:root {
  --bg-primary: #05070b;
  --bg-secondary: #0a0e17;
  --bg-glass: rgba(15, 23, 42, 0.65);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  
  --accent: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.35);
  --accent-cyan: #38bdf8;
  
  --shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  --radius: 12px;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-glass: rgba(0, 0, 0, 0.08);
  --text-main: #0f172a;
  --text-muted: #475569;
  --accent: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.15);
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Plus Jakarta Sans', sans-serif;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 6rem 0;
}

.bg-alt {
  background-color: var(--bg-secondary);
}

.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.header {
  position: sticky;
  top: 0;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
}

.logo-accent {
  color: var(--accent-cyan);
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--text-main);
}

.actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-icon {
  background: none;
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  color: var(--text-main);
  cursor: pointer;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #1d4ed8);
  color: white;
}

.btn-glow {
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-glow:hover {
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border-glass);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: var(--border-glass);
}

.btn-block {
  width: 100%;
}

.hero {
  position: relative;
  padding: 7rem 0 5rem 0;
}

.hero-bg-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 8px #10b981;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 1.2rem;
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.hero-preview-card {
  padding: 2rem;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.preview-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.preview-status {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.preview-body h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.preview-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.preview-tags {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.preview-tags span {
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border-glass);
}

.metrics-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  padding: 2.5rem;
  border-radius: var(--radius);
  text-align: center;
}

.metric-item h3 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
}

.metric-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.section-title {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3.5rem auto;
}

.section-badge {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title h2 {
  font-size: 2.4rem;
  letter-spacing: -0.5px;
  margin-top: 0.5rem;
}

.filter-buttons {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  padding: 0.5rem 1.2rem;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.85rem;
}

.filter-btn.active, .filter-btn:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card-item {
  padding: 2.5rem;
}

.card-item:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.card-icon {
  font-size: 2.2rem;
  margin-bottom: 1.2rem;
}

.card-item h3 {
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
}

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

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  padding: 0 1.5rem;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  color: var(--text-muted);
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding-bottom: 1.5rem;
}

.contact-box {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem;
}

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

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-glass);
  border-radius: 6px;
  color: var(--text-main);
  outline: none;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--accent);
}

.form-status {
  margin-top: 1rem;
  text-align: center;
  font-size: 0.9rem;
}

.footer {
  border-top: 1px solid var(--border-glass);
  padding: 2.5rem 0;
  font-size: 0.85rem;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}

.social-links a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 1.5rem;
}

.social-links a:hover {
  color: var(--text-main);
}

.hamburger { display: none; }

@media (max-width: 900px) {
  .hero-container { grid-template-columns: 1fr; }
  .metrics-bar { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
}