:root {
  --black: #0a0a0a;
  --white: #f5f5f0;
  --accent: #00e5a0;
  --accent2: #ff4d00;
  --gray: #1a1a1a;
  --gray2: #2a2a2a;
  --gray3: #3a3a3a;
  --text-muted: #888;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem;
  height: 64px;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #1f1f1f;
}
.logo {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.05em;
  color: var(--white);
  text-decoration: none;
}
.logo span { color: var(--accent); }
.nav-links {
  display: flex; align-items: center; gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.nav-right { display: flex; align-items: center; gap: 1rem; }
.cart-btn {
  background: var(--accent);
  color: var(--black);
  border: none;
  padding: 8px 20px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  transition: opacity 0.2s;
}
.cart-btn:hover { opacity: 0.85; }
.cart-count {
  background: var(--black);
  color: var(--accent);
  border-radius: 50%;
  width: 20px; height: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700;
}

/* ── BUTTONS ── */
.btn-primary {
  background: var(--accent);
  color: var(--black);
  border: none;
  padding: 14px 32px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: opacity 0.2s, transform 0.1s;
  text-decoration: none;
  display: inline-block;
}
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--gray3);
  padding: 14px 32px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: border-color 0.2s, transform 0.1s;
  text-decoration: none;
  display: inline-block;
}
.btn-outline:hover { border-color: var(--white); transform: translateY(-1px); }

/* ── SECTION ── */
.section { padding: 5rem 2rem; max-width: 1200px; margin: 0 auto; }
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 100px 2rem 4rem;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(0,229,160,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(255,77,0,0.05) 0%, transparent 60%);
}
.hero-grid {
  position: absolute; inset: 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: 60px 60px;
}
.hero-content {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: 8px;
}
.hero-eyebrow::before {
  content: '';
  display: block; width: 32px; height: 1px;
  background: var(--accent);
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(4rem, 8vw, 7rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
}
h1 .accent { color: var(--accent); }
.hero-sub {
  color: var(--text-muted);
  font-size: 18px;
  margin-bottom: 2.5rem;
  max-width: 440px;
  line-height: 1.7;
}
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 2rem; margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray2);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--white);
  line-height: 1;
}
.stat-label {
  font-size: 12px; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.1em; margin-top: 4px;
}

/* ── TRUST BAR ── */
.trust-bar {
  border-top: 1px solid var(--gray2);
  border-bottom: 1px solid var(--gray2);
  padding: 1rem 2rem;
  display: flex; align-items: center; justify-content: center; gap: 3rem;
  flex-wrap: wrap;
}
.trust-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--text-muted); font-weight: 500;
}
.crypto-badges { display: flex; align-items: center; gap: 8px; }
.crypto-badge {
  background: var(--gray2); border: 1px solid var(--gray3);
  border-radius: 4px; padding: 4px 10px;
  font-size: 11px; font-family: var(--font-mono); color: var(--text-muted);
}

/* ── FILTERS ── */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 2.5rem; }
.filter-btn {
  background: transparent; border: 1px solid var(--gray3);
  color: var(--text-muted); padding: 8px 20px; border-radius: 4px;
  font-family: var(--font-body); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all 0.2s;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--accent); border-color: var(--accent); color: var(--black);
}

/* ── PRODUCT GRID ── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.product-card {
  background: var(--gray); border: 1px solid var(--gray2);
  border-radius: 10px; overflow: hidden;
  transition: border-color 0.2s, transform 0.2s; cursor: pointer;
}
.product-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.product-img {
  height: 180px; background: var(--gray2);
  display: flex; align-items: center; justify-content: center;
  font-size: 4rem; position: relative;
}
.product-condition {
  position: absolute; top: 12px; left: 12px;
  font-size: 10px; font-family: var(--font-mono);
  padding: 4px 10px; border-radius: 3px;
  font-weight: 500; letter-spacing: 0.05em;
}
.cond-like-new { background: rgba(0,229,160,0.15); color: var(--accent); }
.cond-good { background: rgba(255,255,255,0.08); color: #aaa; }
.cond-fair { background: rgba(255,77,0,0.12); color: var(--accent2); }
.sold-badge {
  position: absolute; inset: 0;
  background: rgba(10,10,10,0.75);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 2rem;
  letter-spacing: 0.1em; color: var(--text-muted);
}
.product-info { padding: 16px; }
.product-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.product-specs { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; line-height: 1.5; }
.product-footer { display: flex; align-items: center; justify-content: space-between; }
.product-price { font-family: var(--font-mono); font-size: 1.3rem; font-weight: 500; }
.product-retail {
  font-size: 11px; color: var(--text-muted);
  text-decoration: line-through; margin-top: 2px; font-family: var(--font-mono);
}
.add-cart-btn {
  background: var(--accent); color: var(--black); border: none;
  width: 36px; height: 36px; border-radius: 4px;
  font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.2s; flex-shrink: 0;
}
.add-cart-btn:hover { opacity: 0.8; }
.add-cart-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ── CART DRAWER ── */
.cart-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  z-index: 200; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.cart-overlay.open { opacity: 1; pointer-events: all; }
.cart-drawer {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 420px; max-width: 100vw;
  background: var(--gray); border-left: 1px solid var(--gray2);
  z-index: 201; transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  display: flex; flex-direction: column;
}
.cart-drawer.open { transform: translateX(0); }
.cart-header {
  padding: 1.5rem; border-bottom: 1px solid var(--gray2);
  display: flex; align-items: center; justify-content: space-between;
}
.cart-title { font-family: var(--font-display); font-size: 1.8rem; letter-spacing: 0.05em; }
.close-btn {
  background: var(--gray2); border: none; color: var(--white);
  width: 36px; height: 36px; border-radius: 4px;
  font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.cart-items { flex: 1; overflow-y: auto; padding: 1rem 1.5rem; }
.cart-empty { text-align: center; padding: 3rem 1rem; color: var(--text-muted); font-size: 14px; }
.cart-empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.cart-item {
  display: flex; gap: 12px; align-items: center;
  padding: 12px 0; border-bottom: 1px solid var(--gray2);
}
.cart-item-icon {
  font-size: 1.8rem; width: 48px; height: 48px;
  background: var(--gray2); border-radius: 6px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.cart-item-info { flex: 1; }
.cart-item-name { font-size: 13px; font-weight: 600; }
.cart-item-price { font-family: var(--font-mono); font-size: 13px; color: var(--accent); margin-top: 3px; }
.cart-item-remove {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 1rem; padding: 4px; transition: color 0.2s;
}
.cart-item-remove:hover { color: var(--accent2); }
.cart-footer { padding: 1.5rem; border-top: 1px solid var(--gray2); }
.cart-total {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem;
}
.cart-total-label { font-size: 14px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.cart-total-amount { font-family: var(--font-mono); font-size: 1.6rem; font-weight: 500; }
.checkout-btn {
  width: 100%; background: var(--accent); color: var(--black); border: none;
  padding: 16px; border-radius: 6px; font-family: var(--font-body);
  font-weight: 700; font-size: 15px; cursor: pointer;
  letter-spacing: 0.08em; text-transform: uppercase;
  transition: opacity 0.2s; margin-bottom: 10px;
}
.checkout-btn:hover { opacity: 0.85; }
.checkout-crypto-btn {
  width: 100%; background: transparent; color: var(--white);
  border: 1px solid var(--gray3); padding: 14px; border-radius: 6px;
  font-family: var(--font-body); font-weight: 600; font-size: 14px;
  cursor: pointer; letter-spacing: 0.05em; transition: border-color 0.2s;
}
.checkout-crypto-btn:hover { border-color: var(--accent); color: var(--accent); }
.accepted-payments {
  display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; justify-content: center;
}
.pay-chip {
  background: var(--gray2); border: 1px solid var(--gray3);
  border-radius: 3px; padding: 3px 8px;
  font-size: 10px; font-family: var(--font-mono); color: var(--text-muted);
}

/* ── CHECKOUT MODAL ── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.85);
  z-index: 300; display: none; align-items: center; justify-content: center; padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--gray); border: 1px solid var(--gray2);
  border-radius: 12px; padding: 2rem; width: 100%; max-width: 480px;
  max-height: 90vh; overflow-y: auto;
}
.modal-title { font-family: var(--font-display); font-size: 2rem; margin-bottom: 1.5rem; letter-spacing: 0.05em; }
.pay-tabs { display: flex; gap: 8px; margin-bottom: 1.5rem; }
.pay-tab {
  flex: 1; padding: 10px; background: var(--gray2); border: 1px solid var(--gray3);
  border-radius: 6px; color: var(--text-muted); font-size: 13px; font-weight: 600;
  cursor: pointer; text-align: center; transition: all 0.2s;
}
.pay-tab.active { background: rgba(0,229,160,0.1); border-color: var(--accent); color: var(--accent); }
.pay-panel { display: none; }
.pay-panel.active { display: block; }
.form-group { margin-bottom: 1rem; }
label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.08em; }
input, select {
  width: 100%; background: var(--gray2); border: 1px solid var(--gray3);
  border-radius: 6px; padding: 12px 14px;
  color: var(--white); font-family: var(--font-body); font-size: 14px; transition: border-color 0.2s;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.crypto-option {
  background: var(--gray2); border: 1px solid var(--gray3);
  border-radius: 8px; padding: 14px 16px;
  display: flex; align-items: center; gap: 12px;
  cursor: pointer; margin-bottom: 8px; transition: border-color 0.2s;
}
.crypto-option:hover, .crypto-option.selected { border-color: var(--accent); }
.crypto-name { font-weight: 600; font-size: 14px; }
.crypto-desc { font-size: 12px; color: var(--text-muted); }
.crypto-check { margin-left: auto; color: var(--accent); font-size: 1.2rem; display: none; }
.crypto-option.selected .crypto-check { display: block; }
.wallet-address {
  background: var(--black); border: 1px solid var(--gray3);
  border-radius: 6px; padding: 14px; font-family: var(--font-mono);
  font-size: 11px; color: var(--accent); word-break: break-all; margin: 1rem 0;
}
.submit-btn {
  width: 100%; background: var(--accent); color: var(--black); border: none;
  padding: 16px; border-radius: 6px; font-family: var(--font-body);
  font-weight: 700; font-size: 15px; cursor: pointer; margin-top: 1rem;
  letter-spacing: 0.08em; text-transform: uppercase; transition: opacity 0.2s;
}
.submit-btn:hover { opacity: 0.85; }
.modal-close {
  float: right; background: var(--gray2); border: none;
  color: var(--white); width: 32px; height: 32px;
  border-radius: 4px; cursor: pointer; font-size: 1rem;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--gray2);
  padding: 3rem 2rem; text-align: center;
}
.footer-logo { font-family: var(--font-display); font-size: 2.5rem; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.footer-tagline { color: var(--text-muted); font-size: 14px; margin-bottom: 1.5rem; }
.footer-links { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2rem; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { font-size: 12px; color: var(--gray3); }

/* ── TOAST ── */
.toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(100px);
  background: var(--accent); color: var(--black);
  padding: 12px 24px; border-radius: 6px;
  font-weight: 700; font-size: 14px;
  z-index: 400; transition: transform 0.3s; white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .nav-links { display: none; }
  h1 { font-size: 3.5rem; }
}