:root {
  --bg: #071017;
  --surface: rgba(11, 28, 39, 0.82);
  --surface-strong: rgba(14, 38, 53, 0.96);
  --text: #eef8fb;
  --muted: #a9c2c9;
  --accent: #56f0c8;
  --accent-2: #49a6ff;
  --warning: #ffd166;
  --danger: #ff7a7a;
  --good: #72f5a9;
  --border: rgba(255,255,255,.12);
  --shadow: 0 24px 80px rgba(0,0,0,.35);
  --radius: 24px;
  --max: 1120px;
}

[data-theme="light"] {
  --bg: #eef8f4;
  --surface: rgba(255,255,255,0.86);
  --surface-strong: rgba(255,255,255,0.97);
  --text: #0b1d24;
  --muted: #486269;
  --accent: #0c9b77;
  --accent-2: #1769e0;
  --warning: #9b6500;
  --danger: #a51d1d;
  --good: #0e7c4f;
  --border: rgba(7, 32, 44, .13);
  --shadow: 0 24px 80px rgba(7, 32, 44, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 15% 10%, rgba(73,166,255,.18), transparent 34%),
              radial-gradient(circle at 85% 15%, rgba(86,240,200,.16), transparent 28%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: inherit; }
.background-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .55;
  background-image:
    radial-gradient(circle, rgba(86,240,200,.5) 0 2px, transparent 2.5px),
    radial-gradient(circle, rgba(73,166,255,.4) 0 1.5px, transparent 2px);
  background-size: 92px 92px, 145px 145px;
  background-position: 0 0, 35px 60px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.85), transparent 85%);
}
.site-header {
  width: min(var(--max), calc(100% - 32px));
  margin: 18px auto 0;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px;
  position: sticky;
  top: 12px;
  z-index: 10;
  background: color-mix(in srgb, var(--surface-strong), transparent 8%);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -.02em;
  white-space: nowrap;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061217;
  font-weight: 900;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-left: auto;
}
.main-nav a,
.theme-toggle,
.menu-toggle {
  border: 0;
  color: var(--text);
  text-decoration: none;
  background: transparent;
  padding: 10px 12px;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
}
.main-nav a:hover,
.main-nav a.active,
.theme-toggle:hover,
.menu-toggle:hover { background: rgba(127, 197, 202, .16); }
.theme-toggle { border: 1px solid var(--border); white-space: nowrap; }
.menu-toggle { display: none; }
main { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.hero { min-height: 74vh; display: grid; align-items: center; padding: 78px 0 52px; }
.split { grid-template-columns: 1.08fr .92fr; gap: 46px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-weight: 800; text-transform: uppercase; font-size: .82rem; letter-spacing: .14em; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(3.2rem, 8vw, 6.8rem); line-height: .9; letter-spacing: -.07em; margin-bottom: 24px; }
h2 { font-size: clamp(1.35rem, 2.4vw, 2rem); letter-spacing: -.035em; line-height: 1.1; }
h3 { font-size: 1.1rem; margin-bottom: 8px; }
.lede { font-size: clamp(1.1rem, 2vw, 1.35rem); color: var(--muted); max-width: 760px; }
.narrow { max-width: 780px; margin-inline: auto; }
.byline {
  display: inline-flex;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-weight: 800;
  color: var(--accent);
}
.hero-actions, .banner { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 800;
  cursor: pointer;
}
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #031014; border-color: transparent; }
.btn.secondary { background: var(--surface); }
.text-link, .source-link { color: var(--accent); font-weight: 850; text-decoration: none; }
.text-link:hover, .source-link:hover { text-decoration: underline; }
.hero-visual {
  min-height: 470px;
  position: relative;
  border: 1px solid var(--border);
  border-radius: 36px;
  background:
    radial-gradient(circle at 30% 25%, rgba(86,240,200,.3), transparent 24%),
    radial-gradient(circle at 70% 70%, rgba(73,166,255,.24), transparent 28%),
    var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.orb { position: absolute; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); filter: blur(.2px); opacity: .9; animation: float 7s ease-in-out infinite; }
.orb-one { width: 135px; height: 135px; top: 64px; left: 58px; }
.orb-two { width: 78px; height: 78px; bottom: 92px; right: 80px; animation-delay: -2s; }
.orb-three { width: 46px; height: 46px; top: 126px; right: 116px; animation-delay: -4s; }
.plastic-card { position: absolute; left: 52px; bottom: 62px; max-width: 285px; padding: 20px; border-radius: 22px; border: 1px solid var(--border); background: color-mix(in srgb, var(--surface-strong), transparent 5%); box-shadow: var(--shadow); }
.plastic-card.ghost { left: auto; right: 42px; top: 56px; bottom: auto; }
.card-label { color: var(--accent); font-size: .78rem; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.plastic-card strong { display: block; margin: 8px 0 4px; font-size: 1.28rem; }
.plastic-card small { color: var(--muted); }
.content-grid { display: grid; gap: 18px; margin: 32px 0; }
.content-grid.two { grid-template-columns: repeat(2, 1fr); }
.content-grid.three { grid-template-columns: repeat(3, 1fr); }
.info-card, .callout, .banner, .timeline, .testimonial, .pledge-card, .source-card, .photo-card, .action-card, .action-tool-card, .action-detail-point, .impact-card, .stat-card, .campaign-map, .play-panel, .mission-card, .quiz-panel, .quiz-question {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.info-card { padding: 24px; }
.info-card p, .action-card p, .impact-card p, .source-card p, .callout p, .banner p, .campaign-map p, .mission-card p { color: var(--muted); }
.banner { padding: 30px; margin: 46px 0 72px; justify-content: space-between; }
.banner div { max-width: 700px; }
.campaign-map { display: grid; grid-template-columns: 1fr auto; gap: 22px; align-items: center; padding: 30px; margin: 28px 0; }
.mini-steps { display: grid; gap: 10px; min-width: 210px; }
.mini-steps span { padding: 12px 16px; border-radius: 999px; background: rgba(127, 197, 202, .12); border: 1px solid var(--border); font-weight: 850; }
.page-hero { text-align: center; padding: 88px 0 32px; }
.page-hero h1 { font-size: clamp(2.7rem, 6vw, 5.3rem); }
.timeline { padding: 28px; margin: 38px 0; }
.timeline-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.timeline-step { padding: 18px; border: 1px solid var(--border); border-radius: 20px; background: rgba(127, 197, 202, .08); }
.timeline-step span, .action-icon { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #031014; font-weight: 900; margin-bottom: 12px; }
.timeline-step strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
.timeline-step p { color: var(--muted); margin: 0; }
.callout { padding: 30px; margin: 34px 0 74px; }
.callout.warning { border-color: color-mix(in srgb, var(--warning), transparent 35%); }
.impact-list { display: grid; gap: 18px; margin: 24px 0 30px; }
.impact-card { display: grid; grid-template-columns: 92px 1fr; gap: 18px; padding: 26px; }
.impact-number { font-size: 2.1rem; font-weight: 950; color: var(--accent); }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 30px 0 40px; }
.stat-card { padding: 26px; text-align: center; }
.stat-card strong { display: block; font-size: 2.2rem; letter-spacing: -.04em; }
.stat-card span { color: var(--muted); }
.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 24px 0 34px; }
.photo-card { overflow: hidden; margin: 0; }
.image-link { display: block; position: relative; }
.image-link::after { content: "Click to open"; position: absolute; right: 12px; bottom: 12px; padding: 7px 10px; border-radius: 999px; background: rgba(0,0,0,.62); color: white; font-size: .8rem; font-weight: 850; opacity: 0; transform: translateY(5px); transition: .2s ease; }
.image-link:hover::after { opacity: 1; transform: translateY(0); }
.photo-card img { width: 100%; display: block; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .25s ease; }
.photo-card:hover img { transform: scale(1.035); }
.photo-card figcaption { padding: 18px; color: var(--muted); }
.testimonial { padding: 30px; margin: 34px 0; }
blockquote { margin: 0; font-size: clamp(1.25rem, 2.2vw, 1.8rem); line-height: 1.32; letter-spacing: -.035em; }
.signature { margin: 16px 0 0; color: var(--accent); font-weight: 900; }
.action-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 24px 0 34px; }
.action-card { padding: 24px; }
.action-choice {
  position: relative;
  min-height: 235px;
  display: grid;
  align-content: start;
  overflow: hidden;
  cursor: pointer;
  outline: none;
}
.action-choice::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent), transparent 86%), transparent 52%);
  opacity: 0;
  transition: opacity .22s ease;
  pointer-events: none;
}
.action-choice:focus-visible {
  border-color: color-mix(in srgb, var(--accent), transparent 20%);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent), transparent 78%), var(--shadow);
}
.action-choice.is-open,
.action-choice.is-selected {
  border-color: color-mix(in srgb, var(--accent), transparent 24%);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 84%), var(--shadow);
}
.action-choice.is-open::before,
.action-choice.is-selected::before { opacity: 1; }
.action-card h2,
.action-card p,
.action-card .action-icon,
.action-card-hint,
.action-selected-badge { position: relative; z-index: 1; }
.action-card-hint {
  align-self: end;
  display: inline-flex;
  width: fit-content;
  margin-top: 18px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(127,197,202,.08);
  color: var(--accent);
  font-size: .82rem;
  font-weight: 900;
}
.action-selected-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 6px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent), transparent 12%);
  color: #031014;
  font-size: .74rem;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .08em;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity .2s ease, transform .2s ease;
}
.action-choice.is-selected .action-selected-badge {
  opacity: 1;
  transform: translateY(0);
}
.action-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 0 0 34px;
}
.action-tool-card {
  padding: 28px;
  min-height: 235px;
}
.today-pick-text,
.action-plan-text {
  display: grid;
  align-items: center;
  min-height: 68px;
  margin: 14px 0 18px;
  padding: 17px 18px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(127,197,202,.10);
  color: var(--text) !important;
  font-weight: 850;
}
.action-plan-text.empty { color: var(--muted) !important; }
.action-plan-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.action-status-label {
  position: relative;
  z-index: 1;
  display: inline-flex;
  width: fit-content;
  margin: 0 0 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(127,197,202,.08);
  color: var(--muted);
  font-size: .74rem;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.action-choice.is-selected .action-status-label {
  border-color: color-mix(in srgb, var(--accent), transparent 42%);
  background: color-mix(in srgb, var(--accent), transparent 84%);
  color: var(--accent);
}
.action-choice.is-done .action-status-label {
  border-color: color-mix(in srgb, var(--good), transparent 30%);
  background: color-mix(in srgb, var(--good), transparent 82%);
  color: var(--good);
}
.impact-counter-control {
  display: grid;
  grid-template-columns: 50px 1fr 50px;
  gap: 10px;
  align-items: center;
  margin: 15px 0 16px;
}
.counter-button {
  display: grid;
  place-items: center;
  min-width: 50px;
  min-height: 50px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-strong), transparent 0%);
  color: var(--text);
  font: inherit;
  font-size: 1.35rem;
  font-weight: 950;
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.counter-button:hover,
.counter-button:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent), transparent 40%);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 84%);
  outline: none;
}
.counter-button:disabled {
  cursor: not-allowed;
  opacity: .48;
  transform: none;
  box-shadow: none;
}
.counter-readout {
  display: grid;
  place-items: center;
  min-height: 72px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(127,197,202,.10);
}
.counter-readout strong {
  font-size: 2.2rem;
  line-height: 1;
  color: var(--accent);
}
.counter-readout span {
  color: var(--muted);
  font-weight: 800;
}
.impact-counter-text {
  min-height: 84px;
  padding: 16px 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: rgba(127,197,202,.10);
  color: var(--text) !important;
  font-weight: 850;
}
.impact-counter-note {
  margin-bottom: 0;
  color: var(--muted) !important;
  font-size: .92rem;
}
.action-update { animation: actionUpdate .45s ease; }
.action-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.action-modal.open {
  display: flex;
  animation: fadeIn .2s ease;
}
.action-modal[hidden] { display: none !important; }
.action-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(8px);
}
.action-modal-dialog {
  position: relative;
  width: min(780px, 96vw);
  max-height: 92vh;
  overflow: auto;
  padding: 28px;
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,.18);
  background: var(--surface-strong);
  box-shadow: 0 34px 120px rgba(0,0,0,.55);
  animation: zoomIn .22s ease;
}
.action-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}
.action-modal-close:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent), transparent 35%);
  outline-offset: 3px;
}
.action-detail-summary {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 680px;
}
.action-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 22px 0 24px;
}
.action-detail-point {
  padding: 18px;
  box-shadow: none;
  background: rgba(127,197,202,.08);
}
.action-detail-point h3 {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .82rem;
}
.action-detail-point p {
  color: var(--muted);
  margin: 0;
}
.action-modal-actions,
.qr-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.qr-modal-dialog { width: min(920px, 96vw); }
.qr-share-layout {
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: 24px;
  align-items: start;
}
.qr-code-frame {
  display: grid;
  place-items: center;
  padding: 18px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: #fff;
}
.qr-code-frame img {
  width: 100%;
  max-width: 280px;
  height: auto;
  display: block;
}
.qr-detail-list {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}
.qr-detail-list div {
  padding: 13px 15px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(127,197,202,.08);
}
.qr-detail-list dt {
  color: var(--accent);
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .76rem;
}
.qr-detail-list dd {
  margin: 5px 0 0;
  color: var(--muted);
}
.qr-link-label {
  margin-bottom: 7px;
  color: var(--accent) !important;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .76rem;
}
.qr-link-box {
  padding: 13px 15px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(127,197,202,.10);
  color: var(--text) !important;
  font-weight: 800;
  word-break: break-word;
}
.qr-share-status {
  min-height: 26px;
  margin: 14px 0 0;
  color: var(--accent) !important;
  font-weight: 850;
}
.qr-action-card.is-open .action-icon,
.qr-action-card.is-selected .action-icon {
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent), transparent 78%);
}
@keyframes actionUpdate {
  0% { opacity: .45; transform: translateY(6px) scale(.99); }
  70% { opacity: 1; transform: translateY(-1px) scale(1.01); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.play-panel { padding: 30px; margin: 34px 0; }
.challenge-score { display: inline-grid; gap: 0; margin: 8px 0 14px; }
.challenge-score strong { font-size: 2.4rem; line-height: 1; color: var(--accent); }
.challenge-score span { color: var(--muted); font-weight: 700; }
.progress-track { height: 14px; border-radius: 999px; background: rgba(127, 197, 202, .15); border: 1px solid var(--border); overflow: hidden; margin: 12px 0 18px; }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); transition: width .25s ease; }
.challenge-list { display: grid; gap: 10px; margin: 18px 0; }
.challenge-list label, .quiz-question label { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: 16px; border: 1px solid var(--border); background: rgba(127, 197, 202, .08); cursor: pointer; }
.mission-card, .pledge-card { padding: 30px; margin: 34px 0; text-align: center; }
.pledge-card { margin-bottom: 74px; }
.pledge-card p { color: var(--muted); max-width: 740px; margin-inline: auto; }
.pledge-message { font-weight: 900; color: var(--accent) !important; min-height: 24px; }
.quiz-panel { padding: 24px; margin: 24px 0 34px; }
.quiz-question { padding: 22px; margin: 0 0 18px; box-shadow: none; }
.quiz-question h2 { font-size: 1.25rem; }
.quiz-explain { display: none; color: var(--muted); padding-top: 8px; margin-bottom: 0; }
.quiz-question.answered .quiz-explain { display: block; }
.quiz-question.correct { border-color: color-mix(in srgb, var(--good), transparent 30%); }
.quiz-question.incorrect { border-color: color-mix(in srgb, var(--danger), transparent 25%); }
.quiz-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.quiz-result { margin-top: 18px; text-align: center; font-size: 1.25rem; font-weight: 900; color: var(--accent); min-height: 36px; }
.sources-list { display: grid; gap: 18px; margin: 24px 0 34px; }
.source-grid { grid-template-columns: repeat(2, 1fr); }
.source-card { padding: 26px; }
.citation { padding: 16px; border-radius: 18px; border: 1px solid var(--border); background: rgba(127, 197, 202, .08); color: var(--text) !important; word-break: break-word; }
.source-link { display: inline-flex; margin-top: 6px; }
.site-footer { width: min(var(--max), calc(100% - 32px)); margin: 0 auto 24px; padding: 24px; display: flex; gap: 16px; justify-content: space-between; align-items: center; color: var(--muted); border-top: 1px solid var(--border); }
.footer-link { color: var(--accent); font-weight: 800; text-decoration: none; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }
@keyframes float { 0%, 100% { transform: translate3d(0,0,0) rotate(0deg); } 50% { transform: translate3d(0,-18px,0) rotate(6deg); } }
.poster-page { min-height: 88vh; display: grid; place-items: center; padding: 44px 0; }
.poster-sheet { width: min(720px, 100%); min-height: 900px; padding: 62px; border-radius: 34px; border: 1px solid var(--border); background: radial-gradient(circle at 20% 15%, rgba(86,240,200,.25), transparent 28%), radial-gradient(circle at 82% 38%, rgba(73,166,255,.22), transparent 32%), var(--surface-strong); box-shadow: var(--shadow); text-align: center; }
.poster-sheet h1 { font-size: clamp(3.2rem, 8vw, 6rem); }
.poster-lede { font-size: 1.35rem; color: var(--muted); }
.poster-qr-placeholder { width: 240px; height: 240px; margin: 36px auto; border: 4px dashed var(--accent); border-radius: 24px; display: grid; place-items: center; font-weight: 950; color: var(--accent); background: rgba(127,197,202,.08); }
.poster-action { font-weight: 900; font-size: 1.2rem; }
.poster-byline { color: var(--accent); font-weight: 900; }
@media (max-width: 1040px) { .main-nav a { padding: 9px 8px; font-size: .94rem; } }
@media (max-width: 900px) {
  .site-header { border-radius: 28px; align-items: flex-start; flex-wrap: wrap; }
  .menu-toggle { display: inline-flex; margin-left: auto; }
  .theme-toggle { width: 100%; }
  .main-nav { display: none; width: 100%; flex-direction: column; align-items: stretch; margin-left: 0; }
  .main-nav.open { display: flex; }
  .main-nav a { text-align: center; }
  .split, .content-grid.two, .content-grid.three, .timeline-row, .stats-grid, .photo-grid, .action-grid, .action-tools-grid, .action-detail-grid, .qr-share-layout, .source-grid, .campaign-map { grid-template-columns: 1fr; }
  .hero { padding-top: 46px; }
  .hero-visual { min-height: 380px; }
  .plastic-card, .plastic-card.ghost { left: 22px; right: 22px; max-width: none; }
  .plastic-card.ghost { top: 34px; }
  .plastic-card { bottom: 32px; }
  .impact-card { grid-template-columns: 1fr; }
  .action-choice { min-height: 0; }
  .action-tool-card { min-height: 0; }
  .action-modal { padding: 14px; }
  .action-modal-dialog { width: min(100%, 96vw); padding: 22px; border-radius: 24px; }
  .action-detail-grid { gap: 12px; }
  .qr-actions .btn { width: 100%; }
  .qr-code-frame img { max-width: 240px; }
  .today-pick-card .btn,
  .action-plan-actions .btn,
  .quiz-actions .btn,
  #resetChallenge,
  #missionButton,
  #pledgeButton { width: 100%; }
  .challenge-list label,
  .quiz-question label {
    min-height: 48px;
    align-items: center;
  }
  .site-footer { flex-direction: column; align-items: flex-start; }
}
@media print {
  body { background: white; color: black; }
  .site-header, .site-footer, .background-particles { display: none !important; }
  main { width: 100%; }
  .poster-page { padding: 0; }
  .poster-sheet { box-shadow: none; border: 2px solid #111; border-radius: 0; width: 100%; min-height: 100vh; }
}


