:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --accent-blue: #38bdf8;
    --glass-dark: rgba(15, 23, 42, 0.9);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: #f1f5f9;
    margin: 0;
    padding: 0;
    width: 100vw;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow-x: hidden;
}

/* Container para os efeitos de fundo */
.bg-decor {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.bg-decor::before {
    content: "";
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background-image: url('https://images.unsplash.com/photo-1486262715619-67b85e0b08d3?q=80&w=2072&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    opacity: 0.08;
    filter: grayscale(100%) brightness(0.6);
}

.bg-decor::after {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    width: 600px; height: 600px;
    background: var(--accent-blue);
    filter: blur(180px);
    opacity: 0.1;
    transform: translate(-50%, -50%);
}

.login-card {
    background: var(--glass-dark);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 32px;
    width: 90%;
    max-width: 450px;
    padding: 50px 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.6s ease-out;
    z-index: 10;
    margin: 20px auto;
}

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

.logo-login {
    height: 250px;
    margin-bottom: 30px;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.3));
}

.login-header h2 {
    font-weight: 800;
    font-size: 1.75rem;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.login-header p {
    color: #94a3b8;
    font-size: 0.95rem;
    margin-bottom: 35px;
}

.form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: #cbd5e1;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-group {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
}

.input-group:focus-within {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.1);
}

.input-group-text {
    background: transparent;
    border: none;
    color: var(--accent-blue);
    padding-left: 18px;
}

.form-control {
    background: transparent;
    border: none;
    color: white;
    padding: 12px 18px;
    font-size: 1rem;
}

.form-control:focus {
    background: transparent;
    color: white;
    box-shadow: none;
}

.form-control::placeholder {
    color: #475569;
}

.btn-login {
    background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    transition: all 0.3s;
    margin-top: 20px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(2, 132, 199, 0.3);
}

.btn-login:disabled {
    opacity: 0.7;
    transform: none;
}

.btn-back-home {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 30px;
    transition: color 0.3s;
}

.btn-back-home:hover {
    color: var(--accent-blue);
}

.alert {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #f87171;
    font-size: 0.85rem;
    border-radius: 12px;
    display: none;
    margin-bottom: 20px;
}

/* Esconder ícone olho nativo do Edge */
input::-ms-reveal, input::-ms-clear { display: none; }

/* Responsividade para Smartphones e Tablets Pequenos */
@media (max-width: 768px) {
    body {
        padding: 0;
        overflow-y: auto;
    }
    .login-card {
        padding: 40px 25px;
        border-radius: 28px;
        width: calc(100% - 30px);
        margin: 20px auto;
    }
    .logo-login {
        height: 140px;
        margin-bottom: 20px;
    }
    .login-header h2 {
        font-size: 1.5rem;
    }
    .btn-login {
        padding: 12px;
    }
}