:root {
  --sky: #f8f7f4;
  --coral: #FF6B6B;
  --mint: #6BCB77;
  --blue: #4D96FF;
  --purple: #C77DFF;
  --orange: #FF9F1C;
  --yellow: #FFD93D;
  --dark: #27324a;
  --ink-soft: #7b8298;
  --story-bg: #ffffff;
  --challenge-bg: #ffffff;
  --micro-bg: #ffffff;
  --selective-bg: #ffffff;
  --exam-bg: #ffffff;
  --competition-bg: #ffffff;
  --comment-bg: #ffffff;
  --nav-active: #39c3ad;
  --card-border: #ece8f5;
  --card-shadow: 0 14px 34px rgba(48, 55, 86, 0.08);
}

html {
  font-size: 17px;
}

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

body {
  font-family: 'Nunito', sans-serif;
  background: linear-gradient(180deg, #fffdfa 0%, #f7f6f3 100%);
  min-height: 100vh;
  color: var(--dark);
}

.mini-topbar {
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translate(-50%, -120%);
  width: min(1120px, calc(100vw - 20px));
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 14px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(227, 233, 243, 0.95);
  box-shadow: 0 18px 36px rgba(48, 55, 86, 0.12);
  backdrop-filter: blur(12px);
  transition: transform 0.22s ease, opacity 0.22s ease;
  opacity: 0;
}

body.has-mini-topbar .mini-topbar {
  transform: translate(-50%, 0);
  opacity: 1;
}

.mini-topbar-brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.mini-topbar-logo {
  display: block;
  width: 120px;
  height: auto;
}

.mini-topbar-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.mini-topbar-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 900;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.mini-topbar-link:hover {
  transform: translateY(-2px);
}

.mini-topbar-link-primary {
  background: linear-gradient(135deg, #39c3ad 0%, #48ceb3 100%);
  color: #fff;
  box-shadow: 0 12px 22px rgba(57, 195, 173, 0.22);
}

.mini-topbar-link-secondary {
  background: linear-gradient(135deg, #ffb17a 0%, #ffa06c 100%);
  color: #6c2d10;
  border: 2px solid #4d96ff;
  box-shadow: 0 10px 20px rgba(255, 160, 108, 0.18);
}

.mini-topbar-link-soft {
  background: #fff;
  color: #495a7a;
  border: 1px solid rgba(214, 223, 241, 0.95);
  box-shadow: 0 8px 18px rgba(66, 77, 112, 0.08);
}

header {
  background:
    radial-gradient(circle at 8% 20%, rgba(255, 194, 184, 0.55) 0, rgba(255, 194, 184, 0.55) 140px, transparent 141px),
    radial-gradient(circle at 24% 6%, rgba(191, 243, 234, 0.55) 0, rgba(191, 243, 234, 0.55) 120px, transparent 121px),
    radial-gradient(circle at 60% 12%, rgba(214, 239, 230, 0.65) 0, rgba(214, 239, 230, 0.65) 180px, transparent 181px),
    radial-gradient(circle at 82% 12%, rgba(255, 214, 203, 0.5) 0, rgba(255, 214, 203, 0.5) 150px, transparent 151px),
    radial-gradient(circle at 92% 20%, rgba(220, 213, 250, 0.55) 0, rgba(220, 213, 250, 0.55) 120px, transparent 121px),
    radial-gradient(circle at 18% 100%, rgba(220, 213, 250, 0.5) 0, rgba(220, 213, 250, 0.5) 130px, transparent 131px),
    radial-gradient(circle at 80% 92%, rgba(191, 243, 234, 0.55) 0, rgba(191, 243, 234, 0.55) 110px, transparent 111px),
    linear-gradient(180deg, #fffdfb 0%, #fffdfa 100%);
  padding: 34px 20px 86px;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 62%, rgba(255, 189, 189, 0.3) 0 6px, transparent 7px),
    radial-gradient(circle at 31% 70%, rgba(201, 201, 255, 0.45) 0 22px, transparent 23px),
    radial-gradient(circle at 74% 52%, rgba(201, 201, 255, 0.35) 0 26px, transparent 27px),
    radial-gradient(circle at 86% 72%, rgba(255, 189, 189, 0.4) 0 24px, transparent 25px),
    radial-gradient(circle at 41% 38%, rgba(201, 201, 255, 0.42) 0 30px, transparent 31px);
  pointer-events: none;
}

header::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 66% 24%, rgba(255, 240, 170, 0.42) 0 54px, transparent 55px),
    radial-gradient(circle at 94% 60%, rgba(255, 240, 170, 0.4) 0 28px, transparent 29px),
    radial-gradient(circle at 53% 74%, rgba(255, 212, 203, 0.45) 0 32px, transparent 33px),
    linear-gradient(45deg, transparent 48%, rgba(255, 215, 145, 0.35) 49%, rgba(255, 215, 145, 0.35) 51%, transparent 52%);
  mask:
    radial-gradient(circle at 66% 24%, #000 0 52px, transparent 53px),
    radial-gradient(circle at 94% 60%, #000 0 26px, transparent 27px),
    radial-gradient(circle at 53% 74%, #000 0 30px, transparent 31px),
    none;
  opacity: 0.8;
  pointer-events: none;
}

.star {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.98) 0 18%, rgba(255, 242, 182, 0.96) 19% 54%, rgba(255, 220, 146, 0.22) 55% 100%);
  box-shadow:
    0 0 0 4px rgba(255, 233, 170, 0.08),
    0 0 18px rgba(255, 220, 146, 0.42);
  animation: twinkle 3.4s ease-in-out infinite, starDrift 8.5s ease-in-out infinite;
  pointer-events: none;
}

.star-soft {
  background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.95) 0 18%, rgba(231, 225, 255, 0.92) 19% 54%, rgba(191, 215, 255, 0.18) 55% 100%);
}

.star-warm {
  background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.98) 0 18%, rgba(255, 242, 182, 0.96) 19% 54%, rgba(255, 220, 146, 0.22) 55% 100%);
}

.star-cool {
  background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.96) 0 18%, rgba(182, 242, 255, 0.92) 19% 54%, rgba(156, 221, 255, 0.2) 55% 100%);
}

@keyframes twinkle {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}

@keyframes starDrift {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -8px; }
}

.header-emoji {
  font-size: 76px;
  display: block;
  margin-bottom: 12px;
  position: relative;
  animation: bounce 2s ease-in-out infinite;
}

.hero-shell {
  max-width: 1120px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  align-items: center;
  gap: 18px;
}

.hero-copy-wrap {
  max-width: 620px;
  justify-self: center;
  text-align: left;
}

.hero-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-brand {
  margin-top: 12px;
}

.hero-logo {
  display: block;
  width: min(100%, 430px);
  height: auto;
  filter: drop-shadow(0 16px 24px rgba(43, 52, 96, 0.14));
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 8px 14px;
  border-radius: 999px;
  background: #e8fbf6;
  color: #39c3ad;
  font-size: 0.82rem;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(57, 195, 173, 0.12);
}

.hero-top-menu {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-top-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 14px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 900;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.hero-top-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 26px rgba(76, 82, 116, 0.16);
}

.hero-top-link-primary {
  background: linear-gradient(135deg, #39c3ad 0%, #48ceb3 100%);
  color: #fff;
  box-shadow: 0 12px 22px rgba(57, 195, 173, 0.22);
}

.hero-top-link-secondary {
  background: linear-gradient(135deg, #ffb17a 0%, #ffa06c 100%);
  color: #6c2d10;
  border: 2px solid #4d96ff;
  box-shadow: 0 10px 20px rgba(255, 160, 108, 0.18);
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

header h1 {
  font-family: 'Fredoka One', cursive;
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  color: #27324a;
  position: relative;
  text-shadow: none;
  letter-spacing: 0.4px;
  line-height: 1.03;
}

header p.tagline {
  color: var(--ink-soft);
  font-size: 1.08rem;
  margin-top: 16px;
  position: relative;
  max-width: 580px;
  margin-left: 0;
  margin-right: 0;
  line-height: 1.7;
}

.hero-icon-row {
  display: none;
}

.hero-icon {
  font-size: 2rem;
  animation: floaty 2.8s ease-in-out infinite;
  filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.18));
}

.hero-icon:nth-child(2) { animation-delay: 0.2s; }
.hero-icon:nth-child(3) { animation-delay: 0.4s; }
.hero-icon:nth-child(4) { animation-delay: 0.6s; }
.hero-icon:nth-child(5) { animation-delay: 0.8s; }

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.hero-actions {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: flex-start;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.hero-cta,
.hero-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  border-radius: 999px;
  padding: 14px 24px;
  font-weight: 800;
  min-height: 48px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.hero-cta {
  background: linear-gradient(135deg, #39c3ad 0%, #48ceb3 100%);
  color: #fff;
  box-shadow: 0 12px 22px rgba(57, 195, 173, 0.22);
}

.hero-secondary {
  background: linear-gradient(135deg, #ffb17a 0%, #ffa06c 100%);
  color: #6c2d10;
  border: 2px solid #4d96ff;
  box-shadow: 0 10px 20px rgba(255, 160, 108, 0.18);
}

.hero-cta:hover,
.hero-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 26px rgba(76, 82, 116, 0.16);
}

.hero-art {
  position: relative;
  min-height: 280px;
  isolation: isolate;
}

.hero-orbit {
  position: absolute;
  border-radius: 999px;
  border: 2px dashed rgba(138, 191, 255, 0.28);
  pointer-events: none;
  animation: orbitSpin 24s linear infinite;
}

.hero-orbit-a {
  inset: 16px 30px 30px 12px;
}

.hero-orbit-b {
  inset: 34px 12px 12px 52px;
  animation-duration: 30s;
  animation-direction: reverse;
}

.hero-planet {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  box-shadow: 0 12px 20px rgba(73, 92, 133, 0.12);
  animation: planetFloat 6.2s ease-in-out infinite;
}

.hero-planet::before {
  content: '';
  position: absolute;
  inset: 14% 16% auto auto;
  width: 28%;
  height: 28%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.42);
}

.hero-planet-a {
  left: 24px;
  top: 92px;
  width: 58px;
  height: 58px;
  background: radial-gradient(circle at 32% 30%, #fff1d1 0 20%, #ffd48f 21% 44%, #ffa86c 45% 100%);
}

.hero-planet-b {
  right: 10px;
  top: 18px;
  width: 82px;
  height: 82px;
  background: radial-gradient(circle at 38% 35%, #f0fff7 0 18%, #9fe7d0 19% 55%, #55c7af 56% 100%);
  animation-delay: 0.6s;
}

.hero-planet-c {
  right: 68px;
  bottom: 12px;
  width: 72px;
  height: 72px;
  background: radial-gradient(circle at 34% 32%, #fff1fb 0 18%, #dbc8ff 19% 54%, #b09af6 55% 100%);
  animation-delay: 1.2s;
}

.hero-planet-c::after {
  content: '';
  position: absolute;
  left: -12px;
  right: -12px;
  top: 27px;
  height: 16px;
  border: 3px solid rgba(255, 247, 207, 0.85);
  border-radius: 999px;
  transform: rotate(-18deg);
}

@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes planetFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.03); }
}

.hero-star-shape {
  position: absolute;
  left: 62px;
  top: 12px;
  width: 178px;
  height: 178px;
  background: rgba(255, 235, 146, 0.42);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 93%, 50% 72%, 21% 93%, 32% 57%, 2% 35%, 39% 35%);
  filter: blur(0.2px);
  opacity: 0.95;
  animation: starPulse 5.6s ease-in-out infinite;
}

@keyframes starPulse {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.78; }
  50% { transform: scale(1.08) rotate(8deg); opacity: 1; }
}

.hero-rocket {
  position: absolute;
  right: 20px;
  top: 38px;
  font-size: 7rem;
  transform-origin: center;
  filter: drop-shadow(0 18px 24px rgba(255, 125, 103, 0.24));
  animation: rocketLaunch 4.8s ease-in-out infinite;
  z-index: 2;
}

@keyframes rocketLaunch {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(12deg); }
  25% { transform: translate3d(-10px, -14px, 0) rotate(9deg); }
  60% { transform: translate3d(10px, -28px, 0) rotate(16deg); }
  85% { transform: translate3d(-4px, -12px, 0) rotate(13deg); }
}

.wave {
  display: block;
  width: 100%;
  height: 36px;
  margin-top: -2px;
}

main {
  max-width: 1100px;
  margin: -8px auto 0;
  padding: 34px 20px 70px;
}

.layout-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.side-nav {
  position: sticky;
  top: 20px;
  align-self: start;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 6px;
  scrollbar-width: thin;
  scrollbar-color: rgba(57, 195, 173, 0.55) rgba(232, 236, 244, 0.9);
}

.side-nav::-webkit-scrollbar {
  width: 10px;
}

.side-nav::-webkit-scrollbar-track {
  background: rgba(232, 236, 244, 0.9);
  border-radius: 999px;
}

.side-nav::-webkit-scrollbar-thumb {
  background: rgba(57, 195, 173, 0.55);
  border-radius: 999px;
  border: 2px solid rgba(232, 236, 244, 0.9);
}

.nav-card {
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(10px);
  border-radius: 26px;
  padding: 20px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--card-border);
}

.nav-card + .nav-card {
  margin-top: 16px;
}

.nav-title {
  font-family: 'Fredoka One', cursive;
  font-size: 1.12rem;
  color: var(--dark);
  margin-bottom: 14px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tree-nav {
  padding-top: 2px;
}

.tree-root,
.tree-children {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tree-root {
  display: grid;
  gap: 10px;
}

.tree-node {
  position: relative;
  border: 1px solid #ede8f4;
  border-radius: 18px;
  background: linear-gradient(180deg, #fff 0%, #fdfdfd 100%);
  padding: 8px 10px 10px;
}

.tree-toggle {
  width: 100%;
  border: 0;
  background: transparent;
  color: #45366a;
  font-family: 'Nunito', sans-serif;
  font-size: 0.94rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 6px 10px;
  cursor: pointer;
  text-align: left;
}

.tree-toggle:hover {
  color: #39c3ad;
}

.tree-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tree-label::before {
  content: '▸';
  font-size: 0.8rem;
  color: #83cfc2;
}

.tree-caret {
  font-size: 0.95rem;
  transition: transform 0.18s ease;
}

.tree-node.is-open .tree-caret {
  transform: rotate(180deg);
}

.tree-children {
  position: relative;
  margin-left: 10px;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.tree-children::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, #d8c8fb 0%, #efe7ff 100%);
}

.tree-leaf {
  position: relative;
}

.tree-leaf::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 22px;
  width: 12px;
  height: 2px;
  background: #d8c8fb;
}

.tree-node:not(.is-open) .tree-children {
  display: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #4c576f;
  background: linear-gradient(180deg, #fff 0%, #fdfcfe 100%);
  border: 1px solid #ece8f4;
  border-radius: 999px;
  padding: 11px 14px;
  font-weight: 800;
  min-height: 46px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.nav-link:hover {
  transform: translateY(-2px);
  background: var(--nav-active);
  color: #fff;
  box-shadow: 0 8px 18px rgba(0,0,0,0.08);
}

.nav-link.active {
  background: var(--nav-active);
  color: #fff;
  box-shadow: 0 12px 22px rgba(57, 195, 173, 0.24);
}

.tree-link {
  min-height: 42px;
  padding: 9px 12px;
  font-size: 0.96rem;
}

.nav-emoji {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.nav-copy {
  font-size: 0.9rem;
  color: #7b8a8b;
  line-height: 1.5;
  margin-top: 12px;
}

.content-pane {
  min-width: 0;
}

.search-panel {
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 16px 18px;
  margin-bottom: 14px;
  box-shadow: var(--card-shadow);
}

.search-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Fredoka One', cursive;
  font-size: 1.08rem;
  color: #324266;
  margin-bottom: 10px;
}

.search-label-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 10px;
  background: linear-gradient(135deg, #e6f5ff 0%, #e9fbf5 100%);
  box-shadow: 0 6px 12px rgba(74, 126, 197, 0.12);
  font-size: 0.95rem;
}

.search-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.search-input-wrap {
  position: relative;
}

.search-input-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  opacity: 0.75;
  pointer-events: none;
}

.search-input {
  border: 1px solid #d9dff0;
  border-radius: 14px;
  min-height: 44px;
  width: 100%;
  padding: 10px 14px 10px 40px;
  font: 700 0.95rem 'Nunito', sans-serif;
  color: #2c3550;
  background: #ffffff;
}

.search-input:focus {
  outline: none;
  border-color: #59b7f9;
  box-shadow: 0 0 0 3px rgba(89, 183, 249, 0.18);
}

.search-clear-btn {
  border: none;
  border-radius: 14px;
  min-height: 44px;
  padding: 10px 16px;
  background: #e9f4ff;
  color: #355496;
  font: 800 0.88rem 'Nunito', sans-serif;
  cursor: pointer;
  white-space: nowrap;
}

.search-clear-btn:hover {
  background: #dcedff;
}

.search-status {
  margin-top: 10px;
  font-size: 0.92rem;
  color: #6d7896;
  line-height: 1.5;
}

.is-search-hidden {
  display: none !important;
}

body.search-active .story-subsection {
  display: none !important;
}

.hero-panel {
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 28px;
  padding: 24px;
  margin-bottom: 28px;
  box-shadow: var(--card-shadow);
}

.hero-panel h2 {
  font-family: 'Fredoka One', cursive;
  font-size: 1.5rem;
  color: var(--dark);
  margin-bottom: 10px;
}

.hero-panel p {
  color: var(--ink-soft);
  line-height: 1.7;
  font-size: 1.05rem;
}

.support-panel {
  background: linear-gradient(135deg, #fbfffd 0%, #f8fbff 52%, #fffbf2 100%);
  border: 1px solid var(--card-border);
  border-radius: 28px;
  padding: 22px;
  margin-bottom: 28px;
  box-shadow: var(--card-shadow);
}

.support-panel-copy h2 {
  font-family: 'Fredoka One', cursive;
  font-size: 1.42rem;
  color: var(--dark);
  margin-bottom: 10px;
}

.support-panel-copy p {
  color: var(--ink-soft);
  line-height: 1.7;
  font-size: 1rem;
}

.support-toggle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.hero-stat {
  border: 1px solid transparent;
  border-radius: 18px;
  padding: 14px;
  text-align: center;
}

.hero-stat:nth-child(1) {
  background: #eaf8f5;
  color: #39c3ad;
}

.hero-stat:nth-child(2) {
  background: #fff0ea;
  color: #ff9274;
}

.hero-stat:nth-child(3) {
  background: #efe9fb;
  color: #a987da;
}

.hero-stat:nth-child(4) {
  background: #edf8f4;
  color: #61c7b3;
}

.hero-stat strong {
  display: block;
  font-family: 'Fredoka One', cursive;
  font-size: 1.25rem;
  color: currentColor;
  margin-bottom: 4px;
}

.hero-stat span {
  font-size: 0.84rem;
  color: currentColor;
  opacity: 0.82;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.section-block {
  scroll-margin-top: 22px;
  margin-bottom: 22px;
  border-radius: 30px;
  padding: 28px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
}

.section-intro {
  color: var(--ink-soft);
  font-size: 1rem;
  margin-bottom: 12px;
  line-height: 1.6;
}

.section-meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.section-pill {
  background: rgba(255,255,255,0.78);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.84rem;
  font-weight: 800;
  color: #5b5563;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-story { background: linear-gradient(180deg, #ffffff 0%, #fffefd 100%); }
.section-challenge { background: linear-gradient(180deg, #ffffff 0%, #fffdfd 100%); }
.section-exams { background: linear-gradient(180deg, #ffffff 0%, #fffdfd 100%); }
.section-micro { background: linear-gradient(180deg, #ffffff 0%, #fffdfd 100%); }
.section-selective { background: linear-gradient(180deg, #ffffff 0%, #fffdfd 100%); }
.section-competition { background: linear-gradient(180deg, #ffffff 0%, #fffef8 100%); }
.section-comments { background: linear-gradient(180deg, #ffffff 0%, #fffdfd 100%); }
.section-games { background: linear-gradient(180deg, #ffffff 0%, #fefcff 100%); }
.section-focus { background: linear-gradient(180deg, #ffffff 0%, #fcfffb 100%); }

.comment-shell {
  background: #fff;
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--card-border);
}

.comment-grid {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.comment-panel {
  background: rgba(255,255,255,0.8);
  border: 1px solid #ece8f4;
  border-radius: 20px;
  padding: 18px;
}

.comment-panel h3 {
  font-family: 'Fredoka One', cursive;
  font-size: 1.15rem;
  color: var(--dark);
  margin-bottom: 10px;
}

.comment-help {
  color: #667071;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 14px;
}

.comment-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comment-type {
  border: 0;
  margin: 0;
  padding: 0;
}

.comment-type legend {
  font-size: 0.8rem;
  font-weight: 800;
  color: #6f4bc7;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 8px;
}

.comment-type-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.comment-type-option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 2px solid #ece8f4;
  background: linear-gradient(180deg, #fff 0%, #fdfcfe 100%);
  cursor: pointer;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.comment-type-option:hover {
  transform: translateY(-1px);
  border-color: #9fddd2;
  box-shadow: 0 10px 18px rgba(57,195,173,0.08);
}

.comment-type-option input {
  margin-top: 2px;
  accent-color: #5b2fb3;
  flex-shrink: 0;
}

.comment-type-copy strong {
  display: block;
  font-size: 0.95rem;
  color: var(--dark);
  margin-bottom: 3px;
}

.comment-type-copy span {
  display: block;
  font-size: 0.85rem;
  color: #667071;
  line-height: 1.45;
}

.comment-form label {
  font-size: 0.8rem;
  font-weight: 800;
  color: #6f4bc7;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.comment-input,
.comment-textarea {
  width: 100%;
  border: 2px solid #d8c8fb;
  border-radius: 14px;
  padding: 12px 14px;
  font-family: 'Nunito', sans-serif;
  font-size: 0.95rem;
  color: var(--dark);
  background: #fff;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.comment-input:focus,
.comment-textarea:focus {
  border-color: #39c3ad;
  box-shadow: 0 0 0 4px rgba(57,195,173,0.12);
}

.comment-textarea {
  min-height: 120px;
  resize: vertical;
}

.captcha-box {
  background: #fff;
  border: 2px dashed #dabef8;
  border-radius: 16px;
  padding: 14px;
}

.captcha-question {
  font-family: 'Fredoka One', cursive;
  color: #7c3aed;
  font-size: 1rem;
  margin-bottom: 8px;
}

.captcha-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.comment-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.comment-submit,
.comment-refresh {
  border: none;
  border-radius: 18px;
  padding: 10px 18px;
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.comment-submit {
  background: linear-gradient(135deg, #39c3ad 0%, #48ceb3 100%);
  color: #fff;
  min-height: 48px;
  padding-inline: 22px;
}

.comment-refresh {
  background: #fff;
  color: var(--dark);
  border: 2px solid #ece3dc;
}

.comment-submit:hover,
.comment-refresh:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
}

.comment-status {
  min-height: 22px;
  font-size: 0.88rem;
  font-weight: 800;
}

.comment-status.error {
  color: #c62828;
}

.comment-status.success {
  color: #2e7d32;
}

.comment-note {
  font-size: 0.82rem;
  color: #6b7280;
  line-height: 1.5;
  margin-top: -4px;
}

.comment-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.comment-empty {
  background: #f8fbff;
  border: 1px dashed #cfe0fb;
  color: #6f7d8a;
  border-radius: 18px;
  padding: 18px;
  line-height: 1.6;
}

.comment-card {
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 16px;
  box-shadow: 0 8px 22px rgba(0,0,0,0.04);
}

.comment-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.comment-author {
  font-family: 'Fredoka One', cursive;
  font-size: 1rem;
  color: var(--dark);
}

