/* ============================================================
   TLD.SC — Domain & URL Toolkit
   Single stylesheet. Light + dark (prefers-color-scheme).
   ============================================================ */

:root {
  --accent: #6366f1;
  --accent-2: #06b6d4;
  --accent-grad: linear-gradient(135deg, #6366f1, #06b6d4);

  --bg: #f7f8fb;
  --panel: #ffffff;
  --panel-2: #f1f3f9;
  --text: #0f172a;
  --muted: #5b6478;
  --border: #e2e6f0;
  --border-strong: #cbd2e1;
  --code-bg: #f4f6fb;
  --shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 8px 24px -12px rgba(15, 23, 42, .12);
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120;
    --panel: #101830;
    --panel-2: #16203c;
    --text: #e6eaf4;
    --muted: #93a0b8;
    --border: #212d4d;
    --border-strong: #2e3c61;
    --code-bg: #0d1428;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px -12px rgba(0, 0, 0, .6);
    --ok: #4ade80;
    --warn: #fbbf24;
    --err: #f87171;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.icon { display: block; }

/* ---------------- header ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.logo:hover { text-decoration: none; }
.logo-text { font-weight: 800; font-size: 22px; letter-spacing: -.5px; }
.logo-dot { color: var(--accent-2); }
.header-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  color: var(--muted); font-weight: 600; font-size: 14px;
  padding: 7px 12px; border-radius: 8px;
}
.nav-link:hover { color: var(--text); background: var(--panel-2); text-decoration: none; }

/* language switcher */
.lang-switch { position: relative; }
.lang-switch summary {
  list-style: none; cursor: pointer; user-select: none;
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 700; font-size: 13px; color: var(--muted);
  padding: 7px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel);
}
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-switch summary:hover { color: var(--text); border-color: var(--border-strong); }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 60;
  margin: 0; padding: 6px; list-style: none; min-width: 180px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow);
  max-height: 70vh; overflow: auto;
}
.lang-menu a { display: block; padding: 7px 12px; border-radius: 8px; color: var(--text); font-size: 14px; }
.lang-menu a:hover { background: var(--panel-2); text-decoration: none; }
.lang-menu a.is-active { color: var(--accent); font-weight: 700; }

/* ---------------- hero ---------------- */
.hero { padding: 56px 0 34px; text-align: center; }
.hero-title {
  margin: 0 0 10px; font-size: clamp(30px, 5vw, 44px); font-weight: 800; letter-spacing: -1px; line-height: 1.15;
}
.hero-sub { margin: 0 auto 18px; max-width: 640px; color: var(--muted); font-size: 18px; }
.privacy-badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13.5px; font-weight: 600; color: var(--ok);
  background: color-mix(in srgb, var(--ok) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--ok) 30%, transparent);
  padding: 6px 14px; border-radius: 999px;
}
.privacy-badge.small { font-size: 12.5px; padding: 4px 11px; }

/* ---------------- home grid ---------------- */
.tools-section { padding: 10px 0 30px; }
.tool-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.tool-card {
  display: flex; flex-direction: column; gap: 4px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 18px 18px 16px; color: var(--text);
  transition: transform .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.tool-card:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow); }
.tool-icon {
  width: 44px; height: 44px; display: grid; place-items: center; margin-bottom: 8px;
  border-radius: 11px; color: #fff; background: var(--accent-grad);
}
.tool-name { font-weight: 700; font-size: 16px; }
.tool-tag { color: var(--muted); font-size: 13.5px; line-height: 1.45; }

/* ---------------- api note (home) ---------------- */
.api-note { padding: 0 0 60px; text-align: center; }
.api-note p {
  display: inline-flex; align-items: center; gap: 8px; margin: 0;
  font-size: 13.5px; color: var(--muted);
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 999px; padding: 8px 18px;
}
.api-note svg { color: var(--accent); flex: none; }
.api-note a { font-weight: 600; }

/* ---------------- tool page ---------------- */
.tool-hero { padding: 30px 0 8px; }
.crumbs { font-size: 13px; color: var(--muted); display: flex; gap: 8px; margin-bottom: 14px; }
.crumbs a { color: var(--muted); }
.tool-title { margin: 0 0 8px; font-size: clamp(26px, 4vw, 36px); font-weight: 800; letter-spacing: -.8px; }
.tool-intro { margin: 0 0 14px; max-width: 760px; color: var(--muted); }
.tool-body { padding: 18px 0 70px; }

.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 18px; margin-bottom: 16px;
}
.panel-title {
  margin: 0 0 12px; font-size: 13px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .6px; color: var(--muted);
}
.grid-2 { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.grid-io { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 860px) { .grid-2, .grid-io { grid-template-columns: 1fr; } }

/* forms */
textarea, input[type="text"], input[type="number"], input[type="email"], select {
  width: 100%; color: var(--text); background: var(--code-bg);
  border: 1px solid var(--border-strong); border-radius: 10px;
  padding: 10px 12px; font-size: 14px; outline: none;
}
textarea { font-family: var(--mono); font-size: 13px; line-height: 1.55; min-height: 220px; resize: vertical; }
textarea.small { min-height: 90px; }
textarea:focus, input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
label.field { display: block; margin-bottom: 12px; }
label.field > span, .field-label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 5px; }
.hint { font-size: 12.5px; color: var(--muted); margin-top: 5px; }
.req { color: var(--err); }

/* choices */
.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choice {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer; user-select: none;
  font-size: 13.5px; padding: 7px 12px; border: 1px solid var(--border-strong);
  border-radius: 9px; background: var(--panel);
}
.choice:hover { border-color: var(--accent); }
.choice input { accent-color: var(--accent); margin: 0; }
.choice-list { display: flex; flex-direction: column; gap: 7px; }
.choice-list .choice { border: none; padding: 2px 0; background: none; border-radius: 0; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  font: 600 14px/1 inherit; padding: 10px 16px; border-radius: 10px;
  border: 1px solid var(--border-strong); background: var(--panel); color: var(--text);
  transition: filter .1s ease, transform .05s ease;
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent-grad); border: none; color: #fff; padding: 11px 18px; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-sm { padding: 6px 11px; font-size: 12.5px; border-radius: 8px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; align-items: center; }
.btn[disabled] { opacity: .5; pointer-events: none; }

/* output */
.out-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.stats-line { font-size: 13px; color: var(--muted); }
.stats-line b { color: var(--text); }
pre.output {
  margin: 0; padding: 12px 14px; background: var(--code-bg); border: 1px solid var(--border);
  border-radius: 10px; font-family: var(--mono); font-size: 13px; line-height: 1.55;
  overflow: auto; max-height: 480px; white-space: pre-wrap; word-break: break-all;
}
.badge {
  display: inline-block; font-size: 11.5px; font-weight: 700; padding: 2px 9px;
  border-radius: 999px; background: var(--panel-2); color: var(--muted);
}
.badge-acc { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); }
.badge-ok { background: color-mix(in srgb, var(--ok) 13%, transparent); color: var(--ok); }
.badge-err { background: color-mix(in srgb, var(--err) 13%, transparent); color: var(--err); }

/* tables */
.tbl-wrap { overflow: auto; border: 1px solid var(--border); border-radius: 10px; max-height: 560px; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th, .tbl td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.tbl th {
  position: sticky; top: 0; z-index: 2; background: var(--panel-2);
  font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); white-space: nowrap;
}
.tbl tr:last-child td { border-bottom: none; }
.tbl td.mono, .mono { font-family: var(--mono); font-size: 12.8px; word-break: break-all; }
.tbl .num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl tr.is-dup td { background: color-mix(in srgb, var(--warn) 8%, transparent); }

/* stat cards + bars */
.stat-grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.stat {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px;
}
.stat .v { font-size: 22px; font-weight: 800; letter-spacing: -.5px; }
.stat .k { font-size: 12px; color: var(--muted); line-height: 1.35; }
.bar-row { display: grid; grid-template-columns: 110px 1fr 52px; gap: 10px; align-items: center; font-size: 13px; margin-bottom: 6px; }
.bar-row .lbl { font-family: var(--mono); font-size: 12.5px; text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-track { background: var(--panel-2); border-radius: 6px; height: 14px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent-grad); border-radius: 6px; min-width: 2px; }
.bar-row .cnt { color: var(--muted); font-variant-numeric: tabular-nums; }

/* toast */
#toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); font-size: 13.5px; font-weight: 600;
  padding: 9px 18px; border-radius: 999px; opacity: 0; pointer-events: none;
  transition: opacity .18s ease, transform .18s ease; z-index: 100;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* misc */
.result-note { font-size: 13px; color: var(--muted); margin: 10px 0 0; }
.error-text { color: var(--err); font-size: 13px; }
.ok-text { color: var(--ok); }
.warn-note {
  font-size: 13px; color: var(--warn); background: color-mix(in srgb, var(--warn) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--warn) 25%, transparent); border-radius: 10px; padding: 9px 13px;
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: 12.5px; font-family: var(--mono); background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 7px; padding: 3px 9px;
}
.file-drop { border: 1.5px dashed var(--border-strong); border-radius: 10px; padding: 10px 14px; font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.file-drop.drag { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, transparent); }
.file-drop input { display: none; }
.file-btn { cursor: pointer; color: var(--accent); font-weight: 600; }

/* 404 */
.nf { text-align: center; padding: 40px 0 60px; }
.nf-code { font-size: 72px; font-weight: 800; margin: 0; background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------------- footer ---------------- */
.site-footer { border-top: 1px solid var(--border); background: var(--panel); padding: 34px 0 26px; margin-top: 20px; }
.footer-grid { display: grid; gap: 28px; grid-template-columns: 1.4fr 1fr 1fr; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-tagline { margin: 8px 0 10px; color: var(--muted); font-size: 14px; }
.footer-privacy { display: flex; gap: 8px; align-items: flex-start; color: var(--ok); font-size: 13px; max-width: 340px; }
.footer-privacy svg { flex: none; margin-top: 3px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col a { color: var(--muted); font-size: 14px; }
.footer-col a:hover { color: var(--accent); }
.footer-langs { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--border); }
.footer-langs a { font-size: 13px; color: var(--muted); }
.footer-langs a.is-active { color: var(--accent); font-weight: 700; }
.footer-bottom { margin-top: 16px; font-size: 12.5px; color: var(--muted); }

@media (max-width: 560px) {
  .hero { padding: 36px 0 24px; }
  .logo-text { font-size: 19px; }
  .btn-row .btn { flex: 1 1 auto; justify-content: center; }
}