:root {
      --bg: #FFFFFF;
      --surface: #F8F9FF;
      --primary: #6366F1;
      --primary-dark: #4F46E5;
      --success: #10B981;
      --warning: #F59E0B;
      --danger: #EF4444;
      --text: #111827;
      --muted: #6B7280;
      --border: #E5E7EB;
      --radius-card: 12px;
      --radius-input: 8px;
      --radius-pill: 999px;
      --shadow: 0 2px 16px rgba(0,0,0,0.06);
      --shadow-lg: 0 8px 32px rgba(99,102,241,0.12);
      --font: 'Inter', system-ui, sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font);
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
    }
    button { cursor: pointer; font-family: var(--font); border: none; outline: none; }
    input, textarea, select {
      font-family: var(--font);
      outline: none;
      border: 1.5px solid var(--border);
      border-radius: var(--radius-input);
      padding: 10px 12px;
      font-size: 14px;
      color: var(--text);
      background: var(--bg);
      transition: border-color 0.2s, box-shadow 0.2s;
      width: 100%;
    }
    input:focus, textarea:focus, select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
    }
    label { font-size: 13px; font-weight: 500; color: var(--muted); display: block; margin-bottom: 4px; }
    .field { margin-bottom: 12px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      padding: 11px 20px; border-radius: var(--radius-input);
      font-size: 14px; font-weight: 600; transition: transform 0.15s, box-shadow 0.15s, filter 0.15s;
    }
    .btn:hover { transform: scale(1.02); }
    .btn:active { transform: scale(0.98); }
    .btn-primary {
      background: var(--primary); color: #fff;
      box-shadow: 0 2px 8px rgba(99,102,241,0.25);
    }
    .btn-primary:hover { background: var(--primary-dark); box-shadow: 0 4px 16px rgba(99,102,241,0.35); }
    .btn-secondary { background: var(--surface); color: var(--text); border: 1.5px solid var(--border); }
    .btn-success { background: var(--success); color: #fff; box-shadow: 0 2px 8px rgba(16,185,129,0.25); }
    .btn-full { width: 100%; }
    .card {
      background: var(--bg);
      border: 1.5px solid var(--border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow);
    }
    .pill {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 4px 12px; border-radius: var(--radius-pill);
      font-size: 12px; font-weight: 600;
    }
    .pill-primary { background: rgba(99,102,241,0.1); color: var(--primary); }
    .pill-warning { background: rgba(245,158,11,0.12); color: #D97706; }
    .pill-danger { background: rgba(239,68,68,0.12); color: #DC2626; }
    .pill-success { background: rgba(16,185,129,0.1); color: #059669; }
    .view { display: none; }
    .view.active { display: block; }
    .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(16px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes springIn {
      0% { opacity: 0; transform: scale(0.7); }
      60% { transform: scale(1.08); }
      80% { transform: scale(0.97); }
      100% { opacity: 1; transform: scale(1); }
    }
    @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
    @keyframes slideIn { from { opacity: 0; transform: translateX(-12px); } to { opacity: 1; transform: translateX(0); } }
    @keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.06); } }
    @keyframes shimmer {
      0% { background-position: -200% center; }
      100% { background-position: 200% center; }
    }
    @keyframes checkDraw {
      to { stroke-dashoffset: 0; }
    }
    @keyframes successBg {
      0% { opacity: 0; } 20% { opacity: 1; } 80% { opacity: 1; } 100% { opacity: 0; }
    }
    @keyframes bounce {
      0%, 100% { transform: translateX(-50%) translateY(0); }
      50% { transform: translateX(-50%) translateY(8px); }
    }
    @keyframes spin { to { transform: rotate(360deg); } }
    .feat-card {
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .feat-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 36px rgba(99,102,241,0.14);
    }
    .scroll-anim {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity 600ms cubic-bezier(0.16,1,0.3,1),
                  transform 600ms cubic-bezier(0.16,1,0.3,1);
    }
    .scroll-anim.visible { opacity: 1; transform: translateY(0); }
    @keyframes heroSlide {
      from { opacity: 0; transform: translateY(28px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    @keyframes heroMockup {
      from { opacity: 0; transform: rotate(-3deg) scale(0.9) translateY(24px); }
      to   { opacity: 1; transform: rotate(-3deg) scale(1) translateY(0); }
    }
    @media (max-width:900px) {
      .hero-grid { grid-template-columns: 1fr !important; gap: 40px !important; }
      .hero-mockup { display: none !important; }
      .compare-grid { grid-template-columns: 1fr !important; }
      .feat-grid-top { grid-template-columns: 1fr 1fr !important; }
    }
    @media (max-width:600px) {
      .feat-grid-top { grid-template-columns: 1fr !important; }
      .feat-grid-bot { grid-template-columns: 1fr !important; }
      .audience-grid { grid-template-columns: 1fr !important; }
    }

