:root {
      /* CI Palette from Workshop Design Idea */
      --primary-teal: #008da5;
      --primary-cyan: #00b4d8;
      --primary-blue: #026cb5;
      --dark-navy: #0a2540;
      --text-main: #0a2540;
      --text-muted: #577083;
      --accent-orange: #f58220;
      --accent-amber: #fca311;
      --accent-green: #10b981;
      --bg-mint-light: #f0faf9;
      --bg-mint-card: #e4f7f4;
      --card-bg: #ffffff;
      --border-soft: #e2ecf2;
      --border-focus: #00b4d8;
      --shadow-card: 0 16px 40px rgba(0, 141, 165, 0.09);
      --shadow-btn: 0 8px 24px rgba(0, 141, 165, 0.28);
      --btn-gradient: linear-gradient(90deg, #00c0d8 0%, #008da5 50%, #006eb4 100%);
      --btn-gradient-hover: linear-gradient(90deg, #02d4ee 0%, #009cb7 50%, #027cc9 100%);
      --radius-input: 16px;
      --radius-card: 26px;
      --radius-pill: 9999px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: 'Prompt', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      -webkit-tap-highlight-color: transparent;
    }

    body {
      background: linear-gradient(180deg, #f7fdfc 0%, #e8f8f5 50%, #d8f5ef 100%);
      color: var(--text-main);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      position: relative;
      overflow-x: hidden;
      padding-bottom: 30px;
    }

    /* Decorative Background Elements matching mockup */
    .bg-decorations {
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      overflow: hidden;
    }

    .bg-blob-1 {
      position: absolute;
      top: -80px;
      left: -80px;
      width: 260px;
      height: 260px;
      background: radial-gradient(circle, rgba(0, 180, 216, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
    }

    .bg-blob-2 {
      position: absolute;
      bottom: -60px;
      right: -60px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(0, 141, 165, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
    }

    .bg-dots {
      position: absolute;
      right: 12px;
      top: 40%;
      width: 48px;
      height: 80px;
      opacity: 0.65;
      background-image: radial-gradient(#f58220 2px, transparent 2px);
      background-size: 12px 12px;
    }

    /* Screen Selector Bar (Dev & Admin Navigation) */
    .demo-bar {
      position: sticky;
      top: 0;
      z-index: 1000;
      width: 100%;
      background: rgba(10, 37, 64, 0.94);
      backdrop-filter: blur(12px);
      color: white;
      padding: 8px 16px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      font-size: 0.82rem;
      box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    }

    .demo-nav-tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .demo-btn {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.22);
      color: white;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      font-size: 0.8rem;
      cursor: pointer;
      transition: all 0.2s ease;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    .demo-btn:hover {
      background: rgba(255, 255, 255, 0.25);
    }

    .demo-btn.active {
      background: var(--accent-orange);
      border-color: var(--accent-orange);
      font-weight: 600;
      box-shadow: 0 2px 8px rgba(245, 130, 32, 0.4);
    }

    .demo-btn.admin-btn {
      background: #0284c7;
      border-color: #38bdf8;
    }

    .demo-btn.admin-btn:hover {
      background: #0369a1;
    }

    .demo-btn.admin-btn.active {
      background: #f58220;
      border-color: #f58220;
    }

    .view-mode-toggle {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.78rem;
      color: #b0c9dd;
    }

    .view-mode-btn {
      background: transparent;
      border: 1px solid #4a6b8c;
      color: white;
      padding: 3px 8px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 0.75rem;
    }

    .view-mode-btn.active {
      background: #00b4d8;
      border-color: #00b4d8;
    }

    /* App Container */
    .app-viewport {
      width: 100%;
      max-width: 440px;
      min-height: calc(100vh - 50px);
      margin: 0 auto;
      position: relative;
      z-index: 10;
      display: flex;
      flex-direction: column;
      padding: 16px 20px 24px;
      transition: max-width 0.3s ease;
    }

    .app-viewport.desktop-mode {
      max-width: 820px;
    }

    .app-viewport.admin-mode {
      max-width: 1440px;
    }

    /* Brand Header Images */
    .workshop-header-logo {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      margin-bottom: 8px;
    }

    .brand-header-img {
      width: 100%;
      max-width: 330px;
      height: auto;
      display: block;
      margin: 0 auto 4px;
      object-fit: contain;
    }

    .art-img {
      width: 100%;
      max-width: 480px;
      height: auto;
      display: block;
      margin: 0 auto;
      object-fit: contain;
      pointer-events: none;
    }

