/* =============================================================================
   THE 60-MINUTE CLINICIAN MBA — PAGE-SPECIFIC STYLES
   ============================================================================= */

/* =============================================================================
   NAVIGATION
   ============================================================================= */

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);
  background: var(--color-surface-page);
  border-bottom: 1px solid var(--color-border-default);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

.nav__logo {
  text-decoration: none;
}

.nav__logo-the {
  display: block;
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav__logo-title {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.1;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__link {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-navy);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--primitive-radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-gold);
  background-color: var(--color-clinical-light);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Hamburger Menu */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-sticky) + 1);
}

.nav__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-navy);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =============================================================================
   HERO SECTION
   ============================================================================= */

.hero {
  position: relative;
  padding: var(--space-4xl) 0;
  background: linear-gradient(135deg, var(--color-clinical-light) 0%, var(--color-clinical) 100%);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(212, 168, 75, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(30, 58, 95, 0.05) 0%, transparent 50%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__title-the {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--primitive-text-lg);
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.2em;
  margin-bottom: var(--space-xs);
}

.hero__title-the .gold-line {
  flex: 0 0 40px;
}

.hero__title-number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--heading-hero-size);
  font-weight: 800;
  color: var(--color-gold);
  line-height: 1;
  letter-spacing: -0.02em;
}

.hero__title-name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--heading-hero-size);
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-family: var(--font-subheading);
  font-size: var(--primitive-text-xl);
  font-style: italic;
  color: var(--color-text-secondary);
  line-height: 1.5;
  max-width: 540px;
  margin: var(--space-lg) 0;
}

.hero__authors {
  font-size: var(--primitive-text-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.hero__authors strong {
  color: var(--color-navy);
  font-weight: 600;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* Hero Newsletter Signup */
.hero__signup {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(30, 58, 95, 0.12);
  max-width: 520px;
}

.hero__signup-label {
  font-family: var(--font-body);
  font-size: var(--primitive-text-sm);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero__signup-form {
  display: flex;
  gap: var(--space-sm);
  align-items: stretch;
}

.hero__signup-input {
  flex: 1;
  min-width: 0;
  padding: var(--primitive-space-3) var(--primitive-space-4);
  font-family: var(--font-body);
  font-size: var(--primitive-text-base);
  color: var(--color-navy);
  background: rgba(30, 58, 95, 0.05);
  border: 2px solid rgba(30, 58, 95, 0.2);
  border-radius: var(--primitive-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.hero__signup-input::placeholder {
  color: rgba(30, 58, 95, 0.4);
}

.hero__signup-input:focus {
  outline: none;
  background: rgba(30, 58, 95, 0.02);
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(212, 168, 75, 0.15);
}

.hero__signup-form .btn {
  white-space: nowrap;
  flex-shrink: 0;
}

.hero__book {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__book-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--primitive-radius-lg);
  box-shadow:
    0 25px 50px -12px rgba(30, 58, 95, 0.25),
    0 0 0 1px rgba(30, 58, 95, 0.05);
  transform: perspective(1000px) rotateY(-5deg);
  transition: transform var(--transition-slow);
}

.hero__book:hover .hero__book-image {
  transform: perspective(1000px) rotateY(0deg);
}

/* =============================================================================
   FEATURE GRID
   ============================================================================= */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* =============================================================================
   AUTHORS
   ============================================================================= */

.authors {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.author-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.author-card:nth-child(even) {
  grid-template-columns: 1fr 280px;
}

.author-card:nth-child(even) .author-card__image {
  grid-column: 2;
  grid-row: 1;
}

.author-card:nth-child(even) .author-card__content {
  grid-column: 1;
  grid-row: 1;
}

.author-card__image {
  position: relative;
}

.author-card__image img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--primitive-radius-lg);
  box-shadow:
    0 20px 40px -12px rgba(30, 58, 95, 0.2),
    0 0 0 1px rgba(30, 58, 95, 0.05);
}

.author-card__image::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 8px;
  right: -8px;
  top: 8px;
  border: 2px solid var(--color-gold);
  border-radius: var(--primitive-radius-lg);
  z-index: -1;
}

.author-card__name {
  font-family: var(--font-heading);
  font-size: var(--primitive-text-2xl);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-lg);
}

.author-card__content p {
  font-size: var(--primitive-text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.author-card__content p:last-child {
  margin-bottom: 0;
}

/* =============================================================================
   TESTIMONIALS
   ============================================================================= */

.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.testimonial-card {
  background: white;
  border-radius: var(--card-radius);
  padding: var(--card-padding);
}

