.detail-panel-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    justify-content: flex-end;
    align-items: stretch;
    background: rgba(16, 24, 40, 0.52);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 180ms ease;
}

.detail-panel-backdrop[hidden] {
    display: none !important;
    pointer-events: none !important;
}

.detail-panel-backdrop.open {
    opacity: 1;
}

.detail-panel {
    width: min(44rem, calc(100vw - 1rem));
    max-width: 100%;
    height: 100%;
    background: var(--bg-card);
    color: var(--text-primary);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    transform: translateX(1rem);
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.detail-panel-backdrop.open .detail-panel {
    transform: translateX(0);
}

.detail-panel-header,
.detail-panel-footer {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.detail-panel-footer {
    border-bottom: 0;
    border-top: 1px solid var(--border);
    margin-top: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: space-between;
}

.detail-panel-header {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    justify-content: space-between;
}

.detail-panel-kicker {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.detail-panel-title {
    margin: 0;
    font-size: clamp(1.2rem, 2vw, 1.65rem);
}

.detail-panel-subtitle {
    margin-top: 0.35rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.detail-panel-close {
    flex: 0 0 auto;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg-main);
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    line-height: 1;
}

.detail-panel-close:hover,
.detail-panel-close:focus-visible,
.detail-panel-action:hover,
.detail-panel-action:focus-visible,
.detail-panel-ask:hover,
.detail-panel-ask:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.18);
}

.detail-panel-body {
    padding: 1rem 1.25rem 1.25rem;
    overflow: auto;
    flex: 1;
}

.detail-panel-meta {
    padding: 0 1.25rem 0.75rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.detail-panel-loading,
.detail-panel-empty,
.detail-panel-error {
    padding: 1rem;
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    background: rgba(0, 120, 212, 0.03);
}

.detail-panel-error {
    color: var(--danger);
    background: rgba(209, 52, 56, 0.05);
}

.detail-panel-section + .detail-panel-section {
    margin-top: 1rem;
}

.detail-panel-section h3 {
    font-size: 0.95rem;
    margin-bottom: 0.6rem;
}

.detail-panel-fields {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.02);
}

.detail-panel-fields th,
.detail-panel-fields td {
    text-align: left;
    padding: 0.7rem 0.85rem;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.detail-panel-fields th {
    width: 35%;
    color: var(--text-secondary);
    font-weight: 600;
    background: rgba(0, 0, 0, 0.02);
}

.detail-panel-fields tr:last-child th,
.detail-panel-fields tr:last-child td {
    border-bottom: 0;
}

.detail-panel-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.detail-panel-action,
.detail-panel-ask {
    border: 1px solid var(--border);
    background: var(--bg-main);
    color: var(--text-primary);
    border-radius: 999px;
    padding: 0.55rem 0.9rem;
    cursor: pointer;
    font-weight: 600;
    transition: transform 120ms ease, background 120ms ease;
}

.detail-panel-action:hover,
.detail-panel-ask:hover {
    transform: translateY(-1px);
}

.detail-panel-ask {
    background: linear-gradient(135deg, rgba(0, 120, 212, 0.16), rgba(80, 230, 255, 0.12));
    border-color: rgba(0, 120, 212, 0.24);
}

.detail-panel-freshness {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.55rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg-main);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 600;
}

@media (max-width: 720px) {
    .detail-panel-backdrop {
        align-items: flex-end;
    }

    .detail-panel {
        width: 100vw;
        height: min(92vh, 100vh);
        border-left: 0;
        border-top: 1px solid var(--border);
        border-radius: 18px 18px 0 0;
        transform: translateY(1rem);
    }

    .detail-panel-backdrop.open .detail-panel {
        transform: translateY(0);
    }

    .detail-panel-header,
    .detail-panel-body,
    .detail-panel-meta,
    .detail-panel-footer {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .detail-panel-fields th,
    .detail-panel-fields td {
        padding: 0.65rem 0.7rem;
    }
}