/* avr study — по брендбуку avr: бирюза, туман и звезда. Material 3 Expressive в цветах avr. */
@import url("/static/fonts/fonts.css");

:root {
  /* бренд */
  --biruza: #0B4248; --biruza-deep: #08353A; --tuman: #D3E3E4; --tuman-muted: #A9C4C6;
  --pink: #F2A5C3; --violet: #5A4FC8; --paper: #E9EFEF;
  --star: linear-gradient(135deg, #F2A5C3 0%, #5A4FC8 100%);

  /* тёмная тема — родная */
  --bg: var(--biruza);
  --bg-deep: var(--biruza-deep);
  --surface: color-mix(in srgb, var(--tuman) 6%, var(--biruza));
  --surface-2: color-mix(in srgb, var(--tuman) 12%, var(--biruza));
  --surface-3: color-mix(in srgb, var(--tuman) 18%, var(--biruza));
  --line: color-mix(in srgb, var(--tuman) 12%, transparent);
  --text: var(--tuman);
  --muted: var(--tuman-muted);
  --accent: var(--pink);          /* акцент тёмной темы: кнопка, ссылки, надписи над заголовком */
  --on-accent: var(--biruza);
  --danger: #F4A7A0;
  --ok: #9FD8C6;

  --r-xs: 10px; --r-s: 16px; --r-m: 24px; --r-l: 32px;
  --font: "Google Sans Flex", "Roboto Flex", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
  color-scheme: dark;
}
:root[data-theme="light"] {
  /* светлая — бумага, бирюзовый текст, фиолетовый акцент */
  --bg: var(--paper);
  --bg-deep: #DCE6E6;
  --surface: #F4F7F7;
  --surface-2: #DFE8E8;
  --surface-3: #D2DEDE;
  --line: color-mix(in srgb, var(--biruza) 12%, transparent);
  --text: var(--biruza);
  --muted: #3E5F63;
  --accent: var(--violet);
  --on-accent: #fff;
  --danger: #B3261E;
  --ok: #1E6B57;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 420 16px/1.5 var(--font); font-variation-settings: "ROND" 50;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
::selection { background: color-mix(in srgb, var(--accent) 40%, transparent); }

/* шрифтовая шкала брендбука */
h1, .display { font-weight: 720; font-size: 32px; line-height: 1.15; letter-spacing: -0.01em;
  font-variation-settings: "wdth" 112, "ROND" 100; margin: 0 0 14px; text-wrap: balance; }
h2 { font-weight: 680; font-size: 22px; line-height: 1.25; font-variation-settings: "wdth" 106, "ROND" 100; margin: 0 0 12px; }
h3 { font-weight: 620; font-size: 16px; margin: 16px 0 8px; }
.eyebrow { font-weight: 620; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin: 0 0 6px; }
.muted, small { color: var(--muted); }
small { font-size: 13px; }
code { font-family: var(--mono); font-size: .88em; background: var(--surface-2); padding: 1px 6px; border-radius: 6px; }
code.secret { word-break: break-all; user-select: all; }

/* звезда */
.star { display: inline-block; width: 1em; height: 1em; background: var(--star);
  -webkit-mask: url("/static/star.svg") center/contain no-repeat; mask: url("/static/star.svg") center/contain no-repeat; flex: none; }
.star.lg { width: 72px; height: 72px; }
.star.xl { width: 96px; height: 96px; filter: drop-shadow(0 0 28px color-mix(in srgb, var(--pink) 45%, transparent)); }
.star-loader { width: 22px; height: 22px; animation: breathe 1.5s ease-in-out infinite; }
@keyframes breathe { 0%, 100% { transform: scale(.82) rotate(-6deg); opacity: .75; } 50% { transform: scale(1.08) rotate(6deg); opacity: 1; } }
ul.stars { list-style: none; padding: 0; margin: 8px 0; }
ul.stars li { position: relative; padding-left: 22px; margin: 6px 0; }
ul.stars li::before { content: ""; position: absolute; left: 0; top: .32em; width: 12px; height: 12px; background: var(--star);
  -webkit-mask: url("/static/star.svg") center/contain no-repeat; mask: url("/static/star.svg") center/contain no-repeat; }
.divider { display: flex; align-items: center; gap: 12px; margin: 22px 0; color: var(--muted); }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* шапка: горизонтальная сборка — звезда и надпись, слева */
header.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 12px 24px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line); }
.lockup { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none !important; }
.lockup .star { width: 26px; height: 26px; }
.wordmark { font-family: "Outfit", var(--font); font-weight: 600; font-size: 24px; letter-spacing: -0.02em; line-height: 1; }
.wordmark em { font-style: normal; font-weight: 500; color: var(--accent); }
header.top nav { display: flex; gap: 6px; flex: 1; flex-wrap: wrap; }
header.top nav a { padding: 7px 14px; border-radius: 999px; color: var(--text); background: var(--surface-2);
  font-weight: 620; font-size: 14px; text-decoration: none; }
header.top nav a:hover { background: var(--surface-3); }
header.top nav a.on { background: var(--accent); color: var(--on-accent); }
.icon-btn { width: 40px; height: 40px; border-radius: 999px; border: 0; background: var(--surface-2); color: var(--text);
  display: inline-grid; place-items: center; cursor: pointer; padding: 0; }
.icon-btn:hover { background: var(--surface-3); }
.icon-btn svg { width: 20px; height: 20px; fill: currentColor; }

main { max-width: 1040px; margin: 0 auto; padding: 28px 24px 64px; }

/* карточки без теней */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-m); padding: 22px 24px; margin-bottom: 18px; }
.card.narrow { max-width: 440px; margin: 0 auto; }
.card.note { border-color: color-mix(in srgb, var(--accent) 45%, transparent); }