    /* ── STEP STEPPER ─────────────────────────────────────────────── */
    .step-btn {
      display: inline-flex; align-items: center; gap: 10px;
      padding: 12px 24px; border-radius: 999px;
      font-size: 14px; font-weight: 600; font-family: var(--font);
      border: 1.5px solid var(--border); background: var(--bg); color: var(--muted);
      cursor: pointer; transition: all 0.2s ease;
    }
    .step-btn:hover { border-color: var(--primary); color: var(--primary); }
    .step-btn.step-active {
      background: var(--primary); color: #fff;
      border-color: var(--primary);
      box-shadow: 0 4px 16px rgba(99,102,241,0.3);
    }
    .step-num {
      width: 22px; height: 22px; border-radius: 50%;
      background: rgba(255,255,255,0.2); font-size: 11px;
      font-weight: 700; display: flex; align-items: center; justify-content: center;
    }
    .step-btn:not(.step-active) .step-num {
      background: rgba(99,102,241,0.1); color: var(--primary);
    }
    .step-content { animation: fadeUp 0.3s ease both; }
    @keyframes stepFade {
      from { opacity: 0; transform: translateY(12px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ── KPI CARDS ────────────────────────────────────────────────── */
    .kpi-card {
      padding: 28px 32px; border-radius: 20px;
      background: var(--bg); border: 1.5px solid var(--border);
      box-shadow: var(--shadow); text-align: center;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .kpi-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
    .kpi-value {
      font-size: clamp(28px, 3.5vw, 40px); font-weight: 700;
      color: var(--primary); line-height: 1;
    }
    .kpi-label { font-size: 14px; color: var(--muted); margin-top: 6px; line-height: 1.5; }

    /* ── DEMO PLACEHOLDER ──────────────────────────────────────────── */
    .demo-placeholder {
      background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
      border-radius: 20px; overflow: hidden; position: relative;
      aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center;
      box-shadow: 0 32px 80px rgba(0,0,0,0.35);
      cursor: pointer;
    }
    .demo-play-btn {
      width: 72px; height: 72px; border-radius: 50%;
      background: rgba(255,255,255,0.15); border: 2px solid rgba(255,255,255,0.4);
      backdrop-filter: blur(10px); display: flex; align-items: center; justify-content: center;
      transition: transform 0.2s ease, background 0.2s ease;
      position: relative; z-index: 2;
    }
    .demo-placeholder:hover .demo-play-btn {
      transform: scale(1.1); background: rgba(99,102,241,0.5);
      border-color: rgba(99,102,241,0.8);
    }

    /* ── PDF PREVIEW MOCKUP ────────────────────────────────────────── */
    .pdf-paper {
      background: #fff; border-radius: 8px;
      box-shadow: 0 8px 40px rgba(0,0,0,0.18), 0 2px 8px rgba(0,0,0,0.1);
      overflow: hidden; font-family: var(--font);
    }
    @media (max-width:900px) {
      .demo-placeholder { aspect-ratio: 4/3; }
      .step-btn { font-size: 13px; padding: 10px 16px; gap: 8px; }
      .demo-layout { grid-template-columns: 1fr !important; }
    }
    @media (max-width:600px) {
      .step-btn { font-size: 12px; padding: 9px 14px; }
      .step-num { width: 18px; height: 18px; font-size: 10px; }
    }