/* ================================================================
   panels.css
   RepoPatch Studio CSS -- split from app.css by css_split.py
   Load order: base.css -> components.css -> panels.css
   ================================================================ */

/* -- TERMINAL PANEL -- */


.terminal-panel {
    overflow: hidden;
}

.terminal-log {
    flex: 1;
    overflow-y: auto;
    /* Flush to panel edges — no outer margin, inner padding only */
    margin: 0;
    padding: 10px 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    background: var(--bg-deep);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.log-entry {
    display: flex;
    gap: 10px;
    padding: 2px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.log-entry:last-child {
    border-bottom: none;
}

.log-time {
    color: var(--muted);
    flex-shrink: 0;
    font-size: 11px;
    margin-top: 1px;
}

.log-level {
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 600;
    margin-top: 1px;
    min-width: 48px;
}

.log-level.info {
    color: var(--accent);
}

.log-level.warning {
    color: var(--warning);
}

.log-level.error {
    color: var(--danger);
}

.log-message {
    color: var(--text);
    word-break: break-word;
}

/* -- PATCH REVIEW PANE -- */


.code-block {
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre;
    color: var(--text);
}

/* -- LOAD STAGE UI -- */


.load-section {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.load-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.load-field label {
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.load-input,
.load-textarea {
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    color: var(--text);
    font-size: 13px;
    transition: border-color var(--t);
}

.load-input:focus,
.load-textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.load-textarea {
    resize: vertical;
    min-height: 140px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
}

.load-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.load-btn {
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background var(--t), border-color var(--t), color var(--t), opacity var(--t);
}

.load-btn--primary {
    background: var(--accent);
    color: var(--on-accent);
    /* token — dark text on cyan */
    border-color: var(--accent);
}

.load-btn--primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.load-btn--secondary {
    background: var(--surface-2);
    color: var(--text);
    border-color: var(--border);
}

.load-btn--secondary:hover {
    border-color: var(--accent);
}

/* LOAD PANEL OVERLAY */

.load-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

.load-overlay.hidden {
    display: none;
}

.load-overlay:not(.hidden) {
    display: flex !important;
}

.load-dialog {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    width: min(1280px, calc(100vw - 40px));
    min-height: 80vh;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow: hidden;
}

.load-dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--border);
}

.load-dialog-header h2 {
    margin: 0;
    font-size: 16px;
    color: var(--text);
}

.load-dialog-close {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
}

.load-dialog-close:hover {
    color: var(--text);
    background: var(--surface-2);
}

.load-dialog-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex: 1;
    overflow-y: auto;
}

.load-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.load-field label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--muted);
    font-weight: 600;
}

.load-field input[type="text"] {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    padding: 10px 12px;
    font-size: 14px;
    width: 100%;
    outline: none;
    transition: border-color 0.15s;
}

.load-field input[type="text"]:focus {
    border-color: var(--accent);
}

.load-field input[type="text"]::placeholder {
    color: var(--muted);
    opacity: 0.7;
}

.load-source-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 4px;
}

.load-source-tab {
    background: none;
    border: none;
    color: var(--muted);
    border-radius: 7px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: center;
}

.load-source-tab.active {
    background: var(--surface);
    color: var(--text);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.load-source-panel {
    display: none;
    flex-direction: column;
    gap: 8px;
}

.load-source-panel.visible,
.load-source-panel:not(.load-row--hidden) {
    display: flex;
}

.load-row--hidden {
    display: none !important;
}

.load-file-row {
    display: flex;
    gap: 8px;
    align-items: stretch;
}

.load-file-row input[type="text"] {
    flex: 1;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    padding: 10px 12px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s;
}

.load-file-row input[type="text"]:focus {
    border-color: var(--accent);
}

.load-browse-btn {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--muted);
    padding: 0 14px;
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.15s, color 0.15s;
}

.load-browse-btn:hover {
    border-color: var(--accent);
    color: var(--text);
}

.load-browse-btn:disabled,
.load-browse-btn[disabled] {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

.load-paste-area {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.55;
    padding: 12px;
    min-height: 180px;
    resize: vertical;
    width: 100%;
    outline: none;
    transition: border-color 0.15s;
    box-sizing: border-box;
}

.load-paste-area:focus {
    border-color: var(--accent);
}

.load-paste-area::placeholder {
    color: var(--muted);
    opacity: 0.6;
}

.load-hint {
    font-size: 12px;
    color: var(--muted);
    margin: 0;
}

.load-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.35);
    border-radius: 8px;
    color: var(--danger);
    font-size: 13px;
    padding: 10px 14px;
    display: none;
}

.load-error.visible {
    display: block;
}

/* -- IMPORT — zip upload drop-zone -- */


.import-drop-zone {
    position: relative;
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-deep);
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--t), background var(--t);
}

.import-drop-zone:hover,
.import-drop-zone:focus {
    outline: none;
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 6%, var(--bg-deep));
}

.import-drop-zone--drag-over {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 12%, var(--bg-deep));
}

.import-drop-zone--selected {
    border-color: var(--success);
}

.import-drop-zone-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.import-drop-zone-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    pointer-events: none;
}

.import-drop-zone-icon {
    font-size: 28px;
    line-height: 1;
}

.import-drop-zone-label {
    font-size: 13px;
    color: var(--text);
}

.import-drop-zone-label code {
    color: var(--accent);
    font-family: var(--font-mono);
}

.import-drop-zone-limit {
    font-size: 11px;
    color: var(--muted);
}

.import-drop-zone-filename {
    font-size: 13px;
    font-weight: 600;
    color: var(--success);
}

.import-status {
    font-size: 13px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--surface-2);
}

.import-status--ok {
    border-color: var(--success);
    color: var(--success);
}