/* кнопки-таблетки */
button, .button { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border: 0; border-radius: 999px;
  background: var(--surface-2); color: var(--text); font: 620 14px/1.2 var(--font); cursor: pointer; text-decoration: none !important;
  transition: background .15s, transform .15s cubic-bezier(.34, 1.56, .64, 1); }
button:hover, .button:hover { background: var(--surface-3); }
button:active, .button:active { transform: scale(.96); }
button.primary { background: var(--accent); color: var(--on-accent); }
button.primary:hover { background: color-mix(in srgb, var(--accent) 88%, #fff); }
button.outline { background: transparent; color: var(--accent); box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--accent) 70%, transparent); }
button.small { padding: 6px 14px; font-size: 13px; }
button.link { background: none; color: var(--muted); padding: 6px 10px; }
button.link:hover { color: var(--text); background: var(--surface-2); }
button.danger { color: var(--danger); background: transparent; box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--danger) 60%, transparent); }
form.inline { display: inline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* поля */
label { display: block; margin: 0 0 14px; font-weight: 620; font-size: 14px; }
label small { display: block; font-weight: 420; margin-top: 2px; }
label.check { display: flex; gap: 10px; align-items: baseline; font-weight: 420; font-size: 15px; }
label.check small { display: inline; }
input, textarea, select { width: 100%; margin-top: 6px; padding: 12px 14px; border: 1px solid transparent; border-radius: var(--r-s);
  background: var(--surface-2); color: var(--text); font: 420 15px/1.4 var(--font); }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); background: var(--surface-3); }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .8; }
input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }
input[type=file] { padding: 8px; font-size: 13px; }
input[type=file]::file-selector-button { border: 0; border-radius: 999px; padding: 6px 14px; margin-right: 10px;
  background: var(--surface-3); color: var(--text); font: 620 13px var(--font); cursor: pointer; }
textarea.mono { font: 13px/1.55 var(--mono); }
.row-form { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; margin: 10px 0; }
.row-form label { flex: 1; min-width: 220px; margin: 0; }

/* сообщения */
.flash { padding: 12px 18px; border-radius: var(--r-s); margin-bottom: 18px; display: flex; gap: 10px; align-items: center; font-weight: 620; font-size: 14px; }
.flash.ok { background: color-mix(in srgb, var(--accent) 16%, var(--surface)); }
.flash.err { background: color-mix(in srgb, var(--danger) 18%, var(--surface)); color: var(--text); }

/* статусы и чипы */
.status-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 999px; background: var(--surface);
  border: 1px solid var(--line); font-size: 13px; font-weight: 620; color: var(--text); text-decoration: none !important; }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.pill.good::before { background: var(--ok); }
.pill.warn::before { background: var(--accent); }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.tabs a { padding: 8px 16px; border-radius: 999px; color: var(--text); background: var(--surface-2); font-weight: 620; font-size: 14px; text-decoration: none; }
.tabs a b { font-weight: 720; margin-left: 4px; color: var(--muted); }
.tabs a.on { background: var(--accent); color: var(--on-accent); }
.tabs a.on b { color: inherit; }
.st { display: inline-block; font-size: 12px; font-weight: 620; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); white-space: nowrap; color: var(--text); }
.st.big { font-size: 14px; padding: 7px 14px; }
.st-review, .st-question { background: var(--accent); color: var(--on-accent); }
.st-submitted, .st-done_manual { background: color-mix(in srgb, var(--ok) 22%, var(--surface)); }
.st-error, .st-submit_failed { background: color-mix(in srgb, var(--danger) 26%, var(--surface)); }
.st-budget { box-shadow: inset 0 0 0 1.5px var(--accent); background: transparent; }
.st-solving, .st-new, .st-submitting { background: var(--surface-3); }

/* список заданий */
.list { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-m); overflow: hidden; }
.row { display: flex; gap: 16px; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--line); color: var(--text); text-decoration: none !important; }
.row:last-child { border-bottom: 0; }
.row:hover { background: var(--surface-2); }
.row .main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.row .main b { font-weight: 680; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row .main small { margin-top: 2px; }

/* пустое состояние: звезда + одна фраза + кнопка */
.empty { text-align: center; padding: 56px 20px; color: var(--muted); display: flex; flex-direction: column; align-items: center; gap: 14px; }
.empty p { margin: 0; font-size: 17px; color: var(--text); }

/* карточка задания */
.head { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.actions form { display: flex; gap: 8px; flex-wrap: wrap; }
.busy { display: flex; gap: 10px; align-items: center; color: var(--muted); margin: 14px 0 0; font-weight: 620; }
.pre { white-space: pre-wrap; }
pre.preview, pre.log { white-space: pre-wrap; background: var(--bg-deep); color: var(--text); padding: 16px; border-radius: var(--r-s);
  max-height: 520px; overflow: auto; font: 13px/1.55 var(--mono); margin: 8px 0 0; }
pre.log { max-height: 75vh; }
.files { list-style: none; padding: 0; margin: 0; }
.files li { display: flex; gap: 12px; align-items: center; padding: 8px 0; flex-wrap: wrap; border-bottom: 1px solid var(--line); }
.files li:last-child { border-bottom: 0; }
.files a { font-weight: 620; }
.replace input[type=file] { width: auto; margin: 0; }
details summary { cursor: pointer; margin: 8px 0; font-weight: 620; color: var(--text); }
details summary::marker { color: var(--accent); }

/* переписка */
.chat .msg { border-radius: var(--r-m); padding: 12px 16px; margin: 12px 0; max-width: 86%; background: var(--surface-2); }
.chat .msg.user { margin-left: auto; background: color-mix(in srgb, var(--accent) 18%, var(--surface)); border-bottom-right-radius: 8px; }
.chat .msg.assistant { border-bottom-left-radius: 8px; }
.chat .msg.question { box-shadow: inset 0 0 0 1.5px var(--accent); }
.chat .who { font-size: 12px; font-weight: 620; color: var(--muted); margin-bottom: 4px; display: flex; gap: 6px; align-items: center; }
.chat .event { text-align: center; font-size: 12px; color: var(--muted); margin: 8px 0; }
.chat .reply { margin-top: 16px; }
.small-files { font-size: 12px; margin-top: 6px; }

/* расходы */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-m); padding: 18px 20px; display: flex; flex-direction: column; gap: 4px; }
.stat span { font-size: 13px; font-weight: 620; color: var(--muted); }
.stat b { font-size: 30px; font-weight: 720; font-variation-settings: "wdth" 112, "ROND" 100; }
.stat.hero b { color: var(--accent); }
table.grid { width: 100%; border-collapse: collapse; margin-bottom: 16px; font-size: 14px; }
table.grid th, table.grid td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
table.grid th { font-weight: 620; color: var(--muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }

/* прочее */
.qr { display: block; margin: 16px auto; width: 220px; height: 220px; background: #fff; border-radius: var(--r-s); padding: 6px; }
.howto { padding-left: 20px; }
.howto li { margin-bottom: 8px; }
.howto li::marker { color: var(--accent); font-weight: 720; }
.settings h2 { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); }
.settings h2:first-of-type { border-top: 0; padding-top: 0; }
.sessions { padding-left: 18px; }
.page-head { margin-bottom: 18px; }
.page-head p { margin: 0; color: var(--muted); max-width: 640px; }

/* экран входа: звёздное поле + вертикальная сборка */
body.auth { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; position: relative; overflow-x: hidden;
  background-color: var(--bg-deep); }
body.auth::before { content: ""; position: fixed; inset: -50%; pointer-events: none; opacity: .9;
  background-image:
    radial-gradient(1.2px 1.2px at 12% 18%, var(--tuman) 50%, transparent 51%),
    radial-gradient(1px 1px at 72% 12%, var(--tuman-muted) 50%, transparent 51%),
    radial-gradient(1.6px 1.6px at 38% 64%, var(--pink) 50%, transparent 51%),
    radial-gradient(1px 1px at 86% 72%, var(--tuman) 50%, transparent 51%),
    radial-gradient(1.3px 1.3px at 55% 35%, var(--tuman-muted) 50%, transparent 51%),
    radial-gradient(1px 1px at 22% 82%, var(--tuman) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 92% 28%, #8E86E0 50%, transparent 51%),
    radial-gradient(1px 1px at 64% 90%, var(--tuman-muted) 50%, transparent 51%);
  background-size: 420px 420px; animation: drift 120s linear infinite; }
@keyframes drift { to { transform: translateY(-420px); } }
body.auth main { position: relative; width: 100%; }
.auth-lockup { display: flex; flex-direction: column; align-items: center; gap: 14px; margin-bottom: 26px; text-align: center; }
.auth-lockup .wordmark { font-size: 40px; }
.auth-lockup p { margin: 0; color: var(--muted); }
body.auth .card { background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(6px); }
body.auth button.primary { width: 100%; justify-content: center; padding: 13px 20px; font-size: 15px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (max-width: 640px) {
  main { padding: 16px 14px 48px; }
  header.top { padding: 10px 14px; }
  .row { flex-wrap: wrap; }
  .head { flex-direction: column; }
  h1 { font-size: 26px; }
  .chat .msg { max-width: 100%; }
}