:root {
  --ink: #0a0e1a;
  --navy: #0f1c3f;
  --navy-2: #142450;
  --steel: #3a4a63;
  --steel-2: #24314a;
  --silver: #c8cdd6;
  --platinum: #edeff3;
  --white: #ffffff;
  --cyan: #5ec8e8;
  --cyan-dim: #2f6f85;
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--platinum);
  font-family: var(--font-body);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

img { display: block; max-width: 100%; }

/* ---------- topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--steel-2);
}
.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  padding: 4px 8px;
}
.brand-mark.small { display: inline-block; margin-bottom: 8px; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 15px;
}
.topnav { display: flex; gap: 24px; margin-left: auto; }
.topnav a {
  font-size: 14px;
  color: var(--silver);
  letter-spacing: 0.03em;
}
.topnav a:hover { color: var(--cyan); }
.topbar-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--silver);
  border-left: 1px solid var(--steel-2);
  padding-left: 24px;
}
.topbar-count span { color: var(--cyan); font-weight: 500; }

.cart-btn {
  position: relative;
  background: transparent;
  border: 1px solid var(--steel);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  cursor: pointer;
  margin-left: 20px;
}
.cart-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.cart-count {
  display: inline-block;
  min-width: 18px;
  background: var(--cyan);
  color: var(--ink);
  border-radius: 9px;
  font-size: 11px;
  font-weight: 700;
  padding: 0 5px;
  margin-left: 8px;
}

.cart-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,14,26,0.7);
  z-index: 110;
}
.cart-backdrop.open { display: block; }
.cart-drawer {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 380px;
  max-width: 92vw;
  background: var(--navy);
  border-left: 1px solid var(--cyan-dim);
  display: flex;
  flex-direction: column;
}
.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--steel-2);
}
.cart-header h3 {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--white);
  margin: 0;
}
.cart-close {
  background: none;
  border: 1px solid var(--steel);
  color: var(--silver);
  width: 28px;
  height: 28px;
  cursor: pointer;
}
.cart-close:hover { border-color: var(--cyan); color: var(--cyan); }

.cart-items { flex: 1; overflow-y: auto; padding: 12px 24px; }
.cart-row {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--steel-2);
}
.cart-row img { width: 44px; height: 66px; object-fit: cover; border: 1px solid var(--steel-2); flex-shrink: 0; }
.cart-row-info { flex: 1; min-width: 0; }
.cart-row-title { font-size: 13px; color: var(--white); margin: 0 0 4px; line-height: 1.3; }
.cart-row-price { font-family: var(--font-mono); font-size: 12px; color: var(--cyan); margin: 0; }
.cart-row-remove {
  background: none;
  border: none;
  color: var(--steel);
  cursor: pointer;
  font-size: 13px;
  text-decoration: underline;
  padding: 0;
  margin-top: 4px;
}
.cart-row-remove:hover { color: var(--cyan); }

.cart-empty { display: none; text-align: center; color: var(--silver); font-size: 14px; padding: 40px 24px; }

.cart-footer { border-top: 1px solid var(--steel-2); padding: 20px 24px; }
.cart-line {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--silver);
  margin-bottom: 8px;
  font-family: var(--font-mono);
}
.cart-total { color: var(--white); font-size: 15px; font-weight: 600; border-top: 1px solid var(--steel-2); padding-top: 10px; margin-top: 4px; }
.cart-checkout-btn { width: 100%; text-align: center; margin-top: 14px; }
.cart-checkout-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.cart-note { font-size: 11px; color: var(--steel); margin: 12px 0 0; text-align: center; }

/* ---------- hero ---------- */
.hero {
  padding: 120px 32px 100px;
  display: flex;
  justify-content: center;
  background:
    linear-gradient(180deg, rgba(15,28,63,0.5), transparent 60%),
    var(--ink);
  border-bottom: 1px solid var(--steel-2);
}
.hero-frame {
  position: relative;
  max-width: 720px;
  padding: 48px;
  text-align: center;
}
.corner {
  position: absolute;
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--cyan);
}
.corner-tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.corner-tr { top: 0; right: 0; border-left: none; border-bottom: none; }
.corner-bl { bottom: 0; left: 0; border-right: none; border-top: none; }
.corner-br { bottom: 0; right: 0; border-left: none; border-top: none; }

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--cyan);
  margin: 0 0 20px;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(48px, 9vw, 88px);
  line-height: 0.95;
  letter-spacing: 0.01em;
  margin: 0 0 24px;
  color: var(--white);
}
.hero-sub {
  color: var(--silver);
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto 40px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 40px;
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  color: var(--cyan);
}
.stat-label {
  font-size: 12px;
  color: var(--silver);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

.btn-primary {
  display: inline-block;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 14px 32px;
  font-size: 15px;
  transition: background 0.15s ease;
}
.btn-primary:hover { background: #7fd6f0; }

.btn-secondary {
  display: block;
  margin: 40px auto 0;
  background: transparent;
  border: 1px solid var(--steel);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 12px 28px;
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- catalog ---------- */
.catalog { max-width: 1280px; margin: 0 auto; padding: 80px 32px 40px; }
.catalog-header { margin-bottom: 32px; }
.section-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
  margin: 0 0 8px;
}
.section-sub { color: var(--silver); font-size: 15px; margin: 0; }

.controls {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 8px;
}
.control {
  background: var(--navy);
  border: 1px solid var(--steel-2);
  color: var(--platinum);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 12px 14px;
}
.control:focus { outline: none; border-color: var(--cyan); }
.control::placeholder { color: var(--silver); }

.result-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--silver);
  margin: 16px 0 24px;
}
.result-count span { color: var(--cyan); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  background: var(--navy);
  border: 1px solid var(--steel-2);
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--cyan); transform: translateY(-2px); }

.card-frame {
  position: relative;
  aspect-ratio: 2/3;
  overflow: hidden;
  background: var(--steel-2);
}
.card-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card-corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--cyan);
  opacity: 0;
  transition: opacity 0.15s ease;
}
.card:hover .card-corner { opacity: 1; }
.cc-tl { top: 6px; left: 6px; border-right: none; border-bottom: none; }
.cc-tr { top: 6px; right: 6px; border-left: none; border-bottom: none; }
.cc-bl { bottom: 6px; left: 6px; border-right: none; border-top: none; }
.cc-br { bottom: 6px; right: 6px; border-left: none; border-top: none; }

.card-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(10,14,26,0.85);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--cyan-dim);
}
.card-badge-slab {
  color: #f0c96b;
  border-color: #8a6d2f;
}
.card-badge-key-2 {
  top: 32px;
}

.card-body { padding: 14px 16px 16px; }
.card-file {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  margin: 0 0 6px;
  letter-spacing: 0.05em;
}
.card-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--white);
  margin: 0 0 4px;
  line-height: 1.25;
}
.card-issue { color: var(--cyan); font-weight: 600; }
.card-meta {
  font-size: 12px;
  color: var(--silver);
  margin: 0 0 10px;
}
.card-price {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  border-top: 1px solid var(--steel-2);
  padding-top: 10px;
  margin: 0;
}
.card-price-tbd { color: var(--silver); }

.buy-now-form {
  border-top: 1px solid var(--steel-2);
  padding-top: 10px;
  margin: 0;
}
.buy-now-btn {
  width: 100%;
  background: var(--cyan);
  color: var(--ink);
  border: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 9px 10px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.buy-now-btn:hover { background: #7fd6f0; }
.buy-now-btn-lg {
  font-size: 14px;
  padding: 14px 16px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.empty-state { text-align: center; padding: 60px 0; color: var(--silver); }

/* ---------- about ---------- */
.about { background: var(--navy); border-top: 1px solid var(--steel-2); border-bottom: 1px solid var(--steel-2); }
.about-inner { max-width: 900px; margin: 0 auto; padding: 100px 32px; text-align: center; }
.about-inner > p { color: var(--silver); font-size: 16px; max-width: 640px; margin: 0 auto 48px; }
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: left;
}
.about-card {
  border: 1px solid var(--steel-2);
  padding: 24px;
}
.about-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--cyan);
  margin: 0 0 10px;
  font-weight: 500;
}
.about-card p { font-size: 14px; color: var(--silver); margin: 0; }

/* ---------- footer ---------- */
footer { padding: 60px 32px; }
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-tag { font-size: 13px; color: var(--silver); margin: 0; }
.footer-note { font-size: 13px; color: var(--steel); max-width: 380px; margin: 0; }

/* ---------- modal ---------- */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,14,26,0.85);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--navy);
  border: 1px solid var(--cyan-dim);
  max-width: 720px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 32px;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: 1px solid var(--steel);
  color: var(--silver);
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 16px;
}
.modal-close:hover { border-color: var(--cyan); color: var(--cyan); }
.modal-grid { display: grid; grid-template-columns: 200px 1fr; gap: 28px; }
.modal-grid img { width: 100%; border: 1px solid var(--steel-2); }
.modal-file { font-family: var(--font-mono); font-size: 11px; color: var(--cyan); margin: 0 0 10px; }
.modal-title { font-family: var(--font-display); font-size: 24px; color: var(--white); margin: 0 0 4px; }
.modal-story { color: var(--silver); font-size: 14px; margin: 0 0 20px; }
.modal-specs { width: 100%; border-collapse: collapse; font-size: 13px; }
.modal-specs tr { border-bottom: 1px solid var(--steel-2); }
.modal-specs td { padding: 8px 0; }
.modal-specs td:first-child { color: var(--steel); font-family: var(--font-mono); width: 130px; }
.modal-specs td:last-child { color: var(--platinum); }
.modal-synopsis { margin-top: 16px; font-size: 14px; color: var(--silver); font-style: italic; }
.modal-price { margin-top: 20px; font-family: var(--font-mono); font-size: 18px; color: var(--cyan); }
.modal-price-tbd { color: var(--silver); font-size: 14px; }
.modal .buy-now-form { margin-top: 20px; border-top: none; padding-top: 0; }

@media (max-width: 720px) {
  .controls { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .modal-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
}