:root {
  --pink:  #FF69B4;
  --coral: #FF6B35;
  --cyan:  #00C8E8;
  --bg:    #F0FAFF;
}

@font-face {
  font-family: 'StrangerDoctor';
  src: url('fonts/StrangerDoctor.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--bg);
  color: #222;
}

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

/* ── Stripe ─────────────────────────────────── */
.stripe { display: flex; height: 6px; }
.stripe-pink  { flex: 1; background: var(--pink); }
.stripe-coral { flex: 1; background: var(--coral); }
.stripe-cyan  { flex: 1; background: var(--cyan); }

/* ── Nav ────────────────────────────────────── */
.nav {
  background: #fff;
  padding: 14px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #e0eef4;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.logo { display: block; }

.logo-name {
  font-family: 'StrangerDoctor', cursive;
  font-size: 1.9rem;
  color: #222;
  -webkit-text-stroke: 2px var(--pink);
  paint-order: stroke fill;
  line-height: 1;
  display: block;
}

.logo-sub {
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: 3px;
  display: block;
  -webkit-text-stroke: 0;
}

.nav-links { display: flex; gap: 4px; align-items: center; }

.nav-links a {
  color: var(--pink);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 16px;
  transition: background 0.15s, color 0.15s;
}

.nav-links a:hover  { background: #f2f2f2; color: #222; }
.nav-links a.active { background: var(--pink); color: #fff; }

/* ── Hero ───────────────────────────────────── */
.hero {
  background: rgba(255,105,180,0.2);
  padding: 36px 40px;
  border-bottom: 1px solid #f0d4e8;
  display: flex;
  align-items: stretch;
  gap: 40px;
}

.hero-text { flex: 1; min-width: 0; }

.hero-badge {
  display: inline-block;
  background: var(--coral);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 11px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.hero-text h1 {
  font-size: 2.4rem;
  font-weight: 900;
  color: #222;
  line-height: 1.15;
}

.hero-text h1 em {
  font-style: normal;
  font-size: 1.15em;
  font-family: 'Lobster', cursive;
  display: inline-block;
  animation: magicalColor 2.8s ease-in-out infinite;
}

.hero-text p {
  font-size: 0.95rem;
  color: #777;
  margin-top: 14px;
  max-width: 360px;
  line-height: 1.65;
}

.hero-books { display: flex; gap: 12px; flex-shrink: 0; align-items: flex-start; }

.hero-book {
  background: var(--bg);
  border-radius: 8px;
  overflow: hidden;
  width: 106px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  border-top: 3px solid var(--pink);
  display: block;
  transition: transform 0.15s, box-shadow 0.15s;
}

.hero-book:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.14);
}

.hero-book.coral { border-top-color: var(--coral); }

.hero-book img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1.5;
  object-fit: fill;
  display: block;
}

.hero-book-title {
  font-size: 0.62rem;
  font-weight: 700;
  color: #333;
  padding: 6px 6px 4px;
  text-align: center;
  line-height: 1.3;
}

.coming-chip {
  display: block;
  background: var(--coral);
  color: #fff;
  font-size: 0.55rem;
  font-weight: 700;
  text-align: center;
  padding: 2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Section wrappers ───────────────────────── */
.section { padding: 38px 40px; }
.section-sbs   { background: rgba(255,107,53,0.5); }
.section-mma   { background: rgba(255,215,0,0.3); }
.section-about {
  background: rgba(0,200,232,0.8);
  width: 100vw;
  margin-left: calc(-1 * (100vw - 100%) / 2);
  padding-left:  calc(40px + (100vw - 100%) / 2);
  padding-right: calc(40px + (100vw - 100%) / 2);
  box-sizing: border-box;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.section-header h2 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #222;
}

.series-badge {
  padding: 3px 12px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
}

.badge-pink  { background: var(--pink); }
.badge-coral { background: var(--coral); }

.view-all {
  margin-left: auto;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--cyan);
  background: #fff;
  padding: 5px 14px;
  border: 1.5px solid var(--cyan);
  border-radius: 12px;
  transition: background 0.15s, color 0.15s;
}

