/* ═══════════════════════════════════════════════════════════════════
   NRI Outpost — Senior Mode
   Adjustable text size via data-fontscale attribute on <html>.
   Scale is stored in localStorage['nri-fontscale'] as a number (1–1.5).
   The pre-paint script in <head> applies it before first render.

   We use a CSS custom property --font-scale that multiplies base sizes.
   Rather than refactoring every px value, we apply a global transform
   via font-size on <html> which cascades through all rem/em units,
   plus explicit overrides for px-based elements.
   ═══════════════════════════════════════════════════════════════════ */

/* ─── Base scaling ──────────────────────────────────────────────── */
:root {
  --font-scale: 1;
}

/* When senior mode is active (any scale > 1), increase base font
   and apply high-contrast / large-target overrides */
html[data-senior="true"] {
  --font-scale: var(--senior-scale, 1.25);
}

/* Scale all text globally via html font-size.
   Most of the site uses px, so we also use targeted overrides below. */
html[data-senior="true"] body {
  font-size: calc(16px * var(--font-scale));
  line-height: 1.65;
  letter-spacing: 0.01em;
}

/* ─── Headings ──────────────────────────────────────────────────── */
html[data-senior="true"] h1,
html[data-senior="true"] .section-title {
  font-size: calc(36px * var(--font-scale)) !important;
}
html[data-senior="true"] h2,
html[data-senior="true"] .section-subtitle {
  font-size: calc(24px * var(--font-scale)) !important;
}
html[data-senior="true"] h3 {
  font-size: calc(20px * var(--font-scale)) !important;
}
html[data-senior="true"] h4 {
  font-size: calc(18px * var(--font-scale)) !important;
}

/* ─── Body text, paragraphs, list items ─────────────────────────── */
html[data-senior="true"] p,
html[data-senior="true"] li,
html[data-senior="true"] td,
html[data-senior="true"] th,
html[data-senior="true"] label,
html[data-senior="true"] span,
html[data-senior="true"] a,
html[data-senior="true"] .card-body,
html[data-senior="true"] .card-text,
html[data-senior="true"] .card-detail {
  font-size: calc(16px * var(--font-scale)) !important;
  line-height: 1.65 !important;
}

/* ─── Navigation ────────────────────────────────────────────────── */
html[data-senior="true"] .nav-link,
html[data-senior="true"] .nav-more-btn {
  font-size: calc(15px * var(--font-scale)) !important;
}
html[data-senior="true"] .mob-drawer-link {
  font-size: calc(17px * var(--font-scale)) !important;
  padding: calc(14px * var(--font-scale)) 24px !important;
  min-height: 56px;
}
html[data-senior="true"] .mob-tabbar .mob-tab span {
  font-size: calc(11px * var(--font-scale)) !important;
}

/* ─── Buttons — larger touch targets ────────────────────────────── */
html[data-senior="true"] button,
html[data-senior="true"] .btn,
html[data-senior="true"] .nav-cta,
html[data-senior="true"] input[type="submit"],
html[data-senior="true"] input[type="button"] {
  min-height: calc(48px * var(--font-scale));
  font-size: calc(15px * var(--font-scale)) !important;
  padding: calc(10px * var(--font-scale)) calc(20px * var(--font-scale));
}

/* ─── Form inputs ───────────────────────────────────────────────── */
html[data-senior="true"] input,
html[data-senior="true"] select,
html[data-senior="true"] textarea {
  font-size: calc(16px * var(--font-scale)) !important;
  min-height: calc(48px * var(--font-scale));
  padding: calc(10px * var(--font-scale));
}

/* ─── Cards ─────────────────────────────────────────────────────── */
html[data-senior="true"] .card,
html[data-senior="true"] [class*="card"] {
  padding: calc(16px * var(--font-scale));
}

/* ─── High contrast: ensure no light-grey-on-white ──────────────── */
html[data-senior="true"] .ink-3,
html[data-senior="true"] .text-muted,
html[data-senior="true"] small,
html[data-senior="true"] .verify-note {
  color: var(--ink-2, #4a3f33) !important;
  opacity: 1 !important;
}

/* ─── Chat widget ───────────────────────────────────────────────── */
html[data-senior="true"] .chat-msg,
html[data-senior="true"] .chat-input {
  font-size: calc(15px * var(--font-scale)) !important;
}

/* ─── Font-size slider in drawer / nav ──────────────────────────── */
.senior-controls {
  padding: 12px 24px 16px;
}
.senior-controls-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2, #4a3f33);
  margin-bottom: 8px;
}
.senior-controls-label svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.senior-slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.senior-slider-row .sz-label {
  font-size: 12px;
  color: var(--ink-3, #7a6f60);
  user-select: none;
  flex-shrink: 0;
}
.senior-slider-row .sz-label.sz-big {
  font-size: 18px;
  font-weight: 700;
}
.senior-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--rule, #d8cdb5);
  outline: none;
  cursor: pointer;
}
.senior-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--saffron, #c75a2a);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,.2);
  cursor: pointer;
}
.senior-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--saffron, #c75a2a);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,.2);
  cursor: pointer;
}

/* Nav-bar compact version */
.nav-tools .senior-controls-compact {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-right: 4px;
}
.nav-tools .senior-controls-compact .sz-label {
  font-size: 11px;
  color: var(--ink-3, #7a6f60);
  cursor: default;
}
.nav-tools .senior-controls-compact .sz-label.sz-big {
  font-size: 16px;
  font-weight: 700;
}
.nav-tools .senior-controls-compact .senior-slider {
  width: 70px;
  height: 4px;
}
.nav-tools .senior-controls-compact .senior-slider::-webkit-slider-thumb {
  width: 16px;
  height: 16px;
}
.nav-tools .senior-controls-compact .senior-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
}

/* Hide compact slider on mobile, show full slider in drawer */
@media (max-width: 920px) {
  .nav-tools .senior-controls-compact { display: none; }
}
@media (min-width: 921px) {
  .mob-drawer .senior-controls { display: none; }
}
