:root {
  /* === BRAND COLORS === */
  --color-primary: #823185;
  --color-primary-dark: #4a1a4c;
  --color-primary-light: #f3e8f4;
  --color-primary-mid: #9e4ba1;

  /* === ACCENT === */
  --color-gold: #e8b84b;
  --color-gold-dark: #c49a2e;

  /* === NEUTRALS === */
  --color-white: #ffffff;
  --color-light: #faf7fa;
  --color-muted: #6b7280;
  --color-border: #e2d4e3;
  --color-dark-text: #1a0a1b;

  /* === FONTS === */
  --font-logo: 'Playfair Display', Georgia, serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* === SPACING & SHAPE === */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  /* === SHADOWS === */
  --shadow-sm: 0 1px 3px rgba(130, 49, 133, 0.08);
  --shadow-md: 0 4px 16px rgba(130, 49, 133, 0.14);
  --shadow-lg: 0 8px 32px rgba(130, 49, 133, 0.2);

  /* === TRANSITIONS === */
  --transition: all 0.3s ease;

  /* === LAYOUT === */
  --max-width: 1200px;
  --section-padding: 80px 24px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark-text);
  background: var(--color-light);
  line-height: 1.65;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

main {
  min-height: 60vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-dark-text);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.9rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  font-weight: 700;
}

p {
  color: var(--color-muted);
}

.container {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding-inline: 24px;
}

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

.section-dark {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.section-dark p,
.section-dark .section-label {
  color: rgba(255, 255, 255, 0.8);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 14px;
}

.section-intro {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 36px;
  text-align: center;
}

.subjects-section {
  background: var(--color-light);
  padding: var(--section-padding);
}

.subjects-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

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

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

.tab-panel {
  display: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.tab-panel.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

.tab-panel.leaving {
  display: block;
  opacity: 0;
  pointer-events: none;
}

.subjects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.subjects-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

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

.tab-intro {
  text-align: center;
  margin-bottom: 28px;
}

.tab-intro .age-badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.tab-intro p {
  font-size: 0.95rem;
  color: var(--color-muted);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.subjects-section .subject-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.subjects-section .subject-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

.subjects-section .subject-card .icon-circle {
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.subjects-section .subject-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark-text);
  margin-bottom: 8px;
}

.subjects-section .subject-card p {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.subject-mini-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--color-gold);
  color: var(--color-primary-dark);
  font-size: 0.65rem;
  font-weight: 700;
  vertical-align: middle;
}

.bece-notice {
  background: var(--color-gold);
  color: var(--color-primary-dark);
  border-radius: var(--radius-sm);
  padding: 14px 24px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.bece-notice p {
  margin: 0;
  color: var(--color-primary-dark);
}

.remedial-tracks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 28px;
}

.track-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  border-top: 4px solid var(--color-primary);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.track-card:nth-child(2) {
  border-top-color: var(--color-gold);
}

.track-card:nth-child(3) {
  border-top-color: var(--color-primary-mid);
}

.track-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.track-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark-text);
  margin: 12px 0;
}

.track-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
}

.track-card ul li {
  padding: 6px 0;
  font-size: 0.875rem;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.track-card ul li::before {
  content: '•';
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
}

.track-card .track-cta {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 2px;
  transition: var(--transition);
}

.track-card .track-cta:hover {
  color: var(--color-primary-mid);
}

.subjects-section [data-animate].fade-in {
  transition-delay: calc(var(--i, 0) * 0.05s);
}

.remedial-summary-grid {
  margin-top: 18px;
}

.section-back-link {
  padding: 20px 24px 0;
  background: var(--color-white);
}

.page-back-link {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 2px;
  transition: var(--transition);
}

.page-back-link:hover {
  color: var(--color-primary-mid);
  border-bottom-color: var(--color-primary-mid);
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.page-hero {
  min-height: 44vh;
  display: grid;
  place-items: end center;
  padding: 160px 24px 72px;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
}

.page-hero .container {
  width: min(100%, 900px);
  text-align: center;
}

.page-hero h1 {
  color: var(--color-white);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.76);
}

.breadcrumb {
  margin-top: 14px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
}

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

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  transition: var(--transition);
}

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

.pill {
  display: inline-block;
  border-radius: 999px;
  padding: 8px 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 600;
}

.btn-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.fade-in {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 42px;
  align-items: center;
}

.about-logo-figure {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background-color: var(--color-primary-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.about-logo-img {
  width: 100%;
  max-width: 420px;
  height: auto;
  object-fit: contain;
  object-position: center;
  display: block;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  mix-blend-mode: multiply;
  border-radius: 0;
}

.info-list {
  list-style: none;
  display: grid;
  gap: 8px;
}

.text-content {
  max-width: 860px;
}

.sidebar-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

.sticky-sidebar {
  position: sticky;
  top: 120px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  padding: 20px;
}

.sticky-sidebar ul {
  list-style: none;
  display: grid;
  gap: 12px;
}

.sticky-sidebar a {
  color: var(--color-muted);
  font-weight: 500;
}

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

.content-block {
  margin-bottom: 36px;
  scroll-margin-top: 110px;
}

.icon-circle {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  font-weight: 700;
}

.sr-only {
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .about-logo-img {
    max-width: 280px;
  }

  .about-logo-figure {
    padding: 16px;
  }

  .subjects-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 8px;
    scrollbar-width: none;
  }

  .subjects-tabs::-webkit-scrollbar {
    display: none;
  }

  .bece-notice {
    align-items: flex-start;
  }
}

@media (max-width: 1024px) {
  .subjects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .subjects-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .remedial-tracks {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .subjects-grid,
  .subjects-grid-2,
  .subjects-grid-4 {
    grid-template-columns: 1fr;
  }
}