/* S3eidat Tools kit — shared look for every tool. Dark-first, one accent (from Downstream). */

@font-face {
  font-family: "Inter";
  src: url("fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Arabic", Tahoma, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  --radius-lg: 18px;
  --radius: 12px;
  --radius-sm: 9px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --ease-spring: cubic-bezier(.34, 1.4, .64, 1);
  --dur: 220ms;
  --gutter: clamp(16px, 3.2vw, 40px);
  --maxw: 1080px;
}

:root, [data-theme="dark"] {
  --bg: #0d0f12;
  --bg-glow: rgba(61, 214, 208, .07);
  --surface: #14171b;
  --surface-2: #1a1e23;
  --surface-3: #22272d;
  --line: rgba(255, 255, 255, .07);
  --line-strong: rgba(255, 255, 255, .13);
  --text: #eceef2;
  --text-2: #a5adb9;
  --text-3: #6d7581;
  --accent: #3dd6d0;
  --accent-strong: #5ee6e0;
  --accent-ink: #04201f;
  --accent-soft: rgba(61, 214, 208, .13);
  --coffee: #f5b971;
  --coffee-soft: rgba(245, 185, 113, .13);
  --danger: #ff7b7b;
  --danger-soft: rgba(255, 123, 123, .12);
  --warn: #f5c26b;
  --ok: #6ee7a8;
  --shadow: 0 1px 0 rgba(255,255,255,.04) inset, 0 12px 40px -12px rgba(0,0,0,.6);
  --shadow-pop: 0 24px 80px -20px rgba(0,0,0,.75), 0 0 0 1px var(--line-strong);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f6f7f9;
  --bg-glow: rgba(14, 159, 154, .08);
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --surface-3: #e7eaef;
  --line: rgba(15, 23, 32, .08);
  --line-strong: rgba(15, 23, 32, .14);
  --text: #12161b;
  --text-2: #4f5866;
  --text-3: #7d8693;
  --accent: #0e9f9a;
  --accent-strong: #0b8a86;
  --accent-ink: #ffffff;
  --accent-soft: rgba(14, 159, 154, .1);
  --coffee: #a8641c;
  --coffee-soft: rgba(168, 100, 28, .1);
  --danger: #d64545;
  --danger-soft: rgba(214, 69, 69, .09);
  --warn: #b7791f;
  --ok: #1f9d61;
  --shadow: 0 1px 2px rgba(15,23,32,.04), 0 10px 30px -14px rgba(15,23,32,.18);
  --shadow-pop: 0 30px 80px -24px rgba(15,23,32,.35), 0 0 0 1px var(--line);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh;
  font-family: var(--font); font-size: 14.5px; line-height: 1.5;
  color: var(--text);
  background: radial-gradient(1200px 500px at 85% -10%, var(--bg-glow), transparent 60%), var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "cv11", "ss03";
  display: flex; flex-direction: column;
}
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; padding: 0; }
button:disabled { cursor: default; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 8px; }
[hidden] { display: none !important; }
::selection { background: var(--accent-soft); }
kbd {
  font: 500 11px/1 var(--font); padding: 3px 6px; border-radius: 6px;
  background: var(--surface-3); color: var(--text-2);
  border: 1px solid var(--line); box-shadow: 0 1px 0 var(--line-strong);
}
code { font-family: var(--mono); font-size: .92em; background: var(--surface-2); padding: 1px 5px; border-radius: 5px; }
svg.i { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- shell (header/footer are injected by kit.js) ---------- */
.s3-top {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 12px;
  padding: 12px var(--gutter);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.s3-brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; font-size: 15px; letter-spacing: -.01em; }
.s3-brand:hover { text-decoration: none; }
.s3-brand img { width: 28px; height: 28px; border-radius: 8px; box-shadow: 0 6px 18px -6px rgba(61,214,208,.45); }
.s3-brand .s3-sep { color: var(--text-3); font-weight: 400; }
.s3-brand .s3-tool { color: var(--text-2); font-weight: 550; }
.s3-top .s3-spacer { flex: 1; }
.s3-top nav { display: flex; align-items: center; gap: 6px; }

.s3-main { flex: 1; width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 8px var(--gutter) 56px; }
.s3-hero { padding: 28px 0 18px; }
.s3-hero h1 { margin: 0 0 6px; font-size: clamp(24px, 4vw, 34px); font-weight: 700; letter-spacing: -.025em; line-height: 1.15; }
.s3-hero p { margin: 0; color: var(--text-2); font-size: 15.5px; max-width: 640px; }
.s3-hero .s3-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }

.s3-foot {
  border-top: 1px solid var(--line); padding: 28px var(--gutter) 36px; color: var(--text-3); font-size: 13px;
}
.s3-foot-in { max-width: var(--maxw); margin: 0 auto; display: grid; gap: 22px; }
.s3-foot-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; }
.s3-foot a { color: var(--text-2); }
.s3-foot a:hover { color: var(--text); }
.s3-foot .s3-links { display: flex; flex-wrap: wrap; gap: 16px; }
.s3-more h3 { margin: 0 0 10px; font-size: 13px; font-weight: 650; color: var(--text-2); letter-spacing: .02em; text-transform: uppercase; }
.s3-more-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; }
.s3-more-grid a {
  display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--line); color: var(--text);
  transition: border-color var(--dur), transform 160ms var(--ease);
}
.s3-more-grid a:hover { text-decoration: none; border-color: var(--line-strong); transform: translateY(-1px); }
.s3-more-grid b { font-weight: 600; font-size: 13.5px; }
.s3-more-grid span { color: var(--text-3); font-size: 12px; }

/* support strip + house ad */
.s3-support {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; padding: 16px 18px;
  border-radius: var(--radius-lg); background: linear-gradient(120deg, var(--coffee-soft), transparent 70%), var(--surface);
  border: 1px solid var(--line);
}
.s3-support .s3-cup { font-size: 26px; line-height: 1; }
.s3-support .s3-copy { flex: 1; min-width: 200px; }
.s3-support b { display: block; color: var(--text); font-size: 14.5px; font-weight: 650; }
.s3-support span { color: var(--text-2); }
.s3-ad {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius);
  border: 1px dashed var(--line-strong); color: var(--text-2);
}
.s3-ad:hover { text-decoration: none; border-color: var(--accent); }
.s3-ad .s3-ad-tag { font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); border: 1px solid var(--line-strong); border-radius: 5px; padding: 1px 5px; }
.s3-ad b { color: var(--text); font-weight: 600; }

/* ---------- building blocks ---------- */
.card {
  padding: 18px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.s3-main > .card + .card, .stack-cards > .card + .card { margin-top: 14px; }
.card h2 { margin: 0 0 12px; font-size: 15px; font-weight: 650; letter-spacing: -.01em; }
.card h2 small { color: var(--text-3); font-weight: 500; margin-inline-start: 6px; }
.stack { display: grid; gap: 12px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.row > h2, .row > h3 { margin: 0; }
.row.end { justify-content: flex-end; }
.row.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 760px) { .grid-2, .grid-3 { grid-template-columns: minmax(0, 1fr); } }
.sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.muted { color: var(--text-2); }
.faint { color: var(--text-3); font-size: 12.5px; }
.mono { font-family: var(--mono); }
.center { text-align: center; }
.mt { margin-top: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 38px; padding: 0 14px; border-radius: 10px; font-weight: 600; font-size: 13.5px;
  background: var(--surface-2); color: var(--text); border: 1px solid var(--line);
  transition: background var(--dur), border-color var(--dur), transform 120ms, filter var(--dur), box-shadow var(--dur);
  white-space: nowrap; text-decoration: none;
}
.btn:hover:not(:disabled) { background: var(--surface-3); border-color: var(--line-strong); text-decoration: none; }
.btn:active:not(:disabled) { transform: scale(.97); }
.btn:disabled { opacity: .4; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn.primary:hover:not(:disabled) { background: var(--accent); filter: brightness(1.07); box-shadow: 0 10px 30px -10px var(--accent); }
.btn.coffee { background: var(--coffee); color: #2a1604; border-color: transparent; }
.btn.coffee:hover:not(:disabled) { background: var(--coffee); filter: brightness(1.06); box-shadow: 0 10px 30px -10px var(--coffee); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn.ghost:hover:not(:disabled) { background: var(--surface-2); color: var(--text); }
.btn.danger { color: var(--danger); }
.btn.small { height: 30px; padding: 0 10px; font-size: 12.5px; border-radius: 8px; }
.btn.big { height: 46px; padding: 0 22px; font-size: 15px; border-radius: 12px; }
.btn.icon { width: 36px; padding: 0; }
.btn svg.i { width: 16px; height: 16px; }

.field { display: grid; gap: 6px; font-size: 12.5px; font-weight: 600; color: var(--text-2); }
.input, .textarea, .select, input[type="text"].input, input[type="number"].input {
  width: 100%; min-height: 40px; padding: 9px 12px; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--line); color: var(--text); font-size: 14px; font-weight: 450;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.textarea { min-height: 160px; resize: vertical; line-height: 1.55; font-family: var(--mono); font-size: 13px; }
.textarea.prose { font-family: var(--font); font-size: 14.5px; }
.input:focus, .textarea:focus, .select:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.input::placeholder, .textarea::placeholder { color: var(--text-3); }
.select { appearance: none; -webkit-appearance: none; padding-right: 32px; cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-3) 50%), linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
  background-position: calc(100% - 17px) 50%, calc(100% - 12px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
input[type="color"] { width: 44px; height: 40px; padding: 3px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface-2); cursor: pointer; }
input[type="range"] { accent-color: var(--accent); width: 100%; }
input[type="checkbox"], input[type="radio"] { accent-color: var(--accent); width: 16px; height: 16px; }
.check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; color: var(--text-2); font-size: 13.5px; }

/* segmented control: <div class="seg" role="radiogroup"><button aria-pressed="true">A</button>…</div> */
.seg { display: inline-flex; padding: 4px; gap: 2px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); flex-wrap: wrap; }
.seg button { padding: 6px 12px; border-radius: 9px; font-weight: 600; font-size: 13px; color: var(--text-2); transition: background var(--dur), color var(--dur); }
.seg button:hover { color: var(--text); }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 0 var(--line-strong) inset, 0 4px 14px -6px rgba(0,0,0,.5); }
[data-theme="light"] .seg button[aria-pressed="true"] { box-shadow: 0 1px 3px rgba(15,23,32,.12), 0 0 0 1px var(--line); }

/* drop zone: <label class="drop"><input type="file" hidden>…</label> */
.drop {
  display: grid; place-items: center; gap: 8px; text-align: center; padding: 34px 18px; border-radius: 14px; cursor: pointer;
  background: var(--surface-2); border: 1.5px dashed var(--line-strong); color: var(--text-2);
  transition: border-color var(--dur), background var(--dur), box-shadow var(--dur);
}
.drop:hover, .drop:focus-within { border-color: var(--accent); }
.drop.is-over { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 4px var(--accent-soft); }
.drop b { color: var(--text); font-size: 15px; }
.drop svg.i { width: 30px; height: 30px; color: var(--accent); }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 550; background: var(--surface-2); color: var(--text-2); border: 1px solid var(--line);
}
.chip.accent { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.chip.ok { color: var(--ok); }
.chip.warn { color: var(--warn); }
.chip.bad { color: var(--danger); background: var(--danger-soft); border-color: transparent; }

.out {
  font-family: var(--mono); font-size: 13px; line-height: 1.6; white-space: pre-wrap; word-break: break-word;
  padding: 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); min-height: 48px;
  user-select: text;
}
.stat { padding: 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); }
.stat b { display: block; font-size: 24px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat span { color: var(--text-3); font-size: 12.5px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }

table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th, .tbl td { text-align: start; padding: 9px 10px; border-bottom: 1px solid var(--line); }
.tbl th { color: var(--text-3); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.tbl td { font-variant-numeric: tabular-nums; }
.tbl-wrap { overflow-x: auto; border-radius: 12px; border: 1px solid var(--line); }

.empty { text-align: center; padding: 36px 18px; color: var(--text-3); }
.empty b { display: block; color: var(--text); font-size: 15px; margin-bottom: 4px; }

.checker { background-color: var(--surface-2); background-image:
  linear-gradient(45deg, var(--surface-3) 25%, transparent 25%), linear-gradient(-45deg, var(--surface-3) 25%, transparent 25%),
  linear-gradient(45deg, transparent 75%, var(--surface-3) 75%), linear-gradient(-45deg, transparent 75%, var(--surface-3) 75%);
  background-size: 16px 16px; background-position: 0 0, 0 8px, 8px -8px, -8px 0; }

/* ---------- toast + modal ---------- */
.s3-toasts { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 90; display: flex; flex-direction: column-reverse; gap: 8px; align-items: center; pointer-events: none; }
.s3-toast {
  pointer-events: auto; display: flex; align-items: center; gap: 10px; padding: 10px 16px; border-radius: 12px;
  background: var(--surface-3); color: var(--text); box-shadow: var(--shadow-pop); font-weight: 550; font-size: 13.5px;
  animation: s3-pop 260ms var(--ease-spring);
}
.s3-toast.error { color: var(--danger); }
.s3-toast.out { animation: s3-out 220ms var(--ease) both; }
.s3-modal { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 16px; background: rgba(0,0,0,.55); animation: s3-fade 200ms var(--ease); }
.s3-sheet { width: min(460px, 100%); max-height: calc(100vh - 32px); overflow: auto; padding: 22px; border-radius: 20px; background: var(--surface); box-shadow: var(--shadow-pop); animation: s3-pop 300ms var(--ease-spring); }
.s3-sheet h2 { margin: 0 0 4px; font-size: 19px; letter-spacing: -.02em; }
.s3-sheet p { margin: 0 0 16px; color: var(--text-2); }
.s3-tiers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 10px; }
.s3-tier { display: grid; gap: 2px; padding: 14px 8px; border-radius: 14px; text-align: center; background: var(--surface-2); border: 1px solid var(--line); color: var(--text); }
.s3-tier:hover { text-decoration: none; border-color: var(--coffee); background: var(--coffee-soft); }
.s3-tier .s3-cups { font-size: 20px; }
.s3-tier b { font-size: 16px; }
.s3-tier span { font-size: 12px; color: var(--text-3); }
.s3-sheet .s3-alt { display: grid; gap: 8px; margin-top: 8px; }

@keyframes s3-pop { from { opacity: 0; transform: translateY(8px) scale(.97); } to { opacity: 1; transform: none; } }
@keyframes s3-out { to { opacity: 0; transform: translateY(6px); } }
@keyframes s3-fade { from { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 1ms !important; transition-duration: 1ms !important; } }
@media (max-width: 560px) {
  .s3-brand .s3-sep, .s3-brand .s3-tool { display: none; }
  .s3-top .btn .s3-lbl { display: none; }
}
@media print {
  /* paper is white: force light values even when the screen theme is dark */
  :root, [data-theme] {
    --bg: #fff; --surface: #fff; --surface-2: #f4f5f7; --surface-3: #e9ebef;
    --line: rgba(0,0,0,.14); --line-strong: rgba(0,0,0,.24);
    --text: #111; --text-2: #3a3f47; --text-3: #6b7280; --shadow: none; color-scheme: light;
  }
  .s3-top, .s3-foot, .s3-toasts, .no-print { display: none !important; }
  body { background: #fff; color: #000; }
}
/* RTL: the select arrow sits on the left */
[dir="rtl"] .select { padding-right: 12px; padding-left: 32px; background-position: 12px 50%, 17px 50%; }