/* ==========================================================
   Энциклопедия ответов — оформление
   Архивно-конструктивистский регистр: бумага, типографская сетка,
   один красный акцент. Ничего лишнего.
   ========================================================== */

:root {
  --red: #d81f26;
  --red-soft: #ff4b52;
  --bg: #0d0d0f;
  --bg2: #141417;
  --bg3: #1b1b1f;
  --line: #2a2a30;
  --ink: #ece9e4;
  --ink2: #a5a29c;
  --ink3: #6f6d69;
  --nu: #d8b24c;
  --eg: #d81f26;
  --radius: 3px;
  --maxw: 1320px;
}

:root[data-theme="light"] {
  --bg: #f4f2ee;
  --bg2: #ffffff;
  --bg3: #eae7e1;
  --line: #d6d2ca;
  --ink: #14140f;
  --ink2: #55524c;
  --ink3: #8a867f;
  --nu: #9a6f00;
}

* { box-sizing: border-box; }

/* ---------- фоновая иллюстрация ----------
   Фигура стоит справа и растворяется к колонке с текстом. Картинки небольшие,
   поэтому не растягиваем их на всю ширину: держим по высоте и приглушаем —
   так исходное разрешение незаметно, а рисунок читается. */
#bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-repeat: no-repeat;
  background-position: right center;
  background-size: auto min(94vh, 1000px);
  opacity: .17;
  transition: opacity .3s;
}
#bg::after {
  /* завеса: слева плотный фон, справа чисто — текст всегда на спокойном поле */
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, var(--bg) 0%, var(--bg) 45%, transparent 100%);
  background: linear-gradient(100deg,
    var(--bg) 0%, var(--bg) 34%,
    color-mix(in srgb, var(--bg) 88%, transparent) 52%,
    color-mix(in srgb, var(--bg) 55%, transparent) 72%,
    color-mix(in srgb, var(--bg) 30%, transparent) 100%);
}
:root[data-theme="dark"] #bg { background-image: url('../img/bg-dark.webp'); opacity: .30; }
:root[data-theme="light"] #bg { background-image: url('../img/bg-light.webp'); opacity: .20; }
:root[data-bg="off"] #bg { display: none; }
@media (max-width: 900px) { #bg { opacity: .09; background-size: auto 70vh; } }

/* всё содержимое — над фоном */
.top, .hero, .main, .foot, #modal, #settings { position: relative; z-index: 1; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'liga' 1, 'kern' 1;
}

a { color: var(--red-soft); text-decoration: none; }
:root[data-theme="light"] a { color: var(--red); }
a:hover { text-decoration: underline; }

mark {
  background: rgba(216, 31, 38, .22);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}
:root[data-theme="light"] mark { background: rgba(216, 31, 38, .18); }

/* ---------- шапка ---------- */
.top {
  border-bottom: 2px solid var(--red);
  background: var(--bg2);
  background: color-mix(in srgb, var(--bg2) 92%, transparent);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 40;
}
.top-in {
  max-width: var(--maxw); margin: 0 auto;
  padding: 14px 5%;
  display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 13px; min-width: 0; }
.ava {
  width: 46px; height: 46px; border-radius: 50%;
  border: 2px solid var(--red); flex: none;
  image-rendering: auto; filter: saturate(1.05) contrast(1.05);
}
.brand-txt { min-width: 0; }
.brand h1 {
  font-family: 'Oswald', 'Inter', sans-serif;
  font-weight: 600; font-size: 19px; margin: 0;
  letter-spacing: .04em; text-transform: uppercase; line-height: 1.15;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.brand p { margin: 1px 0 0; font-size: 11.5px; color: var(--ink3); letter-spacing: .05em; }

.top-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.iconbtn {
  background: transparent; border: 1px solid var(--line); color: var(--ink2);
  border-radius: var(--radius); padding: 7px 11px; cursor: pointer;
  font-size: 12.5px; font-family: inherit; letter-spacing: .03em;
  transition: .15s;
}
.iconbtn:hover { border-color: var(--red); color: var(--ink); }

/* ---------- вкладки разделов ---------- */
.tabs {
  max-width: var(--maxw); margin: 0 auto; padding: 0 5%;
  display: flex; gap: 0; border-bottom: 1px solid var(--line);
}
.tab {
  background: none; border: 0; border-bottom: 3px solid transparent;
  color: var(--ink3); font-family: 'Oswald', sans-serif; font-size: 14px;
  letter-spacing: .09em; text-transform: uppercase; font-weight: 500;
  padding: 15px 22px 12px; cursor: pointer; transition: .15s;
  display: flex; align-items: baseline; gap: 8px;
}
.tab:hover { color: var(--ink); }
.tab.on { color: var(--ink); border-bottom-color: var(--red); }
.tab b { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--ink3); font-weight: 400; }

/* ---------- герой ---------- */
.hero { max-width: var(--maxw); margin: 0 auto; padding: 44px 5% 26px; }
.hero h2 {
  font-family: 'Oswald', sans-serif; font-weight: 500;
  font-size: clamp(26px, 4.4vw, 46px); line-height: 1.06;
  margin: 0 0 12px; letter-spacing: -.01em; text-transform: uppercase;
  max-width: 20ch;
}
.hero h2 em { font-style: normal; color: var(--red); }
.hero .lead { color: var(--ink2); max-width: 62ch; margin: 0 0 26px; font-size: 15.5px; }

.searchwrap { position: relative; max-width: 900px; }
.searchwrap::before {
  content: '?'; position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  font-family: 'Oswald', sans-serif; font-size: 22px; color: var(--red); font-weight: 600;
}
#q {
  width: 100%; padding: 19px 20px 19px 46px;
  background: var(--bg2); border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  color: var(--ink); font-size: 17px; font-family: inherit;
  border-radius: var(--radius); outline: none; transition: .15s;
}
#q::placeholder { color: var(--ink3); }
#q:focus { border-color: var(--red); background: var(--bg3); }

.examples { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; align-items: center; }
.examples span { font-size: 12px; color: var(--ink3); margin-right: 3px; }
.example {
  background: var(--bg3); border: 1px solid var(--line); color: var(--ink2);
  border-radius: 100px; padding: 6px 13px; font-size: 12.5px; cursor: pointer;
  font-family: inherit; transition: .15s;
}
.example:hover { border-color: var(--red); color: var(--ink); }

.semchip {
  display: inline-flex; align-items: center; gap: 7px; margin-top: 14px;
  font-size: 11.5px; color: var(--ink3); font-family: 'JetBrains Mono', monospace;
  letter-spacing: .02em;
}
.semchip i { font-style: normal; font-size: 13px; }
.semchip.s-ready i { color: #4caf50; }
.semchip.s-loading i { color: var(--nu); animation: pulse 1.1s infinite; }
.semchip.s-error i { color: var(--red); }
.whybtn {
  background: none; border: 1px solid var(--line); color: var(--ink2);
  border-radius: 100px; padding: 1px 9px; margin-left: 4px; cursor: pointer;
  font-family: inherit; font-size: 11px; letter-spacing: .02em;
}
.whybtn:hover { border-color: var(--red); color: var(--ink); }
@keyframes pulse { 50% { opacity: .25; } }

/* ---------- сетка ---------- */
.main {
  max-width: var(--maxw); margin: 0 auto; padding: 8px 5% 80px;
  display: grid; grid-template-columns: 250px 1fr; gap: 40px; align-items: start;
}
@media (max-width: 900px) { .main { grid-template-columns: 1fr; gap: 22px; } }

.rail { position: sticky; top: 130px; max-height: calc(100vh - 160px); overflow-y: auto; padding-right: 6px; }
@media (max-width: 900px) { .rail { position: static; max-height: none; } }
.rail::-webkit-scrollbar { width: 6px; }
.rail::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }

.rail h4 {
  font-family: 'Oswald', sans-serif; font-size: 11.5px; letter-spacing: .13em;
  text-transform: uppercase; color: var(--ink3); margin: 22px 0 9px;
  padding-bottom: 6px; border-bottom: 1px solid var(--line);
}
.rail h4:first-child { margin-top: 4px; }
.facet {
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px;
  width: 100%; background: none; border: 0; color: var(--ink2);
  padding: 5px 7px; font-size: 13px; text-align: left; cursor: pointer;
  border-radius: var(--radius); font-family: inherit; line-height: 1.35; transition: .12s;
}
.facet:hover { background: var(--bg3); color: var(--ink); }
.facet.on { background: var(--red); color: #fff; }
.facet.on b { color: rgba(255,255,255,.75); }
.facet b { font-family: 'JetBrains Mono', monospace; font-size: 10.5px; color: var(--ink3); font-weight: 400; flex: none; }

/* ---------- панель результатов ---------- */
#toolbar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 12px 0 16px; border-bottom: 1px solid var(--line); margin-bottom: 20px;
}
#count { font-family: 'JetBrains Mono', monospace; font-size: 12.5px; color: var(--ink2); }
#status { font-size: 12.5px; color: var(--ink3); }
.spacer { margin-left: auto; }
select#sort {
  background: var(--bg2); color: var(--ink2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 6px 9px; font-size: 12.5px; font-family: inherit;
}
.btn-ai {
  background: var(--red); color: #fff; border: 0; border-radius: var(--radius);
  padding: 8px 15px; font-size: 12.5px; cursor: pointer; font-family: 'Oswald', sans-serif;
  letter-spacing: .07em; text-transform: uppercase;
}
.btn-ai:hover { background: var(--red-soft); }

/* ---------- сводка ИИ ---------- */
#aibox {
  border: 1px solid var(--line); border-left: 3px solid var(--nu);
  background: var(--bg2); border-radius: var(--radius);
  padding: 16px 18px; margin-bottom: 22px;
}
.ai-head {
  font-family: 'Oswald', sans-serif; font-size: 12px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink2); margin-bottom: 9px;
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
}
.ai-warn {
  background: rgba(216,31,38,.14); color: var(--red-soft); border: 1px solid rgba(216,31,38,.3);
  padding: 2px 8px; border-radius: 100px; font-size: 10px; letter-spacing: .06em;
}
.ai-body { font-size: 15px; }
.ai-body.dim { color: var(--ink3); }
sup.cit { color: var(--red-soft); font-family: 'JetBrains Mono', monospace; font-size: 10px; }

/* ---------- карточки ---------- */
.card {
  border: 1px solid var(--line);
  background: var(--bg2);
  background: color-mix(in srgb, var(--bg2) 94%, transparent);
  backdrop-filter: blur(6px);
  border-radius: var(--radius); padding: 17px 19px; margin-bottom: 13px;
  cursor: pointer; transition: .14s; position: relative; outline: none;
}
.card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: transparent; transition: .14s;
}
.card:hover, .card:focus { border-color: #3d3d45; background: var(--bg3); }
.card:hover::before, .card:focus::before { background: var(--red); }
:root[data-theme="light"] .card:hover { border-color: #b9b4aa; }

.card-head { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-bottom: 9px; }
.who {
  font-family: 'Oswald', sans-serif; font-size: 10.5px; letter-spacing: .1em;
  text-transform: uppercase; padding: 3px 8px; border-radius: 2px; font-weight: 500;
}
.who-nu { background: rgba(216,178,76,.14); color: var(--nu); border: 1px solid rgba(216,178,76,.3); }
.who-eg { background: rgba(216,31,38,.13); color: var(--red-soft); border: 1px solid rgba(216,31,38,.3); }
.who-wit { background: rgba(120,140,200,.14); color: #92a6dd; border: 1px solid rgba(120,140,200,.32); }
:root[data-theme="light"] .who-wit { color: #4a5b93; }
.tabnote {
  background: var(--bg3); border-left: 3px solid #7b8cc8; padding: 11px 14px;
  border-radius: var(--radius); font-size: 13px; color: var(--ink2); margin-bottom: 18px;
}
:root[data-theme="light"] .who-eg { color: var(--red); }
.card-date {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--ink3);
  margin-left: auto; flex: none;
}
.chip {
  font-size: 11px; color: var(--ink2); background: var(--bg3);
  border: 1px solid var(--line); border-radius: 100px; padding: 2px 9px;
}
.chip-topic { cursor: pointer; }
.chip-topic:hover { border-color: var(--red); color: var(--ink); }

.card-title {
  font-family: 'Oswald', sans-serif; font-weight: 500; font-size: 17.5px;
  line-height: 1.25; margin: 0 0 8px; letter-spacing: .005em;
}
.card-q {
  margin: 0 0 9px; font-size: 13.5px; color: var(--ink2);
  padding-left: 11px; border-left: 2px solid var(--line); line-height: 1.5;
}
.q-mark { color: var(--red); font-weight: 700; margin-right: 4px; font-size: 12px; }
.card-a { margin: 0; font-size: 15px; line-height: 1.62; }
.card-foot {
  display: flex; align-items: center; gap: 12px; margin-top: 11px;
  padding-top: 10px; border-top: 1px solid var(--line); flex-wrap: wrap;
}
.src { font-size: 11.5px; color: var(--ink3); font-family: 'JetBrains Mono', monospace; }
.srclink { font-size: 11.5px; }
.expand {
  margin-left: auto; background: none; border: 0; color: var(--ink3);
  font-size: 11.5px; cursor: pointer; font-family: inherit; letter-spacing: .03em;
}
.expand:hover { color: var(--red-soft); }

#more {
  display: block; width: 100%; padding: 14px; margin-top: 8px;
  background: var(--bg2); border: 1px dashed var(--line); color: var(--ink2);
  border-radius: var(--radius); cursor: pointer; font-family: 'Oswald', sans-serif;
  letter-spacing: .08em; text-transform: uppercase; font-size: 12.5px;
}
#more:hover { border-color: var(--red); color: var(--ink); }

.empty { padding: 60px 20px; text-align: center; }
.empty p { margin: 0 0 6px; }
.dim { color: var(--ink3); font-size: 14px; }

/* ---------- модальное окно ---------- */
#modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.72);
  z-index: 90; display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 20px; overflow-y: auto; backdrop-filter: blur(3px);
}
#modal[hidden] { display: none; }
.modal-in {
  background: var(--bg2); border: 1px solid var(--line); border-top: 3px solid var(--red);
  border-radius: var(--radius); max-width: 780px; width: 100%;
  padding: 26px 30px 30px; position: relative;
}
#modal-close {
  position: absolute; right: 14px; top: 12px; background: none; border: 0;
  color: var(--ink3); font-size: 24px; cursor: pointer; line-height: 1; padding: 4px 8px;
}
#modal-close:hover { color: var(--red); }
.modal-head { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.modal-in h2 {
  font-family: 'Oswald', sans-serif; font-weight: 500; font-size: 25px;
  line-height: 1.2; margin: 0 0 12px;
}
.modal-q {
  font-size: 15px; color: var(--ink2); margin: 0 0 18px;
  padding-left: 13px; border-left: 2px solid var(--red);
}
.ctx-label {
  font-family: 'Oswald', sans-serif; font-size: 10.5px; letter-spacing: .13em;
  text-transform: uppercase; color: var(--ink3); margin-bottom: 8px;
}
.ctx-block {
  background: var(--bg3); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 18px;
}
.ctx-line { font-size: 13.5px; color: var(--ink2); margin-bottom: 8px; line-height: 1.55; }
.ctx-line:last-child { margin-bottom: 0; }
.ctx-line b {
  display: block; font-family: 'JetBrains Mono', monospace; font-size: 10.5px;
  color: var(--ink3); font-weight: 400; margin-bottom: 2px; letter-spacing: .02em;
}
.answer-block { margin-bottom: 20px; }
.answer {
  font-size: 16.5px; line-height: 1.7;
  border-left: 3px solid var(--red); padding-left: 16px;
}
.prov { border-top: 1px solid var(--line); padding-top: 14px; }
.prov div {
  display: flex; gap: 12px; font-size: 12.5px; color: var(--ink2);
  margin-bottom: 6px; align-items: baseline;
}
.prov span {
  font-family: 'JetBrains Mono', monospace; font-size: 10.5px; color: var(--ink3);
  min-width: 140px; flex: none; letter-spacing: .02em;
}
.prov a { word-break: break-all; }

/* ---------- настройки ---------- */
#settings {
  position: fixed; inset: 0; background: rgba(0,0,0,.72); z-index: 95;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(3px);
}
#settings[hidden] { display: none; }
.set-in {
  background: var(--bg2); border: 1px solid var(--line); border-top: 3px solid var(--nu);
  border-radius: var(--radius); max-width: 560px; width: 100%; padding: 26px 28px;
  position: relative; max-height: 90vh; overflow-y: auto;
}
.set-in h3 {
  font-family: 'Oswald', sans-serif; margin: 0 0 6px; font-size: 20px;
  text-transform: uppercase; letter-spacing: .05em;
}
.set-in > p { color: var(--ink2); font-size: 14px; margin: 0 0 20px; }
label.fld { display: block; margin-bottom: 16px; }
label.fld > b {
  display: block; font-family: 'Oswald', sans-serif; font-size: 11px;
  letter-spacing: .1em; text-transform: uppercase; color: var(--ink3); margin-bottom: 6px;
}
select, input[type=text], input[type=password] {
  width: 100%; padding: 10px 12px; background: var(--bg3); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius); font-family: inherit; font-size: 14px;
}
.hint { font-size: 12.5px; color: var(--ink3); margin-top: 7px; line-height: 1.5; }
.keycheck { margin-top: 10px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.keycheck .btn { padding: 6px 13px; font-size: 11.5px; }
#keyresult { font-size: 12.5px; color: var(--ink2); flex: 1 1 200px; }
#keyresult .good { color: #4caf50; }
#keyresult .bad { color: var(--red-soft); }
.manualfld { margin-top: 14px; margin-bottom: 4px; }
.hint2 { font-size: 12px; color: var(--ink3); line-height: 1.5; margin-bottom: 6px; }
.hint2 code {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  background: var(--bg3); padding: 1px 5px; border-radius: 3px; color: var(--ink2);
}
.ai-model {
  margin-top: 10px; font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; color: var(--ink3);
}
.ai-raw { margin-top: 10px; font-size: 12px; color: var(--ink3); }
.ai-raw summary { cursor: pointer; }
.note {
  background: var(--bg3); border-left: 3px solid var(--nu); padding: 12px 14px;
  font-size: 13px; color: var(--ink2); border-radius: var(--radius); margin-bottom: 16px;
}
.set-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px; }
.btn {
  padding: 9px 18px; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--bg3); color: var(--ink); cursor: pointer; font-family: 'Oswald', sans-serif;
  letter-spacing: .07em; text-transform: uppercase; font-size: 12.5px;
}
.btn-primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn:hover { border-color: var(--red); }

/* ---------- подвал ---------- */
.foot {
  border-top: 1px solid var(--line);
  background: var(--bg2);
  background: color-mix(in srgb, var(--bg2) 93%, transparent);
  backdrop-filter: blur(8px);
  padding: 34px 5%; color: var(--ink3); font-size: 13px;
}
.foot-in { max-width: var(--maxw); margin: 0 auto; display: grid; gap: 22px; grid-template-columns: 1.4fr 1fr 1fr; }
@media (max-width: 800px) { .foot-in { grid-template-columns: 1fr; } }
.foot h5 {
  font-family: 'Oswald', sans-serif; font-size: 11px; letter-spacing: .13em;
  text-transform: uppercase; color: var(--ink2); margin: 0 0 9px;
}
.foot p { margin: 0 0 8px; line-height: 1.6; }
.foot ul { margin: 0; padding-left: 16px; }
.foot li { margin-bottom: 4px; }

.build {
  max-width: var(--maxw); margin: 18px auto 0; padding: 0 5%;
  font-family: 'JetBrains Mono', monospace; font-size: 10.5px;
  color: var(--ink3); opacity: .6;
}