/* RESPONSIVE LAYOUT
   1000px  small laptop / tablet landscape
    800px  tablet portrait: hamburger menu, single-column hero and two-panel sections
    600px  phones: single-column grids, full-screen game popups
    380px  small phones
   Plus: short screens (landscape phones / small laptops) and touch-friendly tap targets. */

/* ---------- Small laptop / tablet landscape ---------- */
@media (max-width: 1000px) {
  .nav { gap: 22px; }
  .brand img { height: 36px; width: auto; }
  .about-section { gap: 40px; }
  .contact-section { gap: 40px; }
  .footer-main { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 28px; }
  .how-it-works { grid-template-columns: 1fr; }
  .how-it-works .btn { justify-self: start; }
  .lb-layout { grid-template-columns: 1fr; }
  .lb-side { position: static; grid-template-columns: 1fr 1fr; align-items: start; }
}

/* Explore Our Services: 4 → 2 → 1 columns */
@media (max-width: 1100px) { .offer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) {
  .offer-grid { grid-template-columns: 1fr; }
  .offer-card { padding: 18px; }
}


/* ---------- Tablet portrait ---------- */
@media (max-width: 800px) {
  .nav, .header-play { display: none; }
  .account-name { display: none; }
  .account-btn.signed-in { padding-right: 5px; }
  .menu-toggle { display: flex; }
  .nav.mobile {
    display: flex;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    background: #090b0d;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px #000a;
    padding: 8px var(--gutter) 16px;
    flex-direction: column;
    gap: 0;
    font-size: 17px;
  }
  .nav.mobile a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav.mobile a:last-child { border-bottom: 0; }
  .nav.mobile a::after { display: none; }
  .nav.mobile a.active { color: var(--accent); }
  .nav.mobile .nav-store { display: block; color: var(--accent); }

  .hero { grid-template-columns: 1fr; padding-top: 32px; padding-bottom: 24px; gap: 0; }
  .hero-copy > p { font-size: 16px; }
  .hero-visual { height: 360px; margin-top: 0; }
  .hero-stage { width: min(300px, 70%); }
  .orb-a { width: 260px; height: 260px; }
  .orb-b { width: 360px; height: 360px; }
  .chip-champ { right: -10%; }
  .chip-games { left: -12%; }
  .chip-rank { right: -2%; }
  .scroll-cue { display: none; }
  .hero-stats { gap: 22px; margin-top: 28px; }

  .section { padding-block: 32px 48px; }
  .section-heading { display: block; margin-bottom: 24px; }
  .section-heading > p { margin-top: 18px; }

  .challenge-strip { grid-template-columns: 1fr; gap: 10px; }

  .about-section { grid-template-columns: 1fr; gap: 30px; }
  .about-visual { max-width: 320px; order: 2; } /* text first on small screens */
  .about-chip.c2 { right: 0; }

  .contact-section { grid-template-columns: 1fr; gap: 40px; }
  .contact-points { max-width: none; }

  .footer-main { grid-template-columns: repeat(3, 1fr); gap: 28px 24px; padding: 32px 0 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-brand p { max-width: 420px; }
  .footer-cta { flex-direction: column; align-items: flex-start; gap: 18px; padding: 24px; margin-top: 36px; }

  .game-card h3 { margin-top: 28px; }
}

/* ---------- Phones ---------- */
@media (max-width: 600px) {
  .section { padding-block: 28px 40px; }

  .ticker { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 12px; }

  .game-card { min-height: 0; padding: 22px 22px 64px; }
  .game-icon { width: 64px; height: 64px; margin-top: 4px; }
  .game-icon svg { width: 36px; height: 36px; }
  .game-card h3 { font-size: 28px; margin-top: 22px; }
  .game-launch { bottom: 18px; left: 22px; }

  .how-it-works { padding: 22px 20px; }
  .how-it-works ol { grid-template-columns: 1fr; gap: 18px; }
  .how-it-works .btn { width: 100%; justify-content: center; }

  .pillars { grid-template-columns: 1fr; }
  .pillar { display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; padding: 16px; align-items: center; }
  .pillar-icon { grid-row: span 2; }
  .pillar h3 { margin: 0; font-size: 17px; }
  .roadmap { grid-template-columns: 1fr; gap: 18px; padding-left: 26px; }
  .roadmap::before { top: 6px; bottom: 6px; left: 5px; right: auto; width: 2px; height: auto; background: linear-gradient(var(--accent) 0 30%, var(--line-strong) 30%); }
  .roadmap li { padding: 0; }
  .roadmap li::before { left: -26px; top: 3px; }

  .contact-card { padding: 26px 20px; }
  .contact-card h3 { font-size: 24px; }
  .contact-points li { padding: 14px; gap: 14px; }
  .field-row { grid-template-columns: 1fr; }
  .form-foot .btn { width: 100%; justify-content: center; }

  .lb-list li { grid-template-columns: 26px 32px 1fr auto; gap: 10px; padding: 10px; }
  .lb-tabs { display: grid; grid-template-columns: 1fr 1fr; }
  .lb-podium { gap: 6px; }
  .pod { padding: 16px 6px 14px; }
  .pod.p1 { padding-top: 22px; }
  .pod-avatar { width: 40px; height: 40px; font-size: 18px; }
  .pod.p1 .pod-avatar { width: 48px; height: 48px; font-size: 22px; }
  .pod-name { font-size: 13px; }
  .pod-score { font-size: 20px; }
  .pod.p1 .pod-score { font-size: 24px; }
  .pod-meta { display: none; }

