/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: #111827;
  background: #fff;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button, input, select, textarea { font: inherit; }

/* === VARIABLES === */
:root {
  --primary: #1E40AF;
  --primary-dark: #1e3a8a;
  --primary-light: #3B82F6;
  --secondary: #059669;
  --accent: #F59E0B;
  --accent-dark: #d97706;
  --text: #111827;
  --text-light: #4B5563;
  --text-muted: #6B7280;
  --bg: #FFFFFF;
  --bg-alt: #F9FAFB;
  --border: #E5E7EB;
  --warning-bg: #FFFBEB;
  --warning-border: #FDE68A;
  --warning-text: #92400E;
  --info-bg: #EFF6FF;
  --info-border: #BFDBFE;
  --info-text: #1E40AF;
  --success-bg: #F0FDF4;
  --success-border: #BBF7D0;
  --success-text: #166534;
  --max-w: 1200px;
  --max-w-sm: 800px;
}

/* === LAYOUT === */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 16px; }
.container-sm { max-width: var(--max-w-sm); margin: 0 auto; padding: 0 16px; }
.flex-1 { flex: 1; }
.text-center { text-align: center; }

/* === DISCLAIMER BANNER === */
.disclaimer-banner {
  background: var(--warning-bg);
  border-bottom: 1px solid var(--warning-border);
  color: var(--warning-text);
  font-size: 13px;
  text-align: center;
  padding: 8px 16px;
}

/* === HEADER === */
.header {
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}
.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}
.nav { display: flex; align-items: center; gap: 24px; }
.nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  transition: color 0.2s;
}
.nav a:hover { color: var(--primary); }
.menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--text-light);
}
.mobile-nav {
  display: none;
  border-top: 1px solid var(--border);
  background: #fff;
}
.mobile-nav.active { display: block; }
.mobile-nav a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  border-bottom: 1px solid #f3f4f6;
}
.mobile-nav a:hover { background: #f9fafb; color: var(--primary); }

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

/* === HERO === */
.hero {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 64px 16px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  max-width: 700px;
}
.hero p {
  font-size: clamp(16px, 2.5vw, 20px);
  color: #bfdbfe;
  margin-bottom: 32px;
  max-width: 600px;
  line-height: 1.6;
}
.hero-btns { display: flex; flex-wrap: wrap; gap: 16px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 16px;
  transition: background 0.2s, transform 0.1s;
  border: none;
  cursor: pointer;
}
.btn:active { transform: scale(0.98); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-outline { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid rgba(255,255,255,0.3); }
.btn-outline:hover { background: rgba(255,255,255,0.2); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-full { width: 100%; }

/* === SECTIONS === */
.section { padding: 64px 16px; }
.section-alt { background: var(--bg-alt); }
.section-title {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.section-desc {
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 48px;
}

/* === CARDS === */
.cards { display: grid; gap: 24px; }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1024px) { .cards-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cards-4, .cards-2 { grid-template-columns: 1fr; } }

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); border-color: var(--primary-light); }
.card-icon { font-size: 28px; margin-bottom: 12px; }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.card:hover h3 { color: var(--primary); }
.card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }
.card-green:hover { border-color: #34d399; }
.card-green:hover h3 { color: var(--secondary); }

/* === STATS === */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; text-align: center; }
@media (max-width: 640px) { .stats { grid-template-columns: 1fr; } }
.stat-number { font-size: clamp(32px, 5vw, 40px); font-weight: 800; margin-bottom: 4px; }
.stat-label { color: var(--text-light); font-size: 14px; }

/* === FORM === */
.form-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
@media (min-width: 640px) { .form-box { padding: 32px; } }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 14px; font-weight: 500; color: #374151; margin-bottom: 4px; }
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 16px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: #fff;
}
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(30,64,175,0.1); }
.form-check { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 16px; }
.form-check input { margin-top: 4px; width: 16px; height: 16px; }
.form-check label { font-size: 14px; color: var(--text-light); }
.form-check a { color: var(--primary); text-decoration: underline; }
.form-hint { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 12px; }

/* === SUCCESS BOX === */
.success-box {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}
.success-box .icon { font-size: 40px; margin-bottom: 12px; }
.success-box h3 { font-size: 20px; font-weight: 700; color: var(--success-text); margin-bottom: 8px; }
.success-box p { color: #15803d; }
.hidden { display: none !important; }

/* === INFO BOX / DISCLAIMER === */
.info-box {
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 24px;
}
.info-box p { font-size: 14px; color: var(--info-text); }
.warning-box {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: 8px;
  padding: 16px;
}
.warning-box p { font-size: 14px; color: var(--warning-text); }

/* === FOOTER === */
.footer { background: #111827; color: #9ca3af; }
.footer-disclaimer {
  background: #1f2937;
  border-bottom: 1px solid #374151;
  padding: 16px;
}
.footer-disclaimer p { font-size: 13px; color: #9ca3af; text-align: center; line-height: 1.6; max-width: var(--max-w); margin: 0 auto; }
.footer-inner { max-width: var(--max-w); margin: 0 auto; padding: 40px 16px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer h3 { color: #fff; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer li a { font-size: 14px; color: #9ca3af; transition: color 0.2s; }
.footer li a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #1f2937;
  margin-top: 32px;
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
  color: #6b7280;
}

/* === ARTICLE === */
.article { max-width: var(--max-w-sm); margin: 0 auto; padding: 48px 16px; }
.breadcrumbs { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-muted); margin-bottom: 24px; flex-wrap: wrap; }
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--primary); }
.article h1 { font-size: clamp(24px, 4vw, 36px); font-weight: 700; line-height: 1.2; margin-bottom: 24px; }
.article h2 { font-size: 22px; font-weight: 700; margin-top: 32px; margin-bottom: 16px; }
.article p { color: var(--text-light); line-height: 1.8; margin-bottom: 16px; }
.article ul { margin-bottom: 16px; padding-left: 24px; }
.article li { list-style: disc; color: var(--text-light); line-height: 1.8; margin-bottom: 8px; }
.article a { color: var(--primary); text-decoration: underline; }

/* === DATA BOX === */
.data-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}
.data-row { display: flex; flex-direction: column; margin-bottom: 12px; }
@media (min-width: 640px) { .data-row { flex-direction: row; gap: 16px; } }
.data-label { font-weight: 600; color: #374151; min-width: 180px; }
.data-value { color: var(--text-light); }

/* === FAQ === */
.faq-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
}
.faq-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.faq-item p { font-size: 14px; color: var(--text-light); }

/* === CTA BOX === */
.cta-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  margin-top: 40px;
}
.cta-box h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.cta-box p { color: var(--text-light); margin-bottom: 16px; }

/* === CONTACT === */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(30,64,175,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}
.contact-item strong { display: block; color: #374151; margin-bottom: 2px; }
.contact-item span { color: var(--text-light); font-size: 14px; }

/* === TAG === */
.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  background: var(--primary);
  color: #fff;
  padding: 2px 8px;
  border-radius: 999px;
}
.link-arrow { color: var(--primary); font-weight: 600; font-size: 14px; margin-top: 16px; display: inline-block; }
.link-arrow:hover { text-decoration: underline; }