/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1565C0;
  --primary-dark: #0D47A1;
  --primary-light: #1976D2;
  --accent: #FF6F00;
  --accent-light: #FFA000;
  --bg: #F8FAFF;
  --surface: #FFFFFF;
  --text: #1A1A2E;
  --text-muted: #5C6B8A;
  --border: #E0E8F5;
  --shadow: 0 4px 24px rgba(21,101,192,0.10);
  --shadow-lg: 0 12px 48px rgba(21,101,192,0.16);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 5%;
  height: 70px;
  display: flex; align-items: center; justify-content: space-between;
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow); }

.nav-brand { display: flex; align-items: center; gap: 12px; }
.nav-logo {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 18px; letter-spacing: -1px;
}
.nav-title { font-weight: 700; font-size: 18px; color: var(--primary-dark); }
.nav-subtitle { font-size: 11px; color: var(--text-muted); margin-top: -2px; }

.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  transition: all var(--transition);
}
.nav-links a:hover { color: var(--primary); background: rgba(21,101,192,0.06); }

.btn-outline {
  border: 1.5px solid var(--primary) !important;
  color: var(--primary) !important;
  padding: 8px 18px !important;
}
.btn-outline:hover { background: var(--primary) !important; color: #fff !important; }

.btn-primary-nav {
  background: var(--primary) !important;
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-sm) !important;
}
.btn-primary-nav:hover { background: var(--primary-dark) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0D47A1 0%, #1565C0 40%, #1976D2 70%, #1E88E5 100%);
  display: flex; align-items: center;
  padding: 100px 5% 60px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content { position: relative; z-index: 1; max-width: 600px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.25);
  color: #fff; padding: 6px 16px; border-radius: 50px;
  font-size: 13px; font-weight: 500; margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800; color: #fff; line-height: 1.15;
  margin-bottom: 20px;
}
.hero h1 span { color: #FFD54F; }
.hero p { font-size: 1.1rem; color: rgba(255,255,255,0.85); margin-bottom: 36px; max-width: 500px; }

.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-hero-primary {
  background: #fff; color: var(--primary);
  padding: 14px 32px; border-radius: var(--radius-sm);
  font-weight: 700; font-size: 15px;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.btn-hero-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.2); }
.btn-hero-outline {
  border: 2px solid rgba(255,255,255,0.6); color: #fff;
  padding: 14px 32px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 15px;
  transition: all var(--transition);
}
.btn-hero-outline:hover { background: rgba(255,255,255,0.15); border-color: #fff; }

.hero-visual {
  position: absolute; right: 5%; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 16px;
}
.hero-card {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(12px); border-radius: var(--radius);
  padding: 20px 24px; color: #fff; min-width: 220px;
  animation: float 3s ease-in-out infinite;
}
.hero-card:nth-child(2) { animation-delay: 1s; margin-left: 30px; }
.hero-card:nth-child(3) { animation-delay: 2s; }
.hero-card-icon { font-size: 28px; margin-bottom: 8px; }
.hero-card-title { font-weight: 700; font-size: 15px; }
.hero-card-desc { font-size: 12px; opacity: 0.8; margin-top: 4px; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ===== STATS ===== */
.stats-bar {
  background: var(--primary-dark);
  padding: 28px 5%;
  display: flex; justify-content: center; gap: 60px; flex-wrap: wrap;
}
.stat-item { text-align: center; color: #fff; }
.stat-number { font-size: 2rem; font-weight: 800; color: #FFD54F; }
.stat-label { font-size: 13px; opacity: 0.8; margin-top: 2px; }

/* ===== SECTIONS ===== */
section { padding: 80px 5%; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  background: rgba(21,101,192,0.08); color: var(--primary);
  padding: 6px 16px; border-radius: 50px;
  font-size: 13px; font-weight: 600; margin-bottom: 14px;
}
.section-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800; color: var(--text); margin-bottom: 14px;
}
.section-header p { color: var(--text-muted); max-width: 560px; margin: 0 auto; font-size: 1rem; }

