/* ============================================
   KAIDOKI — Mobile & Tablet Responsive Styles
   ============================================
   breakpoints:
   - tablet:  max-width 768px
   - mobile:  max-width 480px
   ============================================ */

/* ---- Hamburger Menu Button ---- */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 201;
  position: relative;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
  border-radius: 1px;
}
.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Mobile Overlay ---- */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 199;
}
.mobile-overlay.active {
  display: block;
}

/* ---- Bottom Nav (Mobile) ---- */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px) saturate(1.8);
  -webkit-backdrop-filter: blur(16px) saturate(1.8);
  border-top: 1px solid rgba(243,232,222,.5);
  z-index: 100;
  padding: 4px 0;
  padding-bottom: env(safe-area-inset-bottom, 4px);
}
.bottom-nav-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
  max-width: 500px;
  margin: 0 auto;
}
.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 8px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.6rem;
  font-weight: 500;
  transition: color .15s, transform .15s cubic-bezier(.34,1.56,.64,1);
  min-width: 48px;
  -webkit-tap-highlight-color: transparent;
}
.bottom-nav-item:active {
  transform: scale(.88);
  transition-duration: .06s;
}
.bottom-nav-item.active {
  color: var(--primary);
}
.bottom-nav-icon {
  font-size: 1.25rem;
  line-height: 1;
}

/* ============================================
   Tablet (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  /* Show hamburger */
  .mobile-menu-btn { display: block; }

  /* Header — z-indexを上げて、navがoverlay(199)の上に出るようにする */
  .site-header { z-index: 201; }
  .header-inner { height: 50px; padding: 0 1rem; }
  .logo-text { font-size: 1rem; }
  .logo-tagline { font-size: 0.55rem; }

  /* Nav becomes side drawer */
  .header-nav {
    position: fixed;
    top: 0;
    right: -280px;
    width: 270px;
    height: 100vh;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    flex-direction: column;
    align-items: flex-start;
    padding: 60px 1.5rem 2rem;
    gap: 0;
    z-index: 200;
    box-shadow: -8px 0 30px rgba(0,0,0,0.08);
    transition: right 0.35s cubic-bezier(.22,1,.36,1);
    overflow-y: auto;
  }
  .header-nav.open {
    right: 0;
  }
  .header-nav .nav-link {
    display: block;
    width: 100%;
    padding: 0.75rem 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .header-nav .nav-plan {
    margin: 0.75rem 0;
  }
  .header-nav .lang-switcher {
    margin: 0.5rem 0;
  }
  .header-nav .lang-select {
    font-size: 0.85rem;
    padding: 6px 10px;
  }
  .header-nav .settings-dropdown {
    width: 100%;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
  }
  .header-nav .settings-btn { display: none; }
  .header-nav .settings-menu {
    display: block; position: static;
    box-shadow: none; border: none; padding: 0;
    background: transparent; min-width: auto;
  }

  /* Show bottom nav */
  .bottom-nav { display: block; }

  /* Main content padding for bottom nav */
  .main-content {
    padding: 1.5rem 1rem;
    padding-bottom: calc(70px + env(safe-area-inset-bottom, 0px));
  }

  /* Hero */
  .appraisal-hero { padding: 1.5rem 0 1rem; }
  .hero-title { font-size: 1.3rem; }
  .hero-sub { font-size: 0.85rem; margin-bottom: 1.5rem; }
  .hero-sub br { display: none; }

  /* Search bar */
  .search-bar {
    flex-direction: column;
    border-radius: var(--radius);
    max-width: 100%;
  }
  .search-input { padding: 0.75rem 1rem; font-size: 0.95rem; }
  .search-btn {
    border-radius: 0 0 var(--radius) var(--radius);
    padding: 0.75rem;
  }

  /* Intent selector */
  .intent-options {
    flex-direction: row;
    gap: 0.5rem;
  }
  .intent-box {
    padding: 0.75rem 0.5rem;
    min-width: 80px;
  }
  .intent-name { font-size: 0.85rem; }
  .intent-hint { font-size: 0.65rem; }

