/**
 * Kirti Samvaad - Base & Global Styles
 * Resets, Typography, Accessibility, Containers
 */

/* Universal Box Sizing */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Document & Body */
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-family-current);
  font-size: var(--text-base);
  line-height: var(--lh-base);
  color: var(--color-text-main);
  background-color: var(--color-offwhite);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* High Contrast Selection */
::selection {
  background-color: var(--color-navy-primary);
  color: var(--color-gold);
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  background: var(--color-gold);
  color: var(--color-navy-deep);
  padding: 0.75rem 1.25rem;
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--color-navy-primary);
}

/* Accessible Focus States */
:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-navy-primary);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
  letter-spacing: -0.015em;
}

/* In Hindi, avoid negative letter spacing as it clips ligatures */
:lang(hi) h1,
:lang(hi) h2,
:lang(hi) h3,
:lang(hi) h4,
:lang(hi) h5,
:lang(hi) h6,
.lang-hi h1,
.lang-hi h2,
.lang-hi h3,
.lang-hi h4,
.lang-hi h5,
.lang-hi h6 {
  letter-spacing: normal;
  line-height: var(--lh-snug);
}

h1 {
  font-size: var(--text-display);
  line-height: var(--lh-tight);
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-main);
}

p:last-child {
  margin-bottom: 0;
}

/* Links */
a {
  color: var(--color-navy-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-gold-hover);
}

/* Lists */
ul, ol {
  list-style: none;
}

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

/* Container Utility */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Screen Reader Only Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Section Spacing Utilities */
.section {
  padding-top: clamp(3.5rem, 7vw, 6rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
  position: relative;
}

.section-dark {
  background-color: var(--color-navy-deep);
  color: var(--color-text-inverse);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

.section-dark p {
  color: var(--color-text-inverse-muted);
}

.section-white {
  background-color: var(--color-white);
}

.section-offwhite {
  background-color: var(--color-offwhite);
}

/* Section Header Typography */
.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header.text-center {
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.section-description {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--lh-base);
  margin-top: var(--space-3);
  max-width: 680px;
}

.section-dark .section-description {
  color: var(--color-text-inverse-muted);
}