/* AI START v3 — dizayn tizimi
   Uslub: "laboratoriya daftari". Qog'oz fon, siyoh matn, bitta ultramarin urg'u,
   marker sariq faqat belgilash uchun. Serif sarlavhalar + grotesk interfeys + mono yorliqlar. */

:root {
  --paper: #f2f0e9;
  --paper-2: #e8e5db;
  --card: #fbfaf6;
  --card-2: #f6f4ee;
  --ink: #15140f;
  --ink-2: #45433b;
  --mute: #858277;
  --line: #d9d5c8;
  --line-2: #c7c2b2;
  --accent: #2f3bff;
  --accent-2: #1f28c9;
  --accent-soft: #e3e5ff;
  --on-accent: #ffffff;
  --mark: #e6f35a;
  --mark-bg: #e6f35a;
  --mark-on-ink: #e6f35a;
  --ok: #1d7a4b;
  --ok-soft: #dcefe3;
  --warn: #b0561c;
  --warn-soft: #f6e5d6;
  --bad: #c0352a;
  --bad-soft: #f7dfdb;
  --grid-line: rgba(21, 20, 15, .055);
  --shadow: 0 1px 0 rgba(21,20,15,.04), 0 12px 32px -18px rgba(21,20,15,.28);
  --shadow-lg: 0 30px 80px -30px rgba(21,20,15,.45);

  --f-display: "Instrument Serif", "Times New Roman", serif;
  --f-ui: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  --r-sm: 4px;
  --r: 8px;
  --r-lg: 14px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #11110e; --paper-2: #1a1a16; --card: #191915; --card-2: #1f1f1a;
    --ink: #eeece4; --ink-2: #bdbab0; --mute: #87857b; --line: #2d2c26; --line-2: #3c3a33;
    --accent: #8c94ff; --accent-2: #a9afff; --accent-soft: #23264d; --on-accent: #0d0e24;
    --mark: #d6e94a; --mark-bg: rgba(214,233,74,.28); --mark-on-ink: #2f3bff; --ok: #5cc48d; --ok-soft: #173326; --warn: #e3965f; --warn-soft: #3a2616;
    --bad: #f07a6f; --bad-soft: #3d1c19; --grid-line: rgba(238,236,228,.045);
    --shadow: 0 1px 0 rgba(0,0,0,.3), 0 12px 32px -18px rgba(0,0,0,.8);
    --shadow-lg: 0 30px 80px -30px rgba(0,0,0,.9);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #11110e; --paper-2: #1a1a16; --card: #191915; --card-2: #1f1f1a;
  --ink: #eeece4; --ink-2: #bdbab0; --mute: #87857b; --line: #2d2c26; --line-2: #3c3a33;
  --accent: #8c94ff; --accent-2: #a9afff; --accent-soft: #23264d; --on-accent: #0d0e24;
  --mark: #d6e94a; --mark-bg: rgba(214,233,74,.28); --mark-on-ink: #2f3bff; --ok: #5cc48d; --ok-soft: #173326; --warn: #e3965f; --warn-soft: #3a2616;
  --bad: #f07a6f; --bad-soft: #3d1c19; --grid-line: rgba(238,236,228,.045);
  --shadow: 0 1px 0 rgba(0,0,0,.3), 0 12px 32px -18px rgba(0,0,0,.8);
  --shadow-lg: 0 30px 80px -30px rgba(0,0,0,.9);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 15px/1.55 var(--f-ui); letter-spacing: -.005em;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg, iframe { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }
::selection { background: var(--mark); color: #15140f; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }

h1, h2, h3, h4 { margin: 0; font-weight: 500; letter-spacing: -.02em; line-height: 1.12; }
p { margin: 0; }
.serif { font-family: var(--f-display); font-weight: 400; letter-spacing: -.01em; }
.serif em, em.serif { font-style: italic; }
.mono { font-family: var(--f-mono); }
.muted { color: var(--mute); }
.ink-2 { color: var(--ink-2); }
.mark { background: linear-gradient(transparent 58%, var(--mark-bg) 58%, var(--mark-bg) 92%, transparent 92%); padding: 0 .08em; }

/* Yorliqlar */
.label {
  font: 500 11px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute);
  display: inline-flex; align-items: center; gap: 8px;
}
.label .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.label .dot.ok { background: var(--ok); }
.idx { font: 500 11px/1 var(--f-mono); color: var(--mute); letter-spacing: .04em; }

/* Tugmalar */
.btn {
  --b-bg: var(--card); --b-fg: var(--ink); --b-bd: var(--line-2);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: var(--r);
  background: var(--b-bg); color: var(--b-fg); border: 1px solid var(--b-bd);
  font-weight: 500; font-size: 14px; white-space: nowrap;
  transition: background .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease), color .18s;
}
.btn:hover { border-color: var(--ink); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn .icon { font-size: 15px; }
.btn-ink { --b-bg: var(--ink); --b-fg: var(--paper); --b-bd: var(--ink); }
.btn-ink:hover { --b-bg: var(--accent); --b-bd: var(--accent); --b-fg: var(--on-accent); }
.btn-accent { --b-bg: var(--accent); --b-fg: var(--on-accent); --b-bd: var(--accent); }
.btn-accent:hover { --b-bg: var(--accent-2); --b-bd: var(--accent-2); }
.btn-ghost { --b-bg: transparent; --b-bd: transparent; }
.btn-ghost:hover { --b-bg: var(--paper-2); --b-bd: transparent; }
.btn-danger { --b-fg: var(--bad); }
.btn-danger:hover { --b-bd: var(--bad); --b-bg: var(--bad-soft); }
.btn-sm { height: 32px; padding: 0 11px; font-size: 13px; border-radius: 6px; }
.btn-lg { height: 50px; padding: 0 22px; font-size: 15px; }
.btn-icon { width: 36px; height: 36px; padding: 0; }
.btn[aria-busy="true"] { position: relative; color: transparent; }
.btn[aria-busy="true"]::after {
  content: ""; position: absolute; width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid var(--b-fg); border-right-color: transparent; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.link { color: var(--accent); display: inline-flex; align-items: center; gap: 5px; font-weight: 500; }
.link:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Forma */
.field { display: grid; gap: 7px; }
.field > span { font-size: 13px; font-weight: 500; color: var(--ink-2); }
.field > span small { color: var(--mute); font-weight: 400; }
.input, .textarea, .select {
  width: 100%; min-height: 42px; padding: 10px 12px; border-radius: var(--r);
  background: var(--card); border: 1px solid var(--line-2); outline: 0;
  transition: border-color .15s, box-shadow .15s;
}
.textarea { min-height: 92px; resize: vertical; line-height: 1.5; }
.input::placeholder, .textarea::placeholder { color: var(--mute); }
.input:focus, .textarea:focus, .select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--mute) 50%), linear-gradient(135deg, var(--mute) 50%, transparent 50%); background-position: calc(100% - 17px) 18px, calc(100% - 12px) 18px; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
.input-wrap { position: relative; }
.input-wrap > .icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--mute); font-size: 16px; pointer-events: none; }
.input-wrap > .input { padding-left: 38px; }

/* Belgilar */
.tag {
  display: inline-flex; align-items: center; gap: 6px; height: 22px; padding: 0 8px; border-radius: 4px;
  font: 500 11px/1 var(--f-mono); letter-spacing: .03em; text-transform: uppercase;
  background: var(--paper-2); color: var(--ink-2); border: 1px solid transparent; white-space: nowrap;
}
.tag.accent { background: var(--accent-soft); color: var(--accent); }
.tag.ok { background: var(--ok-soft); color: var(--ok); }
.tag.warn { background: var(--warn-soft); color: var(--warn); }
.tag.bad { background: var(--bad-soft); color: var(--bad); }
.tag.line { background: transparent; border-color: var(--line-2); }
.kbd { font: 500 11px/1 var(--f-mono); padding: 3px 6px; border: 1px solid var(--line-2); border-bottom-width: 2px; border-radius: 4px; color: var(--mute); background: var(--card); }

/* Kartalar */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); }
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* Fon: grafik qog'oz */
.grid-paper {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Umumiy yordamchilar */
.small { font-size: 13px; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.row { display: flex; align-items: center; gap: 10px; }
.stack { display: grid; gap: 12px; }
.wrap { flex-wrap: wrap; }
.bar { height: 6px; border-radius: 6px; background: var(--paper-2); overflow: hidden; }
.bar > span { display: block; height: 100%; width: 0; background: var(--accent); border-radius: inherit; transition: width .6s var(--ease); }
.bar.ok > span { background: var(--ok); }
.list-icon { width: 34px; height: 34px; flex: none; display: grid; place-items: center; border-radius: 8px; background: var(--paper-2); color: var(--ink-2); font-size: 16px; }

/* Toast */
.toast-stack { position: fixed; z-index: 90; bottom: 20px; left: 50%; transform: translateX(-50%); display: grid; gap: 8px; pointer-events: none; width: min(420px, calc(100vw - 32px)); }
.toast {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: var(--r);
  background: var(--ink); color: var(--paper); font-size: 14px; box-shadow: var(--shadow-lg);
  animation: toast-in .28s var(--ease);
}
.toast .icon { color: var(--mark); }
.toast.bad .icon { color: #ff8b80; }
.toast.out { animation: toast-out .2s ease forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(6px); } }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 80; background: rgba(17,17,14,.45);
  display: grid; place-items: center; padding: 16px; opacity: 0; pointer-events: none; transition: opacity .2s;
}
.modal-backdrop.open { opacity: 1; pointer-events: auto; }
.modal {
  width: min(560px, 100%); max-height: calc(100vh - 32px); overflow: auto;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-lg);
  transform: translateY(10px) scale(.99); transition: transform .25s var(--ease);
}
.modal-backdrop.open .modal { transform: none; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.modal-body { padding: 20px; display: grid; gap: 14px; }
.modal-body h2 { font-family: var(--f-display); font-weight: 400; font-size: 30px; letter-spacing: -.01em; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 20px; border-top: 1px solid var(--line); background: var(--card-2); border-radius: 0 0 var(--r-lg) var(--r-lg); }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }