/* ============================================================
   style.css - Global Styles untuk Katalog Sepatu
   Font: Inter (Google Fonts)
   Tema: Hitam Elegan + Putih + Abu-abu Premium
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ─── CSS Variables ─────────────────────────────────────────── */
:root {
  --black: #0a0a0a;
  --black-soft: #111111;
  --black-card: #161616;
  --gray-dark: #1e1e1e;
  --gray-mid: #2a2a2a;
  --gray-border: #2e2e2e;
  --gray-text: #888888;
  --gray-light: #b0b0b0;
  --white: #ffffff;
  --white-soft: #f5f5f5;
  --accent: #e8e8e8;
  --highlight: #c8c8c8;
  --red: #ff4444;
  --green: #22c55e;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
}

/* ─── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; outline: none; }
input, select, textarea { font-family: inherit; outline: none; }
ul { list-style: none; }

/* ─── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--gray-mid); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-text); }

/* ─── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 5%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.nav-logo svg {
  display: block;
  transition: transform 0.3s ease;
}

.nav-logo:hover svg {
  transform: rotate(-8deg) scale(1.1);
}

.nav-logo span { color: var(--gray-light); }
.nav-logo .dot { color: var(--white); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-text);
  letter-spacing: 0.3px;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--white);
  transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--white);
}

.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-cta {
  background: var(--white);
  color: var(--black) !important;
  padding: 8px 20px;
  border-radius: 100px;
  font-weight: 600 !important;
  font-size: 0.8rem !important;
  transition: var(--transition) !important;
}

.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--accent) !important; transform: translateY(-1px); }

/* Menu Admin */
.nav-links a[href*="admin"] {
  color: var(--gray-text) !important;
  border: 1px solid var(--gray-border);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  transition: var(--transition) !important;
}

.nav-links a[href*="admin"]:hover {
  color: var(--white) !important;
  border-color: rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.05);
}

.nav-links a[href*="admin"]::after { display: none !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ─── Mobile Nav ────────────────────────────────────────────── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 70px; left: 0; right: 0;
  background: rgba(10,10,10,0.98);
  backdrop-filter: blur(20px);
  padding: 24px 5%;
  border-bottom: 1px solid var(--gray-border);
  z-index: 999;
  flex-direction: column;
  gap: 20px;
  transform: translateY(-10px);
  opacity: 0;
  transition: var(--transition);
}

.mobile-nav.open {
  display: flex;
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-light);
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-border);
  transition: var(--transition);
}

.mobile-nav a:hover { color: var(--white); padding-left: 8px; }

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--white);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.15);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--gray-dark);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--gray-mid);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--white);
}

.btn-whatsapp:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,211,102,0.3);
}

/* ─── Section Utilities ─────────────────────────────────────── */
.section { padding: 100px 5%; }
.section-sm { padding: 60px 5%; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray-text);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  display: block;
  width: 20px; height: 1px;
  background: var(--gray-text);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--gray-text);
  max-width: 500px;
  line-height: 1.7;
}

/* ─── Product Card ──────────────────────────────────────────── */
.product-card {
  background: var(--black-card);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.12);
  box-shadow: var(--shadow-lg);
}

.product-card-img {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--gray-dark);
}

.product-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-card-img img { transform: scale(1.06); }

.badge {
  position: absolute;
  top: 12px; left: 12px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  z-index: 2;
}

.badge-sold {
  background: rgba(255, 68, 68, 0.9);
  color: var(--white);
  backdrop-filter: blur(8px);
}

.badge-new {
  background: rgba(34, 197, 94, 0.9);
  color: var(--white);
  backdrop-filter: blur(8px);
}

.badge-used {
  background: rgba(255, 165, 0, 0.9);
  color: var(--white);
  backdrop-filter: blur(8px);
}

.sold-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.sold-overlay span {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--white);
  border: 2px solid var(--white);
  padding: 8px 20px;
  border-radius: 4px;
  transform: rotate(-15deg);
}

