.ttb-bridge-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    margin-top: 20px;
}

.ttb-bridge-card {
    --ttb-accent: #335cff;
    --ttb-accent-dark: #172554;
    --ttb-ink: #0f172a;
    --ttb-soft: #eef4ff;
    --ttb-surface: #ffffff;
    --ttb-border: rgba(15, 23, 42, 0.1);
    background:
        radial-gradient(circle at top right, rgba(51, 92, 255, 0.12), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
    border: 1px solid var(--ttb-border);
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
}

.ttb-bridge-head {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.ttb-bridge-head h2 {
    margin: 0;
    color: #b11f28;
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    line-height: 1.05;
}

.ttb-bridge-eyebrow {
    margin: 0 0 8px;
    color: #5b6472;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 700;
}

.ttb-bridge-copy {
    max-width: 68ch;
    color: #334155;
}

.ttb-bridge-panel {
    margin-top: 20px;
    padding: 18px;
    border-radius: 18px;
    background: linear-gradient(180deg, #f8fbff 0%, #eef4ff 100%);
    border: 1px solid rgba(51, 92, 255, 0.08);
}

.ttb-bridge-panel--muted {
    background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
}

.ttb-bridge-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.ttb-bridge-actions--spaced {
    margin-top: 18px;
}

.ttb-bridge-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border-radius: 999px;
    background: linear-gradient(135deg, #355dff 0%, #4d76ff 100%);
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.01em;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 12px 24px rgba(51, 92, 255, 0.22);
}

.ttb-bridge-button:hover,
.ttb-bridge-button:focus {
    color: #ffffff;
    transform: translateY(-1px);
}

.ttb-bridge-button--secondary {
    background: linear-gradient(135deg, #121826 0%, #243045 100%);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 12px 24px rgba(15, 23, 42, 0.18);
}

.ttb-bridge-frame {
    width: 100%;
    border: 0;
    border-radius: 18px;
    background: #f6f7f7;
    margin-top: 18px;
    box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.18);
}

.ttb-bridge-status {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid #dcdcde;
}

.ttb-bridge-kv {
    display: grid;
    gap: 10px;
    margin: 16px 0;
}

.ttb-bridge-frontend {
    margin: 24px 0;
}

.ttb-bridge-inline-note {
    margin: 14px 0 0;
    color: #4b5563;
}

.ttb-schedule-shell .ttb-bridge-head,
.ttb-system-shell .ttb-bridge-head {
    margin-bottom: 18px;
}

.ttb-schedule-frame-wrap,
.ttb-system-frame-wrap {
    position: relative;
}

.ttb-schedule-frame,
.ttb-system-frame {
    margin-top: 0;
}

.ttb-system-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.ttb-system-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 999px;
    background: #eef2ff;
    border: 1px solid rgba(51, 92, 255, 0.14);
    color: #1e293b;
    text-decoration: none;
    font-weight: 700;
}

.ttb-system-chip:hover,
.ttb-system-chip:focus {
    color: #0f172a;
}

.ttb-system-chip.is-active {
    background: linear-gradient(135deg, #121826 0%, #22314d 100%);
    border-color: transparent;
    color: #ffffff;
}

.ttb-system-summary {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 18px;
    padding: 18px;
    border-radius: 18px;
    background: linear-gradient(180deg, #f8fbff 0%, #edf3ff 100%);
    border: 1px solid rgba(51, 92, 255, 0.08);
}

.ttb-system-current-label {
    margin: 0 0 6px;
    font-size: 1.05rem;
    font-weight: 800;
    color: #0f172a;
}

.ttb-system-current-copy {
    margin: 0;
    color: #475569;
}

.ttb-system-summary-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

@media (max-width: 782px) {
    .ttb-bridge-card {
        padding: 22px;
        border-radius: 20px;
    }

    .ttb-system-summary {
        align-items: flex-start;
    }
}