body {
    background-color: rgb(22, 22, 22);
}

:root {
    --bg: #0f1720;
    /* fundo escuro */
    --card: linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    --accent: #0ea5a4;
    /* cor principal (teal) */
    --glass: rgba(255, 255, 255, 0.03);
}

html,
body {
    height: 100%;
    background: radial-gradient(1200px 600px at 10% 10%, rgba(14, 165, 164, 0.08), transparent),
        radial-gradient(1000px 500px at 90% 90%, rgba(79, 70, 229, 0.04), transparent),
        var(--bg);
    font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    color: #e6eef0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header (simples) */
.navbar-brand {
    font-weight: 700;
    color: #fff !important;
}

.navbar {
    background: transparent;
}

/* Central container */
.login-hero {
    min-height: calc(100vh - 72px);
    /* se tiver header */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1rem;
}

.card-auth {
    width: 100%;
    max-width: 420px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 14px;
    background: var(--card);
    box-shadow: 0 8px 30px rgba(2, 6, 23, 0.6);
    padding: 1.25rem;
    backdrop-filter: blur(6px) saturate(120%);
}

.brand {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 0.5rem;
}

.logo img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
}

.brand .logo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #5eead4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #042f2f;
    font-weight: 800;
    box-shadow: 0 6px 18px rgba(14, 165, 164, 0.08);
}

.brand h1 {
    font-size: 1.05rem;
    margin: 0;
    font-weight: 700;
    color: #f8fafc;
}

.brand p {
    margin: 0;
    font-size: 0.8rem;
    color: rgba(230, 238, 240, 0.75);
}

.form-floating>.form-control,
.form-floating>.form-select {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: #e6eef0;
}

.form-floating>.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.15rem rgba(14, 165, 164, 0.12);
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent), #06b6d4);
    border: none;
    box-shadow: 0 8px 18px rgba(6, 182, 212, 0.08);
    padding: 0.6rem 1rem;
    font-weight: 600;
    border-radius: 10px;
}

.btn-outline {
    color: #cfecee;
    border-color: rgba(255, 255, 255, 0.06);
    background: transparent;
    border-radius: 10px;
}

.muted-link {
    color: rgba(230, 238, 240, 0.7);
    font-size: 0.9rem;
}

.divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
}

.divider::before,
.divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 2px;
}

footer {
    text-align: center;
    margin-top: 20px;
    padding: 8px;
    font-size: 14px;
}

/* small screens tweaks */
@media (max-width: 420px) {
    .card-auth {
        padding: 1rem;
        border-radius: 12px;
    }

    .brand h1 {
        font-size: 1rem;
    }
}

/* helper */
.text-quiet {
    color: rgba(230, 238, 240, 0.65);
    font-size: 0.9rem;
}

.small-gap {
    gap: .5rem;
}