/* Navigatu Mail (web). Brand tokens from images/brand/logo-kit/USAGE.md: indigo #3A3FD8, sky #6EC1FF, ink #14172B, light sky #BFE4FF.
   Sizes are rem, so the browser's text size and Settings > Text size both scale the whole layout. */
:root {
  --bg: #F6F9FF; --surface: #FFFFFF; --surface-2: #EEF3FD; --ink: #14172B; --muted: #5A6082; --line: #DCE3F4;
  --brand: #3A3FD8; --on-brand: #FFFFFF; --accent: #3A3FD8; --sky: #6EC1FF; --wash: #EAF4FF; --light-sky: #BFE4FF;
  --hover: rgba(58, 63, 216, .07); --sel: #E3E8FF; --cursor: rgba(58, 63, 216, .35);
  --danger: #B3261E; --danger-wash: #FDECEA; --danger-line: #F0B8B3;
  --warn-wash: #FFF6DB; --warn-line: #E7D08A; --warn-ink: #5C4A0E;
  --info-wash: #EAF4FF; --info-line: #BFE4FF; --ok: #0A7A3A;
  --shadow-1: 0 1px 2px rgba(15, 29, 34, .06), 0 4px 12px rgba(15, 29, 34, .05);
  --shadow-2: 0 2px 6px rgba(15, 29, 34, .1), 0 18px 48px rgba(15, 29, 34, .18);
  --radius: 12px; --radius-s: 8px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, system-ui, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --side-w: 15rem; --list-w: clamp(20rem, 28vw, 27rem); --top-h: 3.5rem;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #14172B; --surface: #1C2040; --surface-2: #232850; --ink: #F2F5FF; --muted: #9BA3C8; --line: #2C335E;
    --accent: #6EC1FF; --wash: #1F2860; --hover: rgba(110, 193, 255, .09); --sel: #2A3170; --cursor: rgba(110, 193, 255, .55);
    --danger: #FF8A80; --danger-wash: #3A1E24; --danger-line: #7A3039; --warn-wash: #3A3217; --warn-line: #7A6224; --warn-ink: #F3E3A8;
    --info-wash: #1F2860; --info-line: #2C3A7A; --ok: #7DDC9B; --shadow-1: 0 1px 2px rgba(0,0,0,.4), 0 4px 12px rgba(0,0,0,.3); --shadow-2: 0 2px 6px rgba(0,0,0,.5), 0 18px 48px rgba(0,0,0,.55); color-scheme: dark; }
}
:root[data-theme="dark"] { --bg: #14172B; --surface: #1C2040; --surface-2: #232850; --ink: #F2F5FF; --muted: #9BA3C8; --line: #2C335E;
  --accent: #6EC1FF; --wash: #1F2860; --hover: rgba(110, 193, 255, .09); --sel: #2A3170; --cursor: rgba(110, 193, 255, .55);
  --danger: #FF8A80; --danger-wash: #3A1E24; --danger-line: #7A3039; --warn-wash: #3A3217; --warn-line: #7A6224; --warn-ink: #F3E3A8;
  --info-wash: #1F2860; --info-line: #2C3A7A; --ok: #7DDC9B; --shadow-1: 0 1px 2px rgba(0,0,0,.4), 0 4px 12px rgba(0,0,0,.3); --shadow-2: 0 2px 6px rgba(0,0,0,.5), 0 18px 48px rgba(0,0,0,.55); color-scheme: dark; }

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { height: 100%; -webkit-text-size-adjust: 100%; }
body { margin: 0; height: 100%; font: 0.9375rem/1.45 var(--font); background: var(--bg); color: var(--ink); overflow: hidden; }
h1, h2, h3 { line-height: 1.2; margin: 0; }
a { color: var(--accent); }
button { font: inherit; color: inherit; }
img { max-width: 100%; }
kbd { font: 0.8125rem var(--font-mono); background: var(--surface-2); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; padding: 0.05rem 0.4rem; white-space: nowrap; }
.muted { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.grow { flex: 1; }
.center { display: flex; justify-content: center; padding: 2rem; }
.center-text { text-align: center; }
.row-gap { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.row-gap.center { justify-content: center; }
.stack { display: flex; flex-direction: column; gap: 0.5rem; }
.note { background: var(--info-wash); border: 1px solid var(--info-line); border-radius: var(--radius-s); padding: 0.5rem 0.75rem; margin: 0.5rem; font-size: 0.875rem; }
.small-print { font-size: 0.8125rem; }
.boot-note { padding: 2rem; color: var(--muted); }
.icon { flex: none; vertical-align: middle; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--brand); color: var(--on-brand); padding: 0.5rem 1rem; z-index: 100; border-radius: 0 0 8px 0; }
.skip:focus { left: 0; }

/* ---- controls ---- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem; min-height: 2.25rem; padding: 0.4rem 0.9rem; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; text-decoration: none; font-weight: 500; white-space: nowrap; }
.btn:hover { background: var(--hover); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--on-brand); }
.btn.primary:hover { filter: brightness(1.1); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
:root[data-theme="dark"] .btn.danger { color: #14172B; }
.btn.small { min-height: 1.85rem; padding: 0.2rem 0.7rem; font-size: 0.8125rem; }
.btn.danger-text { color: var(--danger); }
.btn.wide-btn { width: 100%; }
.btn.more { margin: 0.75rem auto; display: flex; }
.btn:disabled, .icon-btn:disabled { opacity: .45; cursor: not-allowed; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 2.25rem; height: 2.25rem; border: 0; background: transparent; color: var(--muted); border-radius: 50%; cursor: pointer; flex: none; }
.icon-btn:hover { background: var(--hover); color: var(--ink); }
.icon-btn.small { width: 1.75rem; height: 1.75rem; }
.icon-btn.on { color: #E8A100; }
.link-btn { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0.25rem; font-size: 0.875rem; white-space: nowrap; }
.field { width: 100%; font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 0.55rem 0.7rem; min-height: 2.5rem; }
.field.small { width: auto; min-height: 2rem; padding: 0.25rem 0.5rem; }
.field:focus { outline: 2px solid var(--accent); outline-offset: 0; }
.label { font-size: 0.8125rem; color: var(--muted); font-weight: 600; }
.check, .radio { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; padding: 0.25rem 0; }
.check input, .radio input { width: 1.1rem; height: 1.1rem; accent-color: var(--brand); }
.form-error { color: var(--danger); margin: 0; font-size: 0.875rem; }
.chip { display: inline-flex; align-items: center; gap: 0.25rem; font-size: 0.75rem; font-weight: 600; padding: 0.1rem 0.5rem; border-radius: 999px; background: var(--surface-2); color: var(--muted); border: 1px solid var(--line); }
.chip.busy { background: var(--info-wash); border-color: var(--info-line); color: var(--accent); }
.chip.bad { background: var(--danger-wash); border-color: var(--danger-line); color: var(--danger); }
.chip.warn { background: var(--warn-wash); border-color: var(--warn-line); color: var(--warn-ink); }
.chip.draft { background: var(--warn-wash); border-color: var(--warn-line); color: var(--warn-ink); }
.spinner { display: inline-block; width: 1.4rem; height: 1.4rem; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } * { scroll-behavior: auto !important; } }
.avatar { display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; font-weight: 700; color: #fff; background: hsl(var(--hue) 50% 42%); flex: none; user-select: none; }
.empty { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.5rem; padding: 3rem 1.5rem; color: var(--muted); }
.empty h3 { color: var(--ink); font-size: 1.1rem; }
.empty p { margin: 0; max-width: 28rem; }
.callout { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.6rem 0.8rem; border-radius: var(--radius-s); background: var(--info-wash); border: 1px solid var(--info-line); }
.callout.bad { background: var(--danger-wash); border-color: var(--danger-line); }
.callout p { margin: 0 0 0.4rem; }
.callout .btn { margin-left: auto; }
.plain-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.35rem 1.25rem; margin: 0 0 0.75rem; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; overflow-wrap: anywhere; }
.skeleton-list { padding: 0.5rem; }
.skeleton-row { display: grid; gap: 0.4rem; padding: 0.8rem; border-bottom: 1px solid var(--line); }
.sk { display: block; height: 0.8rem; border-radius: 6px; background: linear-gradient(90deg, var(--surface-2), var(--line), var(--surface-2)); background-size: 200% 100%; animation: shimmer 1.4s infinite; }
.sk-a { width: 35%; } .sk-b { width: 70%; } .sk-c { width: 55%; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---- auth screens ---- */
