/* ═══════════════════ VARIABLES ═══════════════════ */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: rgba(37, 99, 235, 0.08);
  --bg: #f8fafc;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --accent: #8b5cf6;
  --success: #10b981;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
}

/* ═══════════════════ RESET ═══════════════════ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ═══════════════════ UTILITIES ═══════════════════ */

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 3rem;
}

/* ═══════════════════ BUTTONS ═══════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.95rem;
  white-space: nowrap;
}

.btn-sm {
  padding: 6px 16px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
  padding: 12px 24px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: var(--card);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ═══════════════════ HEADER ═══════════════════ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo img {
  height: 32px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.nav-account {
  font-size: 0.875rem;
  color: var(--text-muted);
  opacity: 0.7;
  transition: opacity 0.2s, color 0.2s;
}

.nav-account:hover {
  opacity: 1;
  color: var(--primary);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ═══════════════════ HERO ═══════════════════ */

.hero {
  padding: 140px 0 0;
  background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}

.hero-centered {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding-bottom: 48px;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-screenshot-wrapper {
  padding-bottom: 64px;
}

.hero-visual {
  position: relative;
}

.hero-screenshot {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.hero-float {
  position: absolute;
  bottom: -32px;
  right: -24px;
  width: 28%;
  border-radius: var(--radius-md);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
  border: 2px solid #fff;
}

/* ═══════════════════ SOCIAL PROOF ═══════════════════ */

.proof {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.proof-inner {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.proof-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* ═══════════════════ FEATURES ═══════════════════ */

.features {
  padding: 96px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.features-secondary {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.secondary-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.check {
  color: var(--success);
  font-weight: 700;
}

/* ═══════════════════ PRICING ═══════════════════ */

.pricing {
  padding: 96px 0;
  background: var(--card);
}

.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.toggle-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s;
}

.toggle-label.active {
  color: var(--text);
  font-weight: 600;
}

.toggle-badge {
  display: inline-block;
  background: var(--success);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
  vertical-align: middle;
}

.toggle-switch {
  width: 48px;
  height: 28px;
  background: var(--border);
  border: none;
  border-radius: 99px;
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
}

.toggle-switch.active {
  background: var(--primary);
}

.toggle-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.toggle-switch.active .toggle-knob {
  transform: translateX(20px);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow-lg);
  transform: scale(1.03);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 99px;
  white-space: nowrap;
}

.business-badge {
  background: var(--accent);
}

.pricing-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.pricing-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 4px;
  margin-bottom: 16px;
}

.pricing-price {
  margin-bottom: 8px;
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.price-period {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.price-billed-yearly {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 8px;
}

.pricing-features {
  flex: 1;
  margin: 24px 0;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-features li::before {
  content: "\2713";
  color: var(--success);
  font-weight: 700;
  font-size: 0.85rem;
}

.pricing-footer {
  margin-top: auto;
}

.trial-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  margin-bottom: 12px;
}

.closing-line {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  margin-bottom: 12px;
}

/* ═══════════════════ CTA FINAL ═══════════════════ */

.cta-final {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
}

.cta-final-inner {
  text-align: center;
}

.cta-final h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.cta-final p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 2rem;
}

.cta-final .btn-primary {
  background: #fff;
  color: var(--primary);
  font-size: 1.1rem;
}

.cta-final .btn-primary:hover {
  background: #f0f4ff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* ═══════════════════ FOOTER ═══════════════════ */

.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

/* ═══════════════════ ANIMATIONS ═══════════════════ */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════ RESPONSIVE ═══════════════════ */

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow-md);
  }

  .nav.open {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .menu-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding: 100px 0 0;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-screenshot-wrapper {
    padding-bottom: 32px;
  }

  .hero-float {
    width: 35%;
    bottom: -16px;
    right: -8px;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .proof-inner {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .pricing-card.featured {
    transform: none;
  }

  .cta-final h2 {
    font-size: 1.75rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand {
    flex-direction: column;
  }
}