/* ============================================
   AI HIGH SCHOOL COALITION — GLOBAL STYLES
   ============================================ */

/* --- DESIGN TOKENS --- */
:root {
  /* Colors */
  --bg-dark: #1C1714;
  --bg-dark-alt: #231E19;
  --bg-cream: #F0EAE0;
  --bg-cream-alt: #E8E0D4;

  --text-primary: #F0EAE0;
  --text-secondary: #A89F94;
  --text-muted: #6B6158;
  --text-dark: #1C1714;
  --text-dark-secondary: #4A4139;

  --border-light: #3A332C;
  --border-cream: #D4CBBD;
  --accent-gold: #E8D5B5;

  /* Typography */
  --font-serif: 'Playfair Display', 'Georgia', serif;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;

  /* Spacing */
  --section-padding: clamp(80px, 10vw, 140px);
  --container-max: 1240px;
  --container-padding: clamp(20px, 5vw, 60px);

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }

/* --- UTILITIES --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.section-headline {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.section-body {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 680px;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1rem 2rem;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  background: transparent;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}

.btn:hover {
  background: var(--text-primary);
  color: var(--bg-dark);
  border-color: var(--text-primary);
}

.btn--cream {
  border-color: var(--border-cream);
  color: var(--text-dark);
}

.btn--cream:hover {
  background: var(--text-dark);
  color: var(--bg-cream);
  border-color: var(--text-dark);
}

.btn--filled {
  background: var(--text-primary);
  color: var(--bg-dark);
  border-color: var(--text-primary);
}

.btn--filled:hover {
  background: transparent;
  color: var(--text-primary);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: background 0.3s var(--ease);
}

.nav.scrolled {
  background: rgba(28, 23, 20, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.nav__brand span {
  color: var(--text-secondary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__links a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.3s;
}

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

.nav__cta {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.65rem 1.5rem;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  transition: all 0.3s var(--ease);
}

.nav__cta:hover {
  background: var(--text-primary);
  color: var(--bg-dark);
}

/* Mobile menu button */
.nav__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__menu-btn span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all 0.3s var(--ease);
}

/* Mobile overlay */
.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-dark);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.nav__mobile.active {
  display: flex;
  opacity: 1;
}

.nav__mobile a {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .nav__links,
  .nav__cta {
    display: none;
  }
  .nav__menu-btn {
    display: flex;
  }
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 100px;
  padding-bottom: var(--section-padding);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 2rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: 2px;
}

.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero__subtitle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero__headline {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
  max-width: 900px;
  margin-bottom: 2rem;
}

.hero__headline em {
  font-style: italic;
}

.hero__body {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 3rem;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 5rem;
}

/* Hero project cards */
.hero__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
}

.hero__card {
  background: var(--bg-dark-alt);
  padding: 2rem;
}

.hero__card-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.hero__card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.hero__card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.hero__card-tags {
  display: flex;
  gap: 0.5rem;
}

.hero__card-tags span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .hero__cards {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   CALLOUT BAR
   ============================================ */
.callout {
  background: var(--bg-cream);
  padding: 1.25rem 0;
  overflow: hidden;
}

.callout__inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dark);
  white-space: nowrap;
}

.callout__inner span {
  color: var(--text-dark-secondary);
}

.callout__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-dark-secondary);
  flex-shrink: 0;
}

/* ============================================
   THE MOMENT
   ============================================ */
.moment {
  padding: var(--section-padding) 0;
}

.moment__content {
  max-width: 720px;
  margin-bottom: 4rem;
}

.moment__body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.moment__highlight {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--accent-gold);
  padding-left: 1.5rem;
  border-left: 2px solid var(--accent-gold);
}

.moment__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  margin-top: 4rem;
}

.moment__stat {
  background: var(--bg-dark);
  padding: 2rem;
}

.moment__stat-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.moment__stat-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .moment__stats {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .moment__stats {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   WHAT WE OFFER
   ============================================ */
.offer {
  padding: var(--section-padding) 0;
  background: var(--bg-dark-alt);
}

.offer__header {
  margin-bottom: 4rem;
}

.offer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
}

.offer__item {
  background: var(--bg-dark-alt);
  padding: 2.5rem;
}

.offer__item-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.offer__item-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 1rem;
}

