/* ── M3 Color Tokens ─────────────────────────────── */
[data-theme="dark"] {
  color-scheme: dark;
  --surface:                #0f1419;
  --surface-container:      #161c25;
  --surface-container-high: #1e2632;
  --on-surface:             #e6edf3;
  --on-surface-variant:     #9aa7b6;
  --primary:                #4ec9b0;
  --on-primary:             #003731;
  --secondary:              #5fb3f5;
  --outline:                #2a3340;
  --outline-variant:        #1c2834;
  --error:                  #e5534b;
  --warning:                #f0883e;
  --success:                #3fb950;
  --gold:                   #f1c40f;
  --gold-container:         rgba(241,196,15,0.12);
  --silver:                 #c0c5cb;
  --bronze:                 #cd7f32;
}
[data-theme="light"] {
  color-scheme: light;
  --surface:                #f4fafa;
  --surface-container:      #ffffff;
  --surface-container-high: #eef3f3;
  --on-surface:             #191c1c;
  --on-surface-variant:     #3f4948;
  --primary:                #006a6a;
  --on-primary:             #ffffff;
  --secondary:              #0a5e99;
  --outline:                #bec9c9;
  --outline-variant:        #d5e2e2;
  --error:                  #ba1a1a;
  --warning:                #7d3800;
  --success:                #006e2c;
  --gold:                   #7a5900;
  --gold-container:         #fef3c7;
  --silver:                 #5c6366;
  --bronze:                 #7a3900;
}

/* ── Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14pt; transition: background-color 0.2s, color 0.2s; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.55;
  font-size: 1rem;
}

/* ── M3 Top App Bar ──────────────────────────────── */
.app-bar {
  z-index: 20;
  background: var(--surface-container);
  border-bottom: 1px solid var(--outline);
}
.app-bar__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px 10px;
}
.app-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}
.app-bar__titles { flex: 1; min-width: 0; }
.app-bar__headline {
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.3;
  margin: 0;
  color: var(--on-surface);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.app-bar__sub {
  font-size: 0.857rem;
  color: var(--on-surface-variant);
  margin: 2px 0 0;
}
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--on-surface-variant);
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.15s;
  flex-shrink: 0;
}
.icon-btn:hover { background: color-mix(in srgb, currentColor 12%, transparent); }

/* ── Navigation Tabs (desktop) ───────────────────── */
.nav-tabs {
  display: flex;
  padding: 0 12px;
  border-top: 1px solid var(--outline);
}
.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  text-decoration: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s;
}
.nav-tab:hover { color: var(--on-surface); }
.nav-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ── Hamburger (mobile only) ─────────────────────── */
.hamburger { display: none; font-size: 1.3rem; }

/* ── Navigation Drawer (mobile) ──────────────────── */
.nav-drawer { display: none; border-top: 1px solid var(--outline); }
.nav-drawer__item {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 56px;
  padding: 0 20px;
  text-decoration: none;
  color: var(--on-surface-variant);
  font-size: 0.9rem;
  font-weight: 500;
  border-bottom: 1px solid var(--outline-variant);
  transition: background 0.15s;
}
.nav-drawer__item:last-child { border-bottom: none; }
.nav-drawer__item:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); }
.nav-drawer__item.active { color: var(--primary); background: color-mix(in srgb, var(--primary) 8%, transparent); }
.nav-drawer__icon { font-size: 1.1rem; }

/* ── Page hero ───────────────────────────────────── */
.page-hero { margin-bottom: 20px; }
.page-hero__title { font-size: 1.2rem; font-weight: 700; margin: 0 0 4px; color: var(--on-surface); line-height: 1.3; }
.page-hero__sub   { font-size: 0.857rem; color: var(--on-surface-variant); margin: 0; }

/* ── Trust box (trust.php) ───────────────────────── */
.trust-box {
  margin: 28px 0 0;
  padding: 16px 20px;
  background: var(--surface-container);
  border: 1px solid var(--outline);
  border-radius: 12px;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--on-surface-variant);
}
.trust-box h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--on-surface);
  margin: 0 0 8px;
  padding: 0;
  border: none;
}
.trust-box ul { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; }
.trust-box b { color: var(--on-surface-variant); }
.trust-box a { color: var(--secondary); }
.trust-box__more { margin: 4px 0 0; }
.trust-box__more a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; }

/* ── Footer ──────────────────────────────────────── */
footer {
  padding: 20px;
  border-top: 1px solid var(--outline);
  color: var(--on-surface-variant);
  font-size: 0.857rem;
  text-align: center;
}
footer a { color: var(--secondary); }

/* ── Term link ───────────────────────────────────── */
.term-link { color: var(--primary); text-decoration: underline dotted; font-size: inherit; }
.term-link:hover { text-decoration: underline; }

/* ── Mobile ──────────────────────────────────────── */
@media (max-width: 600px) {
  .app-bar__headline { font-size: 1rem; }
  .hamburger { display: flex; }
  .nav-drawer.open { display: block; }
  .nav-tabs { display: none; }
}