/* Tokens + shared components (site & panels) */
:root {
  --accent: #ff5a36; --accent-ink: #fff;
  --bg: #f5f4ef; --bg2: #ebe9e2; --card: #ffffff; --fg: #111112; --fg2: #3b3b3f; --muted: #75747a;
  --line: rgba(17,17,18,.11); --line2: rgba(17,17,18,.2);
  --inv-bg: #111112; --inv-fg: #f5f4ef;
  --ok: #1f9d55; --warn: #c98a12; --err: #d64545; --info: #2f7de1;
  --radius: 20px; --radius-sm: 12px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 12px 32px -14px rgba(0,0,0,.18);
  --font-fa: 'Vazirmatn'; --font-lt: 'Inter'; --font-d: 'Inter Tight';
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d0d0e; --bg2: #161618; --card: #18181a; --fg: #f2f1ec; --fg2: #cfcec8; --muted: #8f8e8a;
    --line: rgba(242,241,236,.1); --line2: rgba(242,241,236,.2); --inv-bg: #f2f1ec; --inv-fg: #0d0d0e;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 18px 40px -16px rgba(0,0,0,.7); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d0d0e; --bg2: #161618; --card: #18181a; --fg: #f2f1ec; --fg2: #cfcec8; --muted: #8f8e8a;
  --line: rgba(242,241,236,.1); --line2: rgba(242,241,236,.2); --inv-bg: #f2f1ec; --inv-fg: #0d0d0e;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 18px 40px -16px rgba(0,0,0,.7); color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 15px/1.7 var(--font-lt), var(--font-fa), system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
html[lang="fa"] body { font-family: var(--font-fa), var(--font-lt), Tahoma, sans-serif; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.2; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.ic { flex: none; vertical-align: middle; }
[hidden] { display: none !important; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; height: 44px; padding: 0 20px; border-radius: 999px; border: 1px solid transparent;
  background: var(--fg); color: var(--bg); font-weight: 600; font-size: 14px; white-space: nowrap; transition: transform .15s, background .2s, opacity .2s; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: none; }
.btn:disabled { opacity: .5; pointer-events: none; }
.btn.accent, .btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.ghost { background: transparent; color: var(--fg); border-color: var(--line2); }
.btn.ghost:hover { background: var(--bg2); }
.btn.danger { background: var(--err); color: #fff; }
.btn.sm { height: 34px; padding: 0 14px; font-size: 13px; }
.btn.xs { height: 28px; padding: 0 10px; font-size: 12px; gap: .3em; }
.btn.lg { height: 54px; padding: 0 26px; font-size: 15px; }
.icon-btn { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--fg); transition: background .2s; }
.icon-btn:hover { background: var(--bg2); }
.icon-btn.accent { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.icon-btn.sm { width: 30px; height: 30px; }
.link { display: inline-flex; align-items: center; gap: .4em; font-weight: 600; background: none; border: 0; padding: 0; color: var(--fg); }
.link:hover { color: var(--accent); }
.link.sm { font-size: 13px; }
html[dir="rtl"] .ic-flip, html[dir="rtl"] .link .ic, html[dir="rtl"] .btn .ic, html[dir="rtl"] .go .ic { transform: scaleX(-1); }

/* forms */
.form { display: grid; gap: 16px; }
.form label, .fld { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--fg2); }
input:not([type=checkbox]):not([type=radio]):not([type=color]):not([type=range]), select, textarea {
  width: 100%; min-height: 44px; padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--line2); background: var(--card); font-weight: 400; font-size: 14px; color: var(--fg); transition: border-color .2s, box-shadow .2s; }
textarea { resize: vertical; line-height: 1.6; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent); }
input[type=checkbox], input[type=radio] { accent-color: var(--accent); width: 16px; height: 16px; }
input[type=color] { width: 44px; height: 44px; border: 1px solid var(--line2); border-radius: 10px; padding: 3px; background: var(--card); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 640px) { .grid2, .grid3 { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.row-end { display: flex; justify-content: flex-end; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.row-gap { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 20px; }
.row-gap.center { justify-content: center; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--bg2); color: var(--fg2); white-space: nowrap; }
.err-text { color: var(--err); }

/* chips */
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line2); font-size: 14px; background: transparent; transition: background .2s, border-color .2s, color .2s; }
.chip:hover { border-color: var(--fg); }
.chip.sm { padding: 5px 11px; font-size: 12.5px; text-align: start; }
.chip.check { cursor: pointer; }
.chip.check input { display: none; }
.chip.check:has(input:checked) { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

/* modal */
body.has-modal { overflow: hidden; }
.modal-back { position: fixed; inset: 0; z-index: 1000; background: rgba(8,8,10,.55); backdrop-filter: blur(6px); display: grid; place-items: center; padding: 16px; animation: fade .18s; overflow-y: auto; }
.modal-back.out { opacity: 0; transition: opacity .18s; }
.modal { position: relative; width: min(560px, 100%); max-height: calc(100vh - 32px); overflow-y: auto; background: var(--card); color: var(--fg); border-radius: var(--radius); padding: 28px; box-shadow: 0 40px 80px -20px rgba(0,0,0,.5); animation: pop .2s; }
.modal.wide { width: min(980px, 100%); }
.modal.xwide { width: min(1240px, 100%); }
.modal.sm { width: min(420px, 100%); }
.modal.media { padding: 0; background: #000; overflow: hidden; }
.modal.media .modal-x { color: #fff; background: rgba(0,0,0,.4); z-index: 2; }
.modal h3 { margin-bottom: 14px; padding-inline-end: 34px; }
.modal-x { position: absolute; top: 14px; inset-inline-end: 14px; width: 34px; height: 34px; border-radius: 50%; border: 0; background: var(--bg2); color: var(--fg); display: grid; place-items: center; }
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(.98); } }
.embed { position: relative; aspect-ratio: 16/9; width: 100%; background: #000; }
.embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* toasts */
#toasts { position: fixed; z-index: 2000; bottom: 20px; inset-inline-start: 50%; transform: translateX(-50%); display: grid; gap: 8px; width: min(420px, calc(100% - 32px)); }
html[dir="rtl"] #toasts { transform: translateX(50%); }
.toast { padding: 12px 16px; border-radius: 12px; background: var(--fg); color: var(--bg); font-size: 14px; box-shadow: var(--shadow); animation: pop .2s; border-inline-start: 4px solid var(--ok); }
.toast.err { border-color: var(--err); } .toast.warn { border-color: var(--warn); }
.toast.out { opacity: 0; transform: translateY(8px); transition: .3s; }

.av { display: inline-grid; place-items: center; border-radius: 50%; color: #fff; font-weight: 700; font-size: 12px; object-fit: cover; flex: none; }
.langs { display: inline-flex; gap: 2px; padding: 3px; border-radius: 999px; border: 1px solid var(--line); }
.langs button { border: 0; background: transparent; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 700; color: var(--muted); font-family: var(--font-lt), var(--font-fa), sans-serif; }
.langs button.on { background: var(--fg); color: var(--bg); }
.stars { display: flex; gap: 6px; justify-content: center; margin: 10px 0; }
.stars button { border: 0; background: none; color: var(--warn); padding: 4px; }
.stars button:hover { transform: scale(1.15); }
.stars button:hover .ic { fill: currentColor; }
.code { font: 700 22px/1.4 var(--font-lt), monospace; letter-spacing: .06em; padding: 10px 18px; border-radius: 12px; background: var(--bg2); display: inline-block; margin: 6px 0 12px; }
.done-box { text-align: center; padding: 24px 8px; display: grid; justify-items: center; gap: 4px; }
.done-box > .ic { color: #fff; background: var(--ok); border-radius: 50%; padding: 8px; width: 56px; height: 56px; }
.done-box.sm > .ic { width: 40px; height: 40px; padding: 6px; }
.boot-err { min-height: 100vh; display: grid; place-content: center; text-align: center; gap: 12px; padding: 24px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }