/* ============================================
   0. IMPORTS & CUSTOM PROPERTIES
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@700;900&family=Tajawal:wght@400;700&display=swap');

:root {
  --color-primary: #000000;
  --color-secondary: #FFFFFF;
  --font-heading: 'Cairo', sans-serif;
  --font-body: 'Tajawal', sans-serif;
  --nav-height: 70px;
  --transition-speed: 0.2s;
  --section-padding: clamp(3rem, 8vw, 6rem);
  --container-max: 1200px;
}

/* ============================================
   1. RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-secondary);
  color: var(--color-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ============================================
   2. UTILITIES
   ============================================ */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section-padding {
  padding-block: var(--section-padding);
}

.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;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-speed);
  text-align: center;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.btn--primary:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary);
}

.btn--secondary {
  background-color: var(--color-secondary);
  color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.btn--white {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  border-color: var(--color-secondary);
}

.btn--white:hover {
  background-color: transparent;
  color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn--large {
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
}

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

/* ============================================
   3. NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  height: var(--nav-height);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--color-secondary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  color: var(--color-secondary);
  font-weight: 700;
  font-size: 0.95rem;
  position: relative;
  padding-bottom: 4px;
  transition: opacity var(--transition-speed);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width 0.3s ease;
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  padding: 0;
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-secondary);
  transition: all 0.3s ease;
}

/* Hamburger animation */
.nav--open .nav__hamburger span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav--open .nav__hamburger span:nth-child(2) {
  opacity: 0;
}

.nav--open .nav__hamburger span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   4. FOOTER
   ============================================ */
.footer {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding-top: var(--section-padding);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
}

.footer__col-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 1rem;
}

.footer__link {
  display: block;
  color: var(--color-secondary);
  opacity: 0.7;
  margin-bottom: 0.5rem;
  transition: opacity var(--transition-speed);
}

.footer__link:hover {
  opacity: 1;
}

.footer__tagline {
  opacity: 0.7;
  margin-top: 0.5rem;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-block: 1.5rem;
  text-align: center;
  opacity: 0.5;
  font-size: 0.875rem;
}

/* ============================================
   5. HERO PATTERNS
   ============================================ */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero--split {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  padding-inline: 1.5rem;
}

.hero--split .hero__content {
  padding-block: 3rem;
}

.hero__title {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  opacity: 0.7;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__pattern {
  display: none;
  position: relative;
  min-height: 400px;
}

.hero__pattern::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 40px,
      var(--color-primary) 40px,
      var(--color-primary) 42px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 40px,
      var(--color-primary) 40px,
      var(--color-primary) 42px
    );
  opacity: 0.08;
}

.hero__pattern::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  opacity: 0.1;
}

/* Hero centered variant */
.hero--centered {
  text-align: center;
  justify-content: center;
}

.hero--centered .hero__content {
  max-width: 800px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Hero dark variant */
.hero--dark {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.hero--dark .hero__subtitle {
  color: var(--color-secondary);
}

.hero--dark .hero__tagline {
  color: var(--color-secondary);
}

/* ============================================
   6. HOME — MARQUEE TICKER
   ============================================ */
.marquee {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding-block: 0.875rem;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 30s linear infinite;
}

.marquee__item {
  white-space: nowrap;
  padding-inline: 2rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(50%); }
}

/* ============================================
   7. HOME — STATS STRIP
   ============================================ */
.stats {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding-block: var(--section-padding);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  text-align: center;
}

.stats__number {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.5rem);
  display: block;
  margin-bottom: 0.25rem;
}

.stats__label {
  font-size: 0.95rem;
  opacity: 0.8;
}

/* ============================================
   8. HOME — FEATURED COURSE
   ============================================ */
.featured-course {
  position: relative;
  background-color: var(--color-secondary);
}

.featured-course__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.featured-course__content {
  padding-block: 2rem;
}

.featured-course__label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.featured-course__title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
}

.featured-course__highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  font-weight: 700;
}

.featured-course__highlight {
  padding: 0.5rem 1rem;
  border: 2px solid var(--color-primary);
  font-size: 0.9rem;
}

.featured-course__visual {
  position: relative;
  background-color: var(--color-primary);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
}

.featured-course__visual-text {
  color: var(--color-secondary);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(4rem, 10vw, 8rem);
  opacity: 0.1;
}

/* ============================================
   9. HOME — PILLARS
   ============================================ */
.pillars__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.pillar {
  padding: clamp(2rem, 5vw, 4rem);
}

.pillar--dark {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.pillar--light {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.pillar__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  margin-bottom: 1rem;
}

.pillar__text {
  font-size: 1.05rem;
  line-height: 1.8;
  opacity: 0.85;
}

/* ============================================
   10. HOME — TESTIMONIALS
   ============================================ */
.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.testimonial-placeholder {
  border: 2px dashed var(--color-primary);
  padding: clamp(3rem, 5vw, 5rem) 2rem;
  text-align: center;
  opacity: 0.4;
}

.testimonial-placeholder__text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
}

/* ============================================
   11. HOME — FINAL CTA
   ============================================ */
.cta-section {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding-block: var(--section-padding);
  text-align: center;
}

.cta-section__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  margin-bottom: 2rem;
}

/* ============================================
   12. ABOUT — BIO
   ============================================ */
.bio {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.bio__text p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.9;
}

/* ============================================
   13. ABOUT — TIMELINE
   ============================================ */
.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 2px;
  background-color: var(--color-primary);
}

.timeline__item {
  position: relative;
  padding-right: 2rem;
  padding-bottom: 2.5rem;
}

.timeline__item::before {
  content: '';
  position: absolute;
  right: -7px;
  top: 0.5rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.timeline__year {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.timeline__desc {
  font-size: 0.95rem;
  opacity: 0.7;
}

/* ============================================
   14. ABOUT — SKILLS
   ============================================ */
.skills__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.skill-pill {
  padding: 0.5rem 1.25rem;
  border: 2px solid var(--color-primary);
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: all var(--transition-speed);
}

.skill-pill:hover {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

/* ============================================
   15. ABOUT — VALUES
   ============================================ */
.values__item {
  text-align: center;
  padding-block: clamp(2rem, 5vw, 4rem);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.values__item:last-child {
  border-bottom: none;
}

.values__text {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

/* ============================================
   16. COURSES — GRID & CARDS
   ============================================ */
.page-header {
  padding-top: calc(var(--nav-height) + 3rem);
  padding-bottom: 2rem;
}

.page-header__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  margin-bottom: 0.75rem;
}

.page-header__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  opacity: 0.6;
  max-width: 600px;
}

.courses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.course-card {
  border: 2px solid var(--color-primary);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  position: relative;
  transition: transform var(--transition-speed);
}

.course-card:hover {
  transform: translateY(-4px);
}

.course-card__number {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(3rem, 6vw, 5rem);
  opacity: 0.08;
  position: absolute;
  top: 0.5rem;
  right: 1.5rem;
  line-height: 1;
}

.course-card__title {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 900;
  margin-bottom: 0.75rem;
  padding-top: 1rem;
}

.course-card__desc {
  font-size: 1rem;
  opacity: 0.7;
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.course-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.course-tag {
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid var(--color-primary);
}

.course-card__status {
  display: inline-block;
  padding: 0.4rem 1rem;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}

.course-card__status--live {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.course-card__status--soon {
  border: 2px dashed var(--color-primary);
  opacity: 0.5;
}

/* Coming soon card variant */
.course-card--coming-soon {
  border-style: dashed;
  opacity: 0.4;
}

.course-card--coming-soon:hover {
  transform: none;
}

.course-card--coming-soon .course-card__title {
  opacity: 0.5;
}

/* ============================================
   17. COURSE-AI — HERO
   ============================================ */
.course-hero {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding-top: calc(var(--nav-height) + 3rem);
  padding-bottom: var(--section-padding);
}

.course-hero__number {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(4rem, 10vw, 8rem);
  opacity: 0.1;
  line-height: 1;
}

.course-hero__title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
}

.course-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
  opacity: 0.7;
  font-size: 1rem;
}

.course-hero__meta span::before {
  content: '·';
  margin-inline-end: 1.5rem;
}

.course-hero__meta span:first-child::before {
  display: none;
}

/* ============================================
   18. COURSE-AI — FOR WHO
   ============================================ */
.for-who {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.for-who__col {
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.for-who__col--yes {
  border: 2px solid var(--color-primary);
}

.for-who__col--no {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.for-who__title {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 900;
  margin-bottom: 1.25rem;
}

.for-who__list {
  list-style: none;
}

.for-who__list li {
  padding-block: 0.5rem;
  padding-right: 1.5rem;
  position: relative;
  font-size: 1rem;
  line-height: 1.8;
}

.for-who__list li::before {
  position: absolute;
  right: 0;
  top: 0.6rem;
  font-weight: 900;
}

.for-who__col--yes .for-who__list li::before {
  content: '✓';
}

.for-who__col--no .for-who__list li::before {
  content: '✕';
}

/* ============================================
   19. ACCORDION (shared)
   ============================================ */
.accordion__item {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.accordion__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  cursor: pointer;
  width: 100%;
  text-align: right;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.15rem);
  background: none;
  border: none;
  color: inherit;
}

.accordion__number {
  font-weight: 900;
  opacity: 0.3;
  margin-inline-end: 1rem;
  font-size: 0.9rem;
  min-width: 2rem;
}

.accordion__title {
  flex: 1;
  text-align: start;
}

.accordion__icon {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
  margin-inline-start: 1rem;
  flex-shrink: 0;
}

.accordion__item--open .accordion__icon {
  transform: rotate(180deg);
}

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.accordion__body-inner {
  padding-bottom: 1.5rem;
  padding-right: 3rem;
  opacity: 0.7;
  line-height: 1.9;
  font-size: 1rem;
}

/* ============================================
   20. COURSE-AI — DELIVERABLES
   ============================================ */
.deliverables__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.deliverable {
  text-align: center;
  padding: 2rem;
  border: 2px solid var(--color-primary);
}

.deliverable__icon {
  width: 60px;
  height: 60px;
  margin-inline: auto;
  margin-bottom: 1.25rem;
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.deliverable__icon svg {
  width: 28px;
  height: 28px;
  fill: var(--color-primary);
}

.deliverable__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.deliverable__text {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* ============================================
   21. CONTACT — CARDS
   ============================================ */
.contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.contact-card {
  padding: clamp(2rem, 4vw, 3rem);
  text-align: center;
}

.contact-card--dark {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.contact-card--light {
  border: 2px solid var(--color-primary);
}

.contact-card__icon {
  width: 64px;
  height: 64px;
  margin-inline: auto;
  margin-bottom: 1.25rem;
}

.contact-card__icon svg {
  width: 100%;
  height: 100%;
}

.contact-card--dark .contact-card__icon svg {
  fill: var(--color-secondary);
}

.contact-card--light .contact-card__icon svg {
  fill: var(--color-primary);
}

.contact-card__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-card__text {
  font-size: 1rem;
  opacity: 0.8;
  margin-bottom: 2rem;
  line-height: 1.8;
}

/* ============================================
   22. COURSE-AI — EMOTIONAL SALES PAGE
   ============================================ */

/* Stats highlights */
.stat-highlights {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.stat-highlight {
  text-align: center;
  padding: 1.5rem;
}

.stat-highlight__number {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 5rem);
  display: block;
  line-height: 1;
  margin-bottom: 0.75rem;
}

.stat-highlight__text {
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.8;
  opacity: 0.75;
  max-width: 350px;
  margin-inline: auto;
}

/* Agitate / emotional text blocks */
.emotional-lines {
  max-width: 700px;
  margin-inline: auto;
}

.emotional-lines p {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  opacity: 0.85;
}

.emotional-lines--dark p {
  color: var(--color-secondary);
}

/* Future pacing */
.future-lines {
  max-width: 700px;
  margin-inline: auto;
}

.future-lines p {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 2;
  margin-bottom: 1.75rem;
  font-style: italic;
}

/* Course phases */
.phases {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  counter-reset: phase;
}

.phase {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  counter-increment: phase;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
}

.phase:last-child {
  border-bottom: none;
}

.phase__number {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3rem);
  opacity: 0.1;
  line-height: 1;
}

.phase__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  margin-bottom: 0.5rem;
}

.phase__sessions {
  font-size: 0.85rem;
  opacity: 0.5;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.phase__desc {
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0.7;
}

/* Detail toggle */
.detail-toggle {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 2px;
  transition: opacity var(--transition-speed);
}

.detail-toggle:hover {
  opacity: 0.6;
}

.curriculum-detail {
  display: none;
}

.curriculum-detail--open {
  display: block;
}

/* ============================================
   23. MEDIA QUERIES
   ============================================ */

/* Tablet */
@media (min-width: 768px) {
  /* Nav */
  .nav__hamburger {
    display: none !important;
  }

  .nav__links {
    display: flex !important;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr;
  }

  /* Hero split */
  .hero--split {
    grid-template-columns: 3fr 2fr;
    padding-inline: 0;
  }

  .hero--split .hero__content {
    padding-inline-start: 3rem;
  }

  .hero__pattern {
    display: block;
  }

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

  /* Featured course */
  .featured-course__inner {
    grid-template-columns: 1fr 1fr;
  }

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

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

  /* Bio */
  .bio {
    grid-template-columns: 1.5fr 1fr;
  }

  /* Timeline - centered */
  .timeline::before {
    right: 50%;
    transform: translateX(50%);
  }

  .timeline__item {
    width: 50%;
    padding-right: 2.5rem;
  }

  .timeline__item:nth-child(odd) {
    margin-right: auto;
    margin-left: 0;
    text-align: start;
    padding-right: 0;
    padding-left: 2.5rem;
  }

  .timeline__item:nth-child(odd)::before {
    right: auto;
    left: -7px;
  }

  .timeline__item:nth-child(even) {
    margin-left: auto;
    margin-right: 0;
  }

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

  /* For who */
  .for-who {
    grid-template-columns: 1fr 1fr;
  }

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

  /* Contact cards */
  .contact-cards {
    grid-template-columns: 1fr 1fr;
  }

  /* Stat highlights */
  .stat-highlights {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .hero__title {
    font-size: clamp(3.5rem, 6vw, 5.5rem);
  }

  .featured-course__content {
    padding: 3rem;
  }

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

/* Mobile nav */
@media (max-width: 767px) {
  .nav__hamburger {
    display: flex;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    right: 0;
    left: 0;
    background-color: var(--color-primary);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav--open .nav__links {
    display: flex;
  }

  .nav__link {
    font-size: 1.1rem;
    padding-block: 0.5rem;
  }
}