/* ==========================================================================
   SMail — Modern theme
   Desktop-class mail client. Dense, calm, no dashboard chrome.
   Tokens first; every component reads tokens, never raw colors.
   ========================================================================== */

/* -------------------------------------------------------------- tokens */
:root {
    --mail-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --mail-font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --mail-radius: 4px;
    --mail-radius-lg: 6px;
    --mail-transition: 120ms ease;

    --mail-bg: #eef0f3;
    --mail-surface: #ffffff;
    --mail-surface-2: #f6f7f9;
    --mail-surface-3: #eceef1;
    --mail-border: #dfe2e6;
    --mail-border-strong: #c9cdd3;
    --mail-text: #1b1f24;
    --mail-text-strong: #0c0f13;
    --mail-muted: #667085;
    --mail-muted-2: #98a2b3;
    --mail-hover: #f1f3f6;
    --mail-selected: #e4edfb;
    --mail-selected-border: #b8cff5;
    --mail-unread: #0c0f13;
    --mail-accent: #2f6fed;
    --mail-accent-hover: #245bd0;
    --mail-accent-text: #ffffff;
    --mail-accent-soft: #e8f0fe;
    --mail-danger: #d92d20;
    --mail-danger-soft: #fee4e2;
    --mail-warning: #b54708;
    --mail-warning-soft: #fef0c7;
    --mail-success: #067647;
    --mail-success-soft: #dcfae6;
    --mail-star: #f0a202;
    --mail-focus: #2f6fed;
    --mail-shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 16px rgba(16, 24, 40, .10);
    --mail-shadow-lg: 0 8px 32px rgba(16, 24, 40, .18);
    --mail-scrollbar: #c9cdd3;
    --mail-reader-bg: #ffffff;

    --sidebar-w: var(--theme-opt-sidebar-width, 240px);
    --list-w: var(--theme-opt-list-width, 380px);
    --topbar-h: 44px;
    --row-h: 64px;
    --row-pad-y: 8px;
    --row-pad-x: 12px;
    --list-font: 13px;
    --sidebar-item-h: 28px;
    --pad: 12px;
}

/* accent variants (theme option) */
:root[data-opt-accent="graphite"] { --mail-accent: #3b4252; --mail-accent-hover: #2e3440; --mail-accent-soft: #e8eaee; --mail-selected: #e6e8ec; --mail-selected-border: #c3c8d1; --mail-focus: #3b4252; }
:root[data-opt-accent="green"] { --mail-accent: #1f8a4c; --mail-accent-hover: #17703d; --mail-accent-soft: #e3f5ea; --mail-selected: #e1f3e8; --mail-selected-border: #b6e0c6; --mail-focus: #1f8a4c; }
:root[data-opt-accent="orange"] { --mail-accent: #d9640d; --mail-accent-hover: #b8530a; --mail-accent-soft: #fdebdc; --mail-selected: #fdeadb; --mail-selected-border: #f5c9a4; --mail-focus: #d9640d; }

/* dark scheme: layered, low-contrast surfaces, never pure black */
@media (prefers-color-scheme: dark) {
    :root:not([data-color-scheme="light"]) {
        --mail-bg: #131517; --mail-surface: #1b1e22; --mail-surface-2: #202429; --mail-surface-3: #262a30;
        --mail-border: #2c3138; --mail-border-strong: #3a404a; --mail-text: #d9dde3; --mail-text-strong: #f2f4f7;
        --mail-muted: #8b94a1; --mail-muted-2: #667080; --mail-hover: #23272d; --mail-selected: #24344f; --mail-selected-border: #365a95;
        --mail-unread: #f5f7fa; --mail-accent: #5b9cff; --mail-accent-hover: #7ab0ff; --mail-accent-soft: #1e2f4d;
        --mail-danger: #f97066; --mail-danger-soft: #3b1d1a; --mail-warning: #f7b955; --mail-warning-soft: #3a2c12;
        --mail-success: #47cd89; --mail-success-soft: #14321f; --mail-star: #f5b301; --mail-focus: #5b9cff;
        --mail-shadow: 0 1px 2px rgba(0,0,0,.4), 0 6px 20px rgba(0,0,0,.45); --mail-shadow-lg: 0 12px 40px rgba(0,0,0,.6);
        --mail-scrollbar: #3a404a; --mail-reader-bg: #ffffff;
    }
    :root:not([data-color-scheme="light"])[data-opt-accent="graphite"] { --mail-accent: #a3adc2; --mail-accent-hover: #c0c8d8; --mail-accent-soft: #2a2f3a; --mail-selected: #2b303a; --mail-selected-border: #4a5264; }
    :root:not([data-color-scheme="light"])[data-opt-accent="green"] { --mail-accent: #4ccb7f; --mail-accent-hover: #6fdc99; --mail-accent-soft: #163524; --mail-selected: #1b3a2a; --mail-selected-border: #2d6a45; }
    :root:not([data-color-scheme="light"])[data-opt-accent="orange"] { --mail-accent: #ff9a4d; --mail-accent-hover: #ffb073; --mail-accent-soft: #3d2413; --mail-selected: #40271a; --mail-selected-border: #7a4a2a; }
}
:root[data-color-scheme="dark"] {
    --mail-bg: #131517; --mail-surface: #1b1e22; --mail-surface-2: #202429; --mail-surface-3: #262a30;
    --mail-border: #2c3138; --mail-border-strong: #3a404a; --mail-text: #d9dde3; --mail-text-strong: #f2f4f7;
    --mail-muted: #8b94a1; --mail-muted-2: #667080; --mail-hover: #23272d; --mail-selected: #24344f; --mail-selected-border: #365a95;
    --mail-unread: #f5f7fa; --mail-accent: #5b9cff; --mail-accent-hover: #7ab0ff; --mail-accent-soft: #1e2f4d;
    --mail-danger: #f97066; --mail-danger-soft: #3b1d1a; --mail-warning: #f7b955; --mail-warning-soft: #3a2c12;
    --mail-success: #47cd89; --mail-success-soft: #14321f; --mail-star: #f5b301; --mail-focus: #5b9cff;
    --mail-shadow: 0 1px 2px rgba(0,0,0,.4), 0 6px 20px rgba(0,0,0,.45); --mail-shadow-lg: 0 12px 40px rgba(0,0,0,.6);
    --mail-scrollbar: #3a404a; --mail-reader-bg: #ffffff;
}
:root[data-color-scheme="dark"][data-opt-accent="graphite"] { --mail-accent: #a3adc2; --mail-accent-hover: #c0c8d8; --mail-accent-soft: #2a2f3a; --mail-selected: #2b303a; --mail-selected-border: #4a5264; }
:root[data-color-scheme="dark"][data-opt-accent="green"] { --mail-accent: #4ccb7f; --mail-accent-hover: #6fdc99; --mail-accent-soft: #163524; --mail-selected: #1b3a2a; --mail-selected-border: #2d6a45; }
:root[data-color-scheme="dark"][data-opt-accent="orange"] { --mail-accent: #ff9a4d; --mail-accent-hover: #ffb073; --mail-accent-soft: #3d2413; --mail-selected: #40271a; --mail-selected-border: #7a4a2a; }

/* density */
:root[data-density="compact"] { --row-h: 44px; --row-pad-y: 5px; --sidebar-item-h: 24px; --list-font: 12.5px; --pad: 8px; }

/* -------------------------------------------------------------- base */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0; font-family: var(--mail-font); font-size: 13px; line-height: 1.45; color: var(--mail-text);
    background: var(--mail-bg); -webkit-font-smoothing: antialiased; overflow: hidden;
}
a { color: var(--mail-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--mail-focus); outline-offset: 1px; }
::selection { background: var(--mail-selected); }
* { scrollbar-width: thin; scrollbar-color: var(--mail-scrollbar) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--mail-scrollbar); border-radius: 8px; border: 2px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-track { background: transparent; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

.icon { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; vertical-align: -3px; }
.icon--sm { width: 14px; height: 14px; }
.icon--lg { width: 20px; height: 20px; }
.icon--xs { width: 12px; height: 12px; }

/* -------------------------------------------------------------- buttons & inputs */
.btn {
    display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px; border: 1px solid var(--mail-border-strong);
    border-radius: var(--mail-radius); background: var(--mail-surface); color: var(--mail-text); font-size: 12.5px; font-weight: 500;
    white-space: nowrap; transition: background var(--mail-transition), border-color var(--mail-transition);
}
.btn:hover { background: var(--mail-hover); text-decoration: none; }
.btn:disabled { opacity: .5; cursor: default; }
.btn--primary { background: var(--mail-accent); border-color: var(--mail-accent); color: var(--mail-accent-text); }
.btn--primary:hover { background: var(--mail-accent-hover); border-color: var(--mail-accent-hover); }
.btn--danger { color: var(--mail-danger); }
.btn--danger:hover { background: var(--mail-danger-soft); border-color: var(--mail-danger); }
.btn--ghost { border-color: transparent; background: transparent; }
.btn--ghost:hover { background: var(--mail-hover); }
.btn--sm { height: 24px; padding: 0 8px; font-size: 12px; }
.btn--lg { height: 34px; padding: 0 14px; font-size: 13px; }
.btn--block { width: 100%; justify-content: center; }
.iconbtn {
    display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border: 0; border-radius: var(--mail-radius);
    background: transparent; color: var(--mail-muted); transition: background var(--mail-transition), color var(--mail-transition);
}
.iconbtn:hover { background: var(--mail-hover); color: var(--mail-text); }
.iconbtn.is-active { color: var(--mail-accent); background: var(--mail-accent-soft); }
.iconbtn--sm { width: 24px; height: 24px; }
.iconbtn:disabled { opacity: .4; pointer-events: none; }

.input, .select, .textarea {
    width: 100%; height: 30px; padding: 0 9px; border: 1px solid var(--mail-border-strong); border-radius: var(--mail-radius);
    background: var(--mail-surface); color: var(--mail-text); font-size: 13px; transition: border-color var(--mail-transition), box-shadow var(--mail-transition);
}
.textarea { height: auto; min-height: 80px; padding: 7px 9px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { border-color: var(--mail-accent); box-shadow: 0 0 0 3px var(--mail-accent-soft); outline: none; }
.input::placeholder { color: var(--mail-muted-2); }
.select { appearance: none; padding-right: 26px; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23667085' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>"); background-repeat: no-repeat; background-position: right 8px center; }
.checkbox { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.checkbox input { width: 14px; height: 14px; margin: 0; accent-color: var(--mail-accent); }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.field > label { font-size: 12px; font-weight: 600; color: var(--mail-muted); }
.field .hint { font-size: 11.5px; color: var(--mail-muted-2); }
.field .error { font-size: 11.5px; color: var(--mail-danger); }
.field-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.badge { display: inline-flex; align-items: center; height: 18px; padding: 0 6px; border-radius: 9px; font-size: 11px; font-weight: 600; background: var(--mail-surface-3); color: var(--mail-muted); }
.badge--accent { background: var(--mail-accent-soft); color: var(--mail-accent); }
.badge--danger { background: var(--mail-danger-soft); color: var(--mail-danger); }
.badge--success { background: var(--mail-success-soft); color: var(--mail-success); }
.badge--warning { background: var(--mail-warning-soft); color: var(--mail-warning); }
.kbd { display: inline-block; min-width: 18px; padding: 1px 5px; border: 1px solid var(--mail-border-strong); border-bottom-width: 2px; border-radius: 3px; font-family: var(--mail-font-mono); font-size: 11px; background: var(--mail-surface-2); text-align: center; }
.divider { height: 1px; background: var(--mail-border); margin: 6px 0; }
.spinner { width: 16px; height: 16px; border: 2px solid var(--mail-border-strong); border-top-color: var(--mail-accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.muted { color: var(--mail-muted); }
.small { font-size: 12px; }

/* -------------------------------------------------------------- app frame */
.app { display: grid; grid-template-rows: var(--topbar-h) 1fr; height: 100vh; height: 100dvh; }
.topbar {
    display: flex; align-items: center; gap: 6px; padding: 0 8px; background: var(--mail-surface); border-bottom: 1px solid var(--mail-border);
}
.topbar__brand { display: flex; align-items: center; gap: 8px; width: calc(var(--sidebar-w) - 8px); min-width: 0; padding-left: 4px; font-weight: 600; color: var(--mail-text-strong); }
.topbar__brand .logo { width: 22px; height: 22px; border-radius: 5px; background: var(--mail-accent); color: #fff; display: inline-flex; align-items: center; justify-content: center; }
.topbar__brand .logo .icon { width: 14px; height: 14px; stroke-width: 2.2; }
.topbar__search { flex: 1; display: flex; justify-content: center; min-width: 0; }
.search {
    position: relative; width: min(560px, 100%);
}
.search__input { width: 100%; height: 30px; padding: 0 30px 0 30px; border: 1px solid var(--mail-border); border-radius: var(--mail-radius-lg); background: var(--mail-surface-2); color: var(--mail-text); font-size: 13px; }
.search__input:focus { background: var(--mail-surface); border-color: var(--mail-accent); box-shadow: 0 0 0 3px var(--mail-accent-soft); }
.search__icon { position: absolute; left: 9px; top: 7px; color: var(--mail-muted); pointer-events: none; }
.search__clear { position: absolute; right: 28px; top: 3px; }
.search__adv { position: absolute; right: 2px; top: 3px; }
.search__panel {
    position: absolute; top: 34px; left: 0; right: 0; z-index: 40; padding: 12px; background: var(--mail-surface); border: 1px solid var(--mail-border);
    border-radius: var(--mail-radius-lg); box-shadow: var(--mail-shadow);
}
.search__panel .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
.search__panel .actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 10px; }
.topbar__actions { display: flex; align-items: center; gap: 2px; }
.avatar {
    display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; font-size: 11px; font-weight: 600;
    color: #fff; background: hsl(var(--h, 210) 40% 45%); flex-shrink: 0; letter-spacing: .02em;
}
.avatar--lg { width: 36px; height: 36px; font-size: 13px; }
.avatar--sm { width: 22px; height: 22px; font-size: 9.5px; }

.main { display: grid; grid-template-columns: var(--sidebar-w) var(--list-w) minmax(0, 1fr); min-height: 0; position: relative; }
.main.is-resizing { user-select: none; cursor: col-resize; }
.app[data-reading-pane="bottom"] .main { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); }
.app[data-reading-pane="bottom"] .pane-list { grid-row: 1; }
.app[data-reading-pane="bottom"] .pane-reader { grid-column: 2; grid-row: 1; }
.app[data-reading-pane="bottom"] .main { grid-template-rows: minmax(0, 45%) minmax(0, 1fr); }
.app[data-reading-pane="bottom"] .pane-list { grid-column: 2; grid-row: 1; border-bottom: 1px solid var(--mail-border); }
.app[data-reading-pane="bottom"] .pane-reader { grid-column: 2; grid-row: 2; }
.app[data-reading-pane="bottom"] .resizer--list { display: none; }
.app[data-reading-pane="off"] .main { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
.app[data-reading-pane="off"] .pane-reader { display: none; }
.app[data-reading-pane="off"] .resizer--list { display: none; }
.app[data-reading-pane="off"].is-reading .pane-list { display: none; }
.app[data-reading-pane="off"].is-reading .pane-reader { display: flex; }
.app.is-settings .pane-list, .app.is-settings .pane-reader, .app.is-settings .resizer { display: none; }
.app.is-settings .main { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }

.pane { min-height: 0; min-width: 0; display: flex; flex-direction: column; background: var(--mail-surface); position: relative; }
.pane-sidebar { background: var(--mail-surface-2); border-right: 1px solid var(--mail-border); }
.pane-list { border-right: 1px solid var(--mail-border); }
.pane-reader { background: var(--mail-surface); }
.sidebar-backdrop { display: none; }
.resizer { position: absolute; top: 0; bottom: 0; width: 7px; margin-left: -4px; cursor: col-resize; z-index: 5; }
.resizer:hover, .resizer.is-active { background: var(--mail-accent-soft); }
.resizer--sidebar { left: var(--sidebar-w); }
.resizer--list { left: calc(var(--sidebar-w) + var(--list-w)); }

/* -------------------------------------------------------------- sidebar */
.sidebar { display: flex; flex-direction: column; min-height: 0; }
.sidebar__top { padding: 10px 10px 6px; }
.sidebar__nav { flex: 1; overflow-y: auto; padding: 0 6px 12px; }
.compose-btn { width: 100%; height: 32px; justify-content: center; gap: 8px; font-weight: 600; }
.nav-item {
    display: flex; align-items: center; gap: 8px; height: var(--sidebar-item-h); padding: 0 8px 0 var(--indent, 8px); border-radius: var(--mail-radius);
    color: var(--mail-text); cursor: pointer; user-select: none; position: relative; min-width: 0; transition: background var(--mail-transition);
}
.nav-item:hover { background: var(--mail-hover); text-decoration: none; }
.nav-item.is-active { background: var(--mail-selected); color: var(--mail-text-strong); font-weight: 600; }
.nav-item.is-active .icon { color: var(--mail-accent); }
.nav-item.is-drop-target { outline: 2px dashed var(--mail-accent); outline-offset: -2px; background: var(--mail-accent-soft); }
.nav-item .icon { color: var(--mail-muted); }
.nav-item__label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-item__count { font-size: 11px; font-weight: 600; color: var(--mail-muted); font-variant-numeric: tabular-nums; }
.nav-item.has-unread .nav-item__label { font-weight: 600; }
.nav-item.has-unread .nav-item__count { color: var(--mail-accent); }
.nav-item__toggle { width: 16px; height: 16px; display: inline-flex; align-items: center; justify-content: center; margin-left: -4px; color: var(--mail-muted-2); border-radius: 3px; }
.nav-item__toggle:hover { background: var(--mail-surface-3); color: var(--mail-text); }
.nav-item__toggle .icon { width: 12px; height: 12px; transition: transform var(--mail-transition); }
.nav-item__toggle.is-open .icon { transform: rotate(90deg); }
.nav-account {
    display: flex; align-items: center; gap: 6px; height: 30px; margin-top: 10px; padding: 0 8px; font-size: 11.5px; font-weight: 600; letter-spacing: .02em;
    color: var(--mail-muted); cursor: pointer; border-radius: var(--mail-radius); user-select: none; min-width: 0;
}
.nav-account:hover { background: var(--mail-hover); color: var(--mail-text); }
.nav-account__dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.nav-account__label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-transform: none; }
.nav-account__status { color: var(--mail-danger); display: inline-flex; }
.nav-account .nav-item__toggle { margin-left: 0; }
.nav-account__count { font-size: 11px; color: var(--mail-accent); font-variant-numeric: tabular-nums; }
.nav-group { margin-top: 2px; }
.nav-group.is-collapsed .nav-folders { display: none; }
.sidebar__foot { padding: 8px 10px; border-top: 1px solid var(--mail-border); font-size: 11.5px; color: var(--mail-muted); display: flex; align-items: center; gap: 6px; }
.sidebar__foot .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--mail-success); }
.sidebar__foot.is-offline .dot { background: var(--mail-danger); }

/* -------------------------------------------------------------- message list */
.list { display: flex; flex-direction: column; min-height: 0; flex: 1; }
.list__header {
    display: flex; align-items: center; gap: 4px; height: 40px; padding: 0 8px 0 var(--pad); border-bottom: 1px solid var(--mail-border); flex-shrink: 0;
}
.list__title { flex: 1; min-width: 0; display: flex; align-items: baseline; gap: 8px; }
.list__title h2 { margin: 0; font-size: 14px; font-weight: 600; color: var(--mail-text-strong); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.list__title .count { font-size: 12px; color: var(--mail-muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.list__toolbar { display: flex; align-items: center; gap: 2px; }
.list__bulk { display: none; align-items: center; gap: 2px; padding: 0 var(--pad); height: 36px; border-bottom: 1px solid var(--mail-border); background: var(--mail-accent-soft); font-size: 12px; flex-shrink: 0; }
.list__bulk.is-visible { display: flex; }
.list__bulk .label { margin-right: auto; font-weight: 600; }
.list__filters { display: flex; gap: 2px; padding: 4px var(--pad); border-bottom: 1px solid var(--mail-border); flex-shrink: 0; }
.chip { height: 22px; padding: 0 9px; border: 1px solid transparent; border-radius: 11px; background: transparent; color: var(--mail-muted); font-size: 12px; font-weight: 500; }
.chip:hover { background: var(--mail-hover); color: var(--mail-text); }
.chip.is-active { background: var(--mail-surface-3); color: var(--mail-text-strong); }
.list__body { flex: 1; overflow-y: auto; overscroll-behavior: contain; }
.list__body:focus-visible { outline: none; box-shadow: inset 0 0 0 2px var(--mail-focus); }
.list__more { display: flex; justify-content: center; padding: 10px; color: var(--mail-muted); font-size: 12px; }
.list__empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; height: 100%; color: var(--mail-muted); text-align: center; padding: 24px; }
.list__empty strong { color: var(--mail-text); font-weight: 600; }
.list__empty .icon { width: 28px; height: 28px; color: var(--mail-muted-2); margin-bottom: 6px; stroke-width: 1.4; }

.row {
    display: grid; grid-template-columns: 24px 1fr auto; grid-template-rows: auto auto auto; column-gap: 8px; align-items: start;
    min-height: var(--row-h); padding: var(--row-pad-y) var(--row-pad-x) var(--row-pad-y) 6px; border-bottom: 1px solid var(--mail-border);
    font-size: var(--list-font); cursor: default; position: relative; user-select: none; transition: background var(--mail-transition);
}
.row:hover { background: var(--mail-hover); }
.row.is-selected { background: var(--mail-selected); box-shadow: inset 3px 0 0 var(--mail-accent); }
.row.is-open:not(.is-selected) { background: var(--mail-surface-2); box-shadow: inset 3px 0 0 var(--mail-border-strong); }
.row.is-focused { outline: 2px solid var(--mail-focus); outline-offset: -2px; }
.row.is-dragging { opacity: .5; }
.row.is-hidden-out { animation: rowout .16s ease forwards; }
@keyframes rowout { to { opacity: 0; transform: translateX(-12px); } }
.row__gutter { grid-row: 1 / span 3; display: flex; flex-direction: column; align-items: center; gap: 4px; padding-top: 2px; }
.row__check { width: 14px; height: 14px; margin: 0; accent-color: var(--mail-accent); opacity: 0; transition: opacity var(--mail-transition); }
.row:hover .row__check, .row.is-selected .row__check, .list.has-selection .row__check { opacity: 1; }
.row__unread { width: 7px; height: 7px; border-radius: 50%; background: var(--mail-accent); margin-top: 3px; opacity: 0; }
.row.is-unread .row__unread { opacity: 1; }
.row__avatar { grid-row: 1 / span 3; }
.row--avatars { grid-template-columns: 24px 30px 1fr auto; }
.row--avatars .row__avatar { grid-column: 2; }
.row--avatars .row__sender, .row--avatars .row__subject, .row--avatars .row__preview { grid-column: 3; }
.row--avatars .row__meta, .row--avatars .row__flags { grid-column: 4; }
.row__sender { grid-column: 2; grid-row: 1; display: flex; align-items: center; gap: 6px; min-width: 0; color: var(--mail-text); }
.row__sender-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row.is-unread .row__sender-name { font-weight: 700; color: var(--mail-unread); }
.row__account { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.row__meta { grid-column: 3; grid-row: 1; display: flex; align-items: center; gap: 4px; font-size: 11.5px; color: var(--mail-muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.row.is-unread .row__meta { color: var(--mail-text); font-weight: 600; }
.row__subject { grid-column: 2; grid-row: 2; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--mail-text); }
.row.is-unread .row__subject { font-weight: 600; color: var(--mail-unread); }
.row__flags { grid-column: 3; grid-row: 2 / span 2; display: flex; align-items: center; gap: 2px; justify-content: flex-end; color: var(--mail-muted-2); }
.row__preview { grid-column: 2; grid-row: 3; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--mail-muted); font-size: calc(var(--list-font) - .5px); }
.row__star { border: 0; background: transparent; padding: 2px; color: var(--mail-muted-2); display: inline-flex; border-radius: 3px; opacity: 0; transition: opacity var(--mail-transition); }
.row:hover .row__star, .row__star.is-on { opacity: 1; }
.row__star.is-on { color: var(--mail-star); }
.row__star.is-on .icon { fill: var(--mail-star); }
.row__star:hover { background: var(--mail-surface-3); }
.row__att { color: var(--mail-muted); }
.row__prio { color: var(--mail-danger); }
.row__answered { color: var(--mail-muted-2); }
.row__count { font-size: 10.5px; padding: 0 5px; border: 1px solid var(--mail-border-strong); border-radius: 8px; color: var(--mail-muted); }
:root[data-density="compact"] .row { grid-template-rows: auto auto; }
:root[data-density="compact"] .row__preview { display: none; }
:root[data-density="compact"] .row__subject { display: flex; gap: 6px; }
:root[data-density="compact"] .row__subject > span:first-child { flex: 0 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
:root[data-density="compact"] .row__subject .row__subject-preview { display: inline; color: var(--mail-muted); font-weight: 400; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
:root[data-density="compact"] .row__flags { grid-row: 2; }
:root[data-density="compact"] .row__avatar { display: none; }
:root[data-density="compact"] .row--avatars { grid-template-columns: 24px 1fr auto; }
:root[data-density="compact"] .row--avatars .row__sender, :root[data-density="compact"] .row--avatars .row__subject { grid-column: 2; }
:root[data-density="compact"] .row--avatars .row__meta, :root[data-density="compact"] .row--avatars .row__flags { grid-column: 3; }
.row__subject-preview { display: none; }

.skeleton { padding: 0; }
.skeleton .row { pointer-events: none; }
.sk { display: block; height: 10px; border-radius: 4px; background: linear-gradient(90deg, var(--mail-surface-3) 25%, var(--mail-hover) 50%, var(--mail-surface-3) 75%); background-size: 200% 100%; animation: shimmer 1.2s infinite; }
@keyframes shimmer { to { background-position: -200% 0; } }
.date-sep { position: sticky; top: 0; z-index: 2; padding: 3px var(--pad); font-size: 11px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase; color: var(--mail-muted); background: var(--mail-surface-2); border-bottom: 1px solid var(--mail-border); }