/* === Final polish fixes added after review === */
.theme-toggle { font-weight: 800; }
.hero-visual-clean { min-height: 500px; }
.hero-visual-clean .orb { opacity: .48; }
.hero-visual-clean .orb-one { top: 40px; left: 44px; width: 122px; height: 122px; }
.hero-visual-clean .orb-two { right: 44px; bottom: 42px; width: 104px; height: 104px; }
.hero-visual-clean .orb-three { top: 92px; right: 102px; width: 44px; height: 44px; }
.hero-center-badge {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: min(260px, calc(100% - 44px));
  min-height: 178px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  border-radius: 32px;
  border: 1px solid color-mix(in srgb, var(--accent), transparent 45%);
  background: color-mix(in srgb, var(--surface-strong), transparent 8%);
  box-shadow: var(--shadow);
  animation: gentlePulse 4.8s ease-in-out infinite;
  z-index: 2;
}
.hero-center-badge span { color: var(--accent); font-weight: 950; text-transform: uppercase; letter-spacing: .12em; font-size: .76rem; }
.hero-center-badge strong { display: block; font-size: 2.15rem; line-height: .95; letter-spacing: -.06em; }
.hero-center-badge small { color: var(--muted); font-weight: 700; }
.plastic-card-left { left: 28px; bottom: 28px; max-width: 245px; z-index: 3; }
.plastic-card-right { right: 28px; top: 28px; left: auto; bottom: auto; max-width: 245px; z-index: 3; }
.plastic-card.ghost { display: none; }
@keyframes gentlePulse { 0%,100% { box-shadow: var(--shadow); transform: translate(-50%, -50%) scale(1); } 50% { box-shadow: 0 28px 90px rgba(86,240,200,.18); transform: translate(-50%, -50%) scale(1.018); } }

.info-card, .photo-card, .action-card, .action-tool-card, .source-card, .quiz-question, .play-panel, .mission-card, .pledge-card { transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease; }
.info-card:hover, .photo-card:hover, .action-card:hover, .action-tool-card:hover, .source-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent), transparent 60%); }
.btn { transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 18px 45px rgba(0,0,0,.20); }
.image-use-note { margin-bottom: 22px; border-color: color-mix(in srgb, var(--accent), transparent 60%); }
.extended-gallery { grid-template-columns: repeat(3, 1fr); }
.image-link::after { content: "Click to preview"; }
.no-scroll { overflow: hidden; }
.lightbox { position: fixed; inset: 0; z-index: 999; display: none; align-items: center; justify-content: center; padding: 24px; }
.lightbox.open { display: flex; animation: fadeIn .2s ease; }
.lightbox-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.72); backdrop-filter: blur(8px); }
.lightbox-dialog { position: relative; width: min(860px, 96vw); max-height: 92vh; overflow: auto; border-radius: 28px; border: 1px solid rgba(255,255,255,.18); background: var(--surface-strong); box-shadow: 0 34px 120px rgba(0,0,0,.55); padding: 16px; animation: zoomIn .22s ease; }
.lightbox-image { width: 100%; max-height: 70vh; object-fit: contain; border-radius: 20px; display: block; background: rgba(255,255,255,.04); }
.lightbox-caption { margin: 14px 6px 4px; color: var(--muted); font-weight: 750; }
.lightbox-close { position: absolute; top: 14px; right: 14px; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border); background: var(--surface-strong); color: var(--text); font-size: 1.6rem; line-height: 1; cursor: pointer; z-index: 2; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes zoomIn { from { opacity: 0; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }

.mission-intro { color: var(--muted); max-width: 690px; margin-inline: auto; }
.mission-text { min-height: 66px; display: grid; place-items: center; max-width: 760px; margin: 16px auto 22px; padding: 18px 22px; border-radius: 20px; border: 1px solid var(--border); background: rgba(127,197,202,.10); color: var(--text) !important; font-weight: 850; }
.mission-flash { animation: missionFlash .55s ease; }
@keyframes missionFlash { 0% { transform: scale(.98); opacity: .45; } 60% { transform: scale(1.02); opacity: 1; } 100% { transform: scale(1); } }
.pledge-card { position: relative; overflow: hidden; }
.pledge-message { margin-top: 18px; font-size: 1.15rem; }
.pledge-pop { animation: pledgePop .55s ease; }
.pledge-burst { position: relative; height: 42px; pointer-events: none; }
.pledge-burst span { position: absolute; left: 50%; top: 12px; font-size: 1.45rem; animation: emojiBurst 900ms ease-out forwards; animation-delay: var(--delay); }
@keyframes pledgePop { 0% { transform: scale(.92); opacity: .4; } 70% { transform: scale(1.04); opacity: 1; } 100% { transform: scale(1); } }
@keyframes emojiBurst { 0% { transform: translateX(0) translateY(0) scale(.6); opacity: 0; } 15% { opacity: 1; } 100% { transform: translateX(var(--x)) translateY(-34px) scale(1.2); opacity: 0; } }

.quiz-refresh-note { margin-bottom: 24px; }
.quiz-topline { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 22px; }
.quiz-topline h2 { margin-bottom: 0; }
.quiz-count-badge { padding: 9px 14px; border-radius: 999px; background: rgba(127,197,202,.12); border: 1px solid var(--border); color: var(--accent); font-weight: 950; white-space: nowrap; }
.quiz-question label.quiz-option { align-items: center; position: relative; transition: background .18s ease, border-color .18s ease, box-shadow .18s ease, transform .18s ease; }
.quiz-question label.quiz-option input { accent-color: var(--accent); flex: 0 0 auto; }
.quiz-option:hover { transform: translateX(3px); border-color: color-mix(in srgb, var(--accent), transparent 55%); }
.quiz-option.selected { background: color-mix(in srgb, var(--accent), transparent 78%) !important; border-color: color-mix(in srgb, var(--accent), transparent 20%) !important; box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 82%); }
.quiz-option.selected::after { content: "Selected"; margin-left: auto; color: var(--accent); font-size: .78rem; font-weight: 950; text-transform: uppercase; letter-spacing: .08em; }
.quiz-option.right-answer { background: color-mix(in srgb, var(--good), transparent 78%) !important; border-color: color-mix(in srgb, var(--good), transparent 20%) !important; }
.quiz-option.wrong-answer { background: color-mix(in srgb, var(--danger), transparent 82%) !important; border-color: color-mix(in srgb, var(--danger), transparent 20%) !important; }
.quiz-actions .visible-reset, .quiz-actions .secondary, #resetQuiz { color: var(--text) !important; border-color: color-mix(in srgb, var(--accent), transparent 55%); background: color-mix(in srgb, var(--surface-strong), transparent 0%); }
.retry { background: color-mix(in srgb, var(--danger), transparent 20%); color: #fff; border-color: color-mix(in srgb, var(--danger), transparent 10%); }
.retry[hidden] { display: none !important; }
.quiz-result { color: var(--accent); }
.result-pop { animation: pledgePop .45s ease; }
.wikipedia-source { border-color: color-mix(in srgb, var(--accent-2), transparent 62%); }
.source-link { color: var(--accent); font-weight: 900; }
.source-link:hover { text-decoration: underline; }

