/* ==========================================================================
   Dr. Sara Cheikh · Moodboard · Base layer
   Shared reset, layout primitives, and route-agnostic components.
   Route-specific typography, palette, and ornament lives in ledger.css,
   threshold.css, cartographer.css.
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

/* Sara's reading-size preference. Rebrands all rem-based type proportionally. */
html.reading-1 { font-size: 17.5px; }
html.reading-2 { font-size: 19px; }
html.reading-3 { font-size: 20.5px; }

body {
  min-height: 100vh;
  line-height: 1.5;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
}

img, svg {
  max-width: 100%;
  display: block;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

textarea {
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid currentColor;
  padding: 1rem 1.125rem;
  width: 100%;
  resize: vertical;
  min-height: 6rem;
  font-size: 1.0625rem;
  line-height: 1.55;
  opacity: 0.85;
  transition: opacity 150ms ease;
}

textarea:focus {
  outline: none;
  opacity: 1;
}

/* ==========================================================================
   Shared layout container
   ========================================================================== */

.container {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--narrow {
  max-width: 42rem;
}

.container--wide {
  max-width: 84rem;
}

section {
  padding-block: clamp(4rem, 10vw, 8rem);
}

@media (max-width: 600px) {
  section {
    padding-block: clamp(3rem, 8vw, 5rem);
  }
}

/* ==========================================================================
   Shared route navigation (sticky top)
   ========================================================================== */

.route-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 1.5rem;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.route-nav__links { margin-inline-start: auto; }

.route-nav__home {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.route-nav__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.route-nav__link {
  opacity: 0.55;
  transition: opacity 150ms ease;
  padding-block: 0.25rem;
}

.route-nav__link:hover,
.route-nav__link--active {
  opacity: 1;
}

@media (max-width: 600px) {
  .route-nav {
    padding-inline: 1rem;
  }
  .route-nav__links {
    gap: 0.875rem;
  }
}

/* ==========================================================================
   Reading size picker — injected by feedback.js into every .route-nav
   ========================================================================== */

.size-picker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-inline-start: 1.25rem;
  padding-inline-start: 1.25rem;
  border-inline-start: 1px solid currentColor;
  opacity: 0.85;
}

.size-picker__label {
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

.size-picker__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  opacity: 0.55;
  transition: opacity 150ms ease, background 150ms ease;
  font-family: 'EB Garamond', 'Literata', Georgia, serif;
  line-height: 1;
  padding: 0;
}

.size-picker__btn[data-size="0"] { font-size: 0.75rem; }
.size-picker__btn[data-size="1"] { font-size: 0.875rem; }
.size-picker__btn[data-size="2"] { font-size: 1rem; }
.size-picker__btn[data-size="3"] { font-size: 1.125rem; }

.size-picker__btn:hover { opacity: 1; }

.size-picker__btn--active {
  opacity: 1;
  background: currentColor;
}

.size-picker__btn--active > * { color: var(--swap, inherit); }

@media (max-width: 600px) {
  .size-picker { margin-inline-start: 0.75rem; padding-inline-start: 0.75rem; }
  .size-picker__label { display: none; }
}

/* ==========================================================================
   Shared palette swatch grid
   ========================================================================== */

.palette {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem;
}

.swatch {
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  aspect-ratio: 3 / 4;
  border-radius: 2px;
}

.swatch__name {
  font-size: 0.9375rem;
  font-weight: 500;
  margin-top: auto;
}

.swatch__hex {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  opacity: 0.85;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  text-transform: uppercase;
}

/* ==========================================================================
   Shared type specimen
   ========================================================================== */

.specimen {
  display: grid;
  gap: 2.5rem;
}

.specimen__sample {
  display: grid;
  gap: 0.75rem;
  padding-block: 1.5rem;
  border-top: 1px solid currentColor;
}

.specimen__label {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 500;
}

.specimen__text {
  line-height: 1.15;
}

.specimen__text--ar {
  direction: rtl;
  text-align: right;
}

/* ==========================================================================
   Shared layout mock cards
   ========================================================================== */

.mock {
  padding: 2rem;
  border: 1px solid currentColor;
  display: grid;
  gap: 0.875rem;
}

.mock__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 500;
}

.mock__title {
  font-size: clamp(1.375rem, 3vw, 2rem);
  line-height: 1.1;
}

.mock__body {
  max-width: 42rem;
}

.mock__meta {
  font-size: 0.8125rem;
  opacity: 0.7;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   Shared decision row
   ========================================================================== */

.decide {
  display: grid;
  gap: 1rem;
}

.decide__prompt {
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.85;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 500;
}

.decide__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.875rem 1.5rem;
  border: 1px solid currentColor;
  font-size: 0.9375rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 150ms ease, color 150ms ease, opacity 150ms ease;
}

.btn:hover {
  background: currentColor;
}

.btn:hover > * { color: var(--swap, inherit); }

.btn--primary { font-weight: 600; }

.btn__inner {
  color: currentColor;
  transition: color 150ms ease;
}

.btn--picked {
  background: currentColor;
}

.btn--picked .btn__inner {
  color: var(--swap, inherit);
}

.decide__status {
  font-size: 0.9375rem;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 200ms ease, transform 200ms ease;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.decide__status--shown {
  opacity: 0.9;
  transform: translateY(0);
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

.visually-hidden {
  position: absolute !important;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  width: 1px;
  height: 1px;
  overflow: hidden;
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}