/* -------------------------------------------------------------- reader */
.reader { display: flex; flex-direction: column; min-height: 0; flex: 1; }
.reader__empty { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--mail-muted); gap: 6px; }
.reader__empty .icon { width: 36px; height: 36px; stroke-width: 1.2; color: var(--mail-muted-2); }
.reader__head { padding: 14px 20px 10px; border-bottom: 1px solid var(--mail-border); flex-shrink: 0; }
.reader__subject { margin: 0 0 10px; font-size: 17px; font-weight: 600; line-height: 1.3; color: var(--mail-text-strong); word-break: break-word; display: flex; align-items: flex-start; gap: 10px; }
.reader__subject .badge { margin-top: 3px; }
.reader__meta { display: flex; align-items: flex-start; gap: 12px; }
.reader__from { flex: 1; min-width: 0; display: flex; gap: 10px; align-items: flex-start; }
.reader__who { min-width: 0; line-height: 1.35; }
.reader__who .name { font-weight: 600; color: var(--mail-text-strong); }
.reader__who .email { color: var(--mail-muted); }
.reader__who .to { color: var(--mail-muted); font-size: 12px; margin-top: 1px; }
.reader__who .to button { border: 0; background: none; padding: 0; color: var(--mail-accent); font-size: 12px; }
.reader__details { margin-top: 6px; display: grid; grid-template-columns: max-content 1fr; gap: 2px 10px; font-size: 12px; color: var(--mail-muted); }
.reader__details dt { font-weight: 600; }
.reader__details dd { margin: 0; color: var(--mail-text); word-break: break-word; }
.reader__date { font-size: 12px; color: var(--mail-muted); white-space: nowrap; padding-top: 2px; }
.reader__actions { display: flex; align-items: center; gap: 2px; margin-top: 8px; margin-left: -6px; flex-wrap: wrap; }
.reader__actions .btn { border-color: transparent; }
.reader__actions .btn:hover { border-color: var(--mail-border-strong); }
.reader__banner { display: flex; align-items: center; gap: 8px; padding: 6px 20px; font-size: 12px; background: var(--mail-warning-soft); color: var(--mail-warning); border-bottom: 1px solid var(--mail-border); flex-shrink: 0; }
.reader__banner .btn { height: 22px; }
.reader__banner--info { background: var(--mail-accent-soft); color: var(--mail-accent); }
.reader__body { flex: 1; overflow: auto; background: var(--mail-surface); }
.reader__frame { display: block; width: 100%; border: 0; background: var(--mail-reader-bg); min-height: 120px; }
.reader__thread { border-bottom: 1px solid var(--mail-border); background: var(--mail-surface-2); font-size: 12px; }
.reader__thread summary { padding: 6px 20px; cursor: pointer; color: var(--mail-muted); font-weight: 600; list-style: none; display: flex; align-items: center; gap: 6px; }
.reader__thread summary::-webkit-details-marker { display: none; }
.reader__thread .thread-item { display: flex; gap: 10px; padding: 5px 20px; cursor: pointer; border-top: 1px solid var(--mail-border); }
.reader__thread .thread-item:hover { background: var(--mail-hover); }
.reader__thread .thread-item.is-current { background: var(--mail-selected); }
.reader__thread .thread-item .who { width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.reader__thread .thread-item .what { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--mail-muted); }
.reader__thread .thread-item .when { color: var(--mail-muted); white-space: nowrap; }
.attachments { padding: 12px 20px 16px; border-top: 1px solid var(--mail-border); flex-shrink: 0; }
.attachments__title { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; color: var(--mail-muted); margin-bottom: 8px; }
.attachments__title a { margin-left: auto; font-weight: 500; }
.attachments__list { display: flex; flex-wrap: wrap; gap: 6px; }
.att {
    display: inline-flex; align-items: center; gap: 8px; max-width: 320px; height: 34px; padding: 0 10px 0 8px; border: 1px solid var(--mail-border); border-radius: var(--mail-radius);
    background: var(--mail-surface-2); color: var(--mail-text); font-size: 12px; text-decoration: none;
}
.att:hover { background: var(--mail-hover); border-color: var(--mail-border-strong); text-decoration: none; }
.att .icon { color: var(--mail-muted); }
.att__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.att__size { color: var(--mail-muted); white-space: nowrap; }
.reader__source { flex: 1; overflow: auto; margin: 0; padding: 16px 20px; font-family: var(--mail-font-mono); font-size: 12px; white-space: pre-wrap; word-break: break-all; }

/* -------------------------------------------------------------- menus / dialogs / toasts */
.menu {
    position: fixed; z-index: 100; min-width: 180px; padding: 4px; background: var(--mail-surface); border: 1px solid var(--mail-border);
    border-radius: var(--mail-radius-lg); box-shadow: var(--mail-shadow); font-size: 12.5px;
}
.menu__item { display: flex; align-items: center; gap: 8px; width: 100%; height: 28px; padding: 0 8px; border: 0; border-radius: var(--mail-radius); background: transparent; color: var(--mail-text); text-align: left; white-space: nowrap; }
.menu__item:hover, .menu__item:focus-visible { background: var(--mail-hover); outline: none; }
.menu__item .icon { color: var(--mail-muted); }
.menu__item.is-danger { color: var(--mail-danger); }
.menu__item.is-danger .icon { color: var(--mail-danger); }
.menu__item.is-disabled { opacity: .45; pointer-events: none; }
.menu__item .kbd { margin-left: auto; opacity: .7; }
.menu__item .submenu-arrow { margin-left: auto; color: var(--mail-muted-2); }
.menu__sep { height: 1px; margin: 4px 6px; background: var(--mail-border); }
.menu__label { padding: 4px 8px 2px; font-size: 11px; font-weight: 600; color: var(--mail-muted); text-transform: uppercase; letter-spacing: .03em; }
.menu__search { margin: 2px 4px 6px; }
.menu--scroll { max-height: 340px; overflow-y: auto; }

.backdrop { position: fixed; inset: 0; z-index: 90; background: rgba(12, 15, 19, .35); display: flex; align-items: center; justify-content: center; padding: 20px; }
.dialog { width: 100%; max-width: 480px; max-height: calc(100vh - 40px); display: flex; flex-direction: column; background: var(--mail-surface); border: 1px solid var(--mail-border); border-radius: var(--mail-radius-lg); box-shadow: var(--mail-shadow-lg); }
.dialog--wide { max-width: 720px; }
.dialog--xl { max-width: 960px; }
.dialog__head { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--mail-border); }
.dialog__head h3 { margin: 0; font-size: 14px; font-weight: 600; flex: 1; }
.dialog__body { padding: 16px; overflow-y: auto; }
.dialog__foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--mail-border); }
.dialog__foot .left { margin-right: auto; }

.toasts { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 120; display: flex; flex-direction: column; gap: 6px; align-items: center; pointer-events: none; }
.toast { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: var(--mail-radius-lg); background: var(--mail-text-strong); color: var(--mail-surface); font-size: 12.5px; box-shadow: var(--mail-shadow); pointer-events: auto; animation: toastin .16s ease; max-width: 480px; }
.toast--error { background: var(--mail-danger); color: #fff; }
.toast .btn { height: 22px; border-color: rgba(255,255,255,.3); background: transparent; color: inherit; }
@keyframes toastin { from { opacity: 0; transform: translateY(6px); } }

/* -------------------------------------------------------------- compose */
.compose {
    position: fixed; right: 16px; bottom: 0; z-index: 80; width: min(640px, calc(100vw - 32px)); height: min(600px, calc(100vh - 60px));
    display: flex; flex-direction: column; background: var(--mail-surface); border: 1px solid var(--mail-border); border-bottom: 0;
    border-radius: var(--mail-radius-lg) var(--mail-radius-lg) 0 0; box-shadow: var(--mail-shadow-lg);
}
.compose.is-minimized { height: 38px; overflow: hidden; }
.compose.is-expanded { left: 50%; right: auto; bottom: auto; top: 50%; transform: translate(-50%, -50%); width: min(960px, calc(100vw - 40px)); height: min(760px, calc(100vh - 40px)); border-radius: var(--mail-radius-lg); border-bottom: 1px solid var(--mail-border); }
.compose.is-dragover::after { content: ""; position: absolute; inset: 0; border: 2px dashed var(--mail-accent); background: var(--mail-accent-soft); opacity: .8; pointer-events: none; border-radius: inherit; }
.compose__head { display: flex; align-items: center; gap: 4px; height: 38px; padding: 0 6px 0 12px; background: var(--mail-surface-2); border-bottom: 1px solid var(--mail-border); cursor: move; user-select: none; flex-shrink: 0; }
.compose__head .title { flex: 1; font-weight: 600; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.compose__head .status { font-size: 11.5px; color: var(--mail-muted); margin-right: 6px; }
.compose__fields { flex-shrink: 0; border-bottom: 1px solid var(--mail-border); }
.compose__row { display: flex; align-items: flex-start; gap: 8px; min-height: 32px; padding: 3px 12px; border-bottom: 1px solid var(--mail-border); }
.compose__row:last-child { border-bottom: 0; }
.compose__row > label { width: 44px; padding-top: 5px; font-size: 12px; color: var(--mail-muted); flex-shrink: 0; }
.compose__row .select { border: 0; background-color: transparent; height: 26px; padding-left: 0; }
.compose__row .plain { flex: 1; border: 0; background: transparent; height: 26px; padding: 0; }
.compose__row .plain:focus { box-shadow: none; }
.compose__row .extras { display: flex; gap: 2px; padding-top: 3px; }
.compose__row .extras button { border: 0; background: none; color: var(--mail-muted); font-size: 12px; padding: 2px 5px; border-radius: 3px; }
.compose__row .extras button:hover { background: var(--mail-hover); color: var(--mail-text); }
.tokens { flex: 1; display: flex; flex-wrap: wrap; gap: 4px; align-items: center; min-height: 26px; position: relative; }
.token { display: inline-flex; align-items: center; gap: 4px; height: 22px; padding: 0 4px 0 8px; border-radius: 11px; background: var(--mail-surface-3); font-size: 12px; max-width: 260px; }
.token.is-invalid { background: var(--mail-danger-soft); color: var(--mail-danger); }
.token span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.token button { border: 0; background: none; padding: 0; width: 16px; height: 16px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; color: inherit; opacity: .7; }
.token button:hover { opacity: 1; background: rgba(0,0,0,.08); }
.tokens__input { flex: 1; min-width: 120px; border: 0; background: transparent; height: 24px; padding: 0 2px; }
.tokens__input:focus { outline: none; }
.suggest { position: absolute; left: 0; top: 100%; z-index: 30; min-width: 280px; max-width: 100%; margin-top: 2px; background: var(--mail-surface); border: 1px solid var(--mail-border); border-radius: var(--mail-radius-lg); box-shadow: var(--mail-shadow); padding: 4px; }
.suggest__item { display: flex; align-items: center; gap: 8px; height: 32px; padding: 0 8px; border-radius: var(--mail-radius); cursor: pointer; font-size: 12.5px; }
.suggest__item.is-active, .suggest__item:hover { background: var(--mail-hover); }
.suggest__item .name { font-weight: 600; }
.suggest__item .email { color: var(--mail-muted); }
.compose__toolbar { display: flex; align-items: center; gap: 1px; padding: 3px 8px; border-bottom: 1px solid var(--mail-border); flex-shrink: 0; flex-wrap: wrap; }
.compose__toolbar .sep { width: 1px; height: 18px; background: var(--mail-border); margin: 0 4px; }
.compose__editor { flex: 1; overflow: auto; padding: 12px 14px; font-size: 13.5px; line-height: 1.5; outline: none; min-height: 120px; }
.compose__editor:empty::before { content: attr(data-placeholder); color: var(--mail-muted-2); }
.compose__editor blockquote { margin: 0 0 0 .8ex; border-left: 2px solid var(--mail-border-strong); padding-left: 1ex; color: var(--mail-muted); }
.compose__editor img { max-width: 100%; }
.compose__editor .smail-signature { color: var(--mail-muted); }
.compose__editor .smail-quote-header { color: var(--mail-muted); font-size: 12px; margin-top: 8px; }
.compose__editor a { color: var(--mail-accent); }
.compose__plain { flex: 1; border: 0; border-radius: 0; padding: 12px 14px; font-family: var(--mail-font-mono); font-size: 13px; resize: none; }
.compose__plain:focus { box-shadow: none; }
.compose__atts { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px; border-top: 1px solid var(--mail-border); flex-shrink: 0; }
.compose__atts:empty { display: none; }
.compose__atts .att { height: 30px; }
.compose__atts .att .progress { position: absolute; left: 0; bottom: 0; height: 2px; background: var(--mail-accent); }
.compose__atts .att { position: relative; overflow: hidden; }
.compose__foot { display: flex; align-items: center; gap: 4px; padding: 8px 12px; border-top: 1px solid var(--mail-border); flex-shrink: 0; }
.compose__foot .btn--primary { min-width: 80px; justify-content: center; }
.compose__foot .spacer { flex: 1; }
.compose__foot .hint { font-size: 11.5px; color: var(--mail-muted-2); }

