/* =========================================================================
   Video Thumbnail Generator — orient-luxury design system
   CIO Factory shared token prefix: --ol-
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Syne:wght@500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --ol-bg: #09080b;
  --ol-bg-raised: #121116;
  --ol-bg-panel: #16151b;
  --ol-border: rgba(201, 168, 76, 0.16);
  --ol-border-strong: rgba(201, 168, 76, 0.32);
  --ol-text: #ece7da;
  --ol-text-dim: #9b968f;
  --ol-text-faint: #625f5c;

  --ol-gold: #c9a84c;
  --ol-gold-dim: rgba(201, 168, 76, 0.55);
  --ol-gold-faint: rgba(201, 168, 76, 0.12);

  --ol-success: #7fae7f;
  --ol-error: #c9705a;
  --ol-warn: #c9a84c;

  --ol-font-display: 'Cinzel', serif;
  --ol-font-body: 'Cormorant Garamond', serif;
  --ol-font-ui: 'Syne', sans-serif;
  --ol-font-mono: 'IBM Plex Mono', monospace;

  --ol-radius: 2px;
  --ol-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

html[data-theme="light"] {
  --ol-bg: #f0ebe0;
  --ol-bg-raised: #e8e1d2;
  --ol-bg-panel: #ece5d7;
  --ol-border: rgba(138, 104, 32, 0.22);
  --ol-border-strong: rgba(138, 104, 32, 0.4);
  --ol-text: #2a241a;
  --ol-text-dim: #6b6155;
  --ol-text-faint: #948a7a;

  --ol-gold: #8a6820;
  --ol-gold-dim: rgba(138, 104, 32, 0.6);
  --ol-gold-faint: rgba(138, 104, 32, 0.1);

  --ol-shadow: 0 20px 50px rgba(90, 70, 30, 0.14);
}

/* --------------------------------------------------------------------- */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ol-bg);
  color: var(--ol-text);
  font-family: var(--ol-font-body);
  min-height: 100%;
}

body {
  position: relative;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

/* Grain texture overlay */
.ol-grain {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  mix-blend-mode: soft-light;
  opacity: 0.55;
}
html[data-theme="light"] .ol-grain { opacity: 0.3; }

a { color: var(--ol-gold); text-decoration: none; }

::selection { background: var(--ol-gold-faint); color: var(--ol-text); }

/* --------------------------------------------------------------------- */
/* Layout                                                                 */
/* --------------------------------------------------------------------- */

.ol-shell {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 28px 96px;
}

.ol-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 56px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--ol-border);
}

.ol-brand-eyebrow {
  font-family: var(--ol-font-ui);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ol-gold-dim);
  margin: 0 0 10px;
}

.ol-title {
  font-family: var(--ol-font-display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: 0.02em;
  margin: 0;
  color: var(--ol-text);
}

.ol-subtitle {
  font-family: var(--ol-font-body);
  font-style: italic;
  font-size: 18px;
  color: var(--ol-text-dim);
  margin: 10px 0 0;
  max-width: 46ch;
}

/* --------------------------------------------------------------------- */
/* Theme toggle                                                          */
/* --------------------------------------------------------------------- */

.ol-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--ol-border-strong);
  color: var(--ol-text-dim);
  font-family: var(--ol-font-ui);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 16px;
  border-radius: var(--ol-radius);
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
  flex-shrink: 0;
}

.ol-theme-toggle:hover {
  border-color: var(--ol-gold);
  color: var(--ol-gold);
  background: var(--ol-gold-faint);
}

.ol-theme-toggle svg { width: 14px; height: 14px; display: block; }

/* --------------------------------------------------------------------- */
/* Panels / cards                                                        */
/* --------------------------------------------------------------------- */

.ol-panel {
  background: var(--ol-bg-panel);
  border: 1px solid var(--ol-border);
  border-radius: var(--ol-radius);
  padding: 32px;
  margin-bottom: 28px;
  box-shadow: var(--ol-shadow);
}

.ol-panel-title {
  font-family: var(--ol-font-ui);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ol-gold);
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.ol-panel-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--ol-border);
}

/* --------------------------------------------------------------------- */
/* Source tabs                                                           */
/* --------------------------------------------------------------------- */

.ol-tabs {
  display: inline-flex;
  border: 1px solid var(--ol-border-strong);
  border-radius: var(--ol-radius);
  overflow: hidden;
  margin-bottom: 24px;
}

.ol-tab {
  font-family: var(--ol-font-ui);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 22px;
  background: transparent;
  color: var(--ol-text-dim);
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.ol-tab + .ol-tab { border-left: 1px solid var(--ol-border-strong); }

.ol-tab.is-active {
  background: var(--ol-gold-faint);
  color: var(--ol-gold);
}

/* --------------------------------------------------------------------- */
/* Form                                                                  */
/* --------------------------------------------------------------------- */

.ol-field { margin-bottom: 22px; }
.ol-field:last-child { margin-bottom: 0; }

.ol-label {
  display: block;
  font-family: var(--ol-font-ui);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ol-text-dim);
  margin-bottom: 9px;
}

.ol-hint {
  font-family: var(--ol-font-mono);
  font-size: 12px;
  color: var(--ol-text-faint);
  margin-top: 7px;
}

.ol-input,
.ol-select {
  width: 100%;
  background: var(--ol-bg-raised);
  border: 1px solid var(--ol-border);
  color: var(--ol-text);
  font-family: var(--ol-font-mono);
  font-size: 15px;
  padding: 13px 14px;
  border-radius: var(--ol-radius);
  outline: none;
  transition: border-color 0.2s ease;
}

.ol-input:focus,
.ol-select:focus {
  border-color: var(--ol-gold);
}

.ol-input::placeholder { color: var(--ol-text-faint); }

.ol-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

.ol-row-2 { grid-template-columns: 1fr 1fr; }

@media (max-width: 640px) {
  .ol-row { grid-template-columns: 1fr; }
}

.ol-file-drop {
  border: 1px dashed var(--ol-border-strong);
  border-radius: var(--ol-radius);
  padding: 28px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
  font-family: var(--ol-font-ui);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ol-text-dim);
}

.ol-file-drop.is-dragover,
.ol-file-drop:hover {
  border-color: var(--ol-gold);
  background: var(--ol-gold-faint);
  color: var(--ol-gold);
}

.ol-file-name {
  font-family: var(--ol-font-mono);
  font-size: 13px;
  color: var(--ol-gold);
  margin-top: 10px;
}

/* --------------------------------------------------------------------- */
/* Buttons                                                               */
/* --------------------------------------------------------------------- */

.ol-btn {
  font-family: var(--ol-font-ui);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 15px 30px;
  border-radius: var(--ol-radius);
  border: 1px solid var(--ol-gold);
  background: var(--ol-gold);
  color: #09080b;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.15s ease;
  font-weight: 600;
}

.ol-btn:hover { opacity: 0.88; }
.ol-btn:active { transform: translateY(1px); }
.ol-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.ol-btn-ghost {
  background: transparent;
  color: var(--ol-gold);
}

/* --------------------------------------------------------------------- */
/* Status / progress                                                     */
/* --------------------------------------------------------------------- */

.ol-status {
  display: none;
  align-items: center;
  gap: 14px;
  font-family: var(--ol-font-ui);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ol-text-dim);
  padding: 18px 0 0;
}

.ol-status.is-visible { display: flex; }

.ol-spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--ol-border-strong);
  border-top-color: var(--ol-gold);
  animation: ol-spin 0.9s linear infinite;
  flex-shrink: 0;
}

@keyframes ol-spin { to { transform: rotate(360deg); } }

.ol-status-state {
  color: var(--ol-gold);
}

.ol-status.is-failed .ol-status-state { color: var(--ol-error); }
.ol-status.is-completed .ol-status-state { color: var(--ol-success); }

.ol-error-box {
  display: none;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(201, 112, 90, 0.4);
  background: rgba(201, 112, 90, 0.08);
  color: var(--ol-error);
  font-family: var(--ol-font-mono);
  font-size: 13px;
  border-radius: var(--ol-radius);
}

.ol-error-box.is-visible { display: block; }

/* --------------------------------------------------------------------- */
/* Result                                                                */
/* --------------------------------------------------------------------- */

.ol-result {
  display: none;
}

.ol-result.is-visible { display: block; }

.ol-result-frame {
  border: 1px solid var(--ol-border-strong);
  border-radius: var(--ol-radius);
  overflow: hidden;
  background: #000;
  margin-bottom: 18px;
}

.ol-result-frame img {
  display: block;
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  background: #000;
}

.ol-result-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------- */
/* Signature element: the frame-strip filmstrip divider                  */
/* --------------------------------------------------------------------- */

.ol-filmstrip {
  display: flex;
  gap: 4px;
  margin: 8px 0 32px;
  opacity: 0.55;
}

.ol-filmstrip span {
  flex: 1;
  height: 3px;
  background: var(--ol-gold);
  opacity: 0.25;
  border-radius: 1px;
}

.ol-filmstrip span:nth-child(3n) { opacity: 0.55; }

/* --------------------------------------------------------------------- */
/* Toast                                                                 */
/* --------------------------------------------------------------------- */

.ol-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  z-index: 1000;
  background: var(--ol-bg-raised);
  border: 1px solid var(--ol-gold);
  color: var(--ol-text);
  font-family: var(--ol-font-ui);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 13px 22px;
  border-radius: var(--ol-radius);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  box-shadow: var(--ol-shadow);
}

.ol-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --------------------------------------------------------------------- */
/* Footer                                                                */
/* --------------------------------------------------------------------- */

.ol-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--ol-border);
  font-family: var(--ol-font-mono);
  font-size: 12px;
  color: var(--ol-text-faint);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 640px) {
  .ol-header { flex-direction: column; }
}