/* ==========================================================================
   GROOVETAG MOBILE UX V3 — NATIVE MOBILE SAAS SYSTEM (≤768px)
   ========================================================================== */

@media (max-width: 768px) {
  /* --- 1. Global Touch Targets & Strict Dimensions --- */
  :root {
    --accent-green: #10b981;
    --accent-green-hover: #059669;
    --accent-green-glow: rgba(16, 185, 129, 0.35);
  }

  body, .app-container, .main-content {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: hidden !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  /* Exclude checkboxes and radios from forced 48px height */
  button, 
  input:not([type="checkbox"]):not([type="radio"]), 
  select, 
  textarea, 
  a.btn, 
  .mobile-nav-item {
    min-height: 48px !important;
    box-sizing: border-box !important;
    touch-action: manipulation;
  }

  /* Fix Checkbox & Toggle Switch sizing on Mobile */
  .checkbox-container input[type="checkbox"] {
    width: 44px !important;
    height: 24px !important;
    min-height: 24px !important;
    max-height: 24px !important;
    flex-shrink: 0 !important;
    margin: 0 !important;
  }

  .checkbox-container {
    padding: 8px 0 !important;
    min-height: auto !important;
  }

  /* Fix Segmented Control */
  .segmented-control {
    width: 100% !important;
    max-width: 100% !important;
  }

  /* --- 2. Compact Header & Layout Alignment --- */
  .content-header {
    padding: 12px 16px 8px !important;
    margin-bottom: 8px !important;
  }

  .content-header h1 {
    font-size: 20px !important;
    line-height: 1.2 !important;
    margin-bottom: 4px !important;
  }

  .content-header .subtitle {
    display: none !important; /* Hide long subtitle to save top vertical space */
  }

  .tab-viewport {
    padding: 0 12px 80px !important; /* 80px bottom space for fixed bottom nav */
  }

  .glass-card {
    padding: 16px 14px !important;
    border-radius: 16px !important;
    margin-bottom: 12px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .grid-2, .grid-3, .grid-4, .grid-5 {
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
  }

  /* Hide empty result placeholder card on mobile when not populated */
  #creation-result:not(.has-generated-result) {
    display: none !important;
  }

  /* --- 3. Mobile Bottom Navigation (Strict 5 Items) --- */
  .mobile-nav {
    display: grid !important;
    grid-template-columns: repeat(5, 1fr) !important;
    align-items: center !important;
    height: 64px !important;
    background: rgba(10, 15, 30, 0.94) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.08) !important;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.6) !important;
    padding: 0 4px !important;
    z-index: 999 !important;
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
  }

  .mobile-nav-item {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 6px 0 !important;
    color: var(--text-muted) !important;
    text-decoration: none !important;
    font-size: 10px !important;
    font-weight: 600 !important;
    border-radius: 8px !important;
    transition: all 0.2s ease !important;
  }

  .mobile-nav-item.active {
    color: var(--accent-green) !important;
  }

  /* Central Scan Button (#3 item) */
  .mobile-nav-item.nav-scan-center {
    position: relative !important;
    top: -12px !important;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    color: #ffffff !important;
    width: 52px !important;
    height: 52px !important;
    border-radius: 50% !important;
    box-shadow: 0 8px 25px var(--accent-green-glow) !important;
    margin: 0 auto !important;
    border: 3px solid #030712 !important;
  }

  .mobile-nav-item.nav-scan-center svg {
    width: 22px !important;
    height: 22px !important;
  }

  .mobile-nav-item.nav-scan-center span {
    font-size: 9px !important;
    margin-top: 1px !important;
  }

  /* --- 4. QR Scanner 5-State Modal UI --- */
  .qr-modal-state {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 10px 0;
  }

  .qr-modal-state.active {
    display: flex;
    animation: fadeIn 0.3s ease-out;
  }

  .scanner-viewfinder {
    position: relative;
    width: 100%;
    max-width: 280px;
    height: 280px;
    margin: 15px auto;
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    border: 2px solid rgba(16, 185, 129, 0.5);
    box-shadow: 0 0 30px var(--accent-green-glow);
  }

  .scanner-viewfinder::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 180px;
    height: 180px;
    transform: translate(-50%, -50%);
    border: 2px dashed rgba(16, 185, 129, 0.8);
    border-radius: 12px;
    z-index: 10;
    pointer-events: none;
  }

  /* --- 5. Analytics Mobile Architecture --- */
  .analytics-hero-kpi {
    background: rgba(16, 185, 129, 0.06) !important;
    border: 1px solid rgba(16, 185, 129, 0.25) !important;
    border-radius: 16px !important;
    padding: 16px 20px !important;
    margin-bottom: 12px !important;
    text-align: left !important;
  }

  .analytics-hero-kpi .value {
    font-size: 32px !important;
    font-weight: 800 !important;
    color: #f3f4f6 !important;
    line-height: 1.1 !important;
  }

  .analytics-hero-kpi .trend {
    font-size: 13px !important;
    color: var(--accent-green) !important;
    font-weight: 600 !important;
    margin-top: 4px !important;
  }

  .analytics-compact-grid {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
    margin-bottom: 16px !important;
  }

  .analytics-compact-card {
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    border-radius: 12px !important;
    padding: 12px 14px !important;
    text-align: left !important;
  }

  .analytics-compact-card .label {
    font-size: 11px !important;
    color: var(--text-muted) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
  }

  .analytics-compact-card .number {
    font-size: 20px !important;
    font-weight: 700 !important;
    color: #f3f4f6 !important;
    margin-top: 2px !important;
  }

  /* --- 6. NFC Catalog Single Column & Category Pills --- */
  .nfc-catalog-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .category-pills-scroll {
    display: flex !important;
    gap: 8px !important;
    overflow-x: auto !important;
    white-space: nowrap !important;
    padding-bottom: 8px !important;
    margin-bottom: 16px !important;
    -webkit-overflow-scrolling: touch !important;
  }

  .category-pills-scroll::-webkit-scrollbar {
    display: none;
  }

  .category-pill {
    flex-shrink: 0 !important;
    padding: 8px 14px !important;
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    border-radius: 20px !important;
    color: var(--text-muted) !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
  }

  .category-pill.active {
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: var(--accent-green) !important;
    color: var(--accent-green) !important;
  }
}

/* Modal Backdrop Scroll Lock for Mobile Viewports */
body.modal-open {
  overflow: hidden !important;
  touch-action: none !important;
}

body.modal-open .modal-overlay {
  overflow-y: auto !important;
  -webkit-overflow-scrolling: touch !important;
  touch-action: pan-y !important;
}

body.modal-open .modal-content {
  touch-action: pan-y !important;
}