/* Почта — тот же строгий светлый стиль, что у «Доступов»: белый фон, тонкие линии, Inter Tight / Inter / JetBrains Mono, один синий акцент. */
:root {
  --bg: #FBFBF9;
  --surface: #FFFFFF;
  --line: #E7E6E1;
  --line-soft: #F0EFEB;
  --ink: #111214;
  --ink-2: #3B3E45;
  --muted: #61646B;
  --accent: #2440E6;
  --accent-ink: #1A2FB0;
  --accent-bg: #F3F5FE;
  --warn-bg: #FEF6EE;
  --warn-line: #F3D7BC;
  --warn-ink: #8A3A05;
  --warn-dot: #D9620B;
  --down: #B4510E;
  --danger: #B42318;
  --display: 'Inter Tight', Inter, system-ui, sans-serif;
  --ui: Inter, system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--ui); -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font-family: inherit; }
a { color: var(--accent); }
a:hover { color: var(--accent-ink); }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.label { font-family: var(--mono); font-size: 12px; color: var(--muted); font-weight: 400; letter-spacing: 0; }
.mono-sm { font-family: var(--mono); font-size: 12px; color: var(--muted); }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 22px; height: 22px; border-radius: 6px; background: var(--ink); display: flex; align-items: center; justify-content: center; }
.brand-mark span { width: 8px; height: 8px; border-radius: 2px; background: var(--bg); }
.brand-name { font-family: var(--display); font-size: 17px; font-weight: 700; letter-spacing: -0.3px; }

.field { width: 100%; height: 48px; padding: 0 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--ink); font: 500 16px var(--ui); outline: none; }
.field:focus { border-color: var(--ink); }
.field-mono { font-family: var(--mono); letter-spacing: 1px; }
.field::placeholder { color: #686B73; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 16px; border-radius: 10px; border: 0; font-size: 14px; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:disabled { opacity: .55; cursor: default; }
.btn-dark { background: var(--ink); color: #FFFFFF; }
.btn-line { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.btn-line:hover:not(:disabled), .btn-line.is-on { border-color: var(--ink); }
.btn-text { background: transparent; color: var(--accent); padding: 0 10px; }
.btn-text:hover { color: var(--accent-ink); }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: 13px; border-radius: 8px; }
.btn-wide { width: 100%; min-height: 52px; font-size: 16px; }
.btn-icon { width: 44px; padding: 0; }
.btn-danger { color: var(--danger); }
.btn-danger:hover { color: #8A1C13; }

/* ---------- вход ---------- */
.lock { max-width: 400px; min-height: 100vh; margin: 0 auto; padding: 56px 24px 32px; display: flex; flex-direction: column; }
.lock-head { margin-top: 80px; display: flex; flex-direction: column; gap: 10px; }
.lock-title { margin: 0; font-family: var(--display); font-size: 40px; font-weight: 600; letter-spacing: -1.6px; line-height: 1.02; }
.lock-lead { margin: 0; font-size: 15px; line-height: 1.55; color: var(--ink-2); }
.lock-form { margin-top: 28px; display: flex; flex-direction: column; gap: 10px; }
.lock-form .label { margin-top: 6px; }
.lock-form .btn-wide { margin-top: 10px; }
.lock-totp { display: flex; flex-direction: column; gap: 10px; }
.lock-error { margin: 4px 0 0; min-height: 20px; font-size: 14px; line-height: 1.5; color: var(--danger); }
.lock-detail { display: block; margin-top: 4px; font-family: var(--mono); font-size: 12px; color: var(--muted); word-break: break-word; }
.lock-alt { margin: 16px 0 0; font-size: 14px; color: var(--ink-2); }
.lock-note { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 16px 1fr; gap: 10px; color: var(--accent); }
.lock-note p { margin: 0; font-size: 13px; line-height: 1.55; color: var(--ink-2); }

/* ---------- каркас ---------- */
.app { min-height: 100vh; display: flex; flex-direction: column; }
.top { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; padding: 10px 32px; min-height: 64px; border-bottom: 1px solid var(--line); background: var(--surface); }
.search-wrap { position: relative; flex: 1 1 320px; max-width: 520px; display: block; color: var(--muted); }
.search-wrap svg { position: absolute; left: 14px; top: 14px; }
.search { height: 44px; padding: 0 64px 0 40px; background: var(--bg); font-size: 15px; }
.kbd { position: absolute; right: 10px; top: 11px; padding: 2px 6px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); font: 12px var(--mono); color: var(--muted); }
.top-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.me { display: flex; align-items: center; gap: 10px; margin-left: 4px; padding-left: 12px; border-left: 1px solid var(--line); }
.me-text { display: flex; flex-direction: column; }
.me-name { font-size: 14px; font-weight: 600; }
.me-sub { font-size: 12px; color: var(--muted); }
.avatar { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--line); color: var(--ink); font-size: 11px; font-weight: 600; display: flex; align-items: center; justify-content: center; }
.avatar.is-dark { width: 32px; height: 32px; font-size: 12px; background: var(--ink); color: #FFFFFF; }

.cols { flex: 1; display: flex; flex-wrap: wrap; align-items: stretch; }
.count { font-family: var(--mono); font-size: 12px; color: var(--accent); }

/* ящики */
.nav { flex: 1 1 240px; max-width: 290px; padding: 24px 16px 28px 32px; border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 22px; }
.nav-all { display: grid; grid-template-columns: 1fr auto; align-items: center; min-height: 44px; padding: 0 4px; border: 0; border-bottom: 1px solid var(--ink); background: transparent; color: var(--ink); text-align: left; font-size: 15px; font-weight: 500; cursor: pointer; }
.nav-all.is-active { font-weight: 700; }
.nav-domain { display: flex; flex-direction: column; }
.nav-domain-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 6px; }
.is-down { color: var(--down) !important; }
.nav-box { display: flex; flex-direction: column; border-bottom: 1px solid var(--line-soft); }
.nav-box-btn { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2px 8px; min-height: 52px; padding: 8px 4px; border: 0; background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.nav-box-addr { font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-box.is-active .nav-box-addr { font-weight: 700; }
.nav-box-btn:hover .nav-box-addr { text-decoration: underline; text-underline-offset: 3px; }
.nav-box-kind { font-size: 12px; color: var(--muted); }
.folders { display: flex; flex-direction: column; padding: 0 0 8px 12px; }
.folder { display: flex; align-items: center; justify-content: space-between; min-height: 36px; padding: 0 8px; border: 0; border-radius: 8px; background: transparent; color: var(--ink-2); font-size: 13px; font-weight: 500; text-align: left; cursor: pointer; }
.folder:hover { background: var(--line-soft); }
.folder.is-active { background: var(--accent-bg); color: var(--accent-ink); font-weight: 600; }
.nav-note { margin: auto 0 0; font-size: 12px; line-height: 1.5; color: var(--muted); }

/* список */
.list { flex: 999 1 460px; min-width: 0; padding: 24px 28px 40px; display: flex; flex-direction: column; gap: 18px; }
.warn { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; padding: 12px 16px; border: 1px solid var(--warn-line); border-radius: 12px; background: var(--warn-bg); }
.warn .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--warn-dot); }
.warn-title { font-size: 14px; font-weight: 600; color: var(--warn-ink); }
.warn-text { font-size: 13px; color: var(--warn-ink); }
.head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px; }
.head-text { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.title { margin: 0; font-family: var(--display); font-size: 40px; font-weight: 600; letter-spacing: -1.4px; line-height: 1; }
.lead { margin: 0; max-width: 620px; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.filters { display: flex; gap: 6px; }
.switch { display: none; }

