.has-bg) .compose-view #composeForm, :root[data-theme="dark"] .login-card,
:root[data-theme="dark"] .auth-form-wrap, :root[data-theme="dark"] body:not(.has-bg) .empty, :root[data-theme="dark"] .attachments {
    background-color: var(--panel);
    border-color: var(--border);
}
:root[data-theme="dark"] body:not(.has-bg) .messages { background: var(--panel); }
:root[data-theme="dark"] .search input[type=search],
:root[data-theme="dark"] .field input, :root[data-theme="dark"] .field textarea,
:root[data-theme="dark"] .contact-form input, :root[data-theme="dark"] .contact-form textarea,
:root[data-theme="dark"] .settings-form input, :root[data-theme="dark"] .settings-form textarea,
:root[data-theme="dark"] .settings-form select, :root[data-theme="dark"] .editor-toolbar select,
:root[data-theme="dark"] .move-form select {
    background-color: rgba(255,255,255,.06); border-color: rgba(255,255,255,.15); box-shadow: none;
}
:root[data-theme="dark"] .btn, :root[data-theme="dark"] button:not(.primary):not(.compose-btn):not(.compose-send-btn):not(.linkbtn):not(.tb-btn):not(.quote-toggle-btn) {
    background-image: none;
    background: rgba(255,255,255,.07);
    border-color: rgba(255,255,255,.18);
    box-shadow: none;
}
:root[data-theme="dark"] .btn:hover, :root[data-theme="dark"] button:not(.primary):not(.compose-btn):not(.compose-send-btn):not(.linkbtn):not(.tb-btn):not(.quote-toggle-btn):hover {
    background-image: none;
    background: rgba(255,255,255,.11);
}
:root[data-theme="dark"] .msglist-compact li:hover { background: rgba(255,255,255,.05); }

/* Dark mode + background image is handled entirely by the adaptive AERO GLASS
   SYSTEM above: the engine samples the image and, if it is dark, publishes a
   dark-glass palette (dark fill + light text) regardless of the theme toggle,
   so the frosted panels always match what is behind them. No overrides here. */

/* Dark mode — compose card */
:root[data-theme="dark"] .compose-card,
:root[data-theme="dark"] .compose-bottom-bar { background-color: rgba(28,32,44,.98); border-color: rgba(255,255,255,.1); }
:root[data-theme="dark"] .compose-head { background: #222; }
:root[data-theme="dark"] .cfield { border-color: rgba(255,255,255,.1); }
:root[data-theme="dark"] .chips-wrap { background: transparent; }
:root[data-theme="dark"] .chips-input { color: #e8eaf0; }
:root[data-theme="dark"] .csubject-input { color: #e8eaf0; background: transparent; }
:root[data-theme="dark"] .compose-card .editor { background: transparent; color: #e8eaf0; }
:root[data-theme="dark"] .tb-btn { color: rgba(255,255,255,.55); }
:root[data-theme="dark"] .tb-btn:hover { background: rgba(43,127,214,.2); color: var(--accent); }
:root[data-theme="dark"] .tb-select { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.15); color: #e8eaf0; }
:root[data-theme="dark"] .drop-zone { border-color: rgba(255,255,255,.2); }
:root[data-theme="dark"] .addr-suggestions { background-color: rgba(30,34,48,.98); border-color: rgba(255,255,255,.12); }
:root[data-theme="dark"] .kbd-help-inner { background: rgba(28,32,44,.98); }
:root[data-theme="dark"] .kbd-help-grid kbd { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.2); color: #e8eaf0; }

/* ---- Responsive -------------------------------------------------------- */
@media (max-width: 980px) {
    .three-pane .messages { flex: 1; max-width: none; }
    .three-pane .preview { display: none; }
}
@media (max-width: 860px) {
    .auth { grid-template-columns: 1fr; }
    .auth-brand { display: none; }
    .contacts-grid { grid-template-columns: 1fr; }
    .folders { width: 180px; }
    .search input[type=search] { width: 180px; }
}

