/* ==========================================================================
   EDURICH INTERNATIONAL CAMPUS - BASE STYLES & RESET
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

section[id],
[id].section,
.team-anchor-target {
  scroll-margin-top: 85px;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  color: var(--color-text-main);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

h1 { font-size: clamp(2rem, 4vw, var(--font-size-4xl)); }
h2 { font-size: clamp(1.6rem, 3vw, var(--font-size-3xl)); }
h3 { font-size: clamp(1.3rem, 2vw, var(--font-size-2xl)); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-muted);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
  background: none;
}

/* Accessible Keyboard Focus Indicators */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.container-narrow {
  max-width: 960px;
}

.container-fluid {
  max-width: 100%;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

/* Page Section Spacing */
.section {
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

.section-sm {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

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

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

/* Common Section Header Typography */
.section-header {
  margin-bottom: var(--spacing-2xl);
}

.section-header.text-center {
  text-align: center;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.section-kicker::after {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background-color: var(--color-primary);
}

.section-title {
  font-size: clamp(1.75rem, 2.5vw, var(--font-size-3xl));
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
}

.section-title .dot {
  color: var(--color-primary);
}

.section-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  max-width: 720px;
  line-height: var(--line-height-relaxed);
}

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

/* Breadcrumb Navigation */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: var(--color-border);
  font-size: 10px;
}

.breadcrumb-current {
  color: var(--color-text-main);
  font-weight: var(--font-weight-medium);
}

/* Utility Helpers */
.text-primary { color: var(--color-primary) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-white { color: var(--color-text-white) !important; }
.text-center { text-align: center !important; }
.font-bold { font-weight: var(--font-weight-bold) !important; }
.font-semibold { font-weight: var(--font-weight-semibold) !important; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

main {
  flex: 1 0 auto;
}

/* --------------------------------------------------------------------------
   GLOBAL SCROLL & ENTRANCE ANIMATION SYSTEM
   Applied across all pages (Matches Explore Edurich / index.html)
   -------------------------------------------------------------------------- */
:root {
  --anim-ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --anim-ease-snap: cubic-bezier(0.34, 1.56, 0.64, 1);
  --anim-ease-io:   cubic-bezier(0.45, 0, 0.55, 1);
  --anim-fast:      0.38s;
  --anim-base:      0.55s;
  --anim-slow:      0.72s;
}

[data-animate],
[data-hero-animate] {
  opacity: 0;
  will-change: opacity, transform;
}

@media (prefers-reduced-motion: reduce) {
  [data-animate],
  [data-hero-animate] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
  }
}

/* fade-up */
[data-animate="fade-up"],
[data-hero-animate="fade-up"] {
  transform: translateY(24px);
  transition: opacity var(--anim-base) var(--anim-ease-out),
              transform var(--anim-base) var(--anim-ease-out);
}
[data-animate="fade-up"].is-visible,
[data-hero-animate="fade-up"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* fade-up-sm (subtle, 12px) */
[data-animate="fade-up-sm"],
[data-hero-animate="fade-up-sm"] {
  transform: translateY(12px);
  transition: opacity var(--anim-fast) var(--anim-ease-out),
              transform var(--anim-fast) var(--anim-ease-out);
}
[data-animate="fade-up-sm"].is-visible,
[data-hero-animate="fade-up-sm"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* fade-left */
[data-animate="fade-left"],
[data-hero-animate="fade-left"] {
  transform: translateX(-22px);
  transition: opacity var(--anim-base) var(--anim-ease-out),
              transform var(--anim-base) var(--anim-ease-out);
}
[data-animate="fade-left"].is-visible,
[data-hero-animate="fade-left"].is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* fade-right */
[data-animate="fade-right"],
[data-hero-animate="fade-right"] {
  transform: translateX(28px);
  transition: opacity var(--anim-slow) var(--anim-ease-out),
              transform var(--anim-slow) var(--anim-ease-out);
}
[data-animate="fade-right"].is-visible,
[data-hero-animate="fade-right"].is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* scale-pop */
[data-animate="scale-pop"] {
  transform: scale(0.88) translateY(18px);
  transition: opacity var(--anim-base) var(--anim-ease-snap),
              transform var(--anim-base) var(--anim-ease-snap);
}
[data-animate="scale-pop"].is-visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* fade-in */
[data-animate="fade-in"] {
  transition: opacity var(--anim-slow) var(--anim-ease-out);
}
[data-animate="fade-in"].is-visible {
  opacity: 1;
}

/* word-reveal */
[data-animate="word-reveal"] {
  opacity: 1;
  transform: none;
}
.reveal-word {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}
.reveal-word-inner {
  display: inline-block;
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.55s var(--anim-ease-out),
              opacity 0.4s var(--anim-ease-out);
}
[data-animate="word-reveal"].is-visible .reveal-word-inner {
  transform: translateY(0);
  opacity: 1;
}

/* Progressive Scroll Reveal (Zero layout shift, 100% visible if JS unavailable) */
@media (prefers-reduced-motion: no-preference) {
  .reveal-init {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
  }
  .reveal-init.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

@media print {
  .reveal-init {
    opacity: 1 !important;
    transform: none !important;
  }
}

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

/* ==========================================================================
   MOBILE-ONLY RESPONSIVE FOUNDATION (STRICTLY <= 768px & <= 576px)
   Balances paragraph density, prevents text walls, and optimizes touch rhythm
   ========================================================================== */
@media (max-width: 768px) {
  .section {
    padding-top: 44px;
    padding-bottom: 44px;
  }

  .section-sm {
    padding-top: 28px;
    padding-bottom: 28px;
  }

  .section-header {
    margin-bottom: 24px;
  }

  .section-title {
    font-size: clamp(1.6rem, 5vw, 2.1rem);
    margin-bottom: 8px;
  }

  .section-subtitle {
    font-size: 0.95rem;
    line-height: 1.55;
  }

  p {
    font-size: 0.92rem;
    line-height: 1.58;
    margin-bottom: 14px;
  }

  /* Micro touch feedback */
  button:active,
  .btn:active,
  a.card:active {
    transform: scale(0.985);
  }
}

@media (max-width: 576px) {
  * {
    -webkit-tap-highlight-color: transparent;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .section-sm {
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .section-header {
    margin-bottom: 20px;
  }

  .section-title {
    font-size: clamp(1.45rem, 5.5vw, 1.85rem);
    line-height: 1.22;
  }

  .section-subtitle {
    font-size: 0.90rem;
    line-height: 1.52;
  }

  p {
    font-size: 0.90rem;
    line-height: 1.55;
    margin-bottom: 12px;
  }

  .breadcrumb {
    padding-top: 10px;
    padding-bottom: 10px;
    font-size: 0.72rem;
    gap: 6px;
  }
}