:root {
    --ui-bg-page: #121722;
    --ui-bg-surface: linear-gradient(145deg, #1e2330, #121621);
    --ui-bg-surface-soft: linear-gradient(145deg, #171c27, #111620);
    --ui-border-soft: rgba(255, 255, 255, 0.08);
    --ui-text-main: #e6edf7;
    --ui-text-muted: #9aa3b2;
    --ui-accent: #dc3545;
    --ui-accent-soft: rgba(220, 53, 69, 0.18);
    --ui-info: #0dcaf0;
    --ui-warning: #ffc107;
    --ui-success: #28a745;
    --ui-radius-md: 12px;
    --ui-radius-lg: 18px;
    --ui-shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.45);
    --ui-shadow-strong: 0 14px 34px rgba(0, 0, 0, 0.52);
}

.ui-card {
    background: var(--ui-bg-surface);
    border: 1px solid var(--ui-border-soft);
    border-radius: var(--ui-radius-lg);
    box-shadow: var(--ui-shadow-soft);
}

.ui-card-soft {
    background: var(--ui-bg-surface-soft);
    border: 1px solid var(--ui-border-soft);
    border-radius: var(--ui-radius-lg);
    box-shadow: var(--ui-shadow-soft);
}

.ui-card-interactive {
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.ui-card-interactive:hover {
    transform: translateY(-3px);
    border-color: rgba(220, 53, 69, 0.35);
    box-shadow: var(--ui-shadow-strong);
}

.ui-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 999px;
    padding: 0.14rem 0.58rem;
    font-size: 0.75rem;
    border: 1px solid transparent;
}

.ui-badge-neutral {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--ui-text-muted);
}

.ui-badge-danger {
    background: rgba(220, 53, 69, 0.16);
    border-color: rgba(220, 53, 69, 0.3);
    color: #ffb2ba;
}

.ui-section-title {
    margin: 0;
    color: var(--ui-text-main);
    font-weight: 700;
}

.ui-section-subtitle {
    margin: 0;
    color: var(--ui-text-muted);
}

.ui-auth-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--ui-text-main);
}

.ui-auth-card {
    width: 100%;
    max-width: 520px;
    padding: 1.6rem;
}

.ui-auth-title {
    color: var(--ui-text-main);
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.ui-auth-subtitle {
    color: var(--ui-text-muted);
    font-size: 0.92rem;
    margin-bottom: 0;
}

.ui-auth-floating .form-control,
.ui-auth-input-group .form-control {
    background: rgba(255, 255, 255, 0.03);
    color: var(--ui-text-main);
    border: 1px solid rgba(255, 255, 255, 0.14);
}

.ui-auth-floating .form-control:focus,
.ui-auth-input-group .form-control:focus {
    border-color: rgba(13, 202, 240, 0.45);
    box-shadow: 0 0 0 0.2rem rgba(13, 202, 240, 0.15);
}

.ui-auth-floating label {
    color: #a6b4c8;
}

.ui-auth-input-group .input-group-text {
    background: rgba(255, 255, 255, 0.06);
    color: #95d9ea;
    border: 1px solid rgba(255, 255, 255, 0.14);
}

.ui-auth-primary-btn {
    width: 100%;
    font-weight: 600;
    box-shadow: var(--ui-shadow-soft);
}

.ui-auth-link {
    color: #dce8f8;
    text-decoration: none;
}

.ui-auth-link:hover {
    color: #ffffff;
}