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

:root {
  --primary: #7C5CFC;
  --primary-600: #6D4AED;
  --primary-100: #EDE9FE;
  --primary-50: #F5F3FF;
  --neutral-50: #FAFAFA;
  --neutral-100: #F5F5F5;
  --neutral-200: #E5E5E5;
  --neutral-500: #737373;
  --neutral-600: #525252;
  --neutral-700: #404040;
  --neutral-800: #262626;
  --neutral-900: #171717;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--neutral-700);
  background: var(--neutral-50);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Nav ── */
nav {
  background: white;
  border-bottom: 1px solid var(--neutral-200);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--neutral-900);
}

.nav-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-brand span {
  font-weight: 800;
  font-size: 1.1rem;
}

/* ── Main Content ── */
main {
  flex: 1;
  padding: 60px 24px 80px;
}

.container {
  max-width: 720px;
  margin: 0 auto;
}

h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--neutral-900);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 8px;
}

.updated, .subtitle {
  font-size: 1rem;
  color: var(--neutral-500);
  margin-bottom: 48px;
}

section {
  margin-bottom: 40px;
}

h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 16px;
  padding-top: 8px;
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--neutral-800);
  margin-bottom: 8px;
  margin-top: 20px;
}

p {
  margin-bottom: 12px;
}

ul, ol {
  margin: 12px 0 16px 24px;
}

li {
  margin-bottom: 8px;
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: underline;
}

/* ── Warning Box ── */
.warning-box {
  background: var(--primary-50);
  border: 1.5px solid var(--primary-100);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 16px 0;
}

.warning-box strong {
  color: var(--primary-600);
  display: block;
  margin-bottom: 4px;
}

.warning-box p {
  margin-bottom: 0;
  color: var(--neutral-600);
  font-size: 0.925rem;
}

/* ── FAQ ── */
.faq-item {
  background: white;
  border: 1.5px solid var(--neutral-200);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 12px;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: var(--primary-100);
}

.faq-item h3 {
  margin: 0 0 8px;
  color: var(--neutral-900);
}

.faq-item p {
  margin: 0;
  color: var(--neutral-600);
  font-size: 0.925rem;
}

/* ── Contact ── */
.contact-section {
  text-align: center;
  margin-top: 64px;
}

.contact-cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 24px;
}

.contact-card {
  background: white;
  border: 1.5px solid var(--neutral-200);
  border-radius: 16px;
  padding: 32px;
  max-width: 320px;
  width: 100%;
}

.contact-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.contact-card h3 {
  margin: 0 0 4px;
  color: var(--neutral-900);
}

.contact-card p {
  font-size: 0.875rem;
  color: var(--neutral-500);
  margin-bottom: 16px;
}

.contact-link {
  display: inline-block;
  background: var(--primary-50);
  color: var(--primary) !important;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s ease;
}

.contact-link:hover {
  background: var(--primary-100);
  text-decoration: none !important;
}

/* ── Method ── */
.method {
  background: white;
  border: 1.5px solid var(--neutral-200);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.method h3 {
  margin: 0 0 12px;
}

.method ol {
  margin-bottom: 0;
}

/* ── Footer ── */
footer {
  background: var(--neutral-900);
  color: rgba(255,255,255,0.5);
  padding: 24px;
  text-align: center;
  font-size: 0.85rem;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  h1 { font-size: 1.8rem; }
  main { padding: 40px 20px 60px; }
}