/* ============================================
   INTERFRED.NET - Stylesheet
   ============================================ */

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0d1526;
  --bg-card: #111b2e;
  --bg-card-hover: #162240;
  --accent-green: #00ff88;
  --accent-cyan: #00ccff;
  --accent-purple: #7b2fff;
  --text-primary: #e0e8f0;
  --text-secondary: #8899aa;
  --text-muted: #556677;
  --border-color: #1a2a40;
  --border-glow: rgba(0, 204, 255, 0.3);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --radius: 8px;
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Scanline effect */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 204, 255, 0.015) 2px,
    rgba(0, 204, 255, 0.015) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent-green); }

/* ---- NAVIGATION ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--accent-green);
  text-decoration: none;
}
.nav-logo img {
  width: 36px;
  height: 36px;
}
.nav-logo:hover { color: var(--accent-cyan); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 0;
}

.nav-links a {
  display: block;
  padding: 0 1rem;
  height: 64px;
  line-height: 64px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ---- HERO ---- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
  padding: 4rem 2rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(0, 255, 136, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(123, 47, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(0, 204, 255, 0.05) 0%, transparent 70%);
}

/* Animated grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 204, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 204, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-mascot {
  width: 220px;
  height: 220px;
  margin: 0 auto 2rem;
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero .terminal-text {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-green);
  opacity: 0.7;
}
.hero .terminal-text .cursor {
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  background: transparent;
  color: var(--text-primary);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
  color: var(--bg-primary);
  border-color: var(--accent-green);
  font-weight: 600;
}
.btn-primary:hover {
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
  transform: translateY(-2px);
  color: var(--bg-primary);
}

.btn-secondary {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}
.btn-secondary:hover {
  background: rgba(0, 204, 255, 0.1);
  box-shadow: 0 0 15px rgba(0, 204, 255, 0.2);
  color: var(--accent-cyan);
}

.btn-danger {
  border-color: #ff4466;
  color: #ff4466;
}
.btn-danger:hover {
  background: rgba(255, 68, 102, 0.1);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

/* ---- SECTIONS ---- */
.section {
  padding: 5rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-family: var(--font-mono);
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--accent-cyan);
}

.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), var(--accent-cyan), var(--border-color), transparent);
  margin: 0;
}

/* ---- CARDS ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan), var(--accent-purple));
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 204, 255, 0.08);
}
.card:hover::before { opacity: 1; }

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent-green);
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ---- INFO BOX ---- */
.info-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent-cyan);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}
.info-box h3 {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}
.info-box p {
  color: var(--text-secondary);
}

/* ---- FORMS ---- */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-green);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 204, 255, 0.15);
}

.form-control::placeholder {
  color: var(--text-muted);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2300ccff' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* ---- SHOP ---- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.product-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 204, 255, 0.08);
}

.product-image {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
  border-bottom: 1px solid var(--border-color);
}

.product-info {
  padding: 1.5rem;
}

.product-info h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.product-info .price {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--accent-green);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.product-info .desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* ---- CART ---- */
.cart-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}
.cart-item:last-child { border-bottom: none; }

.cart-item-info {
  flex: 1;
}
.cart-item-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.cart-item-price {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.cart-total {
  display: flex;
  justify-content: space-between;
  padding: 1rem 0;
  margin-top: 1rem;
  border-top: 2px solid var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
}

.cart-empty {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.cart-badge {
  background: var(--accent-green);
  color: var(--bg-primary);
  font-size: 0.7rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 4px;
  vertical-align: super;
}

/* ---- DEMO MODAL ---- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--accent-cyan);
  border-radius: 12px;
  padding: 3rem;
  max-width: 500px;
  text-align: center;
  box-shadow: 0 0 40px rgba(0, 204, 255, 0.2);
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal h2 {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 1rem;
}
.modal p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}
.modal .demo-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* ---- STATUS INDICATORS ---- */
.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.status-dot.green { background: var(--accent-green); }
.status-dot.cyan { background: var(--accent-cyan); }
.status-dot.purple { background: var(--accent-purple); }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---- DATA TABLE ---- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.data-table th {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border-color);
}
.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}
.data-table tr:hover td {
  background: rgba(0, 204, 255, 0.03);
}

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.footer-links a:hover { color: var(--accent-cyan); }

/* ---- PAGES ---- */
.page-header {
  padding: 4rem 2rem 2rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(0, 204, 255, 0.05) 0%, transparent 100%);
  border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}
.page-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.content-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

.content-full {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

/* ---- TAXONOMY ---- */
.taxonomy-table {
  width: 100%;
  margin: 2rem 0;
}
.taxonomy-table td {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}
.taxonomy-table td:first-child {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  width: 180px;
  font-size: 0.85rem;
}

/* ---- TIMELINE ---- */
.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-green), var(--accent-cyan), var(--accent-purple));
}
.timeline-item {
  position: relative;
  padding: 0 0 2rem 1.5rem;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-cyan);
  border: 2px solid var(--bg-primary);
  margin-left: -4px;
}
.timeline-item h4 {
  font-family: var(--font-mono);
  color: var(--accent-green);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}
.timeline-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ---- TOAST ---- */
.toast {
  position: fixed;
  bottom: 100px;
  right: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--accent-green);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-green);
  z-index: 500;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 255, 136, 0.15);
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ---- SUCCESS MESSAGE ---- */
.success-message {
  display: none;
  text-align: center;
  padding: 3rem;
}
.success-message.show { display: block; }
.success-message .check {
  font-size: 3rem;
  margin-bottom: 1rem;
}
.success-message h3 {
  font-family: var(--font-mono);
  color: var(--accent-green);
  margin-bottom: 0.5rem;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
  }
  .nav-links.open a {
    height: auto;
    line-height: normal;
    padding: 1rem 2rem;
  }
  .hero-mascot { width: 150px; height: 150px; }
  .content-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
}