:root {
    --cor-primaria: #2563eb;
    --cor-primaria-clara: #3b82f6;
    --cor-texto: #ffffff;
    --cor-suave: #b5bfd4;
    --fundo-card: rgba(10, 20, 40, 0.75);
    --radius: 18px;
    --blur: 12px;
}

body {
    margin: 0;
    font-family: "Inter", sans-serif;
    background: linear-gradient(135deg, #0b1224 0%, #111c35 50%, #0b1224 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--cor-texto);
}

.bg-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
}

/* CARD CENTRAL */
.login-container {
    position: relative;
    width: 420px;
    background: var(--fundo-card);
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(var(--blur));
    animation: aparecer 0.6s ease forwards;
}

@keyframes aparecer {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* LOGO */
.logo {
    text-align: center;
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.logo span {
    color: var(--cor-primaria);
}

.sub {
    text-align: center;
    font-size: 15px;
    color: var(--cor-suave);
    margin-bottom: 28px;
}

/* INPUTS */
.campo {
    margin-bottom: 18px;
}

.campo label {
    font-size: 14px;
    margin-bottom: 6px;
    display: block;
    color: var(--cor-suave);
}

.campo label i {
    margin-right: 4px;
    color: var(--cor-primaria-clara);
}

.campo input {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 14px;
    color: white;
    outline: none;
}

.senha-group {
    position: relative;
}

.senha-group input {
    width: 100%;
}

.olho {
    position: absolute;
    right: 14px;
    top: 12px;
    font-size: 20px;
    cursor: pointer;
    color: var(--cor-suave);
}

/* BOTAO */
.btn-entrar {
    width: 100%;
    padding: 15px;
    margin-top: 10px;
    background: linear-gradient(135deg, var(--cor-primaria), var(--cor-primaria-clara));
    border-radius: var(--radius);
    border: none;
    font-size: 16px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: 0.25s;
}

.btn-entrar:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, var(--cor-primaria-clara), var(--cor-primaria));
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.5);
}

.login-feedback {
    margin: 10px 0 0;
    text-align: center;
    font-size: 14px;
    color: var(--cor-suave);
}

.login-feedback.ok {
    color: #4ade80;
}

.login-feedback.erro {
    color: #fca5a5;
}

.link-cadastro {
    margin-top: 18px;
    text-align: center;
    font-size: 14px;
    color: var(--cor-suave);
}

.link-cadastro a {
    color: var(--cor-primaria-clara);
    font-weight: 600;
}

.esqueci {
    text-align: center;
    margin-top: 10px;
}

.esqueci a {
    color: var(--cor-suave);
    font-size: 13px;
    text-decoration: none;
}

.esqueci a:hover {
    color: white;
}

/* WHATSAPP FLOAT BUTTON */
.whatsapp-btn {
    position: fixed;
    bottom: 22px;
    right: 22px;
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 34px;
    color: white;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    animation: flutuar 2s infinite ease-in-out;
    z-index: 99;
}

@keyframes flutuar {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-4px);
    }

    100% {
        transform: translateY(0);
    }
}

/* MOBILE */
@media (max-width: 480px) {
    .login-container {
        width: 90%;
        padding: 30px 25px;
    }
}