:root,
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #070b16;
  --bg-glow: radial-gradient(900px 420px at 50% -10%, rgba(99, 102, 241, 0.35), transparent 60%),
    radial-gradient(700px 380px at 80% 0%, rgba(56, 189, 248, 0.16), transparent 55%);
  --header: rgba(8, 12, 24, 0.82);
  --line: rgba(148, 163, 184, 0.16);
  --text: #e8eefc;
  --muted: #93a0b8;
  --card: rgba(15, 23, 42, 0.78);
  --card-border: rgba(148, 163, 184, 0.18);
  --field: rgba(8, 12, 24, 0.55);
  --accent: #7c8cff;
  --accent-2: #22d3ee;
  --accent-ink: #fff;
  --chip: rgba(15, 23, 42, 0.8);
  --ok: #4ade80;
  --ok-bg: rgba(22, 163, 74, 0.16);
  --warn: #fbbf24;
  --danger: #fb7185;
  --track: rgba(148, 163, 184, 0.25);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --nav: rgba(15, 23, 42, 0.9);
  --soft: rgba(255, 255, 255, 0.04);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f7fb;
  --bg-glow: radial-gradient(800px 320px at 50% -10%, rgba(99, 102, 241, 0.18), transparent 60%);
  --header: rgba(255, 255, 255, 0.9);
  --line: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --muted: #64748b;
  --card: #fff;
  --card-border: rgba(15, 23, 42, 0.08);
  --field: #f8fafc;
  --accent: #4f46e5;
  --accent-2: #0891b2;
  --accent-ink: #fff;
  --chip: #fff;
  --ok: #15803d;
  --ok-bg: #ecfdf3;
  --warn: #b45309;
  --danger: #be123c;
  --track: #e2e8f0;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  --nav: #fff;
  --soft: #f8fafc;
}

html[data-theme="sand"] {
  color-scheme: light;
  --bg: #f6f1e8;
  --bg-glow: none;
  --header: rgba(255, 250, 242, 0.92);
  --line: rgba(62, 44, 28, 0.1);
  --text: #2c2118;
  --muted: #7c6a58;
  --card: #fffaf3;
  --card-border: rgba(62, 44, 28, 0.12);
  --field: #fff;
  --accent: #b45309;
  --accent-2: #c2410c;
  --accent-ink: #fff;
  --chip: #fffaf3;
  --ok: #3f6212;
  --ok-bg: #f3f8e8;
  --warn: #9a3412;
  --danger: #9f1239;
  --track: #eadfce;
  --shadow: 0 16px 36px rgba(62, 44, 28, 0.08);
  --nav: #fffaf3;
  --soft: #f8f1e6;
}

html[data-theme="slate"] {
  color-scheme: dark;
  --bg: #0f172a;
  --bg-glow: none;
  --header: rgba(15, 23, 42, 0.92);
  --line: rgba(226, 232, 240, 0.12);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --card: #1e293b;
  --card-border: rgba(226, 232, 240, 0.12);
  --field: #0f172a;
  --accent: #38bdf8;
  --accent-2: #818cf8;
  --accent-ink: #082f49;
  --chip: #1e293b;
  --ok: #4ade80;
  --ok-bg: rgba(22, 163, 74, 0.16);
  --warn: #fbbf24;
  --danger: #fb7185;
  --track: rgba(148, 163, 184, 0.28);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  --nav: #1e293b;
  --soft: rgba(255, 255, 255, 0.04);
}

html[data-theme="forest"] {
  color-scheme: dark;
  --bg: #07140f;
  --bg-glow: radial-gradient(700px 300px at 50% -10%, rgba(16, 185, 129, 0.2), transparent 60%);
  --header: rgba(7, 20, 15, 0.9);
  --line: rgba(167, 243, 208, 0.12);
  --text: #ecfdf5;
  --muted: #99b5a8;
  --card: rgba(6, 40, 28, 0.8);
  --card-border: rgba(167, 243, 208, 0.14);
  --field: rgba(4, 20, 14, 0.6);
  --accent: #34d399;
  --accent-2: #6ee7b7;
  --accent-ink: #052e16;
  --chip: rgba(6, 40, 28, 0.8);
  --ok: #86efac;
  --ok-bg: rgba(22, 163, 74, 0.18);
  --warn: #fbbf24;
  --danger: #fb7185;
  --track: rgba(167, 243, 208, 0.2);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
  --nav: rgba(6, 40, 28, 0.9);
  --soft: rgba(255, 255, 255, 0.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Plus Jakarta Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
  background-image: var(--bg-glow);
  background-attachment: fixed;
}
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 22px;
  background: var(--header);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.brand svg { width: 28px; height: 28px; color: var(--accent-2); }
.main-nav {
  display: flex;
  gap: 6px;
  margin: 0 auto;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--nav);
}
.main-nav button, .account > button, .theme-pick > button, .panel-actions button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 600;
}
.main-nav button svg { width: 16px; height: 16px; }
.main-nav button.is-current, .account > button:hover, .panel-actions button:hover, .theme-pick > button:hover {
  background: var(--soft);
  color: var(--text);
}
.theme-pick > button svg { width: 16px; height: 16px; }
.theme-pick > button svg { width: 16px; height: 16px; }
.header-tools { display: flex; justify-content: flex-end; align-items: center; gap: 8px; margin-left: auto; }
.account { display: flex; align-items: center; gap: 4px; }
.account > button, #who { white-space: nowrap; }
.account[hidden] { display: none; }
#who { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; padding: 0 6px; }
.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}
.theme-pick { position: relative; }
.theme-menu, .pop-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 30;
}
.theme-menu button, .pop-menu button {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  border-radius: 10px;
  padding: 8px 10px;
  color: var(--text);
}
.theme-menu button:hover, .pop-menu button:hover { background: var(--soft); }
.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 8px; }
.swatch.light { background: #fff; border: 1px solid #cbd5e1; }
.swatch.dark { background: #111827; }
.swatch.sand { background: #d6b48c; }
.swatch.slate { background: #64748b; }
.swatch.forest { background: #166534; }

#gate, #app { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 64px; }
#gate { max-width: 460px; }
.hero {
  text-align: center;
  margin-bottom: 28px;
}
.hero-person { display: none; }
.hero h1, #gate h1, #sheet-title {
  margin: 0;
  font-size: clamp(36px, 5vw, 56px);
  letter-spacing: -0.045em;
  line-height: 1.05;
}
.hero h1 span {
  background: linear-gradient(90deg, #818cf8, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede { color: var(--muted); font-size: 18px; margin: 10px 0 0; }
.promises {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
}
.promises li::before { content: "✓ "; color: var(--ok); font-weight: 700; }

.stage {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: stretch;
}
.panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  min-height: 520px;
  overflow: hidden;
}
.panel-output { border-color: rgba(45, 212, 191, 0.45); box-shadow: 0 0 0 1px rgba(45, 212, 191, 0.12), var(--shadow); }
.panel-head, .panel-foot { padding: 16px 16px 12px; }
.panel-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.panel-side { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.panel-title { display: flex; gap: 10px; }
.panel-title h2 { margin: 0; font-size: 16px; }
.panel-title p { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.panel-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(99, 102, 241, 0.16);
  color: #a5b4fc;
}
.panel-icon svg { width: 18px; height: 18px; }
.panel-icon.spark { background: rgba(34, 211, 238, 0.14); color: #67e8f9; }
.panel-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.panel-actions button, #copy, #download, #share, #paste, #clear, #sample {
  border: 1px solid var(--line) !important;
  background: var(--field) !important;
  color: var(--text) !important;
  border-radius: 10px !important;
  padding: 7px 10px !important;
  font-size: 13px;
  font-weight: 600;
}
.panel-actions button:disabled { opacity: 0.45; cursor: default; }
.menu-wrap { position: relative; }
textarea {
  flex: 1;
  width: calc(100% - 28px);
  margin: 0 14px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  resize: none;
  background: var(--field);
  padding: 14px;
  line-height: 1.55;
  min-height: 240px;
  outline: none;
}
textarea::placeholder { color: var(--muted); }
.panel-foot { border-top: 1px solid var(--line); }
#input-count, #output-count { color: var(--muted); font-size: 13px; }
.slider-block { margin-top: 12px; }
.slider-label { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; }
.help {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  padding: 0;
}
#strength {
  width: 100%;
  margin: 10px 0 4px;
  accent-color: var(--accent);
}
.stops { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.stops button {
  border: 0;
  background: transparent;
  text-align: center;
  color: var(--muted);
  padding: 4px;
}
.stops button strong { display: block; font-size: 13px; }
.stops button small { display: block; font-size: 11px; font-weight: 500; }
.stops button.is-current { color: var(--text); }
.go {
  align-self: center;
  width: 54px;
  height: 54px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #6366f1, #22d3ee);
  box-shadow: 0 10px 24px rgba(99, 102, 241, 0.35);
  display: grid;
  place-items: center;
}
.go svg { width: 22px; height: 22px; }
.go:disabled { opacity: 0.4; cursor: default; }
.go.is-stop { background: #be123c; }
.go.is-stop svg { display: none; }
.go.is-stop::after {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: #fff;
}
.progress { padding: 0 16px; }
.progress-track { height: 4px; background: var(--track); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.score-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.score-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.score-main, .score-tags span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--field);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
}
.score-main strong { display: block; font-size: 13px; }
.score-main span, .score-tags span { color: var(--muted); }
.score-mark {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--ok-bg);
  color: var(--ok);
  display: grid;
  place-items: center;
  font-size: 12px;
}
.score-mark::before { content: "✓"; }
.score-row.fail .score-mark { background: rgba(251, 191, 36, 0.15); color: var(--warn); }
.score-row.fail .score-mark::before { content: "!"; }
.banner {
  margin: 12px 0 0;
  color: var(--danger);
  font-size: 14px;
}
.examples { margin-top: 28px; }
.examples-head h2 { margin: 0; font-size: 18px; }
.examples-head p { margin: 4px 0 12px; color: var(--muted); }
.example-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.example-row button {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  border: 1px solid var(--card-border);
  background: var(--card);
  border-radius: 16px;
  padding: 14px;
}
.example-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(99, 102, 241, 0.16);
  color: #a5b4fc;
  flex: none;
}
.example-icon svg { width: 18px; height: 18px; }
.example-row strong { display: block; }
.example-row button > span span { color: var(--muted); font-size: 13px; }
.chevron { margin-left: auto; color: var(--muted); font-size: 22px; line-height: 1; }
.example-row button:hover { border-color: var(--accent); }

.sheet { margin-bottom: 8px; }
.people-card, .auth-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 22px;
  padding: 20px;
  box-shadow: var(--shadow);
  margin-top: 16px;
}
.people-card h2 { margin: 18px 0 8px; font-size: 18px; }
.hint, .people-intro, .empty-note { color: var(--muted); }
label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 12px; }
label input {
  display: block;
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--line);
  background: var(--field);
  border-radius: 12px;
  padding: 12px;
}
.primary {
  border: 0;
  background: linear-gradient(135deg, #6366f1, #22d3ee);
  color: #fff;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 700;
}
.switch-line { color: var(--muted); }
.switch-line button { border: 0; background: none; color: var(--accent-2); font-weight: 700; padding: 0; }
.form-error { color: var(--danger); }
.form-ok { color: var(--ok); }
.secret, .sample-code, .log-detail pre {
  white-space: pre-wrap;
  background: var(--field);
  border-radius: 12px;
  padding: 12px;
  overflow: auto;
}
.lang-switch { display: flex; gap: 6px; }
.lang-switch button { border: 1px solid var(--line); background: transparent; border-radius: 999px; padding: 6px 10px; }
.lang-switch button.is-current { background: var(--soft); }
.key-form { display: flex; gap: 10px; align-items: end; }
.key-form label { flex: 1; }
.person, .log-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.person span, .log-meta, .log-preview { display: block; color: var(--muted); font-size: 13px; }
.status { font-size: 12px; font-weight: 700; text-transform: capitalize; }
.status.approved { color: var(--ok); }
.status.pending, .status.denied, .status.revoked { color: var(--warn); }
.person-actions { display: flex; gap: 8px; }
.allow, .deny, #key-copy, #sample-copy {
  border: 1px solid var(--line);
  background: var(--field);
  border-radius: 10px;
  padding: 8px 10px;
}
.popover {
  position: fixed;
  z-index: 40;
  max-width: 260px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 10px 12px;
  box-shadow: var(--shadow);
  font-size: 13px;
}
[hidden] { display: none !important; }

@media (max-width: 980px) {
  .site-header { flex-wrap: wrap; }
  .main-nav { margin: 0; order: 3; width: 100%; }
  .header-tools { margin-left: 0; flex-wrap: wrap; }
  .stage, .example-row { grid-template-columns: 1fr; }
  .go { justify-self: center; }
}