/* ===== CSS Variables ===== */
:root {
  /* Colors */
  --color-primary: #6366F1;
  --color-primary-dark: #4F46E5;
  --color-secondary: #818CF8;
  --color-accent: #10B981;
  --color-accent-dark: #059669;
  --color-background: #FAFBFF;
  --color-foreground: #1E1B4B;
  --color-muted: #F1F5F9;
  --color-border: #E2E8F0;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-25: 100px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 14px rgba(99, 102, 241, 0.12);
  --shadow-lg: 0 12px 40px rgba(99, 102, 241, 0.15);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-foreground);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* ===== Layout ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-lg {
  padding: var(--space-5) var(--space-12);
  font-size: 18px;
  border-radius: var(--radius-lg);
  min-height: 56px;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-outline {
  background: transparent;
  border: 2px solid #C7D2FE;
  color: var(--color-primary);
}

.btn-outline:hover {
  background: #EEF2FF;
}

.btn-green {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-green:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 24px;
  height: 24px;
  stroke: white;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-foreground);
}

.nav-links {
  display: flex;
  gap: var(--space-9);
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: #4F46E5;
  transition: color var(--transition-fast);
}

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

.nav-cta {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-foreground);
}

/* ===== Hero Section ===== */
.hero {
  padding: 160px var(--space-8) var(--space-25);
  text-align: center;
  background: linear-gradient(180deg, #EEF2FF 0%, var(--color-background) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: #E0E7FF;
  color: #4F46E5;
  font-size: 14px;
  font-weight: 600;
  padding: var(--space-2) var(--space-5);
  border-radius: 24px;
  margin-bottom: var(--space-7);
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero h1 {
  font-size: 64px;
  font-weight: 800;
  line-height: 1.1;
  max-width: 800px;
  margin: 0 auto var(--space-6);
  color: var(--color-foreground);
}

.hero h1 span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-16);
}

.hero-stats {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
}

.hero-stat {
  text-align: center;
}

.hero-stat-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-primary);
}

.hero-stat-label {
  font-size: 14px;
  color: var(--color-text-light);
  margin-top: var(--space-1);
}

/* ===== Features Section ===== */
.features {
  padding: var(--space-25) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-foreground);
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #C7D2FE;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-foreground);
  margin-bottom: var(--space-3);
}

.feature-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Showcase Section ===== */
.showcase {
  padding: var(--space-25) 0;
  background: linear-gradient(180deg, var(--color-background) 0%, #EEF2FF 100%);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.showcase-content h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-foreground);
  margin-bottom: var(--space-5);
  line-height: 1.2;
}

.showcase-content p {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-8);
}

.showcase-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.showcase-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.showcase-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.showcase-item span {
  font-size: 15px;
  color: #475569;
}

.showcase-mockup {
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.mockup-header {
  background: var(--color-foreground);
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mockup-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.mockup-dot.red { background: #EF4444; }
.mockup-dot.yellow { background: #F59E0B; }
.mockup-dot.green { background: #10B981; }

.mockup-body {
  padding: var(--space-6);
  background: #F8FAFC;
  min-height: 300px;
}

.mock-sidebar {
  width: 180px;
  background: #fff;
  border-right: 1px solid var(--color-border);
  padding: var(--space-4);
  float: left;
}

.mock-sidebar-item {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-1);
  font-size: 13px;
  color: var(--color-text-muted);
  cursor: pointer;
}

.mock-sidebar-item.active {
  background: #EEF2FF;
  color: var(--color-primary);
  font-weight: 600;
}

.mock-main {
  margin-left: 180px;
  padding: var(--space-5);
}

.mock-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
}

.mock-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.mock-table th {
  text-align: left;
  padding: var(--space-3);
  background: #F8FAFC;
  color: var(--color-text-muted);
  font-weight: 600;
}

.mock-table td {
  padding: var(--space-3);
  border-bottom: 1px solid #F1F5F9;
}

.status-badge {
  padding: var(--space-1) var(--space-3);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
}

.status-badge.active {
  background: #D1FAE5;
  color: #059669;
}

.status-badge.pending {
  background: #FEF3C7;
  color: #D97706;
}

/* ===== Stats Section ===== */
.stats {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, var(--color-foreground) 0%, #312E81 100%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

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

.stat-number {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
}

.stat-label {
  font-size: 16px;
  color: #A5B4FC;
  margin-top: var(--space-2);
}

/* ===== CTA Section ===== */
.cta {
  padding: var(--space-25) 0;
  text-align: center;
}

.cta-content h2 {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-foreground);
  margin-bottom: var(--space-5);
}

.cta-content p {
  font-size: 18px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-foreground);
  color: #A5B4FC;
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: var(--space-4);
  color: #818CF8;
}

.footer-brand .logo-text {
  color: #fff;
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--space-5);
}

.footer-links a {
  display: block;
  font-size: 14px;
  color: #A5B4FC;
  margin-bottom: var(--space-3);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid #312E81;
  padding-top: var(--space-6);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-primary);
}

/* ===== Responsive Design ===== */

/* Tablet */
@media (max-width: 1023px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .hero h1 {
    font-size: 48px;
  }

  .hero-stats {
    gap: var(--space-10);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile */
@media (max-width: 767px) {
  .container {
    padding: 0 var(--space-4);
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding: 120px var(--space-4) var(--space-16);
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: var(--space-3);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-6);
  }

  .hero-stat {
    flex: 1 1 40%;
  }

  .section-title {
    font-size: 28px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .stat-number {
    font-size: 36px;
  }

  .cta-content h2 {
    font-size: 28px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .mock-sidebar {
    display: none;
  }

  .mock-main {
    margin-left: 0;
  }
}