/* =========================================================================
   RainLoop-style overrides & new components
   ========================================================================= */

/* ---- Sidebar (RainLoop: cleaner, left-border active indicator) ---------- */
.folders {
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
}
.folders li.active > a {
    background: var(--accent-soft);
    color: var(--accent);
    border-left: 3px solid var(--accent);
    padding-left: calc(12px - 3px);
    font-weight: 600;
}
.folders li > a {
    border-left: 3px solid transparent;
}
.badge {
    background: var(--accent);
    color: #fff;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 700;
    padding: 1px 6px;
    min-width: 18px;
    text-align: center;
}

/* ---- Message list row (RainLoop: bold unread, muted date, tighter) ------ */
.msglist-compact li {
    border-bottom: 1px solid var(--border);
    transition: background .13s var(--ease), box-shadow .13s var(--ease);
}
.msglist-compact li:hover { background: var(--row-hover); }
.msglist-compact li.selected { background: var(--row-selected); }
.msglist-compact li.unread .msg-from { font-weight: 700; color: var(--text); }
.msglist-compact li.unread .msg-subj { font-weight: 600; color: var(--text); }
.msglist-compact .msg-date { color: var(--muted); font-size: 12px; white-space: nowrap; }

/* ---- Sender avatar (initials circle, RainLoop-style) ------------------- */
.sender-avatar {
    width: 38px; height: 38px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 15px; font-weight: 700; color: #fff; flex-shrink: 0;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    letter-spacing: 0; user-select: none;
    /* Inner highlight + soft drop shadow reads as a subtly glossy token, not a flat disc. */
    box-shadow: inset 0 1px 0 rgba(255,255,255,.25), 0 1px 3px rgba(16,24,40,.18);
}
.msg-sender-row {
    display: flex; align-items: flex-start; gap: 14px;
    padding: 14px 20px 10px;
    border-bottom: 1px solid var(--border);
}
.msg-meta-block { flex: 1; min-width: 0; }
.msg-subject { font-size: 1.1rem; font-weight: 700; margin: 0 0 6px; color: var(--text); line-height: 1.3; }
.msg-meta-block .meta { font-size: 13px; color: var(--muted); margin: 2px 0; }
.msg-meta-block .meta strong { color: var(--text); font-weight: 600; }
.meta-cc { font-size: 13px; }

/* ---- Image-blocking banner ---------------------------------------------- */
.img-block-bar {
    display: flex; align-items: center; gap: 10px;
    background: #fffbe6; border: 1px solid #ffe58f; color: #7c5a00;
    padding: 8px 16px; font-size: 13px; border-radius: var(--radius);
    margin: 10px 16px 0;
}
.img-block-bar .linkbtn { color: var(--accent); font-weight: 600; padding: 2px 6px; }

/* ---- Unsubscribe button ------------------------------------------------- */
.btn[href*="unsubscribe"], a.btn[title*="Unsubscribe"] {
    color: var(--muted);
    border-color: var(--border);
    font-size: 12px;
    padding: 5px 10px;
}

/* ---- From identity selector in Compose ---------------------------------- */
.cfield--from { align-items: center; }
.from-select {
    flex: 1; border: none; background: transparent; font-size: 14px;
    color: var(--text); padding: 0; cursor: pointer; outline: none;
    font-family: inherit;
}
.from-select:focus { outline: none; }

/* ---- Settings: toggle row (notifications, group conversations) ---------- */
.toggle-row {
    display: flex; align-items: center; gap: 10px;
    padding: 7px 0; cursor: pointer; font-size: 14px; color: var(--text);
}
.toggle-row input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }
.toggle-row + .toggle-row { border-top: 1px solid var(--border); }

