:root {
  --bg-dark: #0B0F17;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-color: rgba(255, 255, 255, 0.12);
  --primary-blue: #005AC1;
  --primary-blue-glow: rgba(0, 90, 193, 0.4);
  --emerald-green: #10B981;
  --emerald-glow: rgba(16, 185, 129, 0.35);
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

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

/* Background Gradients */
.radial-blur-1 {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(circle, var(--primary-blue-glow) 0%, rgba(16, 185, 129, 0.15) 50%, transparent 80%);
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(11, 15, 23, 0.8);
  border-bottom: 1.5px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-main);
  text-decoration: none;
}

.logo-badge {
  background: rgba(0, 90, 193, 0.2);
  color: #60A5FA;
  border: 1px solid rgba(96, 165, 250, 0.3);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--emerald-green), #059669);
  color: #FFFFFF;
  padding: 10px 22px;
  border-radius: 24px;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px var(--emerald-glow);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(16, 185, 129, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 22px;
  border-radius: 24px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Hero Section */
.hero {
  max-width: 1100px;
  margin: 70px auto 40px;
  padding: 0 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--emerald-green);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
  background: linear-gradient(180deg, #FFFFFF 30%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

/* Live Demo Widget */
.demo-section {
  max-width: 1000px;
  margin: 50px auto 80px;
  padding: 0 24px;
}

.demo-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 24px;
  backdrop-filter: blur(16px);
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.demo-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.demo-header > span {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-align: right;
}

.demo-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--emerald-green);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

@media (max-width: 768px) {
  .demo-grid {
    grid-template-columns: 1fr;
  }
}

.demo-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.demo-box label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.demo-textarea {
  width: 100%;
  height: 180px;
  background: rgba(11, 15, 23, 0.7);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 14px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  resize: none;
  outline: none;
}

.demo-textarea:focus {
  border-color: var(--emerald-green);
}

.demo-output {
  width: 100%;
  height: 180px;
  background: rgba(11, 15, 23, 0.9);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 14px;
  padding: 14px;
  color: var(--emerald-green);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  overflow-y: auto;
  white-space: pre-wrap;
}

.status-note,
.legal-note {
  color: var(--text-muted);
  font-size: 0.86rem;
  margin-top: 18px;
}

.contact-card {
  text-align: center;
}

.contact-card .btn-secondary {
  margin-top: 18px;
}

/* Features Grid */
.features-section {
  max-width: 1200px;
  margin: 80px auto;
  padding: 0 24px;
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 48px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(16, 185, 129, 0.4);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(16, 185, 129, 0.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emerald-green);
  font-size: 1.4rem;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.product-grid {
  max-width: 900px;
  margin: 0 auto;
}

.product-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 28px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 20px;
}

.product-card .feature-icon {
  margin-bottom: 0;
}

.product-copy h3 {
  margin: 4px 0 8px;
  font-size: 1.5rem;
}

.product-copy p {
  color: var(--text-muted);
}

.product-label {
  color: var(--emerald-green);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Pricing Grid */
.pricing-section {
  max-width: 1100px;
  margin: 80px auto;
  padding: 0 24px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.pricing-card.featured {
  border: 2px solid var(--emerald-green);
  background: rgba(16, 185, 129, 0.05);
  box-shadow: 0 10px 40px var(--emerald-glow);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  right: 24px;
  background: var(--emerald-green);
  color: #000;
  font-weight: 800;
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 12px;
}

.pricing-plan {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 16px;
}

.pricing-price span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  margin: 24px 0 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.pricing-features li::before {
  content: "✓";
  color: var(--emerald-green);
  font-weight: 900;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #111827;
  border: 1.5px solid var(--border-color);
  border-radius: 24px;
  width: 90%;
  max-width: 480px;
  padding: 32px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.input-field {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-main);
  font-size: 0.95rem;
  margin-top: 6px;
  margin-bottom: 18px;
}

.input-field:focus {
  border-color: var(--emerald-green);
  outline: none;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
}

footer p + p {
  margin-top: 8px;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 2.35rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .product-card {
    grid-template-columns: 1fr;
    align-items: flex-start;
  }
}