/* ================================================================
   ELEMENT DETAILS — Structured View (right-panel Elements tab)

   Restyles the #element-details pane with a clear visual hierarchy:
   header card (current element badge + actions) + collapsible
   Identity / Position / specific sections.

   Owns ALL .ecbt-edetails-* classes.
   AGPL-3.0-only. (c) 2026 Calvin Stefan Iost.
   ================================================================ */

/* ---------- Header card: current element indicator ---------- */
.ecbt-edetails-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 10px;
    margin: 0 0 10px 0;
    background: linear-gradient(
        180deg,
        rgba(var(--primary-rgb, 56, 189, 248), 0.10),
        rgba(var(--primary-rgb, 56, 189, 248), 0.02)
    );
    border: 1px solid rgba(var(--primary-rgb, 56, 189, 248), 0.25);
    border-left: 3px solid var(--primary-500, #38bdf8);
    border-radius: 6px;
}

.ecbt-edetails-header-main {
    flex: 1;
    min-width: 0; /* allow ellipsis */
}

.ecbt-edetails-header-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--neutral-50, #f8fafc);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.2;
}

.ecbt-edetails-header-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    font-size: 10px;
}

.ecbt-edetails-family-badge {
    display: inline-block;
    padding: 1px 6px;
    background: var(--neutral-700, #334155);
    color: var(--neutral-100, #f1f5f9);
    border-radius: 3px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.ecbt-edetails-id-badge {
    font-family: var(--font-mono, ui-monospace, monospace);
    color: var(--neutral-400, #94a3b8);
    font-size: 10px;
    padding: 1px 4px;
    background: var(--neutral-800, #1e293b);
    border-radius: 3px;
}

.ecbt-edetails-header-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.ecbt-edetails-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    padding: 0;
    background: var(--neutral-800, #1e293b);
    border: 1px solid var(--neutral-700, #334155);
    border-radius: 4px;
    color: var(--neutral-200, #e2e8f0);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.ecbt-edetails-action-btn:hover {
    background: var(--neutral-700, #334155);
    border-color: var(--primary-500, #38bdf8);
    color: var(--primary-300, #7dd3fc);
}

.ecbt-edetails-action-btn:focus-visible {
    outline: 2px solid var(--primary-500, #38bdf8);
    outline-offset: 1px;
}

.ecbt-edetails-action-danger:hover {
    border-color: var(--accent-red, #ef4444);
    color: var(--accent-red, #ef4444);
}

/* ---------- Collapsible sections used inside details ---------- */
.ecbt-edetails-section {
    margin-bottom: 8px;
}

/* ---------- Position coordinate grid ---------- */
.ecbt-edetails-coord-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.ecbt-edetails-coord {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 6px 4px;
    background: var(--neutral-800, #1e293b);
    border-radius: 4px;
    border: 1px solid var(--neutral-700, #334155);
}

.ecbt-edetails-coord-label {
    font-size: 9px;
    font-weight: 600;
    color: var(--neutral-400, #94a3b8);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.ecbt-edetails-coord-value {
    font-family: var(--font-mono, ui-monospace, monospace);
    font-variant-numeric: tabular-nums;
    font-size: 12px;
    color: var(--neutral-100, #f1f5f9);
    margin-top: 2px;
}

/* ---------- Empty state ---------- */
.ecbt-edetails-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 12px;
    text-align: center;
    color: var(--neutral-500, #64748b);
    gap: 8px;
}

.ecbt-edetails-empty p {
    font-size: 11px;
    margin: 0;
    line-height: 1.4;
}

/* ---------- Mobile responsive ---------- */
@media (max-width: 600px) {
    .ecbt-edetails-header {
        flex-wrap: wrap;
    }

    .ecbt-edetails-header-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 4px;
    }

    .ecbt-edetails-coord-grid {
        gap: 4px;
    }

    .ecbt-edetails-coord-value {
        font-size: 11px;
    }
}