:root {
    --bg-surface: #12141c;
    --border-color: #26293b;
    --accent-color: #0d6efd;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background-color: #0b0c10;
}

.bg-surface {
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
}

.login-banner {
    background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
    position: relative;
    border-left: 1px solid var(--border-color);
}

.brand-badge {
    width: 44px;
    height: 44px;
    background: var(--accent-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.text-gradient {
    background: linear-gradient(45deg, #ffffff, #93c5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-card {
    max-width: 400px;
}

.input-group-text, .form-control {
    background-color: #1a1d2d;
    border-color: var(--border-color);
    color: #fff;
}

    .form-control:focus {
        background-color: #1a1d2d;
        border-color: var(--accent-color);
        color: #fff;
        box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.15);
    }

.alert-custom {
    border-radius: 10px;
}

.alert-danger.alert-custom {
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #ea868f;
}

.alert-warning.alert-custom {
    background-color: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    color: #ffda6a;
}