/* ============================================================
   TRÚC XINH – Reusable Components
   ============================================================ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-sans);
  letter-spacing: 0.03em;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  text-transform: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(200,55,74,0.35);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,55,74,0.45);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: var(--color-secondary);
  border-color: var(--color-secondary);
}
.btn-secondary:hover {
  background: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--color-white);
}

.btn-highlight {
  background: var(--color-highlight);
  color: var(--color-text);
  border-color: var(--color-highlight);
  box-shadow: 0 4px 16px rgba(255,213,116,0.4);
}
.btn-highlight:hover {
  background: #f5c840;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,213,116,0.5);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-icon {
  width: 40px; height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
  font-size: var(--text-base);
}

/* ── Cards ── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid var(--color-border-light);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-img {
  width: 100%; height: 220px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.card:hover .card-img { transform: scale(1.04); }
.card-img-wrap { overflow: hidden; }

.card-body { padding: var(--space-5); }
.card-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: var(--space-2);
}
.card-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── Product Card ── */
.product-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid var(--color-border-light);
  cursor: pointer;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.product-card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--color-bg-alt);
}
.product-card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-card-img { transform: scale(1.06); }

.product-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30,10,8,0.65) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
}
.product-card:hover .product-card-overlay { opacity: 1; }

.product-card-quick-add {
  width: 100%;
  background: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
  transition: background var(--transition-fast);
}
.product-card-quick-add:hover { background: var(--color-accent-dark); }

.product-card-body { padding: var(--space-4); }
.product-card-name {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: var(--space-1);
}
.product-card-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-bottom: var(--space-3);
}
.product-card-price {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-accent);
}

/* ── Collection Card ── */
.collection-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 2/3;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.collection-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-xl);
}
.collection-card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.collection-card:hover .collection-card-img { transform: scale(1.08); }
.collection-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(30,10,8,0.75) 0%, rgba(30,10,8,0.2) 50%, transparent 100%);
}
.collection-card-body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-6);
  color: var(--color-white);
}
.collection-card-tagline {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-highlight);
  margin-bottom: var(--space-2);
}
.collection-card-name {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
}
.collection-card-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.7);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--transition-base);
}
.collection-card-btn:hover {
  background: var(--color-white);
  color: var(--color-secondary);
}

/* ── News Card ── */
.news-card {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}
.news-card:last-child { border-bottom: none; }
.news-card:hover { padding-left: var(--space-2); }

.news-card-img {
  width: 170px; height: 120px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  object-position: center;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}
.news-card:hover .news-card-img { transform: scale(1.03); }

.news-card-body { flex: 1; }
.news-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-secondary);
  line-height: 1.4;
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}
.news-card:hover .news-card-title { color: var(--color-accent); }

.news-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-light);
}

/* ── Event Card ── */
.event-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
}
.event-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}
.event-card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.event-card:hover .event-card-img { transform: scale(1.05); }
.event-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,5,5,0.8) 0%, rgba(10,5,5,0.3) 50%, transparent 100%);
}
.event-date-badge {
  position: absolute;
  top: var(--space-4); left: var(--space-4);
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  text-align: center;
  min-width: 52px;
}
.event-date-badge .day {
  display: block;
  font-size: var(--text-xl);
  font-weight: 800;
  line-height: 1;
}
.event-date-badge .month {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  margin-top: 2px;
}
.event-card-body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-5);
  color: var(--color-white);
}
.event-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.event-card-location {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.8);
  display: flex; align-items: center; gap: var(--space-1);
  margin-bottom: var(--space-3);
}
.event-card-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-highlight);
  display: flex; align-items: center; gap: var(--space-2);
  transition: gap var(--transition-fast);
}
.event-card:hover .event-card-link { gap: var(--space-3); }

/* ── Membership Card ── */
.membership-card {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  position: relative;
  padding: var(--space-8) var(--space-8);
  margin-bottom: var(--space-5);
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.membership-card-green {
  background: linear-gradient(135deg, #1a4a2e 0%, #2d6a44 100%);
  color: var(--color-white);
}
.membership-card-red {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
}
.membership-card-name {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.8;
  margin-bottom: var(--space-2);
}
.membership-card-price {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1;
}
.membership-card-price span {
  font-size: var(--text-sm);
  font-weight: 400;
  opacity: 0.7;
}
.membership-card-features {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.membership-card-feature {
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.membership-card-feature::before {
  content: '✓';
  font-weight: 700;
  color: var(--color-highlight);
}
.membership-card-deco {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 40%;
  pointer-events: none;
  opacity: 0.3;
}

/* ── Avatar / Icon Circle ── */
.icon-circle {
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  background: var(--color-white);
  transition: all var(--transition-base);
}
.icon-circle:hover {
  border-color: var(--color-accent);
  background: rgba(200,55,74,0.06);
  transform: scale(1.05);
}

/* ── Social Icons ── */
.social-icons { display: flex; gap: var(--space-4); align-items: center; }
.social-icon {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  transition: all var(--transition-base);
  border: 1px solid rgba(255,255,255,0.2);
  text-decoration: none;
}
.social-icon:hover {
  transform: translateY(-3px) scale(1.1);
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-accent);
}

/* ── Form Elements ── */
.form-group { margin-bottom: var(--space-5); }
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: var(--space-2);
}
.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}
.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(200,55,74,0.12);
}
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23713b36' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

/* ── Qty Stepper ── */
.qty-stepper {
  display: inline-flex;
  align-items: center;
  gap: 0;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.qty-btn {
  width: 36px; height: 36px;
  background: var(--color-bg-alt);
  color: var(--color-secondary);
  font-size: var(--text-lg);
  font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
}
.qty-btn:hover { background: var(--color-border); }
.qty-val {
  width: 48px; text-align: center;
  font-weight: 600;
  color: var(--color-text);
  font-size: var(--text-sm);
  border: none;
  background: var(--color-white);
  outline: none;
}

/* ── Color Swatch ── */
.color-swatches {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.color-swatch {
  width: 28px; height: 28px;
  border-radius: 50%;
  cursor: pointer;
  border: 2.5px solid transparent;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  outline: 2px solid var(--color-border-light);
  outline-offset: 2px;
}
.color-swatch:hover { transform: scale(1.15); }
.color-swatch.active {
  border-color: var(--color-accent);
  outline-color: var(--color-accent);
}

/* ── Size Selector ── */
.size-options {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.size-option {
  padding: var(--space-2) var(--space-3);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-white);
}
.size-option:hover {
  border-color: var(--color-secondary);
  background: var(--color-bg-alt);
}
.size-option.active {
  background: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-8);
}
.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}
.empty-state-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--color-secondary);
  margin-bottom: var(--space-3);
}
.empty-state-text {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-6);
}

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-6);
}
.breadcrumb a {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb-sep { opacity: 0.4; }

/* ── Page Hero (non-home) ── */
.page-hero {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-bg-dark) 100%);
  color: var(--color-white);
  padding: var(--space-20) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url('/images/pattern-bg.svg') repeat;
  opacity: 0.06;
}
.page-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, var(--text-5xl));
  font-weight: 700;
  margin-bottom: var(--space-4);
  position: relative;
}
.page-hero-subtitle {
  font-size: var(--text-lg);
  opacity: 0.8;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

/* ── Grid Layouts ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ── Responsive Nav utils ── */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}
@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* ── Image Placeholder ── */
.img-placeholder {
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-border) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 2.5rem;
}