.import-status--error {
    border-color: var(--danger);
    color: var(--danger);
}

.import-status--uploading {
    color: var(--muted);
}

.import-result {
    font-size: 12px;
}

.import-result-workspace {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px 14px;
    background: var(--surface-2);
    border: 1px solid var(--success);
    border-radius: var(--radius-sm);
}

.import-result-row {
    display: flex;
    gap: 10px;
    font-size: 12px;
}

.import-result-key {
    color: var(--muted);
    min-width: 90px;
    flex-shrink: 0;
}

.import-result-value {
    color: var(--text);
    word-break: break-all;
}

/* -- IMPORT / DIFF LOADER — two-card grid layout -- */

.import-loader-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--radius-lg, 14px);
    align-items: start;
}

@media (max-width: 640px) {
    .import-loader-grid {
        grid-template-columns: 1fr;
    }
}

.import-loader-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-deep);
}

.import-loader-card--diff {
    border-color: color-mix(in srgb, var(--warning) 35%, var(--border));
}

.import-loader-card-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--on-accent);
    align-self: flex-start;
}

.import-loader-card-badge--import {
    background: var(--accent);
}

.import-loader-card-badge--diff {
    background: var(--warning);
}

/* -- GitHub import -- */

.import-loader-card-badge--github {
    background: color-mix(in srgb, var(--purple) 12%, var(--bg-deep));
    color: var(--purple);
}

/* GitHub import card inner UI */
.github-step-pane {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.github-step-pane[hidden] {
    display: none;
}

.github-picker-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Action button used by Sign in / Connect / Import Repository in the
   GitHub card. Themed via accent so it stays visible in both modes. */
.import-action-btn {
    width: 100%;
    padding: 8px 14px;
    background: var(--accent);
    color: var(--on-accent);
    border: 1px solid var(--accent);
    border-radius: var(--radius-sm);
    font-size: .82rem;
    font-family: var(--font-body);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--t), border-color var(--t);
}

.import-action-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.import-action-btn:disabled {
    opacity: .45;
    cursor: default;
}

.github-select {
    width: 100%;
    padding: 8px 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: .82rem;
    font-family: var(--font-body);
    outline: none;
    transition: border-color var(--t);
    cursor: pointer;
}

/* Browsers don't reliably inherit color/bg from <select> to <option>;
   set them explicitly so the dropdown list also themes correctly. */
.github-select option {
    background: var(--surface);
    color: var(--text);
}

.github-select:focus {
    border-color: var(--accent);
}

.github-select:disabled {
    opacity: .45;
    cursor: default;
}

.github-disconnect-btn {
    background: none;
    border: none;
    font-size: .72rem;
    color: var(--muted);
    cursor: pointer;
    text-align: left;
    padding: 2px 0;
    transition: color var(--t);
}

.github-disconnect-btn:hover {
    color: var(--danger);
}

.github-stub-hint,
.github-signin-hint {
    font-size: .8rem;
    color: var(--muted);
    font-style: italic;
    margin-bottom: 8px;
}

.github-progress-msg {
    font-size: .82rem;
    color: var(--muted);
    font-family: var(--font-body);
    animation: pulse-text 1.4s ease-in-out infinite;
}

@keyframes pulse-text {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .45;
    }
}

/* -- DIFF SCREEN — staged comparison view -- */
.diff-screen-pane {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 4px 0;
}

.diff-screen-header {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.diff-mode-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: var(--warning);
    color: var(--on-accent);
    flex-shrink: 0;
}

.diff-screen-original-label {
    font-size: 13px;
    color: var(--text);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.diff-screen-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.import-drop-zone--compare {
    padding: 44px 20px;
    border-color: color-mix(in srgb, var(--warning) 40%, var(--border));
}

.import-drop-zone--compare:hover,
.import-drop-zone--compare:focus {
    border-color: var(--warning);
    background: color-mix(in srgb, var(--warning) 6%, var(--bg-deep));
}

.import-drop-zone--compare.import-drop-zone--drag-over {
    border-color: var(--warning);
    background: color-mix(in srgb, var(--warning) 12%, var(--bg-deep));
}

.import-drop-zone--diff:hover,
.import-drop-zone--diff:focus {
    border-color: var(--warning);
    background: color-mix(in srgb, var(--warning) 6%, var(--bg-deep));
}

/* -- Feature banner ticker -- */

/* ── Beta mode banner ───────────────────────────────────────────────────── */
/* Shown when LAUNCH_PROMO_ALL_PAID is on. Sits above the feature marquee. */
.beta-mode-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 16px;
    background: linear-gradient(
        90deg,
        color-mix(in srgb, var(--acid) 18%, var(--bg-deep)),
        color-mix(in srgb, var(--acid) 8%,  var(--bg-deep))
    );
    border-bottom: 1px solid color-mix(in srgb, var(--acid) 35%, var(--border));
    flex-shrink: 0;
    user-select: none;
}

.beta-mode-pill {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--bg-deep);
    background: var(--acid);
    padding: 3px 10px;
    border-radius: 3px;
    flex-shrink: 0;
}

.beta-mode-text {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--acid);
}

.feature-banner {
    overflow: hidden;
    height: 28px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    background: var(--bg-deep);
    border-bottom: 1px solid color-mix(in srgb, var(--acid) 20%, var(--border));
    user-select: none;
}

.feature-banner-track {
    display: flex;
    align-items: center;
    white-space: nowrap;
    animation: banner-scroll 90s linear infinite;
    will-change: transform;
}

.feature-banner-track:hover {
    animation-play-state: paused;
}

.feature-banner-item {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--acid);
    padding: 0 20px;
    flex-shrink: 0;
}