.mlist { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.mrow { position: relative; border-bottom: 1px solid var(--line); }
.mrow.is-selected { background: var(--accent-bg); }
.mrow.is-selected::before { content: ''; position: absolute; left: -12px; top: 50%; width: 6px; height: 6px; margin-top: -3px; border-radius: 1px; background: var(--accent); }
.mrow-btn { width: 100%; display: grid; grid-template-columns: 12px minmax(0, 1fr) auto; gap: 4px 10px; align-items: center; padding: 13px 4px; border: 0; background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.udot { width: 7px; height: 7px; border-radius: 50%; background: transparent; }
.is-unread .udot { background: var(--accent); }
.mrow-from { display: flex; align-items: center; gap: 8px; min-width: 0; }
.mrow-name { font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.is-unread .mrow-name { font-weight: 700; }
.boxchip { flex: none; padding: 1px 6px; border: 1px solid var(--line); border-radius: 6px; font: 11px var(--mono); color: var(--ink-2); }
.answered { flex: none; display: flex; color: var(--muted); }
.mrow-time { display: flex; align-items: center; gap: 8px; font: 12px var(--mono); color: var(--muted); white-space: nowrap; }
.mrow-line { grid-column: 2 / 4; display: flex; gap: 6px; min-width: 0; font-size: 13px; white-space: nowrap; overflow: hidden; }
.mrow-subj { flex: none; max-width: 60%; overflow: hidden; text-overflow: ellipsis; }
.is-unread .mrow-subj { font-weight: 600; }
.mrow-snip { overflow: hidden; text-overflow: ellipsis; color: var(--muted); }
.empty { margin: 16px 4px; font-size: 14px; color: var(--muted); }
.empty.is-error { color: var(--danger); }
.more { align-self: flex-start; }
.hint { margin: 0; font-size: 12px; line-height: 1.5; color: var(--muted); }

/* письмо */
.pane { flex: 1 1 420px; max-width: 560px; padding: 24px 32px 40px; border-left: 1px solid var(--line); background: var(--surface); display: flex; flex-direction: column; gap: 18px;
  position: sticky; top: 0; align-self: flex-start; min-height: calc(100vh - 65px); max-height: 100vh; overflow-y: auto; }
/* колонка прокручивается целиком: её части (и окно письма) не сжимаются под высоту экрана */
.pane > * { flex-shrink: 0; }
.pane-empty { margin: auto; color: var(--muted); font-size: 14px; }
.pane .back { display: none; align-self: flex-start; padding-left: 0; }
.pane-head { display: flex; flex-direction: column; gap: 8px; }
.pane-title { margin: 0; font-family: var(--display); font-size: 26px; font-weight: 600; letter-spacing: -0.7px; line-height: 1.15; word-break: break-word; }
.meta { margin: 0; display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 8px 12px; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 14px; }
.meta dt { font: 12px var(--mono); color: var(--muted); padding-top: 2px; }
.meta dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.imgnote { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 12px; border-radius: 10px; background: var(--accent-bg); font-size: 13px; color: var(--accent-ink); }
.letter-frame { width: 100%; min-height: 120px; border: 0; display: block; }
.letter-text { font-size: 15px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; }
.atts { display: flex; flex-direction: column; gap: 8px; }
.att { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; }
.att-ext { flex: none; width: 40px; height: 36px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; font: 11px var(--mono); color: var(--ink-2); }
.att-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.att-name { font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.who { margin-top: auto; display: flex; flex-direction: column; gap: 10px; padding-top: 18px; border-top: 1px solid var(--line); }
.people { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.person { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; }
.trail { display: grid; grid-template-columns: 120px 1fr; gap: 6px 12px; font-size: 13px; }

/* новое письмо */
.compose-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form .field { height: 46px; font-size: 15px; }
.form .area { height: auto; min-height: 240px; padding: 12px 14px; line-height: 1.55; resize: vertical; font-weight: 400; }
.form .hint { margin-top: -8px; }
.cc-toggle { align-self: flex-start; padding-left: 0; }
.files { display: flex; flex-wrap: wrap; gap: 6px; }
.file { display: inline-flex; align-items: center; gap: 6px; padding: 4px 4px 4px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 13px; }
.file-x { width: 28px; height: 28px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); font-size: 18px; cursor: pointer; }
.file-x:hover { background: var(--line-soft); color: var(--ink); }
.compose-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.toast { position: fixed; right: 32px; bottom: 28px; z-index: 20; display: flex; align-items: center; gap: 14px; padding: 12px 16px; border-radius: 12px; background: var(--ink); color: #FFFFFF; font-size: 14px; font-weight: 500; box-shadow: 0 12px 32px rgba(17, 18, 20, 0.24); }