    /* Fallback Brand Header */
    .logo-row {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
    }

    .b-symbol {
      width: 54px;
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .logo-text-col {
      text-align: left;
    }

    .logo-main-title {
      font-size: 1.45rem;
      font-weight: 800;
      line-height: 1.05;
      color: var(--dark-navy);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .gen2-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent-orange);
      color: #ffffff;
      font-size: 0.68rem;
      font-weight: 800;
      line-height: 1;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      text-align: center;
      box-shadow: 0 4px 10px rgba(245, 130, 32, 0.35);
      flex-direction: column;
    }

    .gen2-badge span:first-child {
      font-size: 0.55rem;
      letter-spacing: 0.5px;
    }

    .gen2-badge span:last-child {
      font-size: 0.95rem;
      font-weight: 900;
    }

    .logo-workshop-sub {
      color: var(--accent-orange);
      font-size: 0.88rem;
      font-weight: 800;
      letter-spacing: 1.5px;
      margin-top: 1px;
    }

    .header-tagline {
      font-size: 0.85rem;
      color: var(--dark-navy);
      font-weight: 500;
      margin-top: 4px;
      position: relative;
      display: inline-block;
    }

    .header-tagline::after {
      content: "";
      position: absolute;
      bottom: -3px;
      left: 15%;
      right: 15%;
      height: 2px;
      background: #7bd3df;
      border-radius: 2px;
    }

    /* Day Selector Pills Bar (1-2 ตุลาคม 2569) */
    .day-selector-container {
      background: #ffffff;
      border: 1.5px solid #d4eff5;
      border-radius: var(--radius-pill);
      padding: 4px;
      display: flex;
      gap: 4px;
      margin: 10px auto 14px;
      width: 100%;
      max-width: 380px;
      box-shadow: 0 4px 14px rgba(0, 141, 165, 0.08);
    }

    .day-btn {
      flex: 1;
      padding: 8px 12px;
      border: none;
      background: transparent;
      border-radius: var(--radius-pill);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: all 0.2s ease;
    }

    .day-btn.active {
      background: var(--btn-gradient);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(0, 141, 165, 0.3);
    }

    .day-badge-small {
      background: rgba(255, 255, 255, 0.28);
      font-size: 0.72rem;
      padding: 1px 6px;
      border-radius: 10px;
    }

    /* Screen Views - Transitions */
    .screen-view {
      display: none;
      flex-direction: column;
      animation: fadeInSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
      width: 100%;
    }

    .screen-view.active {
      display: flex;
    }

    @keyframes fadeInSlideUp {
      from {
        opacity: 0;
        transform: translateY(14px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* Sparkle Rays */
    .sunburst-rays {
      display: flex;
      justify-content: center;
      gap: 4px;
      margin-bottom: 6px;
    }

    .sunburst-rays span {
      display: block;
      width: 3.5px;
      height: 10px;
      background: var(--accent-orange);
      border-radius: 4px;
    }

    .sunburst-rays span:nth-child(1) { transform: rotate(-25deg); height: 8px; }
    .sunburst-rays span:nth-child(2) { transform: rotate(0deg); height: 12px; }
    .sunburst-rays span:nth-child(3) { transform: rotate(25deg); height: 8px; }

    /* Screen 1: Welcome */
    .welcome-card-hero {
      text-align: center;
      margin-top: 6px;
      position: relative;
    }

    .welcome-title-small {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--dark-navy);
      line-height: 1.3;
    }

    .welcome-title-highlight {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary-blue);
      margin-top: 4px;
      line-height: 1.3;
    }

    .date-pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1.5px solid #d4edf5;
      padding: 6px 18px;
      border-radius: var(--radius-pill);
      color: var(--dark-navy);
      font-size: 0.95rem;
      font-weight: 600;
      margin: 14px auto 10px;
      box-shadow: 0 4px 12px rgba(0, 141, 165, 0.08);
    }

    .welcome-prompt-text {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 400;
      margin-bottom: 16px;
    }

    /* Common Buttons */
    .btn-cta-primary {
      background: var(--btn-gradient);
      color: #ffffff;
      border: none;
      padding: 14px 28px;
      border-radius: var(--radius-pill);
      font-size: 1.15rem;
      font-weight: 600;
      width: 100%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      box-shadow: var(--shadow-btn);
      transition: all 0.25s ease;
      text-decoration: none;
    }

    .btn-cta-primary:hover {
      background: var(--btn-gradient-hover);
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(0, 141, 165, 0.38);
    }

    .btn-cta-primary:active {
      transform: translateY(0);
    }

    .btn-circle-arrow {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      font-weight: 700;
      flex-shrink: 0;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    }

    .btn-cta-secondary {
      background: #ffffff;
      color: var(--primary-blue);
      border: 1.5px solid #00b4d8;
      padding: 12px 24px;
      border-radius: var(--radius-pill);
      font-size: 1.05rem;
      font-weight: 600;
      width: 100%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      transition: all 0.2s ease;
      text-decoration: none;
      margin-top: 10px;
    }

    .btn-cta-secondary:hover {
      background: #f0faff;
      border-color: var(--primary-blue);
    }

    .link-sub-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      color: var(--primary-teal);
      font-size: 0.95rem;
      font-weight: 500;
      margin-top: 14px;
      text-decoration: none;
      cursor: pointer;
      transition: color 0.2s;
    }

    .link-sub-action:hover {
      color: var(--primary-blue);
      text-decoration: underline;
    }

    .link-sub-action strong {
      font-weight: 700;
      text-decoration: underline;
    }

    /* Screen 2 & 4: Form Cards */
    .form-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 24px 20px;
      box-shadow: var(--shadow-card);
      border: 1px solid #dff1f2;
      position: relative;
      margin-top: 10px;
    }

    .screen-header-text {
      text-align: center;
      margin-bottom: 12px;
    }

    .screen-header-text h2 {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--dark-navy);
      line-height: 1.25;
    }

    .screen-header-text p {
      color: var(--text-muted);
      font-size: 0.92rem;
      margin-top: 4px;
    }

    .form-group {
      margin-bottom: 16px;
      position: relative;
    }

    .form-label {
      display: block;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--dark-navy);
      margin-bottom: 6px;
    }

    .form-label .req {
      color: #e53e3e;
      font-weight: 700;
    }

    .form-label-hint {
      font-size: 0.78rem;
      font-weight: 400;
      color: var(--text-muted);
      margin-left: 4px;
    }

    .input-wrapper {
      position: relative;
      display: flex;
      align-items: center;
    }

    .input-icon {
      position: absolute;
      left: 14px;
      color: #8da4b5;
      width: 20px;
      height: 20px;
      pointer-events: none;
    }

    .form-input {
      width: 100%;
      height: 50px;
      padding: 12px 16px 12px 44px;
      background: #ffffff;
      border: 1.5px solid var(--border-soft);
      border-radius: var(--radius-input);
      font-size: 0.96rem;
      color: var(--text-main);
      transition: all 0.2s ease;
      outline: none;
    }

    .form-input::placeholder {
      color: #a4b8c7;
      font-weight: 400;
    }

    .form-input:focus {
      border-color: var(--border-focus);
      box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.18);
    }

    .form-input.error {
      border-color: #e53e3e;
      background-color: #fff8f8;
    }

    .error-msg {
      font-size: 0.78rem;
      color: #e53e3e;
      margin-top: 4px;
      display: none;
    }

    .error-msg.visible {
      display: block;
    }

    .info-callout {
      display: flex;
      align-items: center;
      gap: 10px;
      background: #f1f9fc;
      border-radius: 12px;
      padding: 10px 14px;
      margin: 16px 0 20px;
      color: #4b6b82;
      font-size: 0.85rem;
    }

    .info-callout svg {
      flex-shrink: 0;
      color: var(--primary-teal);
    }


    /* Check-in Pass (downloadable image after successful check-in) */
    .ticket-pass-card {
      background: #ffffff;
      border: 1.5px solid #d4eff5;
      border-radius: 22px;
      padding: 16px;
      margin: 14px 0 16px;
      box-shadow: var(--shadow-card);
      text-align: center;
    }

    .ticket-pass-kicker {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      background: #e6f8fb;
      color: var(--primary-teal);
      font-size: 0.78rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .ticket-pass-title {
      font-size: 1.05rem;
      color: var(--dark-navy);
      font-weight: 800;
      margin-bottom: 5px;
    }

    .ticket-pass-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 12px;
    }

    .ticket-pass-img-wrap {
      max-width: 300px;
      margin: 0 auto 14px;
      border-radius: 16px;
      overflow: hidden;
      background: #f8fafc;
      box-shadow: 0 8px 24px rgba(10, 37, 64, 0.10);
    }

    .ticket-pass-img {
      display: block;
      width: 100%;
      height: auto;
    }

    .ticket-pass-actions {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .ticket-pass-actions .btn-cta-primary,
    .ticket-pass-actions .btn-cta-secondary {
      flex: 1 1 160px;
      margin-top: 0;
      font-size: 0.92rem;
      padding: 11px 14px;
    }

