/* Premium auctions + shell layout (DE/EN UI) */
:root {
    --premium-bg: #0b1020;
    --premium-surface: #121a30;
    --premium-accent: #7c5cff;
    --premium-accent-2: #2fd1c5;
    --premium-header-h: 64px;
}

html,
body {
    height: 100%;
}

body.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    background: radial-gradient(1200px 420px at 15% -8%, rgba(124, 92, 255, 0.28), transparent 58%),
        radial-gradient(900px 320px at 92% -18%, rgba(47, 209, 197, 0.2), transparent 55%),
        var(--premium-bg) !important;
    color: #e7ecff;
}

.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    min-height: var(--premium-header-h);
    background: rgba(10, 14, 28, 0.92) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(124, 92, 255, 0.35) !important;
}

.app-header .navbar-brand,
.app-header .nav-link {
    color: #eef1ff !important;
}

.app-header .nav-link:hover {
    color: #fff !important;
    opacity: 0.92;
}

.app-header .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.35);
    color: #eef1ff;
}

.app-header .btn-outline-light.active {
    background: linear-gradient(135deg, var(--premium-accent), var(--premium-accent-2));
    border-color: transparent;
    color: #0b1020;
}

.app-header .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.35);
}

.app-header .navbar-toggler-icon {
    filter: invert(1);
}

.app-main {
    flex: 1 0 auto;
    padding-top: calc(var(--premium-header-h) + 1.25rem);
    padding-bottom: 2rem;
}

.app-footer {
    flex-shrink: 0;
    background: rgba(10, 14, 28, 0.95) !important;
    border-color: rgba(124, 92, 255, 0.25) !important;
    color: #aeb8d9;
}

.premium-brand-icon {
    display: inline-flex;
    width: 2rem;
    height: 2rem;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--premium-accent), var(--premium-accent-2));
    color: #0b1020;
    font-size: 1.1rem;
}

.navbar.bg-body,
.card,
.list-group-item {
    background: rgba(18, 26, 48, 0.94) !important;
    border: 1px solid rgba(124, 92, 255, 0.22) !important;
    color: #e7ecff;
}

.text-muted,
.small {
    color: #aeb8d9 !important;
}

.card {
    border-radius: 14px;
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.35);
}

.btn-primary {
    background: linear-gradient(135deg, var(--premium-accent), var(--premium-accent-2));
    border: 0;
    color: #0b1020;
    font-weight: 600;
}

.btn-primary:hover {
    filter: brightness(1.06);
    color: #0b1020;
}

.btn-outline-primary {
    border-color: rgba(124, 92, 255, 0.55);
    color: #d9deff;
}

.btn-outline-primary:hover {
    background: rgba(124, 92, 255, 0.15);
    color: #fff;
}

.table {
    --bs-table-bg: transparent;
    --bs-table-color: #e7ecff;
    --bs-table-striped-bg: rgba(255, 255, 255, 0.04);
}

a {
    color: #c8d4ff;
}

.premium-hero {
    background: linear-gradient(125deg, rgba(124, 92, 255, 0.28), rgba(47, 209, 197, 0.16));
    border: 1px solid rgba(124, 92, 255, 0.4);
    border-radius: 18px;
    position: relative;
    overflow: hidden;
}

.premium-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(400px 120px at 100% 0%, rgba(255, 255, 255, 0.06), transparent 70%);
    pointer-events: none;
}

.premium-kpi-card {
    border-radius: 14px;
    padding: 1rem 1.1rem;
    background: rgba(8, 12, 24, 0.55);
    border: 1px solid rgba(124, 92, 255, 0.2);
    height: 100%;
}

.premium-kpi-card .kpi-label {
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #9aa7d4;
}

.premium-kpi-card .kpi-value {
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.2;
    background: linear-gradient(90deg, #fff, #b8c7ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.premium-cta-row .btn {
    border-radius: 10px;
}

.form-control,
.form-select {
    background: rgba(8, 12, 24, 0.65);
    border-color: rgba(124, 92, 255, 0.25);
    color: #e7ecff;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--premium-accent);
    box-shadow: 0 0 0 0.2rem rgba(124, 92, 255, 0.2);
    background: rgba(8, 12, 24, 0.85);
    color: #fff;
}

.list-group-item.active {
    background: linear-gradient(135deg, rgba(124, 92, 255, 0.35), rgba(47, 209, 197, 0.2)) !important;
    border-color: rgba(124, 92, 255, 0.45) !important;
}