/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Layout ─────────────────────────────────────────────── */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: #f0f2f5;
}

.sidebar {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background: #fff;
    box-shadow: 2px 0 8px rgba(0,0,0,.10);
    overflow: hidden;
    z-index: 10;
}

.main {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* ── Sidebar header ─────────────────────────────────────── */
.sidebar-header {
    padding: 18px 16px 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    flex-shrink: 0;
}

.sidebar-header h1 { font-size: 18px; margin-bottom: 2px; }

.subtitle { font-size: 12px; opacity: .85; }

/* ── Data source panel ──────────────────────────────────── */
.data-source {
    flex-shrink: 0;
    border-bottom: 1px solid #e8eaed;
}

.data-source-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    background: #f8f9fa;
    border: none;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: #444;
    text-align: left;
    transition: background .15s;
    box-shadow: none;
}

.data-source-toggle:hover { background: #eef0ff; color: #667eea; }

.ds-chevron {
    font-size: 11px;
    color: #999;
    transition: color .15s;
}

.data-source-toggle:hover .ds-chevron { color: #667eea; }

.data-source-body {
    display: none;   /* toggled by JS */
    flex-direction: column;
    gap: 6px;
    padding: 10px 12px 12px;
    background: #fafafa;
    border-top: 1px solid #eee;
}

.ds-label {
    font-size: 11px;
    font-weight: 600;
    color: #777;
    margin-top: 4px;
}

.ds-input,
.ds-select {
    width: 100%;
    padding: 7px 10px;
    border: 1.5px solid #d1d5db;
    border-radius: 7px;
    font-size: 12px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    outline: none;
    background: #fff;
    color: #222;
    transition: border-color .2s;
}

.ds-input:focus,
.ds-select:focus { border-color: #667eea; }

.ds-select {
    appearance: auto;
    cursor: pointer;
}

.ds-note {
    font-size: 11px;
    color: #6b7280;
    line-height: 1.5;
    background: #fff;
    border: 1px solid #eceff5;
    border-radius: 6px;
    padding: 8px 10px;
    margin-top: 2px;
}

.ds-error {
    font-size: 11px;
    color: #c0392b;
    background: #fdf0ee;
    border: 1px solid #f5c6c0;
    border-radius: 6px;
    padding: 7px 10px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.ds-apply-btn {
    align-self: flex-end;
    padding: 7px 20px;
    border: none;
    border-radius: 7px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity .15s, transform .1s;
    box-shadow: none;
    margin-top: 2px;
}

.ds-apply-btn:hover:not(:disabled) { opacity: .88; transform: translateY(-1px); }
.ds-apply-btn:disabled { opacity: .55; cursor: default; transform: none; }

/* ── Controls ───────────────────────────────────────────── */
.controls {
    padding: 12px;
    border-bottom: 1px solid #e8eaed;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.search-input {
    width: 100%;
    padding: 8px 12px;
    border: 1.5px solid #d1d5db;
    border-radius: 8px;
    font-size: 13px;
    outline: none;
    transition: border-color .2s;
}

.search-input:focus { border-color: #667eea; }

/* ── Toggle ─────────────────────────────────────────────── */
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.toggle-label { font-size: 12px; color: #555; }

.toggle-wrap {
    position: relative;
    width: 42px;
    height: 22px;
    flex-shrink: 0;
}

.toggle-wrap input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: #ccc;
    border-radius: 22px;
    transition: background .3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform .3s;
    box-shadow: 0 1px 3px rgba(0,0,0,.25);
}

.toggle-wrap input:checked + .toggle-slider { background: #667eea; }
.toggle-wrap input:checked + .toggle-slider::before { transform: translateX(20px); }

/* ── Stats bar ──────────────────────────────────────────── */
.stats {
    padding: 7px 12px;
    font-size: 11px;
    color: #888;
    background: #f8f9fa;
    border-bottom: 1px solid #e8eaed;
    flex-shrink: 0;
}

/* ── Graph list ─────────────────────────────────────────── */
.graph-list {
    flex: 1;
    overflow-y: auto;
}

.graph-item {
    padding: 10px 14px;
    border-bottom: 1px solid #f0f0f0;
    cursor: pointer;
    transition: background .15s;
}

.graph-item:hover { background: #f5f7ff; }

.graph-item.active {
    background: #eef0ff;
    border-left: 3px solid #667eea;
    padding-left: 11px;
}

.item-title {
    font-size: 13px;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: #888;
}

.badge {
    padding: 1px 7px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .4px;
}

.badge-resolved     { background: #d1fae5; color: #065f46; }
.badge-unresolved   { background: #fee2e2; color: #991b1b; }
.badge-unsubmitted  { background: #fef3c7; color: #92400e; }
.badge-unknown      { background: #f3f4f6; color: #6b7280; }

/* ── Main pane ──────────────────────────────────────────── */
.graph-pane {
    flex: 1;
    position: relative;
    background: #fff;
    overflow: hidden;
}

.graph-pane iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* ── Shared placeholder ─────────────────────────────────── */
.placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: #aaa;
    font-size: 14px;
    pointer-events: none;
}

.placeholder-icon { font-size: 52px; opacity: .3; }

/* ── Spinner ─────────────────────────────────────────────── */
.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid #e5e7eb;
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin .8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }