:root {
  --primary: #059669;
  --primary-dark: #047857;
  --primary-light: #ecfdf5;
  --primary-border: #a7f3d0;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;
  --amber-50: #fffbeb;
  --amber-700: #b45309;
  --amber-200: #fde68a;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  background-color: var(--slate-50);
  color: var(--slate-800);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* Header & Nav */
.header {
  background-color: var(--slate-900);
  color: var(--white);
  padding: 1.25rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.header-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--white);
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--white);
  box-shadow: 0 2px 4px rgba(5, 150, 105, 0.3);
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-badge {
  background-color: rgba(16, 185, 129, 0.2);
  color: #34d399;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  border: 1px solid rgba(52, 211, 153, 0.3);
  margin-left: 0.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--slate-300);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

.nav-links .nav-btn {
  background-color: var(--primary);
  color: var(--white);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  transition: background-color 0.15s ease;
}

.nav-links .nav-btn:hover {
  background-color: var(--primary-dark);
}

/* Hero Section */
.hero {
  background: linear-gradient(180deg, var(--slate-900) 0%, var(--slate-800) 100%);
  color: var(--white);
  padding: 4rem 2rem 3.5rem;
  text-align: center;
  border-bottom: 1px solid var(--slate-700);
}

.hero-content {
  max-width: 780px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-block;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.25);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.hero-meta {
  color: var(--slate-400);
  font-size: 0.925rem;
  margin-top: 0.5rem;
}

/* Layout */
.page-container {
  max-width: 1080px;
  margin: 2.5rem auto 5rem;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 860px) {
  .page-container {
    grid-template-columns: 1fr;
  }
}

/* Sticky Table of Contents */
.toc-sidebar {
  position: sticky;
  top: 5.5rem;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.toc-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate-500);
  margin-bottom: 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--slate-100);
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.toc-link {
  color: var(--slate-600);
  text-decoration: none;
  font-size: 0.875rem;
  display: block;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.toc-link:hover {
  background-color: var(--slate-100);
  color: var(--primary-dark);
}

/* Content Area */
.legal-content {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 2.5rem 3rem;
  box-shadow: var(--shadow-md);
}

@media (max-width: 640px) {
  .legal-content {
    padding: 1.75rem 1.25rem;
  }
}

.legal-section {
  margin-bottom: 3rem;
  scroll-margin-top: 6rem;
}

.legal-section:last-child {
  margin-bottom: 0;
}

.legal-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--slate-100);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.legal-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--slate-800);
  margin: 1.5rem 0 0.5rem;
}

.legal-section p {
  margin-bottom: 1rem;
  color: var(--slate-700);
}

.legal-section ul,
.legal-section ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--slate-700);
}

.legal-section li {
  margin-bottom: 0.5rem;
}

.legal-section strong {
  color: var(--slate-900);
}

/* Callout Cards */
.callout {
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0;
}

.callout-info {
  background-color: var(--primary-light);
  border: 1px solid var(--primary-border);
  color: #065f46;
}

.callout-info p {
  color: #047857;
  margin: 0;
}

.callout-warning {
  background-color: var(--amber-50);
  border: 1px solid var(--amber-200);
  color: var(--amber-700);
}

.callout-warning p {
  color: #92400e;
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}

.feature-card {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.feature-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate-900);
  margin-bottom: 0.35rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--slate-600);
  margin-bottom: 0;
}

/* Contact box */
.contact-card {
  background: linear-gradient(135deg, var(--slate-900) 0%, var(--slate-800) 100%);
  color: var(--white);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-top: 1.5rem;
}

.contact-card h3 {
  color: var(--white);
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.contact-card p {
  color: var(--slate-300);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.contact-card a.btn {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background-color 0.15s ease;
}

.contact-card a.btn:hover {
  background: var(--primary-dark);
}

/* Guide Steps & Components */
.step-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 1.25rem 0;
}

.step-card {
  display: flex;
  gap: 1.25rem;
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.step-card:hover {
  border-color: var(--primary-border);
  box-shadow: var(--shadow-sm);
}

.step-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.step-body {
  flex: 1;
}

.step-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 0.35rem;
}

.step-body p {
  color: var(--slate-700);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.step-body p:last-child {
  margin-bottom: 0;
}

.step-body ul {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  padding-left: 1.25rem;
}

.ui-tag {
  display: inline-block;
  background: var(--slate-200);
  color: var(--slate-800);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.825rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--slate-300);
}

/* Footer */
.footer {
  background-color: var(--slate-900);
  color: var(--slate-400);
  padding: 3rem 2rem 2rem;
  border-top: 1px solid var(--slate-800);
}

.footer-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--slate-300);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--slate-500);
}