/* ============================================
   Shiny Apps Vuiet61 - Premium Dark Theme
   ============================================ */

:root {
  --bg: #0a0a0f;
  --bg2: #111118;
  --bg3: #1a1a28;
  --surface: #16161f;
  --surface2: #1e1e2e;
  --border: rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.12);

  --gold: #f0c040;
  --gold2: #ffd966;
  --gold-dim: rgba(240,192,64,0.15);
  --gold-glow: 0 0 20px rgba(240,192,64,0.3);

  --accent: #7c6dfa;
  --accent2: #a78bfa;
  --cyan: #00d4ff;
  --green: #00e676;
  --red: #ff4757;
  --orange: #ff9f43;

  --text: #e8e8f0;
  --text2: #a0a0b8;
  --text3: #606080;

  --font-display: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ============================================
   PARTICLES
   ============================================ */
.particles {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0; overflow: hidden;
}
.particle {
  position: absolute; bottom: -20px;
  width: 2px; height: 2px;
  background: var(--gold);
  border-radius: 50%;
  animation: float-up linear infinite;
  opacity: 0;
}
@keyframes float-up {
  0% { transform: translateY(0) scale(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.2; }
  100% { transform: translateY(-100vh) scale(1.5); opacity: 0; }
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 32px;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled {
  padding: 0 32px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}
.header-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; gap: 32px;
  height: 70px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 800; font-size: 20px;
  color: var(--text);
}
.logo-icon {
  color: var(--gold); font-size: 22px;
  animation: spin-slow 8s linear infinite;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }

.main-nav {
  display: flex; align-items: center; gap: 4px;
  margin-left: auto;
}
.main-nav > a, .nav-dropdown > a {
  padding: 8px 16px; border-radius: var(--radius);
  color: var(--text2); font-weight: 500; font-size: 14px;
  transition: var(--transition);
}
.main-nav > a:hover, .nav-dropdown > a:hover {
  color: var(--text); background: var(--border);
}
.nav-dropdown { position: relative; }
.dropdown-menu {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: var(--surface2); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 8px;
  min-width: 220px; opacity: 0; visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
}
.nav-dropdown:hover .dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown-menu a {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 8px;
  color: var(--text2); font-size: 13px; font-weight: 500;
  transition: var(--transition);
}
.dropdown-menu a:hover {
  background: var(--gold-dim); color: var(--gold);
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.cart-btn {
  position: relative;
  padding: 8px 18px; border-radius: var(--radius);
  background: var(--gold-dim); border: 1px solid var(--gold);
  color: var(--gold); font-weight: 600; font-size: 14px;
  transition: var(--transition);
}
.cart-btn:hover {
  background: var(--gold); color: var(--bg);
  box-shadow: var(--gold-glow);
}
.cart-badge {
  position: absolute; top: -8px; right: -8px;
  background: var(--red); color: white;
  border-radius: 50%; width: 20px; height: 20px;
  font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.menu-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; padding: 8px;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--text2); border-radius: 2px; transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.site-main { padding-top: 70px; position: relative; z-index: 1; }

.hero {
  min-height: 88vh;
  display: flex; align-items: center; justify-content: center;
  padding: 80px 32px;
  position: relative; overflow: hidden;
  text-align: center;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 120%, rgba(124,109,250,0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 20% 0%, rgba(240,192,64,0.08) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 80% 10%, rgba(0,212,255,0.06) 0%, transparent 50%);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}
.hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--gold-dim); border: 1px solid rgba(240,192,64,0.3);
  color: var(--gold2); padding: 6px 18px; border-radius: 100px;
  font-size: 13px; font-weight: 600; margin-bottom: 28px;
  animation: fadeInDown 0.6s ease;
}
.hero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.1; letter-spacing: -2px;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s 0.1s ease both;
}
.hero h1 span {
  background: linear-gradient(135deg, var(--gold), var(--gold2), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text2);
  max-width: 560px; margin: 0 auto 40px;
  animation: fadeInUp 0.6s 0.2s ease both;
}
.hero-actions {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  animation: fadeInUp 0.6s 0.3s ease both;
}
.hero-stats {
  display: flex; justify-content: center; gap: 48px;
  margin-top: 64px; padding-top: 40px;
  border-top: 1px solid var(--border);
  animation: fadeInUp 0.6s 0.4s ease both;
}
.stat-item { text-align: center; }
.stat-num {
  font-family: var(--font-display); font-size: 2rem; font-weight: 800;
  color: var(--gold);
}
.stat-label { color: var(--text3); font-size: 12px; font-weight: 500; margin-top: 4px; }

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

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: var(--radius);
  font-weight: 600; font-size: 15px; transition: var(--transition);
  position: relative; overflow: hidden;
}
.btn::before {
  content: ''; position: absolute; inset: 0;
  background: white; opacity: 0; transition: opacity 0.2s;
}
.btn:hover::before { opacity: 0.05; }
.btn-primary {
  background: var(--gold); color: var(--bg);
  box-shadow: 0 4px 20px rgba(240,192,64,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(240,192,64,0.5); }
.btn-outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--border2);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white; box-shadow: 0 4px 20px rgba(124,109,250,0.35);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(124,109,250,0.5); }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-danger { background: var(--red); color: white; }
.btn-danger:hover { background: #ff2d3f; transform: translateY(-1px); }
.btn-success { background: var(--green); color: var(--bg); }

/* ============================================
   SECTION LAYOUT
   ============================================ */
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
section { padding: 80px 0; }

.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  color: var(--gold); font-size: 12px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -1px; margin-bottom: 12px;
}
.section-title span { color: var(--gold); }
.section-subtitle { color: var(--text2); font-size: 16px; max-width: 500px; margin: 0 auto; }

/* ============================================
   PRODUCT CARDS
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex; flex-direction: column;
  position: relative;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--border2);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(240,192,64,0.1);
}
.product-card-image {
  aspect-ratio: 16/10; overflow: hidden;
  background: var(--bg3);
  position: relative;
}
.product-card-image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.product-card:hover .product-card-image img { transform: scale(1.05); }
.product-card-image .no-image {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 64px; opacity: 0.3;
}
.product-badge {
  position: absolute; top: 12px; left: 12px;
  padding: 4px 12px; border-radius: 100px;
  font-size: 11px; font-weight: 700; text-transform: uppercase;
}
.badge-sale { background: var(--red); color: white; }
.badge-new { background: var(--green); color: var(--bg); }
.badge-hot { background: var(--orange); color: white; }
.badge-featured { background: var(--gold); color: var(--bg); }

.product-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.product-category { color: var(--gold); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
.product-name {
  font-family: var(--font-display); font-weight: 700; font-size: 16px;
  line-height: 1.3; color: var(--text);
}
.product-name a:hover { color: var(--gold); }
.product-desc { color: var(--text2); font-size: 13px; line-height: 1.5; flex: 1; }
.product-meta { display: flex; align-items: center; justify-content: space-between; }
.product-rating { display: flex; align-items: center; gap: 4px; font-size: 13px; color: var(--gold); }
.product-version { font-size: 11px; color: var(--text3); background: var(--bg3); padding: 2px 8px; border-radius: 100px; }
.product-card-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.product-price { display: flex; align-items: baseline; gap: 8px; }
.price-current { font-family: var(--font-display); font-weight: 800; font-size: 20px; color: var(--gold); }
.price-old { font-size: 13px; color: var(--text3); text-decoration: line-through; }

/* ============================================
   CATEGORIES GRID
   ============================================ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.category-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center; cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.category-card:hover {
  background: var(--surface2);
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(240,192,64,0.15);
}
.cat-icon { font-size: 40px; margin-bottom: 12px; display: block; }
.cat-name { font-weight: 700; font-size: 14px; color: var(--text); }
.cat-count { font-size: 12px; color: var(--text3); margin-top: 4px; }

/* ============================================
   SHOP PAGE
   ============================================ */
.shop-layout { display: grid; grid-template-columns: 260px 1fr; gap: 32px; }
.shop-sidebar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  height: fit-content; position: sticky; top: 90px;
}
.sidebar-section { margin-bottom: 28px; }
.sidebar-section h3 {
  font-family: var(--font-display); font-weight: 700;
  font-size: 13px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--text2); margin-bottom: 14px;
}
.sidebar-section a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 12px; border-radius: 8px;
  color: var(--text2); font-size: 14px; font-weight: 500;
  transition: var(--transition);
}
.sidebar-section a:hover, .sidebar-section a.active {
  background: var(--gold-dim); color: var(--gold);
}
.sidebar-section a span { font-size: 11px; background: var(--bg3); padding: 2px 7px; border-radius: 100px; }
.price-range { display: flex; gap: 8px; }
.price-range input {
  flex: 1; background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 12px; color: var(--text); font-size: 13px;
}
.price-range input:focus { border-color: var(--gold); }

/* ============================================
   FORM ELEMENTS
   ============================================ */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-weight: 600; font-size: 13px; color: var(--text2); margin-bottom: 8px; }
.form-control {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px;
  color: var(--text); font-size: 14px; transition: var(--transition);
}
.form-control:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(240,192,64,0.1); }
.form-control::placeholder { color: var(--text3); }
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.product-detail-image {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4/3;
  display: flex; align-items: center; justify-content: center; font-size: 80px;
}
.product-detail-info { display: flex; flex-direction: column; gap: 20px; }
.product-detail-price {
  display: flex; align-items: baseline; gap: 12px;
  padding: 20px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.product-detail-price .price-current { font-size: 32px; }
.features-list { list-style: none; }
.features-list li {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 0; border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.features-list li::before { content: '✓'; color: var(--green); font-weight: 700; }

