/* ==========================================================================
   THE CITY GRAMMAR SCHOOL (TCGS) - ABOUT US PAGE LAYOUT STYLES
   Completely distinct layout patterns: Collage, Two-Tone Split, ID-Card, Zig-Zag, 3D Flip Cards, Drag Scroller
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. PAGE HERO - Full-Width Banner with Split-Color Overlay & Breadcrumb
   -------------------------------------------------------------------------- */
.about-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(15, 31, 75, 0.94) 0%, rgba(31, 58, 147, 0.88) 100%),
              url('https://images.unsplash.com/photo-1580582932707-520aed937b7b?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  color: #FFFFFF;
  padding: clamp(5rem, 8vw, 7.5rem) 0;
  overflow: hidden;
}

.about-hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.about-hero-breadcrumb a {
  color: var(--color-accent);
}

.about-hero h1 {
  color: #FFFFFF;
  max-width: 800px;
  margin-bottom: 1rem;
}

.about-hero p {
  color: #E2E8F0;
  font-size: 1.15rem;
  max-width: 600px;
}

/* --------------------------------------------------------------------------
   2. OVERVIEW - Two-Column Text with 3-Photo Rotated Collage
   -------------------------------------------------------------------------- */
.about-overview-section {
  background: #FFFFFF;
}

.about-overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(2.5rem, 6vw, 5rem);
}

.collage-container {
  position: relative;
  height: 520px;
  width: 100%;
}

.collage-photo {
  position: absolute;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 5px solid #FFFFFF;
  transition: transform var(--transition-normal);
}

.collage-photo:hover {
  transform: scale(1.05) rotate(0deg) !important;
  z-index: 10 !important;
}

.collage-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-1 {
  width: 65%;
  height: 320px;
  top: 0;
  left: 0;
  transform: rotate(-3deg);
  z-index: 1;
}

.photo-2 {
  width: 60%;
  height: 290px;
  bottom: 0;
  right: 0;
  transform: rotate(4deg);
  z-index: 2;
}

.photo-3 {
  width: 48%;
  height: 220px;
  top: 30%;
  left: 28%;
  transform: rotate(-1deg);
  z-index: 3;
}

.collage-accent-badge {
  position: absolute;
  bottom: 20px;
  left: 10px;
  background: var(--color-accent);
  color: var(--color-secondary);
  padding: 0.75rem 1.25rem;
  border-radius: 100px;
  font-weight: 800;
  font-size: 0.85rem;
  box-shadow: var(--shadow-gold);
  z-index: 5;
}

.overview-text-block h2 {
  margin-bottom: 1.25rem;
}

.overview-text-block p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

/* --------------------------------------------------------------------------
   3. VISION & MISSION - Dynamic Two-Tone Split Screen (Hover expand)
   -------------------------------------------------------------------------- */
.vision-mission-section {
  padding: 0;
  overflow: hidden;
}

.split-screen-container {
  display: flex;
  min-height: 480px;
  width: 100%;
}

.split-pane {
  flex: 1;
  padding: clamp(3rem, 6vw, 5.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: flex 0.6s cubic-bezier(0.16, 1, 0.3, 1), background-color var(--transition-normal);
  position: relative;
}

.split-pane-dark {
  background-color: var(--color-secondary);
  color: #FFFFFF;
}

.split-pane-dark h2,
.split-pane-dark h3 {
  color: #FFFFFF;
}

.split-pane-dark p {
  color: #CBD5E1;
  font-size: 1.15rem;
  line-height: 1.8;
}

.split-pane-light {
  background-color: #F1F5F9;
  color: var(--color-text);
}

.split-pane-light h2,
.split-pane-light h3 {
  color: var(--color-secondary);
}

.split-pane-light p {
  color: var(--color-text);
  font-size: 1.15rem;
  line-height: 1.8;
}

.split-pane:hover {
  flex: 1.35;
}

.split-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.split-pane-dark .split-icon {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-accent);
}

.split-pane-light .split-icon {
  background: #FFFFFF;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   4. FOUNDER SPOTLIGHT - Horizontal "ID-Card" Badge Layout
   -------------------------------------------------------------------------- */
.founder-idcard-section {
  background: var(--color-bg);
}

.id-card-wrapper {
  max-width: 920px;
  margin: 0 auto;
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 340px 1fr;
  position: relative;
}

.id-card-lanyard-hole {
  position: absolute;
  top: 15px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 10px;
  border-radius: 10px;
  background: #CBD5E1;
  z-index: 5;
}

.id-card-left {
  background: linear-gradient(180deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  padding: 2.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: #FFFFFF;
}

.id-photo-frame {
  width: 170px;
  height: 200px;
  border-radius: 18px;
  overflow: hidden;
  border: 4px solid #FFFFFF;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.25rem;
  background: #CBD5E1;
}

.id-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.id-verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-success);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  margin-bottom: 0.75rem;
}

.id-card-name {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  font-weight: 800;
  color: #FFFFFF;
  white-space: nowrap;
  margin-bottom: 0.25rem;
}

.id-card-role {
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.id-card-right {
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.id-card-quote-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.id-card-quote {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1.4;
  margin-bottom: 1.25rem;
}

.id-card-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   5. TIMELINE OF STUDENT'S JOURNEY - Vertical Zig-Zag Layout
   -------------------------------------------------------------------------- */
.timeline-section {
  background: #FFFFFF;
}

.timeline-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem auto;
}

.zigzag-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.zigzag-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--color-border);
  transform: translateX(-50%);
}

.timeline-milestone {
  position: relative;
  width: 50%;
  padding: 1.5rem 2.5rem;
}

.timeline-milestone:nth-child(odd) {
  left: 0;
  text-align: right;
  padding-right: 3.5rem;
}

.timeline-milestone:nth-child(even) {
  left: 50%;
  text-align: left;
  padding-left: 3.5rem;
}

.timeline-pin {
  position: absolute;
  top: 2rem;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 5px solid var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31, 58, 147, 0.2);
  z-index: 2;
}

.timeline-milestone:nth-child(odd) .timeline-pin {
  right: -12px;
}

.timeline-milestone:nth-child(even) .timeline-pin {
  left: -12px;
}

.timeline-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.timeline-step-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background: var(--color-secondary);
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.timeline-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.timeline-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   6. CORE VALUES - 3D Interactive Flip Cards
   -------------------------------------------------------------------------- */
.flip-values-section {
  background: var(--color-bg);
}

.flip-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.flip-card-container {
  perspective: 1000px;
  height: 320px;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  cursor: pointer;
}

.flip-card-container:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

.flip-card-front {
  background: #FFFFFF;
  border: 2px solid var(--color-border);
}

.flip-card-front h3 {
  font-size: 1.7rem;
  margin-bottom: 0.75rem;
}

.flip-hint-pill {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(31, 58, 147, 0.08);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-top: 1rem;
}

.flip-card-back {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: #FFFFFF;
  transform: rotateY(180deg);
  border: 2px solid var(--color-accent);
}

.flip-card-back h3 {
  color: var(--color-accent);
  font-size: 1.5rem;
  margin-bottom: 0.85rem;
}

.flip-card-back p {
  color: #E2E8F0;
  font-size: 1rem;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   7. FACILITIES - Horizontal Drag-Scroll Interactive Gallery
   -------------------------------------------------------------------------- */
.facilities-scroll-section {
  background: #FFFFFF;
  overflow: hidden;
}

.facilities-scroll-track {
  display: flex;
  gap: 1.75rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 1.5rem 0 2.5rem 0;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.facility-card {
  flex: 0 0 340px;
  scroll-snap-align: start;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.facility-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.facility-img-wrap {
  height: 220px;
  position: relative;
  overflow: hidden;
  background: #CBD5E1;
}

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

.facility-card:hover .facility-img-wrap img {
  transform: scale(1.08);
}

.facility-card-body {
  padding: 1.5rem;
}

.facility-card-body h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.facility-card-body p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. CLOSING CTA STRIP - Minimalist Diagonal Ribbon
   -------------------------------------------------------------------------- */
.about-cta-strip {
  background: var(--color-secondary);
  color: #FFFFFF;
  padding: 3.5rem 0;
  border-top: 3px solid var(--color-accent);
}

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

.about-cta-text h3 {
  color: #FFFFFF;
  font-size: 1.6rem;
  margin-bottom: 0.35rem;
}

.about-cta-text p {
  color: #CBD5E1;
}

/* ==========================================================================
   RESPONSIVE QUERIES FOR ABOUT US (Tablet & Mobile)
   ========================================================================== */
@media (max-width: 900px) {
  .about-overview-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .split-screen-container {
    flex-direction: column;
    min-height: auto;
  }

  .split-pane {
    width: 100% !important;
    padding: 3rem 1.75rem;
  }

  .id-card-wrapper {
    grid-template-columns: 1fr;
  }

  .zigzag-timeline::before {
    left: 20px;
  }

  .timeline-milestone {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 55px !important;
    padding-right: 0 !important;
  }

  html[dir="rtl"] .zigzag-timeline::before {
    left: auto;
    right: 20px;
  }

  html[dir="rtl"] .timeline-milestone {
    right: 0 !important;
    left: auto !important;
    text-align: right !important;
    padding-right: 55px !important;
    padding-left: 0 !important;
  }

  .timeline-pin {
    left: 10px !important;
  }

  html[dir="rtl"] .timeline-pin {
    left: auto !important;
    right: 10px !important;
  }

  .flip-cards-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .about-hero {
    padding: 3.5rem 0;
  }

  .collage-container {
    height: 360px;
    max-width: 100%;
    overflow: hidden;
  }

  .photo-1 {
    width: 75%;
    height: 230px;
    transform: rotate(-2deg);
  }

  .photo-2 {
    width: 70%;
    height: 210px;
    transform: rotate(2deg);
  }

  .photo-3 {
    display: none;
  }

  .collage-accent-badge {
    bottom: 12px;
    left: 12px;
    font-size: 0.78rem;
    padding: 0.5rem 1rem;
  }

  .facilities-scroller {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    width: 100%;
    max-width: 100%;
    padding-bottom: 1.25rem;
    -webkit-overflow-scrolling: touch;
  }

  .facility-card {
    flex: 0 0 clamp(260px, 80vw, 340px);
  }

  .about-cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .about-cta-inner .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .collage-container {
    height: 290px;
  }

  .photo-1 {
    width: 82%;
    height: 190px;
    transform: none;
    left: 0;
    top: 0;
  }

  .photo-2 {
    width: 76%;
    height: 180px;
    transform: none;
    right: 0;
    bottom: 0;
  }
}