.view-all:hover { background: var(--cyan); color: #fff; }

/* Page header (series/about pages) */
.page-header {
  background: #fff;
  padding: 36px 40px 28px;
  border-bottom: 1px solid #e0eef4;
}

.page-header h1 {
  font-size: 1.9rem;
  font-weight: 900;
  color: #222;
}

.page-header p {
  font-size: 0.9rem;
  color: #888;
  margin-top: 6px;
}

/* ── Book grid ──────────────────────────────── */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 14px;
}

/* ── Book card ──────────────────────────────── */
.book-card {
  background: #fff;
  border-radius: 8px;
  overflow: visible;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  border-top: 4px solid var(--pink);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
  overflow: hidden;
}

.book-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}

.book-card.coral { border-top-color: var(--coral); }

.book-card img.cover {
  width: 100%;
  aspect-ratio: 1 / 1.5;
  object-fit: fill;
  display: block;
}

.book-card .info {
  padding: 8px 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex: 1;
}

.book-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: #222;
  text-align: center;
  line-height: 1.3;
}

.btns { display: flex; gap: 4px; }

.btn {
  flex: 1;
  text-align: center;
  padding: 5px 2px;
  border-radius: 5px;
  font-size: 0.68rem;
  font-weight: 700;
  color: #fff;
  display: block;
  transition: opacity 0.15s;
}

@keyframes breathePink  {
  0%,100% { transform: scale(1);    box-shadow: 0 0 0   0px rgba(255,105,180,0.5); }
  50%      { transform: scale(1.06); box-shadow: 0 0 10px 4px rgba(255,105,180,0.45); }
}
@keyframes breatheCoral {
  0%,100% { transform: scale(1);    box-shadow: 0 0 0   0px rgba(255,107,53,0.5); }
  50%      { transform: scale(1.06); box-shadow: 0 0 10px 4px rgba(255,107,53,0.45); }
}
@keyframes breatheCyan  {
  0%,100% { transform: scale(1);    box-shadow: 0 0 0   0px rgba(0,200,232,0.5); }
  50%      { transform: scale(1.06); box-shadow: 0 0 10px 4px rgba(0,200,232,0.45); }
}

.btn-ebook:hover       { animation: breathePink  0.75s ease-in-out infinite; }
.btn-ebook-coral:hover { animation: breatheCoral 0.75s ease-in-out infinite; }
.btn-paper:hover       { animation: breatheCyan  0.75s ease-in-out infinite; }
.btn-soon:hover        { opacity: 1; }

.btn-ebook       { background: var(--pink); }
.btn-paper       { background: var(--cyan); }
.btn-ebook-coral { background: var(--coral); }
.btn-soon        { background: #ccc; cursor: default; }
.btn-soon:hover  { opacity: 1; }

/* Coming soon ribbon */
.ribbon {
  position: absolute;
  top: 14px;
  right: -24px;
  background: var(--coral);
  color: #fff;
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 30px;
  transform: rotate(45deg);
  letter-spacing: 0.04em;
  pointer-events: none;
}

/* ── About ──────────────────────────────────── */
.about-card {
  background: #fff;
  border-radius: 8px;
  border-top: 4px solid var(--cyan);
  padding: 26px 30px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  max-width: 660px;
}

.about-card h2 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--pink);
  margin-bottom: 10px;
}

.about-card p {
  font-size: 0.9rem;
  color: #555;
  line-height: 1.75;
}

/* ── Newsletter ─────────────────────────────── */
.newsletter-card {
  background: #fff;
  border-radius: 8px;
  border-top: 4px solid var(--coral);
  padding: 22px 30px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  max-width: 440px;
  margin-top: 16px;
}

.newsletter-card h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--coral);
  margin-bottom: 6px;
}

.newsletter-card p {
  font-size: 0.82rem;
  color: #aaa;
  font-style: italic;
}

/* ── Footer ─────────────────────────────────── */
.footer {
  background: #222;
  color: #888;
  padding: 22px 40px;
  font-size: 0.78rem;
  text-align: center;
  line-height: 1.6;
}