    /* Screen 3: Success Screen */
    .success-badge-wrap {
      display: flex;
      justify-content: center;
      margin: 12px 0 10px;
      position: relative;
    }

    .success-circle-icon {
      width: 68px;
      height: 68px;
      border-radius: 50%;
      background: linear-gradient(135deg, #10b981 0%, #00b4d8 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 24px rgba(16, 185, 129, 0.35);
      color: white;
    }

    .success-headline {
      text-align: center;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--dark-navy);
      line-height: 1.35;
      margin-bottom: 4px;
    }

    .success-subtitle {
      text-align: center;
      color: var(--text-muted);
      font-size: 0.92rem;
      margin-bottom: 14px;
    }

    /* Souvenir Claim Card (เฉพาะวันที่ 1 ต.ค. 2569) */
    .souvenir-claim-card {
      background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
      border: 2px dashed #f97316;
      border-radius: 20px;
      padding: 16px 18px;
      margin-bottom: 16px;
      box-shadow: 0 8px 24px rgba(249, 115, 22, 0.15);
      text-align: center;
      position: relative;
      animation: popIn 0.3s ease;
    }

    @keyframes popIn {
      from { transform: scale(0.96); opacity: 0; }
      to { transform: scale(1); opacity: 1; }
    }

    .souvenir-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      background: #f97316;
      color: white;
      font-size: 0.76rem;
      font-weight: 700;
      padding: 3px 12px;
      border-radius: var(--radius-pill);
      margin-bottom: 8px;
    }

    .souvenir-title {
      font-size: 1.12rem;
      font-weight: 800;
      color: #9a3412;
      margin-bottom: 4px;
    }

    .souvenir-desc {
      font-size: 0.88rem;
      color: #c2410c;
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .btn-claim-souvenir {
      background: linear-gradient(90deg, #f97316 0%, #ea580c 100%);
      color: white;
      border: none;
      padding: 12px 24px;
      border-radius: var(--radius-pill);
      font-size: 1.05rem;
      font-weight: 700;
      cursor: pointer;
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      box-shadow: 0 6px 18px rgba(234, 88, 12, 0.35);
      transition: all 0.2s ease;
    }

    .btn-claim-souvenir:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(234, 88, 12, 0.45);
    }

    .souvenir-claimed-status {
      background: #ffffff;
      border-radius: 12px;
      padding: 10px 14px;
      border: 1.5px solid #fed7aa;
      color: #9a3412;
      font-size: 0.9rem;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .souvenir-confirmed-status {
      background: #ecfdf5;
      border-radius: 12px;
      padding: 10px 14px;
      border: 1.5px solid #6ee7b7;
      color: #065f46;
      font-size: 0.92rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    /* SharePoint Document Card */
    .link-download-card {
      background: #ffffff;
      border: 1.5px solid #d4eff5;
      border-radius: 18px;
      padding: 14px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
      box-shadow: 0 6px 18px rgba(0, 141, 165, 0.08);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .link-download-card:hover {
      border-color: var(--primary-cyan);
      transform: translateY(-1px);
    }

    .link-card-left {
      display: flex;
      align-items: center;
      gap: 12px;
      flex: 1;
      min-width: 0;
    }

    .doc-icon-badge {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: #e6f6fb;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-blue);
      flex-shrink: 0;
    }

    .link-card-text {
      flex: 1;
      min-width: 0;
    }

    .link-card-text strong {
      display: block;
      font-size: 1rem;
      color: var(--dark-navy);
      font-weight: 700;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .link-card-text span {
      font-size: 0.78rem;
      color: var(--text-muted);
      display: block;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .link-chain-icon {
      color: var(--primary-teal);
      flex-shrink: 0;
    }

    .attendee-badge-card {
      background: linear-gradient(135deg, #f0faf9 0%, #e0f6f5 100%);
      border: 1px dashed #74cfd8;
      border-radius: 16px;
      padding: 14px 16px;
      margin-bottom: 16px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.88rem;
    }

    .attendee-row-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .attendee-name {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--dark-navy);
    }

    .days-checkin-history {
      display: flex;
      flex-direction: column;
      gap: 4px;
      background: rgba(255, 255, 255, 0.7);
      border-radius: 10px;
      padding: 8px 12px;
      font-size: 0.82rem;
    }

    .day-record-row {
      display: flex;
      justify-content: space-between;
      color: #334e68;
    }