/* ---- Topbar: user avatar pill ------------------------------------------ */
.user-avatar-pill {
    display: flex; align-items: center; gap: 8px;
    padding: 4px 10px 4px 4px; border-radius: 20px;
    border: 1px solid var(--border); background: var(--panel);
    font-size: 13px; font-weight: 500; color: var(--text);
    transition: background .15s;
}
.user-avatar-pill:hover { background: var(--row-hover); text-decoration: none; }
.user-avatar-pill .mini-av {
    width: 26px; height: 26px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff; font-size: 11px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

/* ---- Print styles ------------------------------------------------------ */
@media print {
    .topbar, .folders, .toolbar, .msg-actions, .gm-toolbar, .gm-bottom-actions, .mdn-bar, .img-block-bar,
    .flash, .global-search, .topbar nav, .topbar .account,
    .three-pane .messages, nav { display: none !important; }
    .three-pane { display: block !important; }
    .three-pane .preview { display: block !important; width: 100% !important; padding: 0 !important; }
    .msg-sender-row { padding: 0 0 10px !important; }
    .html-body { height: auto !important; border: none !important; }
    body { background: #fff !important; }
}

/* ---- Dark mode additions for new components ----------------------------- */
:root[data-theme="dark"] .sender-avatar { background: linear-gradient(135deg, #4a90d9, #2f73b8); }
:root[data-theme="dark"] .img-block-bar { background: rgba(120,90,0,.18); border-color: rgba(255,200,0,.2); color: #e6c76e; }
:root[data-theme="dark"] .user-avatar-pill { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.15); color: #e6e8ef; }
:root[data-theme="dark"] .user-avatar-pill:hover { background: rgba(255,255,255,.12); }
:root[data-theme="dark"] .toggle-row { color: #e6e8ef; }
:root[data-theme="dark"] .toggle-row + .toggle-row { border-color: rgba(255,255,255,.1); }
:root[data-theme="dark"] .from-select { color: #e6e8ef; }
:root[data-theme="dark"] .sidebar-bg { background: rgba(22,25,35,.98); }
:root[data-theme="dark"] .folders { background: rgba(22,25,35,.98); border-color: rgba(255,255,255,.08); }
:root[data-theme="dark"] .badge { background: var(--accent); }
:root[data-theme="dark"] .msglist-compact li { border-color: rgba(255,255,255,.06); }
:root[data-theme="dark"] .msglist-compact li:hover { background: rgba(255,255,255,.04); }
:root[data-theme="dark"] .msglist-compact li.selected { background: rgba(74,144,217,.15); }
:root[data-theme="dark"] .msg-sender-row { border-color: rgba(255,255,255,.08); }
:root[data-theme="dark"] .msg-subject { color: #e6e8ef; }
:root[data-theme="dark"] .msg-meta-block .meta strong { color: #e6e8ef; }
:root[data-theme="dark"] .gm-subject { color: #e6e8ef; }
:root[data-theme="dark"] .gm-sender-name strong { color: #e6e8ef; }
:root[data-theme="dark"] .gm-sender-card { border-color: rgba(255,255,255,.08); }
:root[data-theme="dark"] .gm-bottom-actions { border-color: rgba(255,255,255,.08); }
:root[data-theme="dark"] .gm-bottom-btn { background: var(--panel); border-color: rgba(255,255,255,.12); color: #e6e8ef; }
:root[data-theme="dark"] .gm-bottom-btn:hover { background: rgba(255,255,255,.06); }
:root[data-theme="dark"] .gm-move-dropdown { background: #1e1e2e; border-color: rgba(255,255,255,.1); }
:root[data-theme="dark"] .attachments { background: rgba(255,255,255,.04); }

/* Star button states — list row and reading pane toolbar */
.star-btn { color: #ccc; background: none; border: none; cursor: pointer; padding: 2px 4px; line-height: 1; }
.star-btn:hover, .star-btn.starred { color: #f5a623; }
.star-msg-btn { transition: color .15s; }
.star-msg-btn.starred { color: #f5a623; }
.star-msg-btn.starred svg { fill: #f5a623; stroke: #f5a623; }