.comment-time {
  font-size: 0.8rem;
  color: #8c9899;
  font-weight: 700;
}

.comment-body {
  color: #586566;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.section-title {
  font-family: 'Fredoka One', cursive;
  font-size: 2rem;
  color: var(--dark);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 78px;
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, #9fded2, #ffbf9c);
  position: absolute;
  left: 0;
  bottom: -12px;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.story-subsection {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border-radius: 24px;
  background: linear-gradient(135deg, #eef7ff 0%, #fff8e5 100%);
  border: 1px solid #e7def7;
  box-shadow: 0 10px 22px rgba(66, 77, 112, 0.07);
  scroll-margin-top: 24px;
}

.story-subsection-icon {
  width: 72px;
  height: 72px;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  background: linear-gradient(135deg, #4d96ff 0%, #ffd93d 100%);
  box-shadow: 0 8px 18px rgba(77, 150, 255, 0.16);
}

.story-subsection h3 {
  margin: 0 0 6px;
  font-family: 'Fredoka One', cursive;
  font-size: 1.4rem;
  color: #2e436f;
}

.story-subsection p {
  margin: 0;
  color: #66748f;
  line-height: 1.7;
  font-weight: 700;
}

.story-subsection-math {
  background: linear-gradient(135deg, #eef7ff 0%, #fff8e5 100%);
}

.story-subsection-stories {
  background: linear-gradient(135deg, #eef5ff 0%, #fff2de 55%, #fff8ef 100%);
}

.story-subsection-stories .story-subsection-icon {
  background: linear-gradient(135deg, #4d96ff 0%, #ffd166 100%);
}

.story-subsection-math .story-subsection-icon {
  background: linear-gradient(135deg, #4d96ff 0%, #ffd93d 100%);
}

.story-subsection-addition {
  background: linear-gradient(135deg, #eff8ff 0%, #fff1da 100%);
}

.story-subsection-addition .story-subsection-icon {
  background: linear-gradient(135deg, #6bb8ff 0%, #ffb347 100%);
}

.story-subsection-multiply {
  background: linear-gradient(135deg, #eefdf4 0%, #fff6dc 100%);
}

.story-subsection-multiply .story-subsection-icon {
  background: linear-gradient(135deg, #49b97f 0%, #ffd257 100%);
}

.story-subsection-science {
  background: linear-gradient(135deg, #eefaff 0%, #eef7ff 55%, #f4efff 100%);
}

.story-subsection-science .story-subsection-icon {
  background: linear-gradient(135deg, #1e3a5f 0%, #4d96ff 100%);
  color: #fffef5;
}

.story-subsection-history {
  background: linear-gradient(135deg, #fff7e7 0%, #fff2d8 55%, #f9f1ff 100%);
}

.story-subsection-history .story-subsection-icon {
  background: linear-gradient(135deg, #ffb347 0%, #c77dff 100%);
}

.story-card {
  background: #fff;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(46, 57, 90, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--card-border);
  position: relative;
}

.story-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 38px rgba(46, 57, 90, 0.14);
}

.story-card-soon {
  cursor: default;
}

.story-card-soon:hover {
  transform: none;
  box-shadow: 0 12px 28px rgba(46, 57, 90, 0.08);
}

.story-card-soon .read-btn {
  background: linear-gradient(135deg, #d6e4de 0%, #c7d4ce 100%);
  color: #51615b;
}

.card-cover {
  height: 176px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 58px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.card-cover .badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255,255,255,0.92);
  color: #43344f;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
}

.card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-number {
  font-size: 0.8rem;
  font-weight: 800;
  color: #39c3ad;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  margin-bottom: 6px;
  display: inline-flex;
  align-self: flex-start;
  background: #eaf8f5;
  padding: 5px 10px;
  border-radius: 999px;
}

.competition-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  margin-bottom: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.competition-status.is-pending {
  background: #f5f6fb;
  color: #66748f;
}

.competition-status.is-active {
  background: #e9fbef;
  color: #1e7a37;
}

.competition-status.is-upcoming {
  background: #eef5ff;
  color: #1858b8;
}

.competition-status.is-expired {
  background: #fff1f1;
  color: #b33636;
}

.card-title {
  font-family: 'Fredoka One', cursive;
  font-size: 1.3rem;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.3;
}

.card-desc {
  font-size: 0.98rem;
  color: #475569;
  line-height: 1.65;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.tag {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tag-math { background: #e8f5e9; color: #2e7d32; }
.tag-story { background: #e3f2fd; color: #1565c0; }
.tag-age { background: #fff3e0; color: #e65100; }
.tag-science { background: #ede7f6; color: #4527a0; }
.tag-challenge { background: #fce4ec; color: #c62828; }
.tag-reading { background: #e8eaf6; color: #283593; }
.tag-writing { background: #f3e5f5; color: #6a1b9a; }
.tag-spelling { background: #e0f7fa; color: #00695c; }
.tag-numeracy { background: #fff8e1; color: #f57f17; }
.tag-game { background: #ede9fe; color: #5b21b6; }
.tag-focus { background: #e7faf3; color: #1c7a62; }

.section-divider {
  border: none;
  height: 8px;
  background: linear-gradient(90deg, transparent, rgba(159, 222, 210, 0.38), rgba(255, 191, 156, 0.4), transparent);
  margin: 0 0 28px;
  border-radius: 2px;
}

.card-footer {
  padding: 16px 20px 18px;
  border-top: 1px solid #f2edf6;
  display: grid;
  gap: 12px;
}

.read-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(135deg, #39c3ad 0%, #48ceb3 100%);
  color: #fff;
  font-family: 'Fredoka One', cursive;
  font-weight: 800;
  font-size: 0.92rem;
  padding: 12px 18px;
  border-radius: 16px;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.18s ease;
  width: 100%;
  min-height: 46px;
}

.read-btn:hover {
  background: linear-gradient(135deg, #30b39e 0%, #40c7ac 100%);
  transform: translateY(-1px);
}

.topic-helper {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  max-width: min(92vw, 430px);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: end;
}

.topic-helper.is-minimized {
  grid-template-columns: auto auto;
  max-width: none;
}

.topic-helper-character {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #fff6d6 0%, #ffe7a3 100%);
  border: 1px solid #f3d88a;
  box-shadow: 0 8px 18px rgba(66, 77, 112, 0.18);
  font-size: 1.9rem;
  animation: topicHelperBob 2.8s ease-in-out infinite;
  cursor: pointer;
}

@keyframes topicHelperBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.topic-helper-panel {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid #e6dff3;
  border-radius: 18px;
  padding: 12px;
  box-shadow: 0 14px 28px rgba(66, 77, 112, 0.16);
  backdrop-filter: blur(8px);
}

.topic-helper.is-minimized .topic-helper-panel {
  display: none;
}

.topic-helper-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.topic-helper-title {
  font-family: 'Fredoka One', cursive;
  font-size: 1rem;
  color: #2f3f66;
  margin-bottom: 4px;
}

.topic-helper-copy {
  font-size: 0.84rem;
  line-height: 1.45;
  color: #677695;
  margin-bottom: 10px;
}

.topic-helper-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.topic-helper-input {
  width: 100%;
  min-height: 40px;
  border: 1px solid #d9dff0;
  border-radius: 12px;
  padding: 9px 11px;
  font: 700 0.88rem 'Nunito', sans-serif;
  color: #2c3550;
  background: #fff;
}

.topic-helper-input:focus {
  outline: none;
  border-color: #59b7f9;
  box-shadow: 0 0 0 3px rgba(89, 183, 249, 0.18);
}

.topic-helper-btn {
  border: none;
  min-height: 40px;
  border-radius: 12px;
  padding: 9px 13px;
  background: linear-gradient(135deg, #39c3ad 0%, #48ceb3 100%);
  color: #fff;
  font: 900 0.86rem 'Nunito', sans-serif;
  cursor: pointer;
  white-space: nowrap;
}

.topic-helper-btn:hover {
  filter: brightness(0.97);
}

.topic-helper-icon-btn {
  border: 1px solid #d9dff0;
  background: #fff;
  color: #58698b;
  min-width: 36px;
  min-height: 36px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: 900 1rem 'Nunito', sans-serif;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(66, 77, 112, 0.1);
}

.topic-helper-icon-btn:hover {
  background: #f7fbff;
}

.topic-helper-mini {
  display: none;
  align-items: center;
  gap: 8px;
}

.topic-helper.is-minimized .topic-helper-mini {
  display: inline-flex;
}

.topic-helper-mini-btn {
  min-height: 44px;
  padding-inline: 14px;
}

.pages-info {
  font-size: 0.88rem;
  color: #7a7a89;
  font-weight: 800;
}

footer {
  background: linear-gradient(180deg, #1f1140 0%, #140a2c 100%);
  color: rgba(255,255,255,0.8);
  padding: 44px 20px 28px;
  margin-top: 36px;
}

.footer-shell {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr .9fr .9fr;
  gap: 22px;
  align-items: start;
}

.footer-title {
  font-family: 'Fredoka One', cursive;
  font-size: 1.5rem;
  color: #fff6d8;
  margin-bottom: 10px;
}

.footer-copy {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.76);
}

.footer-links,
.footer-trust {
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: rgba(255,255,255,0.88);
  text-decoration: none;
  font-weight: 800;
}

.footer-links a:hover {
  color: #fff6d8;
}

.footer-rss-link {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff6d8;
  text-decoration: none;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(0,0,0,0.16);
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.footer-rss-link:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.22);
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  padding: 9px 12px;
  font-weight: 800;
}

.share-box {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.share-url {
  flex: 1;
  min-width: 220px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  color: #fff;
  padding: 12px 14px;
  font-family: 'Nunito', sans-serif;
}

.share-btn {
  border: none;
  border-radius: 14px;
  background: #fff6d8;
  color: #4c1d95;
  padding: 12px 18px;
  font-weight: 900;
  cursor: pointer;
  min-height: 46px;
}

