/* ============================================================
   DocAudit — чёрно-белая анимированная тема (в стиле портфолио)
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --bg: #0a0a0a;
  --fg: #f2f2f2;
  --muted: #8a8a8a;
  --line: rgba(242, 242, 242, 0.12);
  --card: #111111;
  --card2: #161616;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.7, 0, 0.3, 1);
  /* градации серого для серьёзности (светлее = серьёзнее) */
  --critical: #f2f2f2;
  --high: #cfcfcf;
  --medium: #a8a8a8;
  --low: #888888;
  --err: #ff5c5c;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg); color: var(--fg);
  font-family: "Inter", system-ui, sans-serif; font-weight: 300; line-height: 1.55;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
  animation: pageIn 0.7s var(--ease);
}
@keyframes pageIn { from { opacity: 0; } }
::selection { background: var(--fg); color: var(--bg); }
a { color: inherit; text-decoration: none; }

/* ---------- живой фон (ч/б): дрейфующие свечения + масккированная сетка ---------- */
body::before {
  content: ""; position: fixed; inset: -25%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(42% 42% at 18% 20%, rgba(242,242,242,0.08), transparent 70%),
    radial-gradient(40% 40% at 84% 80%, rgba(242,242,242,0.055), transparent 70%),
    radial-gradient(30% 30% at 60% 50%, rgba(242,242,242,0.04), transparent 70%);
  filter: blur(24px);
  animation: aurora 24s ease-in-out infinite alternate;
}
@keyframes aurora {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(3.5%, -4.5%) scale(1.18); }
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.55;
  background-image:
    linear-gradient(rgba(242,242,242,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242,242,242,0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 38%, #000 25%, transparent 82%);
  mask-image: radial-gradient(circle at 50% 38%, #000 25%, transparent 82%);
  animation: gridmove 26s linear infinite;
}
@keyframes gridmove { to { background-position: 46px 46px, 46px 46px; } }
h1, h2, h3 { font-family: "Space Grotesk", sans-serif; font-weight: 600; letter-spacing: -0.02em; line-height: 1.05; }

/* ---------- зерно ---------- */
.grain {
  position: fixed; inset: -200%; width: 500%; height: 500%;
  pointer-events: none; z-index: 9998; opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 0.6s steps(2) infinite;
}
@keyframes grain {
  0%{transform:translate(0,0)} 25%{transform:translate(-3%,2%)}
  50%{transform:translate(2%,-3%)} 75%{transform:translate(-2%,-2%)} 100%{transform:translate(2%,3%)}
}

/* ---------- шапка ---------- */
header {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 32px; border-bottom: 1px solid var(--line); position: relative; z-index: 2;
}
header .logo {
  width: 40px; height: 40px; border: 1px solid var(--fg); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: "Space Grotesk"; font-weight: 700; font-size: 15px;
  animation: spin 8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
header h1 { font-size: 18px; font-weight: 600; }
header .sub { font-size: 11px; color: var(--muted); margin-top: 3px; letter-spacing: 0.02em; }
header a { color: var(--fg); font-size: 12px; position: relative; opacity: 0.8; transition: opacity 0.3s; }
header a::after { content: ""; position: absolute; left: 0; bottom: -3px; width: 0; height: 1px; background: currentColor; transition: width 0.35s var(--ease); }
header a:hover { opacity: 1; }
header a:hover::after { width: 100%; }
.status { margin-left: auto; display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #444; }
.dot.on { background: var(--fg); box-shadow: 0 0 10px var(--fg); animation: pulse 2.2s var(--ease) infinite; }
@keyframes pulse { 50% { opacity: 0.45; } }
#userInfo { color: var(--fg); }

/* ---------- навигация ---------- */
.nav { display: flex; gap: 24px; margin-left: 28px; }
.nav a { font-family: "Space Grotesk"; font-size: 14px; color: var(--muted); position: relative; opacity: 1; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: -5px; width: 0; height: 1px; background: var(--fg); transition: width 0.35s var(--ease); }
.nav a:hover { color: var(--fg); }
.nav a.active { color: var(--fg); }
.nav a.active::after, .nav a:hover::after { width: 100%; }
@media (max-width: 640px) { .nav { margin-left: 0; gap: 16px; } header { flex-wrap: wrap; } }

/* ---------- раскладка ---------- */
main { max-width: 920px; margin: 0 auto; padding: 40px 24px 80px; position: relative; z-index: 1; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 6px;
  padding: 26px; margin-bottom: 22px;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.card:hover { border-color: rgba(242,242,242,0.28); }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
label.lbl, .lbl { font-size: 11px; color: var(--muted); display: block; margin-bottom: 8px; letter-spacing: 0.18em; text-transform: uppercase; }

input[type=text], input[type=password], select {
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
  color: var(--fg); padding: 11px 13px; font-size: 14px; font-family: inherit;
  transition: border-color 0.3s var(--ease);
}
input[type=text], input[type=password] { width: 100%; }
input:focus, select:focus { outline: none; border-color: var(--fg); }
select { cursor: pointer; }
#question { flex: 1; }

/* ---------- зона загрузки ---------- */
.drop {
  border: 1px dashed var(--line); border-radius: 8px; padding: 34px; text-align: center;
  cursor: pointer; color: var(--muted); background: var(--bg);
  transition: border-color 0.3s var(--ease), color 0.3s, background 0.3s;
}
.drop.hover, .drop:hover { border-color: var(--fg); color: var(--fg); }
.drop b { color: var(--fg); font-weight: 500; }
.file { margin-top: 14px; font-size: 14px; }
.file span { color: var(--fg); font-family: "Space Grotesk"; }

/* ---------- кнопки ---------- */
.btns { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
button {
  border: 1px solid var(--line); border-radius: 100px; padding: 11px 22px;
  font-size: 14px; font-weight: 500; font-family: "Space Grotesk"; cursor: pointer;
  position: relative; z-index: 0; overflow: hidden; background: transparent; color: var(--fg);
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease);
}
button::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--fg);
  transform: translateY(101%); transition: transform 0.45s var(--ease-io);
}
button:hover:not(:disabled) { color: var(--bg); border-color: var(--fg); }
button:hover:not(:disabled)::before { transform: translateY(0); }
.btn-primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn-primary::before { background: #c4c4c4; }
.btn-sm { padding: 8px 14px; font-size: 12px; }
button.active { background: var(--fg); color: var(--bg); border-color: var(--fg); }
button:disabled { opacity: 0.35; cursor: not-allowed; }

/* ---------- результаты ---------- */
.result h2 { font-size: 17px; margin-bottom: 16px; }
.summary {
  background: var(--card2); border: 1px solid var(--line); border-radius: 6px; padding: 18px 20px;
  animation: rise 0.5s var(--ease);
}
.summary li { margin: 5px 0; }
.summary p { margin: 6px 0; } .summary ul { margin: 6px 0; padding-left: 20px; }
.meta { font-size: 12.5px; color: var(--muted); margin-bottom: 16px; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }

.risk {
  background: var(--card2); border: 1px solid var(--line); border-radius: 6px;
  padding: 15px 17px; margin-bottom: 12px; animation: rise 0.5s var(--ease);
  transition: border-color 0.35s var(--ease);
}
.risk:hover { border-color: rgba(242,242,242,0.3); }
.risk .top { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; flex-wrap: wrap; }
.badge {
  font-size: 11px; font-weight: 700; font-family: "Space Grotesk";
  padding: 3px 10px; border-radius: 100px; color: #0a0a0a; letter-spacing: 0.05em;
}
.risk .type { font-weight: 600; font-size: 14.5px; font-family: "Space Grotesk"; }
.risk .desc { font-size: 14px; }
.risk .cite { font-size: 12.5px; color: var(--muted); font-style: italic; margin-top: 8px; border-left: 1px solid var(--fg); padding-left: 11px; }
.ok-empty { color: var(--fg); }
.err { color: var(--err); font-size: 14px; }
.hint { font-size: 12px; color: var(--muted); margin-top: 8px; }

details { margin-top: 14px; }
summary.tok { cursor: pointer; color: var(--muted); font-size: 13px; }

/* ---------- спиннер / загрузка ---------- */
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--line); border-top-color: var(--fg); border-radius: 50%; animation: spin 0.8s linear infinite; vertical-align: middle; }
.loading { color: var(--muted); display: flex; align-items: center; gap: 12px; font-size: 14px; }

/* ---------- чат ---------- */
.chat { max-height: 360px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding: 4px; }
.msg { max-width: 85%; padding: 11px 15px; border-radius: 12px; font-size: 14px; animation: msgIn 0.35s var(--ease); }
@keyframes msgIn { from { opacity: 0; transform: translateY(8px); } }
.msg.user { align-self: flex-end; background: var(--fg); color: var(--bg); }
.msg.assistant { align-self: flex-start; background: var(--card2); border: 1px solid var(--line); }
.msg p { margin: 4px 0; } .msg ul { margin: 4px 0; padding-left: 18px; }
.chat .empty { color: var(--muted); font-size: 13px; text-align: center; padding: 22px; }

/* ---------- раскладка чата (сайдбар + чистый чат) ---------- */
.chat-layout { display: flex; height: 100vh; overflow: hidden; }
.sidebar {
  width: 272px; flex-shrink: 0; border-right: 1px solid var(--line);
  display: flex; flex-direction: column; background: rgba(0, 0, 0, 0.25);
  position: relative; z-index: 2;
}
.sidebar__top { padding: 18px 14px; display: flex; flex-direction: column; gap: 14px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: "Space Grotesk"; font-weight: 600; font-size: 16px; padding: 0 4px; }
.brand .logo { width: 30px; height: 30px; border: 1px solid var(--fg); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; animation: spin 8s linear infinite; }
.newchat { width: 100%; justify-content: center; }
.side-nav { display: flex; flex-direction: column; gap: 2px; }
.side-nav a { font-family: "Space Grotesk"; font-size: 14px; color: var(--muted); padding: 9px 11px; border-radius: 7px; transition: background 0.25s var(--ease), color 0.25s; }
.side-nav a:hover { background: rgba(242,242,242,0.06); color: var(--fg); }
.side-nav a.active { background: rgba(242,242,242,0.1); color: var(--fg); }
.sidebar__list { flex: 1; overflow-y: auto; padding: 4px 10px 10px; }
.side-label { font-size: 11px; color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase; margin: 12px 6px 8px; }
.conv-item { display: flex; align-items: center; gap: 8px; padding: 9px 10px; border-radius: 7px; cursor: pointer; font-size: 13.5px; color: var(--muted); transition: background 0.2s, color 0.2s; }
.conv-item:hover { background: rgba(242,242,242,0.06); color: var(--fg); }
.conv-item.active { background: rgba(242,242,242,0.11); color: var(--fg); }
.conv-item .t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.conv-item .del { opacity: 0; font-size: 13px; color: var(--muted); flex-shrink: 0; transition: opacity 0.2s, color 0.2s; }
.conv-item:hover .del { opacity: 0.6; }
.conv-item .del:hover { opacity: 1; color: var(--err); }
.sidebar__foot { padding: 14px 18px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; font-size: 13px; }
.sidebar__foot #userInfo { color: var(--fg); }
.sidebar__foot a { color: var(--muted); position: relative; } .sidebar__foot a:hover { color: var(--fg); }

.chat-main { flex: 1; display: flex; flex-direction: column; height: 100vh; position: relative; z-index: 1; }
.chat-main .chat { flex: 1; max-height: none; max-width: 768px; width: 100%; margin: 0 auto; padding: 32px 20px 10px; }
.chat-main .chat .empty { margin: 32vh auto 0; font-family: "Space Grotesk"; font-size: 20px; color: var(--fg); opacity: 0.9; }
.composer { max-width: 768px; width: 100%; margin: 0 auto; padding: 14px 20px 30px; display: flex; gap: 10px; align-items: center; }
.composer input { flex: 1; padding: 15px 18px; border-radius: 100px; font-size: 15px; }
.composer button { border-radius: 50%; width: 48px; height: 48px; padding: 0; font-size: 19px; flex-shrink: 0; }
@media (max-width: 720px) { .sidebar { width: 220px; } }

/* ---------- страница входа ---------- */
.login-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.box { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 38px 34px; width: 360px; max-width: 92vw; animation: rise 0.6s var(--ease); }
.box .logo { width: 54px; height: 54px; border: 1px solid var(--fg); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: "Space Grotesk"; font-weight: 700; font-size: 22px; margin: 0 auto 18px; animation: spin 8s linear infinite; }
.box h1 { text-align: center; font-size: 22px; margin-bottom: 4px; }
.box .sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 26px; }
.box label { font-size: 11px; color: var(--muted); display: block; margin-bottom: 7px; letter-spacing: 0.1em; text-transform: uppercase; }
.box input { width: 100%; }
.box button { width: 100%; margin-top: 20px; justify-content: center; }
.box .err { background: rgba(255,92,92,0.08); border: 1px solid rgba(255,92,92,0.3); padding: 10px 12px; border-radius: 6px; margin-bottom: 18px; display: none; }
.foot { text-align: center; color: var(--muted); font-size: 11px; margin-top: 22px; letter-spacing: 0.05em; }

/* ---------- таблица (админка) ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 8px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }
.badge.role { background: transparent; border: 1px solid var(--line); color: var(--muted); font-weight: 500; }
.badge.role.admin { color: var(--fg); border-color: var(--fg); }
.off { color: var(--err); }
.msg.note { font-size: 13px; margin-top: 12px; }
.msg.note.err { color: var(--err); } .msg.note.ok { color: var(--fg); }

@media (max-width: 640px) { main { padding: 28px 16px 60px; } header { padding: 14px 18px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.01ms !important; } }