/* ===== USER TYPES ===== */
.users-section { background: var(--surface); }
.users-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px; max-width: 1200px; margin: 0 auto;
}
.user-card {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.user-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--card-color, var(--primary));
}
.user-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.user-card-icon {
  width: 60px; height: 60px; border-radius: 14px;
  background: var(--card-color, var(--primary));
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.user-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.user-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; margin-bottom: 20px; }
.user-card-features { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.user-card-features li {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.875rem; color: var(--text-muted);
}
.user-card-features li::before {
  content: '✓';
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--card-color, var(--primary));
  color: #fff; font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* Video placeholder */
.video-placeholder {
  margin-top: 20px;
  background: rgba(0,0,0,0.06);
  border-radius: var(--radius-sm);
  height: 160px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; color: var(--text-muted); font-size: 13px;
  border: 2px dashed var(--border);
  cursor: pointer; transition: all var(--transition);
}
.video-placeholder:hover { border-color: var(--primary); color: var(--primary); }
.video-placeholder .play-icon { font-size: 36px; }

/* ===== FEATURES ===== */
.features-section { background: var(--bg); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px; max-width: 1100px; margin: 0 auto;
}
.feature-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.feature-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon { font-size: 40px; margin-bottom: 16px; }
.feature-item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.feature-item p { font-size: 0.875rem; color: var(--text-muted); }

/* ===== HOW IT WORKS ===== */
.how-section { background: var(--surface); }
.steps-container { max-width: 900px; margin: 0 auto; }
.step {
  display: flex; gap: 28px; align-items: flex-start;
  padding: 28px 0; border-bottom: 1px solid var(--border);
}
.step:last-child { border-bottom: none; }
.step-number {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--primary); color: #fff;
  font-size: 1.3rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step-content h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.step-content p { color: var(--text-muted); font-size: 0.9rem; }

/* ===== APP DOWNLOAD ===== */
.download-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  color: #fff; text-align: center;
}
.download-section h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 14px; }
.download-section p { opacity: 0.85; max-width: 500px; margin: 0 auto 36px; }
.download-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.store-btn {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.12); border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff; padding: 14px 28px; border-radius: var(--radius-sm);
  font-weight: 600; transition: all var(--transition);
  backdrop-filter: blur(8px);
}
.store-btn:hover { background: rgba(255,255,255,0.22); transform: translateY(-2px); }
.store-btn-icon { font-size: 28px; }
.store-btn-text { text-align: left; }
.store-btn-text small { display: block; font-size: 11px; opacity: 0.8; font-weight: 400; }
.store-btn-text strong { font-size: 16px; }

/* ===== CONTACT ===== */
.contact-section { background: var(--bg); }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; max-width: 1000px; margin: 0 auto;
  align-items: start;
}
.contact-info h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 20px; }
.contact-item {
  display: flex; align-items: flex-start; gap: 16px;
  margin-bottom: 24px;
}
.contact-item-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(21,101,192,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.contact-item-text strong { display: block; font-weight: 600; margin-bottom: 2px; }
.contact-item-text span { color: var(--text-muted); font-size: 0.9rem; }

.contact-form { background: var(--surface); border-radius: var(--radius); padding: 36px; border: 1px solid var(--border); }
.contact-form h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-muted); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 14px; font-family: inherit; color: var(--text);
  background: var(--bg); transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--primary);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-submit {
  width: 100%; padding: 14px;
  background: var(--primary); color: #fff;
  border: none; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 700; cursor: pointer;
  transition: all var(--transition);
}
.btn-submit:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* ===== FOOTER ===== */
footer {
  background: #0D1B3E; color: rgba(255,255,255,0.75);
  padding: 56px 5% 28px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 48px;
}
.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.875rem; line-height: 1.7; max-width: 280px; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 13px; transition: color var(--transition); }
.footer-col ul li a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 13px; }
.social-links { display: flex; gap: 12px; }
.social-link {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; transition: all var(--transition);
}
.social-link:hover { background: var(--primary); color: #fff; }

/* ===== SCROLL TO TOP ===== */
.scroll-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--primary); color: #fff;
  border: none; cursor: pointer; font-size: 20px;
  box-shadow: var(--shadow); transition: all var(--transition);
  opacity: 0; pointer-events: none; z-index: 999;
}
.scroll-top.visible { opacity: 1; pointer-events: all; }
.scroll-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: #fff; padding: 16px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .stats-bar { gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 100px 5% 60px; }
}

/* ===== ANIMATIONS ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }