@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Vazirmatn:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  color-scheme: light;
  --bg: #fbfbf9;
  --panel: #ffffff;
  --panel-2: #f4f3ef;
  --ink: #17191d;
  --ink-2: #4c5057;
  --muted: #777b83;
  --line: #e8e6e0;
  --line-2: #d9d6ce;
  --accent: #17191d;
  --accent-ink: #ffffff;
  --chart: #2f6fb0;
  --good: #1c7a4d;
  --warn: #a4620a;
  --bad: #b3322a;
  --good-bg: #e8f4ed;
  --warn-bg: #fbf1e0;
  --bad-bg: #fbeae8;
  --code-bg: #f4f3ef;
  --shadow: 0 1px 2px rgba(23, 25, 29, .05), 0 8px 28px rgba(23, 25, 29, .06);
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --sans: Inter, Vazirmatn, -apple-system, "Segoe UI", Tahoma, sans-serif;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111214;
  --panel: #18191c;
  --panel-2: #1f2125;
  --ink: #eceded;
  --ink-2: #b7b9bd;
  --muted: #8b8e94;
  --line: #2a2c31;
  --line-2: #383b41;
  --accent: #eceded;
  --accent-ink: #15161a;
  --chart: #5b98d1;
  --good: #5dc08f;
  --warn: #e0a64d;
  --bad: #ee8279;
  --good-bg: #17291f;
  --warn-bg: #2c2312;
  --bad-bg: #2e1a18;
  --code-bg: #1f2125;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #111214;
    --panel: #18191c;
    --panel-2: #1f2125;
    --ink: #eceded;
    --ink-2: #b7b9bd;
    --muted: #8b8e94;
    --line: #2a2c31;
    --line-2: #383b41;
    --accent: #eceded;
    --accent-ink: #15161a;
    --chart: #5b98d1;
    --good: #5dc08f;
    --warn: #e0a64d;
    --bad: #ee8279;
    --good-bg: #17291f;
    --warn-bg: #2c2312;
    --bad-bg: #2e1a18;
    --code-bg: #1f2125;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }
html, body, #root { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-weight: 600; letter-spacing: -.012em; margin: 0; }
a { color: inherit; }
button, input, textarea, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 38px; padding: 7px 14px; border-radius: 9px; border: 1px solid var(--line-2); background: var(--panel); cursor: pointer; font-weight: 500; font-size: 14px; text-decoration: none; transition: background .12s, border-color .12s, opacity .12s; white-space: nowrap; }
.btn:hover { background: var(--panel-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { opacity: .88; background: var(--accent); }
.btn.quiet { border-color: transparent; background: transparent; color: var(--ink-2); }
.btn.quiet:hover { background: var(--panel-2); }
.btn.danger { color: var(--bad); }
.btn.small { min-height: 30px; padding: 3px 10px; font-size: 13px; border-radius: 7px; }
.btn:disabled { opacity: .5; cursor: default; }
:focus-visible { outline: 2px solid var(--chart); outline-offset: 2px; }

.field { display: block; margin: 0 0 14px; }
.field > span { display: block; font-size: 13px; font-weight: 500; color: var(--ink-2); margin-bottom: 5px; }
.field > span.actions { display: flex; flex-wrap: nowrap; margin: 0; }
.field .actions .input { flex: 1; min-width: 0; }
.field small { color: var(--muted); font-weight: 400; }
.input { width: 100%; min-height: 40px; padding: 8px 11px; border: 1px solid var(--line-2); border-radius: 9px; background: var(--panel); }
textarea.input { resize: vertical; line-height: 1.6; }
.input:focus { outline: 2px solid var(--chart); outline-offset: -1px; border-color: transparent; }
.check { display: flex; gap: 9px; align-items: flex-start; font-size: 14px; color: var(--ink-2); margin-bottom: 12px; cursor: pointer; }
.check input { margin-top: 4px; }
.muted { color: var(--muted); }
.small-text { font-size: 13px; }
.error { color: var(--bad); font-size: 14px; min-height: 20px; margin: 4px 0 10px; }

/* Login */
.auth { min-height: 100%; display: flex; align-items: center; justify-content: center; padding: 28px 16px; }
.auth-card { width: 100%; max-width: 392px; }
.mark { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -.01em; }
.mono { width: 30px; height: 30px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-size: 12px; font-weight: 600; letter-spacing: .02em; flex: none; }
.auth h1 { font-size: 26px; margin: 42px 0 8px; }
.auth p.lead { color: var(--ink-2); margin: 0 0 26px; }
.code-input { font-size: 22px; letter-spacing: .3em; text-align: center; font-weight: 500; }
.auth-foot { margin-top: 42px; font-size: 13px; color: var(--muted); }
.auth-foot a, .auth-foot button { color: var(--muted); }
.auth-foot button { background: none; border: 0; padding: 0; cursor: pointer; font-size: 13px; text-decoration: underline; }
.auth-foot button:hover { color: var(--ink); }
.notice-page { max-width: 460px; padding: 24px 16px; margin: 12vh auto 0; }
.notice-page h1 { font-size: 22px; margin: 34px 0 10px; }

/* Chat layout */
.app { height: 100%; display: grid; grid-template-columns: 276px minmax(0, 1fr); }
.side { display: flex; flex-direction: column; min-height: 0; background: var(--panel); border-right: 1px solid var(--line); }
.side-top { padding: 16px 16px 12px; }
.side .btn.new { width: 100%; margin-top: 16px; }
.conv-list { flex: 1; overflow-y: auto; padding: 4px 10px; }
.conv { display: block; width: 100%; text-align: start; padding: 8px 10px; border: 0; border-radius: 8px; background: none; cursor: pointer; font-size: 14px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; unicode-bidi: plaintext; }
.conv:hover { background: var(--panel-2); }
.conv.on { background: var(--panel-2); color: var(--ink); font-weight: 500; }
.side-foot { border-top: 1px solid var(--line); padding: 13px 16px; font-size: 13px; }
.who { color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meter { height: 4px; border-radius: 4px; background: var(--panel-2); margin: 10px 0 6px; overflow: hidden; }
.meter i { display: block; height: 100%; background: var(--ink-2); border-radius: 4px; }
.foot-links { display: flex; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.foot-links a, .foot-links button { background: none; border: 0; padding: 0; color: var(--muted); font-size: 13px; cursor: pointer; text-decoration: none; }
.foot-links a:hover, .foot-links button:hover { color: var(--ink); }

.main { display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.topbar { display: none; align-items: center; gap: 10px; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--panel); }
.scroll { flex: 1; overflow-y: auto; }
.thread { max-width: 760px; margin: 0 auto; padding: 32px 24px 16px; }
.banner { margin: 0 auto 22px; padding: 12px 15px; border-radius: 10px; background: var(--warn-bg); color: var(--warn); font-size: 14px; display: flex; justify-content: space-between; gap: 14px; align-items: center; flex-wrap: wrap; }
.empty { padding: 11vh 0 20px; }
.empty h1 { font-size: 27px; margin-bottom: 10px; }
.empty p { color: var(--ink-2); margin: 0 0 26px; max-width: 560px; }
.tips { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.tip { text-align: start; padding: 12px 14px; border: 1px solid var(--line); background: var(--panel); border-radius: 11px; cursor: pointer; font-size: 14px; color: var(--ink-2); unicode-bidi: plaintext; }
.tip:hover { border-color: var(--line-2); color: var(--ink); }

.msg { margin-bottom: 26px; }
.msg.student { display: flex; justify-content: flex-end; }
.bubble { background: var(--panel-2); padding: 10px 15px; border-radius: 15px; max-width: 85%; white-space: pre-wrap; overflow-wrap: anywhere; unicode-bidi: plaintext; text-align: start; }
.answer { line-height: 1.8; overflow-wrap: anywhere; }
.answer > :first-child { margin-top: 0; }
.answer > :last-child { margin-bottom: 0; }
.answer p, .answer ul, .answer ol { margin: 0 0 12px; unicode-bidi: plaintext; }
.answer ul, .answer ol { padding-inline-start: 22px; }
.answer li { unicode-bidi: plaintext; }
.answer code { font: 13px/1.5 var(--mono); background: var(--code-bg); padding: 1px 5px; border-radius: 5px; direction: ltr; unicode-bidi: isolate; }
.codeblock { position: relative; margin: 0 0 14px; direction: ltr; text-align: left; }
.codeblock pre { margin: 0; padding: 14px 16px; background: var(--code-bg); border-radius: 10px; overflow-x: auto; font: 13px/1.6 var(--mono); }
.codeblock pre code { background: none; padding: 0; }
.answer code, .codeblock pre { font-variant-ligatures: none; font-feature-settings: "liga" 0, "calt" 0; }
.codeblock .copy { position: absolute; top: 7px; right: 7px; font-size: 12px; padding: 2px 8px; min-height: 0; }
.from { display: flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 500; margin-bottom: 7px; color: var(--ink-2); }
.from .mono { width: 20px; height: 20px; font-size: 9px; border-radius: 5px; }
.quote { display: block; width: 100%; text-align: start; border: 0; border-inline-start: 3px solid var(--chart); background: var(--panel-2); border-radius: 8px; padding: 7px 11px; margin: 0 0 11px; cursor: pointer; font-size: 13px; line-height: 1.5; color: var(--ink-2); }
.quote:hover { background: var(--line); }
.quote-label { display: block; font-size: 12px; font-weight: 500; color: var(--ink); }
.quote-text { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; unicode-bidi: plaintext; }
.flash .bubble, .convo-msg.flash { animation: flash 2s ease-out; }
@keyframes flash { 0%, 45% { box-shadow: 0 0 0 2px var(--chart); } 100% { box-shadow: 0 0 0 2px transparent; } }
@media (prefers-reduced-motion: reduce) { .flash .bubble, .convo-msg.flash { animation-duration: .01s; box-shadow: 0 0 0 2px var(--chart); } }
.ahmad-card { border: 1px solid var(--line-2); border-radius: 13px; padding: 14px 16px; background: var(--panel); }
.msg-tools { display: flex; gap: 2px; margin-top: 7px; }
.icon-btn { width: 30px; height: 30px; display: grid; place-items: center; border: 0; background: none; color: var(--muted); border-radius: 7px; cursor: pointer; }
.icon-btn:hover { background: var(--panel-2); color: var(--ink); }
.icon-btn.on { color: var(--ink); background: var(--panel-2); }
.icon-btn svg { width: 16px; height: 16px; }
.working { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 14px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-2); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }
.failed { color: var(--ink-2); font-size: 14px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