.show-sm { display: none; }
.nav-backdrop { display: none; }

/* ---------- открыто письмо: письмо шире списка ---------- */
@media (min-width: 901px) {
  .pane-open .nav { flex: 0 0 232px; max-width: 232px; padding: 20px 12px 24px 24px; }
  .pane-open .nav-note { display: none; }
  .pane-open .list { flex: 0 0 360px; max-width: 360px; padding: 20px 20px 32px; gap: 14px; border-right: 0; }
  .pane-open .title { font-size: 30px; letter-spacing: -1px; }
  .pane-open .warn-text { display: none; }
  .pane-open .mrow-btn { padding: 11px 4px; gap: 3px 8px; }
  .pane-open .mrow-line { flex-direction: column; gap: 2px; }
  .pane-open .mrow-subj { max-width: none; overflow: hidden; text-overflow: ellipsis; }
  .pane-open .mrow-snip { display: none; }
  .pane-open .boxchip { min-width: 0; max-width: 45%; overflow: hidden; text-overflow: ellipsis; }
  .pane-open .hint { display: none; }
  .pane-open .pane { flex: 1 1 0; max-width: none; min-width: 0; padding: 24px 32px 48px; }
  .pane-open .pane-head, .pane-open .meta, .pane-open .actions, .pane-open .imgnote, .pane-open .letter-text,
  .pane-open .atts, .pane-open .who, .pane-open .compose-head, .pane-open .compose { width: 100%; max-width: 820px; }
  .pane-open .letter-frame { max-width: 900px; }
  .pane-open .pane-title { font-size: 28px; }
  .pane-open .pane .back { display: inline-flex; margin: -8px 0 -6px; }
}

/* ---------- телефон ---------- */
@media (max-width: 900px) {
  .top { padding: 10px 16px; gap: 10px; }
  .hide-sm { display: none !important; }
  .show-sm { display: flex; }
  .search-wrap { order: 3; flex-basis: 100%; max-width: none; }
  .search { padding-right: 14px; }
  .cols { display: block; }
  .nav { display: none; }
  .nav-open .nav { display: flex; position: fixed; inset: auto 0 0 0; z-index: 8; max-width: none; max-height: 80vh; overflow-y: auto; padding: 18px 16px 28px; border: 0; border-radius: 18px 18px 0 0; background: var(--surface); box-shadow: 0 -12px 40px rgba(17, 18, 20, 0.22); }
  .nav-open .nav-backdrop { display: block; position: fixed; inset: 0; z-index: 7; border: 0; background: rgba(17, 18, 20, 0.32); }
  .list { padding: 14px 16px 32px; }
  .switch { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; width: 100%; min-height: 52px; padding: 6px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); text-align: left; cursor: pointer; }
  .switch .label { flex-basis: 100%; font-size: 11px; }
  .switch-name { flex: 1; font-size: 15px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .head-text { width: 100%; }
  .title { font-size: 30px; letter-spacing: -1px; }
  .mrow-line { flex-direction: column; gap: 2px; }
  .mrow-subj { max-width: none; }
  .mrow-snip { text-overflow: ellipsis; overflow: hidden; }
  .pane { display: none; }
  .pane-open .pane { display: flex; position: fixed; inset: 0; z-index: 6; max-width: none; max-height: none; min-height: 0; height: 100vh; height: 100dvh; padding: 12px 16px 32px; border: 0; }
  .pane .back { display: inline-flex; }
  .toast { left: 16px; right: 16px; bottom: 20px; justify-content: space-between; }
}