/* -------------------------------------------------------------- settings */
.settings { display: flex; flex: 1; min-height: 0; }
.settings__nav { width: 100%; padding: 8px 6px; }
.settings__nav .nav-item { height: 30px; }
.settings__content { flex: 1; overflow-y: auto; padding: 24px 32px 48px; max-width: 900px; }
.settings__section h2 { margin: 0 0 4px; font-size: 18px; font-weight: 600; color: var(--mail-text-strong); }
.settings__section > p.lead { margin: 0 0 20px; color: var(--mail-muted); }
.settings__group { margin-bottom: 28px; }
.settings__group h3 { margin: 0 0 10px; padding-bottom: 6px; border-bottom: 1px solid var(--mail-border); font-size: 13px; font-weight: 600; color: var(--mail-text-strong); }
.setting { display: flex; align-items: center; gap: 16px; padding: 8px 0; }
.setting + .setting { border-top: 1px solid var(--mail-border); }
.setting__text { flex: 1; min-width: 0; }
.setting__text .label { font-weight: 500; }
.setting__text .desc { font-size: 12px; color: var(--mail-muted); }
.setting__control { flex-shrink: 0; min-width: 160px; display: flex; justify-content: flex-end; }
.setting__control .select, .setting__control .input { width: 220px; }
.switch { position: relative; width: 34px; height: 20px; flex-shrink: 0; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch__track { position: absolute; inset: 0; border-radius: 10px; background: var(--mail-border-strong); transition: background var(--mail-transition); cursor: pointer; }
.switch__track::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform var(--mail-transition); box-shadow: 0 1px 2px rgba(0,0,0,.2); }
.switch input:checked + .switch__track { background: var(--mail-accent); }
.switch input:checked + .switch__track::after { transform: translateX(14px); }
.switch input:focus-visible + .switch__track { outline: 2px solid var(--mail-focus); outline-offset: 2px; }
.table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.table th { text-align: left; font-weight: 600; color: var(--mail-muted); padding: 6px 8px; border-bottom: 1px solid var(--mail-border); font-size: 11.5px; text-transform: uppercase; letter-spacing: .03em; }
.table td { padding: 8px; border-bottom: 1px solid var(--mail-border); vertical-align: middle; }
.table tr:hover td { background: var(--mail-hover); }
.table .actions { text-align: right; white-space: nowrap; }
.account-item { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--mail-border); }
.account-item__dot { width: 10px; height: 10px; border-radius: 50%; }
.account-item__text { flex: 1; min-width: 0; }
.account-item__text .email { font-weight: 600; }
.account-item__text .meta { font-size: 12px; color: var(--mail-muted); }
.theme-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.theme-card { border: 1px solid var(--mail-border); border-radius: var(--mail-radius-lg); overflow: hidden; background: var(--mail-surface); }
.theme-card.is-active { border-color: var(--mail-accent); box-shadow: 0 0 0 2px var(--mail-accent-soft); }
.theme-card__preview { aspect-ratio: 16 / 10; background: var(--mail-surface-3); display: flex; align-items: center; justify-content: center; color: var(--mail-muted-2); overflow: hidden; }
.theme-card__preview img { width: 100%; height: 100%; object-fit: cover; }
.theme-card__body { padding: 10px 12px; display: flex; align-items: center; gap: 8px; }
.theme-card__body .name { font-weight: 600; }
.theme-card__body .ver { font-size: 11.5px; color: var(--mail-muted); }
.theme-card__body .btn { margin-left: auto; }
.radio-cards { display: flex; gap: 8px; flex-wrap: wrap; }
.radio-card { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 12px; border: 1px solid var(--mail-border-strong); border-radius: var(--mail-radius); cursor: pointer; font-weight: 500; }
.radio-card input { display: none; }
.radio-card:has(input:checked) { border-color: var(--mail-accent); background: var(--mail-accent-soft); color: var(--mail-accent); }
.rule-block { border: 1px solid var(--mail-border); border-radius: var(--mail-radius-lg); padding: 12px; margin-bottom: 10px; }
.rule-line { display: grid; grid-template-columns: 1.1fr 1.1fr 2fr 28px; gap: 8px; align-items: center; margin-bottom: 8px; }
.rule-block h4 { margin: 0 0 8px; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--mail-muted); }
.wizard-steps { display: flex; gap: 8px; margin-bottom: 16px; font-size: 12px; color: var(--mail-muted); }
.wizard-steps .step.is-active { color: var(--mail-accent); font-weight: 600; }
.notice { padding: 8px 10px; border-radius: var(--mail-radius); font-size: 12.5px; margin-bottom: 12px; }
.notice--error { background: var(--mail-danger-soft); color: var(--mail-danger); }
.notice--success { background: var(--mail-success-soft); color: var(--mail-success); }
.notice--info { background: var(--mail-accent-soft); color: var(--mail-accent); }
.notice--warning { background: var(--mail-warning-soft); color: var(--mail-warning); }
.shortcuts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 24px; font-size: 12.5px; }
.shortcuts-grid div { display: flex; justify-content: space-between; padding: 3px 0; border-bottom: 1px solid var(--mail-border); }
.sig-editor { min-height: 140px; border: 1px solid var(--mail-border-strong); border-radius: var(--mail-radius); padding: 8px 10px; }
.sig-editor:focus { border-color: var(--mail-accent); box-shadow: 0 0 0 3px var(--mail-accent-soft); }

/* -------------------------------------------------------------- auth pages */
.auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; background: var(--mail-bg); }
.auth__card { width: 100%; max-width: 360px; background: var(--mail-surface); border: 1px solid var(--mail-border); border-radius: var(--mail-radius-lg); padding: 28px 28px 24px; box-shadow: var(--mail-shadow); }
.auth__brand { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; font-size: 16px; font-weight: 600; }
.auth__brand .logo { width: 30px; height: 30px; border-radius: 7px; background: var(--mail-accent); color: #fff; display: inline-flex; align-items: center; justify-content: center; }
.auth__card h1 { margin: 0 0 16px; font-size: 15px; font-weight: 600; }
.auth__card .btn { margin-top: 4px; }
.auth__foot { margin-top: 14px; font-size: 12px; color: var(--mail-muted); text-align: center; }

body.page { overflow: auto; }

/* -------------------------------------------------------------- responsive */
.mobile-only { display: none !important; }
@media (max-width: 1100px) {
    .main { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
    .resizer--list { display: none; }
    .pane-reader { position: absolute; inset: 0; left: var(--sidebar-w); z-index: 20; display: none; }
    .app.is-reading .pane-reader { display: flex; }
    .app.is-reading .pane-list { display: flex; }
    .reader__back { display: inline-flex !important; }
    .app[data-reading-pane="bottom"] .main { grid-template-rows: minmax(0, 1fr); }
    .app[data-reading-pane="bottom"] .pane-reader { grid-column: auto; grid-row: auto; }
}
@media (max-width: 768px) {
    .mobile-only { display: inline-flex !important; }
    .topbar__brand { width: auto; }
    .topbar__brand .brand-name { display: none; }
    .main { grid-template-columns: minmax(0, 1fr); }
    .resizer { display: none; }
    .pane-sidebar { position: absolute; inset: 0; z-index: 30; width: min(300px, 85vw); box-shadow: var(--mail-shadow-lg); transform: translateX(-100%); transition: transform .18s ease; }
    .app.is-sidebar-open .pane-sidebar { transform: none; }
    .sidebar-backdrop { display: none; position: absolute; inset: 0; z-index: 25; background: rgba(0,0,0,.3); }
    .app.is-sidebar-open .sidebar-backdrop { display: block; }
    .pane-reader { left: 0; }
    .app.is-reading .pane-list { display: none; }
    .app.is-settings .main { grid-template-columns: minmax(0, 1fr); }
    .settings__content { padding: 16px; }
    .compose { right: 0; width: 100vw; height: 100vh; height: 100dvh; border-radius: 0; }
    .compose.is-expanded { left: 0; top: 0; transform: none; width: 100vw; height: 100vh; }
    .list__title h2 { font-size: 13.5px; }
    .setting { flex-direction: column; align-items: flex-start; gap: 8px; }
    .setting__control { min-width: 0; width: 100%; justify-content: flex-start; }
    .setting__control .select, .setting__control .input { width: 100%; }
    .rule-line { grid-template-columns: 1fr; }
    .shortcuts-grid { grid-template-columns: 1fr; }
}

