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

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface2: #263348;
  --border: #334155;
  --accent: #f97316;
  --accent-dark: #ea6c0a;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --radius: 12px;
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
}

/* NAV */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}
.logo span { color: var(--accent); }
.btn-nav {
  padding: 8px 18px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: background 0.15s;
}
.btn-nav:hover { background: var(--accent-dark); }

/* HERO */
.hero {
  position: relative;
  overflow: hidden;
  padding: 140px 24px 100px;
  text-align: center;
}
.hero-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(249,115,22,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  border: 1px solid rgba(249,115,22,0.35);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-full { width: 100%; text-align: center; padding: 16px; font-size: 1.05rem; }

/* SECTIONS */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.features, .how, .demo-section {
  padding: 90px 0;
}
.features { border-top: 1px solid var(--border); }
.how { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.demo-section { border-top: 1px solid var(--border); }

h2 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 12px;
}
.section-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 52px;
  max-width: 540px;
}

/* FEATURES GRID */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover {
  border-color: rgba(249,115,22,0.4);
  transform: translateY(-2px);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(249,115,22,0.1);
  border: 1px solid rgba(249,115,22,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* HOW SECTION */
.how-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 768px) { .how-inner { grid-template-columns: 1fr; } }
.how-text h2 { margin-bottom: 16px; }
.how-text p {
  color: var(--text-muted);
  font-size: 0.975rem;
  line-height: 1.75;
  margin-bottom: 24px;
}
.how-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.how-list li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}
.how-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

/* MOCK SCREEN */
.mock-screen {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.mock-bar {
  background: var(--surface2);
  padding: 10px 14px;
  display: flex;
  gap: 6px;
  align-items: center;
  border-bottom: 1px solid var(--border);
}
.mock-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.mock-dot.red { background: #ff5f57; }
.mock-dot.yellow { background: #febc2e; }
.mock-dot.green { background: #28c840; }
.mock-body { padding: 16px; }
.mock-cat-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.mock-cat {
  padding: 5px 12px;
  border-radius: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
}
.mock-cat.active {
  background: rgba(249,115,22,0.15);
  border-color: rgba(249,115,22,0.4);
  color: var(--accent);
  font-weight: 600;
}
.mock-items { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.mock-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.mock-thumb {
  width: 36px; height: 36px;
  border-radius: 6px;
  background: #2a3a50;
  flex-shrink: 0;
}
.mock-thumb.t2 { background: #2a3a40; }
.mock-thumb.t3 { background: #38302a; }
.mock-item-name { font-size: 0.8rem; font-weight: 600; }
.mock-item-price { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.mock-cart {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}
.mock-cart-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 3px 0;
}
.mock-cart-total {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  padding-top: 8px;
  margin-top: 6px;
  border-top: 1px solid var(--border);
}

/* DEMO FORM */
.demo-header { text-align: center; margin-bottom: 44px; }
.demo-header .section-sub { margin: 0 auto; }
.booking-form {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}
.optional { font-weight: 400; }
input, select, textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color 0.15s;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
input::placeholder, textarea::placeholder { color: #4b5d72; }
textarea { resize: vertical; }
select { appearance: none; cursor: pointer; }
.form-msg {
  text-align: center;
  font-size: 0.9rem;
  min-height: 24px;
  padding: 4px 0;
}
.form-msg.success { color: #34d399; }
.form-msg.error { color: #f87171; }

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-logo { font-size: 1.1rem; }
.footer-copy { font-size: 0.85rem; color: var(--text-muted); }

@media (max-width: 480px) {
  .hero { padding: 110px 20px 70px; }
  .features, .how, .demo-section { padding: 60px 0; }
}