.footer .brand { color: var(--pink); }
.footer a { color: var(--cyan); }
.footer a:hover { text-decoration: underline; }

/* ── Special effects ────────────────────────── */

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* Stagger grid children */
.book-grid .book-card:nth-child(1)  { transition-delay: 0.00s; }
.book-grid .book-card:nth-child(2)  { transition-delay: 0.05s; }
.book-grid .book-card:nth-child(3)  { transition-delay: 0.10s; }
.book-grid .book-card:nth-child(4)  { transition-delay: 0.15s; }
.book-grid .book-card:nth-child(5)  { transition-delay: 0.20s; }
.book-grid .book-card:nth-child(6)  { transition-delay: 0.25s; }
.book-grid .book-card:nth-child(7)  { transition-delay: 0.30s; }
.book-grid .book-card:nth-child(8)  { transition-delay: 0.35s; }
.book-grid .book-card:nth-child(9)  { transition-delay: 0.10s; }
.book-grid .book-card:nth-child(10) { transition-delay: 0.15s; }
.book-grid .book-card:nth-child(11) { transition-delay: 0.20s; }
.book-grid .book-card:nth-child(12) { transition-delay: 0.25s; }
.book-grid .book-card:nth-child(13) { transition-delay: 0.30s; }

/* Enhanced hover glow + orange frame stroke */
.book-card:hover {
  box-shadow: 0 8px 28px rgba(255,105,180,0.28);
  outline: 3px solid #FF6B35;
  outline-offset: 2px;
}
.book-card.coral:hover {
  box-shadow: 0 8px 28px rgba(255,107,53,0.28);
  outline: 3px solid #FF6B35;
  outline-offset: 2px;
}

/* 3D tilt — perspective set on parent */
.book-grid { perspective: 800px; }
.book-card { transform-style: preserve-3d; }
.book-card:hover { will-change: transform; }

/* Button pop on click */
@keyframes btnPop {
  0%   { transform: scale(1); }
  40%  { transform: scale(0.91); }
  70%  { transform: scale(1.07); }
  100% { transform: scale(1); }
}
.btn-pop { animation: btnPop 0.28s ease; }
.btn:active { transform: scale(0.94); }

/* Logo shimmer */
@keyframes logoShimmer {
  0%,100% { -webkit-text-stroke-color: #FF69B4; }
  50%     { -webkit-text-stroke-color: #FF1493; }
}
.logo-name { animation: logoShimmer 3.5s ease-in-out infinite; }

/* Stripe animated shimmer */
@keyframes stripeSlide {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}
.stripe-pink {
  background: linear-gradient(90deg, #FF69B4, #FF1493, #FF69B4);
  background-size: 200%;
  animation: stripeSlide 3s linear infinite;
}
.stripe-coral {
  background: linear-gradient(90deg, #FF6B35, #FF4500, #FF6B35);
  background-size: 200%;
  animation: stripeSlide 3s linear infinite 0.5s;
}
.stripe-cyan {
  background: linear-gradient(90deg, #00C8E8, #00A0FF, #00C8E8);
  background-size: 200%;
  animation: stripeSlide 3s linear infinite 1s;
}

/* Hero sparkles */
.sparkle {
  position: absolute;
  pointer-events: none;
  z-index: 5;
  animation: floatSparkle var(--dur, 2s) ease-out forwards;
  user-select: none;
}

@keyframes floatSparkle {
  0%   { transform: translateY(0) scale(1) rotate(0deg);   opacity: 1; }
  100% { transform: translateY(-90px) scale(0.2) rotate(30deg); opacity: 0; }
}

/* Wave dividers */
.wave-divider {
  display: block;
  line-height: 0;
  margin-bottom: -1px;
}
.wave-divider svg { display: block; width: 100%; }

/* Hero book hover lift */
.hero-book { transition: transform 0.18s ease, box-shadow 0.18s ease; }
.hero-book:hover {
  transform: translateY(-5px) scale(1.04);
  box-shadow: 0 10px 28px rgba(0,0,0,0.18);
}

