/* ============================================================
   MOBILE.CSS · Drop-in mobile + touch fixes
   Load this AFTER styles.css. Overrides only what needs fixing.
   ============================================================ */

/* ===== Hamburger menu (replaces vanished topnav on mobile) ===== */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1.5px solid var(--bcg-green);
  color: var(--bcg-green);
  width: 42px;
  height: 42px;
  border-radius: 4px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.mobile-menu-btn svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(13, 79, 55, 0.96);
  z-index: 200;
  padding: 24px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-menu-overlay.open { display: block; }
.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--paper);
  font-size: 28px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  line-height: 1;
}
.mobile-menu-nav {
  margin-top: 80px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.mobile-menu-nav a {
  font-family: 'Source Serif 4', serif;
  font-size: 24px;
  font-weight: 400;
  color: var(--paper);
  text-decoration: none;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: baseline;
  gap: 14px;
  letter-spacing: -0.01em;
}
.mobile-menu-nav a .step-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--bcg-green-bright);
  letter-spacing: 0.15em;
  font-weight: 500;
  flex-shrink: 0;
  width: 30px;
}
.mobile-menu-nav a.active { color: var(--bcg-green-bright); }
.mobile-menu-nav a.cheatsheet-link {
  margin-top: 12px;
  border: 1.5px solid var(--bcg-green-bright);
  border-radius: 100px;
  padding: 14px 22px;
  font-style: italic;
  align-self: flex-start;
}

/* ===== Phone-size: full mobile overhaul ===== */
@media (max-width: 720px) {

  /* Show hamburger, hide nothing in topbar */
  .mobile-menu-btn { display: flex; }
  body.mobile-menu-open { overflow: hidden; }

  /* Topbar tightens, brand-text trims, padding shrinks */
  .topbar {
    padding: 12px 18px;
  }
  .brand { gap: 12px; }
  .brand-logo { height: 24px; }
  .brand-title { font-size: 9px; }
  .brand-sub { font-size: 14px; }

  /* HERO: tighten the giant headline */
  .hero {
    padding: 48px 20px 40px;
  }
  .hero-grid {
    gap: 36px;
  }
  .hero-h1 {
    font-size: 44px;
    line-height: 1.04;
  }
  .hero-lede { font-size: 17px; margin-bottom: 28px; }
  .hero-cta { flex-direction: column; gap: 12px; }
  .btn-primary, .btn-secondary {
    width: 100%;
    text-align: center;
    justify-content: center;
    padding: 16px 24px;
  }
  .hero-meta {
    flex-direction: column;
    gap: 20px;
    padding-top: 24px;
  }
  .portrait-wrap { max-width: 100%; align-items: stretch; }
  .portrait { max-width: 100%; }

  /* OBJECTIVE strip stacks */
  .objective { padding: 40px 20px; }
  .objective-wrap {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .objective-text { font-size: 22px; }

  /* SECTION padding + headlines smaller */
  section { padding: 56px 20px; }
  .section-h { font-size: 32px; }
  .section-lede { font-size: 17px; margin-bottom: 40px; }

  /* LADDER: stack vertically on phone */
  .ladder-viz { padding: 24px 0; }
  .ladder-axis, .ladder-y-label, .ladder-arrow, .ladder-x-label { display: none; }
  .ladder-steps {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-left: 0;
  }
  .ladder-step .ladder-bar {
    height: auto !important;
    min-height: 110px;
    padding: 20px 16px;
  }
  .ladder-step[data-rung="2"] .ladder-bar,
  .ladder-step[data-rung="3"] .ladder-bar { min-height: 110px; }
  .ladder-rung-content {
    position: static;
    padding: 0;
  }
  .ladder-rung-name { font-size: 22px; }
  .ladder-cards { grid-template-columns: 1fr; gap: 14px; }

  /* AGENDA: collapse the time column */
  .agenda-row {
    grid-template-columns: 72px 1fr;
    gap: 16px;
    padding: 18px 18px;
  }
  .agenda-row .agenda-tag {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 4px;
  }
  .agenda-body .agenda-title { font-size: 17px; }
  .agenda-body .agenda-sub { font-size: 13px; }

  /* RULES: stack all to 1 column */
  .rules-mixed { grid-template-columns: 1fr; gap: 14px; }
  .rule-card, .rule-annotated, .rule-split { height: auto; min-height: 280px; }
  .rule-annotated, .rule-split { padding: 24px 20px; }

  /* Flip cards: smaller, and re-hint they're tappable */
  .rule-card { height: 300px; }
  .rule-h { font-size: 22px; }
  .rule-p { font-size: 14px; }

  /* PREAMBLE (4-part prompt, 4-ingredients) */
  .preamble { padding: 48px 20px 24px; }
  .preamble-h { font-size: 28px; }
  .preamble-lede { font-size: 16px; margin-bottom: 28px; }
  .preamble-grid, .ingredients-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .anatomy-card, .tools-card, .ingredients-card { padding: 20px; }
  .anatomy-parts { grid-template-columns: 1fr; gap: 10px; }
  .anatomy-h2 { font-size: 20px; }

  /* Tool picker table scrolls horizontally if needed */
  .tools-table { font-size: 12px; }
  .tools-table tbody td { padding: 10px 8px; font-size: 12px; }
  .tools-table tbody td:first-child { font-size: 14px; }
  .tools-table thead th { font-size: 9px; padding: 8px; }

