/*
 * Oliver Dark UI — "Dark Command Center" + Light "Warm Stone"
 * Dark theme is the default. Light activates via html[data-theme="light"].
 * Tokens + components from the oliver-dark-ui skill, plus app-specific
 * styles for the Topaz Video Scaler (sliders, progress, dropzone).
 */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,600;0,700;0,800;0,900;1,700&family=Figtree:wght@300;400;500;600&family=JetBrains+Mono:ital,wght@0,400;0,500;1,400&display=swap');

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
ul, ol { list-style: none; }

/* ── Tokens — Dark (default) ── */
:root {
  color-scheme: dark;

  --bg:        #0c0a09;
  --surface:   #161412;
  --surface-2: #1c1917;
  --surface-3: #292524;

  --border:        rgba(255,255,255,.14);
  --border-subtle: rgba(255,255,255,.09);

  --accent:        #fbbf24;
  --accent-bright: #f59e0b;
  --accent-glow:   rgba(251,191,36,.25);
  --accent-dim:    rgba(251,191,36,.1);

  --success:      #4ade80;
  --success-dim:  rgba(74,222,128,.1);
  --success-glow: rgba(74,222,128,.2);
  --error:        #f87171;
  --error-dim:    rgba(248,113,113,.1);
  --error-glow:   rgba(248,113,113,.2);
  --warning:      #fbbf24;
  --warning-dim:  rgba(251,191,36,.1);
  --warning-glow: rgba(251,191,36,.2);
  --info:         #60a5fa;
  --info-dim:     rgba(96,165,250,.1);
  --info-glow:    rgba(96,165,250,.2);

  --text:       #f0edea;
  --text-muted: #b8b2ac;
  --text-dim:   #8a8278;

  --on-accent: #1c1917;

  --font-sans:    'Figtree', system-ui, sans-serif;
  --font-display: 'Montserrat', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  --r-sm: 4px;
  --r:    8px;
  --r-lg: 12px;
  --r-xl: 16px;

  --shadow-xs: 0 1px 4px rgba(0,0,0,.5);
  --shadow:    0 2px 8px rgba(0,0,0,.5), 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 4px 20px rgba(0,0,0,.6), 0 2px 6px rgba(0,0,0,.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.7), 0 8px 20px rgba(0,0,0,.5);

  --grid-line: rgba(255,255,255,.025);
  --dot-color: rgba(255,255,255,.035);

  --overlay-bg: rgba(0,0,0,.7);

  --t: 150ms ease;
}

/* ── Light Theme ── */
html[data-theme="light"] {
  color-scheme: light;

  --bg:        #faf8f5;
  --surface:   #ffffff;
  --surface-2: #f5f2ee;
  --surface-3: #ede9e4;

  --border:        rgba(0,0,0,.12);
  --border-subtle: rgba(0,0,0,.07);

  --accent:        #d97706;
  --accent-bright: #b45309;
  --accent-glow:   rgba(217,119,6,.2);
  --accent-dim:    rgba(217,119,6,.08);

  --success:      #16a34a;
  --success-dim:  rgba(22,163,74,.08);
  --success-glow: rgba(22,163,74,.15);
  --error:        #dc2626;
  --error-dim:    rgba(220,38,38,.08);
  --error-glow:   rgba(220,38,38,.2);
  --warning:      #d97706;
  --warning-dim:  rgba(217,119,6,.08);
  --warning-glow: rgba(217,119,6,.2);
  --info:         #2563eb;
  --info-dim:     rgba(37,99,235,.08);
  --info-glow:    rgba(37,99,235,.2);

  --text:       #1c1a17;
  --text-muted: #6b6560;
  --text-dim:   #9c948d;

  --shadow-xs: 0 1px 3px rgba(0,0,0,.08);
  --shadow:    0 2px 8px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.12), 0 8px 20px rgba(0,0,0,.08);

  --grid-line: rgba(0,0,0,.04);
  --dot-color: rgba(0,0,0,.04);

  --overlay-bg: rgba(0,0,0,.45);

  -webkit-font-smoothing: auto;
  -moz-osx-font-smoothing: auto;
}

/* ── Base ── */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 250ms ease, color 250ms ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; transition: opacity var(--t); }
a:hover { opacity: 0.8; }

code, pre, kbd { font-family: var(--font-mono); font-size: 0.875em; }

.font-mono { font-family: var(--font-mono); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }

/* ── Page background (dot-grid + ambient amber glow) ── */
.shell-bg {
  background:
    radial-gradient(ellipse 60% 40% at 75% 10%, rgba(251,191,36,.05) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 20% 90%, rgba(251,191,36,.04) 0%, transparent 55%),
    radial-gradient(circle at 1px 1px, var(--dot-color) 1px, transparent 0);
  background-size: auto, auto, 28px 28px;
  background-color: var(--bg);
  background-attachment: fixed;
}
html[data-theme="light"] .shell-bg {
  background:
    radial-gradient(ellipse 60% 40% at 75% 10%, rgba(217,119,6,.03) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 20% 90%, rgba(217,119,6,.02) 0%, transparent 55%),
    radial-gradient(circle at 1px 1px, var(--dot-color) 1px, transparent 0);
  background-size: auto, auto, 28px 28px;
  background-color: var(--bg);
  background-attachment: fixed;
}

/* ── Layout ── */
.page { max-width: 760px; margin: 0 auto; padding: 32px 24px 64px; }

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-icon {
  width: 44px; height: 44px; border-radius: 10px;
  object-fit: contain; flex-shrink: 0; padding: 6px;
  background: var(--surface-2);
  border: 1px solid var(--accent-glow);
  box-shadow: 0 0 16px var(--accent-dim);
}
.page-title { font-size: 1.5rem; font-family: var(--font-display); font-weight: 800; }
.page-subtitle {
  font-size: 0.6875rem; color: var(--text-dim); margin-top: 3px;
  font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.12em;
}

/* ── Card ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow);
}

/* ── Forms ── */
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }

.form-label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
}

.input, .textarea, .select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  padding: 10px 12px;
  transition: border-color var(--t), box-shadow var(--t);
  width: 100%;
  outline: none;
  box-shadow: var(--shadow-xs);
}
.select { appearance: none; -webkit-appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238a8278' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px;
}
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.input::placeholder { color: var(--text-dim); }

/* File dropzone */
.file-input {
  width: 100%;
  padding: 22px 16px;
  border: 1.5px dashed var(--border);
  border-radius: var(--r);
  background: var(--surface-2);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: border-color var(--t), background var(--t);
}
.file-input:hover { border-color: var(--accent); background: var(--accent-dim); }
.file-input::file-selector-button {
  margin-right: 14px; padding: 7px 14px;
  border: 1px solid var(--accent); border-radius: var(--r-sm);
  background: var(--accent-dim); color: var(--accent);
  font-family: var(--font-sans); font-weight: 600; font-size: 0.8125rem;
  cursor: pointer; transition: all var(--t);
}
.file-input::file-selector-button:hover { background: var(--accent); color: var(--on-accent); }

/* Info panel (video dimensions) */
.info-panel {
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  display: none;
}
.info-panel .val { color: var(--accent); }

/* ── Settings grid (sliders) ── */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  background: var(--surface-2);
  padding: 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r);
}
.setting-item { display: flex; flex-direction: column; gap: 10px; }
.setting-head { display: flex; align-items: center; justify-content: space-between; }
.setting-item .form-label { margin: 0; }
.setting-value {
  font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 500;
  color: var(--accent); background: var(--accent-dim);
  border: 1px solid var(--accent-glow); border-radius: var(--r-sm);
  padding: 1px 8px; min-width: 38px; text-align: center;
}

.slider {
  width: 100%; height: 6px;
  -webkit-appearance: none; appearance: none;
  background: var(--surface-3);
  border-radius: 4px; outline: none; cursor: pointer;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px;
  background: linear-gradient(to bottom, #fbbf24, #d97706);
  border: 2px solid var(--surface);
  border-radius: 50%; cursor: pointer;
  box-shadow: 0 0 0 1px var(--accent-glow), 0 1px 3px rgba(0,0,0,.4);
  transition: box-shadow var(--t);
}
.slider::-webkit-slider-thumb:hover { box-shadow: 0 0 0 4px var(--accent-dim), 0 1px 3px rgba(0,0,0,.4); }
.slider::-moz-range-thumb {
  width: 18px; height: 18px;
  background: linear-gradient(to bottom, #fbbf24, #d97706);
  border: 2px solid var(--surface);
  border-radius: 50%; cursor: pointer;
  box-shadow: 0 0 0 1px var(--accent-glow), 0 1px 3px rgba(0,0,0,.4);
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px;
  border-radius: var(--r);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 0.875rem; font-weight: 600;
  cursor: pointer; transition: all var(--t);
  white-space: nowrap; text-decoration: none; line-height: 1.4; outline: none;
}
.btn:disabled { opacity: 0.38; cursor: not-allowed; pointer-events: none; }
.btn:focus-visible { box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent); }

.btn-primary {
  background: linear-gradient(to bottom, #fbbf24, #d97706);
  color: var(--on-accent);
  border-color: #d97706;
  box-shadow: 0 1px 2px rgba(217,119,6,.25), inset 0 1px 0 rgba(255,255,255,.25);
  font-weight: 700;
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(to bottom, #f59e0b, #b45309);
  border-color: #b45309;
  box-shadow: 0 3px 10px rgba(217,119,6,.35), 0 1px 2px rgba(217,119,6,.2);
  transform: translateY(-1px);
}
.btn-primary:active:not(:disabled) { transform: translateY(0); }

.btn-ghost { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn-ghost:hover:not(:disabled) { color: var(--text); background: var(--surface-2); }

.btn-lg { padding: 12px 24px; font-size: 0.9375rem; width: 100%; }

/* ── Theme toggle ── */
.theme-toggle {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer; font-size: 1rem;
  transition: all var(--t); flex-shrink: 0;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

/* ── Estimate card ── */
.estimate {
  margin: 22px 0;
  padding: 18px 20px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-glow);
  border-radius: var(--r);
  display: none;
}
.estimate h3 {
  font-size: 0.6875rem; font-family: var(--font-mono); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent);
  margin-bottom: 12px;
}
.estimate-row { display: flex; justify-content: space-between; align-items: center; padding: 4px 0; }
.estimate-row .label { color: var(--text-muted); font-size: 0.875rem; }
.estimate-row .val { font-family: var(--font-mono); font-weight: 500; color: var(--text); }

/* ── Progress ── */
.progress-container { display: none; margin-top: 26px; }
.progress-bar {
  width: 100%; height: 10px;
  background: var(--surface-3);
  border-radius: 100px; overflow: hidden;
  border: 1px solid var(--border-subtle);
}
.progress-bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(to right, #d97706, #fbbf24);
  border-radius: 100px;
  transition: width 0.4s ease;
  box-shadow: 0 0 12px var(--accent-glow);
}
.status {
  margin-top: 14px; text-align: center;
  color: var(--text-muted); font-family: var(--font-mono); font-size: 0.8125rem;
}

/* ── Sandbox banner ── */
.sandbox-banner {
  background: var(--error-dim);
  border-bottom: 1px solid var(--error-glow);
  color: var(--error);
  padding: 9px 16px; text-align: center;
  font-family: var(--font-mono); font-size: 0.75rem;
  letter-spacing: 0.04em;
}
.sandbox-banner a { color: var(--error); text-decoration: underline; font-weight: 600; }

/* ── Status dot ── */
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; display: inline-block; }
.dot-live { background: var(--success); box-shadow: 0 0 0 3px var(--success-dim); animation: dotPulseLive 1.8s ease-in-out infinite; }

/* ── Auth bar ── */
.auth-bar { display: flex; justify-content: flex-end; padding: 10px 24px 0; max-width: 760px; margin: 0 auto; }

/* ── Animations ── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
@keyframes dotPulseLive {
  0%, 100% { box-shadow: 0 0 0 3px var(--success-dim), 0 0 0 0 rgba(21,128,61,.4); }
  50%      { box-shadow: 0 0 0 3px var(--success-dim), 0 0 0 6px transparent; }
}
.fade-in { animation: fadeIn 0.3s ease both; }

@media (max-width: 560px) {
  .settings-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}