/* ============================================================
   VELO'D — DIGITAL VAPOR / RETRO WAVE DESIGN SYSTEM
   Dark-base, neon-accent cycling accessories storefront
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg:         #0c0c18;
  --color-bg-raised:  #1a1a2e;
  --color-bg-card:    #22223a;
  --color-fg:         #eaeaf0;
  --color-subtle:     #9898b8;
  --color-border:     rgba(255, 255, 255, 0.12);
  --color-white:      #ffffff;
  --color-dark:       #08081a;
  --color-success:    #00e68a;

  /* Neon accents */
  --neon-cyan:        #00f0ff;
  --neon-pink:        #ff2afc;
  --neon-purple:      #8b5cf6;
  --neon-green:       #00e68a;

  /* Gradients */
  --grad-neon:        linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
  --grad-subtle:      linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  --grad-card:        linear-gradient(180deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0) 100%);

  /* Glow */
  --glow-cyan:        0 0 20px rgba(0, 240, 255, 0.3);
  --glow-pink:        0 0 20px rgba(255, 42, 252, 0.3);

  --font-sans:    'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;

  --radius:       12px;
  --radius-sm:    6px;
  --radius-btn:   8px;

  --max-width:    1200px;
  --nav-height:   64px;
  --announce-h:   36px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-fg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---------- Utility ---------- */
::selection {
  background: var(--neon-cyan);
  color: var(--color-dark);
}

/* ---------- Announcement Bar ---------- */
.announce-bar {
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
  color: var(--color-dark);
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 40px;
  position: relative;
  height: var(--announce-h);
  display: flex;
  align-items: center;
  justify-content: center;
}
.announce-close {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-dark);
  font-size: 18px;
  line-height: 1;
  opacity: 0.6;
}
.announce-close:hover { opacity: 1; }

/* ---------- Site Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 18, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-height);
}
.site-logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-right { display: flex; align-items: center; gap: 6px; }
.nav-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-subtle);
  transition: color 0.2s, background 0.2s;
}
.nav-icon:hover { color: var(--neon-cyan); background: rgba(0, 240, 255, 0.08); }
.cart-btn { position: relative; }
.cart-count {
  position: absolute;
  top: 2px; right: 2px;
  background: var(--neon-pink);
  color: var(--color-dark);
  font-size: 10px;
  font-weight: 700;
  min-width: 18px; height: 18px;
  border-radius: 99px;
  display: flex; align-items: center; justify-content: center;
}

/* Hamburger */
.nav-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-fg);
  border-radius: 2px;
  transition: background 0.2s;
}
.nav-menu-toggle:hover span { background: var(--neon-cyan); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 0; left: 0;
  width: 300px; height: 100vh;
  background: var(--color-bg-raised);
  z-index: 200;
  padding: 24px;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  border-right: 1px solid var(--color-border);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu-close {
  font-size: 28px;
  color: var(--color-subtle);
  margin-bottom: 24px;
}
.mobile-menu-close:hover { color: var(--neon-pink); }
.mobile-nav-links { display: flex; flex-direction: column; gap: 2px; }
.mobile-nav-links a {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
}
.mobile-nav-links a:hover {
  background: rgba(0, 240, 255, 0.08);
  color: var(--neon-cyan);
}
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 190;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.mobile-overlay.show { opacity: 1; pointer-events: all; }

/* ---------- Search Bar ---------- */
.search-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 150;
  background: var(--color-bg-raised);
  padding: 16px 24px;
  display: flex;
  gap: 10px;
  align-items: center;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
  border-bottom: 1px solid var(--color-border);
}
.search-bar.open { transform: translateY(0); }
.search-bar input {
  flex: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 15px;
  color: var(--color-fg);
  outline: none;
}
.search-bar input:focus { border-color: var(--neon-cyan); box-shadow: var(--glow-cyan); }
.search-bar button {
  padding: 10px 20px;
  background: var(--neon-cyan);
  color: var(--color-dark);
  font-weight: 700;
  font-size: 13px;
  border-radius: var(--radius-btn);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.search-close { background: none !important; color: var(--color-subtle) !important; font-size: 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--radius-btn);
  transition: all 0.2s ease;
  cursor: pointer;
  text-align: center;
}
.btn-outline {
  border: 1.5px solid var(--neon-cyan);
  color: var(--neon-cyan);
  background: transparent;
}
.btn-outline:hover {
  background: var(--neon-cyan);
  color: var(--color-dark);
  box-shadow: var(--glow-cyan);
}
.btn-solid {
  background: var(--neon-cyan);
  color: var(--color-dark);
  border: none;
}
.btn-solid:hover {
  background: #33f5ff;
  box-shadow: var(--glow-cyan);
}

/* ---------- Hero Banner ---------- */
.hero-banner {
  position: relative;
  height: 90vh;
  min-height: 500px;
  max-height: 900px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.hero-image-wrap {
  position: absolute;
  inset: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35) saturate(0.7);
}
.hero-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 18, 0.2) 0%,
    rgba(10, 10, 18, 0.5) 50%,
    rgba(10, 10, 18, 0.95) 100%
  );
}
.hero-text {
  position: relative;
  z-index: 2;
  padding: 0 clamp(24px, 5vw, 80px) 60px;
  max-width: 700px;
}
.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 7vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--color-subtle);
  margin-bottom: 28px;
  max-width: 480px;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Split Banner ---------- */
.split-banner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  min-height: 480px;
  overflow: hidden;
  border-top: 1px solid rgba(0, 240, 255, 0.15);
}
.split-banner--flip { grid-template-columns: 1fr 1.5fr; }
.split-banner--flip .split-image { order: 2; }
.split-banner--flip .split-text { order: 1; }
.split-image {
  position: relative;
  overflow: hidden;
}
.split-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7) saturate(0.8);
  transition: filter 0.4s;
}
.split-banner:hover .split-image img {
  filter: brightness(0.85) saturate(1);
}
.split-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(255, 42, 252, 0.1));
  pointer-events: none;
}
.split-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(32px, 5vw, 64px);
  background: var(--color-bg-raised);
}
.split-text h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.split-text p {
  color: var(--color-subtle);
  font-size: 15px;
  margin-bottom: 24px;
  max-width: 360px;
}

/* ---------- Brand Story ---------- */
.brand-story {
  background: var(--color-dark);
  padding: clamp(48px, 8vw, 100px) 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.brand-story::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 240, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(255, 42, 252, 0.12) 0%, transparent 50%);
  pointer-events: none;
}
.brand-story-inner {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
}
.brand-story h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 20px;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.brand-story p {
  font-size: 16px;
  color: var(--color-subtle);
  line-height: 1.7;
  margin-bottom: 20px;
}
.brand-note {
  display: inline-block;
  font-size: 13px;
  color: var(--neon-cyan);
  padding: 8px 16px;
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-sm);
  margin-top: 8px;
}

/* ---------- Open Source Callout ---------- */
.open-source-callout {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: clamp(40px, 6vw, 72px) 24px;
  text-align: center;
}
.open-source-callout h3 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.open-source-callout p {
  color: var(--color-subtle);
  font-size: 15px;
  max-width: 560px;
  margin: 0 auto 20px;
}
.open-source-callout a {
  color: var(--neon-cyan);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s;
}
.open-source-callout a:hover { color: var(--neon-pink); }

