/* assets/css/style.css */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;700;800;900&display=swap');

:root {
    /* Cores Principais */
    --cyan: #3d2b1f;
    --cyan-shade: #2a1d15;
    
    --green: #2e7d32;
    --green-shade: #1b5e20;
    
    --yellow: #ffc52a;
    --yellow-shade: #e6ab17;
    
    --orange: #FF6B00;
    --orange-shade: #d35b05;
    
    --red: #991b1b;
    --red-shade: #7f1d1d;

    /* Neutros */
    --text: #1c1917;
    --text-light: #777777;
    --bg-app: #FFFFFF;
    --border: #E5E5E5;
    --disabled: #E5E5E5;
    --disabled-text: #AFAFAF;

    /* Dimensões */
    --radius-btn: 16px;
}

* { 
    box-sizing: border-box; 
    -webkit-tap-highlight-color: transparent; 
}

body {
    font-family: 'Nunito', sans-serif;
    background-color: var(--bg-app);
    color: var(--text);
    margin: 0; 
    padding: 0;
    height: 100vh;
    overflow: hidden; /* App feel */
}

a { text-decoration: none; color: inherit; }
h1, h2, h3, p { margin: 0; }

/* --- COMPONENTES UI (Botões Estilo Duolingo) --- */

.btn-block {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: var(--radius-btn);
    font-family: 'Nunito', sans-serif;
    font-weight: 800;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    cursor: pointer;
    transition: all 0.1s;
    user-select: none;
    background-color: var(--green);
    color: white;
    box-shadow: 0 4px 0 var(--green-shade);
    border-bottom: 2px solid transparent; /* Evita pulo no layout */
}

.btn-block:active:not(:disabled) {
    transform: translateY(4px);
    box-shadow: none;
    border-bottom: 0;
    margin-top: 2px; /* Compensação visual */
}

.btn-block:disabled, .btn-block.disabled {
    background-color: var(--disabled);
    color: var(--disabled-text);
    box-shadow: none;
    cursor: not-allowed;
    transform: none;
}

/* Variantes de Cor */
.btn-primary {
    background-color: var(--cyan);
    box-shadow: 0 4px 0 var(--cyan-shade);
}
.btn-secondary {
    background-color: var(--orange);
    box-shadow: 0 4px 0 var(--orange-shade);
}
.btn-outline {
    background-color: transparent;
    border: 2px solid var(--border);
    box-shadow: 0 4px 0 var(--border);
    color: var(--text-light);
}