/* ============================================================
   AIWEN - Design System
   Premium dark glassmorphism theme
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@600;700;800&display=swap');

:root {
  /* Base palette */
  --bg-base: #0a0a0f;
  --bg-card: #121218;
  --bg-glass: rgba(255,255,255,0.03);
  --bg-glass-hover: rgba(255,255,255,0.06);
  --text-primary: #f0f0f5;
  --text-secondary: #8b8b9e;
  --text-muted: #56566a;
  --border: #1e1e2e;
  --border-light: rgba(255,255,255,0.06);

  /* Product accents */
  --accent-climat: #0EA5E9;
  --accent-clauseguard: #8B5CF6;
  --accent-solvens: #F59E0B;
  --accent-tenderpilot: #10B981;
  --accent-privacy: #EC4899;

  /* Shared accents */
  --accent-primary: #6366f1;
  --accent-primary-light: #818cf8;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(99,102,241,0.15);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---- Layout ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-lg); }
.section { padding: 80px 0; }
.section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-md);
}
.section-subtitle {
  color: var(--text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  font-size: 1.1rem;
}

/* ---- Navigation ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(10,10,15,0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  padding: 0 var(--space-lg);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #818cf8, #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
.nav-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  cursor: pointer;
  background: none; border: none;
}
.nav-link:hover { color: var(--text-primary); }
.nav-actions { display: flex; align-items: center; gap: var(--space-md); }
.mobile-menu-btn {
  display: none;
  background: none; border: none; color: var(--text-primary);
  font-size: 1.5rem; cursor: pointer;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-md);
  font-weight: 600; font-size: 0.95rem;
  font-family: inherit;
  border: none; cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  box-shadow: 0 4px 15px rgba(99,102,241,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(99,102,241,0.45);
}
.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}
.btn-secondary:hover { background: var(--bg-glass-hover); }
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent-primary); color: var(--accent-primary-light); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

/* ---- Hero ---- */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, #f0f0f5 0%, #818cf8 50%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto var(--space-xl);
  font-size: 1.25rem;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }
.hero-gradient {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.12;
  animation: float 8s ease-in-out infinite;
  pointer-events: none;
}
.hero-gradient-1 { background: #6366f1; top: -200px; left: -100px; }
.hero-gradient-2 { background: #0EA5E9; bottom: -200px; right: -100px; animation-delay: 4s; }

/* Product-specific hero */
.hero-product { padding: 140px 0 60px; }
.hero-product .hero-icon { font-size: 4rem; margin-bottom: var(--space-lg); }
.hero-product h1 { font-size: 3.2rem; }

/* ---- Product Cards ---- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent, var(--accent-primary));
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at top left, var(--accent, var(--accent-primary)), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-card:hover::before { opacity: 0.04; }
.product-card h3 { display: flex; align-items: center; gap: var(--space-sm); font-size: 1.2rem; margin-bottom: var(--space-sm); }
.product-icon { font-size: 1.8rem; }
.product-tagline { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: var(--space-md); }
.product-features { list-style: none; margin-bottom: var(--space-lg); }
.product-features li {
  color: var(--text-secondary);
  font-size: 0.88rem;
  padding: 4px 0;
  display: flex; align-items: center; gap: 8px;
}
.product-features li::before { content: '✓'; color: var(--accent, var(--accent-primary)); font-weight: 700; font-size: 0.8rem; }
.product-link { color: var(--accent, var(--accent-primary)); font-weight: 600; font-size: 0.9rem; transition: gap 0.2s; display: inline-flex; align-items: center; gap: 4px; }
.product-link:hover { gap: 8px; }

/* ---- Stats ---- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
.stat-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
}
.stat-value {
  font-family: 'Outfit', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, #f0f0f5, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.stat-label { color: var(--text-secondary); font-size: 0.9rem; margin-top: var(--space-xs); }