@media (max-width: 900px) {
  .plastic-card-left, .plastic-card-right { position: relative; inset: auto; max-width: none; margin: 12px 22px; }
  .hero-center-badge { position: relative; inset: auto; transform: none; margin: 26px auto 18px; }
  .hero-visual-clean { display: flex; min-height: 0; flex-direction: column; justify-content: center; padding: 22px 0; }
  .hero-visual-clean .orb { display: none; }
  .extended-gallery { grid-template-columns: 1fr; }
  .quiz-topline { align-items: flex-start; flex-direction: column; }
  .action-tools-grid, .action-detail-grid, .qr-share-layout { grid-template-columns: 1fr; }
  .action-modal-actions .btn, .qr-actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .001ms !important; }
}


/* === Review fixes: clearer hero, safer source sections, and final evidence polish === */
.hero-visual-clean { min-height: 520px; }
.hero-center-badge {
  inset: 54px auto auto 50%;
  transform: translateX(-50%);
  width: min(270px, calc(100% - 52px));
  min-height: 170px;
}
.plastic-card-left { left: 36px; bottom: 36px; max-width: 230px; }
.plastic-card-right { right: 36px; top: auto; bottom: 36px; left: auto; max-width: 230px; }
@keyframes gentlePulse { 0%,100% { box-shadow: var(--shadow); transform: translateX(-50%) scale(1); } 50% { box-shadow: 0 28px 90px rgba(86,240,200,.18); transform: translateX(-50%) scale(1.018); } }
.source-section-title {
  grid-column: 1 / -1;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface), transparent 6%);
  box-shadow: var(--shadow);
}
.source-section-title h2 { margin-bottom: 6px; }
.source-section-title p:last-child { margin-bottom: 0; color: var(--muted); }
.background-title { margin-top: 18px; border-color: color-mix(in srgb, var(--accent-2), transparent 55%); }
@media (max-width: 900px) {
  .hero-center-badge { position: relative; inset: auto; transform: none; margin: 26px auto 18px; }
  @keyframes gentlePulse { 0%,100% { box-shadow: var(--shadow); transform: scale(1); } 50% { box-shadow: 0 28px 90px rgba(86,240,200,.18); transform: scale(1.018); } }
}

/* === Final layout and contrast pass === */
.btn.secondary,
.btn.secondary:visited {
  color: var(--text);
  background: color-mix(in srgb, var(--surface-strong), transparent 0%);
  border-color: color-mix(in srgb, var(--accent), transparent 58%);
}

.btn.secondary:hover,
.btn.secondary:focus-visible {
  color: var(--text);
  background: color-mix(in srgb, var(--accent), transparent 86%);
  border-color: color-mix(in srgb, var(--accent), transparent 32%);
}

.action-tools-grid .btn.secondary,
.action-modal .btn.secondary,
.qr-actions .btn.secondary,
.play-panel .btn.secondary,
.mission-card .btn.secondary,
.pledge-card .btn.secondary,
.quiz-actions .btn.secondary,
#resetChallenge,
#missionButton,
#pledgeButton {
  color: var(--text) !important;
}

:root:not([data-theme="light"]) .action-modal .btn.primary,
:root:not([data-theme="light"]) .qr-actions .btn.primary,
:root:not([data-theme="light"]) .play-panel .btn.primary,
:root:not([data-theme="light"]) .mission-card .btn.primary,
:root:not([data-theme="light"]) .pledge-card .btn.primary,
[data-theme="dark"] .action-modal .btn.primary,
[data-theme="dark"] .qr-actions .btn.primary,
[data-theme="dark"] .play-panel .btn.primary,
[data-theme="dark"] .mission-card .btn.primary,
[data-theme="dark"] .pledge-card .btn.primary {
  color: var(--text);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent), #031014 58%),
    color-mix(in srgb, var(--accent-2), #031014 52%)
  );
  border-color: color-mix(in srgb, var(--accent), transparent 42%);
}

.hero-visual-clean {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-areas:
    "center center"
    "left right";
  gap: 18px;
  align-content: center;
  padding: 36px;
  min-height: 520px;
}

.hero-visual-clean .hero-center-badge,
.hero-visual-clean .plastic-card-left,
.hero-visual-clean .plastic-card-right {
  position: relative;
  inset: auto;
  top: auto;
  right: auto;
  bottom: auto;
  left: auto;
  z-index: 2;
}

.hero-visual-clean .hero-center-badge {
  grid-area: center;
  justify-self: center;
  width: min(300px, 100%);
  min-height: 160px;
  margin: 0;
  transform: none;
}

.hero-visual-clean .plastic-card-left {
  grid-area: left;
  max-width: none;
}

.hero-visual-clean .plastic-card-right {
  grid-area: right;
  max-width: none;
}

.hero-visual-clean .orb {
  z-index: 1;
  pointer-events: none;
}

@keyframes gentlePulse {
  0%, 100% { box-shadow: var(--shadow); transform: scale(1); }
  50% { box-shadow: 0 28px 90px rgba(86,240,200,.18); transform: scale(1.018); }
}

@media (max-width: 900px) {
  .hero-visual-clean {
    grid-template-columns: 1fr;
    grid-template-areas:
      "center"
      "left"
      "right";
    gap: 14px;
    min-height: 0;
    padding: 22px;
  }

  .hero-visual-clean .hero-center-badge,
  .hero-visual-clean .plastic-card-left,
  .hero-visual-clean .plastic-card-right {
    width: 100%;
    margin: 0;
  }
}