.product-card-body { padding: 20px; }

.product-brand {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray-text);
  margin-bottom: 6px;
}

.product-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.3;
}

.product-price {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.product-sizes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.size-chip {
  padding: 3px 8px;
  background: var(--gray-dark);
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--gray-light);
}

.product-condition {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-text);
}

.condition-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
}

.condition-dot.baru { background: var(--green); }
.condition-dot.bekas { background: orange; }

/* ─── Grid Layout ───────────────────────────────────────────── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

/* ─── Search & Filter Bar ───────────────────────────────────── */
.search-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 40px;
}

.search-input-wrap {
  flex: 1;
  min-width: 240px;
  position: relative;
}

.search-input-wrap svg {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-text);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 12px 16px 12px 46px;
  background: var(--black-card);
  border: 1px solid var(--gray-border);
  border-radius: 100px;
  color: var(--white);
  font-size: 0.9rem;
  transition: var(--transition);
}

.search-input:focus {
  border-color: rgba(255,255,255,0.3);
  background: var(--gray-dark);
}

.search-input::placeholder { color: var(--gray-text); }

.filter-select {
  padding: 12px 20px;
  background: var(--black-card);
  border: 1px solid var(--gray-border);
  border-radius: 100px;
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.filter-select:focus { border-color: rgba(255,255,255,0.3); }
.filter-select option { background: var(--black-card); }

/* ─── Skeleton Loading ──────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--gray-dark) 25%, var(--gray-mid) 50%, var(--gray-dark) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-card {
  background: var(--black-card);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.skeleton-img {
  aspect-ratio: 1;
  background: linear-gradient(90deg, var(--gray-dark) 25%, var(--gray-mid) 50%, var(--gray-dark) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-body { padding: 20px; }
.skeleton-line {
  height: 12px;
  margin-bottom: 10px;
  background: linear-gradient(90deg, var(--gray-dark) 25%, var(--gray-mid) 50%, var(--gray-dark) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}

.skeleton-line.short { width: 60%; }
.skeleton-line.medium { width: 80%; }

/* ─── Toast Notification ────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--gray-dark);
  border: 1px solid var(--gray-border);
  color: var(--white);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  max-width: 320px;
  box-shadow: var(--shadow-lg);
}

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

/* ─── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--black-soft);
  border-top: 1px solid var(--gray-border);
  padding: 60px 5% 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--gray-text);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-top: 12px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gray-light);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--gray-text);
  margin-bottom: 10px;
  transition: var(--transition);
}

.footer-col a:hover { color: var(--white); padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid var(--gray-border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--gray-text);
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gray-dark);
  border: 1px solid var(--gray-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-text);
  transition: var(--transition);
  font-size: 0.9rem;
}

.social-link:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
  transform: translateY(-2px);
}

/* ─── Empty State ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--gray-text);
}

.empty-state svg {
  margin: 0 auto 20px;
  opacity: 0.3;
}

.empty-state h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--gray-light);
  margin-bottom: 8px;
}

.empty-state p { font-size: 0.875rem; }

/* ─── Page Header ───────────────────────────────────────────── */
.page-header {
  padding: 140px 5% 60px;
  border-bottom: 1px solid var(--gray-border);
}

/* ─── Animations ────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-fade-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-up-delay-1 { animation-delay: 0.1s; opacity: 0; }
.animate-fade-up-delay-2 { animation-delay: 0.2s; opacity: 0; }
.animate-fade-up-delay-3 { animation-delay: 0.3s; opacity: 0; }
.animate-fade-up-delay-4 { animation-delay: 0.4s; opacity: 0; }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 80px 5%; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .search-filter-bar { flex-direction: column; align-items: stretch; }
  .search-input-wrap { min-width: unset; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .product-card-body { padding: 14px; }
  .product-name { font-size: 0.875rem; }
  .product-price { font-size: 0.95rem; }
}