* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      background: linear-gradient(145deg, #eef2f8 0%, #e3e9f1 100%);
      font-family: 'Inter', sans-serif;
      min-height: 100vh;
      position: relative;
    }

    /* animated background orbs */
    body::before {
      content: "";
      position: fixed;
      top: -15%;
      right: -8%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(83,187,165,0.1) 0%, rgba(83,187,165,0) 70%);
      border-radius: 50%;
      pointer-events: none;
      z-index: 0;
    }

    body::after {
      content: "";
      position: fixed;
      bottom: -10%;
      left: -5%;
      width: 350px;
      height: 350px;
      background: radial-gradient(circle, rgba(255,180,71,0.08) 0%, rgba(255,180,71,0) 70%);
      border-radius: 50%;
      pointer-events: none;
      z-index: 0;
    }

    /* ========== TOP NAVIGATION ========== */
    .top-nav {
      background: rgba(255, 255, 248, 0.96);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(83, 187, 165, 0.25);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
      position: sticky;
      top: 0;
      z-index: 100;
      padding: 0.85rem 2rem;
    }

    .nav-container {
      max-width: 1280px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-family: 'Playfair Display', serif;
      font-weight: 700;
      font-size: 1.45rem;
      background: linear-gradient(135deg, #1E4A5F, #2f7a6b);
      background-clip: text;
      -webkit-background-clip: text;
      color: transparent;
    }

    .nav-brand i {
      font-size: 1.6rem;
      color: #2f7a6b;
      background: none;
    }

    .login-nav-btn {
      background: linear-gradient(105deg, #2c7a6e, #389e8a);
      border: none;
      border-radius: 50px;
      padding: 0.6rem 1.6rem;
      font-weight: 600;
      font-size: 0.9rem;
      color: white;
      cursor: pointer;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-family: 'Inter', sans-serif;
      box-shadow: 0 4px 12px rgba(44,122,110,0.2);
    }

    .login-nav-btn:hover {
      transform: translateY(-2px);
      background: linear-gradient(105deg, #216b5e, #2e8b76);
      box-shadow: 0 8px 20px rgba(44,122,110,0.3);
    }

    /* ========== MAIN CONTENT ========== */
    .main-wrapper {
      display: flex;
      justify-content: center;
      padding: 2rem 1.5rem 3rem;
    }

    .queue-card {
      max-width: 720px;
      width: 100%;
      background: rgba(255, 255, 252, 0.92);
      backdrop-filter: blur(12px);
      border-radius: 2.5rem;
      box-shadow: 0 35px 60px -25px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255,255,255,0.6) inset;
      overflow: hidden;
      transition: transform 0.2s ease;
    }

    /* header inside card */
    .card-header {
      text-align: center;
      padding: 2rem 2rem 1rem;
      background: linear-gradient(115deg, rgba(255,255,245,0.5), rgba(245,250,255,0.3));
      border-bottom: 1px solid rgba(0,0,0,0.04);
    }

    .card-header h1 {
      font-family: 'Playfair Display', serif;
      font-weight: 700;
      font-size: 2.2rem;
      background: linear-gradient(125deg, #1E4A5F, #358072);
      background-clip: text;
      -webkit-background-clip: text;
      color: transparent;
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }

    .accent-line {
      width: 70px;
      height: 3px;
      background: linear-gradient(90deg, #53bba5, #ffb347);
      margin: 0.8rem auto 0;
      border-radius: 4px;
    }

    /* ========== GUIDANCE BANNER (redesigned as elegant info panel) ========== */
    .guidance-banner {
      background: linear-gradient(115deg, #f0f9fe, #fefcf5);
      margin: 1.2rem 1.8rem 1.8rem 1.8rem;
      border-radius: 1.5rem;
      padding: 1.2rem 1.5rem;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      border: 1px solid rgba(83, 187, 165, 0.2);
      box-shadow: 0 6px 14px rgba(0, 0, 0, 0.03);
      transition: all 0.2s;
    }

