/* Anchor Mobile Layer — tabbar, safe-area, touch-targets, sheet-patterns
 * Loaded AFTER tokens.css on every page.
 * Mobile-first: activates below 768px. Desktop keeps top-nav unchanged.
 */

/* ─── Tabbar (YouVersion-style) ─────────────────────────── */
.tabbar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 1000;
  display: none; /* default hidden — shown via media query */
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
  box-shadow: 0 -2px 12px rgba(26,20,16,0.06);
  backdrop-filter: saturate(1.4) blur(8px);
  -webkit-backdrop-filter: saturate(1.4) blur(8px);
}
.tabbar .tab-grid {
  max-width: 560px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
}
.tabbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-height: 54px;
  padding: 6px 4px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 140ms ease;
}
.tabbar a svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  transition: stroke-width 140ms ease;
}
.tabbar a[aria-current="page"] {
  color: var(--accent);
}
.tabbar a[aria-current="page"] svg {
  stroke-width: 2.4;
  fill: color-mix(in oklab, var(--accent) 12%, transparent);
}
.tabbar a:active {
  transform: scale(0.96);
  transition: transform 80ms ease;
}

/* Tabbar active state color in dark mode */
:root[data-theme="dark"] .tabbar a[aria-current="page"],
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .tabbar a[aria-current="page"] {
    color: var(--gold-pale);
  }
  :root:not([data-theme="light"]) .tabbar a[aria-current="page"] svg {
    fill: color-mix(in oklab, var(--gold-pale) 12%, transparent);
  }
}

/* ─── Mobile activation ─────────────────────────── */
@media (max-width: 768px) {
  .tabbar { display: block; }
  body { padding-bottom: calc(56px + env(safe-area-inset-bottom)) !important; }
  /* hide desktop top-nav links when mobile (keep brand + theme-toggle) */
  nav.top .menu-link,
  nav.top .nav-link,
  nav.top .connect-btn-wrap,
  nav.top button[id="connect-btn"] { display: none; }
  nav.top {
    padding: 10px 16px !important;
    padding-top: calc(10px + env(safe-area-inset-top)) !important;
  }
  /* Hero: tighter spacing */
  .hero h1 { font-size: 40px !important; line-height: 1.1 !important; }
  .hero .lead { font-size: 16px !important; }
  .container { padding-left: 16px !important; padding-right: 16px !important; }
  /* Touch-target min */
  .btn, .btn-primary, .btn-secondary, button:not(.theme-toggle) {
    min-height: 44px;
  }
}

/* ─── Sheet (modal slide-up pattern, used for verse-actions + prayer-compose) ─── */
.sheet-backdrop {
  position: fixed; inset: 0;
  background: rgba(26,20,16,0.52);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}
.sheet-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}
.sheet {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 1001;
  background: var(--bg);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  padding: 12px 16px calc(16px + env(safe-area-inset-bottom));
  transform: translateY(100%);
  transition: transform 220ms cubic-bezier(0.3,0.9,0.3,1);
  box-shadow: 0 -8px 40px rgba(26,20,16,0.24);
  max-height: 80vh;
  overflow-y: auto;
}
.sheet.open { transform: translateY(0); }
.sheet::before {
  content: "";
  display: block;
  width: 40px; height: 4px;
  border-radius: 2px;
  background: var(--line);
  margin: 4px auto 12px;
}
.sheet h3 { margin: 8px 0 12px; font-family: var(--font-serif); font-size: 22px; }
.sheet-actions { display: grid; gap: 8px; }
.sheet-action {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: background 120ms ease;
}
.sheet-action:hover, .sheet-action:active {
  background: var(--bg-card);
}
.sheet-action svg {
  width: 20px; height: 20px;
  stroke: var(--text-muted);
  stroke-width: 2;
  fill: none;
  flex: 0 0 20px;
}

/* ─── Toast (brief status messages) ─────────────────────────── */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(72px + env(safe-area-inset-bottom));
  transform: translate(-50%, 20px);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
  z-index: 2000;
  box-shadow: 0 8px 28px rgba(26,20,16,0.24);
  max-width: 90vw;
  text-align: center;
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ─── Reader improvements ─────────────────────────── */
.verse {
  position: relative;
  padding: 6px 4px;
  border-radius: 6px;
  transition: background 120ms ease;
}
.verse:active:not(.highlighted) { background: var(--paper-shadow); }
.verse .verse-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  margin-right: 6px;
  vertical-align: super;
}

/* Font size slider output classes */
.reader[data-size="s"] { font-size: 15px; line-height: 1.6; }
.reader[data-size="m"] { font-size: 18px; line-height: 1.65; }
.reader[data-size="l"] { font-size: 21px; line-height: 1.7; }
.reader[data-size="xl"] { font-size: 24px; line-height: 1.75; }

/* ─── Skeleton / Loading ─────────────────────────── */
.skeleton {
  background: linear-gradient(90deg,
    var(--paper-deep) 0%,
    var(--paper-soft) 50%,
    var(--paper-deep) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.3s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Utility ─────────────────────────── */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Highlight colors — data-attribute based, beats all other rules */
.verse[data-hl-color="yellow"] { background: #FEF3C7 !important; border-left: 3px solid #F59E0B !important; padding-left: 10px !important; border-radius: 4px !important; }
.verse[data-hl-color="green"]  { background: #D1FAE5 !important; border-left: 3px solid #10B981 !important; padding-left: 10px !important; border-radius: 4px !important; }
.verse[data-hl-color="blue"]   { background: #DBEAFE !important; border-left: 3px solid #3B82F6 !important; padding-left: 10px !important; border-radius: 4px !important; }
.verse[data-hl-color="pink"]   { background: #FCE7F3 !important; border-left: 3px solid #EC4899 !important; padding-left: 10px !important; border-radius: 4px !important; }
.verse[data-hl-color="purple"] { background: #EDE9FE !important; border-left: 3px solid #8B5CF6 !important; padding-left: 10px !important; border-radius: 4px !important; }
.verse[data-hl-color]:active { background: inherit; }