/* ===================================================
   Professor Pop's Academy — Shared Design System
   Modern, animated, child-friendly educational site
   =================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Nunito:wght@400;600;700;800;900&display=swap');

/* ── CSS Variables ── */
:root {
  --font-heading: 'Fredoka One', cursive;
  --font-body: 'Nunito', sans-serif;

  /* Academy brand */
  --brand-primary: #6C3CE1;
  --brand-secondary: #FF6B6B;
  --brand-accent: #FFD93D;
  --brand-dark: #1A1A2E;
  --brand-light: #F8F6FF;

  /* Wing colors */
  --literacy-primary: #3B82F6;
  --literacy-light: #EFF6FF;
  --literacy-glow: rgba(59,130,246,0.3);

  --math-primary: #F97316;
  --math-light: #FFF7ED;
  --math-glow: rgba(249,115,22,0.3);

  --science-primary: #10B981;
  --science-light: #ECFDF5;
  --science-glow: rgba(16,185,129,0.3);

  --social-primary: #8B5CF6;
  --social-light: #F5F3FF;
  --social-glow: rgba(139,92,246,0.3);

  --writing-primary: #EC4899;
  --writing-light: #FDF2F8;
  --writing-glow: rgba(236,72,153,0.3);

  --invest-primary: #F59E0B;
  --invest-light: #FFFBEB;
  --invest-glow: rgba(245,158,11,0.3);

  /* Utilities */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.18);
  --transition: all 0.3s cubic-bezier(0.34,1.56,0.64,1);
  --transition-fast: all 0.18s ease;
}

/* ── Reset ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--brand-light);
  color: var(--brand-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Stars / floating bg elements ── */
.stars-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden;
}
.star {
  position: absolute;
  border-radius: 50%;
  background: var(--brand-accent);
  opacity: 0.12;
  animation: starFloat linear infinite;
}
@keyframes starFloat {
  0%   { transform: translateY(110vh) rotate(0deg);   opacity:0; }
  10%  { opacity: 0.15; }
  90%  { opacity: 0.15; }
  100% { transform: translateY(-10vh) rotate(720deg); opacity:0; }
}

/* ── Navigation ── */
.academy-nav {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 2px solid rgba(108,60,225,0.1);
  padding: 0.75rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.nav-brand {
  display: flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--brand-primary);
}
.nav-brand .owl { font-size: 2rem; animation: owlBob 2.5s ease-in-out infinite; }
@keyframes owlBob { 0%,100%{transform:translateY(0) rotate(-5deg);} 50%{transform:translateY(-6px) rotate(5deg);} }

.nav-links {
  display: flex; gap: 0.4rem; list-style: none; flex-wrap: wrap;
}
.nav-links a {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  font-weight: 700; font-size: 0.88rem;
  color: var(--brand-dark);
  transition: var(--transition-fast);
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
  background: var(--brand-primary); color: #fff;
}
.nav-hamburger { display:none; font-size:1.6rem; color:var(--brand-primary); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading); font-size: 1.05rem;
  font-weight: 400; letter-spacing: 0.5px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative; overflow: hidden;
}
.btn::after {
  content:''; position:absolute; inset:0;
  background:rgba(255,255,255,0.2);
  opacity:0; transition:opacity 0.2s;
}
.btn:hover::after { opacity:1; }
.btn:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--brand-primary); color: #fff; }
.btn-secondary { background: var(--brand-accent); color: var(--brand-dark); }
.btn-outline { background: transparent; border: 2.5px solid var(--brand-primary); color: var(--brand-primary); }
.btn-wing { color: #fff; }

/* ── Section titles ── */
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  text-align: center;
  margin-bottom: 0.5rem;
}
.section-sub {
  text-align: center; font-size: 1.1rem;
  color: #666; margin-bottom: 2.5rem;
}
.section-divider {
  display:flex; align-items:center; justify-content:center;
  gap:1rem; margin:0.5rem auto 2rem;
}
.divider-stars { font-size:1.4rem; }

/* ── Wing Cards ── */
.wing-card {
  border-radius: var(--radius-lg);
  padding: 2rem;
  background: #fff;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
  display: flex; flex-direction: column;
}
.wing-card::before {
  content:'';
  position:absolute; top:0; left:0; right:0;
  height: 6px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.wing-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-xl);
}
.wing-card .card-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  display: block;
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.wing-card:hover .card-icon { transform: scale(1.2) rotate(-5deg); }

.wing-card .card-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}
.wing-card .card-desc {
  font-size: 1rem; color: #555; margin-bottom: 1.2rem; flex:1;
}
.wing-card .card-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 1rem;
}
.wing-card .card-activities {
  list-style: none; margin-bottom: 1.5rem;
}
.wing-card .card-activities li {
  padding: 0.35rem 0;
  padding-left: 1.6rem;
  position: relative;
  font-size: 0.95rem;
}
.wing-card .card-activities li::before {
  content: '✦';
  position: absolute; left: 0;
  font-size: 0.7rem;
  top: 0.55rem;
}
.wing-card .card-cta {
  margin-top: auto;
  display: inline-flex; align-items:center; gap:0.4rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 1rem;
  color: #fff;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  align-self: flex-start;
}
.wing-card .card-cta:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }

/* Wing color themes */
.wing-literacy .card-title  { color: var(--literacy-primary); }
.wing-literacy::before       { background: var(--literacy-primary); }
.wing-literacy .card-tag     { background: var(--literacy-light); color: var(--literacy-primary); }
.wing-literacy .card-cta     { background: var(--literacy-primary); }
.wing-literacy .card-activities li::before { color: var(--literacy-primary); }

.wing-math .card-title   { color: var(--math-primary); }
.wing-math::before        { background: var(--math-primary); }
.wing-math .card-tag      { background: var(--math-light); color: var(--math-primary); }
.wing-math .card-cta      { background: var(--math-primary); }
.wing-math .card-activities li::before { color: var(--math-primary); }

.wing-science .card-title  { color: var(--science-primary); }
.wing-science::before       { background: var(--science-primary); }
.wing-science .card-tag     { background: var(--science-light); color: var(--science-primary); }
.wing-science .card-cta     { background: var(--science-primary); }
.wing-science .card-activities li::before { color: var(--science-primary); }

.wing-social .card-title  { color: var(--social-primary); }
.wing-social::before       { background: var(--social-primary); }
.wing-social .card-tag     { background: var(--social-light); color: var(--social-primary); }
.wing-social .card-cta     { background: var(--social-primary); }
.wing-social .card-activities li::before { color: var(--social-primary); }

.wing-writing .card-title  { color: var(--writing-primary); }
.wing-writing::before       { background: var(--writing-primary); }
.wing-writing .card-tag     { background: var(--writing-light); color: var(--writing-primary); }
.wing-writing .card-cta     { background: var(--writing-primary); }
.wing-writing .card-activities li::before { color: var(--writing-primary); }

.wing-invest .card-title  { color: var(--invest-primary); }
.wing-invest::before       { background: var(--invest-primary); }
.wing-invest .card-tag     { background: var(--invest-light); color: var(--invest-primary); }
.wing-invest .card-cta     { background: var(--invest-primary); }
.wing-invest .card-activities li::before { color: var(--invest-primary); }

/* ── Badge / Achievement Pills ── */
.badge {
  display: inline-flex; align-items:center; gap:0.4rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem; font-weight: 700;
  background: var(--brand-accent);
  color: var(--brand-dark);
  box-shadow: var(--shadow-sm);
}

/* ── Progress Bar ── */
.progress-wrap { margin: 0.5rem 0 1rem; }
.progress-label { font-weight:700; font-size:0.9rem; margin-bottom:0.3rem; display:flex; justify-content:space-between; }
.progress-track {
  height:14px; border-radius:var(--radius-full);
  background: #E9E9F0; overflow:hidden;
}
.progress-fill {
  height:100%; border-radius:var(--radius-full);
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  transition: width 1.2s cubic-bezier(0.34,1.56,0.64,1);
  position:relative;
}
.progress-fill::after {
  content:'✦'; position:absolute; right:4px; top:50%; transform:translateY(-50%);
  font-size:0.6rem; color:#fff;
}

