/* ── Reset & Base ─────────────────────────────────── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    img { display: block; max-width: 100%; }
    a { text-decoration: none; color: inherit; }
    button { cursor: pointer; border: none; background: none; font: inherit; }

    html, body {
        height: 100%;
        background: var(--color-bg);
        color: var(--color-text);
        font-family: var(--font-body);
        font-size: 14px;
        line-height: 1.6;
    }

    /* ── Noise grain overlay ──────────────────────────── */
    body::before {
        content: '';
        position: fixed; inset: 0; z-index: 0; pointer-events: none;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
        opacity: .35;
    }

    /* ── Grid background ──────────────────────────────── */
    body::after {
        content: '';
        position: fixed; inset: 0; z-index: 0; pointer-events: none;
        background-image:
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
        background-size: 48px 48px;
        mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent);
        opacity: .5;
    }

    body
    {
      overflow: hidden;
    }

    /* ── Layout ───────────────────────────────────────── */
    #app { position: relative; z-index: 1; min-height: 100vh; }

    /* ── Pages ───────────────────────────────────────── */
    .page { display: none; animation: fadeIn .35s ease; }
    .page.active { display: block; }

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(12px); }
        to   { opacity: 1; transform: translateY(0); }
    }

    #app {
        transition: all 0.12s ease;
    }

    .fade-out {
        opacity: 0;
        transform: translateY(5px);
    }

    .fade-in {
        opacity: 1;
        transform: translateY(0);
    }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 var(--space-6);
    }
    .sr-only {
      position: absolute; width: 1px; height: 1px;
      padding: 0; margin: -1px; overflow: hidden;
      clip: rect(0,0,0,0); border: 0;
    }
    .highlight {
      background: var(--gradient-accent);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .badge {
      display: inline-flex; align-items: center; gap: var(--space-2);
      padding: var(--space-2) var(--space-4);
      border-radius: var(--radius-full);
      border: 1px solid rgba(var(--color-accent-rgb), 0.3);
      background: rgba(var(--color-accent-rgb), 0.06);
      font-size: var(--text-xs);
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--color-accent);
    }
    .badge::before {
      content: '';
      width: 6px; height: 6px; border-radius: 50%;
      background: var(--color-accent);
      box-shadow: 0 0 8px var(--color-accent);
      animation: pulse-dot 2s ease-in-out infinite;
    }
    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50%       { opacity: 0.5; transform: scale(1.4); }
    }

    /* ── botões ───────────────────────────────────────── */
    .btn {
      display: inline-flex; align-items: center; gap: var(--space-2);
      padding: var(--space-3) var(--space-6);
      border-radius: var(--radius-full);
      font-family: var(--font-display);
      font-weight: 600;
      font-size: var(--text-sm);
      letter-spacing: 0.01em;
      transition: all var(--dur-med) var(--ease-spring);
      position: relative;
      overflow: hidden;
    }
    .btn-primary {
      background: var(--gradient-accent);
      color: var(--color-bg);
      box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.5);
    }
    .btn-primary::after {
      content: '';
      position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
      opacity: 0;
      transition: opacity var(--dur-fast);
    }
    .btn-primary:hover {
      transform: translateY(-2px) scale(1.02);
      box-shadow: 0 0 30px rgba(var(--color-accent-rgb), 0.4),
                  0 8px 24px rgba(0,0,0,0.3);
    }
    .btn-primary:hover::after { opacity: 1; }
    .btn-primary:active { transform: translateY(0) scale(0.99); }

    .btn-ghost {
      background: transparent;
      color: var(--color-text);
      border: 1px solid var(--color-border);
    }
    .btn-ghost:hover {
      background: var(--color-surface);
      border-color: var(--color-border-hover);
      transform: translateY(-1px);
    }
    .btn-lg {
      padding: var(--space-4) var(--space-8);
      font-size: var(--text-base);
    }

    /* ── Cursor customizado ───────────────────────────────────────── */
    .cursor-dot {
      position: fixed; top: 0; left: 0; z-index: 9999;
      width: 8px; height: 8px; border-radius: 50%;
      background: var(--color-accent);
      pointer-events: none;
      transform: translate(-50%,-50%);
      transition: transform var(--dur-fast) var(--ease-spring),
                  opacity var(--dur-fast);
      mix-blend-mode: difference;
    }
    .cursor-ring {
      position: fixed; top: 0; left: 0; z-index: 9998;
      width: 36px; height: 36px; border-radius: 50%;
      border: 1.5px solid rgba(var(--color-accent-rgb), 0.5);
      pointer-events: none;
      transform: translate(-50%,-50%);
      transition: transform 120ms var(--ease-out),
                  width var(--dur-fast) var(--ease-spring),
                  height var(--dur-fast) var(--ease-spring),
                  border-color var(--dur-fast);
    }
    .cursor-ring.hovering {
      width: 56px; height: 56px;
      border-color: var(--color-accent);
    }
    @media (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

    /* ── Scroll Progress ───────────────────────────────────────── */
    .scroll-progress {
      position: fixed; top: 0; left: 0; right: 0;
      height: 2px; z-index: 200;
      background: transparent;
    }
    .scroll-progress-bar {
      height: 100%;
      background: var(--gradient-accent);
      width: 0%;
      transition: width 50ms linear;
      box-shadow: 0 0 8px rgba(var(--color-accent-rgb), 0.6);
    }

    /* ── Parallax ───────────────────────────────────────── */
    .parallax-slow  { will-change: transform; }
    .parallax-med   { will-change: transform; }
    .parallax-fast  { will-change: transform; }

    /* Tela de loading */
    #loader {
      position: fixed;
      width: 100%;
      height: 100%;
      background: #0f172a;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      z-index: 9999;
      color: #fff;
      overflow: hidden;
    }

    /* Spinner */
    .spinner {
      width: 40px;
      height: 40px;
      border: 6px solid rgba(255,255,255,0.2);
      border-top: 6px solid #38bdf8;
      border-radius: 50%;
      animation: spin 1s linear infinite;
      margin-bottom: 20px;
    }

    @keyframes spin {
      to {
        transform: rotate(360deg);
      }
    }

    /* Texto percentual */
    #percent {
      font-size: 0.9rem;
      letter-spacing: 1px;
    }