  /* KILL MY PAGE callout stacks */
  .kill-my-page {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 24px 20px;
    text-align: left;
  }
  .kill-mark { font-size: 40px; margin: 0; }
  .kill-h { font-size: 20px; }
  .kill-prompt-btn { width: 100%; text-align: center; padding: 14px; }

  /* LAYER HERO */
  .layer-hero { padding: 40px 20px 32px; }
  .layer-h { font-size: 40px; }
  .layer-lede { font-size: 17px; }
  .layer-titlerow { grid-template-columns: 1fr; gap: 16px; }
  .layer-rung-vis { font-size: 9px; }

  /* ADVENTURES */
  .adventures-intro { padding: 40px 20px 16px; }
  .adventures { padding: 0 20px 56px; }
  .adventures-wrap { grid-template-columns: 1fr; gap: 14px; }
  .adventure { padding: 24px 20px; }
  .adventure-h { font-size: 22px; }

  /* QUESTION OPENER */
  .workflow { padding: 0 20px 56px; }
  .question-opener { padding: 24px 20px; }
  .question-q { font-size: 21px; margin-bottom: 18px; }
  .question-options { grid-template-columns: 1fr; gap: 10px; }
  .question-opt { padding: 16px 18px; }

  /* WORKFLOW HEADINGS */
  .workflow-h { font-size: 30px; }
  .workflow-sub { font-size: 16px; }

  /* STEPS: tighten the number column on phone */
  .step {
    grid-template-columns: 44px 1fr;
    gap: 14px;
    padding: 20px 0;
  }
  .step-num { font-size: 32px; }
  .step-h { font-size: 18px; }
  .step-flow { font-size: 10px; }
  .step-desc { font-size: 14px; }

  /* PROMPT BOX: horizontal scroll for long prompts, copy stays visible */
  .step-prompt {
    flex-direction: column;
    gap: 12px;
    padding: 14px 16px;
  }
  .step-prompt-text { font-size: 11.5px; }
  .copy-btn { align-self: flex-start; }

  /* DELIV BAR + GOV CARD stack cleaner */
  .deliv-bar { padding: 20px; gap: 14px; }
  .deliv-bar-mark { font-size: 24px; }
  .deliv-bar-name { font-size: 16px; }
  .gov-card { padding: 18px 20px; }

  /* OUTPUT PREVIEWS: tighter padding, smaller fonts */
  .output-preview-header { padding: 10px 14px; }
  .output-preview-body { padding: 20px 18px; font-size: 13px; }
  .icmemo-row, .email-row { grid-template-columns: 1fr; gap: 4px; padding: 8px 0; }
  .icmemo-row .icmemo-lbl, .email-row .lbl { font-size: 9px; }
  .icmemo-h, .email-subject { font-size: 17px; }
  .skill-content { padding: 18px 16px; font-size: 11px; }
  .skill-tab { padding: 8px 12px; font-size: 10px; }

  /* TECH APPENDIX */
  .tech-appendix-toggle { padding: 16px 20px; font-size: 11px; }
  .tech-appendix-body { padding: 20px 18px; }

  /* HOMEWORK */
  .close { padding: 56px 20px; }
  .close-h { font-size: 36px; }
  .close-lede { font-size: 17px; }
  .hw-grid { grid-template-columns: 1fr; gap: 14px; }
  .hw-card { padding: 22px 18px; }
  .discussion { padding: 24px 20px; }
  .discussion-q { font-size: 18px; }

  /* CHEATSHEET */
  .cs-hero { padding: 40px 20px 32px; }
  .cs-hero h1 { font-size: 40px; }
  .cs-hero-lede { font-size: 16px; }
  .cs-filters { padding: 16px 20px; top: 60px; }
  .cs-filters-wrap { gap: 6px; }
  .cs-filter { padding: 6px 12px; font-size: 12px; }
  .cs-filter-label { display: none; }
  .cs-grid { padding: 24px 20px; }
  .cs-grid-wrap { grid-template-columns: 1fr; gap: 14px; }
  .cs-card { padding: 18px 20px; }
  .cs-prompt { padding: 12px 14px; }
  .cs-prompt-text { font-size: 11.5px; }

  /* TOUCH TARGETS: every clickable should be ≥44px tall */
  button, .question-opt, .ladder-card, .adventure, .hw-card, .cs-filter {
    min-height: 44px;
  }

  /* TAP HIGHLIGHT for better feedback */
  .rule-card, .ladder-card, .adventure, .question-opt, .hw-card, .cs-card {
    -webkit-tap-highlight-color: rgba(23, 123, 87, 0.15);
  }
}

/* ===== Tablet adjustments (between phone and desktop) ===== */
@media (min-width: 721px) and (max-width: 1100px) {
  .topnav a:not(.cheatsheet-link) {
    padding: 8px 10px;
    font-size: 12px;
  }
  .topnav a .step-num { display: none; }
}

/* ===== Very narrow phones (iPhone SE etc) ===== */
@media (max-width: 380px) {
  .hero-h1 { font-size: 38px; }
  .layer-h { font-size: 34px; }
  .close-h { font-size: 30px; }
  .cs-hero h1 { font-size: 32px; }
  .section-h { font-size: 28px; }
  .ladder-rung-name { font-size: 20px; }
}

/* ===== Reduce motion preference (accessibility) ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .rule-card-inner { transition: none !important; }
}