/* ── Quiz styles ── */
.quiz-wrap { background:#fff; border-radius:var(--radius-lg); padding:2rem; box-shadow:var(--shadow-md); }
.quiz-question { font-family:var(--font-heading); font-size:1.4rem; margin-bottom:1.2rem; }
.quiz-options { display:grid; gap:0.7rem; }
.quiz-opt {
  padding:0.85rem 1.2rem;
  border:2.5px solid #E9E9F0;
  border-radius:var(--radius-md);
  font-size:1rem; font-weight:600;
  cursor:pointer;
  transition:var(--transition-fast);
  background:#fafafa;
  text-align:left;
}
.quiz-opt:hover { border-color:var(--brand-primary); background:var(--brand-light); color:var(--brand-primary); }
.quiz-opt.correct { background:#ECFDF5; border-color:#10B981; color:#065F46; }
.quiz-opt.incorrect { background:#FEF2F2; border-color:#EF4444; color:#991B1B; }
.quiz-result { margin-top:1rem; font-weight:800; font-size:1.1rem; text-align:center; min-height:1.5rem; }
.quiz-score { font-family:var(--font-heading); font-size:2rem; color:var(--brand-primary); text-align:center; margin-top:0.5rem; }

/* ── Calculator styles ── */
.calc-card {
  background:#fff; border-radius:var(--radius-lg);
  padding:1.8rem; box-shadow:var(--shadow-md);
}
.calc-card h3 { font-family:var(--font-heading); font-size:1.3rem; margin-bottom:0.3rem; }
.calc-card p { font-size:0.92rem; color:#666; margin-bottom:1rem; }
.calc-input {
  width:100%; padding:0.7rem 1rem;
  border:2px solid #E9E9F0;
  border-radius:var(--radius-sm);
  font-family:var(--font-body); font-size:1rem;
  margin-bottom:0.6rem; transition:var(--transition-fast);
  background:#fafafa;
}
.calc-input:focus { outline:none; border-color:var(--brand-primary); background:#fff; }
.calc-result {
  background: var(--brand-light);
  border-radius:var(--radius-sm);
  padding:1rem; margin-top:0.8rem;
  font-weight:800; font-size:1.1rem;
  text-align:center; color:var(--brand-primary);
}

/* ── Activity Cards ── */
.activity-card {
  background:#fff; border-radius:var(--radius-md);
  padding:1.5rem; box-shadow:var(--shadow-sm);
  transition:var(--transition);
  border-left: 4px solid var(--brand-primary);
}
.activity-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-md); }
.activity-card .act-icon { font-size:2rem; margin-bottom:0.6rem; }
.activity-card h4 { font-family:var(--font-heading); font-size:1.1rem; margin-bottom:0.3rem; }
.activity-card p { font-size:0.9rem; color:#666; }

/* ── Gamification / Star tray ── */
.star-tray {
  display:flex; align-items:center; gap:0.4rem;
  font-size:1.4rem;
}
.star-tray .star-icon { transition:transform 0.2s; cursor:pointer; }
.star-tray .star-icon:hover { transform:scale(1.3) rotate(15deg); }
.star-tray .star-icon.earned { filter:drop-shadow(0 0 4px gold); }

/* ── Mascot pop ── */
.mascot-pop {
  font-size: clamp(4rem,8vw,7rem);
  animation: popFloat 3s ease-in-out infinite;
  display:inline-block;
  filter:drop-shadow(0 8px 16px rgba(108,60,225,0.3));
}
@keyframes popFloat {
  0%,100%{ transform:translateY(0) rotate(-5deg); }
  50%{ transform:translateY(-18px) rotate(5deg); }
}

/* ── Footer ── */
.academy-footer {
  background: var(--brand-dark);
  color: rgba(255,255,255,0.8);
  padding: 3rem 2rem 2rem;
  text-align: center;
  margin-top: 4rem;
}
.footer-wings { display:flex; flex-wrap:wrap; justify-content:center; gap:0.75rem; margin-bottom:2rem; }
.footer-wing-link {
  padding:0.4rem 1rem; border-radius:var(--radius-full);
  background:rgba(255,255,255,0.1);
  color:rgba(255,255,255,0.85); font-weight:700; font-size:0.88rem;
  transition:var(--transition-fast);
}
.footer-wing-link:hover { background:var(--brand-primary); color:#fff; }
.footer-copy { font-size:0.85rem; color:rgba(255,255,255,0.5); margin-top:1rem; }

/* ── Responsive ── */
@media(max-width:768px){
  .academy-nav { padding:0.6rem 1rem; }
  .nav-links { display:none; flex-direction:column; position:absolute; top:100%; left:0; right:0; background:#fff; padding:1rem; box-shadow:var(--shadow-md); border-radius:0 0 var(--radius-md) var(--radius-md); }
  .nav-links.open { display:flex; }
  .nav-hamburger { display:block; }
  .wings-grid { grid-template-columns: 1fr; }
}
@media(max-width:480px){
  .btn { padding:0.7rem 1.4rem; font-size:0.95rem; }
}