.composer-wrap { padding: 0 24px 16px; background: linear-gradient(to top, var(--bg) 78%, transparent); }
.composer { max-width: 712px; margin: 0 auto; border: 1px solid var(--line-2); border-radius: 15px; background: var(--panel); box-shadow: var(--shadow); padding: 11px 12px 9px 15px; }
.composer textarea { display: block; width: 100%; border: 0; background: none; outline: 0; resize: none; max-height: 240px; line-height: 1.6; unicode-bidi: plaintext; }
.composer-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 6px; }
.lesson-select { max-width: min(330px, 62%); font-size: 13px; border: 0; background: none; color: var(--muted); padding: 3px 0; cursor: pointer; text-overflow: ellipsis; }
.send { width: 34px; height: 34px; min-height: 0; padding: 0; border-radius: 9px; flex: none; }
.send svg { width: 16px; height: 16px; }
.disclaimer { max-width: 712px; margin: 9px auto 0; text-align: center; font-size: 12px; color: var(--muted); }

.scrim { position: fixed; inset: 0; background: rgba(0, 0, 0, .34); z-index: 9; }
dialog { border: 1px solid var(--line); border-radius: 15px; background: var(--panel); color: var(--ink); padding: 24px; width: min(480px, calc(100vw - 32px)); box-shadow: var(--shadow); }
dialog.wide { width: min(780px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(0, 0, 0, .42); }
dialog h2 { font-size: 19px; margin-bottom: 10px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; flex-wrap: wrap; }

/* Legal pages */
.doc { max-width: 680px; margin: 0 auto; padding: 38px 20px 70px; }
.doc h1 { font-size: 27px; margin: 34px 0 8px; }
.doc h2 { font-size: 17px; margin: 28px 0 8px; }
.doc p, .doc li { color: var(--ink-2); }

