/* =========================================================
   MONOCHROME — Black & White Minimalist Luxury Theme
   ========================================================= */

:root {
  --black: #0a0a0a;
  --charcoal: #1a1a1a;
  --gray-900: #262626;
  --gray-700: #4d4d4d;
  --gray-500: #808080;
  --gray-300: #d1d1d1;
  --gray-100: #f2f2f2;
  --white: #ffffff;
  --accent: #0a0a0a;
  --danger: #b00020;
  --success: #1a7a3d;
  --font-display: 'Helvetica Neue', Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --transition: all 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.section-title {
  font-size: 22px;
  letter-spacing: 2px;
  text-align: center;
  margin-bottom: 8px;
}
.section-sub {
  text-align: center;
  color: var(--gray-500);
  font-size: 14px;
  margin-bottom: 36px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border: 1px solid var(--black);
  background: var(--black);
  color: var(--white);
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: var(--transition);
}
.btn:hover { background: var(--white); color: var(--black); }
.btn-outline { background: transparent; color: var(--black); }
.btn-outline:hover { background: var(--black); color: var(--white); }
.btn-whatsapp { background: #1a1a1a; }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 16px; font-size: 12px; }

/* ---------- Top bar / Header ---------- */
.topbar {
  background: var(--black);
  color: var(--white);
  font-size: 12px;
  letter-spacing: 1px;
  text-align: center;
  padding: 8px 0;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.logo img { height: 40px; }

.nav-main { display: flex; gap: 32px; }
.nav-main a {
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.nav-main a:hover, .nav-main a.active { border-color: var(--black); }

.header-icons { display: flex; align-items: center; gap: 18px; }
.header-icons a, .header-icons button {
  background: none; border: none; font-size: 20px; color: var(--black);
}

.mobile-toggle { display: none; background: none; border: none; font-size: 24px; }

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 200;
  padding: 24px;
  overflow-y: auto;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  font-size: 16px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-100);
}
.mobile-nav-close { font-size: 28px; background: none; border: none; float: right; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  height: 62vh;
  min-height: 380px;
  background: var(--gray-900);
  color: var(--white);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero img.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.55;
}
.hero-content { position: relative; z-index: 2; max-width: 600px; padding: 0 20px; }
.hero-content .eyebrow { font-size: 12px; letter-spacing: 3px; opacity: 0.8; margin-bottom: 12px; }
.hero-content h1 { font-size: 40px; line-height: 1.15; margin-bottom: 16px; }
.hero-content p { font-size: 15px; opacity: 0.85; margin-bottom: 28px; max-width: 460px; }
.hero-content .btn { background: var(--white); color: var(--black); border-color: var(--white); }
.hero-content .btn:hover { background: transparent; color: var(--white); }

/* ---------- Categories ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.category-card {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--gray-100);
}
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.category-card:hover img { transform: scale(1.06); }
.category-card .label {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 18px;
  background: linear-gradient(to top, rgba(0,0,0,0.75), transparent);
  color: var(--white);
  font-size: 14px; letter-spacing: 1.5px; text-transform: uppercase;
}

/* ---------- Product grid ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 16px;
}
.product-card { position: relative; }
.product-card .thumb {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--gray-100);
  margin-bottom: 12px;
}
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.product-card:hover .thumb img { transform: scale(1.05); }
.product-card .badge {
  position: absolute; top: 10px; left: 10px;
  background: var(--black); color: var(--white);
  font-size: 10px; letter-spacing: 1px; text-transform: uppercase;
  padding: 4px 10px;
}
.product-card .cat { font-size: 11px; color: var(--gray-500); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px; }
.product-card .name { font-size: 14px; font-weight: 500; text-transform: none; letter-spacing: 0; margin-bottom: 6px; }
.product-card .price { font-size: 14px; }
.product-card .price .old { text-decoration: line-through; color: var(--gray-500); margin-right: 8px; font-size: 13px; }
.product-card .price .now { font-weight: 600; }

/* ---------- Filter bar ---------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding: 16px 0; border-bottom: 1px solid var(--gray-100); margin-bottom: 24px;
}
.filter-bar select, .filter-bar input {
  border: 1px solid var(--gray-300);
  padding: 10px 12px;
  font-size: 13px;
  background: var(--white);
}
.results-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-size: 13px; color: var(--gray-500); }

/* ---------- Promo / Brand strip ---------- */
.promo-banner {
  background: var(--black); color: var(--white);
  text-align: center; padding: 60px 20px;
}
.promo-banner h2 { font-size: 26px; margin-bottom: 10px; }
.promo-banner p { opacity: 0.8; margin-bottom: 24px; }

.brand-strip { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; align-items: center; padding: 30px 0; }
.brand-strip img { height: 28px; opacity: 0.6; filter: grayscale(1); }

/* ---------- Instagram gallery ---------- */
.insta-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px;
}
.insta-grid img { aspect-ratio: 1/1; object-fit: cover; }

/* ---------- Newsletter ---------- */
.newsletter { background: var(--gray-100); padding: 50px 20px; text-align: center; }
.newsletter h3 { font-size: 20px; margin-bottom: 10px; }
.newsletter p { color: var(--gray-700); margin-bottom: 20px; font-size: 14px; }
.newsletter form { display: flex; max-width: 420px; margin: 0 auto; gap: 8px; }
.newsletter input[type=email] { flex: 1; padding: 14px; border: 1px solid var(--gray-300); font-size: 14px; }

/* ---------- Footer ---------- */
.footer { background: var(--black); color: var(--white); padding: 60px 0 20px; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 32px; margin-bottom: 40px; }
.footer h4 { font-size: 13px; letter-spacing: 1.5px; margin-bottom: 16px; opacity: 0.9; }
.footer ul li { margin-bottom: 10px; font-size: 13px; opacity: 0.7; }
.footer ul li a:hover { opacity: 1; text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 20px; text-align: center; font-size: 12px; opacity: 0.6;
}
.social-icons { display: flex; gap: 14px; margin-top: 12px; }
.social-icons a { width: 34px; height: 34px; border: 1px solid rgba(255,255,255,0.3); border-radius: 50%; display: flex; align-items: center; justify-content: center; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: 12px; color: var(--gray-500); padding: 16px 0; }
.breadcrumb a:hover { text-decoration: underline; }

/* ---------- Product detail ---------- */
.product-detail { display: grid; grid-template-columns: 1fr; gap: 30px; padding: 30px 0 60px; }
.gallery-main { aspect-ratio: 4/5; background: var(--gray-100); overflow: hidden; margin-bottom: 10px; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 8px; overflow-x: auto; }
.gallery-thumbs img { width: 70px; height: 90px; object-fit: cover; border: 2px solid transparent; cursor: pointer; }
.gallery-thumbs img.active { border-color: var(--black); }

.pd-info .cat { color: var(--gray-500); font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; }
.pd-info h1 { font-size: 26px; margin: 8px 0 12px; text-transform: none; letter-spacing: 0; }
.pd-info .price { font-size: 22px; margin-bottom: 20px; }
.pd-info .price .old { text-decoration: line-through; color: var(--gray-500); font-size: 16px; margin-right: 10px; }
.pd-info .desc { font-size: 14px; color: var(--gray-700); margin-bottom: 24px; }

.option-group { margin-bottom: 20px; }
.option-group label.title { display: block; font-size: 12px; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 10px; }
.option-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.option-pill {
  border: 1px solid var(--gray-300); padding: 8px 16px; font-size: 13px; background: var(--white);
  transition: var(--transition);
}
.option-pill.selected, .option-pill:hover { border-color: var(--black); background: var(--black); color: var(--white); }

.qty-selector { display: flex; align-items: center; border: 1px solid var(--gray-300); width: fit-content; }
.qty-selector button { width: 40px; height: 40px; background: none; border: none; font-size: 16px; }
.qty-selector input { width: 50px; text-align: center; border: none; font-size: 14px; }

.stock-info { font-size: 13px; margin-bottom: 20px; }
.stock-info.low { color: var(--danger); }

.pd-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }

/* ---------- Forms (checkout / contact) ---------- */
.form-card { max-width: 640px; margin: 0 auto; padding: 30px 0 60px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; margin-bottom: 6px; letter-spacing: 0.5px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--gray-300); font-size: 14px; font-family: inherit;
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 140px; }

.channel-choice { display: flex; gap: 12px; margin-top: 10px; }
.channel-choice label {
  flex: 1; border: 1px solid var(--gray-300); padding: 14px; text-align: center; cursor: pointer; font-size: 13px;
}
.channel-choice input { display: none; }
.channel-choice input:checked + span { font-weight: 700; }

.order-summary { border: 1px solid var(--gray-100); padding: 20px; margin-bottom: 24px; }
.order-summary .row { display: flex; justify-content: space-between; font-size: 14px; padding: 8px 0; border-bottom: 1px solid var(--gray-100); }
.order-summary .row.total { font-weight: 700; font-size: 16px; border-bottom: none; padding-top: 12px; }

.alert { padding: 14px 18px; margin-bottom: 20px; font-size: 14px; border-left: 4px solid; }
.alert-success { background: #eefaf0; border-color: var(--success); color: #114c26; }
.alert-error { background: #fdeeef; border-color: var(--danger); color: #7a0016; }
.alert-info { background: var(--gray-100); border-color: var(--black); }

/* ---------- Pagination ---------- */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 30px; }
.pagination a, .pagination span {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--gray-300); font-size: 13px;
}
.pagination .active { background: var(--black); color: var(--white); border-color: var(--black); }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.py-60 { padding: 60px 0; }
.empty-state { text-align: center; padding: 80px 20px; color: var(--gray-500); }

/* ---------- Responsive ---------- */
@media (max-width: 767px) {
  .nav-main, .header-icons .desktop-only { display: none; }
  .mobile-toggle { display: block; }
}

@media (min-width: 768px) {
  .mobile-toggle { display: none; }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
  .product-detail { grid-template-columns: 1fr 1fr; gap: 50px; }
  .insta-grid { grid-template-columns: repeat(6, 1fr); }
  .hero-content h1 { font-size: 52px; }
}

@media (min-width: 1024px) {
  .category-grid { grid-template-columns: repeat(4, 1fr); }
  .product-grid { grid-template-columns: repeat(4, 1fr); }
}