:root {
  --bg: #08080c;
  --surface: #111116;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --accent: #34d399;
  --accent-dim: rgba(52, 211, 153, 0.12);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --page-pad: max(1rem, var(--safe-left));
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 45% at 50% -5%, rgba(52, 211, 153, 0.07), transparent 60%),
    var(--bg);
  pointer-events: none;
}

a, button {
  touch-action: manipulation;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: 1040px;
  margin: 0 auto;
  padding: calc(1rem + var(--safe-top)) max(1.5rem, var(--page-pad)) 1rem;
}

.logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s, background 0.15s;
}
.nav a:hover,
.nav a:active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 max(1.5rem, var(--page-pad)) calc(3rem + var(--safe-bottom));
}

.hero {
  padding: 3rem 0 3rem;
  max-width: 560px;
}

.tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 9vw, 3.75rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1rem;
}

.lead {
  font-size: clamp(1rem, 2.5vw, 1.0625rem);
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 2rem;
}

.ip-btn {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  font-family: inherit;
  color: inherit;
  min-height: 48px;
  width: 100%;
  max-width: 420px;
  justify-content: flex-start;
  transition: border-color 0.15s, background 0.15s;
}
.ip-btn:hover,
.ip-btn:active {
  border-color: rgba(52, 211, 153, 0.35);
  background: #141419;
}
.ip-btn.copied {
  border-color: rgba(52, 211, 153, 0.5);
  background: var(--accent-dim);
}

.ip-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.ip-value {
  font-size: 1rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}

.ip-copy {
  font-size: 0.75rem;
  color: var(--muted);
  margin-left: auto;
}
.ip-btn.copied .ip-copy { color: var(--accent); }

.index-section {
  max-width: 1040px;
  margin: 0 auto 2.5rem;
  padding: 0 max(1.5rem, var(--page-pad));
}

.index-section--stocks {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.index-head {
  margin-bottom: 1rem;
}

.index-head h2 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0.25rem 0;
}

.index-sub {
  font-size: 0.875rem;
  color: var(--muted);
}

.index-chart {
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1rem;
  min-height: 140px;
}

.index-chart svg {
  width: 100%;
  height: auto;
  display: block;
}

.index-chart-empty {
  font-size: 0.875rem;
  color: var(--muted);
  text-align: center;
  padding: 2rem 1rem;
}

.stock-ticker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.stock-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.8125rem;
}

.stock-chip .trend-up { color: #34d399; }
.stock-chip .trend-down { color: #f87171; }
.stock-chip .trend-flat { color: var(--muted); }

.index-more {
  margin-top: 0.75rem;
  font-size: 0.875rem;
}

.index-more a {
  color: var(--accent);
  text-decoration: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.15rem 1.2rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  text-decoration: none;
  color: inherit;
  min-height: 108px;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover,
.card:active {
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}
.card.external::after {
  content: '↗';
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.7rem;
  color: var(--muted);
}

.card-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.card h2 {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card p {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.45;
  flex: 1;
}

footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: 2rem max(1.5rem, var(--page-pad)) calc(2rem + var(--safe-bottom));
  font-size: 0.8125rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* iPhone */
@media (max-width: 480px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav {
    width: 100%;
    justify-content: flex-start;
  }
  .hero { padding-top: 1.5rem; }
  .grid { grid-template-columns: 1fr; }
  .ip-btn { max-width: none; }
}

/* iPad portrait */
@media (min-width: 481px) and (max-width: 834px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .hero { max-width: none; }
}

/* iPad landscape & small desktop */
@media (min-width: 835px) {
  .grid { grid-template-columns: repeat(4, 1fr); }
  .ip-btn { width: auto; }
}

/* Landscape phone */
@media (max-height: 500px) and (orientation: landscape) {
  .hero { padding: 1.25rem 0 2rem; }
  .grid { grid-template-columns: repeat(2, 1fr); }
}