.footer-tagline {
  text-align: center;
  margin-top: 26px;
  color: rgba(255,255,255,0.72);
  font-size: 0.95rem;
}

footer span { color: var(--coral); }

@media (max-width: 980px) {
  .mini-topbar {
    padding: 10px 12px;
  }

  .mini-topbar-logo {
    width: 104px;
  }

  .mini-topbar-links {
    justify-content: flex-start;
  }

  .hero-shell {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .hero-copy-wrap {
    max-width: 680px;
    text-align: center;
  }

  .hero-topbar {
    justify-content: center;
  }

  .hero-brand {
    display: flex;
    justify-content: center;
  }

  .hero-logo {
    width: min(100%, 380px);
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-art {
    min-height: 220px;
    width: min(360px, 76vw);
    margin: 0 auto;
  }

  .hero-orbit-a {
    inset: 20px 28px 26px 18px;
  }

  .hero-orbit-b {
    inset: 42px 18px 16px 50px;
  }

  .hero-star-shape {
    left: 44px;
    top: 18px;
    width: 150px;
    height: 150px;
  }

  .hero-rocket {
    top: 34px;
    right: 6px;
    font-size: 5.6rem;
  }

  .hero-planet-a {
    left: 14px;
    top: 104px;
    width: 50px;
    height: 50px;
  }

  .hero-planet-b {
    width: 68px;
    height: 68px;
  }

  .hero-planet-c {
    right: 54px;
    width: 60px;
    height: 60px;
  }

  .layout-shell {
    grid-template-columns: 1fr;
  }

  .side-nav {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

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

  .support-toggle-grid {
    grid-template-columns: 1fr;
  }

  .search-controls {
    grid-template-columns: 1fr;
  }

  .comment-grid {
    grid-template-columns: 1fr;
  }

  .comment-type-grid {
    grid-template-columns: 1fr;
  }

  .footer-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .mini-topbar {
    top: 8px;
    width: calc(100vw - 16px);
    padding: 8px 10px;
    border-radius: 18px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    justify-content: initial;
    gap: 8px;
    align-items: center;
  }

  .mini-topbar-brand {
    justify-content: flex-start;
  }

  .mini-topbar-logo {
    width: 72px;
  }

  .mini-topbar-links {
    min-width: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    justify-content: flex-start;
    padding-bottom: 2px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .mini-topbar-links::-webkit-scrollbar {
    display: none;
  }

  .mini-topbar-link {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 7px 10px;
    font-size: 0.74rem;
    white-space: nowrap;
    box-shadow: none;
  }
}

@media (max-width: 500px) {
  html {
    font-size: 16px;
  }

  .mini-topbar {
    gap: 6px;
    padding: 7px 8px;
  }

  .mini-topbar-logo {
    width: 64px;
  }

  .mini-topbar-link {
    min-height: 32px;
    padding: 6px 9px;
    font-size: 0.7rem;
  }

  header {
    padding-top: 24px;
    padding-bottom: 62px;
  }

  .hero-badge {
    font-size: 0.74rem;
  }

  .hero-topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-top-menu {
    width: 100%;
  }

  .hero-top-link {
    flex: 1 1 140px;
    width: 100%;
  }

  .hero-logo {
    width: min(100%, 300px);
  }

  header p.tagline {
    font-size: 0.98rem;
  }

  .story-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .section-block { padding: 22px 18px; }
  .hero-actions { flex-direction: column; }
  .hero-cta, .hero-secondary { width: 100%; }

  .hero-art {
    min-height: 180px;
    width: min(300px, 82vw);
  }

  .hero-orbit-a {
    inset: 22px 18px 28px 16px;
  }

  .hero-orbit-b {
    inset: 42px 8px 16px 48px;
  }

  .hero-star-shape {
    left: 34px;
    top: 24px;
    width: 118px;
    height: 118px;
  }

  .hero-rocket {
    top: 42px;
    right: 2px;
    font-size: 4.4rem;
  }

  .hero-planet-a {
    left: 12px;
    top: 100px;
    width: 42px;
    height: 42px;
  }

  .hero-planet-b {
    top: 20px;
    right: 10px;
    width: 54px;
    height: 54px;
  }

  .hero-planet-c {
    right: 44px;
    bottom: 14px;
    width: 48px;
    height: 48px;
  }

  .captcha-row {
    flex-direction: column;
    align-items: stretch;
  }

  .topic-helper {
    right: 10px;
    left: 10px;
    bottom: 10px;
    max-width: none;
    grid-template-columns: 50px minmax(0, 1fr);
    gap: 8px;
  }

  .topic-helper.is-minimized {
    left: auto;
    grid-template-columns: 50px auto;
  }

  .topic-helper-character {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    font-size: 1.5rem;
  }

  .topic-helper-panel {
    padding: 10px;
  }

  .topic-helper-row {
    grid-template-columns: 1fr;
  }

  .topic-helper-btn {
    width: 100%;
  }

  .topic-helper.is-minimized .topic-helper-mini {
    flex-direction: column;
    align-items: stretch;
  }

  .topic-helper.is-minimized .topic-helper-mini-btn {
    width: 100%;
  }
}