:root {
  color-scheme: dark;
  --bg: #07101b;
  --panel: rgba(10, 21, 35, 0.94);
  --panel-soft: rgba(17, 31, 49, 0.78);
  --line: rgba(130, 176, 221, 0.22);
  --text: #edf6ff;
  --muted: #91a7bc;
  --accent: #24a9ff;
  --accent-rgb: 36, 169, 255;
  --secondary: #c85ab6;
  --secondary-rgb: 200, 90, 182;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; min-height: 100vh; color: var(--text); background: radial-gradient(circle at 18% 12%, rgba(var(--accent-rgb), 0.15), transparent 32%), radial-gradient(circle at 82% 82%, rgba(var(--secondary-rgb), 0.1), transparent 30%), var(--bg); }
button, input, textarea { font: inherit; }
.ai-settings-shell { width: min(1480px, calc(100% - 40px)); margin: 0 auto; padding: 32px 0 48px; }
.ai-settings-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.ai-settings-header h1, .settings-panel-heading h2, .settings-side-panel h2 { margin: 0; }
.ai-settings-header h1 { font-size: clamp(34px, 5vw, 64px); letter-spacing: -0.045em; }
.ai-settings-header p:not(.eyebrow) { max-width: 720px; margin: 9px 0 0; color: var(--muted); }
.eyebrow { margin: 0 0 7px; color: var(--accent); font-size: 11px; font-weight: 900; letter-spacing: 0.16em; text-transform: uppercase; }
.profile-toolbar, .settings-panel, .settings-side-panel { border: 1px solid var(--line); border-radius: 16px; background: var(--panel); box-shadow: 0 24px 70px rgba(0, 0, 0, 0.32); }
.profile-toolbar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 0.38fr); gap: 18px; padding: 18px; margin-bottom: 20px; }
.deck-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.deck-tab { display: grid; grid-template-columns: 42px 1fr; align-items: center; gap: 10px; min-height: 72px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 11px; color: var(--text); background: var(--panel-soft); text-align: left; cursor: pointer; }
.deck-tab img { width: 42px; height: 58px; border-radius: 5px; object-fit: cover; }
.deck-tab strong, .deck-tab span { display: block; }
.deck-tab span { margin-top: 3px; color: var(--muted); font-size: 11px; }
.deck-tab.active { border-color: rgba(var(--accent-rgb), 0.78); background: linear-gradient(145deg, rgba(var(--accent-rgb), 0.18), rgba(var(--secondary-rgb), 0.08)); box-shadow: 0 0 28px rgba(var(--accent-rgb), 0.12); }
.profile-summary { display: grid; align-content: center; gap: 6px; padding: 10px 14px; border-left: 1px solid var(--line); }
.profile-summary strong { font-size: 18px; }
.profile-summary span { color: var(--muted); font-size: 13px; }
.settings-workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(290px, 0.32fr); gap: 20px; }
.settings-panel, .settings-side-panel { padding: 22px; }
.settings-panel-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 20px; }
.profile-state { padding: 7px 10px; border: 1px solid rgba(var(--accent-rgb), 0.32); border-radius: 999px; color: var(--accent); background: rgba(var(--accent-rgb), 0.08); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.slider-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.setting-control { display: grid; gap: 9px; padding: 15px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-soft); }
.setting-control-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.setting-control-head strong { font-size: 14px; }
.setting-value { min-width: 42px; padding: 4px 7px; border-radius: 6px; color: var(--text); background: rgba(var(--accent-rgb), 0.16); text-align: center; font-variant-numeric: tabular-nums; font-weight: 900; }
.setting-control p { min-height: 34px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.4; }
.setting-control input[type="range"] { width: 100%; accent-color: var(--accent); cursor: pointer; }
.range-labels { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; }
.settings-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.settings-actions.stacked { display: grid; grid-template-columns: 1fr 1fr; margin-top: 10px; }
.settings-button { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 8px; color: var(--text); background: rgba(255, 255, 255, 0.045); text-decoration: none; font-weight: 800; cursor: pointer; }
.settings-button.primary { border-color: rgba(var(--accent-rgb), 0.7); background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.32), rgba(var(--secondary-rgb), 0.2)); }
.settings-button.danger { border-color: rgba(255, 89, 89, 0.36); color: #ffb1b1; }
.settings-side-panel p:not(.eyebrow) { color: var(--muted); line-height: 1.5; }
#profileJson { width: 100%; min-height: 290px; resize: vertical; padding: 12px; border: 1px solid var(--line); border-radius: 10px; color: #dceeff; background: #050b12; font: 12px/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; }
.settings-status { min-height: 22px; margin: 12px 0 0; color: var(--accent) !important; font-weight: 700; }
.settings-note { margin-top: 18px; padding: 14px; border: 1px solid rgba(var(--secondary-rgb), 0.25); border-radius: 10px; background: rgba(var(--secondary-rgb), 0.055); }
.settings-note p { margin: 6px 0 0; font-size: 12px; }
@media (max-width: 980px) { .profile-toolbar, .settings-workspace { grid-template-columns: 1fr; } .profile-summary { border-top: 1px solid var(--line); border-left: 0; } }
@media (max-width: 720px) { .ai-settings-shell { width: min(100% - 24px, 1480px); padding-top: 20px; } .ai-settings-header { align-items: stretch; flex-direction: column; } .deck-tabs, .slider-grid { grid-template-columns: 1fr; } .settings-actions.stacked { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }