/* ============================================================
   SDCode — GitHub Pages Global Stylesheet
   https://sdcode-official.github.io/
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:       #0f172a;
  --navy-mid:   #1e3a5f;
  --navy-soft:  #1e293b;
  --blue:       #2563eb;
  --blue-light: #3b82f6;
  --blue-glow:  rgba(37, 99, 235, 0.15);
  --accent:     #06b6d4;
  --white:      #ffffff;
  --off-white:  #f8fafc;
  --gray-100:   #f1f5f9;
  --gray-200:   #e2e8f0;
  --gray-400:   #94a3b8;
  --gray-600:   #475569;
  --gray-800:   #1e293b;
  --text:       #0f172a;
  --text-muted: #64748b;
  --radius:     12px;
  --radius-lg:  20px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:     0 4px 16px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.04);
  --shadow-lg:  0 20px 48px rgba(0,0,0,.12), 0 8px 24px rgba(0,0,0,.06);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--off-white);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a  { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-light); text-decoration: underline; }

/* ── Layout Utilities ─────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--wide {
  max-width: 1100px;
}

/* ── Header / Nav ─────────────────────────────────────────── */
.site-header {
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-logo img {
  height: 36px;
  width: auto;
  border-radius: 10px;
  box-shadow: 0 0 0 1.5px rgba(255,255,255,0.12), 0 2px 8px rgba(0,0,0,0.35);
}

.site-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.site-logo-text span {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

/* ── Hero Section ─────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 60%, #0c2461 100%);
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(6,182,212,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -40px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(6,182,212,0.15);
  border: 1px solid rgba(6,182,212,0.3);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.hero h1 span { color: var(--accent); }

.hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.65);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.55);
  font-size: 0.85rem;
}

.hero-meta-item svg {
  flex-shrink: 0;
  opacity: 0.7;
}

/* ── Page Content Area ────────────────────────────────────── */
.page-content {
  flex: 1;
  padding: 56px 0 80px;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.card:last-child { margin-bottom: 0; }

/* ── App Cards Grid (homepage) ────────────────────────────── */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

/* Single app — constrain card width so it doesn't stretch full page */
.apps-grid--single {
  grid-template-columns: minmax(300px, 420px);
}

.app-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.app-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-light);
  text-decoration: none;
  color: inherit;
}

.app-card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.app-card-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.app-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.app-card-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
}

.link-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1.5px solid var(--gray-200);
  color: var(--text-muted);
  text-decoration: none;
  transition: all var(--transition);
}

.link-pill:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-glow);
  text-decoration: none;
}

/* ── Section Heading ──────────────────────────────────────── */
.section-heading {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 8px;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Policy / ToS Content Styles ──────────────────────────── */
.policy-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}

.policy-header::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(6,182,212,0.1) 0%, transparent 70%);
}

.policy-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.85);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.policy-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  line-height: 1.25;
}

.policy-header p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.6);
}

.policy-header .updated-date {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(6,182,212,0.12);
  border: 1px solid rgba(6,182,212,0.25);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 999px;
}

.policy-body {
  flex: 1;
  padding: 52px 0 80px;
}

.policy-toc {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 32px;
}

.policy-toc h3 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.policy-toc ol {
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.policy-toc li a {
  font-size: 0.9rem;
  color: var(--blue);
  font-weight: 500;
  text-decoration: none;
}

.policy-toc li a:hover { text-decoration: underline; }

.policy-section {
  margin-bottom: 40px;
  scroll-margin-top: 88px;
}

.policy-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gray-100);
  display: flex;
  align-items: center;
  gap: 10px;
}

.policy-section h2 .section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 8px;
  flex-shrink: 0;
}

.policy-section p {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 12px;
}

.policy-section ul, .policy-section ol {
  padding-left: 20px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.policy-section li {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.policy-section strong { color: var(--text); font-weight: 600; }

.policy-section a {
  color: var(--blue);
  font-weight: 500;
}

.info-box {
  background: linear-gradient(135deg, rgba(37,99,235,0.06) 0%, rgba(6,182,212,0.04) 100%);
  border: 1px solid rgba(37,99,235,0.15);
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  margin: 20px 0;
}

.info-box p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--navy-soft);
}

.contact-box {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  text-align: center;
  margin-top: 48px;
}

.contact-box h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.contact-box p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
}

.contact-box a.btn-contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 24px;
  border-radius: 999px;
  text-decoration: none;
  transition: all var(--transition);
}

.contact-box a.btn-contact:hover {
  background: #22d3ee;
  transform: scale(1.03);
  text-decoration: none;
}

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 0;
  font-size: 0.83rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

.breadcrumb a:hover { color: var(--blue); }

.breadcrumb .sep {
  color: var(--gray-400);
  user-select: none;
}

.breadcrumb .current {
  color: var(--text);
  font-weight: 600;
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.5);
  padding: 40px 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand img {
  height: 28px;
  border-radius: 7px;
  opacity: 0.75;
}

.footer-brand-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
}

.footer-copy {
  font-size: 0.8rem;
  line-height: 1.5;
  text-align: right;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255,255,255,0.45);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover { color: rgba(255,255,255,0.85); text-decoration: none; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .card { padding: 24px 20px; }
  .hero { padding: 56px 0 48px; }
  .hero h1 { font-size: 1.8rem; }
  .policy-header { padding: 48px 0 40px; }
  .apps-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-copy { text-align: left; }
  .site-nav { display: none; }
  .contact-box { padding: 24px 20px; }
}