/* ============================================
   Estilo base - Sistema JC Celulares
   ============================================ */
:root {
    --cor-primaria: #1A29B3;
    --cor-secundaria: #F41C2B;
    --fundo-escuro: #0d0f1a;
    --fundo-painel: #161927;
    --texto-claro: #e8e9f0;
    --texto-suave: #9698a8;
    --borda: #262a3d;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--fundo-escuro);
    color: var(--texto-claro);
    min-height: 100vh;
}

/* --- Tela de login --- */
.tela-login {
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 50% 0%, #1a1d35 0%, #0d0f1a 70%);
}

.caixa-login {
    background: var(--fundo-painel);
    border: 1px solid var(--borda);
    border-radius: 14px;
    padding: 40px 36px;
    width: 100%;
    max-width: 380px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: surge 0.5s ease;
}

@keyframes surge {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.logo-login {
    max-width: 130px;
    margin-bottom: 16px;
}

.caixa-login h1 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--texto-claro);
}

.caixa-login label {
    display: block;
    text-align: left;
    font-size: 13px;
    color: var(--texto-suave);
    margin: 14px 0 6px;
}

.caixa-login input {
    width: 100%;
    padding: 11px 13px;
    background: var(--fundo-escuro);
    border: 1px solid var(--borda);
    border-radius: 8px;
    color: var(--texto-claro);
    font-size: 14px;
    transition: border-color 0.2s;
}

.caixa-login input:focus {
    outline: none;
    border-color: var(--cor-primaria);
}

.caixa-login button {
    width: 100%;
    margin-top: 24px;
    padding: 12px;
    background: var(--cor-primaria);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: filter 0.2s, transform 0.1s;
}

.caixa-login button:hover { filter: brightness(1.15); }
.caixa-login button:active { transform: scale(0.98); }

.alerta-erro {
    background: rgba(244, 28, 43, 0.12);
    border: 1px solid var(--cor-secundaria);
    color: #ff8a93;
    padding: 10px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 8px;
}