/* style.css */

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

:root {
  --primary: #7c3aed;
  --primary-dark: #5b21b6;
  --accent: #06b6d4;
  --bg: #f8fafc;
  --bg2: #ffffff;
  --bg3: #f1f5f9;
  --text: #0f172a;
  --text2: #475569;
  --text3: #94a3b8;
  --border: #e2e8f0;
  --card-shadow: 0 4px 20px rgba(0,0,0,.08);
  --card-hover-shadow: 0 12px 40px rgba(124,58,237,.18);
  --radius: 14px;
  --header-h: 64px;
  --transition: .25s ease;
}

.dark-mode {
  --bg: #0f0f1a;
  --bg2: #1a1a2e;
  --bg3: #16213e;
  --text: #f1f5f9;
  --text2: #94a3b8;
  --text3: #64748b;
  --border: #2d2d4e;
  --card-shadow: 0 4px 20px rgba(0,0,0,.4);
  --card-hover-shadow: 0 12px 40px rgba(124,58,237,.35);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ───── Buttons ───── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: .95rem; font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 4px 14px rgba(124,58,237,.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(124,58,237,.45); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text2);
}
.btn-ghost:hover { border-color: #ef4444; color: #ef4444; }
.btn-full { width: 100%; }

/* ───── Header ───── */
#header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
#header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.1); }
.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}

.logo { font-size: 1.5rem; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.nav { display: flex; gap: 4px; }
.nav a {
  padding: 6px 14px; border-radius: 8px;
  font-size: .9rem; font-weight: 500; color: var(--text2);
  transition: background var(--transition), color var(--transition);
}
.nav a:hover { background: var(--bg3); color: var(--primary); }

.header-actions { display: flex; align-items: center; gap: 8px; }

.dark-toggle {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--bg3); font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), transform var(--transition);
}
.dark-toggle:hover { transform: rotate(20deg); background: var(--border); }

.cart-btn {
  position: relative;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; border-radius: 8px;
  padding: 8px 14px; font-size: .95rem; font-weight: 600;
  display: flex; align-items: center; gap: 6px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.cart-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(124,58,237,.4); }
.cart-badge {
  position: absolute; top: -6px; right: -6px;
  background: #ef4444; color: #fff;
  border-radius: 50%; width: 18px; height: 18px;
  font-size: .7rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: transform .2s;
}
.cart-badge.bump { animation: bump .3s ease; }

@keyframes bump {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.5); }
  100% { transform: scale(1); }
}

.hamburger { display: none; width: 38px; height: 38px; border-radius: 8px; background: var(--bg3); font-size: 1.2rem; align-items: center; justify-content: center; }

/* ───── Banner ───── */
.banner {
  position: relative; height: 100vh; min-height: 520px;
  margin-top: var(--header-h);
  display: flex; align-items: center; overflow: hidden;
}
.banner-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
}
.banner-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(15,15,26,.85) 0%, rgba(124,58,237,.4) 100%);
}
.banner-content {
  position: relative; z-index: 1; padding: 0 40px;
  max-width: 660px; animation: fadeUp .8s ease both;
}
.banner-content h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900; line-height: 1.15; color: #fff; margin-bottom: 16px;
}
.banner-content h1 span {
  background: linear-gradient(135deg, #a78bfa, var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.banner-content p { color: rgba(255,255,255,.8); font-size: 1.1rem; line-height: 1.6; margin-bottom: 28px; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ───── Search & Filter ───── */
.search-filter { background: var(--bg3); padding: 24px 0; border-bottom: 1px solid var(--border); }
.search-filter-inner {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.search-wrap { flex: 1; min-width: 200px; }
.search-wrap input {
  width: 100%; padding: 10px 16px;
  border: 2px solid var(--border); border-radius: 10px;
  background: var(--bg2); color: var(--text);
  outline: none; transition: border-color var(--transition), box-shadow var(--transition);
}
.search-wrap input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(124,58,237,.1); }
.filter-wrap { display: flex; align-items: center; gap: 10px; }
.filter-wrap label { color: var(--text2); font-size: .9rem; font-weight: 500; white-space: nowrap; }
.filter-wrap select {
  padding: 10px 14px; border: 2px solid var(--border); border-radius: 10px;
  background: var(--bg2); color: var(--text);
  outline: none; transition: border-color var(--transition);
}
.filter-wrap select:focus { border-color: var(--primary); }

/* ───── Section Titles ───── */
.section-title {
  font-size: 1.75rem; font-weight: 800; margin-bottom: 28px;
  position: relative; padding-bottom: 10px;
}
.section-title::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 50px; height: 4px; border-radius: 2px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

/* ───── Products ───── */
.products-section { padding: 60px 0; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: fadeUp .5s ease both;
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-hover-shadow);
}
.product-card-img {
  position: relative; overflow: hidden; aspect-ratio: 4/3;
  background: var(--bg3);
}
.product-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
  background: linear-gradient(90deg, var(--bg3) 25%, var(--border) 50%, var(--bg3) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
.product-card-img img.loaded,
.product-card-img img[src^="data:"] { animation: none; background: none; }
.product-card:hover .product-card-img img { transform: scale(1.06); }

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

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: .72rem; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; }
.badge-hot { background: linear-gradient(135deg, #ef4444, #f97316); color: #fff; }
.badge-new { background: linear-gradient(135deg, #10b981, #06b6d4); color: #fff; }

.product-badge-wrap {
  position: absolute; top: 12px; left: 12px; z-index: 1;
}

.product-card-body { padding: 18px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.product-card-name { font-size: 1.05rem; font-weight: 700; color: var(--text); line-height: 1.3; }
.product-card-desc { font-size: .875rem; color: var(--text2); line-height: 1.5; flex: 1; }
.product-card-price { font-size: 1.2rem; font-weight: 800; color: var(--primary); }

.product-card-actions { padding: 0 18px 18px; display: flex; gap: 10px; }
.product-card-actions .btn { flex: 1; padding: 9px 12px; font-size: .85rem; }
.btn-outline {
  background: transparent; border: 2px solid var(--primary); color: var(--primary);
  border-radius: 8px; font-weight: 600; transition: all var(--transition);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

.no-result { text-align: center; color: var(--text2); padding: 40px 0; display: none; font-size: 1rem; }
.no-result.visible { display: block; }

/* ───── Cart Section ───── */
.cart-section { padding: 60px 0; }

.cart-empty {
  text-align: center; padding: 60px 20px;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.cart-empty-icon { font-size: 4rem; line-height: 1; }
.cart-empty p { color: var(--text2); font-size: 1.1rem; }

#cartContent { display: none; }

.cart-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }

.cart-item {
  display: flex; align-items: center; gap: 16px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--transition);
  animation: fadeUp .3s ease both;
}
.cart-item:hover { box-shadow: 0 6px 24px rgba(0,0,0,.1); }
.cart-item-img { width: 70px; height: 70px; border-radius: 10px; object-fit: cover; flex-shrink: 0; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { font-weight: 700; font-size: .95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cart-item-price { color: var(--primary); font-weight: 700; font-size: .9rem; margin-top: 4px; }
.cart-item-controls { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.qty-btn {
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); font-size: 1rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.qty-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.qty-display { font-weight: 700; min-width: 28px; text-align: center; font-size: .95rem; }
.cart-item-remove {
  width: 32px; height: 32px; border-radius: 8px;
  background: #fef2f2; color: #ef4444;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem; flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
}
.cart-item-remove:hover { background: #ef4444; color: #fff; transform: scale(1.1); }

.cart-summary {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  box-shadow: var(--card-shadow);
}
.cart-total { font-size: 1.2rem; font-weight: 600; color: var(--text2); margin-bottom: 16px; }
.cart-total strong { font-size: 1.5rem; color: var(--primary); }
.cart-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cart-actions .btn { flex: 1; min-width: 140px; }

/* ───── Contact ───── */
.contact-section { padding: 60px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; gap: 12px; align-items: flex-start; }
.contact-item span { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.contact-item p { color: var(--text2); line-height: 1.5; }

.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form input,
.contact-form textarea {
  padding: 12px 16px; border: 2px solid var(--border); border-radius: 10px;
  background: var(--bg2); color: var(--text); outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(124,58,237,.1); }

/* ───── Footer ───── */
.footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 48px 0 0; margin-top: 40px; }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo { font-size: 1.6rem; margin-bottom: 12px; display: inline-block; }
.footer-brand p { color: var(--text2); font-size: .9rem; line-height: 1.6; max-width: 260px; }
.footer-links, .footer-social { display: flex; flex-direction: column; gap: 10px; }
.footer-links h4, .footer-social h4 { font-weight: 700; margin-bottom: 4px; font-size: .95rem; }
.footer-links a, .footer-social a { color: var(--text2); font-size: .9rem; transition: color var(--transition); }
.footer-links a:hover, .footer-social a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border);
  text-align: center; padding: 16px 20px;
  color: var(--text3); font-size: .85rem;
}

/* ───── Scroll to Top ───── */
.scroll-top {
  position: fixed; bottom: 28px; right: 28px; z-index: 900;
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 1.2rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(124,58,237,.4);
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
.scroll-top.visible { opacity: 1; pointer-events: all; }
.scroll-top:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(124,58,237,.5); }

/* ───── Toast ───── */
.toast {
  position: fixed; bottom: 90px; right: 28px; z-index: 2000;
  background: var(--bg2); color: var(--text);
  border: 1px solid var(--border); border-left: 4px solid var(--primary);
  border-radius: 10px; padding: 14px 20px;
  font-size: .9rem; font-weight: 500;
  box-shadow: 0 8px 30px rgba(0,0,0,.15);
  transform: translateX(120%); opacity: 0;
  transition: transform .35s cubic-bezier(.4,0,.2,1), opacity .35s;
  max-width: 280px;
}
.toast.show { transform: translateX(0); opacity: 1; }

/* ───── Modals ───── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1500;
  background: rgba(0,0,0,.65); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--bg2); border-radius: 18px;
  width: 100%; max-width: 800px; max-height: 90vh;
  overflow-y: auto; position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
  transform: translateY(20px) scale(.97);
  transition: transform .25s ease;
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }

.modal-close {
  position: absolute; top: 16px; right: 16px; z-index: 10;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--bg3); color: var(--text2); font-size: .9rem;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.modal-close:hover { background: #ef4444; color: #fff; }

.modal-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.modal-img-wrap { background: var(--bg3); border-radius: 18px 0 0 18px; overflow: hidden; aspect-ratio: 1; }
.modal-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.modal-info { padding: 32px; display: flex; flex-direction: column; gap: 12px; }
.modal-price { font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.modal-desc { color: var(--text2); line-height: 1.65; font-size: .95rem; }
.modal-specs { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.modal-specs li { font-size: .875rem; color: var(--text2); padding-left: 16px; position: relative; }
.modal-specs li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: 700; }
#modalName { font-size: 1.4rem; font-weight: 800; }

.modal-checkout { max-width: 520px; padding: 36px; }
.modal-checkout h2 { font-size: 1.4rem; font-weight: 800; margin-bottom: 24px; }
.form-group { margin-bottom: 14px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 2px solid var(--border); border-radius: 10px;
  background: var(--bg); color: var(--text); outline: none;
  transition: border-color var(--transition), box-shadow var(--transition); resize: vertical;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(124,58,237,.1); }
.form-group input.error, .form-group textarea.error { border-color: #ef4444; }

.checkout-summary {
  background: var(--bg3); border-radius: 10px; padding: 16px;
  margin-bottom: 20px; font-size: .9rem; color: var(--text2); line-height: 1.8;
}
.checkout-summary strong { color: var(--primary); }

/* ───── Responsive ───── */
@media (max-width: 900px) {
  .modal-inner { grid-template-columns: 1fr; }
  .modal-img-wrap { border-radius: 18px 18px 0 0; aspect-ratio: 16/9; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav { display: none; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--bg2); border-bottom: 1px solid var(--border); padding: 12px 16px; box-shadow: 0 8px 24px rgba(0,0,0,.1); }
  .nav.open { display: flex; }
  .hamburger { display: flex; }
  .banner-content { padding: 0 24px; }
  .footer-inner { grid-template-columns: 1fr; }
  .cart-item { flex-wrap: wrap; }
  .cart-item-img { width: 56px; height: 56px; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
  .modal-checkout { padding: 24px; }
  .search-filter-inner { flex-direction: column; align-items: stretch; }
  .filter-wrap { justify-content: space-between; }
}