/* Nav link underline slide */
.nav-links a:not(.active) {
  position: relative;
}
.nav-links a:not(.active)::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 14px; right: 14px;
  height: 2px;
  background: var(--pink);
  transform: scaleX(0);
  transition: transform 0.2s ease;
  border-radius: 2px;
}
.nav-links a:not(.active):hover::after { transform: scaleX(1); }

/* ── Scroll progress bar ────────────────────── */
#scroll-bar {
  position: fixed;
  top: 6px; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--pink), var(--coral), var(--cyan));
  z-index: 9999;
  transition: width 0.08s linear;
  pointer-events: none;
}

/* ── Cursor trail dots ──────────────────────── */
.cursor-dot {
  position: fixed;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  animation: dotFade 0.7s ease forwards;
}
@keyframes dotFade {
  0%   { opacity: 0.9; transform: translate(-50%,-50%) scale(1); }
  100% { opacity: 0;   transform: translate(-50%,-50%) scale(0); }
}

/* ── Card shine sweep ───────────────────────── */
.book-card { overflow: hidden; }
.book-card::after {
  content: '';
  position: absolute;
  top: 0; left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.45), transparent);
  transform: skewX(-18deg);
  transition: left 0.45s ease;
  pointer-events: none;
  z-index: 2;
}
.book-card:hover::after { left: 140%; }

/* ── Hero book bobbing ──────────────────────── */
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-7px); }
}
.hero-books .hero-book:nth-child(1) { animation: bob 3.2s ease-in-out infinite 0.0s; }
.hero-books .hero-book:nth-child(2) { animation: bob 3.2s ease-in-out infinite 0.5s; }
.hero-books .hero-book:nth-child(3) { animation: bob 3.2s ease-in-out infinite 1.0s; }
.hero-books .hero-book:nth-child(4) { animation: bob 3.2s ease-in-out infinite 1.5s; }
.hero-books .hero-book:hover { animation-play-state: paused; }

/* ── Ribbon pulse ───────────────────────────── */
@keyframes ribbonPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.65; }
}
.ribbon { animation: ribbonPulse 2s ease-in-out infinite; }

/* ── Section header underline sweep ────────── */
.section-header h2 { position: relative; display: inline-block; }
.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -5px; left: 0;
  width: 0; height: 3px;
  border-radius: 2px;
  background: var(--pink);
  transition: width 0.55s ease 0.1s;
}
.section-mma   .section-header h2::after { background: var(--coral); }
.section-about .section-header h2 { color: #fff; }
.section-about .section-header h2::after { background: #fff; }

/* About layout with tree */
.about-layout {
  display: flex;
  align-items: flex-start;
  gap: 32px;
}
.about-left { flex: 1; min-width: 0; }

/* Cherry blossom tree */
.blossom-tree {
  width: 320px;
  flex-shrink: 0;
  position: relative;
}
.blossom-tree-svg { width: 100%; height: auto; display: block; }
.blossom-petals   { position: absolute; inset: 0; pointer-events: none; overflow: visible; }

/* Branch/blossom cluster sway */
.blossom-sway-l {
  transform-box: fill-box;
  transform-origin: 152px 182px;
  animation: blossomSway 4s ease-in-out infinite;
}
.blossom-sway-c {
  transform-box: fill-box;
  transform-origin: 160px 182px;
  animation: blossomSway 4.8s ease-in-out infinite 0.6s;
}
.blossom-sway-r {
  transform-box: fill-box;
  transform-origin: 155px 200px;
  animation: blossomSway 3.8s ease-in-out infinite 1.2s;
}
.blossom-sway-t {
  transform-box: fill-box;
  transform-origin: 152px 210px;
  animation: blossomSway 5.2s ease-in-out infinite 0.9s;
}
@keyframes blossomSway {
  0%,100% { transform: rotate(-4deg); }
  50%     { transform: rotate(4deg);  }
}

