/* ── HERO ── */
    .hero {
      min-height: calc(100vh - var(--nav-h));
      display: flex;
      align-items: center;
      background: linear-gradient(135deg, #f6f2ff 0%, #fffbec 55%, #f0fff8 100%);
      padding: 60px 0;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 20% 50%, rgba(92, 51, 246, .08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 217, 74, .12) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(61, 220, 132, .07) 0%, transparent 50%);
      pointer-events: none;
    }

    .hero-blob {
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-blob-1 {
      width: 440px;
      height: 440px;
      background: radial-gradient(circle, rgba(92, 51, 246, .1), transparent 70%);
      top: -100px;
      right: -80px;
    }

    .hero-blob-2 {
      width: 280px;
      height: 280px;
      background: radial-gradient(circle, rgba(255, 217, 74, .14), transparent 70%);
      bottom: -50px;
      left: 8%;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(92, 51, 246, .09);
      color: var(--primary);
      font-family: var(--font-display);
      font-weight: 800;
      font-size: .8rem;
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 22px;
      border: 1px solid rgba(92, 51, 246, .14);
    }

    .hero h1 {
      font-size: clamp(2.2rem, 5vw, 3.5rem);
      line-height: 1.1;
    }

    .hero .highlight {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero .highlight::after {
      content: '';
      position: absolute;
      bottom: 4px;
      left: 0;
      right: 0;
      height: 7px;
      background: var(--yellow);
      opacity: .5;
      border-radius: var(--radius-pill);
      z-index: -1;
    }

    .hero-desc {
      font-size: 1.05rem;
      color: var(--slate);
      margin: 18px 0 32px;
      max-width: 460px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .hero-stats {
      display: flex;
      gap: 32px;
      margin-top: 44px;
      flex-wrap: wrap;
    }

    .hero-stat-num {
      font-family: var(--font-mono);
      font-weight: 700;
      font-size: 1.55rem;
      color: var(--navy);
    }

    .hero-stat-label {
      font-size: .8rem;
      color: var(--slate);
    }

    /* floating cards */
    .hero-visual {
      position: relative;
      height: 400px;
    }

    .floating-card {
      position: absolute;
      background: var(--surface);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      border: 1.5px solid var(--border);
      padding: 16px 18px;
    }

    .fc-main {
      width: 280px;
      top: 30px;
      left: 20px;
      animation: float1 4s ease-in-out infinite;
    }

    .fc-quiz {
      width: 210px;
      top: 10px;
      right: 0;
      animation: float2 4.5s ease-in-out infinite;
    }

    .fc-lb {
      width: 196px;
      bottom: 60px;
      right: 10px;
      animation: float3 5s ease-in-out infinite;
    }

    .fc-ai {
      width: 172px;
      bottom: 10px;
      left: 0;
      animation: float1 3.8s ease-in-out infinite;
    }

    .fc-title {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: .88rem;
      color: var(--navy);
    }

    .fc-sub {
      font-size: .75rem;
      color: var(--slate);
      margin-top: 2px;
    }

    .mini-bar-track {
      height: 6px;
      background: var(--border);
      border-radius: var(--radius-pill);
      overflow: hidden;
      margin-top: 8px;
    }

    .mini-bar-fill {
      height: 100%;
      border-radius: var(--radius-pill);
      background: linear-gradient(90deg, var(--primary), var(--primary-light));
    }

    /* sections */
    .features-section {
      padding: 88px 0;
    }

    .feature-card {
      background: var(--surface);
      border-radius: var(--radius-lg);
      border: 1.5px solid var(--border);
      padding: 28px 24px;
      transition: all var(--transition);
    }

    .feature-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-5px);
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 16px;
    }

    .fi-purple {
      background: var(--primary-faint)
    }

    .fi-yellow {
      background: var(--yellow-faint)
    }

    .fi-green {
      background: var(--green-faint)
    }

    .fi-coral {
      background: var(--coral-faint)
    }

    .fi-teal {
      background: rgba(0, 188, 212, .1)
    }

    .fi-navy {
      background: rgba(26, 26, 62, .07)
    }

    .how-section {
      padding: 72px 0;
      background: #fff;
    }

    .how-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
      margin-top: 48px;
      position: relative;
    }

    .how-steps::before {
      content: '';
      position: absolute;
      top: 36px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--yellow), var(--green));
      border-radius: var(--radius-pill);
      z-index: 0;
    }

    .how-step {
      text-align: center;
      position: relative;
      z-index: 1;
    }

    .step-num {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      background: var(--surface);
      border: 3px solid var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
      font-family: var(--font-display);
      font-weight: 900;
      font-size: 1.25rem;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .step-num.s2 {
      border-color: var(--yellow);
      color: var(--yellow-dark)
    }

    .step-num.s3 {
      border-color: var(--green);
      color: var(--green-dark)
    }

    .step-num.s4 {
      border-color: var(--coral);
      color: var(--coral)
    }

    .ai-section {
      padding: 88px 0;
    }

    .ai-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .ai-feature-item {
      display: flex;
      gap: 14px;
      margin-bottom: 20px;
    }

    .ai-feature-icon {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-md);
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--primary-faint);
      font-size: 1.1rem;
    }

    .ai-visual {
      background: linear-gradient(135deg, rgba(92, 51, 246, .05), rgba(255, 107, 107, .03));
      border: 1.5px solid rgba(92, 51, 246, .14);
      border-radius: var(--radius-xl);
      padding: 32px;
    }

    .ai-chat-bubble {
      border-radius: var(--radius-md);
      padding: 12px 16px;
      font-size: .87rem;
      margin-bottom: 9px;
      max-width: 88%;
      line-height: 1.5;
    }

    .bubble-user {
      background: var(--primary);
      color: #fff;
      margin-left: auto;
    }

    .bubble-ai {
      background: var(--surface);
      border: 1.5px solid var(--border);
      color: var(--navy);
    }

    .cta-section {
      padding: 88px 0;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/svg%3E");
    }

    @media(max-width:900px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }

      .hero-visual {
        display: none;
      }

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

      .how-steps::before {
        display: none;
      }

      .ai-grid {
        grid-template-columns: 1fr;
      }
    }