/* Avenue Library Code Club (alcode.club) — fun, kid-friendly design system */

:root {
  --blue: #3d5afe;
  --blue-dark: #1a237e;
  --blue-light: #e8eeff;
  --pink: #ff6b9d;
  --pink-dark: #ff4081;
  --yellow: #ffe066;
  --yellow-dark: #f5c518;
  --green: #4ade80;
  --green-dark: #22c55e;
  --mint: #a7f3d0;
  --coral: #ff8a65;
  --purple: #a78bfa;
  --white: #ffffff;
  --ink: #1e293b;
  --ink-muted: #64748b;
  --bg: #fef9f3;
  --card: #ffffff;
  --radius: 1.25rem;
  --radius-lg: 2rem;
  --shadow: 0 8px 32px rgba(26, 35, 126, 0.12);
  --shadow-hover: 0 16px 48px rgba(26, 35, 126, 0.18);
  --font-display: "Fredoka", system-ui, sans-serif;
  --font-body: "Nunito", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
}

/* Decorative background blobs */
body::before,
body::after {
  content: "";
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.35;
}

body::before {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, var(--yellow) 0%, transparent 70%);
  top: -120px;
  right: -80px;
}

body::after {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--mint) 0%, transparent 70%);
  bottom: -100px;
  left: -60px;
}

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

a {
  color: var(--blue);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

a:hover {
  color: var(--pink-dark);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  margin-top: 0;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

p { margin: 0 0 1rem; }

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(254, 249, 243, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 3px dashed var(--blue-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}

.logo-image {
  display: block;
  height: 58px;
  width: auto;
  max-width: min(265px, 60vw);
}

.nav-toggle {
  display: none;
  background: var(--yellow);
  border: 3px solid var(--ink);
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
  font-size: 1.25rem;
  cursor: pointer;
}

.main-nav ul {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: block;
  padding: 0.5rem 1rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  color: var(--ink);
  border-radius: 999px;
  transition: background 0.2s, transform 0.2s;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  background: var(--yellow);
  color: var(--ink);
  transform: translateY(-2px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-3px) scale(1.02);
}

.btn-primary {
  background: linear-gradient(135deg, var(--pink), var(--coral));
  color: var(--white);
  box-shadow: 0 6px 0 var(--pink-dark);
}

.btn-primary:hover {
  color: var(--white);
  box-shadow: 0 10px 0 var(--pink-dark);
}

.btn-secondary {
  background: var(--white);
  color: var(--blue-dark);
  border: 3px solid var(--blue);
  box-shadow: 0 4px 0 var(--blue);
}

.btn-secondary:hover {
  color: var(--blue-dark);
  background: var(--blue-light);
}

/* Hero */
.hero {
  padding: 3rem 0 4rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: var(--mint);
  color: var(--green-dark);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  border: 2px solid var(--green);
}

.hero h1 {
  margin-bottom: 1rem;
}

.hero h1 .highlight {
  background: linear-gradient(90deg, var(--blue), var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--ink-muted);
  margin-bottom: 1.5rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-mascot {
  position: relative;
  text-align: center;
}

.hero-mascot img {
  width: min(320px, 90%);
  margin-inline: auto;
  animation: float 4s ease-in-out infinite;
  filter: drop-shadow(0 20px 40px rgba(61, 90, 254, 0.25));
}

.mascot-speech {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--white);
  border: 3px solid var(--ink);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  max-width: 180px;
  box-shadow: var(--shadow);
  animation: wiggle 3s ease-in-out infinite;
}

.mascot-speech::after {
  content: "";
  position: absolute;
  bottom: -12px;
  left: 24px;
  border: 10px solid transparent;
  border-top-color: var(--ink);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes wiggle {
  0%, 100% { transform: rotate(-2deg); }
  50% { transform: rotate(2deg); }
}

/* Floating code symbols */
.code-rain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.code-rain span {
  position: absolute;
  font-family: var(--font-mono);
  font-weight: 700;
  opacity: 0.15;
  animation: fall linear infinite;
}

@keyframes fall {
  0% { transform: translateY(-20px) rotate(0deg); opacity: 0; }
  10% { opacity: 0.2; }
  90% { opacity: 0.2; }
  100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section-header p {
  color: var(--ink-muted);
  font-size: 1.15rem;
}

.section-alt {
  background: linear-gradient(180deg, var(--blue-light) 0%, transparent 100%);
  border-radius: var(--radius-lg);
  margin: 0 4vw;
  padding-inline: 2rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 3px solid transparent;
  box-shadow: var(--shadow);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.card-icon.scratch { background: #ffab00; }
.card-icon.html { background: #ff6b35; color: white; }
.card-icon.python { background: #3776ab; color: white; }
.card-icon.friends { background: var(--pink); }