@media (max-width: 700px) {
  .about-layout { flex-direction: column; }
  .blossom-tree { width: 100%; max-width: 280px; margin: 0 auto; }
}
.section-header.hdr-visible h2::after { width: 100%; }

/* ── Page fade-in ───────────────────────────── */
.page-loading { opacity: 0; }
.page-loaded  { opacity: 1; transition: opacity 0.4s ease; }

/* ── Logo bounce on load ────────────────────── */
@keyframes logoBounce {
  0%   { transform: scale(1) translateY(0); }
  30%  { transform: scale(1.06) translateY(-4px); }
  60%  { transform: scale(0.97) translateY(2px); }
  80%  { transform: scale(1.02) translateY(-2px); }
  100% { transform: scale(1) translateY(0); }
}
.logo-bounce { animation: logoBounce 0.7s ease; }

/* ── Nav link hover glow ────────────────────── */
.nav-links a:not(.active):hover {
  color: var(--pink);
  text-shadow: 0 0 8px rgba(255,105,180,0.4);
}

/* ── Hero badge pulse ───────────────────────── */
@keyframes badgePop {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.06); }
}
.hero-badge { animation: badgePop 2.5s ease-in-out infinite; }

/* ── Hero headline word reveal ──────────────── */
@keyframes wordReveal {
  0%   { opacity: 0; transform: translateY(18px) rotate(-2deg); }
  100% { opacity: 1; transform: none; }
}
.word-reveal {
  display: inline-block;
  opacity: 0;
  animation: wordReveal 0.5s cubic-bezier(0.22,1,0.36,1) forwards;
}

/* ── "magical" color cycle + glow ───────────── */
@keyframes magicalColor {
  0%,100% { color: #FF69B4; text-shadow: 0 0 14px rgba(255,105,180,0.7), 0 0 28px rgba(255,105,180,0.3); }
  33%      { color: #FF6B35; text-shadow: 0 0 14px rgba(255,107,53,0.7),  0 0 28px rgba(255,107,53,0.3); }
  66%      { color: #00C8E8; text-shadow: 0 0 14px rgba(0,200,232,0.7),   0 0 28px rgba(0,200,232,0.3); }
}

/* ── Hero rainbow art ───────────────────────── */
.hero-rainbow {
  width: 220px;
  flex-shrink: 0;
  align-self: flex-end;
  position: relative;
  pointer-events: none;
  animation: rainbowFloat 5s ease-in-out infinite;
}
.hero-rainbow > svg { width: 100%; height: auto; display: block; }

/* ── Daisy ──────────────────────────────────── */
.hero-daisy {
  position: absolute;
  width: 46px;
  bottom: -4px;
  left: 4px;
  pointer-events: none;
  transform-origin: bottom center;
  animation: daisySway 3.4s ease-in-out infinite;
  z-index: 3;
}
.hero-daisy svg { width: 100%; height: auto; display: block; }
@keyframes daisySway {
  0%,100% { transform: rotate(-8deg); }
  50%     { transform: rotate(8deg); }
}

/* ── Hero heart + orange slice ──────────────── */
.hero-heart {
  position: absolute;
  width: 34px;
  top: 14%;
  left: 29%;
  pointer-events: none;
  z-index: 4;
  animation: heartPulse 1.3s ease-in-out infinite;
}
.hero-heart svg { width: 100%; height: auto; display: block; }
@keyframes heartPulse {
  0%,100% { transform: scale(1);    filter: drop-shadow(0 0 4px rgba(255,215,0,0.5)); }
  50%     { transform: scale(1.28); filter: drop-shadow(0 0 12px rgba(255,215,0,0.9)); }
}

.hero-orange {
  position: absolute;
  width: 40px;
  bottom: 12%;
  left: 50%;
  pointer-events: none;
  z-index: 4;
  animation: orangeSpin 5s ease-in-out infinite;
}
.hero-orange svg { width: 100%; height: auto; display: block; }
@keyframes orangeSpin {
  0%,100% { transform: translateY(0)    rotate(0deg); }
  40%     { transform: translateY(-9px) rotate(20deg); }
  70%     { transform: translateY(-4px) rotate(-10deg); }
}
@keyframes rainbowFloat {
  0%,100% {
    transform: translateY(0);
    filter: drop-shadow(0 0 8px rgba(255,105,180,0.45)) drop-shadow(0 0 18px rgba(255,215,0,0.3));
  }
  50% {
    transform: translateY(-10px);
    filter: drop-shadow(0 0 22px rgba(255,105,180,0.75)) drop-shadow(0 0 40px rgba(255,215,0,0.55));
  }
}

/* ── Butterfly ──────────────────────────────── */
.hero-butterfly {
  position: absolute;
  width: 78px;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  animation: butterflyFly 4.5s ease-in-out infinite;
  z-index: 2;
}
.hero-butterfly svg { width: 100%; height: auto; display: block; }
.bf-left {
  transform-box: fill-box;
  transform-origin: right center;
  animation: wingFlap 0.38s ease-in-out infinite alternate;
}
.bf-right {
  transform-box: fill-box;
  transform-origin: left center;
  animation: wingFlap 0.38s ease-in-out infinite alternate;
}
@keyframes wingFlap {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0.1); }
}

/* ── Free-flying butterfly (desktop only) ───── */
.hero-butterfly-free {
  position: absolute;
  width: 52px;
  pointer-events: none;
  z-index: 5;
  filter: drop-shadow(0 0 5px rgba(0,200,232,0.55));
}
.hero-butterfly-free svg { width: 100%; height: auto; display: block; }
.bf2-left {
  transform-box: fill-box;
  transform-origin: right center;
  animation: wingFlap 0.44s ease-in-out infinite alternate;
}
.bf2-right {
  transform-box: fill-box;
  transform-origin: left center;
  animation: wingFlap 0.44s ease-in-out infinite alternate;
}
@keyframes butterflyFly {
  0%   { transform: translateX(-50%) translateY(0)     rotate(-10deg); }
  20%  { transform: translateX(-18%) translateY(-22px) rotate(18deg); }
  40%  { transform: translateX(-65%) translateY(-14px) rotate(-20deg); }
  60%  { transform: translateX(-40%) translateY(-26px) rotate(14deg); }
  80%  { transform: translateX(-75%) translateY(-10px) rotate(-16deg); }
  100% { transform: translateX(-50%) translateY(0)     rotate(-10deg); }
}

/* ── Lightbox ───────────────────────────────── */
#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
#lightbox.active { display: flex; }

.lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(255,105,180,0.5);
  backdrop-filter: blur(3px);
  animation: lbFadeIn 0.22s ease;
}

.lb-content {
  position: relative;
  z-index: 1;
  animation: lbScaleIn 0.28s cubic-bezier(0.22,1,0.36,1);
}

.lb-content::before {
  content: '';
  position: absolute;
  inset: -70px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center,
    rgba(255,215,0,0.55) 0%,
    rgba(255,105,180,0.5) 35%,
    transparent 70%);
  animation: glowPulse 2s ease-in-out infinite;
  z-index: -1;
  pointer-events: none;
}
@keyframes glowPulse {
  0%,100% { transform: scale(1);    opacity: 0.8; }
  50%     { transform: scale(1.14); opacity: 1;   }
}

.lb-img {
  max-width: 88vw;
  max-height: 88vh;
  border-radius: 12px;
  display: block;
  animation: frameGlow 1.8s ease-in-out infinite;
}
@keyframes frameGlow {
  0%, 100% {
    box-shadow:
      0 0 0 4px  #fff,
      0 0 0 8px  transparent,
      0 0 0 12px #00C8E8,
      0 0 0 16px transparent,
      0 0 0 20px #fff,
      0 0 0 24px transparent,
      0 0 0 29px #FF69B4,
      0 0 24px  rgba(255,105,180,0.55),
      0 0 55px  rgba(255,215,0,0.28);
  }
  50% {
    box-shadow:
      0 0 0 4px  #fff,
      0 0 0 8px  transparent,
      0 0 0 12px #00C8E8,
      0 0 0 16px transparent,
      0 0 0 20px #fff,
      0 0 0 24px transparent,
      0 0 0 29px #FF69B4,
      0 0 50px  rgba(255,105,180,0.92),
      0 0 100px rgba(255,215,0,0.55);
  }
}

.lb-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--pink);
  color: #fff;
  border: none;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.35);
  transition: background 0.15s, transform 0.15s;
  z-index: 2;
}
.lb-close:hover { background: #e0509a; transform: scale(1.1); }

@keyframes lbFadeIn  { from { opacity: 0; } to { opacity: 1; } }
@keyframes lbScaleIn { from { transform: scale(0.82); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* ── Footer brand glow ──────────────────────── */
@keyframes brandGlow {
  0%, 100% { text-shadow: 0 0 4px rgba(255,105,180,0.3); }
  50%       { text-shadow: 0 0 12px rgba(255,105,180,0.7); }
}
.footer .brand { animation: brandGlow 3s ease-in-out infinite; }

/* ── Scroll-to-top button ────────────────────── */
#scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--pink);
  color: #fff;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(255,105,180,0.45);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s;
  z-index: 9000;
  pointer-events: none;
}
#scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
#scroll-top:hover {
  background: #e0509a;
  transform: translateY(-3px);
}

/* ── Featured Educational Book ──────────────── */
.section-edu { background: rgba(76,175,80,0.12); }

.section-edu .section-header h2::after { background: #4CAF50; }

.featured-book-card {
  display: flex;
  gap: 28px;
  align-items: center;
  background: #fff;
  border-radius: 10px;
  border-left: 5px solid #4CAF50;
  padding: 24px 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.09);
  max-width: 680px;
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}

.featured-book-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(76,175,80,0.22);
}

.featured-book-card img {
  width: 130px;
  flex-shrink: 0;
  border-radius: 6px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.14);
  aspect-ratio: 1 / 1.5;
  object-fit: fill;
  display: block;
}

.featured-book-card .feat-info h3 {
  font-size: 1.1rem;
  font-weight: 800;
  color: #222;
  margin-bottom: 6px;
}

.featured-book-card .feat-info p {
  font-size: 0.86rem;
  color: #666;
  line-height: 1.6;
  margin-bottom: 16px;
}

.badge-green { background: #4CAF50; }

.btn-edu { background: #4CAF50; }

@keyframes breatheGreen {
  0%,100% { transform: scale(1);    box-shadow: 0 0 0   0px rgba(76,175,80,0.5); }
  50%      { transform: scale(1.06); box-shadow: 0 0 10px 4px rgba(76,175,80,0.45); }
}
.btn-edu:hover { animation: breatheGreen 0.75s ease-in-out infinite; }

@media (max-width: 560px) {
  .featured-book-card { flex-direction: column; align-items: flex-start; }
  .featured-book-card img { width: 100px; }
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 900px) {
  .hero { gap: 20px; }
  .hero-rainbow { width: 160px; }
  .hero-books { flex-wrap: wrap; justify-content: center; }
  .hero-book { width: 88px; }
}

/* Hamburger button */
.nav-toggle {
  display: none !important;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 8px;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--pink);
}

@media (max-width: 700px) {
  .nav { padding: 12px 18px; position: relative; }
  .nav-toggle { display: block !important; }
  .nav-links { display: none; }
  .nav.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: #fff;
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
    padding: 10px 18px 14px;
    gap: 4px;
    z-index: 200;
  }
  .nav.nav-open .nav-links a { width: 100%; text-align: left; }
  .hero { flex-direction: column; padding: 28px 18px; align-items: center; }
  .hero-text { width: 100%; }
  .hero-text h1 { font-size: 1.8rem; }
  .hero-rainbow { width: 200px; align-self: center; order: 3; }
  .hero-books { order: 2; }
  .hero-heart { top: 16%; left: 87%; }
  .section { padding: 24px 18px; }
  .page-header { padding: 24px 18px 18px; }
  .book-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; }
  .footer { padding: 16px 18px; }
}