/* ---- Steps ---- */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.step-number {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.2rem;
  margin-bottom: var(--space-md);
  color: #fff;
}
.step-card h3 { font-size: 1.1rem; margin-bottom: var(--space-sm); }
.step-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* ---- Pricing ---- */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-lg); align-items: start; }
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}
.pricing-card.featured {
  border-color: var(--accent, var(--accent-primary));
}
.pricing-name { font-weight: 700; font-size: 1.1rem; margin-bottom: var(--space-sm); }
.pricing-price {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}
.pricing-period { color: var(--text-muted); font-size: 0.9rem; margin-bottom: var(--space-lg); }
.pricing-features { list-style: none; text-align: left; margin-bottom: var(--space-lg); }
.pricing-features li {
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.pricing-features li::before { content: '✓'; color: var(--accent-primary); font-weight: 700; }

/* ---- Feature Grid ---- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.feature-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.3s ease;
}
.feature-card:hover { transform: translateY(-2px); border-color: var(--accent, var(--accent-primary)); }
.feature-icon { font-size: 2rem; margin-bottom: var(--space-md); }
.feature-card h3 { font-size: 1.05rem; margin-bottom: var(--space-sm); }
.feature-card p { color: var(--text-secondary); font-size: 0.88rem; }

/* ---- CTA Section ---- */
.cta-section {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}
.cta-section p { color: var(--text-secondary); margin-bottom: var(--space-xl); max-width: 500px; margin-left: auto; margin-right: auto; }

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
  background: var(--bg-card);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-xl); }
.footer-brand { font-family: 'Outfit', sans-serif; font-size: 1.3rem; font-weight: 800; margin-bottom: var(--space-md); }
.footer-desc { color: var(--text-secondary); font-size: 0.88rem; max-width: 280px; }
.footer-col h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--space-md); color: var(--text-primary); }
.footer-col a { display: block; color: var(--text-secondary); font-size: 0.88rem; margin-bottom: var(--space-sm); transition: color 0.2s; }
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
  padding-top: var(--space-lg);
  margin-top: 40px;
}

/* ---- Badge ---- */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.4;
}
.badge-accent { background: rgba(99,102,241,0.15); color: var(--accent-primary-light); }

/* ---- Auth Pages ---- */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-brand {
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  padding: var(--space-3xl);
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 50%, #0a0a1a 100%);
  position: relative; overflow: hidden;
  text-align: center;
}
.auth-brand-logo { font-family: 'Outfit', sans-serif; font-size: 2.5rem; font-weight: 800; margin-bottom: var(--space-lg); }
.auth-brand-tagline { color: var(--text-secondary); font-size: 1.1rem; max-width: 360px; }
.auth-icons {
  display: flex; gap: var(--space-xl); margin-top: var(--space-2xl);
  font-size: 2.5rem;
}
.auth-icons span { animation: float 6s ease-in-out infinite; opacity: 0.5; }
.auth-icons span:nth-child(2) { animation-delay: 1.5s; }
.auth-icons span:nth-child(3) { animation-delay: 3s; }
.auth-icons span:nth-child(4) { animation-delay: 4.5s; }
.auth-form-side {
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-3xl);
  background: var(--bg-base);
}
.auth-form { width: 100%; max-width: 400px; }
.auth-form h2 { font-family: 'Outfit', sans-serif; font-size: 1.8rem; font-weight: 700; margin-bottom: var(--space-xs); }
.auth-form .subtitle { color: var(--text-secondary); margin-bottom: var(--space-xl); }

/* ---- Forms ---- */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.form-input {
  width: 100%; padding: 12px 16px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary); font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.15); }
.form-hint { color: var(--text-muted); font-size: 0.8rem; margin-top: var(--space-sm); }
.form-link { color: var(--accent-primary-light); font-weight: 500; }
.form-link:hover { text-decoration: underline; }
.form-divider { display: flex; align-items: center; gap: var(--space-md); margin: var(--space-lg) 0; color: var(--text-muted); font-size: 0.8rem; }
.form-divider::before, .form-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* Checkboxes */
.checkbox-group { display: flex; flex-direction: column; gap: var(--space-sm); }
.checkbox-label {
  display: flex; align-items: center; gap: var(--space-sm);
  padding: 12px 16px; border-radius: var(--radius-md);
  border: 1px solid var(--border); cursor: pointer;
  transition: all 0.2s;
  font-size: 0.9rem;
}
.checkbox-label:hover { background: var(--bg-glass); border-color: var(--border-light); }
.checkbox-label input[type="checkbox"] { accent-color: var(--accent-primary); width: 18px; height: 18px; }
.checkbox-icon { font-size: 1.3rem; }