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--ink-muted);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.card-link {
  font-family: var(--font-display);
  font-weight: 600;
  text-decoration: none;
}

/* Date cards */
.dates-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 720px;
  margin: 0 auto;
}

.date-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.25rem;
  align-items: center;
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  border-left: 6px solid var(--blue);
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.date-card:hover {
  transform: translateX(6px);
}

.date-card.next {
  border-left-color: var(--pink);
  background: linear-gradient(90deg, #fff5f8 0%, var(--card) 30%);
}

.date-card.past {
  opacity: 0.65;
  border-left-color: var(--ink-muted);
}

.date-badge {
  text-align: center;
  min-width: 72px;
}

.date-badge .day {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue);
  line-height: 1;
}

.date-badge .month {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--pink-dark);
  letter-spacing: 0.05em;
}

.date-info h3 {
  margin-bottom: 0.25rem;
  font-size: 1.2rem;
}

.date-info p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.date-tag {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  white-space: nowrap;
}

.date-tag.upcoming {
  background: var(--mint);
  color: var(--green-dark);
}

.date-tag.next-session {
  background: var(--pink);
  color: white;
}

.date-tag.past {
  background: #e2e8f0;
  color: var(--ink-muted);
}

/* Why code */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.why-item {
  text-align: center;
  padding: 1.5rem;
}

.why-emoji {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.75rem;
}

.why-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.why-item p {
  font-size: 0.95rem;
  color: var(--ink-muted);
  margin: 0;
}

/* Partner banner */
.partner-strip {
  background: var(--white);
  border: 3px dashed var(--purple);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.partner-strip p {
  margin: 0;
  flex: 1;
  min-width: 200px;
}

/* Page hero (inner pages) */
.page-hero {
  padding: 2.5rem 0 2rem;
  text-align: center;
}

.page-hero .mascot-mini {
  width: 120px;
  margin: 0 auto 1rem;
}

.page-hero p {
  color: var(--ink-muted);
  font-size: 1.2rem;
  max-width: 560px;
  margin-inline: auto;
}

/* Info boxes */
.info-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.info-box.highlight {
  border: 3px solid var(--yellow);
  background: linear-gradient(135deg, #fffbeb 0%, var(--white) 50%);
}

.info-box h3 {
  margin-bottom: 0.75rem;
}

.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.info-list li {
  padding: 0.5rem 0 0.5rem 2rem;
  position: relative;
}

.info-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green-dark);
  font-weight: 700;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

/* Footer */
.site-footer {
  background: var(--blue-dark);
  color: rgba(255, 255, 255, 0.92);
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.site-footer h4 {
  color: var(--yellow);
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.site-footer a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer a:hover {
  color: var(--yellow);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  color: #fff;
}

/* Sticker decorations */
.sticker {
  display: inline-block;
  transform: rotate(-3deg);
  background: var(--yellow);
  border: 2px solid var(--ink);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .two-col,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-mascot {
    order: -1;
  }

  .mascot-speech {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
  }

  .date-card {
    grid-template-columns: auto 1fr;
  }

  .date-tag {
    grid-column: 1 / -1;
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 3px dashed var(--blue-light);
    padding: 1rem;
    display: none;
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
  }

  .section-alt {
    margin: 0;
    border-radius: 0;
  }
}

/* Blog & articles */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
  border: 3px solid transparent;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--purple);
  color: inherit;
}

.blog-card time {
  font-size: 0.85rem;
  color: var(--pink-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.blog-card h3 {
  margin: 0.5rem 0;
  font-size: 1.2rem;
}

.blog-card p {
  color: var(--ink-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* Blog post & long-form article layout */
article.article > .container,
.container.article {
  max-width: 42rem;
  width: 100%;
  margin-inline: auto;
}

.article-header {
  text-align: center;
  margin-bottom: 2rem;
}

.article-header h1 {
  max-width: 36rem;
  margin-inline: auto;
}

.article-header time {
  display: block;
  color: var(--pink-dark);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.article-body h2 {
  margin-top: 2rem;
}

.article-body h3 {
  margin-top: 1.5rem;
}

.article-body p:has(> a[href*="blog.html"]) {
  text-align: center;
  margin-top: 2.5rem;
}

.faq-list details {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--purple);
}

.faq-list summary {
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list details[open] summary {
  margin-bottom: 0.75rem;
  color: var(--blue-dark);
}

.faq-list details p {
  margin: 0;
  color: var(--ink-muted);
}

.project-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1rem;
  border-left: 6px solid var(--coral);
  box-shadow: var(--shadow);
}

.project-card h3 {
  margin-bottom: 0.5rem;
}