.feature-banner-sep {
    color: color-mix(in srgb, var(--acid) 35%, transparent);
    font-size: 7px;
    flex-shrink: 0;
}

@keyframes banner-scroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

/* -- M6: Tier-gate show/hide -- */

/* Hidden until body[data-tier] is set; free-only elements hidden for paid */
.tier-free-only { display: none; }
body[data-tier="anonymous"] .tier-free-only,
body[data-tier="unpaid"]   .tier-free-only { display: flex; }
body[data-tier="paid"]     .upsell-card,
body[data-tier="paid"]     .workspace-reset-banner { display: none !important; }

/* -- M6: Upsell card (Advanced Code Quality) -- */

.upsell-card {
    flex-direction: column;
    gap: 12px;
    padding: 14px 16px;
    margin-top: 10px;
    border: 1px solid color-mix(in srgb, var(--warning) 35%, var(--border));
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--warning) 6%, var(--bg-deep));
}

.upsell-card-content {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.upsell-card-icon {
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

.upsell-card-title {
    margin: 0 0 4px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
}

.upsell-card-body {
    margin: 0;
    font-size: 12px;
    color: var(--muted);
    line-height: 1.5;
}

.upsell-card-btn {
    align-self: flex-start;
    padding: 7px 14px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid var(--warning);
    background: color-mix(in srgb, var(--warning) 15%, var(--surface));
    color: var(--warning);
    cursor: pointer;
    transition: background var(--t), color var(--t);
}

.upsell-card-btn:hover {
    background: var(--warning);
    color: var(--on-accent);
}

/* -- M6: Workspace reset notice (Load tab) -- */

.workspace-reset-banner {
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    margin-bottom: 8px;
    border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--warning) 10%, var(--bg-deep));
    border: 1px solid color-mix(in srgb, var(--warning) 25%, var(--border));
    font-size: 12px;
    color: var(--muted);
    flex-wrap: wrap;
}

.workspace-reset-btn {
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid var(--warning);
    background: transparent;
    color: var(--warning);
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--t), color var(--t);
}

.workspace-reset-btn:hover {
    background: var(--warning);
    color: var(--on-accent);
}

.load-dialog-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
}

.load-btn-cancel {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--muted);
    padding: 9px 18px;
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.load-btn-cancel:hover {
    border-color: var(--text);
    color: var(--text);
}

.load-btn-submit {
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: #0b1220;
    padding: 9px 22px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s;
}

.load-btn-submit:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.load-btn-submit:not(:disabled):hover {
    opacity: 0.88;
}

/* hidden file input trick */
.load-btn-submit--warning {
    background: var(--warning);
    color: #1a0a00;
}

#load-file-picker {
    display: none;
}

/* -- LOAD RESULT FEEDBACK -- */

.load-result {
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    border: 1px solid var(--border);
    font-size: 13px;
    display: none;
}

.load-result.visible,
.load-result--ok,
.load-result--error {
    display: block;
}

/* Success: readable --text body, only border coloured */
.load-result--ok {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.08);
    color: var(--text);
}

.load-result--ok .result-title {
    color: var(--success);
    font-weight: 600;
}

/* Error */
.load-result--error {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.08);
    color: var(--text);
}

.load-result--error .result-title {
    color: var(--danger);
    font-weight: 600;
}

/* ── Load panel tab bar (PATCHSET / DIFF ANALYSIS) ─────────────────────── */
.load-panel-tabs {
    display: flex;
    gap: 2px;
    border-bottom: 1px solid var(--border);
    margin: 0 0 12px 0;
}

.load-panel-tab {
    padding: 6px 16px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 140ms, border-color 140ms;
}

.load-panel-tab:hover {
    color: var(--text);
}

.load-panel-tab--active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.load-panel-pane {
    display: none;
}

.load-panel-pane--active {
    display: block;
}

/* ── Diff Analysis pane ─────────────────────────────────────────────────── */
.diff-editors-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.diff-editor-col {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.diff-textarea {
    min-height: 200px;
    resize: vertical;
}

.diff-preview-container {
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-bottom: 12px;
    overflow: hidden;
}

.diff-preview-container.diff-preview--hidden {
    display: none;
}

.diff-preview-header {
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.diff-preview {
    margin: 0;
    padding: 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.55;
    color: var(--text);
    background: var(--bg);
    white-space: pre;
    overflow-x: auto;
    max-height: 260px;
}

.diff-line--del {
    color: #f28b82;
    background: rgba(242, 139, 130, 0.08);
    display: block;
}

.diff-line--add {
    color: #81c995;
    background: rgba(129, 201, 149, 0.08);
    display: block;
}

/* -- RIGHT RAIL — summary sections -- */

.right-rail {
    display: flex;
    flex-direction: column; 
    gap: 12px;
    overflow-y: auto;
    min-width: 0;
    min-height: 0;
    height: 100%;
    max-height: 100%;
    align-self: stretch;
}

.accordion-item {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: 0;
}

.accordion-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.accordion-body {
    font-size: 12px;
    color: var(--muted);
    line-height: 1.5;
}

/* -- LOAD SUMMARY PANE (#tab-load content) -- */


.load-summary-pane {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 16px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.load-summary-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 48px 20px;
    text-align: center;
    color: var(--muted);
}

.load-summary-empty-icon {
    font-size: 36px;
    color: var(--border);
}

.load-summary-empty-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
}

.load-summary-empty-hint {
    font-size: 12px;
    color: var(--muted);
    opacity: 0.75;
    max-width: 44ch;
}

.load-summary-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding: 12px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.load-summary-header-status {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.load-summary-header-status--ok {
    color: var(--success);
}

.load-summary-header-status--error {
    color: var(--danger);
}

.load-summary-header-revision {
    font-size: 12px;
    color: var(--muted);
    font-family: var(--font-mono);
}

