/* ============================================================
   Biotope Design System + Apple UI
   ============================================================ */

:root {
  --color-primary:       #2D5A27;
  --color-primary-light: #E8F5E9;
  --color-accent:        #C65D00;
  --color-accent-light:  #FFF3E8;
  --color-text:          #1A1A1A;
  --color-text-muted:    #6B6B6B;
  --color-bg:            #F5F5F7;
  --color-card:          #FFFFFF;
  --color-border:        #E2E2E7;
  --color-rating:        #B8860B;

  --font-family:    'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;

  --space-xs:  4px;
  --space-sm:  8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl:48px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;

  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);

  --drawer-width: 440px;
  --header-h:      64px;
  --toolbar-h:     60px;
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

body {
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* ── Loading overlay ────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  z-index: 1000;
  transition: opacity var(--transition);
}
.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.loading-spinner.small {
  width: 24px;
  height: 24px;
  border-width: 2px;
}

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

.loading-text {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ── Drawer backdrop ────────────────────────────────────── */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.25);
  z-index: 200;
  animation: fadeIn 200ms ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Header ─────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.header-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.header-meta {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-left: auto;
}

/* ── Toolbar ─────────────────────────────────────────────── */
.toolbar {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  height: var(--toolbar-h);
}
.toolbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.search-wrap {
  position: relative;
  flex: 1;
  max-width: 360px;
}
.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  pointer-events: none;
}
.search-input {
  width: 100%;
  height: 36px;
  padding: 0 var(--space-md) 0 36px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-family: var(--font-family);
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45,90,39,0.1);
}
.search-input::placeholder { color: var(--color-text-muted); }

.sort-select {
  height: 36px;
  padding: 0 var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-bg);
  cursor: pointer;
  outline: none;
}

/* ── Main ────────────────────────────────────────────────── */
.main {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.result-info {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-muted);
}

/* ── Card grid ───────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

/* ── Product card ────────────────────────────────────────── */
.product-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition: box-shadow var(--transition), transform var(--transition);
  cursor: default;
}
.product-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.card-header {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.rating-badge {
  flex-shrink: 0;
  text-align: center;
}
.rating-number {
  font-size: 26px;
  font-weight: 600;
  color: var(--color-rating);
  line-height: 1;
  letter-spacing: -0.03em;
}
.rating-stars {
  font-size: 11px;
  color: var(--color-rating);
  letter-spacing: 1px;
}
.rating-count {
  font-size: 11px;
  color: var(--color-text-muted);
  display: block;
  margin-top: 2px;
}

.card-title-wrap {
  flex: 1;
  min-width: 0;
}
.card-product-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  word-break: break-all;
}

/* ── Topic tags ──────────────────────────────────────────── */
.card-topics {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.topic-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
}
.topic-label {
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
  width: 14px;
  text-align: center;
}
.topic-label.neg { color: var(--color-accent); }
.topic-label.pos { color: var(--color-primary); }

.topic-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 12px;
  white-space: nowrap;
}
.topic-tag.neg {
  background: rgba(198,93,0,0.09);
  color: var(--color-accent);
}
.topic-tag.pos {
  background: rgba(45,90,39,0.09);
  color: var(--color-primary);
}

/* ── Card summary ────────────────────────────────────────── */
.card-summary {
  font-size: 12px;
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Card footer ─────────────────────────────────────────── */
.card-footer {
  margin-top: auto;
  display: flex;
  justify-content: flex-end;
}
.btn-reviews {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 32px;
  padding: 0 var(--space-md);
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-reviews:hover {
  background: #245020;
  box-shadow: 0 2px 8px rgba(45,90,39,0.25);
}

/* ── Drawer ──────────────────────────────────────────────── */
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--drawer-width);
  height: 100dvh;
  background: var(--color-card);
  box-shadow: var(--shadow-lg);
  z-index: 300;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateX(100%);
  transition: transform 280ms cubic-bezier(0.4, 0, 0.2, 1);
}
.drawer.is-open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.drawer-title-wrap {
  flex: 1;
  min-width: 0;
}
.drawer-product-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  word-break: break-all;
}
.drawer-meta {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}
.drawer-close {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
}
.drawer-close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

/* ── Drawer complaints ───────────────────────────────────── */
.drawer-complaints {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-accent-light);
  border-bottom: 1px solid rgba(198,93,0,0.12);
  flex-shrink: 0;
}
.drawer-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}
.drawer-complaints-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.drawer-complaints-list li {
  font-size: 13px;
  color: #7A3A00;
  line-height: 1.5;
  padding-left: var(--space-md);
  position: relative;
}
.drawer-complaints-list li::before {
  content: '·';
  position: absolute;
  left: 4px;
  font-weight: 700;
  color: var(--color-accent);
}

/* ── Drawer filter bar ───────────────────────────────────── */
.drawer-filter-bar {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.filter-btn {
  height: 28px;
  padding: 0 var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  background: none;
  font-family: var(--font-family);
  font-size: 12px;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.filter-btn:hover {
  background: var(--color-bg);
  color: var(--color-text);
}
.filter-btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ── Drawer reviews ──────────────────────────────────────── */
.drawer-loading {
  display: flex;
  justify-content: center;
  padding: var(--space-xl);
}
.drawer-reviews {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  overscroll-behavior: contain;
}
.drawer-empty {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 13px;
}

.review-item {
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border-left: 3px solid transparent;
}
.review-item.r-low  { border-left-color: var(--color-accent); }
.review-item.r-mid  { border-left-color: var(--color-text-muted); }
.review-item.r-high { border-left-color: var(--color-primary); }

.review-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: 8px;
}
.review-rating {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-rating);
}
.review-date {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-left: auto;
}
.review-text {
  font-size: 13px;
  line-height: 1.65;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-all;
}
.review-source {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 6px;
}
.review-source a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.review-source a:hover { color: var(--color-text); }

/* ── Mobile ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .header-inner,
  .toolbar-inner,
  .main {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
  .search-wrap {
    max-width: none;
    flex: 1;
  }
  .drawer {
    width: 100vw;
  }
  .card-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .main {
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
  }
}