/* ========================================
   CSS VARIABLES — LIGHT & DARK THEMES
   ======================================== */
:root {
  --bg-primary: #FAFAFA;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F3F4F6;
  --bg-accent: #F0EDFF;
  --bg-accent-2: #FFF4E6;
  --bg-hero-gradient: linear-gradient(135deg, #FAFAFA 0%, #F0EDFF 50%, #FFF4E6 100%);
  --bg-card: #FFFFFF;
  --bg-card-hover: #F9FAFB;
  --bg-footer: #0F0F12;

  --text-primary: #111118;
  --text-secondary: #4B5563;
  --text-tertiary: #9CA3AF;
  --text-accent: #6C47FF;
  --text-on-accent: #FFFFFF;
  --text-on-dark: #F1F1F1;

  --border-light: #E5E7EB;
  --border-card: #E5E7EB;

  --accent: #6C47FF;
  --accent-hover: #5835DB;
  --accent-soft: #F0EDFF;
  --accent-orange: #FF8C42;
  --accent-green: #10B981;
  --accent-red: #EF4444;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.05);

  --nav-bg: rgba(255,255,255,0.85);
  --nav-border: rgba(0,0,0,0.06);

  --tag-bg: #F0EDFF;
  --tag-text: #6C47FF;

  --stat-gradient: linear-gradient(135deg, #6C47FF, #FF8C42);

  --chat-bg: #0B141A;
  --chat-header: #1F2C34;
  --chat-user: #005C4B;
  --chat-bot: #1F2C34;
  --chat-text: #E9EDEF;
}

[data-theme="dark"] {
  --bg-primary: #0A0A0F;
  --bg-secondary: #111118;
  --bg-tertiary: #1A1A24;
  --bg-accent: #1A1530;
  --bg-accent-2: #1F1810;
  --bg-hero-gradient: linear-gradient(135deg, #0A0A0F 0%, #1A1530 50%, #1F1810 100%);
  --bg-card: #16161F;
  --bg-card-hover: #1C1C28;
  --bg-footer: #050508;

  --text-primary: #F1F1F5;
  --text-secondary: #9CA3AF;
  --text-tertiary: #6B7280;
  --text-accent: #A78BFA;
  --text-on-accent: #FFFFFF;

  --border-light: #2A2A36;
  --border-card: #2A2A36;

  --accent: #A78BFA;
  --accent-hover: #8B5CF6;
  --accent-soft: #1A1530;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.25);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.2);

  --nav-bg: rgba(10,10,15,0.88);
  --nav-border: rgba(255,255,255,0.06);

  --tag-bg: #1A1530;
  --tag-text: #A78BFA;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
  transition: background 0.3s;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-brand {
  font-size: 22px; font-weight: 800; color: var(--text-primary); white-space: nowrap;
}
.nav-links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-actions {
  display: flex; align-items: center; gap: 12px;
}
.btn-login {
  padding: 8px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--border-light);
  transition: all 0.2s;
}
.btn-login:hover { background: var(--bg-tertiary); }
.btn-cta {
  padding: 10px 24px; border-radius: 100px;
  font-size: 14px; font-weight: 600;
  color: var(--text-on-accent);
  background: var(--accent);
  transition: all 0.2s;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn-cta:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-cta-lg {
  padding: 14px 36px; font-size: 16px; font-weight: 700;
  border-radius: 100px;
  color: var(--text-on-accent); background: var(--accent);
  display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.2s;
}
.btn-cta-lg:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ========================================
   THEME TOGGLE
   ======================================== */
.theme-toggle {
  display: flex; align-items: center; gap: 4px;
  background: rgba(255,255,255,0.08);
  border-radius: 100px; padding: 3px;
  border: 1px solid rgba(255,255,255,0.1);
}
.theme-btn {
  padding: 5px 14px; border-radius: 100px;
  font-size: 12px; font-weight: 600;
  background: transparent; color: #9CA3AF;
  transition: all 0.2s;
}
.theme-btn.active {
  background: rgba(255,255,255,0.12);
  color: #E5E5E5;
}
.theme-btn:hover { color: #E5E5E5; }