.load-summary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.load-summary-stat {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.load-summary-stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--muted);
    font-weight: 600;
}

.load-summary-stat-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.1;
    word-break: break-word;
}

.load-summary-paths {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.load-summary-paths-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--muted);
    font-weight: 600;
}

.load-summary-path-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.load-summary-path-row-key {
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.load-summary-path-row-value {
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text);
    word-break: break-all;
    white-space: pre-wrap;
}

.load-summary-files {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.load-summary-files-header {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--muted);
    font-weight: 600;
}

.load-summary-files-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.load-summary-file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    transition: border-color var(--t);
}

.load-summary-file-item:hover {
    border-color: var(--accent);
}

.load-summary-file-item-path {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text);
    word-break: break-all;
    flex: 1;
    min-width: 0;
}

.load-summary-file-item-ops {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 2px 8px;
    white-space: nowrap;
    flex-shrink: 0;
}

.load-summary-error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid var(--danger);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    color: var(--text);
    font-size: 13px;
    white-space: pre-wrap;
}

/* ------------------------------------------------------------------ */
/* LOAD FORM CHECKBOXES (shared by Summary and any future opt rows)   */
/* ------------------------------------------------------------------ */

.load-checkboxes {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.load-checkbox-label {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: var(--text);
    cursor: pointer;
    user-select: none;
}

.load-checkbox-label input[type="checkbox"] {
    accent-color: var(--accent);
    width: 14px;
    height: 14px;
    cursor: pointer;
    flex-shrink: 0;
}

.load-checkbox-label--muted {
    color: var(--muted);
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    transition: opacity 0.15s, color 0.15s;
}

.load-checkbox-label--muted input[type="checkbox"] {
    cursor: not-allowed;
}

/* -- DIFF ANALYSIS form (in Load dialog #diff-source-row) -- */


.diff-analysis-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.diff-analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.diff-analysis-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.diff-analysis-area {
    min-height: 140px;
    resize: vertical;
}

.diff-analysis-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-bottom: 6px;
}

.diff-result {
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-size: 12px;
    color: var(--muted);
    border: 1px solid transparent;
    min-height: 1.5em;
}

.diff-result.status-ok {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.08);
    color: var(--text);
}

.diff-result.status-error {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.08);
    color: var(--text);
}

.workflow-stage-pane {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.workflow-stage-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.workflow-stage-header h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text);
}

.workflow-stage-subtitle {
    font-size: 12px;
    line-height: 1.6;
    color: var(--muted);
    max-width: 72ch;
}

.workflow-stage-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.workflow-stage-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.workflow-card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.workflow-card--summary,
.workflow-card--wide {
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.06), rgba(56, 189, 248, 0.02));
}

.workflow-card--wide {
    margin-top: 2px;
}

.workflow-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.workflow-card-head h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
}

.workflow-card-body {
    font-size: 12px;
    line-height: 1.6;
    color: var(--muted);
}

.workflow-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 24px;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-deep);
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
    white-space: nowrap;
}

.workflow-pill--info {
    border-color: var(--accent);
    color: var(--accent-hover);
}

.workflow-pill--warn {
    border-color: var(--warning);
    color: var(--warning);
}

.workflow-pill--ok {
    border-color: var(--success);
    color: var(--success);
}

.workflow-pill--danger {
    border-color: var(--danger);
    color: var(--danger);
}

.workflow-pill--neutral {
    border-color: var(--border);
    color: var(--muted);
}

.workflow-bullet-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-left: 18px;
    color: var(--muted);
    font-size: 12px;
}

.workflow-action-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.workflow-check {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text);
}

.workflow-check input {
    accent-color: var(--accent);
}

.workflow-tag-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.workflow-tag {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-deep);
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}

.workflow-inline-actions,
.issue-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.issue-card-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.issue-card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.issue-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.issue-card-head h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}

.issue-card-meta,
.issue-card-body {
    font-size: 12px;
    line-height: 1.6;
    color: var(--muted);
}

/* === CONFORM / VALIDATE ADDITIONS (Sprint 3-4) ============================== */

.stage-button.stage-complete {
    border-color: var(--success);
}

.stage-button.stage-complete:not(:disabled):hover {
    background: var(--surface-2);
    border-color: var(--success);
}

/* ------------------------------------------------------------------ */
/* APPLY RESULT FEEDBACK                                               */
/* ------------------------------------------------------------------ */

.apply-result {
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    white-space: pre-wrap;
    border: 1px solid var(--border);
    color: var(--text);
    background: var(--bg-deep);
    display: none;
}

.apply-result--ok,
.apply-result--error {
    display: block;
}

.apply-result--ok {
    border-color: var(--success);
}

.apply-result--error {
    border-color: var(--danger);
    color: var(--danger);
}

.summary-output-box {
    margin-top: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text);
    min-height: 60px;
}

.summary-output-box a {
    color: var(--primary);
    text-decoration: underline;
}

.apply-result-msgs {
    list-style: none;
    padding: 4px 0 0 8px;
    font-size: 12px;
    color: var(--danger);
}

.apply-auto-notice {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--success);
    background: var(--bg-deep);
    font-size: 13px;
    color: var(--text);
}

.apply-auto-notice[hidden] {
    display: none;
}

.apply-auto-notice-icon {
    color: var(--success);
    font-weight: 700;
    flex-shrink: 0;
}

.apply-auto-notice-message {
    flex: 1;
}

.apply-auto-notice-back {
    flex-shrink: 0;
}

.next-step-prompt {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-deep);
    font-size: 13px;
    color: var(--muted);
}