.auth-wrap { min-height: 100%; height: 100%; overflow: auto; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; padding: 1.5rem 1rem; background: radial-gradient(60rem 30rem at 50% -10%, var(--light-sky), transparent), var(--bg); }
:root[data-theme="dark"] .auth-wrap { background: radial-gradient(60rem 30rem at 50% -10%, #1F2860, transparent), var(--bg); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .auth-wrap { background: radial-gradient(60rem 30rem at 50% -10%, #1F2860, transparent), var(--bg); } }
.auth-card { width: min(26rem, 100%); background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 1.75rem 1.5rem; box-shadow: var(--shadow-2); display: flex; flex-direction: column; gap: 1rem; }
.auth-logo img { height: 2rem; width: auto; }
.auth-form { gap: 0.8rem; } .auth-form h1 { font-size: 1.4rem; } .auth-form p { margin: 0; }
.auth-links { font-size: 0.875rem; }
.auth-lang { display: flex; align-items: center; gap: 0.4rem; color: var(--muted); }

/* ---- logo light/dark ---- */
.logo-dark { display: none; }
:root[data-theme="dark"] .logo-light { display: none; } :root[data-theme="dark"] .logo-dark { display: inline-block; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .logo-light { display: none; } :root:not([data-theme="light"]) .logo-dark { display: inline-block; } }

/* ---- shell ---- */
.shell { height: 100dvh; display: grid; grid-template-rows: auto auto minmax(0, 1fr); background: var(--bg); }
.topbar { display: flex; align-items: center; gap: 0.5rem; padding: 0.4rem 0.75rem; min-height: var(--top-h); border-bottom: 1px solid var(--line); background: var(--surface); }
.brand { display: inline-flex; align-items: center; flex: none; padding: 0 0.25rem; }
.brand img { height: 1.7rem; width: auto; }
.menu-btn { display: none; }
.search { flex: 1; display: flex; align-items: center; gap: 0.4rem; max-width: 42rem; margin: 0 auto 0 0.5rem; background: var(--surface-2); border: 1px solid transparent; border-radius: 999px; padding: 0 0.5rem 0 0.8rem; min-height: 2.5rem; }
.search:focus-within { border-color: var(--accent); background: var(--surface); }
.search-icon { color: var(--muted); }
.search-input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); font: inherit; min-height: 2.25rem; }
.search-input:focus { outline: none; }
.search-scope { border: 0; background: transparent; color: var(--muted); font: inherit; font-size: 0.8125rem; max-width: 7.5rem; }
.pill { display: inline-flex; align-items: center; gap: 0.35rem; border-radius: 999px; padding: 0.3rem 0.7rem; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font-size: 0.8125rem; white-space: nowrap; }
.pill.ok { color: var(--ok); } .pill.info { color: var(--accent); background: var(--info-wash); border-color: var(--info-line); }
.pill.warn { color: var(--warn-ink); background: var(--warn-wash); border-color: var(--warn-line); }
.pill.bad { color: var(--danger); background: var(--danger-wash); border-color: var(--danger-line); }
.pill.busy { color: var(--accent); } .pill.busy .icon { animation: spin 1.2s linear infinite; }
.account-btn { border: 2px solid transparent; background: none; padding: 0; border-radius: 50%; cursor: pointer; display: inline-flex; }
.account-btn:hover { border-color: var(--light-sky); }

.banners { display: flex; flex-direction: column; }
.banner { display: flex; gap: 0.6rem; align-items: center; padding: 0.55rem 1rem; font-size: 0.875rem; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.banner.info { background: var(--info-wash); border-color: var(--info-line); }
.banner.warn { background: var(--warn-wash); border-color: var(--warn-line); color: var(--warn-ink); }
.banner.danger { background: var(--danger-wash); border-color: var(--danger-line); }
.banner-text { flex: 1 1 18rem; min-width: 0; }
.banner-actions { display: flex; gap: 0.5rem; }

.body { display: grid; grid-template-columns: var(--side-w) var(--list-w) minmax(0, 1fr); min-height: 0; }
.pane { min-width: 0; min-height: 0; background: var(--surface); }
.sidebar { overflow: auto; padding: 0.75rem 0.5rem 1rem; background: var(--bg); display: flex; flex-direction: column; gap: 0.5rem; }
.compose-btn { align-self: flex-start; min-height: 3rem; padding: 0.5rem 1.4rem; border-radius: 16px; box-shadow: var(--shadow-1); margin: 0 0 0.5rem 0.25rem; }
.side-list { display: flex; flex-direction: column; gap: 1px; }
.side-link { display: flex; align-items: center; gap: 0.7rem; padding: 0.45rem 0.75rem; border-radius: 999px; color: var(--ink); text-decoration: none; min-height: 2.25rem; }
.side-link:hover { background: var(--hover); }
.side-link.current { background: var(--sel); font-weight: 700; }
.side-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.count { font-size: 0.75rem; font-weight: 700; color: var(--muted); }
.count.unread { color: var(--accent); }
.side-section { display: flex; align-items: center; justify-content: space-between; padding: 0.5rem 0.5rem 0 0.9rem; }
.side-section-title { font-size: 0.75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.side-empty { margin: 0 0.9rem; color: var(--muted); font-size: 0.8125rem; }
.side-row { position: relative; display: flex; align-items: center; }
.side-row .side-link { flex: 1; min-width: 0; }
.side-row.pending .side-name { opacity: .6; }
.side-more { position: absolute; right: 0.25rem; opacity: 0; }
.side-row:hover .side-more, .side-more:focus-visible { opacity: 1; }
.scrim { position: fixed; inset: 0; background: rgba(10, 12, 30, .45); z-index: 40; }

/* ---- list ---- */
.list-pane { display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.list-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; padding: 0.6rem 0.9rem; border-bottom: 1px solid var(--line); min-height: 3.25rem; }
.nowrap { white-space: nowrap; flex-wrap: nowrap; }
.list-title { display: flex; align-items: baseline; gap: 0.6rem; min-width: 0; flex: 1 1 auto; }
.list-title h1 { font-size: 1.15rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bulk { display: flex; align-items: center; gap: 0.25rem; padding: 0.25rem 0.5rem; background: var(--sel); border-bottom: 1px solid var(--line); }
.bulk-n { margin: 0 auto 0 0.25rem; }
.list-scroll { flex: 1; overflow: auto; outline: none; }
.row { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.35rem; padding: 0.6rem 0.75rem 0.6rem 0.4rem; border-bottom: 1px solid var(--line); cursor: pointer; position: relative; }
.row:hover { background: var(--hover); }
.row.open { background: var(--sel); }
.row.selected { background: var(--sel); }
.list-scroll:focus-visible .row.cursor, .row.cursor:focus-within { box-shadow: inset 3px 0 0 var(--cursor); }
.row.cursor { box-shadow: inset 3px 0 0 var(--cursor); }
.row-lead { display: flex; flex-direction: column; align-items: center; gap: 0.15rem; padding-top: 0.1rem; }
.row-check { width: 1.15rem; height: 1.15rem; border: 1.5px solid var(--muted); border-radius: 4px; background: transparent; padding: 0; color: #fff; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; opacity: .55; }
.row:hover .row-check, .row.selected .row-check { opacity: 1; }
.row.selected .row-check { background: var(--brand); border-color: var(--brand); }
.row-star { border: 0; background: none; color: var(--muted); padding: 0.1rem; cursor: pointer; display: inline-flex; border-radius: 50%; }
.row-star.on { color: #E8A100; }
.row-star-gap { height: 1.4rem; }
.row-main { min-width: 0; display: flex; flex-direction: column; gap: 0.1rem; }
.row-top { display: flex; align-items: baseline; gap: 0.4rem; }
.row-from { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-count { font-size: 0.75rem; color: var(--muted); }
.row-date { font-size: 0.75rem; color: var(--muted); white-space: nowrap; }
.row-subject { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-snippet.wrap { white-space: normal; }
.row-snippet { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 0.8125rem; }
.row.unread .row-from, .row.unread .row-subject { font-weight: 700; }
.row.unread .row-date { color: var(--accent); font-weight: 700; }
.row-chips { display: flex; gap: 0.35rem; align-items: center; flex-wrap: wrap; margin-top: 0.15rem; }
.att { color: var(--muted); display: inline-flex; }
.pending-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--sky); display: inline-block; }

/* ---- reader ---- */
.read-pane { display: flex; flex-direction: column; overflow: hidden; }
.reader-empty { height: 100%; display: flex; align-items: center; justify-content: center; }
.reader { display: flex; flex-direction: column; height: 100%; min-height: 0; }
.reader-bar { display: flex; align-items: center; gap: 0.25rem; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--line); min-height: 3.25rem; }
.back-btn { display: none; }
.bar-actions { display: flex; gap: 0.1rem; flex-wrap: wrap; }
.bar-meta { margin-left: auto; font-size: 0.8125rem; }
.reader-scroll { flex: 1; overflow: auto; padding: 1rem 1.25rem 2rem; }
.reader-subject { font-size: 1.35rem; margin-bottom: 0.9rem; overflow-wrap: anywhere; }
.cards { display: flex; flex-direction: column; gap: 0.6rem; }
.card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.card.unread { border-left: 4px solid var(--brand); }
.card-head { display: flex; align-items: center; gap: 0.75rem; width: 100%; text-align: left; background: none; border: 0; padding: 0.7rem 0.9rem; cursor: pointer; border-radius: var(--radius); }
.card-head:hover { background: var(--hover); }
.card-who { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.card-name { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-sub { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 0.8125rem; }
.card-right { display: flex; align-items: center; gap: 0.5rem; color: var(--muted); flex: none; }
.card-date { font-size: 0.8125rem; }
.card-body { padding: 0 0.9rem 0.9rem 3.4rem; display: flex; flex-direction: column; gap: 0.6rem; }
.card-meta { font-size: 0.8125rem; color: var(--muted); }
.meta-line { display: flex; gap: 0.5rem; } .meta-k { min-width: 2.2rem; font-weight: 600; } .meta-v { overflow-wrap: anywhere; }
.msg-frame { width: 100%; border: 0; display: block; min-height: 3rem; background: transparent; color-scheme: light dark; }
.plain { white-space: pre-wrap; overflow-wrap: anywhere; font-family: inherit; }
.body-loading { display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-start; }
.atts { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.att-chip { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.3rem 0.4rem 0.3rem 0.7rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface-2); max-width: 100%; }
.att-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 14rem; } .att-size { font-size: 0.75rem; }
.card-actions, .reply-bar { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.reply-bar { padding-top: 1rem; }

/* ---- compose ---- */
.compose-host { position: fixed; right: 1.5rem; bottom: 0; z-index: 30; pointer-events: none; }
.compose { pointer-events: auto; width: min(36rem, calc(100vw - 1rem)); max-height: min(44rem, 88dvh); display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: 14px 14px 0 0; box-shadow: var(--shadow-2); overflow: hidden; }
.compose.drop { outline: 3px dashed var(--accent); outline-offset: -6px; }
.compose-head { display: flex; align-items: center; justify-content: space-between; padding: 0.4rem 0.5rem 0.4rem 1rem; background: var(--brand); color: var(--on-brand); }
.compose-head .icon-btn { color: var(--on-brand); } .compose-head .icon-btn:hover { background: rgba(255,255,255,.18); }
.compose-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.compose-fields { display: flex; flex-direction: column; border-bottom: 1px solid var(--line); }
.rcpt-row { display: flex; align-items: flex-start; }
.rcpt-row .rcpt { flex: 1; min-width: 0; }
.rcpt { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 0.5rem; padding: 0.3rem 0.8rem; border-bottom: 1px solid var(--line); }
.rcpt-label { color: var(--muted); font-size: 0.8125rem; min-width: 1.8rem; }
.rcpt-box { flex: 1; min-width: 8rem; display: flex; flex-wrap: wrap; gap: 0.25rem; align-items: center; cursor: text; }
.rcpt-chips { display: contents; }
.rcpt-input { flex: 1; min-width: 7rem; border: 0; background: transparent; color: var(--ink); font: inherit; min-height: 2rem; }
.rcpt-input:focus { outline: none; }
.rcpt-err { flex-basis: 100%; color: var(--danger); font-size: 0.8125rem; }
.rcpt-extra { display: flex; flex-direction: column; }
.rchip { display: inline-flex; align-items: center; gap: 0.15rem; padding: 0.1rem 0.2rem 0.1rem 0.6rem; border-radius: 999px; background: var(--sel); font-size: 0.875rem; max-width: 100%; }
.rchip.warn { background: var(--warn-wash); box-shadow: inset 0 0 0 1px var(--warn-line); color: var(--warn-ink); }
.rchip-x { border: 0; background: none; color: inherit; cursor: pointer; display: inline-flex; padding: 0.2rem; border-radius: 50%; }
.compose-subject { border: 0; border-bottom: 1px solid var(--line); background: transparent; color: var(--ink); font: inherit; padding: 0.55rem 0.8rem; min-height: 2.5rem; }
.compose-subject:focus, .compose-body:focus { outline: none; }
.compose-body { flex: 1; min-height: 11rem; resize: none; border: 0; background: transparent; color: var(--ink); font: inherit; padding: 0.7rem 0.8rem; }
.compose-warn { padding: 0.4rem 0.8rem; background: var(--warn-wash); color: var(--warn-ink); font-size: 0.8125rem; border-top: 1px solid var(--warn-line); }
.compose-error { padding: 0.4rem 0.8rem; background: var(--danger-wash); color: var(--danger); font-size: 0.875rem; }
.compose-atts { padding: 0.4rem 0.8rem; } .compose-atts:empty { display: none; }
.compose .check { padding: 0.25rem 0.8rem; font-size: 0.875rem; }
.compose-foot { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.7rem; border-top: 1px solid var(--line); }
.compose-status { font-size: 0.8125rem; }

/* ---- dialogs, menus, toasts ---- */
dialog.dialog { border: 1px solid var(--line); border-radius: 16px; background: var(--surface); color: var(--ink); padding: 0; width: min(30rem, calc(100vw - 2rem)); box-shadow: var(--shadow-2); max-height: 90dvh; overflow: auto; }
dialog.dialog.wide { width: min(46rem, calc(100vw - 2rem)); }
dialog.dialog::backdrop { background: rgba(10, 12, 30, .5); }
.dialog-title { font-size: 1.15rem; padding: 1.1rem 1.25rem 0.4rem; }
.dialog-body { padding: 0.25rem 1.25rem 0.75rem; display: flex; flex-direction: column; gap: 0.6rem; } .dialog-body p { margin: 0; }
.dialog-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 0.5rem; padding: 0.75rem 1.25rem 1.1rem; }
.menu { position: fixed; z-index: 60; min-width: 14rem; max-width: 22rem; max-height: 70dvh; overflow: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-2); padding: 0.35rem; }
.menu-item { display: flex; align-items: center; gap: 0.6rem; width: 100%; text-align: left; border: 0; background: none; padding: 0.5rem 0.65rem; border-radius: 8px; cursor: pointer; }
.menu-item:hover, .menu-item:focus-visible { background: var(--hover); }
.menu-item:disabled { opacity: .45; cursor: not-allowed; }
.menu-gap { width: 18px; flex: none; } .menu-label { flex: 1; } .menu-check { color: var(--accent); }
.menu-sep { height: 1px; background: var(--line); margin: 0.3rem 0; }
.menu-head { padding: 0.4rem 0.65rem; font-size: 0.75rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.toasts { position: fixed; left: 50%; bottom: 1.25rem; transform: translateX(-50%); z-index: 80; display: flex; flex-direction: column; gap: 0.5rem; align-items: center; width: min(32rem, calc(100vw - 1.5rem)); pointer-events: none; }
.toast { pointer-events: auto; display: flex; align-items: center; gap: 0.75rem; width: 100%; padding: 0.65rem 0.8rem; background: var(--ink); color: var(--bg); border-radius: 12px; box-shadow: var(--shadow-2); }