/* Admin */
.admin { min-height: 100%; display: grid; grid-template-columns: 216px minmax(0, 1fr); }
.admin-nav { position: sticky; top: 0; height: 100vh; padding: 18px 12px; background: var(--panel); border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.admin-nav .mark { padding: 0 6px; margin-bottom: 22px; font-size: 14px; }
.nav-item { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 8px 10px; border: 0; background: none; border-radius: 8px; cursor: pointer; color: var(--ink-2); font-size: 14px; margin-bottom: 2px; text-align: left; }
.nav-item:hover { background: var(--panel-2); }
.nav-item.on { background: var(--panel-2); color: var(--ink); font-weight: 500; }
.count { font-size: 12px; padding: 0 7px; border-radius: 9px; background: var(--accent); color: var(--accent-ink); font-weight: 500; }
.admin-nav .foot-links { margin-top: auto; padding: 0 6px; }
.admin-main { padding: 30px 34px 60px; min-width: 0; max-width: 1240px; }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head h1 { font-size: 23px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 14px; }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: 13px; padding: 15px 17px; }
.tile .label { font-size: 13px; color: var(--muted); }
.tile .value { font-size: 27px; font-weight: 600; letter-spacing: -.02em; margin-top: 3px; font-variant-numeric: tabular-nums; }
.tile .sub { font-size: 12px; color: var(--muted); }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 14px; margin-bottom: 14px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 13px; padding: 17px 18px; min-width: 0; margin-bottom: 14px; }
.grid-2 .card { margin-bottom: 0; }
.card h2 { font-size: 15px; margin-bottom: 12px; }
.chart { position: relative; width: 100%; }
.chart svg { display: block; width: 100%; }
.chart .tick { font-size: 11px; fill: var(--muted); }
.chart .gridline { stroke: var(--line); stroke-width: 1; }
.chart .bar { fill: var(--chart); }
.chart .band:hover + .bar, .chart .bar.hot { opacity: .72; }
.chart .band { fill: transparent; }
.chart .line { fill: none; stroke: var(--chart); stroke-width: 2; stroke-linejoin: round; }
.chart .marker { fill: var(--chart); stroke: var(--panel); stroke-width: 2; }
.chart .cross { stroke: var(--line-2); stroke-width: 1; }
.tooltip { position: absolute; pointer-events: none; background: var(--ink); color: var(--bg); padding: 5px 9px; border-radius: 7px; font-size: 12px; white-space: nowrap; transform: translate(-50%, -100%); z-index: 3; }
details.table-view { margin-top: 10px; font-size: 13px; color: var(--muted); }
details.table-view summary { cursor: pointer; }
.hbar { display: grid; grid-template-columns: minmax(90px, 150px) 1fr 40px; gap: 10px; align-items: center; font-size: 13px; margin-bottom: 8px; color: var(--ink-2); }
.hbar .track { height: 12px; }
.hbar .fill { display: block; height: 100%; background: var(--chart); border-radius: 0 4px 4px 0; min-width: 2px; }
.hbar .num { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-weight: 500; color: var(--muted); font-size: 12.5px; padding: 7px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--panel-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.pill { display: inline-block; font-size: 12px; font-weight: 500; padding: 1px 8px; border-radius: 9px; background: var(--panel-2); color: var(--ink-2); white-space: nowrap; }
.pill.active, .pill.processed, .pill.sent { background: var(--good-bg); color: var(--good); }
.pill.expired, .pill.flagged, .pill.ignored { background: var(--warn-bg); color: var(--warn); }
.pill.revoked, .pill.error, .pill.failed { background: var(--bad-bg); color: var(--bad); }
.q-card { background: var(--panel); border: 1px solid var(--line); border-radius: 13px; padding: 18px; margin-bottom: 14px; }
.q-head { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin-bottom: 9px; }
.q-text { white-space: pre-wrap; unicode-bidi: plaintext; text-align: start; margin-bottom: 12px; overflow-wrap: anywhere; }
.q-meta { font-size: 13px; color: var(--ink-2); background: var(--panel-2); border-radius: 9px; padding: 9px 12px; margin-bottom: 12px; }
.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--line); }
.tab { padding: 8px 12px; border: 0; background: none; cursor: pointer; color: var(--muted); font-size: 14px; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab.on { color: var(--ink); border-bottom-color: var(--ink); font-weight: 500; }
.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 9px 16px; border-radius: 10px; font-size: 14px; z-index: 50; max-width: calc(100vw - 32px); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.convo-msg { padding: 11px 0; border-bottom: 1px solid var(--line); }
.convo-msg:last-child { border-bottom: 0; }
.convo-msg .who-line { font-size: 12px; color: var(--muted); margin-bottom: 4px; display: flex; gap: 8px; flex-wrap: wrap; }
.url-box { font: 12.5px var(--mono); background: var(--code-bg); padding: 9px 11px; border-radius: 8px; overflow-wrap: anywhere; direction: ltr; }

@media (max-width: 820px) {
  .input, .composer textarea { font-size: 16px; }
  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app { grid-template-columns: minmax(0, 1fr); }
  .side { position: fixed; inset: 0 auto 0 0; width: min(286px, 84vw); z-index: 10; transform: translateX(-102%); transition: transform .18s; }
  .side.open { transform: none; box-shadow: var(--shadow); }
  .topbar { display: flex; }
  .thread { padding: 20px 16px 12px; }
  .composer-wrap { padding: 0 16px 12px; }
  .empty { padding-top: 5vh; }
  .admin { grid-template-columns: minmax(0, 1fr); }
  .admin-nav { position: static; height: auto; flex-direction: row; flex-wrap: wrap; gap: 2px; padding: 10px 12px; border-right: 0; border-bottom: 1px solid var(--line); align-items: center; }
  .admin-nav .mark { width: 100%; margin-bottom: 8px; }
  .nav-item { width: auto; gap: 7px; }
  .admin-nav .foot-links { margin: 0 0 0 auto; }
  .admin-main { padding: 20px 16px 50px; }
  .grid-2 { grid-template-columns: minmax(0, 1fr); }
}