* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Inter', sans-serif;
    }

    :root {
      --bg-main: #060814;
      --bg-sidebar: #0b0e24;
      --bg-card: #0d1233;
      --bg-card-inner: #070a21;
      --text-main: #ffffff;
      --text-muted: #8fa0dd;
      --text-dim: #506199;
      --accent-purple: #6366f1;
      --accent-blue: #2563eb;
      --glow-purple: rgba(99, 102, 241, 0.15);
      --glow-blue: rgba(37, 99, 235, 0.2);
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      display: flex;
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* --- SIDEBAR --- */
    .sidebar {
      width: 260px;
      background-color: var(--bg-sidebar);
      padding: 24px 16px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border-right: 1px solid rgba(255, 255, 255, 0.03);
      position: fixed;
      top: 0;
      left: 0;
      height: 100vh;
      transform: translateX(-110%);
      transition: transform 0.28s ease;
      z-index: 1200;
      overflow-y: auto;
      overscroll-behavior: contain;
      box-shadow: 20px 0 80px rgba(0, 0, 0, 0.4);
    }

    .sidebar.open {
      transform: translateX(0);
    }

    .sidebar.scrolled {
      box-shadow: -20px 0 80px rgba(0, 0, 0, 0.45);
    }

    .sidebar-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.45);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s ease;
      z-index: 1100;
    }

    .sidebar-overlay.visible {
      opacity: 1;
      pointer-events: auto;
    }

    .sidebar-toggle {
      position: fixed;
      top: 18px;
      left: 18px;
      width: 42px;
      height: 38px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      z-index: 1300;
      cursor: pointer;
    }

    .sidebar-toggle .lines {
      display: block;
      width: 22px;
      height: 2px;
      background: #fff;
      position: relative;
      transition: background-color 0.2s ease;
    }

    .sidebar-toggle .lines::before,
    .sidebar-toggle .lines::after {
      content: '';
      position: absolute;
      left: 0;
      width: 22px;
      height: 2px;
      background: #fff;
      transition: transform 0.18s ease;
    }

    .sidebar-toggle .lines::before { top: -7px; }
    .sidebar-toggle .lines::after { top: 7px; }

    .sidebar-toggle[aria-expanded='true'] .lines {
      background: transparent;
    }

    .sidebar-toggle[aria-expanded='true'] .lines::before {
      transform: translateY(7px) rotate(45deg);
    }

    .sidebar-toggle[aria-expanded='true'] .lines::after {
      transform: translateY(-7px) rotate(-45deg);
    }

    .logo-container {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 32px;
      padding-left: 12px;
    }

    .logo-icon {
      color: var(--accent-purple);
      filter: drop-shadow(0 0 8px var(--accent-purple));
    }

    .nav-menu {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 12px 16px;
      color: var(--text-muted);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      border-radius: 8px;
      transition: all 0.2s ease;
    }

    .nav-item:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.03);
    }

    .nav-item.active {
      color: #fff;
      background: linear-gradient(90deg, rgba(99, 102, 241, 0.15) 0%, rgba(37, 99, 235, 0.05) 100%);
      border-left: 3px solid var(--accent-purple);
    }

    /* Sidebar Robot Card */
    .ai-box {
      background: linear-gradient(135deg, #0f1642 0%, #080b26 100%);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 16px;
      padding: 20px;
      text-align: center;
      position: relative;
      margin-top: auto;
    }

    .ai-avatar {
      width: 64px;
      height: 64px;
      margin: 0 auto 12px;
      background: #172265;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid var(--accent-blue);
      box-shadow: 0 0 15px rgba(37, 99, 235, 0.3);
    }

    .ai-box h4 {
      font-size: 15px;
      margin-bottom: 6px;
    }

    .ai-box p {
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 16px;
      line-height: 1.4;
    }

    .chat-btn {
      width: 100%;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: #fff;
      padding: 10px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: 0.2s;
    }

    .chat-btn:hover {
      background: rgba(255, 255, 255, 0.1);
    }

    /* --- MAIN CONTENT CONTAINER --- */
    .main-wrapper {
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    /* --- TOP NAVBAR --- */
    .top-bar {
      height: 70px;
      padding: 0 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }

    .logo.page-title {
      position: absolute;
      left: 72px;
      top: 50%;
      transform: translateY(-50%);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: #fff;
      font-size: 18px;
      font-weight: 700;
      letter-spacing: 0.01em;
      z-index: 1250;
    }

    .logo.page-title .page-title-icon {
      color: var(--accent-purple);
      width: 22px;
      height: 22px;
      filter: drop-shadow(0 0 6px var(--accent-purple));
    }

    .logo.page-title span {
      color: var(--accent-purple);
    }

    .top-nav {
      display: flex;
      gap: 32px;
    }

    .top-actions {
      position: absolute;
      right: 40px;
      top: 50%;
      transform: translateY(-50%);
    }

    .top-link {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      position: relative;
      padding: 24px 0;
    }

    .top-link:hover, .top-link.active {
      color: #fff;
    }

    .top-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-purple);
      box-shadow: 0 0 8px var(--accent-purple);
    }