  /* Steps */
  .steps { grid-template-columns: 1fr; gap: 0.75rem; }
  .step { padding: 1rem; }

  /* Result grid */
  .result-grid { grid-template-columns: 1fr; gap: 0.75rem; }
  .result-card { padding: 1rem; }
  .big-number { font-size: 1.4rem; }

  /* Result details */
  .result-details {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .detail-block { padding: 1rem; }

  /* Score/stat grids */
  .score-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .metrics-grid { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
  .metric-card { padding: 0.75rem 0.5rem; }
  .metric-value { font-size: 1.1rem; }
  .metric-label { font-size: 0.7rem; }

  /* Popular section */
  .popular-section { margin: 1rem -1rem; padding: 1.5rem 1rem; }
  .popular-card { flex-wrap: wrap; padding: 0.75rem; gap: 0.5rem; }
  .popular-info { min-width: 0; flex: 1; }
  .popular-name { font-size: 0.85rem; }
  .popular-action { width: 100%; margin-left: 0; }
  .btn-appraise { width: 100%; text-align: center; }

  /* Plan grid */
  .plan-grid { grid-template-columns: 1fr; gap: 1rem; }
  .plan-card { padding: 1.5rem; }
  .plan-features { min-height: auto; }

  /* Outcome fields */
  .outcome-fields { flex-direction: column; gap: 0.75rem; }
  .outcome-field { min-width: 100%; }

  /* Result actions */
  .result-actions { flex-direction: column; gap: 0.5rem; }
  .result-actions .btn { text-align: center; }

  /* Data table scroll */
  .data-table { display: block; overflow-x: auto; }

  /* Analytics */
  .stats-overview { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
  .stat-card { padding: 1rem; }
  .stat-value { font-size: 1.5rem; }
  .performance-grid { grid-template-columns: 1fr; }

  /* Calibration table scroll */
  .calibration-section { overflow-x: auto; }

  /* Price range */
  .price-range-section { padding: 1rem; }
  .range-legend { gap: 0.5rem; font-size: 0.65rem; }

  /* Log page */
  .log-metrics { grid-template-columns: repeat(2, 1fr); }

  /* Badges */
  .points-summary { grid-template-columns: repeat(2, 1fr); }
  .badges-grid { grid-template-columns: repeat(3, 1fr); }

  /* Footer */
  .footer-links { flex-wrap: wrap; gap: 0.75rem; }

  /* Orders */
  .order-prices { flex-direction: column; gap: 0.25rem; }

  /* Auth */
  .auth-page { padding: 0 1rem; }

  /* Section titles */
  .section-title { font-size: 1.1rem; margin-bottom: 1.5rem; }
}

/* ============================================
   Mobile (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
  .header-inner { height: 46px; }
  .logo-icon-img { width: 26px; height: 26px; }
  .logo-text { font-size: 0.9rem; }
  .logo-tagline { display: none; }

  .hero-title { font-size: 1.15rem; line-height: 1.4; }
  .hero-sub { font-size: 0.8rem; }

  .intent-options { flex-direction: column; align-items: stretch; }
  .intent-box {
    flex-direction: row;
    padding: 0.6rem 1rem;
    gap: 0.5rem;
    min-width: auto;
  }
  .intent-icon { font-size: 1.2rem; margin-bottom: 0; }

  .big-number { font-size: 1.2rem; }
  .decision-big { font-size: 1.5rem; padding: 0.2rem 1rem; }
  .result-title { font-size: 1rem; }

  .metrics-grid { grid-template-columns: 1fr 1fr 1fr; gap: 0.3rem; }
  .metric-card { padding: 0.5rem 0.25rem; }
  .metric-icon { font-size: 1rem; }
  .metric-value { font-size: 1rem; }
  .metric-label { font-size: 0.6rem; }
  .metric-hint { font-size: 0.6rem; }

