:root {
    /* Paleta de Cores (Ciano Institucional e Laranja de Destaque) */
    --color-primary: #00bcd4; /* Ciano Principal (Cyan) */
    --color-primary-dark: #00838f; /* Ciano Escuro */
    --color-secondary: #ff9800; /* Laranja (Orange) */
    --color-accent: #ff4500; /* Laranja Vermelho (Red Orange) (CTA) */
    --color-background: #ffffff; /* Fundo Branco */
    --color-text: #343a40; /* Texto Escuro */
    --color-light-text: #f8f9fa; /* Texto Claro */
    --color-light-bg: #f8f9fa; /* Fundo Claro */
    --color-border: #dee2e6; /* Borda Cinza */

    /* Tipografia */
    --font-family-system: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
}

/* Reset Básico */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-system);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout Principal */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

/* Títulos */
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }

/* Links */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Botões (CTA) */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: 0.25rem;
    transition: all 0.3s ease;
}

.btn-primary {
    color: var(--color-light-text);
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background-color: #cc3700;
    border-color: #992a00;
}

/* Seções */
.section {
    padding: 4rem 0; /* Espaçamento generoso */
}

.section-light {
    background-color: var(--color-light-bg);
}

.text-center {
    text-align: center;
}

/* Responsividade básica */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    .section { padding: 3rem 0; }
}