:root {
  color-scheme: light;
}

html, body {
  width: 100%;
  max-width: none !important;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0 !important;
  padding: 0;
  width: 100%;
  background: #f5e8c9;
  color: #3a3226;
  font-family: 'IM Fell DW Pica', Georgia, serif;
  overflow-x: hidden;
}

.app-frame {
  min-height: 100vh;
  width: 100%;
  max-width: none;
  display: flex;
  flex-direction: column;
  padding: clamp(1.2rem, 3vw, 2rem) 0 clamp(2rem, 5vw, 3.5rem);
  gap: clamp(2rem, 3vw, 3rem);
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 2rem;
  padding: 0 clamp(3rem, 8vw, 10rem);
}

.app-brand {
  font-size: clamp(1.05rem, 2.8vw, 1.4rem);
  letter-spacing: 0.04em;
}

.app-brand .brand-home {
  color: inherit;
  text-decoration: none;
}

.app-brand .divider {
  opacity: 0.5;
  margin: 0 0.35rem;
}

.app-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted rgba(107, 66, 38, 0.55);
}

.app-main {
  width: 100%;
  max-width: none;
  display: flex;
  flex-direction: column;
  gap: clamp(2.5rem, 6vw, 4rem);
}

.intro {
  width: 100%;
  max-width: none;
  font-size: 1.08rem;
  line-height: 1.6;
  padding: 0 clamp(3rem, 6vw, 12rem);
}

.intro h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2.4rem, 6.5vw, 3.6rem);
}

.experience {
  position: relative;
  border-radius: clamp(18px, 2.5vw, 28px);
  overflow: hidden;
  background: transparent;
  box-shadow: none;
  width: 100%;
}

.experience-canvas {
  position: relative;
  width: 100%;
  min-height: clamp(580px, 85vh, 1040px);
}

#bookshelf-canvas {
  position: relative;
  width: 100%;
  height: 100%;
  margin: 0;
}

#bookshelf-canvas canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.detail-overlay {
  position: absolute;
  top: 50%;
  bottom: auto;
  right: clamp(3.2rem, 5.5vw, 6rem);
  width: clamp(300px, 26vw, 360px);
  max-width: min(360px, 88%);
  border-radius: clamp(18px, 3vw, 26px);
  background: rgba(248, 236, 209, 0.86);
  border: 1px solid rgba(200, 176, 137, 0.35);
  box-shadow: 0 24px 60px rgba(84, 64, 38, 0.18);
  padding: clamp(1.4rem, 2.6vw, 2rem);
  transition: opacity 0.25s ease, transform 0.3s ease;
  backdrop-filter: blur(8px);
  transform: translateY(-50%);
  z-index: 2;
  pointer-events: auto;
}

.detail-overlay.detail-empty {
  opacity: 0;
  transform: translateY(calc(-50% + 18px));
  pointer-events: none;
}

.overlay-inner {
  display: grid;
  gap: clamp(0.8rem, 1.8vw, 1.2rem);
}

#detail-title {
  margin: 0;
  font-size: clamp(1.45rem, 3.2vw, 2.1rem);
}

#detail-author {
  margin: -0.35rem 0 0;
  font-weight: 400;
  color: rgba(58, 50, 38, 0.7);
  font-size: 1rem;
}

.detail-summary {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.55;
  color: rgba(58, 50, 38, 0.85);
}

.detail-notes {
  font-size: 0.92rem;
  line-height: 1.55;
  background: rgba(253, 244, 224, 0.95);
  border-radius: 18px;
  padding: 1rem 1.25rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95), inset 0 0 0 1px rgba(184, 156, 112, 0.32);
  white-space: pre-line;
}

.detail-found {
  font-size: 0.84rem;
  color: rgba(58, 50, 38, 0.62);
}

.overlay-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.overlay-actions button {
  font-family: inherit;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.55rem 1.35rem;
  border-radius: 999px;
  border: 1px solid rgba(195, 168, 128, 0.7);
  background: linear-gradient(135deg, #f8e7c6 0%, #e9d3a9 100%);
  color: inherit;
  cursor: pointer;
}

.overlay-actions button:hover {
  background: linear-gradient(135deg, #fdf1d5 0%, #edd6aa 100%);
}

@media (max-width: 900px) {
  .detail-overlay {
    left: 50%;
    right: auto;
    transform: translate(-50%, 110%);
    width: min(460px, 92%);
  }

  .detail-overlay.detail-empty {
    transform: translate(-50%, 110%) translateY(12px);
  }
}

@media (max-width: 640px) {
  .app-frame {
    padding: 1.8rem 1.1rem 2.4rem;
  }

  .experience-canvas {
    min-height: 420px;
  }
}