/* ---------- Product Section ---------- */
.product-section {
  padding: clamp(48px, 6vw, 80px) 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-header {
  margin-bottom: 32px;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.loading-msg {
  color: var(--color-subtle);
  font-size: 14px;
  padding: 40px 0;
}
.product-card {
  display: block;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.product-card:hover {
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 4px 24px rgba(0, 240, 255, 0.1);
  transform: translateY(-3px);
}
.product-card-img {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-bg-raised);
}
.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.85) saturate(0.85);
  transition: filter 0.3s;
}
.product-card:hover .product-card-img img {
  filter: brightness(1) saturate(1);
}
.product-card-info { padding: 16px 18px 20px; }
.product-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}
.product-card-sub {
  font-size: 13px;
  color: var(--color-subtle);
  margin-top: 3px;
}
.product-card-price {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  margin-top: 10px;
  color: var(--neon-cyan);
}

/* ---------- Product Detail Page ---------- */
.product-page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.product-gallery { position: relative; }
.product-main-img {
  width: 100%;
  border-radius: var(--radius);
  background: var(--color-bg-raised);
  filter: brightness(0.8);
}
.product-thumbs { display: flex; gap: 8px; margin-top: 12px; }
.product-thumb {
  width: 64px; height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.5;
  transition: opacity 0.2s, border-color 0.2s;
}
.product-thumb.active, .product-thumb:hover { opacity: 1; border-color: var(--neon-cyan); }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-info { display: flex; flex-direction: column; gap: 20px; }
.product-info h1 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.product-price {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--neon-cyan);
}
.product-desc {
  color: var(--color-subtle);
  font-size: 15px;
  line-height: 1.7;
}
.qty-row { display: flex; align-items: center; gap: 16px; }
.qty-btn {
  width: 40px; height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: var(--color-fg);
  transition: border-color 0.2s, background 0.2s;
}
.qty-btn:hover { border-color: var(--neon-cyan); background: rgba(0, 240, 255, 0.08); }
.qty-num {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  min-width: 24px;
  text-align: center;
}
.add-to-order { width: 100%; }

/* ---------- Identity Strip ---------- */
.identity-strip {
  background: var(--color-dark);
  padding: clamp(48px, 6vw, 80px) 24px;
  text-align: center;
  position: relative;
}
.identity-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.12) 0%, transparent 60%);
  pointer-events: none;
}
.identity-text {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}
.identity-text p {
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-subtle);
}
.identity-tagline {
  display: block;
  margin-top: 16px;
  font-size: 15px;
  color: var(--neon-purple);
  letter-spacing: 0.04em;
}

/* ---------- Materials Strip ---------- */
.materials-strip {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-raised);
  padding: 40px 24px;
}
.materials-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}
.mat-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--neon-cyan);
  margin-bottom: 6px;
}
.mat-item {
  font-size: 13px;
  color: var(--color-subtle);
  line-height: 1.5;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  border-top: 1px solid var(--color-border);
  padding: 56px 24px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 48px;
}
.footer-brand { max-width: 340px; }
.footer-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 8px;
}
.footer-brand > p {
  font-size: 13px;
  color: var(--color-subtle);
  margin-bottom: 16px;
}

/* Newsletter form */
.newsletter-form {
  display: flex;
  gap: 0;
  position: relative;
}
.newsletter-form input[type="email"] {
  flex: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-fg);
  outline: none;
  font-family: var(--font-sans);
}
.newsletter-form input:focus { border-color: var(--neon-cyan); }
.newsletter-form button {
  background: var(--neon-cyan);
  color: var(--color-dark);
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 16px;
  transition: background 0.2s;
}
.newsletter-form button:hover { background: #33f5ff; }

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: right;
}
.footer-links a {
  font-size: 14px;
  color: var(--color-subtle);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--neon-cyan); }
.footer-bottom {
  text-align: center;
  padding: 24px 0;
  margin-top: 40px;
  border-top: 1px solid var(--color-border);
}
.footer-bottom p {
  font-size: 12px;
  color: var(--color-subtle);
}