    /* Screen 4: Re-login Preview Card */
    .doc-preview-card {
      background: #f7fdfd;
      border: 1.5px solid #d4eff5;
      border-radius: 18px;
      padding: 14px 16px;
      display: flex;
      align-items: center;
      gap: 14px;
      margin-top: 18px;
    }

    .doc-preview-text strong {
      display: block;
      font-size: 0.95rem;
      color: var(--dark-navy);
      font-weight: 700;
    }

    .doc-preview-text p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.35;
      margin-top: 2px;
    }

    /* Screen 5: Survey Feature */
    .survey-card-container {
      background: #ffffff;
      border-radius: var(--radius-card);
      padding: 26px 20px;
      box-shadow: var(--shadow-card);
      border: 1px solid #dff1f2;
      text-align: center;
      margin-top: 8px;
    }

    .survey-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #e0f2fe;
      color: #0284c7;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      font-size: 0.82rem;
      font-weight: 600;
      margin-bottom: 14px;
    }

    /* Admin Dashboard Screen */
    #screen-admin .demo-btn {
      color: var(--dark-navy);
      background: var(--bg-mint-light);
      border-color: #b8dce3;
    }

    #screen-admin .demo-btn:hover {
      background: var(--bg-mint-card);
    }

    #screen-admin .demo-btn.active {
      background: var(--accent-orange);
      border-color: var(--accent-orange);
    }

    .admin-container {
      background: #ffffff;
      border-radius: var(--radius-card);
      padding: 22px 18px;
      box-shadow: var(--shadow-card);
      border: 1px solid #dff1f2;
      margin-top: 8px;
    }

    .admin-stats-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
      margin-bottom: 18px;
    }

    @media (min-width: 640px) {
      .admin-stats-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .stat-card {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 16px;
      padding: 12px;
      text-align: center;
    }

    .stat-card.highlight {
      background: #f0fdf4;
      border-color: #bbf7d0;
    }

    .stat-card.orange {
      background: #fff7ed;
      border-color: #fed7aa;
    }

    .stat-num {
      font-size: 1.55rem;
      font-weight: 800;
      color: var(--dark-navy);
      line-height: 1.2;
    }

    .stat-label {
      font-size: 0.78rem;
      color: var(--text-muted);
      margin-top: 2px;
    }

    .admin-actions-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 16px;
    }

    .btn-export-csv {
      background: #0284c7;
      color: white;
      border: none;
      padding: 10px 18px;
      border-radius: var(--radius-pill);
      font-size: 0.9rem;
      font-weight: 600;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
      transition: all 0.2s ease;
    }

    .btn-export-csv:hover {
      background: #0369a1;
      transform: translateY(-1px);
    }

    .btn-admin-add-registration {
      background: var(--primary-teal);
      font-family: inherit;
    }

    .btn-admin-add-registration:hover {
      background: #006f82;
    }

    .search-input-wrap {
      flex: 1;
      min-width: 220px;
      position: relative;
    }

    .search-input {
      width: 100%;
      height: 42px;
      padding: 8px 14px 8px 36px;
      border: 1.5px solid var(--border-soft);
      border-radius: var(--radius-pill);
      font-size: 0.88rem;
      outline: none;
    }

    .search-input:focus {
      border-color: var(--primary-cyan);
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border: 1px solid #e2ecf2;
      border-radius: 16px;
      margin-top: 10px;
    }

    .admin-table {
      width: 100%;
      border-collapse: collapse;
      table-layout: fixed;
      font-size: 0.85rem;
      text-align: left;
      min-width: 1328px;
    }

    .admin-table th:nth-child(2) { width: 190px; }
    .admin-table th:nth-child(3) { width: 220px; }
    .admin-table th:nth-child(4),
    .admin-table th:nth-child(5) { width: 135px; }
    .admin-table th:nth-child(6) { width: 160px; }
    .admin-table th:nth-child(7) { width: 260px; }
    .admin-table th:nth-child(8) { width: 180px; }

    .admin-table th {
      background: #f1f7fa;
      color: var(--dark-navy);
      font-weight: 700;
      padding: 12px 14px;
      border-bottom: 1.5px solid #d4eff5;
      white-space: nowrap;
    }

    .admin-table td {
      padding: 12px 14px;
      border-bottom: 1px solid #eef3f7;
      color: #334e68;
      vertical-align: top;
      overflow-wrap: anywhere;
    }

    .admin-table tr:hover td {
      background: #fbfdfd;
    }

    .btn-confirm-souvenir {
      background: #10b981;
      color: white;
      border: none;
      padding: 6px 12px;
      border-radius: var(--radius-pill);
      font-size: 0.78rem;
      font-weight: 600;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: all 0.2s;
    }

