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

:root {
  --bg: #0a0a0a;
  --bg-alt: #111111;
  --surface: #1a1a1a;
  --surface-hover: #222222;
  --text: #f5f5f5;
  --text-muted: #999999;
  --accent: #c4ff3d;
  --accent-dark: #a8e02e;
  --border: #2a2a2a;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --font-body: 'Inter', sans-serif;
  --font-head: 'Space Grotesk', sans-serif;
}

html { scroll-behavior: smooth; }

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

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

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ===== Typography ===== */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; }
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: 1.25rem; }
p { color: var(--text-muted); }
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 12px;
}
.accent { color: var(--accent); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #0a0a0a;
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.link-arrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}
.link-arrow:hover { transform: translateX(4px); }

/* ===== Header ===== */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
#header.scrolled { border-bottom-color: var(--border); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.5px;
}
#nav { display: flex; gap: 32px; }
#nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: var(--transition);
  position: relative;
}
#nav a:hover, #nav a.active { color: var(--text); }
#nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.icon-btn {
  position: relative;
  font-size: 1.2rem;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
}
.icon-btn:hover { background: var(--surface); }
.cart-count {
  position: absolute;
  top: 2px; right: 2px;
  background: var(--accent);
  color: #0a0a0a;
  font-size: 0.65rem;
  font-weight: 700;
  min-width: 16px; height: 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.menu-toggle { display: none; font-size: 1.4rem; }

/* ===== Hero ===== */
.hero { padding-top: 120px; position: relative; }
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding-bottom: 60px;
}
.hero-text h1 { margin-bottom: 20px; }
.hero-text p { font-size: 1.15rem; max-width: 420px; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual { display: flex; justify-content: center; }
.hero-card {
  background: linear-gradient(145deg, var(--surface), var(--bg-alt));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
  width: 340px;
  transition: var(--transition);
}
.hero-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.hero-card-shoe { font-size: 7rem; line-height: 1; margin-bottom: 24px; }
.hero-card-tag {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0a;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.hero-card-info h3 { margin-bottom: 4px; }
.hero-card-info p { color: var(--accent); font-weight: 700; font-size: 1.2rem; }

.hero-marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  background: var(--bg-alt);
}
.marquee-track {
  display: flex;
  gap: 24px;
  white-space: nowrap;
  animation: marquee 20s linear infinite;
}
.marquee-track span {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-muted);
  letter-spacing: 2px;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ===== Sections ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
}
.section-head.center { justify-content: center; text-align: center; }
.section-head.center .eyebrow { margin-bottom: 8px; }

/* ===== Product Grid ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.product-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.product-image {
  background: linear-gradient(145deg, #1e1e1e, #161616);
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  position: relative;
}
.product-tag {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--accent);
  color: #0a0a0a;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 20px;
}
.product-info { padding: 20px; }
.product-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.product-name { font-family: var(--font-head); font-weight: 600; font-size: 1.1rem; margin-bottom: 8px; }
.product-bottom { display: flex; align-items: center; justify-content: space-between; }
.product-price { font-weight: 700; font-size: 1.15rem; color: var(--accent); }
.product-rating { font-size: 0.85rem; color: var(--text-muted); }
.add-btn {
  background: var(--accent);
  color: #0a0a0a;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
}
.add-btn:hover { background: var(--accent-dark); }

/* ===== Features ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}
.feature-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.feature-icon { font-size: 2.5rem; margin-bottom: 16px; }
.feature-card h3 { margin-bottom: 8px; }

/* ===== Banner ===== */
.banner {
  background: linear-gradient(135deg, var(--surface), var(--bg-alt));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}
.banner-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
}
.banner-text h2 { margin-bottom: 12px; }
.banner-text p { margin-bottom: 24px; max-width: 400px; }
.banner-visual { font-size: 8rem; text-align: center; }

/* ===== Newsletter ===== */
.newsletter {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.newsletter h2 { margin-bottom: 12px; }
.newsletter p { margin-bottom: 24px; }
.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 440px;
  margin: 0 auto;
}
.newsletter-form input {
  flex: 1;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}
.newsletter-form input:focus { border-color: var(--accent); }

/* ===== Page Head ===== */
.page-head {
  padding: 140px 0 60px;
  text-align: center;
}
.page-head h1 { margin-bottom: 12px; }
.page-head p { font-size: 1.1rem; max-width: 500px; margin: 0 auto; }

/* ===== Shop Controls ===== */
.shop-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  padding: 8px 18px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}
.chip:hover { color: var(--text); }
.chip.active { background: var(--accent); color: #0a0a0a; border-color: var(--accent); }
.sort-select {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  outline: none;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}
.about-text h2 { margin-bottom: 16px; }
.about-text p { margin-bottom: 16px; font-size: 1.05rem; }
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover { border-color: var(--accent); }
.stat-number {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 4px;
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.value-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}
.value-card:hover { border-color: var(--accent); }
.value-card h3 { margin-bottom: 8px; }

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
}
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.contact-form .btn { width: 100%; }
.form-success {
  display: none;
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: rgba(196, 255, 61, 0.1);
  color: var(--accent);
  font-size: 0.9rem;
  text-align: center;
}
.form-success.show { display: block; }

.contact-info { display: flex; flex-direction: column; gap: 16px; }
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.info-card:hover { border-color: var(--accent); }
.info-icon { font-size: 1.8rem; margin-bottom: 12px; }
.info-card h3 { margin-bottom: 8px; }
.info-card p { font-size: 0.95rem; }

/* ===== Footer ===== */
footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding-top: 60px; }
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-col .logo { display: inline-block; margin-bottom: 12px; }
.footer-col p { font-size: 0.9rem; max-width: 240px; }
.footer-col h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; color: var(--text); }
.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--accent); }
.social { display: flex; gap: 16px; }
.social a { font-size: 0.9rem; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; }
.footer-bottom p { font-size: 0.85rem; text-align: center; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-inner, .banner-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-text p { margin-left: auto; margin-right: auto; }
  .hero-cta, .newsletter-form { justify-content: center; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  #nav { display: none; }
  #nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 24px;
    gap: 20px;
  }
  .menu-toggle { display: block; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-head.center { align-items: center; }
  .hero-card { width: 100%; max-width: 320px; }
  .newsletter-form { flex-direction: column; }
}