/* ---------- Cart Drawer ---------- */
.cart-drawer {
  position: fixed;
  top: 0; right: 0;
  width: min(400px, 90vw);
  height: 100vh;
  background: var(--color-bg-raised);
  z-index: 200;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--color-border);
}
.cart-drawer.open { transform: translateX(0); }
.cart-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}
.cart-drawer-header h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
}
.cart-drawer-header button { font-size: 28px; color: var(--color-subtle); }
.cart-drawer-header button:hover { color: var(--neon-pink); }
.cart-items { flex: 1; overflow-y: auto; padding: 16px 24px; }
.cart-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}
.cart-item-img {
  width: 56px; height: 56px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--color-bg);
  filter: brightness(0.8);
}
.cart-item-info { flex: 1; }
.cart-item-title { font-weight: 600; font-size: 14px; }
.cart-item-price { font-size: 13px; color: var(--color-subtle); margin-top: 2px; }
.cart-item-remove {
  color: var(--color-subtle);
  font-size: 22px;
  transition: color 0.2s;
}
.cart-item-remove:hover { color: var(--neon-pink); }
.cart-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cart-total {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
}
.cart-total strong { color: var(--neon-cyan); }
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 190;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.cart-overlay.show { opacity: 1; pointer-events: all; }

/* ---------- Checkout Page ---------- */
.checkout-page {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
.checkout-page h1 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.order-success {
  text-align: center;
  padding: 60px 24px;
}
.order-success h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}
.order-success p {
  color: var(--color-subtle);
  font-size: 15px;
  margin-bottom: 28px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}
.order-summary {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}
.order-summary h2 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.order-line {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border);
}
.order-line:last-child {
  border-bottom: none;
  font-weight: 700;
  padding-top: 14px;
  color: var(--neon-cyan);
}

/* Bitcoin notice */
.bitcoin-notice {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--color-bg-card);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 24px;
}
.bitcoin-notice > span {
  font-size: 24px;
  color: var(--neon-cyan);
  flex-shrink: 0;
}
.bitcoin-notice strong { color: var(--color-fg); }
.bitcoin-notice div { font-size: 13px; color: var(--color-subtle); line-height: 1.6; }

/* Checkout form */
.contact-form h2 { font-family: var(--font-display); }
.contact-form label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-subtle);
  margin-bottom: 6px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 15px;
  color: var(--color-fg);
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}
.contact-form textarea { min-height: 80px; resize: vertical; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { margin-bottom: 16px; }
.submit-order { width: 100%; margin-top: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .split-banner,
  .split-banner--flip {
    grid-template-columns: 1fr;
  }
  .split-banner--flip .split-image { order: 0; }
  .split-banner--flip .split-text { order: 0; }
  .split-banner { min-height: auto; }
  .split-image { min-height: 280px; }

  .product-page {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .materials-inner {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 32px;
  }
  .footer-links {
    text-align: left;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px 20px;
  }

  .form-row { grid-template-columns: 1fr; }
  .hero-banner { height: 70vh; }
}

@media (max-width: 480px) {
  .materials-inner { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .hero-btns .btn { width: 100%; text-align: center; }
}

/* ---------- Tier selector (product page) ---------- */
.tier-card {
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  padding: 16px 20px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.tier-card:hover {
  border-color: rgba(0, 240, 255, 0.4);
}
.tier-card.tier-active {
  border-color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.06);
}
.tier-card.tier-disabled {
  opacity: 0.4;
  cursor: default;
}
.tier-radio {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--color-subtle);
  flex-shrink: 0;
  transition: border-color 0.2s;
}
.tier-active .tier-radio {
  border-color: var(--neon-cyan);
}
.tier-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--neon-cyan);
}

/* ---------- STL download links (DIY tier) ---------- */
.stl-downloads { display: flex; flex-direction: column; gap: 6px; max-height: 300px; overflow-y: auto; }
.stl-dl-link {
  display: block; padding: 10px 16px; font-size: 13px;
  border: 1.5px solid #ff2afc; border-radius: 8px; color: #ff2afc;
  text-decoration: none; text-align: center; transition: all 0.2s;
}
.stl-dl-link:hover { background: rgba(255,42,252,0.1); }