.next-step-prompt--ok {
    border-color: var(--success);
}

.next-step-prompt--error {
    border-color: var(--danger);
}

.next-step-prompt-message {
    flex: 1;
}

.next-step-prompt-btn {
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: var(--on-accent);
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity 0.15s;
    flex-shrink: 0;
}

.next-step-prompt-btn:hover {
    opacity: 0.88;
}

.next-step-prompt-btn--ghost {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

.next-step-prompt-btn--ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    opacity: 1;
}

.conform-result,
.validate-result {
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    white-space: pre-wrap;
    border: 1px solid var(--border);
    color: var(--text);
    background: var(--bg-deep);
}

.conform-result--hidden,
.validate-result--hidden {
    display: none;
}

.conform-result--ok,
.validate-result--ok {
    border-color: var(--success);
}

.conform-result--error,
.validate-result--error {
    border-color: var(--danger);
    color: var(--danger);
}

.issue-card--blocking,
.issue-card--error {
    border-left: 3px solid var(--danger);
}

.issue-card--warning {
    border-left: 3px solid var(--warning);
}

.issue-card--resolved {
    opacity: 0.5;
}

.conform-fix-list {
    margin-top: 12px;
}

.conform-fix-item {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    flex-wrap: wrap;
}

.conform-fix-item:last-child {
    border-bottom: none;
}

.conform-fix-item-kind,
.conform-fix-item-path {
    font-family: monospace;
    font-size: 12px;
    white-space: nowrap;
}

.conform-fix-item-kind {
    color: var(--muted);
}

.conform-fix-item-path {
    color: var(--accent);
}

.conform-fix-item-desc {
    flex: 1;
    color: var(--text);
}

@media (max-width: 1100px) {
    .workflow-stage-grid {
        grid-template-columns: 1fr;
    }
}

/* Conform / Diagnostics — No Issues CTA */
.conform-no-issues-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px 16px 16px;
    gap: 12px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
}

.conform-no-issues-icon {
    font-size: 2rem;
    color: #68d391;
}

.conform-no-issues-cta p {
    color: var(--muted);
    font-size: 13px;
    max-width: 36ch;
}

/* Stage pills */
.workflow-pill--preflight {
    background: color-mix(in srgb, #f6ad55 18%, transparent);
    color: #f6ad55;
}

.workflow-pill--conform {
    background: color-mix(in srgb, #63b3ed 18%, transparent);
    color: #63b3ed;
}

.workflow-pill--validate {
    background: color-mix(in srgb, #68d391 18%, transparent);
    color: #68d391;
}

/* -- PREVIEW OPERATIONS TABLE -- */


.preview-ops-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    font-family: var(--font-mono);
}

.preview-ops-table thead {
    position: sticky;
    top: 0;
    background: var(--surface-2);
    z-index: 1;
}

.preview-ops-table th,
.preview-ops-table td {
    padding: 5px 10px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.preview-ops-table th {
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
}

.preview-ops-table tr[data-op-index] {
    cursor: pointer;
    transition: background var(--t);
}

.preview-ops-table tr[data-op-index]:hover {
    background: var(--bg-deep);
}

.preview-op-row--active {
    background: color-mix(in srgb, var(--accent) 8%, transparent) !important;
    outline: 1px solid var(--accent);
    outline-offset: -1px;
}

.preview-op-col--index {
    width: 36px;
    color: var(--muted);
}

.preview-op-col--kind {
    width: 120px;
    color: var(--accent);
    text-transform: capitalize;
}

.preview-op-col--line {
    width: 64px;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

.preview-op-col--counts {
    width: 80px;
    color: var(--muted);
}

.preview-op-col--anchor {
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text);
}

/* Ops table wrapper — flush layout, horizontal scroll for wide anchor text */
.ops-table-wrap {
    overflow-x: auto;
    width: 100%;
}

/* Anchor column: takes remaining space, truncates long lines */
.preview-ops-table .preview-op-col--anchor {
    max-width: 0;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Remove padding from ops content area so table sits flush */
#preview-operations-content {
    padding: 0;
}

.stub-notice--error p {
    color: var(--danger, #fc8181);
}

/* -- DIAGNOSTICS TABLE -- */


.diag-file-block {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
}

.diag-file-block--problem {
    border-color: var(--warning);
}

.diag-file-block--blocked {
    border-color: var(--danger);
}

.diag-file-block--error {
    border-color: var(--danger);
}

.diag-file-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 12px;
    background: var(--surface-1);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
}

.diag-file-header--problem {
    background: color-mix(in srgb, var(--warning) 10%, var(--surface-1));
    border-bottom-color: var(--warning);
}

.diag-file-header--blocked {
    background: color-mix(in srgb, var(--danger) 14%, var(--surface-1));
    border-bottom-color: var(--danger);
}

.diag-file-name {
    font-weight: 600;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 11px;
}

.diag-file-summary {
    font-size: 11px;
    color: var(--muted);
}

.diag-file-header--problem .diag-file-summary {
    color: var(--warning);
}

.diag-file-header--blocked .diag-file-summary {
    color: var(--danger);
}

.diag-file-header--blocked .diag-file-name {
    color: var(--danger);
}

.diag-row--problem {
    background: color-mix(in srgb, var(--danger) 6%, transparent);
}

.diag-file-caption {
    display: none;
}

.diag-col--conform {
    width: 90px;
}

.diag-col--validate {
    width: 80px;
    text-align: center;
}

.diag-col--apply {
    width: 100px;
    text-align: right;
}

.diag-apply-btn {
    background: var(--accent);
    border: none;
    border-radius: 6px;
    color: var(--on-accent);
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity 0.15s;
}

.diag-apply-btn:hover {
    opacity: 0.85;
}

.diag-apply-btn:disabled,
.diag-apply-btn[disabled] {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

.diag-apply-btn--warn {
    background: transparent;
    border: 1px solid #f6ad55;
    color: #f6ad55;
}

.diag-apply-btn--warn:hover {
    background: color-mix(in srgb, #f6ad55 15%, transparent);
    opacity: 1;
}

span.diag-apply-btn--blocked {
    display: inline-block;
    padding: 3px 10px;
    background: transparent;
    border: none;
    color: var(--color-text-faint, var(--muted));
    font-size: 11px;
    font-style: italic;
    cursor: default;
    white-space: nowrap;
}

.diag-summary-table {
    margin-bottom: 16px;
}

.diag-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    font-family: var(--font-mono);
}

.diag-table thead {
    position: sticky;
    top: 0;
    background: var(--surface-2);
    z-index: 1;
}

.diag-table th,
.diag-table td {
    padding: 5px 10px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.diag-table th {
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
}

.diag-col--idx {
    width: 36px;
    color: var(--muted);
}

.diag-col--kind {
    width: 110px;
    text-transform: capitalize;
}

.diag-col--match {
    width: 130px;
}

.diag-col--dl {
    width: 48px;
    text-align: center;
}

.apply-dl-btn {
    display: inline-block;
    padding: 2px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface-2);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    line-height: 1.6;
    transition: background 0.15s, color 0.15s;
}

.apply-dl-btn:hover {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

.diag-col--drift {
    width: 60px;
    text-align: center;
    color: var(--muted);
}

.diag-col--issues {
    width: 60px;
    text-align: center;
}

.diag-match {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 3px;
    white-space: nowrap;
}

.diag-match--ok {
    background: color-mix(in srgb, #68d391 15%, transparent);
    color: #68d391;
}

.diag-match--fail {
    background: color-mix(in srgb, #fc8181 15%, transparent);
    color: #fc8181;
}

.diag-match--warn {
    background: color-mix(in srgb, #f6ad55 15%, transparent);
    color: #f6ad55;
}

.diag-match--na {
    color: var(--muted);
    font-size: 11px;
}

.diag-issue-count {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 3px;
}

.diag-issue-count--ok {
    color: var(--muted);
}

.diag-issue-count--warn {
    background: color-mix(in srgb, #f6ad55 15%, transparent);
    color: #f6ad55;
}

.diag-issue-row td {
    background: var(--bg-deep);
    padding-top: 3px;
    padding-bottom: 3px;
}

.diag-issue {
    display: inline-flex;
    gap: 8px;
    font-size: 11px;
}

.diag-issue--info {
    color: var(--muted);
}

.diag-issue--warning {
    color: #f6ad55;
}

.diag-issue--error,
.diag-issue--blocking {
    color: #fc8181;
}

.diag-issue-code {
    font-weight: 600;
}

.anchor-comparison-detail {
    font-family: var(--font-mono);
    font-size: 0.82em;
    line-height: 1.5;
    padding: 8px 12px;
    margin: 4px 0 8px 0;
    background: var(--bg-deep);
    border-radius: 4px;
    border: 1px solid var(--border);
    white-space: pre-wrap;
    overflow-x: auto;
    color: var(--fg);
}

.diag-section {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.diag-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
    margin-bottom: 6px;
}

/* ── Diagnostic op drawers ────────────────────────────────────────────── */

.diag-op-drawer {
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-bottom: 6px;
    background: var(--surface-2);
    overflow: hidden;
}

.diag-op-drawer--problem {
    border-color: color-mix(in srgb, #fc8181 35%, var(--border));
}

.diag-op-drawer-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    cursor: pointer;
    user-select: none;
    min-height: 36px;
    transition: background 0.1s;
}

.diag-op-drawer-header:hover {
    background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.diag-op-drawer-header:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.diag-op-drawer--problem .diag-op-drawer-header {
    background: color-mix(in srgb, #fc8181 6%, var(--surface-2));
}

.diag-op-drawer-chevron {
    font-size: 9px;
    color: var(--muted);
    flex-shrink: 0;
    width: 12px;
    transition: transform 0.15s;
}

.diag-op-drawer-idx {
    font-size: 11px;
    color: var(--muted);
    min-width: 18px;
    flex-shrink: 0;
}

.diag-op-drawer-kind {
    font-size: 12px;
    font-weight: 600;
    text-transform: capitalize;
    min-width: 90px;
    flex-shrink: 0;
}

.diag-op-drawer-pills {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    flex-wrap: wrap;
}

.diag-op-drawer-actions {
    flex-shrink: 0;
    margin-left: auto;
}

.diag-op-drift {
    font-size: 11px;
    color: var(--muted);
    background: color-mix(in srgb, var(--muted) 12%, transparent);
    padding: 1px 5px;
    border-radius: 3px;
}

.diag-op-issue-badge {
    font-size: 11px;
    padding: 1px 6px;
    border-radius: 3px;
}

.diag-op-issue-badge--warn {
    background: color-mix(in srgb, #f6ad55 15%, transparent);
    color: #f6ad55;
}

/* Body: hidden by default (JS toggles display) */
.diag-op-drawer-body {
    display: none;
    border-top: 1px solid var(--border);
    background: var(--bg-deep);
}

/* Sub-drawer tab strip */
.diag-subdrawer {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}

.diag-subdrawer-tab {
    padding: 5px 14px;
    font-size: 11px;
    font-weight: 500;
    color: var(--muted);
    cursor: pointer;
    border-right: 1px solid var(--border);
    user-select: none;
    transition: background 0.1s, color 0.1s;
}

.diag-subdrawer-tab:hover {
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    color: var(--text);
}

.diag-subdrawer-tab--active {
    color: var(--accent);
    background: var(--bg-deep);
    border-bottom: 2px solid var(--accent);
    margin-bottom: -1px;
}