    .top-actions {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .icon-btn {
      background: none;
      border: none;
      color: var(--text-muted);
      cursor: pointer;
      position: relative;
    }

    .icon-btn:hover {
      color: #fff;
    }

    .badge {
      position: absolute;
      top: -2px;
      right: -2px;
      width: 6px;
      height: 6px;
      background: #ef4444;
      border-radius: 50%;
    }

    .profile-img {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      object-fit: cover;
      border: 2px solid rgba(255, 255, 255, 0.1);
    }

    /* --- DASHBOARD GRID --- */
    .content-grid {
      padding: 32px 40px;
      display: flex;
      gap: 24px;
      align-items: flex-start;
    }

    .left-column {
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .right-column {
      width: 340px;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    /* --- QUIZ HERO BANNER --- */
    .hero-card {
      background: linear-gradient(135deg, #0d1233 0%, #070919 100%);
      border: 1px solid rgba(255, 255, 255, 0.04);
      border-radius: 20px;
      padding: 32px;
      position: relative;
      overflow: hidden;
      display: flex;
      justify-content: space-between;
    }

    .hero-info {
      max-width: 60%;
    }

    .hero-info h1 {
      font-size: 36px;
      font-weight: 700;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .hero-info p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.6;
    }

    .hero-info p span {
      color: #a78bfa;
      font-weight: 500;
    }

    .hero-visual {
      position: relative;
      width: 140px;
      height: 140px;
    }

    /* Decorative glowing 3D-like icon representation */
    .brain-glow {
      position: absolute;
      width: 80px;
      height: 80px;
      background: radial-gradient(circle, #8b5cf6 0%, transparent 70%);
      top: 20px;
      right: 10px;
      filter: blur(10px);
      opacity: 0.6;
    }

    /* --- STEPS TIMELINE --- */
    .timeline-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      margin: 32px 0 12px;
      padding: 0 10px;
    }

    .timeline-meta {
      text-transform: uppercase;
      color: var(--accent-blue);
      font-size: 12px;
      letter-spacing: 1px;
      margin-bottom: 6px;
    }

    .timeline-title {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
    }

    .steps-timeline {
      display: flex;
      justify-content: space-between;
      margin-top: 16px;
      position: relative;
      padding: 0 10px;
    }

    .steps-timeline::before {
      content: '';
      position: absolute;
      top: 24px;
      left: 40px;
      right: 40px;
      height: 1px;
      background: rgba(255, 255, 255, 0.15);
      z-index: 1;
    }

    .step {
      position: relative;
      z-index: 2;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      width: 90px;
    }

    .step-node {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #13193a;
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 12px;
      transition: 0.3s;
    }

    .step-node i {
      color: var(--text-muted);
    }

    .step.active .step-node,
    .step.completed .step-node {
      border-color: transparent;
    }

    .step.active .step-node {
      background: var(--accent-purple);
      color: #fff;
      box-shadow: 0 0 14px rgba(99, 102, 241, 0.35);
    }

    .step.completed .step-node {
      background: #10b981;
      color: #fff;
      box-shadow: 0 0 14px rgba(16, 185, 129, 0.3);
    }

    .step.active .step-node {
      background: var(--accent-purple);
      color: #fff;
      border-color: var(--accent-purple);
      box-shadow: 0 0 15px var(--accent-purple);
    }

    .step.completed .step-node {
      background: #10b981;
      color: #fff;
      border-color: #10b981;
    }

    .step-label {
      font-size: 13px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 4px;
    }

    .step-desc {
      font-size: 11px;
      color: var(--text-dim);
      white-space: nowrap;
    }

    /* --- QUIZ INTERACTIVE CARD --- */
    .quiz-card {
      background-color: var(--bg-card-inner);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 20px;
      padding: 32px;
    }

    .quiz-card h2 {
      color: #a78bfa;
      font-size: 22px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .quiz-card .subtitle {
      color: var(--text-muted);
      font-size: 14px;
      margin-bottom: 24px;
    }

    .question-title {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .question-title span {
      color: var(--text-dim);
      font-weight: 400;
      font-size: 14px;
    }

    /* Options Grid */
    .options-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 32px;
    }

    .option-box {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: 12px;
      padding: 24px 16px;
      text-align: center;
      cursor: pointer;
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
    }

    .option-box:hover {
      background: rgba(255, 255, 255, 0.05);
      border-color: rgba(255, 255, 255, 0.2);
      transform: translateY(-2px);
    }

    .option-box.selected {
      background: rgba(99, 102, 241, 0.08);
      border-color: var(--accent-purple);
      box-shadow: inset 0 0 12px rgba(99, 102, 241, 0.1);
    }

    .option-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* Distinct soft glowing colors for icons */
    .opt-tech .option-icon { color: #3b82f6; background: rgba(59, 130, 246, 0.1); }
    .opt-biz .option-icon { color: #38bdf8; background: rgba(56, 189, 248, 0.1); }
    .opt-arts .option-icon { color: #f43f5e; background: rgba(244, 63, 94, 0.1); }
    .opt-sci .option-icon { color: #10b981; background: rgba(16, 185, 129, 0.1); }
    .opt-health .option-icon { color: #ec4899; background: rgba(236, 72, 153, 0.1); }
    .opt-edu .option-icon { color: #fbbf24; background: rgba(251, 191, 36, 0.1); }
    .opt-finance .option-icon { color: #2dd4bf; background: rgba(45, 212, 191, 0.1); }
    .opt-others .option-icon { color: #9ca3af; background: rgba(156, 163, 171, 0.1); }

    .other-input-container {
      display: none;
      grid-column: 1 / -1;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 18px 20px;
      margin-bottom: 20px;
      color: #fff;
    }

    .other-input-container.visible {
      display: block;
    }

    .other-input-container label {
      display: block;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .other-input-container input {
      width: 100%;
      padding: 14px 16px;
      border-radius: 12px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      background: rgba(255, 255, 255, 0.05);
      color: #fff;
      font-size: 14px;
    }

    .other-input-container input::placeholder {
      color: rgba(255, 255, 255, 0.55);
    }

    .option-title {
      font-size: 14px;
      font-weight: 500;
      color: #fff;
    }

    /* Submit Button */
    .next-btn {
      width: 100%;
      background: linear-gradient(90deg, var(--accent-purple) 0%, var(--accent-blue) 100%);
      border: none;
      color: #fff;
      padding: 16px;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      box-shadow: 0 4px 20px rgba(37, 99, 235, 0.25);
      transition: opacity 0.2s;
    }

    .next-btn:hover {
      opacity: 0.95;
    }

    /* --- RIGHT PANEL CARDS --- */
    .side-card {
      background-color: var(--bg-sidebar);
      border: 1px solid rgba(255, 255, 255, 0.04);
      border-radius: 20px;
      padding: 24px;
    }

    .side-card h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 20px;
    }

    /* Progress Circle */
    .progress-container {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .progress-circle {
      position: relative;
      width: 80px;
      height: 80px;
    }

    .progress-circle svg {
      width: 80px;
      height: 80px;
      transform: rotate(-90deg);
    }

    .progress-circle circle {
      fill: none;
      stroke-width: 6;
    }

    .progress-circle .bg {
      stroke: rgba(255, 255, 255, 0.05);
    }

    .progress-circle .bar {
      stroke: var(--accent-blue);
      stroke-dasharray: 220;
      stroke-dashoffset: 176; /* 20% finished */
      stroke-linecap: round;
    }

    .progress-text {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      font-size: 16px;
      font-weight: 700;
    }

    .progress-info .step-count {
      color: var(--accent-blue);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .progress-info .step-name {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .progress-info .time-est {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* Info Checklist */
    .info-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .info-item {
      display: flex;
      gap: 12px;
    }

    .info-icon {
      color: var(--accent-purple);
      flex-shrink: 0;
      margin-top: 2px;
    }

    .info-text h5 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .info-text p {
      font-size: 12px;
      color: var(--text-dim);
      line-height: 1.4;
    }

    /* Privacy Segment */
    .privacy-box {
      display: flex;
      gap: 14px;
    }

    .privacy-shield {
      width: 40px;
      height: 40px;
      background: rgba(37, 99, 235, 0.1);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-blue);
      flex-shrink: 0;
    }

    /* --- FOOTER TIP BANNER --- */
    .tip-banner {
      background: rgba(13, 18, 51, 0.4);
      border: 1px solid rgba(255, 255, 255, 0.03);
      border-radius: 12px;
      margin: 0 40px 32px;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .tip-content {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .tip-icon {
      color: #a78bfa;
    }

    .tip-content strong {
      color: #fff;
    }

    .close-tip {
      background: none;
      border: none;
      color: var(--text-dim);
      cursor: pointer;
    }

    .close-tip:hover {
      color: #fff;
    }

    /* --- RESPONSIVE MEDIA QUERIES --- */
    @media (max-width: 900px) {
      .top-nav {
        display: none !important;
      }
      .logo.page-title {
        left: 70px;
      }
      .content-grid {
        flex-direction: column;
        padding: 24px 20px;
      }
      .right-column {
        width: 100% !important;
      }
    }

    @media (max-width: 768px) {
      .step-desc {
        display: none !important;
      }
      .step-label {
        font-size: 11px;
      }
      .steps-timeline::before {
        top: 20px;
      }
      .step-node {
        width: 36px;
        height: 36px;
        margin-bottom: 8px;
      }
      .options-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px;
      }
      .tip-banner {
        margin: 0 20px 20px;
        padding: 12px 16px;
      }
    }

    @media (max-width: 600px) {
      .hero-card {
        flex-direction: column;
        gap: 20px;
        padding: 24px;
      }
      .hero-info {
        max-width: 100%;
        text-align: center;
      }
      .hero-visual {
        margin: 0 auto;
      }
    }

    @media (max-width: 480px) {
      .options-grid {
        grid-template-columns: 1fr !important;
      }
      .top-actions {
        right: 16px;
        gap: 12px;
      }
      .top-actions .icon-btn {
        display: none;
      }
      .logo.page-title {
        font-size: 15px !important;
      }
    }