    .guidance-banner:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 22px -10px rgba(0, 0, 0, 0.08);
      border-color: rgba(83, 187, 165, 0.4);
    }

    .guidance-text {
      flex: 2;
    }

    .guidance-text h3 {
      font-size: 1rem;
      font-weight: 700;
      color: #1e4a5f;
      letter-spacing: -0.2px;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .guidance-text h3 i {
      font-size: 1.3rem;
    }

    .guidance-text p {
      font-size: 0.85rem;
      color: #4a6f7e;
      line-height: 1.4;
    }

    .guidance-number {
      background: white;
      padding: 0.5rem 1rem;
      border-radius: 60px;
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      font-size: 0.95rem;
      color: #1e4a5f;
      border: 1px solid #e2edf3;
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    }

    .guidance-number i {
      color: #25D366;
      font-size: 1.1rem;
    }

    /* ========== SERVING CARD ========== */
    .serving-card {
      text-align: center;
      padding: 1.8rem 1.8rem 2rem;
      margin: 0 1.2rem 1.5rem 1.2rem;
      background: linear-gradient(125deg, #ffffff, #fefcf9);
      border-radius: 2rem;
      box-shadow: 0 15px 30px -12px rgba(0, 0, 0, 0.08);
      border: 0.5px solid rgba(255,255,245,0.9);
    }

    .serving-card h2 {
      font-weight: 600;
      font-size: 1.4rem;
      color: #2c6b5e;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border-bottom: 2px dashed #cde3dc;
      padding-bottom: 0.4rem;
      margin-bottom: 1rem;
    }

    #current {
      font-size: 5.2rem;
      font-weight: 800;
      font-family: 'Inter', monospace;
      background: linear-gradient(130deg, #1f5f4e, #2f8c78);
      background-clip: text;
      -webkit-background-clip: text;
      color: transparent;
      letter-spacing: 4px;
      margin: 0.3rem 0;
    }

    .token-note {
      margin-top: 0.5rem;
      font-size: 0.7rem;
      color: #8aaebf;
    }

    /* ========== STATUS PANEL ========== */
    .status-panel {
      margin: 0 1.2rem 1.5rem 1.2rem;
      background: #fafefe;
      border-radius: 1.5rem;
      padding: 0.9rem 1.2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      border: 1px solid #e8f0f3;
    }

    .live-badge {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8rem;
      font-weight: 500;
      color: #2c7a6e;
    }

    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: #2c7a6e;
      border-radius: 50%;
      animation: pulseLive 1.4s infinite;
    }

    @keyframes pulseLive {
      0% { opacity: 0.4; transform: scale(0.8); }
      100% { opacity: 1; transform: scale(1.2); background-color: #53bba5; }
    }

    .refresh-info {
      font-size: 0.75rem;
      color: #7c9bad;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* ========== HELPER CARD (queue benefits) ========== */
    .info-tips {
      margin: 0 1.2rem 1.8rem 1.2rem;
      background: #f8fbfe;
      border-radius: 1.2rem;
      padding: 0.9rem 1rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 1rem;
      font-size: 0.7rem;
      color: #5f879a;
      border: 0.5px solid #e5edf2;
    }

    .info-tips span i {
      margin-right: 4px;
      color: #53bba5;
    }

    /* responsive */
    @media (max-width: 580px) {
      .top-nav {
        padding: 0.6rem 1rem;
      }
      .nav-brand {
        font-size: 1rem;
      }
      .card-header h1 {
        font-size: 1.6rem;
      }
      .guidance-banner {
        flex-direction: column;
        text-align: center;
        margin: 1rem 1rem 1.5rem;
      }
      .guidance-number {
        justify-content: center;
      }
      #current {
        font-size: 3.6rem;
        letter-spacing: 2px;
      }
      .serving-card {
        margin: 0 0.8rem 1.2rem;
        padding: 1.2rem;
      }
      .status-panel, .info-tips {
        margin-left: 0.8rem;
        margin-right: 0.8rem;
      }
    }