.offer__item-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .offer__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   THE PROGRAM
   ============================================ */
.program {
  padding: var(--section-padding) 0;
}

.program__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.program__left {
  max-width: 540px;
}

.program__cohort-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.program__cohort-body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.program__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.program__list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.program__list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
  margin-top: 0.5rem;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .program__content {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.works {
  padding: var(--section-padding) 0;
  background: var(--bg-cream);
  color: var(--text-dark);
}

.works .section-label {
  color: var(--text-dark-secondary);
}

.works .section-headline {
  color: var(--text-dark);
}

.works .section-body {
  color: var(--text-dark-secondary);
}

.works__header {
  margin-bottom: 4rem;
}

.works__steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border: 1px solid var(--border-cream);
}

.works__step {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--border-cream);
  position: relative;
}

.works__step:last-child {
  border-right: none;
}

.works__step-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dark-secondary);
  margin-bottom: 1.5rem;
}

.works__step-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.works__step-subtitle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dark-secondary);
  margin-bottom: 1rem;
}

.works__step-desc {
  font-size: 0.85rem;
  color: var(--text-dark-secondary);
  line-height: 1.5;
}

@media (max-width: 1024px) {
  .works__steps {
    grid-template-columns: 1fr;
  }
  .works__step {
    border-right: none;
    border-bottom: 1px solid var(--border-cream);
  }
  .works__step:last-child {
    border-bottom: none;
  }
}

/* ============================================
   RESOURCES
   ============================================ */
.resources {
  padding: var(--section-padding) 0;
}

.resources__header {
  margin-bottom: 4rem;
}

.resources__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
}

.resources__item {
  background: var(--bg-dark);
  padding: 2.5rem;
}

.resources__item-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.resources__item-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 1rem;
}

.resources__item-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .resources__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   WHO WE ARE
   ============================================ */
.about {
  padding: var(--section-padding) 0;
  background: var(--bg-dark-alt);
}

.about__content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: start;
}

.about__body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.about__body p + p {
  margin-top: 1.5rem;
}

.about__highlight {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.5;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
}

.about__stat {
  background: var(--bg-dark-alt);
  padding: 2rem;
  text-align: center;
}

.about__stat-value {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.about__stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .about__content {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   GET INVOLVED (CTA)
   ============================================ */
.cta {
  padding: var(--section-padding) 0;
}

.cta__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 4rem;
}

.cta__header .section-headline {
  margin-bottom: 1rem;
}

.cta__header .section-body {
  margin: 0 auto;
  text-align: center;
}

.cta__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
}

.cta__card {
  background: var(--bg-dark);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  min-height: 280px;
}

.cta__card-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.cta__card-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 1rem;
}

.cta__card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: auto;
  padding-bottom: 2rem;
}

.cta__card .btn {
  align-self: flex-start;
}

@media (max-width: 1024px) {
  .cta__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .cta__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   FAQ
   ============================================ */
.faq {
  padding: var(--section-padding) 0;
  background: var(--bg-cream);
  color: var(--text-dark);
}

.faq .section-label {
  color: var(--text-dark-secondary);
}

.faq .section-headline {
  color: var(--text-dark);
}

.faq__header {
  margin-bottom: 1rem;
}

.faq__subheadline {
  color: var(--text-dark-secondary);
  margin-bottom: 3rem;
}

.faq__list {
  max-width: 800px;
  border-top: 1px solid var(--border-cream);
}

.faq__item {
  border-bottom: 1px solid var(--border-cream);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-dark);
  text-align: left;
  cursor: pointer;
  transition: color 0.3s;
}

.faq__question:hover {
  color: var(--text-dark-secondary);
}

.faq__question-icon {
  font-size: 1.5rem;
  font-weight: 300;
  line-height: 1;
  transition: transform 0.3s var(--ease);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq__item.active .faq__question-icon {
  transform: rotate(45deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease), padding 0.3s;
}

.faq__item.active .faq__answer {
  max-height: 300px;
}

.faq__answer p {
  padding-bottom: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-dark-secondary);
  line-height: 1.7;
  max-width: 640px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-light);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer__brand {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer__sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.3s;
}

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

@media (max-width: 480px) {
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ============================================
   ANIMATIONS — progressive: hidden only after JS loads
   ============================================ */
.js-ready .fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js-ready .fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}