/* -------------------------------------------------------------- print */
@media print {
    body { overflow: visible; background: #fff; }
    .topbar, .pane-sidebar, .pane-list, .resizer, .reader__actions, .compose, .toasts { display: none !important; }
    .main { display: block; }
    .pane-reader { position: static; display: flex !important; }
    .reader__body { overflow: visible; }
    .reader__frame { height: auto !important; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* -------------------------------------------------------------- reminders / calendar pages, invitations */
.app.is-page .pane-list, .app.is-page .pane-reader, .app.is-page .resizer { display: none; }
.app.is-page .main { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
.pane-page { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--mail-surface); }
.page__head { display: flex; align-items: center; gap: 6px; height: 48px; padding: 0 12px; border-bottom: 1px solid var(--mail-border); flex: none; }
.page__head h1 { margin: 0; font-size: 16px; font-weight: 600; color: var(--mail-text-strong); }
.page__body { flex: 1; min-height: 0; overflow-y: auto; padding: 8px 20px 32px; }
.page__section { margin: 16px 0 6px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--mail-muted); }
.md-invite { margin: 12px 20px 0; border: 1px solid var(--mail-border); border-radius: var(--mail-radius); padding: 12px 16px; background: var(--mail-surface-2); }
.md-invite__head { display: flex; align-items: flex-start; gap: 12px; }
.md-invite__head .icon { width: 22px; height: 22px; color: var(--mail-accent); flex: none; }
.md-invite__head strong { font-size: 15px; font-weight: 600; color: var(--mail-text-strong); }
.md-invite__when { color: var(--mail-muted); font-size: 13px; }
.md-invite__row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--mail-muted); margin-top: 6px; padding-left: 34px; }
.md-invite__actions { display: flex; align-items: center; gap: 8px; margin-top: 12px; padding-left: 34px; flex-wrap: wrap; }
.md-reminder { display: flex; align-items: center; gap: 14px; padding: 10px 4px; border-bottom: 1px solid var(--mail-border); cursor: pointer; border-radius: var(--mail-radius); }
.md-reminder:hover { background: var(--mail-hover); }
.md-reminder__icon { width: 34px; height: 34px; border-radius: 50%; background: var(--mail-accent-soft, var(--mail-selected)); color: var(--mail-accent); display: inline-flex; align-items: center; justify-content: center; flex: none; }
.md-reminder__text { flex: 1; min-width: 0; }
.md-reminder__text strong { font-weight: 600; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.md-reminder__when { font-size: 12px; color: var(--mail-muted); white-space: nowrap; }
.md-reminder__when.is-due { color: var(--mail-danger); font-weight: 600; }
.md-reminder__actions { display: flex; gap: 2px; }
.md-cal { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) 320px; }
.md-cal__month { display: flex; flex-direction: column; min-height: 0; border-right: 1px solid var(--mail-border); }
.md-cal__weekdays { display: grid; grid-template-columns: repeat(7, 1fr); padding: 8px 0 4px; font-size: 11px; font-weight: 600; text-transform: uppercase; color: var(--mail-muted); text-align: center; }
.md-cal__grid { flex: 1; min-height: 0; display: grid; grid-template-columns: repeat(7, 1fr); grid-auto-rows: 1fr; border-top: 1px solid var(--mail-border); border-left: 1px solid var(--mail-border); overflow-y: auto; }
.md-cal__cell { border-right: 1px solid var(--mail-border); border-bottom: 1px solid var(--mail-border); padding: 4px 6px; min-height: 84px; cursor: pointer; display: flex; flex-direction: column; gap: 2px; overflow: hidden; }
.md-cal__cell:hover { background: var(--mail-hover); }
.md-cal__cell.is-out { color: var(--mail-muted); background: var(--mail-surface-2); }
.md-cal__cell.is-selected { background: var(--mail-selected); }
.md-cal__day { font-size: 12px; font-weight: 600; width: 24px; height: 24px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; }
.md-cal__cell.is-today .md-cal__day { background: var(--mail-accent); color: var(--mail-accent-text); }
.md-cal__event { font-size: 11px; padding: 1px 6px; border-radius: 4px; background: var(--mail-accent); color: var(--mail-accent-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.md-cal__event.is-pending { background: transparent; border: 1px dashed var(--mail-accent); color: var(--mail-text); }
.md-cal__event.is-declined { opacity: .5; text-decoration: line-through; }
.md-cal__event.is-cancelled { background: var(--mail-surface-2); color: var(--mail-muted); text-decoration: line-through; }
.md-cal__right { display: flex; flex-direction: column; min-height: 0; }
.md-cal__agenda { padding: 16px 20px; overflow-y: auto; flex: 1; min-height: 0; }
.md-cal__side { padding: 12px 20px 16px; border-top: 1px solid var(--mail-border); flex: none; max-height: 40%; overflow-y: auto; }
.md-cal__side h3 { margin: 0 0 8px; font-size: 12px; font-weight: 600; color: var(--mail-muted); text-transform: uppercase; letter-spacing: .04em; }
.md-calrow { display: flex; align-items: center; gap: 4px; padding: 3px 0; }
.md-calrow__dot { width: 12px; height: 12px; border-radius: 3px; flex: none; }
.md-calrow__name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.md-cal__event { background: var(--ev, var(--mail-accent)); }
.md-cal__event.is-pending { border-color: var(--ev, var(--mail-accent)); }
.md-agenda { border-left: 3px solid var(--ev, var(--mail-accent)); padding-left: 10px; }
.md-cal__agenda h3 { margin: 0 0 12px; font-size: 15px; font-weight: 600; }
.md-agenda { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--mail-border); cursor: pointer; }
.md-agenda:hover { background: var(--mail-hover); }
.md-agenda__time { width: 96px; flex: none; font-size: 12px; color: var(--mail-muted); padding-top: 2px; }
.pane-page .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.dialog .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
@media (max-width: 900px) { .md-cal { grid-template-columns: 1fr; } .md-cal__month { border-right: 0; } .md-cal__cell { min-height: 56px; } .md-cal__event { display: none; } .app.is-page .main { grid-template-columns: minmax(0, 1fr); } .dialog .grid, .pane-page .grid { grid-template-columns: 1fr; } }

/* administrator logo */
.logo-img { height: 26px; width: auto; max-width: 160px; display: block; }

/* account switcher */
.nav-switch { display: flex; align-items: center; gap: 10px; width: calc(100% - 16px); margin: 4px 8px 8px; padding: 7px 10px; border: 1px solid var(--mail-border); border-radius: var(--mail-radius); background: var(--mail-surface, transparent); color: var(--mail-text); font: inherit; font-size: 13px; cursor: pointer; text-align: left; }
.nav-switch:hover { background: var(--mail-hover); }
.nav-switch > .icon { color: var(--mail-muted); flex-shrink: 0; }
.nav-switch__text { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.2; }
.nav-switch__label { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-switch__sub { font-size: 11px; color: var(--mail-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.menu__account { height: auto; padding: 6px 8px; cursor: pointer; }
.menu__account:hover { background: var(--mail-hover); }
.menu__account.is-active { font-weight: 600; }
.menu__account-text { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.25; }
.menu__account-sub { font-size: 11px; color: var(--mail-muted); font-weight: 400; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }