/* ================================================================
   RESPONSIVE.CSS — Breakpoints, Touch, Hamburger Menu
   Synapse · Product of Synaptix Technologies · Built by Gurnoor Singh
   ================================================================ */

/* ══════════════════════════════════════════════════════════
   TOUCH DEVICES — Disable custom cursor
   ══════════════════════════════════════════════════════════ */
@media (hover: none), (pointer: coarse) {
  body {
    cursor: auto;
  }

  #cur,
  #cur2 {
    display: none;
  }

  /* Increase tap target sizes */
  .btn {
    min-height: 44px;
  }

  .nav-link {
    padding: 8px 4px;
  }

  .q-opt,
  .vote-btn,
  .sc-opt {
    min-height: 48px;
  }
}


/* ══════════════════════════════════════════════════════════
   MAX-WIDTH: 900px — Tablet
   ══════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .ending-bottom {
    grid-template-columns: 1fr;
  }

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

  .h-cards {
    grid-template-columns: 1fr;
  }

  .drop-zones {
    grid-template-columns: 1fr;
  }

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

  .ml-branches {
    grid-template-columns: 1fr;
  }

  .quiz-opts {
    grid-template-columns: 1fr;
  }
}


/* ══════════════════════════════════════════════════════════
   MAX-WIDTH: 1024px — Mobile & Tablet / Hamburger collapse
   ══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  /* Navigation */
  nav {
    padding: 14px 20px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(2, 4, 8, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    z-index: 550;
  }

  .nav-links .nav-link {
    font-size: 14px;
    letter-spacing: 4px;
    padding: 8px 0;
  }

  /* Show hamburger */
  .nav-toggle {
    display: flex;
  }

  /* Open state — show nav */
  .nav-open .nav-links {
    display: flex;
  }

  /* Hamburger → X transform */
  .nav-open .nav-toggle span:nth-child(1) {
    transform: rotate(45deg) translateY(5px) translateX(5px);
  }

  .nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
  }

  .nav-open .nav-toggle span:nth-child(3) {
    transform: rotate(-45deg) translateY(-5px) translateX(5px);
  }

  /* Footer single column */
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  /* Hero adjustments */
  .hero-title {
    letter-spacing: -1px;
  }

  .hero-desc {
    font-size: 15px;
    padding: 0 10px;
  }

  /* XP HUD compact */
  #xp-hud {
    padding: 6px 12px;
    gap: 8px;
    margin-left: auto;
    margin-right: 16px;
  }

  .xp-val {
    font-size: 16px;
  }

  .xp-bar-track {
    width: 80px;
  }
}


/* ══════════════════════════════════════════════════════════
   MAX-WIDTH: 600px — Small Mobile
   ══════════════════════════════════════════════════════════ */
@media (max-width: 600px) {
  section {
    padding: 80px 18px;
  }

  .llm-stats {
    grid-template-columns: 1fr 1fr;
  }

  .sec-title {
    font-size: clamp(26px, 6vw, 40px);
  }

  .sec-sub {
    font-size: 14px;
    margin-bottom: 40px;
  }

  .quiz-card {
    padding: 28px 20px;
  }

  .quiz-q {
    font-size: 15px;
  }

  .hero-btns {
    flex-direction: column;
    align-items: center;
  }

  .hero-btns .btn {
    width: 100%;
    max-width: 280px;
  }

  .cert {
    padding: 28px;
  }

  .cert-name {
    font-size: 24px;
  }

  .ending-title {
    font-size: clamp(20px, 5vw, 32px);
  }

  .apps-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
  }

  .app-card {
    padding: 18px 10px;
  }

  .app-icon {
    font-size: 30px;
  }

  .df-game {
    padding: 24px;
  }

  .df-btns {
    flex-direction: column;
    align-items: stretch;
  }

  .df-real,
  .df-fake {
    text-align: center;
  }

  .popup-box {
    padding: 28px;
    border-radius: 20px;
  }

  .lab-inner {
    width: 96%;
    border-radius: 18px;
  }

  .lab-body {
    padding: 20px;
  }

  .venn-outer {
    width: 320px;
    margin-bottom: 50px;
  }

  .venn-ai {
    padding-top: 24px;
  }

  .venn-ml {
    width: 218px;
    height: 218px;
    bottom: 8px;
    padding-top: 20px;
  }

  .venn-dl {
    width: 128px;
    height: 128px;
    bottom: 16px;
  }

  .venn-label {
    font-size: 9.5px;
    margin-bottom: 3px;
  }

  .venn-desc {
    font-size: 8.5px;
    width: 80%;
  }

  .venn-ml .venn-label {
    font-size: 9px;
  }

  .venn-ml .venn-desc {
    font-size: 8px;
    width: 82%;
  }

  .venn-dl .venn-label {
    font-size: 10.5px;
    margin-bottom: 2px;
  }

  .venn-dl .venn-desc {
    font-size: 8px;
    width: 90%;
  }

  .drag-cards-row {
    gap: 8px;
  }

  .drag-card {
    padding: 8px 14px;
    font-size: 12px;
  }

  #s7 {
    padding: 80px 18px;
  }

  .token-game,
  .playground {
    padding: 20px;
  }

  .pg-input-wrap {
    flex-direction: column;
  }
}


/* ══════════════════════════════════════════════════════════
   MAX-WIDTH: 400px — Extra Small
   ══════════════════════════════════════════════════════════ */
@media (max-width: 400px) {
  .llm-stats {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: clamp(36px, 12vw, 60px);
  }

  .hero-sub {
    font-size: 11px;
    letter-spacing: 2px;
  }

  #xp-hud {
    padding: 6px 10px;
    border-radius: 12px;
    margin-right: 12px;
  }

  .xp-bar-track {
    width: 60px;
    height: 5px;
  }

  .xp-val {
    font-size: 14px;
  }

  .xp-icon {
    font-size: 16px;
  }

  .watermark {
    display: none;
  }
}