  .footer-main { grid-template-columns: 1fr 1fr; }
  /* Phones: podium → your standing → ranks 4–10 → board info */
  .lb-layout { gap: 14px; }
  .lb-main, .lb-side { display: contents; }
  .lb-podium { order: 1; margin-bottom: 0; }
  #lbMe { order: 2; }
  .lb-list { order: 3; }
  #lbInfo { order: 4; }
  .footer-bottom { grid-template-columns: 1fr; justify-items: center; gap: 10px; }
  .footer-bottom .site-status, .footer-bottom .back-top { justify-self: center; }
  .footer-cta { padding: 20px 18px; margin-top: 28px; }
  .footer-main { gap: 24px 16px; padding: 28px 0 20px; }
  .footer-brand p { margin: 10px 0 14px; }
  .footer-cta-actions { width: 100%; }
  .footer-cta-actions .btn { flex: 1; justify-content: center; padding: 12px 10px; }
  /* Explore on the left; Games with Contact stacked under it on the right */
  .footer-main { grid-template-areas: "brand brand" "explore games" "explore contact"; }
  .footer-brand { grid-area: brand; }
  .fc-explore { grid-area: explore; }
  .fc-games { grid-area: games; }
  .fc-contact { grid-area: contact; }

  /* Game and sign-in popups go full-screen */
  .game-modal { padding: 0; }
  .game-modal-panel { width: 100%; max-height: 100%; height: 100%; border: 0; padding: 22px 18px calc(22px + env(safe-area-inset-bottom)); }
  .auth-panel { height: auto; max-height: 100%; margin-top: auto; border-top: 1px solid var(--line-strong); }
  .game-title { font-size: 32px; }
  .big-button { width: 160px; height: 160px; }
  .equation { font-size: 44px; }
  .answer-row input { width: 120px; }
  .submit-score { flex-direction: column; align-items: stretch; text-align: center; }
}

/* ---------- Large phones and below: compact hero extras ---------- */
@media (max-width: 480px) {
  .hero-pill { letter-spacing: .14em; }
  .hero-chip { padding: 7px 10px 7px 7px; gap: 8px; }
  .chip-icon { width: 26px; height: 26px; }
  .hero-chip strong { font-size: 12px; }
  .hero-visual { height: 340px; }
  .hero-stage { width: min(270px, 76%); }
  .chip-games { display: none; }
  .chip-champ { top: -13%; right: -8%; }
  .chip-rank { bottom: -19%; left: -8%; right: auto; }
}

/* ---------- Small phones ---------- */
@media (max-width: 380px) {
  .brand img { height: 32px; width: auto; }
  .header-actions { gap: 8px; }
  .account-btn { padding: 0 10px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; }
  .hero-stats { gap: 16px; }
  .hero-stats strong { font-size: 21px; }
  .lb-tabs button { padding: 6px 10px 6px 6px; font-size: 13px; }
  .topic-chips label > span { padding: 8px 11px; }
  .footer-main { gap: 30px 16px; }
}

/* ---------- Short screens (landscape phones, small laptops) ---------- */
@media (max-height: 760px) {
  .game-modal-panel { padding-top: 24px; padding-bottom: 24px; }
  .game-title { font-size: 30px; margin: 12px 0 6px; }
  .score-line { margin: 14px 0; }
  .big-button { width: 150px; height: 150px; }
  .memory-board { margin: 12px auto; }
  .equation { margin: 12px; font-size: 42px; }
}
/* Memory board shrinks to fit the screen height so the whole game is visible. */
.memory-board { width: min(360px, 100%, max(180px, 100vh - 470px)); }

@media (max-height: 500px) and (orientation: landscape) {
  .hero { min-height: 0; padding-block: 40px; }
  .scroll-cue { display: none; }
  .game-modal { padding: 0; }
  .game-modal-panel { width: 100%; height: 100%; max-height: 100%; border: 0; padding: 14px 20px; }
  .game-modal-top .eyebrow { display: none; }
  .game-sub { display: none; }
  .game-title { font-size: 24px; margin: 4px 0; }
  .score-line { margin: 6px 0; }
  .score-line strong { font-size: 20px; }
  .big-button { width: 120px; height: 120px; }
  /* Memory: board on the right, info on the left */
  #gameArea:has(.memory-board) { display: grid; grid-template-columns: 1fr auto; column-gap: 28px; align-items: center; }
  #gameArea:has(.memory-board) > :not(.memory-board) { grid-column: 1; }
  .memory-board { grid-column: 2; grid-row: 1 / span 6; width: min(300px, 100vh - 60px); gap: 6px; margin: 0; }
  .equation { font-size: 34px; margin: 6px; }
  .result { margin-top: 8px; }
  .auth-panel { padding: 18px 22px; }
  .auth-tabs { margin: 10px 44px 10px 0; }
  .auth-hint, .auth-panel > .eyebrow { display: none; }
}

/* ---------- Touch screens: comfortable tap targets ---------- */
@media (pointer: coarse) {
  .game-launch { padding: 12px 0; margin-bottom: -12px; }
  .footer-col { gap: 2px; }
  .footer-col a { padding: 8px 0; }
  .challenge-strip a, .player-tag .link-btn { display: inline-block; padding: 12px 0; }
  .cp-socials a { padding: 8px 0; }
  .contact-points li > div > a { display: inline-block; padding: 6px 0; }
  .link-btn { padding: 10px 2px; }
  .socials a { width: 44px; height: 44px; }
  .lb-tabs button { min-height: 44px; }
  .account-btn, .menu-toggle { min-height: 44px; }
  .account-btn { height: 44px; }
  .game-card:hover { transform: none; }
  .pill-tag { padding: 7px 10px; margin: -4px 0; }
}