/* ========================================
   MOBILE NAV
   ======================================== */
.nav-mobile-actions {
  display: none;
  align-items: center; gap: 10px;
}
.btn-cta-mobile {
  padding: 8px 18px; font-size: 13px;
}
.nav-hamburger {
  width: 36px; height: 36px;
  background: none; border: none;
  display: flex;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-hamburger span {
  display: block; width: 20px; height: 2px;
  background: var(--text-primary); border-radius: 2px;
  transition: all 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
  z-index: 999;
  background: var(--bg-primary);
  opacity: 0;
  transition: opacity 0.3s;
  overflow-y: auto;
}
.mobile-menu.open { opacity: 1; }
.mobile-menu-inner {
  padding: 24px;
  display: flex; flex-direction: column; gap: 32px;
}
.mobile-menu-links {
  list-style: none; display: flex; flex-direction: column; gap: 0;
}
.mobile-menu-links li {
  border-bottom: 1px solid var(--border-light);
}
.mobile-menu-links a {
  display: block; padding: 18px 0;
  font-size: 18px; font-weight: 600; color: var(--text-primary);
  transition: color 0.2s;
}
.mobile-menu-links a:hover { color: var(--accent); }
.mobile-menu-actions {
  display: flex; flex-direction: column; gap: 12px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--bg-footer);
  padding: 64px 0 32px;
  color: #9CA3AF;
}
.footer a { color: #9CA3AF; text-decoration: none; }
.footer a:hover { color: #E5E5E5; text-decoration: none; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.footer-brand {
  font-size: 22px; font-weight: 800; color: #F1F1F1;
  margin-bottom: 12px; white-space: nowrap;
}
.footer-desc { font-size: 14px; line-height: 1.6; max-width: 300px; }
.footer-col h4 {
  font-size: 13px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1.5px; color: #E5E5E5; margin-bottom: 16px;
}
.footer-col a {
  display: block; font-size: 14px; color: #9CA3AF;
  margin-bottom: 10px; transition: color 0.2s;
}
.footer-col a:hover { color: #E5E5E5; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px; font-size: 13px;
  display: flex; justify-content: space-between; align-items: center;
}

/* ========================================
   LEGAL PAGES
   ======================================== */
.legal-page { padding: 120px 0 80px; }
.legal-container { max-width: 800px; margin: 0 auto; padding: 0 24px; }
.legal-container h1 {
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  font-size: 42px; font-weight: 800; margin-bottom: 8px; color: var(--text-primary);
}
.legal-updated { font-size: 14px; color: var(--text-tertiary); margin-bottom: 40px; }
.legal-container h2 {
  font-size: 20px; font-weight: 700; color: var(--text-primary);
  margin-top: 40px; margin-bottom: 12px; padding-top: 24px;
  border-top: 1px solid var(--border-light);
}
.legal-container h2:first-of-type { border-top: none; padding-top: 0; }
.legal-container h3 { font-size: 16px; font-weight: 700; color: var(--text-primary); margin-top: 24px; margin-bottom: 8px; }
.legal-container p { font-size: 15px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 16px; }
.legal-container ul, .legal-container ol { margin-bottom: 16px; padding-left: 24px; }
.legal-container li { font-size: 15px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 6px; }
.legal-container strong { color: var(--text-primary); }
.legal-container a { color: var(--text-accent); }
.legal-container table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
.legal-container th, .legal-container td {
  padding: 12px 16px; text-align: left; font-size: 14px;
  border-bottom: 1px solid var(--border-light); color: var(--text-secondary);
}
.legal-container th { font-weight: 700; color: var(--text-primary); background: var(--bg-tertiary); }

/* ========================================
   CONTACT PAGE
   ======================================== */
.contact-page { padding: 120px 0 80px; }
.contact-container { max-width: 960px; margin: 0 auto; padding: 0 24px; }
.contact-container h1 {
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  font-size: 42px; font-weight: 800; margin-bottom: 8px; color: var(--text-primary);
  text-align: center;
}
.contact-subtitle {
  font-size: 17px; color: var(--text-secondary); text-align: center;
  margin-bottom: 40px; line-height: 1.6;
}
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.contact-card {
  background: var(--bg-secondary); border: 1px solid var(--border-light);
  border-radius: 20px; padding: 32px; box-shadow: var(--shadow-md);
}
.contact-card h2 {
  font-size: 18px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 8px;
}
.contact-card p {
  font-size: 15px; color: var(--text-secondary); line-height: 1.6;
  margin-bottom: 20px;
}
.contact-email-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 100px; font-size: 15px; font-weight: 700;
  color: var(--text-on-accent); background: var(--accent);
  transition: all 0.2s; text-decoration: none;
}
.contact-email-btn:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); text-decoration: none; }
.contact-note {
  font-size: 13px; color: var(--text-tertiary); margin-top: 12px;
}
.contact-topics h3 {
  font-size: 14px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 12px;
}
.contact-topics ul {
  list-style: none; display: flex; flex-direction: column; gap: 6px;
}
.contact-topics li {
  font-size: 14px; color: var(--text-secondary); line-height: 1.5;
  padding-left: 16px; position: relative;
}
.contact-topics li::before {
  content: '\2022'; position: absolute; left: 0; color: var(--accent);
  font-weight: 700;
}
.contact-faq-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--text-accent);
  margin-top: 16px;
}
.contact-faq-link:hover { text-decoration: underline; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .nav-mobile-actions { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 640px) {
  .legal-container h1 { font-size: 30px; }
  .contact-container h1 { font-size: 30px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

.brand-dot-com { display: inline; color: var(--text-tertiary); font-weight: 400; }