:root {
    --primary-color: #0b1e42; /* Azul Escuro */
    --secondary-color: #ffb800; /* Dourado / Amarelo Escuro */
    --accent-color: #007aff; /* Azul claro para ações */
    --success-color: #28a745;
    --danger-color: #dc3545;
    --text-color: #333;
    --text-light: #fff;
    --bg-color: #f4f6f9;
    
    --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--primary-color);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Utilitários */
.container {
    width: 100%;
    max-width: 480px; /* Estilo Mobile First */
    margin: 0 auto;
    padding: 20px;
    background-color: rgba(0,0,0,0.2);
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Botões com efeito 3D */
.btn {
    display: inline-block;
    padding: 15px 20px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: transform 0.1s, box-shadow 0.1s;
    width: 100%;
    margin-bottom: 15px;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    box-shadow: 0 4px 0 #cc9400;
}

.btn-primary:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 #cc9400;
}

.btn-outline {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid rgba(255,255,255,0.3);
}

.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }

/* Forms */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: none;
    font-size: 1rem;
    background: rgba(255,255,255,0.9);
}

/* Animações leves */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}