    .btn-confirm-souvenir:hover {
      background: #059669;
    }

    .btn-undo-souvenir {
      background: #f1f5f9;
      color: #64748b;
      border: 1px solid #cbd5e1;
      padding: 4px 8px;
      border-radius: 6px;
      font-size: 0.72rem;
      cursor: pointer;
    }


    /* Admin user management */
    .admin-user-actions {
      display: flex;
      flex-direction: column;
      gap: 6px;
      min-width: 145px;
    }

    .btn-admin-edit,
    .btn-admin-delete {
      width: 100%;
      border: none;
      border-radius: 10px;
      padding: 7px 10px;
      font-family: inherit;
      font-size: 0.76rem;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.18s ease;
    }

    .btn-admin-edit {
      background: #e0f2fe;
      color: #0369a1;
      border: 1px solid #bae6fd;
    }

    .btn-admin-edit:hover {
      background: #bae6fd;
    }

    .btn-admin-delete {
      background: #fff1f2;
      color: #be123c;
      border: 1px solid #fecdd3;
    }

    .btn-admin-delete:hover {
      background: #ffe4e6;
    }

    .admin-modal-backdrop {
      position: fixed;
      inset: 0;
      z-index: 10000;
      background: rgba(15, 23, 42, 0.48);
      display: none;
      align-items: center;
      justify-content: center;
      padding: 18px;
      backdrop-filter: blur(4px);
    }

    .admin-modal-backdrop.show {
      display: flex;
    }

    .admin-edit-modal {
      width: min(520px, 100%);
      max-height: 90vh;
      overflow-y: auto;
      background: #fff;
      border-radius: 22px;
      box-shadow: 0 24px 70px rgba(15, 23, 42, 0.26);
      padding: 22px;
      border: 1px solid #dbeafe;
    }

    .admin-modal-header {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: flex-start;
      margin-bottom: 16px;
    }

    .admin-modal-title {
      color: var(--dark-navy);
      font-size: 1.12rem;
      font-weight: 800;
      margin: 0;
    }

    .admin-modal-subtitle {
      color: var(--text-muted);
      font-size: 0.78rem;
      margin-top: 3px;
      line-height: 1.4;
    }

    .admin-modal-close {
      border: none;
      background: #f1f5f9;
      color: #475569;
      width: 34px;
      height: 34px;
      border-radius: 50%;
      cursor: pointer;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .admin-modal-actions {
      display: flex;
      gap: 8px;
      margin-top: 18px;
    }

    .admin-modal-actions button {
      flex: 1;
    }

    .admin-registration-modal .form-input {
      padding-left: 14px;
    }

    .admin-registration-modal button:disabled,
    .admin-registration-modal input:disabled,
    .btn-admin-add-registration:disabled {
      opacity: 0.65;
      cursor: not-allowed;
      transform: none;
    }

    .admin-registration-error {
      padding: 10px 12px;
      border: 1px solid #fecaca;
      border-radius: 12px;
      background: #fff7f7;
    }

    @media (max-width: 420px) {
      .admin-registration-modal .admin-modal-actions {
        flex-direction: column-reverse;
      }
    }

    /* Bottom Artwork & Illustrations */
    .bottom-illustration-wrap {
      margin-top: auto;
      padding-top: 16px;
      text-align: center;
      position: relative;
    }

    /* Toast Notification */
    .toast-msg {
      position: fixed;
      bottom: 24px;
      left: 50%;
      transform: translateX(-50%) translateY(80px);
      background: var(--dark-navy);
      color: white;
      padding: 10px 22px;
      border-radius: var(--radius-pill);
      font-size: 0.9rem;
      box-shadow: 0 8px 24px rgba(0,0,0,0.25);
      z-index: 9999;
      opacity: 0;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      display: flex;
      align-items: center;
      gap: 8px;
      pointer-events: none;
      max-width: 90%;
      text-align: center;
    }

    .toast-msg.show {
      transform: translateX(-50%) translateY(0);
      opacity: 1;
    }


    /* ===== Production / Accessibility Improvements ===== */
    /* Participant-facing production mode hides developer controls by default. */
    .demo-bar { display: none; }
    body.dev-mode .demo-bar { display: flex; }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(0, 180, 216, 0.35);
      outline-offset: 3px;
    }

    .btn-cta-primary[disabled],
    .btn-cta-secondary[disabled] {
      opacity: 0.65;
      cursor: not-allowed;
      transform: none;
      box-shadow: none;
    }