.testimonial-card__rating {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-gold);
  font-size: var(--primitive-text-lg);
  margin-bottom: var(--space-md);
}

.testimonial-card__rating span:last-child {
  font-family: var(--font-body);
  font-size: var(--primitive-text-sm);
  color: var(--color-text-secondary);
}

.testimonial-card__text {
  font-size: var(--primitive-text-base);
  color: var(--color-text-primary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.testimonial-card__footer {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-clinical);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-navy);
}

.testimonial-card__name {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-style: normal;
  color: var(--color-navy);
}

.testimonial-card__title {
  font-size: var(--primitive-text-sm);
  color: var(--color-text-secondary);
}

.testimonials__nav {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.testimonials__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.testimonials__dot--active {
  background: var(--color-gold);
}

/* =============================================================================
   TESTIMONIALS — TRANSITIONS
   ============================================================================= */

.testimonials--fade-out {
  opacity: 0;
  transition: opacity 200ms ease-out;
}

.testimonials--fade-in {
  opacity: 1;
  transition: opacity 200ms ease-out;
}

/* =============================================================================
   CHAPTERS GRID
   ============================================================================= */

.chapters-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.chapter-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border-default);
  border-radius: var(--card-radius);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.chapter-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--primitive-shadow-gold-sm);
  transform: translateY(-2px);
}

.chapter-card__number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-navy);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-size: var(--primitive-text-sm);
  font-weight: var(--primitive-weight-bold);
  border-radius: var(--primitive-radius-full);
}

.chapter-card__content {
  flex: 1;
  min-width: 0;
}

.chapter-card__title {
  font-family: var(--font-heading);
  font-size: var(--primitive-text-base);
  font-weight: var(--primitive-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
  line-height: var(--primitive-leading-snug);
}

.chapter-card__description {
  font-size: var(--primitive-text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
}

.chapters__cta {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .chapters-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================================================
   POSTS / INSIGHTS GRID
   ============================================================================= */

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.post-card {
  background: var(--color-surface-raised);
  border-radius: var(--card-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  border: 1px solid var(--color-border-default);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--primitive-shadow-lg);
  border-color: var(--color-gold);
}

.post-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  /* Safari fallback for aspect-ratio */
  min-height: 0;
  background: linear-gradient(135deg, var(--color-clinical) 0%, var(--color-clinical-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.post-card:hover .post-card__image img {
  transform: scale(1.05);
}

.post-card__image--placeholder {
  position: relative;
  flex-direction: column;
  gap: var(--space-sm);
}

.post-card__image--placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--color-navy);
  opacity: 0.15;
}

.post-card__category {
  font-family: var(--font-heading);
  font-size: var(--primitive-text-xs);
  font-weight: var(--primitive-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--primitive-tracking-caps);
  color: var(--color-navy);
  opacity: 0.35;
}

/* Category-specific gradient backgrounds */
.post-card__image--placeholder[data-category="leadership"] {
  background: linear-gradient(135deg, var(--primitive-gold-50) 0%, var(--primitive-gold-100) 50%, var(--color-clinical) 100%);
}

.post-card__image--placeholder[data-category="strategy"] {
  background: linear-gradient(135deg, var(--color-clinical-light) 0%, var(--primitive-teal-50) 50%, var(--primitive-navy-50) 100%);
}

.post-card__image--placeholder[data-category="finance"] {
  background: linear-gradient(135deg, var(--primitive-cream-100) 0%, var(--primitive-gold-50) 50%, var(--color-clinical-light) 100%);
}

.post-card__content {
  padding: var(--card-padding);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card__meta {
  font-family: var(--font-body);
  font-size: var(--primitive-text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-sm);
}

.post-card__title {
  font-family: var(--font-heading);
  font-size: var(--primitive-text-lg);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--space-sm);
}

.post-card__excerpt {
  font-size: var(--primitive-text-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex: 1;
}

.post-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: var(--primitive-text-sm);
  font-weight: 600;
  color: var(--color-teal);
  margin-top: var(--space-md);
  transition: color var(--transition-fast);
}

.post-card__link svg {
  transition: transform var(--transition-fast);
}

.post-card:hover .post-card__link {
  color: var(--color-navy);
}

.post-card:hover .post-card__link svg {
  transform: translateX(3px);
}

/* =============================================================================
   ARTICLE PAGES
   ============================================================================= */

.article__hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
}

.article__hero-inner {
  max-width: 720px;
  margin: 0 auto;
}

.article__category {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--primitive-text-xs);
  font-weight: var(--primitive-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--primitive-tracking-caps);
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}

.article__title {
  font-family: var(--font-heading);
  font-size: var(--heading-2-size);
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: var(--primitive-text-sm);
  color: var(--color-text-tertiary);
}

.article__meta-sep {
  color: var(--color-text-muted);
}

.article__body {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.article__body h2 {
  font-family: var(--font-heading);
  font-size: var(--heading-3-size);
  font-weight: 700;
  color: var(--color-navy);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.article__body p {
  font-family: var(--font-body);
  font-size: var(--body-lg-size);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

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

.article__body blockquote {
  border-left: 3px solid var(--color-gold);
  padding-left: var(--space-lg);
  margin: var(--space-xl) 0;
  font-family: var(--font-subheading);
  font-style: italic;
  font-size: var(--body-lg-size);
  color: var(--color-text-primary);
  line-height: 1.7;
}

.article__body ul,
.article__body ol {
  font-family: var(--font-body);
  font-size: var(--body-lg-size);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.article__body li {
  margin-bottom: var(--space-sm);
}

.article__body strong {
  color: var(--color-navy);
  font-weight: 600;
}

.article__back {
  display: flex;
  align-items: center;
  width: fit-content;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: var(--primitive-text-sm);
  font-weight: 600;
  color: var(--color-teal);
  text-decoration: none;
  transition: color var(--transition-fast);
  margin-bottom: var(--space-xl);
}

.article__back:hover {
  color: var(--color-navy);
}

.article__back svg {
  transition: transform var(--transition-fast);
}

.article__back:hover svg {
  transform: translateX(-3px);
}

/* =============================================================================
   FOOTER
   ============================================================================= */

.footer {
  background: var(--color-navy);
  color: white;
  padding: var(--space-3xl) 0 var(--space-xl);
  position: relative;
  overflow: hidden;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 2fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer__logo-the {
  display: block;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.15em;
}

.footer__logo-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.2;
}

.footer__tagline {
  font-size: var(--primitive-text-base);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin: var(--space-md) 0 var(--space-lg);
  max-width: 280px;
}

.footer__nav h4 {
  font-family: var(--font-heading);
  font-size: var(--primitive-text-base);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.footer__nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__nav li {
  margin-bottom: var(--space-sm);
}

.footer__nav a {
  font-size: var(--primitive-text-sm);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer__newsletter h4 {
  font-family: var(--font-heading);
  font-size: var(--primitive-text-base);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.footer__newsletter p {
  font-size: var(--primitive-text-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-md);
}

.footer__newsletter-form {
  display: flex;
  gap: var(--space-sm);
}

.footer__newsletter-input {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--primitive-text-base);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--primitive-radius-md);
  color: white;
}

.footer__newsletter-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.footer__newsletter-input:focus {
  outline: none;
  border-color: var(--color-gold);
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer__bottom p {
  font-size: var(--primitive-text-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer__wordmark {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-heading);
  font-size: clamp(60px, 12vw, 160px);
  font-weight: 900;
  color: rgba(255, 255, 255, 0.03);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

/* =============================================================================
   RESPONSIVE STYLES
   ============================================================================= */

@media (max-width: 1024px) {
  .nav__hamburger {
    display: flex;
  }

  .nav__menu,
  .nav__actions {
    display: none;
  }

  .nav__menu.is-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-surface-page);
    padding: var(--space-xl);
    gap: var(--space-md);
    z-index: var(--z-overlay);
  }

  .nav__menu.is-open .nav__link {
    font-size: var(--primitive-text-lg);
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border-default);
  }

  .hero__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__title-the {
    justify-content: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__signup {
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero__book {
    order: -1;
    max-width: 280px;
    margin: 0 auto;
  }

  .feature-grid,
  .testimonials,
  .posts-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .author-card,
  .author-card:nth-child(even) {
    grid-template-columns: 1fr;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
  }

  .author-card:nth-child(even) .author-card__image,
  .author-card:nth-child(even) .author-card__content {
    grid-column: auto;
    grid-row: auto;
  }

  .author-card__image {
    max-width: 240px;
    margin: 0 auto;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer__brand {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: var(--space-2xl) 0;
  }

  .hero__title-number,
  .hero__title-name {
    font-size: var(--primitive-text-4xl);
  }

  .hero__signup-form {
    flex-direction: column;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__brand {
    grid-column: span 1;
  }

  .footer__newsletter-form {
    flex-direction: column;
  }
}