/* Reset, typography, and layout primitives shared by every page. */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--duration) var(--ease), color var(--duration) var(--ease);
}

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

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

::selection {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-bg);
}

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

/* -------------------------------------------------------------- type */
h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  margin: 0 0 var(--space-4);
}

h1 {
  font-size: clamp(2.5rem, 4.5vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.875rem, 3vw, 2.5rem);
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.15rem;
}

p {
  margin: 0 0 var(--space-4);
  color: var(--color-ink-soft);
}

.lede {
  font-size: 1.2rem;
  color: var(--color-ink-soft);
  max-width: 60ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--color-accent);
}

.name-variants {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink-faint);
}

.name-variants [lang='bn'] {
  font-family: var(--font-bengali);
}

.name-variants [lang='sa'] {
  font-family: var(--font-devanagari);
}

/* --------------------------------------------------------------- layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.content-wrapper {
  min-height: 60vh;
  padding-top: 128px;
}

.section {
  padding: var(--space-9) 0;
}

.section-tight {
  padding: var(--space-7) 0;
}

.section-header {
  max-width: 640px;
  margin: 0 0 var(--space-7);
}

.section-header.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.rule {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-8) 0;
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 900px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .content-wrapper {
    padding-top: 108px;
  }

  h1 {
    font-size: clamp(2.1rem, 9vw, 2.75rem);
  }
}

/* ------------------------------------------------------------- helpers */
.text-muted {
  color: var(--color-ink-faint);
}

.text-accent {
  color: var(--color-accent);
}

.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;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.prose {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  line-height: 1.8;
}

.prose h2,
.prose h3 {
  margin-top: var(--space-7);
}

.prose p {
  margin-bottom: var(--space-5);
}

.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose img {
  border-radius: var(--radius-md);
  margin: var(--space-6) 0;
}

.prose blockquote {
  margin: var(--space-6) 0;
  padding-left: var(--space-5);
  border-left: 3px solid var(--color-accent);
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-ink);
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
  color: var(--color-ink-soft);
}