/* =============================================
   檜木油購物網站 - 本土鄉村風格主樣式
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@400;500;600;700;900&family=Noto+Sans+TC:wght@300;400;500&family=ZCOOL+XiaoWei&display=swap');

:root {
  --wood-dark:    #4a2c0a;
  --wood-mid:     #7a4a1e;
  --wood-light:   #b07d4a;
  --wood-pale:    #d4a96a;
  --cream:        #f5edd8;
  --cream-dark:   #ede0c4;
  --green-deep:   #2d4a2a;
  --green-mid:    #4a7a3d;
  --green-light:  #7ab06b;
  --green-pale:   #c8e0b8;
  --ink:          #2a1a08;
  --ink-mid:      #5a3d1e;
  --gold:         #c8930a;
  --gold-light:   #e8b84b;
  --red-taiwan:   #c0392b;
  --white:        #fffef8;
  --shadow:       rgba(74, 44, 10, 0.18);
  --radius-sm:    6px;
  --radius:       12px;
  --radius-lg:    20px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Noto Sans TC', sans-serif;
  background-color: var(--cream);
  color: var(--ink);
  line-height: 1.7;
  min-height: 100vh;
  background-image:
    url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23b07d4a' fill-opacity='0.05'%3E%3Cpath d='M50 50c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10s-10-4.477-10-10 4.477-10 10-10zM10 10c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10S0 25.523 0 20s4.477-10 10-10z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* ── 捲軸 ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--cream-dark); }
::-webkit-scrollbar-thumb { background: var(--wood-light); border-radius: 4px; }

/* ── 選取色 ── */
::selection { background: var(--wood-pale); color: var(--ink); }

/* =============================================
   NAV
   ============================================= */
nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--wood-dark);
  background-image: linear-gradient(135deg, var(--wood-dark) 0%, #2d1a05 100%);
  border-bottom: 3px solid var(--gold);
  box-shadow: 0 4px 20px var(--shadow);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--gold-light);
  font-family: 'Noto Serif TC', serif;
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: 2px;
}

.nav-logo .logo-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--cream);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  letter-spacing: 0.5px;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(200, 147, 10, 0.25);
  color: var(--gold-light);
}

.nav-cart-btn {
  position: relative;
  background: var(--gold);
  color: var(--ink) !important;
  font-weight: 700 !important;
  border-radius: var(--radius-sm) !important;
  padding: 0.45rem 1rem !important;
}

.nav-cart-btn:hover { background: var(--gold-light) !important; color: var(--ink) !important; }

.cart-count {
  position: absolute;
  top: -6px; right: -6px;
  background: var(--red-taiwan);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  display: none;
}

.cart-count.show { display: flex; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--cream);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── Footer ── */
footer {
  background: var(--wood-dark);
  color: var(--cream);
  text-align: center;
  padding: 2.5rem 1.5rem;
  margin-top: 5rem;
  border-top: 3px solid var(--wood-mid);
}

footer .footer-logo {
  font-family: 'Noto Serif TC', serif;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--gold-light);
  letter-spacing: 3px;
  margin-bottom: 1rem;
}

footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

footer .footer-links a {
  color: var(--cream-dark);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

footer .footer-links a:hover { color: var(--gold-light); }

footer p { font-size: 0.8rem; color: rgba(245, 237, 216, 0.6); }

/* =============================================
   COMMON UTILITIES
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-title {
  font-family: 'Noto Serif TC', serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--wood-dark);
  text-align: center;
  margin-bottom: 0.5rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--green-mid));
  margin: 0.6rem auto 0;
  border-radius: 2px;
}

.section-sub {
  text-align: center;
  color: var(--ink-mid);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-sm);
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.22s;
  text-decoration: none;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--wood-dark);
  color: var(--cream);
  border-color: var(--wood-dark);
}
.btn-primary:hover { background: var(--wood-mid); border-color: var(--wood-mid); transform: translateY(-1px); box-shadow: 0 4px 12px var(--shadow); }

.btn-gold {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold);
}
.btn-gold:hover { background: var(--gold-light); border-color: var(--gold-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(200,147,10,0.35); }

.btn-green {
  background: var(--green-deep);
  color: var(--cream);
  border-color: var(--green-deep);
}
.btn-green:hover { background: var(--green-mid); border-color: var(--green-mid); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--wood-dark);
  border-color: var(--wood-light);
}
.btn-outline:hover { background: var(--cream-dark); }

.btn-sm { padding: 0.45rem 1rem; font-size: 0.85rem; }
.btn-lg { padding: 0.9rem 2rem; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none !important; }

/* ── Cards ── */
.card {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.25s, transform 0.25s;
}

.card:hover { box-shadow: 0 8px 28px var(--shadow); transform: translateY(-2px); }

/* ── Form elements ── */
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--wood-dark);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--cream-dark);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 0.95rem;
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus {
  outline: none;
  border-color: var(--wood-light);
  box-shadow: 0 0 0 3px rgba(176, 125, 74, 0.15);
}
textarea.form-control { resize: vertical; min-height: 100px; }

/* ── Alert/Toast ── */
.toast {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 9999;
  background: var(--wood-dark);
  color: var(--cream);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--gold);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  font-size: 0.95rem;
  max-width: 320px;
  transform: translateX(120%);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.toast.show { transform: translateX(0); }
.toast.success { border-left-color: var(--green-light); }
.toast.error { border-left-color: var(--red-taiwan); }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(42, 26, 8, 0.65);
  backdrop-filter: blur(3px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(42, 26, 8, 0.4);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.92) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }

.modal-header {
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--cream-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h2 {
  font-family: 'Noto Serif TC', serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--wood-dark);
}
.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--ink-mid);
  padding: 0.2rem;
  border-radius: 4px;
  transition: background 0.2s;
}
.modal-close:hover { background: var(--cream-dark); }
.modal-body { padding: 1.5rem; }
.modal-footer { padding: 1rem 1.5rem 1.5rem; display: flex; gap: 0.75rem; justify-content: flex-end; }

/* ── Loading spinner ── */
.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--cream-dark);
  border-top-color: var(--wood-mid);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 2rem auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.badge-gold { background: var(--gold-light); color: var(--ink); }
.badge-green { background: var(--green-pale); color: var(--green-deep); }
.badge-red { background: #fde8e6; color: var(--red-taiwan); }
.badge-wood { background: var(--cream-dark); color: var(--wood-dark); }

/* ── Decorative dividers ── */
.divider {
  text-align: center;
  margin: 2rem 0;
  color: var(--wood-pale);
  font-size: 1.3rem;
  letter-spacing: 8px;
}

/* ── Page header band ── */
.page-header {
  background: linear-gradient(135deg, var(--wood-dark), var(--green-deep));
  color: var(--cream);
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-header h1 {
  font-family: 'Noto Serif TC', serif;
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 3px;
  position: relative;
  margin-bottom: 0.5rem;
}
.page-header p { font-size: 0.95rem; opacity: 0.8; position: relative; }

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--ink-mid);
}
.empty-state .icon { font-size: 4rem; margin-bottom: 1rem; }
.empty-state h3 { font-family: 'Noto Serif TC', serif; font-size: 1.2rem; margin-bottom: 0.5rem; }

/* ── Star rating ── */
.stars { color: var(--gold); letter-spacing: 2px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: var(--wood-dark); padding: 1rem; gap: 0; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .section-title { font-size: 1.6rem; }
  .page-header h1 { font-size: 1.5rem; }
}