/* ===== Design tokens ===== */
:root {
  --pink: #E8558F;
  --pink-soft: #FBD6E4;
  --pink-pale: #FFF0F6;
  --blue: #3E9BD6;
  --blue-soft: #CDE9FA;
  --blue-pale: #F0F9FF;
  --gold: #E8A324;
  --gold-soft: #FBE6C0;
  --ink: #3A2E3A;
  --ink-muted: #6E5F6E;
  --surface: #FFFDFB;
  --radius-lg: 32px;
  --radius-md: 20px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(232, 85, 143, 0.12);
  --shadow-hover: 0 16px 40px rgba(232, 85, 143, 0.2);
  --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--surface);
  overflow-x: hidden;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

h2 {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--pink);
  margin-bottom: 12px;
}

.section { padding: 90px 0; }
.section-subtitle {
  text-align: center;
  color: var(--ink-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--pink), #f07aae);
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 14px 34px;
  border-radius: 50px;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.btn-primary:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: var(--shadow-hover);
}

/* ===== Header / Navbar ===== */
.hero {
  position: relative;
  background: linear-gradient(180deg, var(--blue-pale) 0%, var(--pink-pale) 100%);
  overflow: hidden;
}

.navbar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--pink);
  font-size: 1.1rem;
}
.nav-logo img { width: 42px; height: 42px; border-radius: 50%; }

.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--pink);
  transition: width 0.25s ease;
}
.nav-links a:hover { color: var(--pink); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 20;
}
.nav-toggle span {
  width: 26px;
  height: 3px;
  background: var(--pink);
  border-radius: 2px;
}

.hero-content {
  position: relative;
  z-index: 5;
  text-align: center;
  padding: 40px 24px 110px;
  max-width: 720px;
  margin: 0 auto;
}
.hero-banner { margin: 0 auto 24px; max-width: 480px; width: 100%; }
.hero-tagline {
  font-size: 1.15rem;
  color: var(--ink-muted);
  margin-bottom: 28px;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.5;
  z-index: 1;
}
.blob-1 {
  width: 220px; height: 220px;
  background: var(--pink-soft);
  top: -60px; left: -60px;
  animation: float 8s ease-in-out infinite;
}
.blob-2 {
  width: 260px; height: 260px;
  background: var(--blue-soft);
  bottom: -80px; right: -80px;
  animation: float 10s ease-in-out infinite reverse;
}
@keyframes float {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-20px) translateX(15px); }
}

/* ===== Mission ===== */
.mission-intro {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
  color: var(--ink-muted);
  font-size: 1.05rem;
}
.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.mission-card {
  background: var(--pink-pale);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.mission-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}
.mission-icon { font-size: 2.4rem; margin-bottom: 12px; }
.mission-card h3 { color: var(--pink); margin: 0 0 10px; }
.mission-card p { color: var(--ink-muted); font-size: 0.95rem; margin: 0; }
.mission-outro {
  text-align: center;
  max-width: 680px;
  margin: 40px auto 0;
  color: var(--ink-muted);
  font-style: italic;
}

/* ===== Why Chapter ===== */
.why-chapter { background: var(--blue-pale); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.why-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.why-card:hover {
  transform: translateY(-6px) rotate(-1deg);
  box-shadow: var(--shadow-hover);
}
.why-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 14px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}
.why-icon-1 { background-image: url("assets/brain-searching.png"); }
.why-icon-2 { background-image: url("assets/brain-taskdone.png"); }
.why-icon-3 { background-image: url("assets/brain-readbook.png"); }
.why-icon-4 { background-image: url("assets/brain-taskdone2.png"); }
.why-card h3 { color: var(--blue); font-size: 1.05rem; margin: 0 0 8px; }
.why-card p { color: var(--ink-muted); font-size: 0.9rem; margin: 0; }
.why-chapter-form {
  text-align: center;
  max-width: 640px;
  margin: 40px auto 0;
  color: var(--ink-muted);
  font-weight: 600;
}
.why-chapter-form a { color: var(--blue); text-decoration: underline; }

/* ===== Funds ===== */
.funds-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}
.funds-wrapper .chart-box { flex-shrink: 0; }
.chart-box { width: 240px; }
.donut-chart { width: 100%; transform: rotate(-90deg); }
.donut-ring {
  fill: none;
  stroke: var(--pink-pale);
  stroke-width: 26;
}
.donut-seg {
  fill: none;
  stroke-width: 26;
  stroke-linecap: butt;
  transition: stroke-dasharray 1s ease;
}
.seg-1 { stroke: var(--pink); }
.seg-2 { stroke: var(--blue); }
.seg-3 { stroke: var(--gold); }
.donut-center-text {
  text-anchor: middle;
  fill: var(--ink);
}
.donut-center-num { font-size: 1.4rem; font-weight: 700; }
.donut-center-label { font-size: 0.7rem; fill: var(--ink-muted); }

.fund-legend {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  font-size: 1.05rem;
  max-width: 420px;
}
.fund-legend li { display: flex; align-items: flex-start; gap: 14px; }
.fund-legend li strong { color: var(--ink); }
.fund-legend li p { margin: 4px 0 0; color: var(--ink-muted); font-size: 0.9rem; }
.dot { width: 16px; height: 16px; border-radius: 50%; display: inline-block; margin-top: 4px; flex-shrink: 0; }
.dot-1 { background: var(--pink); }
.dot-2 { background: var(--blue); }
.dot-3 { background: var(--gold); }

.funds-outro {
  text-align: center;
  max-width: 640px;
  margin: 40px auto 0;
  color: var(--ink-muted);
  font-style: italic;
}

/* ===== Stats ===== */
.stats { background: linear-gradient(135deg, var(--pink-soft), var(--blue-soft)); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-box {
  background: white;
  border-radius: var(--radius-md);
  padding: 30px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}
.stat-box:hover { transform: translateY(-6px) scale(1.03); }
.stat-number {
  display: block;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--pink);
}
.stat-box p { margin: 6px 0 0; color: var(--ink-muted); font-weight: 600; }
.stat-note {
  display: block;
  margin-top: 6px;
  font-size: 0.75rem;
  color: var(--gold);
  font-weight: 600;
}

/* ===== Programs ===== */
.programs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.program-card {
  background: var(--pink-pale);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}
.program-card:hover {
  transform: translateY(-8px);
  background: white;
  box-shadow: var(--shadow-hover);
}
.program-icon { font-size: 2.2rem; margin-bottom: 12px; }
.program-card h3 { color: var(--blue); margin: 0 0 8px; font-size: 1.05rem; }
.program-card p { color: var(--ink-muted); font-size: 0.9rem; margin: 0; }

/* ===== Gallery ===== */
.gallery { background: var(--blue-pale); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gallery-item {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.gallery-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.gallery-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.4s ease;
  cursor: zoom-in;
}
.gallery-item:hover img { transform: scale(1.08); }
.gallery-item figcaption {
  padding: 12px;
  text-align: center;
  font-weight: 600;
  color: var(--pink);
  background: white;
  font-size: 0.9rem;
}

/* ===== Lightbox ===== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(58, 46, 58, 0.9);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 40px;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.lightbox.open {
  display: flex;
  opacity: 1;
}
.lightbox img {
  max-width: min(90vw, 900px);
  max-height: 78vh;
  width: auto;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  transform: scale(0.9);
  transition: transform 0.3s ease;
}
.lightbox.open img { transform: scale(1); }
.lightbox-caption {
  color: white;
  margin-top: 18px;
  font-weight: 600;
  font-size: 1.05rem;
}
.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  color: white;
  font-size: 2.4rem;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.lightbox-close:hover { transform: scale(1.15); }

/* ===== Footer ===== */
.footer {
  background: linear-gradient(135deg, #3a2e3a, #55415a);
  color: #f3e9f0;
  padding: 50px 0 0;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
  padding-bottom: 30px;
}
.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.footer-brand img { width: 56px; height: 56px; border-radius: 50%; margin-bottom: 8px; }
.footer-brand p { margin: 0; font-weight: 700; font-size: 1.1rem; }
.footer-brand span { color: var(--gold-soft); font-size: 0.85rem; }
.footer-contact h4 { margin: 0 0 10px; color: var(--pink-soft); }
.footer-contact p { margin: 4px 0; font-size: 0.95rem; }
.footer-contact a { color: var(--blue-soft); text-decoration: none; }
.social-icons { display: flex; gap: 14px; margin-top: 12px; font-size: 1.3rem; }
.social-icons a { text-decoration: none; transition: transform 0.2s ease; }
.social-icons a:hover { transform: translateY(-4px) scale(1.15); }
.footer-bottom {
  text-align: center;
  font-size: 0.8rem;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.6);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .mission-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .programs-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    height: 100vh;
    width: 240px;
    background: white;
    flex-direction: column;
    padding: 100px 30px;
    gap: 24px;
    box-shadow: -8px 0 30px rgba(0,0,0,0.1);
    transition: right 0.35s ease;
  }
  .nav-links.open { right: 0; }
  .nav-toggle { display: flex; }
  .why-grid { grid-template-columns: 1fr; }
  .programs-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .funds-wrapper { flex-direction: column; gap: 30px; }
}

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