/* ============================================
   CART & CHECKOUT
   ============================================ */
.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; }
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th, .cart-table td {
  padding: 16px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.cart-table th { color: var(--text3); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; }
.cart-total-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px; position: sticky; top: 90px;
}
.total-row {
  display: flex; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.total-final {
  font-family: var(--font-display); font-weight: 800;
  font-size: 22px; color: var(--gold);
}
.payment-methods { display: flex; flex-direction: column; gap: 10px; }
.payment-option {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); cursor: pointer;
  transition: var(--transition); font-size: 14px;
}
.payment-option:hover { border-color: var(--gold); }
.payment-option.selected { border-color: var(--gold); background: var(--gold-dim); }
.payment-option input[type="radio"] { accent-color: var(--gold); }

/* ============================================
   ALERTS & MESSAGES
   ============================================ */
.alert {
  padding: 14px 18px; border-radius: var(--radius);
  margin-bottom: 16px; font-size: 14px; font-weight: 500;
  display: flex; align-items: center; gap: 10px;
}
.alert-success { background: rgba(0,230,118,0.1); border: 1px solid rgba(0,230,118,0.3); color: var(--green); }
.alert-error { background: rgba(255,71,87,0.1); border: 1px solid rgba(255,71,87,0.3); color: var(--red); }
.alert-info { background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.3); color: var(--cyan); }
.alert-warning { background: rgba(255,159,67,0.1); border: 1px solid rgba(255,159,67,0.3); color: var(--orange); }

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 40px 0 0;
}
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 10px;
  font-weight: 600; font-size: 14px; transition: var(--transition);
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text2);
}
.pagination a:hover { border-color: var(--gold); color: var(--gold); }
.pagination .active { background: var(--gold); border-color: var(--gold); color: var(--bg); }
.pagination .disabled { opacity: 0.3; pointer-events: none; }

/* ============================================
   PAGE HEADER
   ============================================ */
.page-hero {
  padding: 60px 32px 48px;
  text-align: center;
  background: linear-gradient(135deg, var(--bg2) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 10px; letter-spacing: -1px;
}
.breadcrumb {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  color: var(--text3); font-size: 13px;
}
.breadcrumb a { color: var(--gold); }

/* ============================================
   SEARCH BAR
   ============================================ */
.search-bar {
  display: flex; align-items: center;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 100px; padding: 4px 4px 4px 20px;
  transition: var(--transition); max-width: 500px; margin: 0 auto;
}
.search-bar:focus-within { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(240,192,64,0.1); }
.search-bar input {
  flex: 1; background: none; color: var(--text);
  font-size: 14px; padding: 8px 0;
}
.search-bar input::placeholder { color: var(--text3); }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 64px 32px 32px;
}
.footer-grid {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px; padding-bottom: 48px;
}
.footer-logo {
  font-family: var(--font-display); font-size: 20px; font-weight: 800;
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 12px;
}
.footer-logo span { color: var(--gold); }
.footer-brand p { color: var(--text3); font-size: 14px; line-height: 1.7; max-width: 260px; }
.social-links { display: flex; gap: 8px; margin-top: 20px; }
.social-links a {
  padding: 8px 14px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text2); font-size: 12px; font-weight: 600;
  transition: var(--transition);
}
.social-links a:hover { border-color: var(--gold); color: var(--gold); }
.footer-col h4 {
  font-family: var(--font-display); font-weight: 700; font-size: 14px;
  letter-spacing: 1px; margin-bottom: 18px; color: var(--text);
}
.footer-col a, .footer-col p {
  display: block; color: var(--text3); font-size: 13px;
  padding: 5px 0; line-height: 1.6; transition: var(--transition);
}
.footer-col a:hover { color: var(--gold); padding-left: 4px; }
.payment-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.payment-badges span {
  padding: 4px 12px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px;
  font-size: 12px; color: var(--text2);
}
.footer-bottom {
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-between;
  border-top: 1px solid var(--border); padding-top: 24px;
  color: var(--text3); font-size: 13px;
}

/* ============================================
   TAGS
   ============================================ */
.tag {
  display: inline-block; padding: 4px 12px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 100px; font-size: 12px; color: var(--text2);
}
.tag-gold { background: var(--gold-dim); border-color: rgba(240,192,64,0.3); color: var(--gold); }

/* ============================================
   MISC
   ============================================ */
.divider { border: none; border-top: 1px solid var(--border); margin: 32px 0; }
.text-gold { color: var(--gold); }
.text-muted { color: var(--text3); }
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.fw-bold { font-weight: 700; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-2 { gap: 8px; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .product-detail { grid-template-columns: 1fr; gap: 32px; }
  .cart-layout { grid-template-columns: 1fr; }
  .shop-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .site-header { padding: 0 20px; }
  .container { padding: 0 20px; }
  section { padding: 56px 0; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .hero-stats { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================
   SCROLL ANIMATION
   ============================================ */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
  width: 36px; height: 36px; margin: 40px auto;
  border: 3px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
  text-align: center; padding: 80px 32px;
  color: var(--text3);
}
.empty-state .empty-icon { font-size: 64px; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { font-size: 20px; color: var(--text2); margin-bottom: 8px; }