    .screen-view[aria-hidden="true"] { display: none; }

    .sr-only {
      position: absolute !important;
      width: 1px !important;
      height: 1px !important;
      padding: 0 !important;
      margin: -1px !important;
      overflow: hidden !important;
      clip: rect(0, 0, 0, 0) !important;
      white-space: nowrap !important;
      border: 0 !important;
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }

  

    /* Consultation Registration Feature */
    .consultation-card {
      display: none;
      background: linear-gradient(135deg, #effcf9 0%, #eef8ff 100%);
      border: 1.5px solid #a7e5df;
      border-radius: 22px;
      padding: 18px;
      margin: 4px 0 18px;
      box-shadow: 0 10px 28px rgba(0, 141, 165, 0.12);
      position: relative;
      overflow: hidden;
    }
    .consultation-card::after {
      content: "";
      position: absolute;
      width: 120px;
      height: 120px;
      border-radius: 50%;
      background: rgba(0, 180, 216, 0.08);
      right: -45px;
      top: -45px;
      pointer-events: none;
    }
    .consultation-kicker {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #fff7ed;
      color: #c2410c;
      border: 1px solid #fed7aa;
      border-radius: var(--radius-pill);
      padding: 4px 12px;
      font-size: 0.78rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .consultation-title {
      color: var(--dark-navy);
      font-size: 1.15rem;
      line-height: 1.4;
      font-weight: 800;
      margin-bottom: 6px;
      position: relative;
      z-index: 1;
    }
    .consultation-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 12px;
    }
    .consultation-meta span {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      background: rgba(255,255,255,0.88);
      border: 1px solid #d4eff5;
      border-radius: var(--radius-pill);
      padding: 5px 10px;
      color: #334e68;
      font-size: 0.8rem;
      font-weight: 600;
    }
    .consultation-desc {
      color: var(--text-muted);
      font-size: 0.88rem;
      line-height: 1.55;
      margin-bottom: 14px;
    }
    .consultation-form-wrap {
      display: none;
      background: #ffffff;
      border: 1px solid #dbeef2;
      border-radius: 18px;
      padding: 16px;
      margin-top: 14px;
    }
    .consultation-form-wrap.open { display: block; }
    .consultation-form-wrap .form-group { margin-bottom: 13px; }
    .upload-choice {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      margin-bottom: 12px;
    }
    .upload-choice label {
      cursor: pointer;
      border: 1.5px solid #dceaf0;
      border-radius: 14px;
      padding: 10px 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 7px;
      font-size: 0.85rem;
      color: #425f73;
      font-weight: 600;
      background: #fff;
    }
    .upload-choice label:has(input:checked) {
      border-color: var(--primary-cyan);
      background: #f0fbfd;
      color: var(--primary-blue);
    }
    .upload-choice input { accent-color: var(--primary-teal); }
    .file-input-box {
      border: 1.5px dashed #9edbe2;
      background: #f8fdfd;
      border-radius: 14px;
      padding: 13px;
    }
    .file-input-box input[type="file"] {
      width: 100%;
      font-family: inherit;
      font-size: 0.82rem;
      color: var(--text-muted);
    }
    .file-help {
      display: block;
      font-size: 0.73rem;
      color: #7890a1;
      margin-top: 7px;
      line-height: 1.4;
    }
    .consultation-success {
      display: none;
      background: #ecfdf5;
      border: 1.5px solid #86efac;
      border-radius: 16px;
      padding: 13px 14px;
      color: #065f46;
      font-size: 0.88rem;
      line-height: 1.5;
      font-weight: 600;
      margin-top: 12px;
    }
    .consultation-success.show { display: block; }

    /* Admin login / back-office access */
    .admin-entry-wrap {
      margin-top: 18px;
      text-align: center;
    }

    .admin-entry-link {
      background: transparent;
      border: 0;
      color: #6b8395;
      font-size: 0.78rem;
      cursor: pointer;
      text-decoration: underline;
      text-underline-offset: 3px;
      font-family: inherit;
      padding: 8px 12px;
    }

    .admin-entry-link:hover {
      color: var(--primary-blue);
    }

    .admin-login-card {
      background: #ffffff;
      border-radius: var(--radius-card);
      padding: 26px 20px;
      box-shadow: var(--shadow-card);
      border: 1px solid #dff1f2;
      margin-top: 10px;
    }

    .admin-lock-icon {
      width: 64px;
      height: 64px;
      border-radius: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px;
      background: linear-gradient(135deg, #e0f7fa 0%, #eaf2ff 100%);
      color: var(--primary-blue);
      font-size: 1.75rem;
      box-shadow: 0 8px 20px rgba(2, 108, 181, 0.12);
    }

    .admin-login-note {
      margin-top: 14px;
      padding: 10px 12px;
      border-radius: 12px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      color: #64748b;
      font-size: 0.78rem;
      line-height: 1.5;
      text-align: left;
    }

    .admin-logout-btn {
      border: 1px solid #fecaca;
      background: #fff7f7;
      color: #b91c1c;
      padding: 8px 14px;
      border-radius: var(--radius-pill);
      font-family: inherit;
      font-size: 0.82rem;
      font-weight: 600;
      cursor: pointer;
    }

    .admin-logout-btn:hover {
      background: #fee2e2;
    }

    .admin-toolbar-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
      flex-wrap: wrap;
    }

    .consultation-admin-badge {
      display: inline-block;
      background: #e0f2fe;
      color: #0369a1;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 12px;
      font-size: 0.73rem;
    }
    .btn-consult-file {
      margin-top: 5px;
      border: 1px solid #7dd3fc;
      background: #f0f9ff;
      color: #0369a1;
      border-radius: 8px;
      padding: 4px 7px;
      cursor: pointer;
      font-size: 0.72rem;
      font-weight: 600;
    }
    @media (max-width: 380px) {
      .upload-choice { grid-template-columns: 1fr; }
    }

    /* Admin adapts to the browser width independently of the participant preview. */
    body.admin-view .view-mode-toggle { display: none; }

    @media (min-width: 1024px) {
      .app-viewport.admin-mode,
      .app-viewport.admin-login-mode {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-content: start;
        align-items: center;
        gap: 20px 24px;
        padding: 20px 24px 32px;
      }

      .app-viewport.admin-mode { max-width: 1680px; }
      .app-viewport.admin-login-mode { max-width: 1120px; }

      .admin-mode > .workshop-header-logo,
      .admin-login-mode > .workshop-header-logo {
        align-items: flex-start;
        margin: 0;
      }

      .admin-mode .brand-header-img,
      .admin-login-mode .brand-header-img {
        width: 200px;
        margin: 0;
      }

      .admin-mode > .day-selector-container,
      .admin-login-mode > .day-selector-container {
        width: 440px;
        max-width: 100%;
        margin: 0;
        justify-self: end;
      }

      #screen-admin,
      #screen-admin-login {
        grid-column: 1 / -1;
        min-width: 0;
      }

      #screen-admin > .sunburst-rays,
      #screen-admin-login > .sunburst-rays { display: none; }

      #screen-admin > .screen-header-text,
      #screen-admin-login > .screen-header-text {
        text-align: left;
        margin: 0 0 18px;
      }

      #screen-admin .admin-container {
        margin: 0;
        padding: 24px;
        border-radius: 18px;
        min-width: 0;
      }

      #screen-admin .admin-stats-grid {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 14px;
      }

      #screen-admin .stat-card {
        padding: 16px 12px;
        border-radius: 12px;
      }

      #screen-admin .admin-actions-bar {
        flex-wrap: nowrap;
        gap: 12px;
      }

      #screen-admin .search-input-wrap { min-width: 0; }

      #screen-admin .btn-export-csv,
      #screen-admin .search-input,
      #screen-admin .admin-logout-btn {
        min-height: 42px;
        border-radius: 10px;
      }

      #screen-admin .btn-export-csv { flex-shrink: 0; }

      #screen-admin .demo-btn {
        min-height: 36px;
        border-radius: 8px;
      }

      #screen-admin .table-responsive {
        max-height: min(62vh, 720px);
        overflow: auto;
        border-radius: 12px;
      }

      #screen-admin .admin-table th {
        position: sticky;
        top: 0;
        z-index: 2;
      }

      #screen-admin .admin-table th:last-child,
      #screen-admin .admin-table td:last-child:not([colspan]) {
        position: sticky;
        right: 0;
        box-shadow: -4px 0 8px rgba(10, 37, 64, 0.06);
      }

      #screen-admin .admin-table th:last-child { z-index: 3; }
      #screen-admin .admin-table td:last-child:not([colspan]) { background: white; z-index: 1; }
      #screen-admin .admin-table tr:hover td:last-child:not([colspan]) { background: #fbfdfd; }

      #screen-admin-login.active {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
        align-items: center;
        gap: 48px;
        padding: 32px 0;
      }

      #screen-admin-login .screen-header-text h2 { font-size: 2rem; }
      #screen-admin-login .admin-login-card { margin: 0; padding: 32px; }
    }