/* ---- Dashboard ---- */
.dashboard-welcome { margin-bottom: var(--space-xl); }
.dashboard-welcome h1 { font-family: 'Outfit', sans-serif; font-size: 1.8rem; font-weight: 700; }
.dashboard-welcome p { color: var(--text-secondary); }
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); margin-bottom: var(--space-xl); }
.kpi-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex; align-items: center; gap: var(--space-md);
}
.kpi-icon { font-size: 2rem; }
.kpi-value { font-family: 'Outfit', sans-serif; font-size: 1.8rem; font-weight: 700; }
.kpi-label { color: var(--text-secondary); font-size: 0.82rem; }
.app-launcher { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); margin-bottom: var(--space-xl); }
.launcher-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  display: block;
}
.launcher-card:hover { transform: scale(1.02); border-color: var(--accent, var(--border-light)); box-shadow: var(--shadow-md); }
.launcher-icon { font-size: 3rem; margin-bottom: var(--space-md); }
.launcher-card h3 { font-size: 1.1rem; margin-bottom: var(--space-xs); }
.launcher-card p { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: var(--space-md); }
.activity-feed { margin-bottom: var(--space-xl); }
.activity-item {
  display: flex; align-items: center; gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
}
.activity-icon { font-size: 1.3rem; }
.activity-text { flex: 1; font-size: 0.9rem; }
.activity-time { color: var(--text-muted); font-size: 0.8rem; white-space: nowrap; }

/* ---- Bundle Calculator ---- */
.bundle-calculator {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 40px;
}
.bundle-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); margin-bottom: var(--space-xl); }
.bundle-option {
  display: flex; align-items: center; gap: var(--space-md);
  padding: var(--space-md); border-radius: var(--radius-md);
  border: 1px solid var(--border); cursor: pointer;
  transition: all 0.2s;
}
.bundle-option:hover { background: var(--bg-glass-hover); }
.bundle-option.selected { border-color: var(--accent-primary); background: rgba(99,102,241,0.06); }
.bundle-option input[type="checkbox"] { accent-color: var(--accent-primary); width: 20px; height: 20px; }
.bundle-summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-xl); background: var(--bg-card);
  border-radius: var(--radius-lg); border: 1px solid var(--border);
}
.bundle-total {
  font-family: 'Outfit', sans-serif;
  font-size: 2rem; font-weight: 700;
}
.bundle-savings { color: var(--accent-tenderpilot); font-weight: 600; }
.bundle-original { color: var(--text-muted); text-decoration: line-through; margin-right: var(--space-sm); }
.bundle-badge {
  display: inline-block; padding: 4px 12px;
  background: linear-gradient(135deg, var(--accent-tenderpilot), #059669);
  color: #fff; border-radius: var(--radius-full);
  font-size: 0.78rem; font-weight: 700;
}

/* ---- Tabs ---- */
.tabs { display: flex; gap: 4px; margin-bottom: var(--space-xl); background: var(--bg-card); border-radius: var(--radius-md); padding: 4px; border: 1px solid var(--border); }
.tab-btn {
  flex: 1; padding: 10px 16px; border: none; background: transparent;
  color: var(--text-secondary); font-size: 0.9rem; font-weight: 600;
  border-radius: var(--radius-sm); cursor: pointer; transition: all 0.2s;
  font-family: inherit;
}
.tab-btn.active { background: var(--accent-primary); color: #fff; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ---- Animations ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(99,102,241,0.1); }
  50% { box-shadow: 0 0 40px rgba(99,102,241,0.25); }
}
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }
.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .product-grid, .app-launcher, .bundle-options { grid-template-columns: 1fr; }
  .stats-grid, .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid, .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .hero p { font-size: 1.05rem; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.8rem; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg-base); border-bottom: 1px solid var(--border); flex-direction: column; padding: var(--space-lg); gap: var(--space-md); }
  .nav-links.open { display: flex; }
  .mobile-menu-btn { display: block; }
  .auth-page { grid-template-columns: 1fr; }
  .auth-brand { display: none; }
  .pricing-card.featured { transform: none; }
  .stats-grid, .kpi-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .bundle-summary { flex-direction: column; text-align: center; gap: var(--space-md); }
}