  .stats-overview { grid-template-columns: 1fr 1fr 1fr; }
  .stat-value { font-size: 1.2rem; }
  .stat-label { font-size: 0.7rem; }

  .score-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }

  .detail-table td { font-size: 0.8rem; padding: 0.3rem 0; }
  .reasons-list li { font-size: 0.8rem; }
  .reasons-note { font-size: 0.65rem; }

  /* Limit orders on mobile */
  .limit-order-form .outcome-fields { flex-direction: column; }

  /* Bottom nav adjustments */
  .bottom-nav-item { font-size: 0.55rem; }
  .bottom-nav-icon { font-size: 1.1rem; }

  /* Range labels */
  .range-label { font-size: 0.6rem; }
}

/* ============================================
   Touch & Interaction Enhancements
   ============================================ */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .nav-link { padding: 0.5rem 0.75rem; min-height: 44px; display: flex; align-items: center; }
  .btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
  .search-btn { min-height: 48px; }
  .intent-box { min-height: 48px; }
  .btn-appraise { min-height: 40px; }

  /* Remove hover effects on touch */
  .popular-card:hover { transform: none; }
  .score-card:hover { transform: none; }
  .plan-card:hover { transform: none; }
}

/* ============================================
   iOS Safe Area Support
   ============================================ */
@supports (padding: env(safe-area-inset-bottom)) {
  .bottom-nav {
    padding-bottom: env(safe-area-inset-bottom);
  }
  .site-footer {
    padding-bottom: calc(60px + env(safe-area-inset-bottom));
  }
}

/* ============================================
   Dark mode media query (follows system)
   ============================================ */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1008;
    --surface: #2a1f12;
    --text: #f5f0eb;
    --text-muted: #a89580;
    --primary-light: #7c4a1a;
    --primary-bg: #2a1f12;
    --border: #3d2e1a;
    --shadow: 0 1px 3px rgba(0,0,0,.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,.25), 0 2px 4px rgba(0,0,0,.15);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.4);
  }
  .site-header {
    background: rgba(42,31,18,.85);
    backdrop-filter: blur(16px) saturate(1.5);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
    border-bottom-color: #3d2e1a;
  }
  .search-bar { background: var(--surface); border-color: var(--border); }
  .search-input { color: var(--text); }
  .intent-option input:checked + .intent-box { background: #3d2e1a; }
  .popular-section { background: linear-gradient(135deg, #2a1f12 0%, #2a1f12 100%); }
  .zone-safe { background: #064e3b; }
  .zone-normal { background: #78350f; }
  .zone-risk { background: #7f1d1d; }
  .badge-buy { background: #064e3b; }
  .badge-hold { background: #78350f; }
  .badge-skip { background: #7f1d1d; }
  .auth-form input { background: var(--surface); color: var(--text); border-color: var(--border); }
  .outcome-field input, .outcome-field select { background: var(--surface); color: var(--text); border-color: var(--border); }
  .settings-menu { background: var(--surface); border-color: var(--border); }
  .toggle-switch { background: #4b4b4b; }
  .bottom-nav {
    background: rgba(42,31,18,.88);
    backdrop-filter: blur(16px) saturate(1.5);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
    border-top-color: var(--border);
  }
  .landing-login-card {
    background: rgba(42,31,18,.85);
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
  }
  .landing-login-form input { background: rgba(26,16,8,.7); }
  .landing-login-form input:focus { background: var(--surface); }
  img { filter: brightness(0.9); }
}

/* ============================================
   Print styles
   ============================================ */
@media print {
  .site-header, .site-footer, .bottom-nav,
  .mobile-menu-btn, .mobile-overlay,
  .result-actions, .outcome-input-section,
  .limit-order-section, .how-it-works,
  .popular-section, .search-bar { display: none !important; }

  .main-content { padding: 0; max-width: 100%; }
  .result-grid { grid-template-columns: repeat(3, 1fr); }
  body { font-size: 12pt; }
}