:root[data-theme="dark"] .toast { background: #F2F5FF; color: #14172B; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .toast { background: #F2F5FF; color: #14172B; } }
.toast.danger { background: var(--danger); color: #fff; } .toast span { flex: 1; }
.toast-action { background: none; border: 0; font-weight: 700; cursor: pointer; text-decoration: underline; color: inherit; }
.toast-x { background: none; border: 0; cursor: pointer; color: inherit; display: inline-flex; opacity: .8; }
.sc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem 2rem; }
.sc-group h3 { font-size: 0.8125rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin-bottom: 0.4rem; }
.sc-group dl { display: grid; grid-template-columns: 1fr auto; gap: 0.35rem 0.75rem; margin: 0; } .sc-group dd { margin: 0; text-align: right; } .sc-or { color: var(--muted); font-size: 0.75rem; }
.sync-item { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; flex-wrap: wrap; padding: 0.6rem 0.8rem; border: 1px solid var(--line); border-radius: var(--radius-s); }
.sync-item-main { min-width: 0; flex: 1 1 14rem; overflow-wrap: anywhere; }
.sync-panel h3 { margin: 1rem 0 0.5rem; font-size: 1rem; }

/* ---- settings ---- */
.settings-pane { grid-column: 2 / -1; overflow: auto; }
.settings { padding: 1rem 1.5rem 3rem; max-width: 62rem; }
.set-top { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.set-top h1 { font-size: 1.5rem; }
.set-cols { display: grid; grid-template-columns: 12rem minmax(0, 1fr); gap: 2rem; }
.set-nav { position: sticky; top: 0; align-self: start; display: flex; flex-direction: column; gap: 0.15rem; }
.set-nav a { padding: 0.4rem 0.7rem; border-radius: 8px; color: var(--ink); text-decoration: none; } .set-nav a:hover { background: var(--hover); }
.set-main { display: flex; flex-direction: column; gap: 2rem; }
.set-sec { display: flex; flex-direction: column; gap: 0.75rem; scroll-margin-top: 1rem; } .set-sec h2 { font-size: 1.15rem; padding-bottom: 0.4rem; border-bottom: 1px solid var(--line); }
.set-sec p { margin: 0; }
fieldset { border: 0; padding: 0; margin: 0; } legend { font-size: 0.8125rem; font-weight: 600; color: var(--muted); padding: 0 0 0.25rem; }
.radios { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }

/* ---- responsive ---- */
@media (max-width: 1100px) {
  .body { grid-template-columns: var(--list-w) minmax(0, 1fr); }
  .sidebar { position: fixed; z-index: 50; top: 0; bottom: 0; left: 0; width: min(18rem, 85vw); transform: translateX(-100%); transition: transform .2s ease; background: var(--surface); box-shadow: var(--shadow-2); padding-top: 1rem; }
  .shell.drawer-open .sidebar { transform: none; }
  .menu-btn { display: inline-flex; }
  .settings-pane { grid-column: 1 / -1; }
  .hide-narrow { display: none; }
}
@media (prefers-reduced-motion: reduce) { .sidebar { transition: none; } }
@media (max-width: 760px) {
  .body { grid-template-columns: minmax(0, 1fr); }
  .shell[data-pane="list"] .read-pane, .shell[data-pane="read"] .list-pane { display: none; }
  .brand img { height: 1.4rem; }
  .search { margin-left: 0; min-width: 0; } .search-scope { display: none; } .topbar { gap: 0.25rem; padding: 0.4rem 0.5rem; } .brand { display: none; }
  .pill-label { display: none; } .pill { padding: 0.35rem; }
  .back-btn { display: inline-flex; }
  .reader-scroll { padding: 0.75rem; } .card-body { padding-left: 0.9rem; }
  .compose-host { right: 0; left: 0; top: 0; } .compose { width: 100%; max-height: none; height: 100dvh; border-radius: 0; }
  .set-cols { grid-template-columns: minmax(0, 1fr); } .set-nav { display: none; }
  .settings { padding: 0.75rem 1rem 3rem; }
  .row-check { opacity: 1; }
}
@media (min-width: 761px) and (max-width: 1100px) { .shell[data-pane="list"] .back-btn { display: none; } }
@media print { .sidebar, .topbar, .banners, .list-pane, .compose-host { display: none !important; } body { overflow: visible; } }