@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=JetBrains+Mono:wght@400;600&family=Noto+Sans+KR:wght@300;400;500&display=swap');

:root {
  --dv-bg-outer: transparent;
  --dv-bg-shell: var(--bg-card, #ffffff);
  --dv-bg-header: var(--bg-panel, #f8fafc);
  --dv-bg-canvas: var(--bg-soft, #eef1f4);
  --dv-bg-page: #ffffff;
  --dv-border: rgba(75,85,99,0.18);
  --dv-border-glow: rgba(47,93,138,0.26);
  --dv-accent: var(--accent, #2f5d8a);
  --dv-accent-dim: rgba(47,93,138,0.12);
  --dv-accent-hover: var(--accent, #2f5d8a);
  --dv-text-primary: var(--text, #1f2937);
  --dv-text-secondary: var(--text-soft, #4b5563);
  --dv-text-muted: var(--text-dim, #6b7280);
  --dv-nav-btn-bg: rgba(255,255,255,0.92);
  --dv-shadow-deep: 0 20px 44px rgba(17,24,39,0.12);
  --dv-shadow-card: 0 6px 24px rgba(17,24,39,0.08);
  --dv-radius: 16px;
  --dv-radius-sm: 10px;
  --dv-transition: 0.2s cubic-bezier(0.4,0,0.2,1);
}

.dv-wrapper {
  width: 100%;
  box-sizing: border-box;
  background: var(--dv-bg-shell);
  border: 1px solid var(--dv-border);
  border-radius: var(--dv-radius);
  overflow: visible;
  box-shadow: var(--dv-shadow-deep), 0 0 0 1px rgba(255,255,255,0.2) inset;
  display: flex;
  flex-direction: column;
  font-family: 'Noto Sans KR', sans-serif;
  position: relative;
}

.dv-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 54px;
  background: var(--dv-bg-header);
  border-bottom: 1px solid var(--dv-border);
  flex-shrink: 0;
  gap: 16px;
  border-radius: var(--dv-radius) var(--dv-radius) 0 0;
}

.dv-description {
  font-family: 'DM Serif Display', serif;
  font-size: 0.98rem;
  color: var(--dv-accent);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 45%;
  flex-shrink: 0;
}

.dv-page-control {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}

.dv-page-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--dv-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.dv-page-input-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--dv-border);
  border-radius: var(--dv-radius-sm);
  padding: 4px 10px;
  transition: border-color var(--dv-transition), background-color var(--dv-transition);
}

.dv-page-input-wrap:focus-within {
  border-color: var(--dv-border-glow);
  background: var(--dv-accent-dim);
}

.dv-page-input {
  background: transparent;
  border: none;
  outline: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dv-text-primary);
  width: 3ch;
  text-align: center;
  -moz-appearance: textfield;
}

.dv-page-input::-webkit-outer-spin-button,
.dv-page-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.dv-page-sep,
.dv-page-total {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--dv-text-muted);
}

.dv-canvas-area {
  flex: 1;
  position: relative;
  background: var(--dv-bg-canvas);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 26px;
  box-sizing: border-box;
  min-height: 340px;
}

.dv-canvas-area::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.38) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.28;
  pointer-events: none;
}

.dv-page-display {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--dv-shadow-card), 0 0 0 1px rgba(255,255,255,0.65);
  border-radius: 8px;
  overflow: hidden;
  background: var(--dv-bg-page);
  transition: opacity var(--dv-transition);
}

.dv-page-display.dv-fade {
  opacity: 0;
}

.dv-page-display canvas,
.dv-page-display img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: calc(100vh - 230px);
  object-fit: contain;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.dv-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 10;
  background: color-mix(in srgb, var(--dv-bg-canvas) 90%, transparent);
  border-radius: 8px;
}

.dv-loading-ring {
  width: 36px;
  height: 36px;
  border: 2px solid color-mix(in srgb, var(--dv-accent) 18%, transparent);
  border-top-color: var(--dv-accent);
  border-radius: 50%;
  animation: dv-spin 0.9s linear infinite;
}

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

.dv-loading-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--dv-text-muted);
  letter-spacing: 0.1em;
}

.dv-nav {
  position: absolute;
  padding: 0;
  top: 50%;
  z-index: 20;
  width: 46px;
  height: 46px;
  border: 1px solid var(--dv-border);
  border-radius: 50%;
  background: var(--dv-nav-btn-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--dv-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--dv-transition), box-shadow var(--dv-transition), color var(--dv-transition), border-color var(--dv-transition), background-color var(--dv-transition);
  outline: none;
  font-size: 1.1rem;
  line-height: 1;
  user-select: none;
  box-shadow: 0 8px 20px rgba(17,24,39,0.08);
}

.dv-nav:hover:not(:disabled) {
  color: var(--dv-accent);
  border-color: var(--dv-border-glow);
  background: color-mix(in srgb, var(--dv-nav-btn-bg) 82%, var(--dv-accent) 18%);
  box-shadow: 0 10px 24px rgba(17,24,39,0.12);
}

.dv-nav:disabled {
  opacity: 0.28;
  cursor: not-allowed;
}

.dv-nav-prev {
  left: 0;
  transform: translate(-50%, -50%);
}

.dv-nav-next {
  right: 0;
  transform: translate(50%, -50%);
}

.dv-nav-prev:hover:not(:disabled) {
  transform: translate(-50%, -50%) scale(1.06);
}

.dv-nav-next:hover:not(:disabled) {
  transform: translate(50%, -50%) scale(1.06);
}

.dv-nav svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.dv-footer {
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  background: var(--dv-bg-header);
  border-top: 1px solid var(--dv-border);
  flex-shrink: 0;
  border-radius: 0 0 var(--dv-radius) var(--dv-radius);
}

.dv-thumb-strip {
  display: flex;
  gap: 6px;
  align-items: center;
  overflow-x: auto;
  scrollbar-width: none;
  max-width: 100%;
}

.dv-thumb-strip::-webkit-scrollbar { display: none; }

.dv-thumb-dot {
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--dv-text-muted);
  cursor: pointer;
  transition: all var(--dv-transition);
  border: none;
  padding: 0;
}

.dv-thumb-dot:hover { background: var(--dv-text-secondary); transform: scale(1.3); }
.dv-thumb-dot.active {
  background: var(--dv-accent);
  box-shadow: 0 0 8px color-mix(in srgb, var(--dv-accent) 45%, transparent);
  width: 18px;
  border-radius: 3px;
}

.dv-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 32px;
  color: var(--dv-text-muted);
  font-size: 0.82rem;
  text-align: center;
}

.dv-error-icon { font-size: 2rem; opacity: 0.5; }

@media (max-width: 720px) {
  .dv-header {
    padding: 10px 14px;
    height: auto;
    align-items: flex-start;
    flex-direction: column;
  }

  .dv-description {
    max-width: 100%;
  }

  .dv-page-control {
    margin-left: 0;
  }

  .dv-canvas-area {
    padding: 24px 14px;
  }

  .dv-nav {
    width: 42px;
    height: 42px;
  }
}

.dv-page-display video,
.dv-page-display iframe {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
}

.dv-page-display video {
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.dv-video-grid {
  width: 100%;
  display: grid;
  gap: 18px;
  justify-items: center;
  align-items: start;
}

.dv-video-grid.is-single {
  max-width: min(100%, 720px);
}

.dv-video-grid.is-dual {
  max-width: min(100%, 980px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dv-video-grid.has-one {
  grid-template-columns: minmax(0, 1fr);
  max-width: min(100%, 480px);
}

.dv-video-tile {
  width: 100%;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--dv-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(17,24,39,0.06);
}

.dv-video-player {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: min(calc(100vh - 230px), 840px);
  background: #000;
  object-fit: contain;
  image-rendering: auto;
}

.dv-video-grid.is-dual .dv-video-player {
  max-height: min(calc(100vh - 280px), 560px);
}

.dv-embed-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 360px;
  max-height: min(calc(100vh - 230px), 720px);
  background: #000;
}

.dv-video-grid.is-dual .dv-embed-frame {
  min-height: 240px;
  max-height: min(calc(100vh - 300px), 420px);
}

.dv-audio-grid {
  width: 100%;
  display: flex;
  justify-content: center;
}

.dv-audio-tile {
  position: relative;
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dv-audio-visual {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.dv-audio-toggle {
  position: relative;
  z-index: 2;
  padding: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid var(--dv-border);
  background: rgba(255,255,255,0.9);
  color: var(--dv-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(17,24,39,0.12);
  opacity: 0.85;
  transition: transform var(--dv-transition), opacity var(--dv-transition);
}

.dv-audio-toggle svg {
  width: 22px;
  height: 22px;
}

.dv-audio-tile.is-playing .dv-audio-toggle {
  opacity: 0.4;
}

.dv-audio-toggle:hover {
  opacity: 1;
  transform: scale(1.06);
}

.dv-audio-label {
  position: absolute;
  bottom: 10px;
  left: 0;
  right: 0;
  z-index: 2;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--dv-text-muted);
  pointer-events: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 12px;
}

.dv-audio-element {
  display: none;
}

.dv-link-card {
  width: 100%;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(247,249,252,0.96));
}

.dv-link-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--dv-text-muted);
}

.dv-link-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.7rem;
  color: var(--dv-text-primary);
}

.dv-link-copy,
.dv-link-url {
  color: var(--dv-text-secondary);
  line-height: 1.6;
  word-break: break-word;
}

.dv-link-url {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
}

.dv-link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--dv-border-glow);
  background: var(--dv-accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: transform var(--dv-transition), box-shadow var(--dv-transition), opacity var(--dv-transition);
}

.dv-link-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(17,24,39,0.12);
}

@media (max-width: 900px) {
  .dv-video-grid.is-dual {
    grid-template-columns: minmax(0, 1fr);
    max-width: min(100%, 720px);
  }
}