/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  margin: 0;
  padding-top: calc(var(--tricolor-height) + var(--header-height));
  font-family: var(--f-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--c-text);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
a { color: var(--c-navy); text-decoration: none; transition: color var(--t-fast) var(--ease-out); }
a:hover { color: var(--c-saffron-deep); }
ul, ol { padding-left: 1.1rem; }
h1, h2, h3, h4 {
  font-family: var(--f-heading);
  color: var(--c-navy-dark);
  line-height: var(--lh-tight);
  letter-spacing: -0.5px;
  margin: 0 0 var(--sp-4);
}
p { margin: 0 0 var(--sp-4); }
hr { border: 0; border-top: 1px solid var(--c-border); margin: var(--sp-8) 0; }

::selection { background: var(--c-saffron); color: var(--c-navy-dark); }

:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -10000px;
  top: 0;
  background: var(--c-navy-dark);
  color: var(--c-white);
  padding: var(--sp-3) var(--sp-4);
  z-index: 999;
}
.skip-link:focus { left: var(--sp-3); top: var(--sp-3); color: var(--c-white); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
.container--wide { max-width: var(--container-wide); }

.section {
  position: relative;
  padding-block: clamp(3rem, 6vw, 5.5rem);
  overflow: hidden;
}
.section--bg { background: var(--c-bg); }
.section--navy { background: var(--c-navy-dark); color: var(--c-white); }
.section--navy h1, .section--navy h2, .section--navy h3 { color: var(--c-white); }

.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--f-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--c-saffron-deep);
  margin-bottom: var(--sp-3);
}
.section__eyebrow::before,
.section__eyebrow::after {
  content: '';
  width: 28px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
  transform-origin: center;
  transition: transform var(--t-slow) var(--ease-out), opacity var(--t-slow) var(--ease-out);
}
.motion-section:not(.is-section-visible) .section__eyebrow::before,
.motion-section:not(.is-section-visible) .section__eyebrow::after {
  opacity: 0;
  transform: scaleX(0);
}
.section__title {
  font-size: var(--fs-h2);
  text-align: center;
  margin-bottom: var(--sp-2);
}
.section__head {
  text-align: center;
  max-width: 740px;
  margin: 0 auto var(--sp-8);
}
.section__lede { color: var(--c-subtext); }

/* Devanagari index */
.devnum {
  font-family: var(--f-devanagari);
  color: var(--c-saffron);
  font-size: 1.25rem;
  letter-spacing: 0;
}

/* ---------- Tricolor strip ---------- */
.tricolor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  height: var(--tricolor-height);
  width: 100%;
  background: var(--tricolor);
}
.tricolor::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.45), rgba(255,255,255,0.12));
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left;
  transition: transform var(--t-fast) linear;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(4px);
  transition: opacity var(--t-slow) var(--ease-out),
              transform var(--t-slow) var(--ease-out),
              filter var(--t-slow) var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
  filter: none;
}
.motion-section {
  --section-drift: 24px;
  isolation: isolate;
}
.motion-section::after {
  content: '';
  position: absolute;
  left: clamp(1rem, 6vw, 5rem);
  right: clamp(1rem, 6vw, 5rem);
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,153,51,0.42), transparent);
  opacity: 0;
  transform: scaleX(0.35);
  transition: opacity var(--t-slow) var(--ease-out), transform var(--t-slow) var(--ease-out);
  pointer-events: none;
  z-index: 0;
}
.motion-section.is-section-visible::after {
  opacity: 1;
  transform: scaleX(1);
}
.motion-section > .container {
  position: relative;
  z-index: 1;
  transition: opacity var(--t-slow) var(--ease-out),
              transform var(--t-slow) var(--ease-out),
              filter var(--t-slow) var(--ease-out);
}
.motion-section:not(.is-section-visible) > .container {
  opacity: 0.24;
  transform: translateY(var(--section-drift)) scale(0.985);
  filter: saturate(0.88);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .motion-section > .container,
  .motion-section::after,
  .section__eyebrow::before,
  .section__eyebrow::after {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }
}

/* ---------- Utilities ---------- */
.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;
}
.text-center { text-align: center; }
.muted { color: var(--c-subtext); }
.grid { display: grid; gap: var(--sp-5); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-3 { gap: var(--sp-3); }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.mt-2 { margin-top: var(--sp-2); }
.mt-4 { margin-top: var(--sp-4); }
.mt-6 { margin-top: var(--sp-6); }
.mt-8 { margin-top: var(--sp-8); }