/* Sub-drawer panes */
.diag-subdrawer-pane {
    display: none;
    padding: 10px 12px;
    max-height: 320px;
    overflow-y: auto;
}

.diag-subdrawer-pane--active {
    display: block;
}

.diag-subdrawer-empty {
    color: var(--muted);
    font-size: 12px;
    padding: 6px 0;
}

.diag-subdrawer-lazy {
    color: var(--muted);
    font-size: 12px;
}

.diag-subdrawer-lazy--error {
    color: #fc8181;
}

/* Conformance detail table */
.diag-detail-table {
    font-size: 12px;
    border-collapse: collapse;
    width: 100%;
}

.diag-detail-table th {
    text-align: left;
    font-weight: 500;
    color: var(--muted);
    padding: 3px 12px 3px 0;
    white-space: nowrap;
    width: 110px;
}

.diag-detail-table td {
    padding: 3px 0;
    word-break: break-all;
}

.diag-op-id {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
}

/* Issue list in validation pane */
.diag-issue-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.diag-issue-list .diag-issue {
    display: flex;
    gap: 8px;
    align-items: baseline;
    flex-wrap: wrap;
}

.diag-issue-loc {
    font-size: 10px;
    color: var(--muted);
    margin-left: auto;
}

/* Patchset view */
.diag-patchset-view {
    font-size: 12px;
}

.diag-patchset-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.diag-patchset-kind {
    font-weight: 600;
    text-transform: capitalize;
}

.diag-patchset-counts {
    font-size: 11px;
    color: var(--muted);
}

.diag-patchset-section {
    margin-bottom: 8px;
}

.diag-patchset-section-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
    margin-bottom: 3px;
}

/* Diff view inside drawers — reuses existing .diff-line classes */
.diag-diff-view {
    font-size: 12px;
}

.diff-line--ellipsis {
    padding: 2px 8px;
    color: var(--muted);
    font-size: 11px;
    font-style: italic;
    background: color-mix(in srgb, var(--muted) 8%, transparent);
    text-align: center;
}

.stage-issues-pane {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 16px;
}

/* -- FILE VIEW (Before / After panes) -- */

.after-view-toolbar {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 7px 14px;
    border-bottom: 1px solid var(--border);
    background: var(--surface-1);
    font-size: 12px;
    color: var(--muted);
    flex-shrink: 0;
}

.after-view-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
}

.after-view-toggle input[type="checkbox"] {
    accent-color: var(--accent);
    cursor: pointer;
}

.file-line--context {
    opacity: 0.45;
}

.file-line--ellipsis {
    display: flex;
    align-items: center;
    padding: 2px 12px 2px 56px;
    color: var(--muted);
    font-size: 11px;
    font-style: italic;
    user-select: none;
    border-top: 1px dashed var(--border);
    border-bottom: 1px dashed var(--border);
    margin: 2px 0;
}

.file-view {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    padding: 12px 0;
}

.file-line {
    display: flex;
    align-items: baseline;
    padding: 0 12px;
    min-height: 20px;
}

.file-line-ln {
    width: 40px;
    flex-shrink: 0;
    text-align: right;
    padding-right: 16px;
    color: var(--muted);
    user-select: none;
    font-variant-numeric: tabular-nums;
}

.file-line-text {
    flex: 1;
    white-space: pre;
    color: var(--text);
}

.file-line--added {
    background: color-mix(in srgb, #68d391 8%, transparent);
}

.file-line--added .file-line-text {
    color: #68d391;
}

.file-line--deleted {
    background: color-mix(in srgb, #fc8181 8%, transparent);
}

.file-line--deleted .file-line-text {
    color: #fc8181;
    text-decoration: line-through;
    text-decoration-color: color-mix(in srgb, #fc8181 50%, transparent);
}

/* -- FILE VIEWER — selection & tree item states -- */


/* Selection bar at bottom of tree panel */
.file-viewer-selection-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--muted);
    background: var(--surface);
    flex-shrink: 0;
}

.file-viewer-selection-bar span {
    flex: 1;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Selected-for-summary: full content included */
.stub-tree-item--selected {
    background: color-mix(in oklab, var(--accent) 10%, var(--surface));
}

.stub-tree-item--selected::before {
    content: '✓';
    font-size: 10px;
    color: var(--accent);
    margin-right: 4px;
    flex-shrink: 0;
}

.stub-tree-item--selected.stub-tree-item--active {
    background: color-mix(in oklab, var(--accent) 18%, var(--surface));
}

/* Skeleton (deselected): file becomes skeleton context only */
.stub-tree-item--skeleton {
    opacity: 0.55;
}

.stub-tree-item--skeleton::before {
    content: '○';
    font-size: 10px;
    color: var(--muted);
    margin-right: 4px;
    flex-shrink: 0;
}

/* Pointer + hover for all live tree items */
.stub-tree-item[data-path] {
    cursor: pointer;
}

.stub-tree-item[data-path]:hover {
    background: var(--surface-2);
    border-radius: var(--radius-sm);
}

/* Sub-text in notice banner */
.stub-notice-sub {
    color: var(--muted);
    margin-top: 4px;
    font-size: 11px;
}

/* -- FILE TREE — hierarchical tree view -- */


.file-tree-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    flex-shrink: 0;
}

.file-tree-btn {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--muted);
    cursor: pointer;
    transition: color var(--t), border-color var(--t), background var(--t);
    white-space: nowrap;
}

.file-tree-btn:hover {
    color: var(--text);
    border-color: var(--accent);
}

.file-tree-root {
    list-style: none;
    margin: 0;
    padding: 4px 0;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

/* ── Directory ── */
.ftree-dir {
    list-style: none;
}

.ftree-dir-row {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    cursor: pointer;
    user-select: none;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    transition: background var(--t), color var(--t);
}

.ftree-dir-checkbox {
    /* Prevent the checkbox from participating in the row's expand/collapse click */
    pointer-events: auto;
    flex-shrink: 0;
}

.ftree-dir-row:hover {
    background: var(--surface-2);
    color: var(--text);
}

.ftree-dir-chevron {
    font-size: 10px;
    width: 12px;
    flex-shrink: 0;
    color: var(--faint);
}

.ftree-children {
    list-style: none;
    margin: 0;
    padding: 0 0 0 16px;
    border-left: 1px solid var(--divider);
    margin-left: 13px;
}

/* ── File row ── */
.ftree-file {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 3px 8px 3px 4px;
    border-radius: var(--radius-sm);
    list-style: none;
    font-size: 12px;
    color: var(--muted);
    transition: background var(--t), color var(--t), opacity var(--t);
    min-width: 0;
}

.ftree-file:hover { background: var(--surface-2); color: var(--text); }

.ftree-file--active {
    background: color-mix(in oklab, var(--accent) 10%, var(--surface));
    color: var(--text);
}

.ftree-file:not(.ftree-file--selected) { opacity: 0.45; }

.ftree-checkbox {
    flex-shrink: 0;
    width: 13px;
    height: 13px;
    cursor: pointer;
    accent-color: var(--accent);
    margin: 0;
}

.ftree-file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
    min-width: 0;
}

.ftree-file-name:hover {
    text-decoration: underline;
    color: var(--accent);
}

/* Export type pill */
.ftree-export-toggle {
    flex-shrink: 0;
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 600;
    letter-spacing: 0.03em;
    transition: background var(--t), color var(--t), border-color var(--t);
}

.ftree-export-toggle--full {
    background: color-mix(in oklab, var(--success) 15%, var(--surface));
    color: var(--success);
    border-color: color-mix(in oklab, var(--success) 30%, transparent);
}

.ftree-export-toggle--skeleton {
    background: color-mix(in oklab, var(--warning) 15%, var(--surface));
    color: var(--warning);
    border-color: color-mix(in oklab, var(--warning) 30%, transparent);
}

.file-tree-empty {
    padding: 16px;
    color: var(--faint);
    font-size: 12px;
    text-align: center;
}

/* ================================================================
   PANELS.CSS — RESPONSIVE ADDITIONS
   (appended to existing panels.css content)
   Tablet ≤ 900px  |  Phone ≤ 600px
================================================================ */

/* ── Tablet (≤ 900px) ─────────────────────────────────────────── */

@media (max-width: 900px) {

  /* Load dialog: full-viewport on tablet */
  .load-dialog {
    width: calc(100vw - 24px);
    min-height: 70vh;
    max-height: 92vh;
    border-radius: var(--radius-md);
  }

  /* Load source tabs: stack if needed */
  .load-source-tabs {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  /* Diff editors: single column */
  .diff-editors-grid,
  .diff-analysis-grid {
    grid-template-columns: 1fr;
  }

  /* Load summary grid: 2 cols already fits; keep */

  /* Workflow stage grid: 2 cols */
  .workflow-stage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* Right-rail stacked sections: let them breathe */
  .right-rail > .panel {
    max-height: none;
  }

  /* Terminal panel: shorter on tablet */
  .terminal-panel .terminal-log {
    max-height: 200px;
  }
}

/* ── Phone (≤ 600px) ─────────────────────────────────────────── */

@media (max-width: 600px) {

  /* Load dialog: full screen */
  .load-dialog {
    width: 100vw;
    min-height: 100dvh;
    max-height: 100dvh;
    border-radius: 0;
  }
  .load-dialog-header { padding: 14px 14px 10px; }
  .load-dialog-body   { padding: 14px; gap: 12px; }
  .load-dialog-footer { padding: 12px 14px; }

  /* Load source tabs: single col */
  .load-source-tabs { grid-template-columns: 1fr; }

  /* Diff editors: single col, shorter */
  .diff-editors-grid,
  .diff-analysis-grid { grid-template-columns: 1fr; }
  .diff-textarea       { min-height: 140px; }

  /* Load summary grid: single col */
  .load-summary-grid { grid-template-columns: 1fr; }

  /* Workflow stage grid: single col */
  .workflow-stage-grid { grid-template-columns: 1fr; }

  /* Workflow card: tighten padding */
  .workflow-card          { padding: 12px; }
  .workflow-stage-header  { padding: 12px; }

  /* Load summary stats: smaller numbers */
  .load-summary-stat-value { font-size: 18px; }

  /* Terminal: short box */
  .terminal-panel .terminal-log {
    max-height: 160px;
    font-size: 11px;
  }

  /* Code block: horizontal scroll intact, tighten padding */
  .code-block { padding: 8px 10px; font-size: 11px; }

  /* Load result feedback */
  .load-result { font-size: 12px; padding: 8px 10px; }

  /* Import drop zone: tighten */
  .import-drop-zone { padding: 20px 14px; }
  .import-drop-zone-icon { font-size: 22px; }
  .import-drop-zone-label { font-size: 12px; }

  /* Right-rail accordion panels: remove bottom margin stacking */
  .right-rail > .panel + .panel { margin-top: 0; }

  /* Load file row for browse buttons on phone (already handled in
     components.css but ensure panels.css load-browse-btn aligns) */
  .load-browse-btn {
    padding: 8px 10px;
    font-size: 12px;
    white-space: normal;
    line-height: 1.3;
  }

  /* Load btn submit: full width in footer */
  .load-btn-submit,
  .load-btn-cancel {
    flex: 1;
    text-align: center;
  }
  .load-dialog-footer { gap: 8px; }
}