/* --- DESIGN SYSTEM & VARIABLES --- */
:root {
    --primary: #0077b6;
    --secondary: #00b4d8;
    --bg-light: #f8f9fa;
    --text-dark: #212529;
    --white: #ffffff;
    --radius: 12px;
    --spacing: 2rem;
    --transition: all 0.3s ease;
    --font-base: 1rem;
}

/* --- MODO ALTO CONTRASTE --- */
body.high-contrast {
    --primary: #ffff00;
    --secondary: #ffffff;
    --bg-light: #000000;
    --text-dark: #ffffff;
    --white: #000000;
}

/* --- RESET & BASE --- */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Segoe UI', Tahoma, sans-serif;
    line-height: 1.6;
    background-color: var(--bg-light);
    color: var(--text-dark);
    font-size: var(--font-base);
    transition: var(--transition);
}

.container { padding: var(--spacing); max-width: 1200px; margin: 0 auto; }

/* --- HEADER & NAV --- */
header {
    background: var(--primary);
    color: var(--white);
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav { display: flex; justify-content: space-between; align-items: center; }

.accessibility-controls button {
    background: var(--white);
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: 4px;
    margin-left: 5px;
    font-weight: bold;
}

/* --- LAYOUT GRID (MODULAR) --- */
.grid-layout {
    display: grid;
    /* Altere aqui o número de colunas para Desktop */
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border: 2px solid transparent;
}

.high-contrast .card { border-color: var(--primary); }

/* --- ACORDEÃO (EXPANDABLES) --- */
.accordion-item { border-bottom: 1px solid var(--secondary); }
.accordion-header {
    width: 100%;
    padding: 1rem;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-dark);
    font-weight: bold;
    cursor: pointer;
}
.accordion-content { 
    display: none; 
    padding: 1rem; 
    background: rgba(0,0,0,0.05);
}
.accordion-content.active { display: block; }

/* --- CARROSSEL --- */
.carousel { overflow: hidden; position: relative; background: var(--white); border-radius: var(--radius); }
.carousel-track { display: flex; transition: transform 0.5s ease-in-out; }
.carousel-item { min-width: 100%; padding: 3rem; text-align: center; }

/* --- ANIMAÇÕES (SCROLL REVEAL) --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s all ease;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }