/* ==========================================================================
   ESTILOS DA TELA DE AUTENTICAÇÃO (LOGIN)
   ========================================================================== */
:root {
    --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-gradient-start: #0f172a;
    --bg-gradient-end: #1e293b;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

body.auth-layout {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 1.5rem;
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

/* Card Principal de Login */
.card-login {
    background-color: #ffffff;
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* Cabeçalho do Card */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .logo-icon {
    font-size: 2.75rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.35rem 0;
}

.login-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Formulário de Login */
.form-login .form-group {
    margin-bottom: 1.25rem;
}

.form-login label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

/* Campos de Input com Ícones */
.input-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon i {
    position: absolute;
    left: 1rem;
    color: #94a3b8;
    font-size: 1rem;
    transition: color 0.2s;
}

.input-icon input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    font-size: 0.925rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}

.input-icon input:focus {
    background-color: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.input-icon input:focus + i,
.input-icon input:focus ~ i {
    color: var(--primary-color);
}

/* Botão Principal */
.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.85rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-block {
    width: 100%;
}

/* Alertas de Erro/Mensagens */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.alert-danger {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

/* Ajustes Responsivos para Telas Menores */
@media (max-width: 480px) {
    .card-login {
        padding: 2rem 1.5rem;
    }
}