:root {
  color-scheme: light;
  --bg: #f7f2ea;
  --surface: #fffdf8;
  --text: #1d1b19;
  --muted: #6f6559;
  --accent: #c56d2b;
  --accent-dark: #8f4a1f;
  --accent-soft: rgba(197, 109, 43, 0.12);
  --line: rgba(29, 27, 25, 0.12);
  --shadow: 0 20px 60px rgba(29, 27, 25, 0.14);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Space Grotesk", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at top, #fff8ee, #f2e6d4 40%, #f7f2ea 70%);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

h1,
h2,
h3 {
  font-family: "Fraunces", "Space Grotesk", serif;
  font-weight: 600;
}

.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px;
  border-radius: 25px;
  background: linear-gradient(120deg, #fff1db, #fef6e8);
  box-shadow: var(--shadow);
  margin-bottom: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(197, 109, 43, 0.2);
}

.brand-kicker {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 12px;
}

button {
  font: inherit;
  border: none;
  cursor: pointer;
  border-radius: 15px;
  padding: 6px 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button-sm {
  padding: 6px 12px;
  font-size: 0.78rem;
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 12px 30px rgba(197, 109, 43, 0.3);
}

.primary:hover {
  transform: translateY(-1px);
}

.ghost {
  background: transparent;
  color: var(--accent-dark);
  border: 1px solid var(--accent);
}

.outline {
  background: white;
  border: 1px solid var(--line);
}

.icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-soft);
  font-size: 1.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.panel {
  background: var(--surface);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 32px;
  display: none;
}

.panel.active {
  display: block;
  animation: rise 0.4s ease;
}

@keyframes rise {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.login-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.tab {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
}

.tab.active {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.login-form {
  display: grid;
  gap: 16px;
}

label {
  font-size: 0.9rem;
  color: var(--muted);
  display: grid;
  gap: 8px;
}

input {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  font: inherit;
  background: #fffdf8;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.catalog-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.filters {
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 1fr));
  gap: 12px;
}

.stats {
  margin-bottom: 18px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 28px;
  justify-items: center;
}

.card {
  background: var(--surface);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(29, 27, 25, 0.08);
  display: grid;
  grid-template-rows: auto 1fr;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  max-width: 300px;
}

.card:hover,
.card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px rgba(29, 27, 25, 0.12);
}

.cover {
  position: relative;
  aspect-ratio: 3 / 4;
  background: #f0e5d5;
  overflow: hidden;
}

.cover.is-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    rgba(255, 255, 255, 0.05) 25%,
    rgba(255, 255, 255, 0.5) 45%,
    rgba(255, 255, 255, 0.05) 65%
  );
  transform: translateX(-100%);
  animation: shimmer 1.3s ease-in-out infinite;
  z-index: 2;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.cover.has-image img {
  display: block;
}

.cover.has-image .placeholder {
  display: none;
}

.placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 20px;
  font-family: "Fraunces", serif;
  color: var(--accent-dark);
}

.placeholder-title {
  font-size: 1.1rem;
}

.placeholder-author {
  font-size: 0.9rem;
  margin-top: 8px;
  color: var(--muted);
}

.card-body {
  padding: 16px;
  display: grid;
  gap: 12px;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.book-title {
  font-size: 1.05rem;
}

.book-author {
  color: var(--muted);
  font-size: 0.9rem;
}

.genre-chip {
  background: var(--accent-soft);
  color: var(--accent-dark);
  padding: 4px 10px;
  border-radius: 15px;
  font-size: 0.75rem;
}

.meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  gap: 10px;
}

.meta-label {
  color: var(--muted);
}

.expanded {
  border-top: 1px solid var(--line);
  padding: 16px;
  display: none;
  background: #fff8ee;
}

.card.expanded .expanded {
  display: block;
}

.expanded-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.expanded-label {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.expanded-value {
  font-size: 0.95rem;
}

.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--text);
  color: white;
  padding: 12px 18px;
  border-radius: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.pagination {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.page-indicator {
  color: var(--muted);
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.empty {
  padding: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(29, 27, 25, 0.4);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 30;
}

.modal.active {
  display: flex;
}

body.modal-open .page {
  filter: blur(4px);
}

.modal-card {
  background: var(--surface);
  border-radius: 28px;
  box-shadow: var(--shadow);
  width: min(960px, 92vw);
  max-height: 90vh;
  overflow: hidden;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
}

.modal-content {
  display: grid;
  grid-template-columns: minmax(240px, 300px) 1fr;
  gap: 24px;
  padding: 32px;
}

.modal-info {
  display: grid;
  gap: 18px;
  padding-right: 32px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.modal-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

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

.has-tooltip {
  position: relative;
}

.has-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 50%;
  left: 100%;
  transform: translate(10px, -50%);
  background: #1d1b19;
  color: white;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 0.75rem;
  width: max-content;
  max-width: 220px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 5;
}

.has-tooltip:hover::after,
.has-tooltip:focus-visible::after {
  opacity: 1;
}

.alert {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(29, 27, 25, 0.4);
  z-index: 40;
  padding: 24px;
}

.alert.active {
  display: flex;
}

.alert-card {
  background: var(--surface);
  border-radius: 22px;
  padding: 24px;
  width: min(420px, 90vw);
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
  text-align: center;
}

@media (max-width: 900px) {
  .filters {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 24px;
  }

  .modal-content {
    grid-template-columns: 1fr;
  }

  .modal-info {
    padding-right: 0;
  }
}

@media (max-width: 600px) {
  .page {
    padding: 32px 18px 60px;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions button {
    flex: 1;
  }
}