/* ===== Sistema de Design (tokens) ===== */
:root {
    /* Fundo */
    --bg: #0e0f13;
    --surface: #15171e;
    --surface-2: #1b1e27;

    /* Cor de destaque (única, sóbria) */
    --accent: #6366f1;
    --accent-soft: #818cf8;
    --accent-12: rgba(99, 102, 241, 0.12);
    --accent-20: rgba(99, 102, 241, 0.20);
    --accent-40: rgba(99, 102, 241, 0.40);

    /* Texto */
    --text: #e7e9ee;
    --text-muted: #a1a6b3;
    --text-dim: #6b7180;

    /* Bordas e linhas */
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);

    /* Tipografia */
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Space Grotesk', var(--font-body);

    /* Sombras suaves */
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
}

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

body {
    background-color: var(--bg);
    font-family: var(--font-body);
    color: var(--text);
    position: relative;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

h1, h2, h3, .titulo {
    font-family: var(--font-display);
    letter-spacing: -0.01em;
}






/* Animações de entrada */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay para cards aparecerem em sequência */
.card-projeto:nth-child(1) { transition-delay: 0.1s; }
.card-projeto:nth-child(2) { transition-delay: 0.2s; }
.card-projeto:nth-child(3) { transition-delay: 0.3s; }
.card-projeto:nth-child(4) { transition-delay: 0.4s; }
.card-projeto:nth-child(5) { transition-delay: 0.5s; }
.card-projeto:nth-child(6) { transition-delay: 0.6s; }
.card-projeto:nth-child(7) { transition-delay: 0.7s; }