/* ═══════════════════════════════════════════════════════════════
   FluentPath — Mobile Enhancements
   ─────────────────────────────────────────────────────────────
   Shared across all student-facing pages.
   Include AFTER the page's own <style> block so cascade wins.
   Uses CSS custom properties (--ink, --paper, --rust, etc.)
   already defined by each page.
   ═══════════════════════════════════════════════════════════════ */

/* ── Global touch optimisations ────────────────────────────── */
button, a, [onclick], .option-btn, .mcq-opt, .level-card, .vocab-item, .task-choice-btn {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ═══════════════════════════════════════════════════════════════
   MOBILE STYLES  (max-width: 600px)
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 600px) {

  /* ── Prevent iOS auto-zoom on input focus ─────────────────
     iOS Safari zooms in when font-size < 16px on focus.
     Force 16px minimum on all form controls.
     ─────────────────────────────────────────────────────────── */
  input,
  textarea,
  select,
  .text-input-area,
  .writing-area,
  .field-group input,
  .fg input,
  .fg select {
    font-size: 16px !important;
  }

  /* ── Touch targets — WCAG minimum 44px, we target 48px ──── */
  .option-btn,
  .mcq-opt {
    min-height: 48px;
    padding: 16px;
    gap: 14px;
    font-size: 15px;
    border-radius: 4px;
  }
  .opt-letter {
    width: 32px;
    height: 32px;
    font-size: 13px;
    border-radius: 4px;
  }

  /* ── MCQ option spacing ───────────────────────────────────── */
  .options-grid,
  .mcq-options {
    gap: 12px;
  }

  /* ── Sticky bottom navigation ─────────────────────────────
     Keeps Continue/Next/Back buttons thumb-reachable at all
     times. Uses sticky so the bar scrolls normally until it
     reaches the bottom edge, then anchors there.
     ─────────────────────────────────────────────────────────── */
  .lesson-nav {
    position: sticky;
    bottom: 0;
    background: var(--paper, #f5f0e8);
    padding: 16px 20px;
    border-top: 1px solid var(--rule, #c8bfa8);
    box-shadow: 0 -4px 16px rgba(26, 18, 8, 0.08);
    margin: 24px -20px 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
  }

  /* ── Primary action buttons — full width, large tap area ── */
  .btn-next,
  .btn-begin,
  .btn-start,
  .btn-enter,
  .btn-cta,
  .btn-nav.primary {
    width: 100%;
    padding: 18px 24px;
    font-size: 17px;
    min-height: 52px;
    border-radius: 6px;
    text-align: center;
    justify-content: center;
  }

  /* ── Secondary / back buttons ─────────────────────────────── */
  .btn-back,
  .btn-nav:not(.primary) {
    padding: 14px 20px;
    font-size: 14px;
    min-height: 48px;
    border-radius: 6px;
  }

  /* Lesson nav layout: back button shrinks, next button grows */
  .lesson-nav .btn-back {
    width: auto;
    flex-shrink: 0;
  }
  .lesson-nav .btn-next {
    flex: 1;
  }

  /* ── Textareas — larger writing areas ─────────────────────── */
  textarea,
  .text-input-area,
  .writing-area {
    min-height: 140px;
    padding: 16px;
    line-height: 1.8;
    border-radius: 4px;
  }

  /* ── Form inputs — comfortable size ───────────────────────── */
  input[type="text"],
  input[type="date"],
  input[type="email"] {
    padding: 12px;
    min-height: 48px;
  }

  /* ── Level selection cards ────────────────────────────────── */
  .level-card {
    padding: 18px 14px;
    min-height: 72px;
  }

  /* ── Task choice buttons ──────────────────────────────────── */
  .task-choice-btn {
    min-height: 48px;
    padding: 14px 16px;
  }

  /* ── Vocabulary cards ─────────────────────────────────────── */
  .vocab-item {
    padding: 16px;
    min-height: 48px;
  }

  /* ── Record button — already 72px, but add ring for clarity  */
  .record-btn {
    box-shadow: 0 0 0 4px rgba(184, 71, 30, 0.15);
  }

  /* ── Confidence buttons ───────────────────────────────────── */
  .conf-btn {
    min-height: 48px;
    padding: 12px 16px;
    font-size: 14px;
  }

  /* ── Topbar — slimmer on mobile ───────────────────────────── */
  .top-nav {
    height: 46px;
    padding: 0 12px !important;
  }
  .nav-title,
  .nav-brand {
    font-size: 13px;
  }
  .nav-section,
  .nav-info {
    display: none;
  }
  .nav-timer {
    font-size: 13px !important;
  }
  .nav-day-badge {
    font-size: 9px !important;
    padding: 3px 8px !important;
  }

  /* ── Content padding — room for sticky nav ────────────────── */
  .question-area,
  .activity-card {
    padding-bottom: 32px;
  }

  /* ── Progress dots — slightly larger ──────────────────────── */
  .step-dot {
    width: 10px;
    height: 10px;
  }
  .step-dot.active {
    transform: scale(1.4);
  }

  /* ── Sections overview on test cover ──────────────────────── */
  .sections-overview,
  .score-breakdown {
    grid-template-columns: 1fr !important;
    gap: 12px;
  }

  /* ── Audio play button — larger tap target ─────────────────── */
  .audio-box,
  .play-btn {
    min-height: 48px;
    padding: 14px 20px;
  }

  /* ── Hub page: milestone cards ────────────────────────────── */
  .milestone-card {
    padding: 16px;
  }
  .milestone-title {
    font-size: 18px;
  }
  .btn-cta {
    display: block;
    padding: 18px 24px;
  }

  /* ── Journey timeline — tighter left margin ───────────────── */
  .journey {
    padding-left: 36px;
  }

  /* ── Video call panel — adjust for mobile nav ─────────────── */
  .vc-panel {
    bottom: 12px !important;
    right: 12px !important;
  }
  .vc-btn-join {
    padding: 12px 16px;
    font-size: 13px;
  }
}

/* ═══════════════════════════════════════════════════════════════
   SMALL PHONES  (max-width: 380px)
   Extra adjustments for narrow screens (iPhone SE, etc.)
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 380px) {

  .option-btn,
  .mcq-opt {
    padding: 14px 12px;
    font-size: 14px;
    gap: 10px;
  }
  .opt-letter {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }

  .btn-next,
  .btn-begin,
  .btn-start,
  .btn-enter,
  .btn-cta,
  .btn-nav.primary {
    font-size: 16px;
    padding: 16px 20px;
  }

  .level-card {
    padding: 14px 10px;
  }

  .milestone-dot {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }
}

/* ═══════════════════════════════════════════════════════════════
   TABLET & DESKTOP ENHANCEMENT  (min-width: 601px)
   Subtle hover upgrades for mouse users.
   ═══════════════════════════════════════════════════════════════ */
@media (min-width: 601px) and (hover: hover) {

  .option-btn:hover:not(:disabled),
  .mcq-opt:hover:not(:disabled) {
    transform: translateX(3px);
  }

  .btn-next:hover,
  .btn-begin:hover,
  .btn-start:hover,
  .btn-enter:hover,
  .btn-cta:not(.secondary):hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 18, 8, 0.15);
  }
}