/* ── Scroll reveal helper ── */
.reveal { opacity:0; transform:translateY(30px); }
.reveal.visible { opacity:1; transform:translateY(0); transition:opacity 0.6s ease, transform 0.6s cubic-bezier(0.34,1.56,0.64,1); }

/* ── Wings grid layout ── */
.wings-grid {
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap:1.8rem;
}

/* ── Section spacing ── */
.section { padding:4rem 2rem; max-width:1200px; margin:0 auto; }
.section-wide { padding:4rem 2rem; }

/* ── Hero specific ── */
.hero-section {
  min-height: 100vh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center;
  padding:6rem 2rem 4rem;
  position:relative;
  background: linear-gradient(135deg, #6C3CE1 0%, #a855f7 40%, #ec4899 80%, #f97316 100%);
  overflow:hidden;
}
.hero-section::before {
  content:'';
  position:absolute; inset:0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(255,255,255,0.12), transparent);
}
.hero-badge {
  display:inline-flex; align-items:center; gap:0.5rem;
  background:rgba(255,255,255,0.2);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,0.3);
  color:#fff; padding:0.4rem 1.2rem;
  border-radius:var(--radius-full);
  font-size:0.9rem; font-weight:700;
  margin-bottom:1.5rem;
}
.hero-title {
  font-family:var(--font-heading);
  font-size:clamp(2.5rem,7vw,5rem);
  color:#fff;
  text-shadow: 0 4px 24px rgba(0,0,0,0.2);
  line-height:1.1;
  margin-bottom:1rem;
}
.hero-sub {
  font-size:clamp(1rem,2.5vw,1.4rem);
  color:rgba(255,255,255,0.9);
  max-width:560px;
  margin:0 auto 2.5rem;
}
.hero-buttons { display:flex; gap:1rem; flex-wrap:wrap; justify-content:center; }
.hero-scroll-hint {
  position:absolute; bottom:2rem; left:50%; transform:translateX(-50%);
  color:rgba(255,255,255,0.7); font-size:0.9rem;
  display:flex; flex-direction:column; align-items:center; gap:0.3rem;
  animation:arrowBounce 2s ease-in-out infinite;
}
@keyframes arrowBounce { 0%,100%{transform:translateX(-50%) translateY(0);} 50%{transform:translateX(-50%) translateY(8px);} }

/* ── Wing hero banner ── */
.wing-hero {
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.wing-hero-icon { font-size:5rem; display:block; margin-bottom:1rem; animation:popFloat 3s ease-in-out infinite; }
.wing-hero-title { font-family:var(--font-heading); font-size:clamp(2rem,5vw,3.5rem); color:#fff; margin-bottom:0.75rem; }
.wing-hero-sub { font-size:1.15rem; color:rgba(255,255,255,0.9); max-width:520px; margin:0 auto 2rem; }

/* ── Tabs ── */
.tab-bar { display:flex; gap:0.5rem; flex-wrap:wrap; margin-bottom:2rem; }
.tab-btn {
  padding:0.5rem 1.2rem; border-radius:var(--radius-full);
  font-family:var(--font-heading); font-size:0.95rem;
  border:2px solid transparent;
  background:#E9E9F0; color:#666;
  transition:var(--transition-fast); cursor:pointer;
}
.tab-btn.active { background:var(--brand-primary); color:#fff; border-color:var(--brand-primary); }
.tab-btn:hover:not(.active) { border-color:var(--brand-primary); color:var(--brand-primary); background:#fff; }
.tab-panel { display:none; }
.tab-panel.active { display:block; }

/* ── Info boxes ── */
.info-box {
  background: var(--brand-light);
  border-left: 4px solid var(--brand-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1rem 1.5rem;
  margin: 1rem 0;
  font-size: 0.95rem;
}
.info-box.tip { border-color: var(--science-primary); background: var(--science-light); }
.info-box.warn { border-color: var(--invest-primary); background: var(--invest-light); }
.info-box.fun { border-color: var(--writing-primary); background: var(--writing-light); }

/* ── Card grid 3-col ── */
.grid-3 { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:1.5rem; }
.grid-2 { display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:1.5rem; }

/* ── Confetti sparkle pulse ── */
@keyframes sparkle { 0%,100%{opacity:1; transform:scale(1);} 50%{opacity:0.6; transform:scale(1.3);} }
.sparkle { animation: sparkle 1.2s ease-in-out infinite; display:inline-block; }