/* Captain Claw — Instructions Viewer/Editor */

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-hover: #30363d;
    --border: #30363d;
    --border-light: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --accent-subtle: #388bfd26;
    --green: #3fb950;
    --red: #f85149;
    --yellow: #d29922;
    --orange: #f78166;
    --purple: #bc8cff;
    --gold: #f0c040;
    --radius: 8px;
    --radius-sm: 4px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, Consolas, monospace;
    --header-height: 48px;
    --sidebar-width: 340px;
    --warning-height: 44px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.5;
}

/* ─── Header ─────────────────────────────────────────── */

.instr-header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    flex-shrink: 0;
}

.instr-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.instr-header-left .logo {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.3px;
    color: var(--text-primary);
    white-space: nowrap;
    text-decoration: none;
}
.instr-header-left .logo:hover { color: var(--accent); }

.instr-header-left .divider {
    width: 1px;
    height: 20px;
    background: var(--border);
}

.instr-page-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--accent);
}

.instr-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.2s, color 0.2s;
}
.header-link:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

/* ─── Warning Banner ─────────────────────────────────── */

.instr-warning-banner {
    min-height: var(--warning-height);
    background: rgba(210, 153, 34, 0.06);
    border-bottom: 1px solid rgba(210, 153, 34, 0.2);
    display: flex;
    align-items: center;
    padding: 8px 16px;
    gap: 10px;
    flex-shrink: 0;
}

.instr-warning-icon {
    font-size: 16px;
    color: var(--yellow);
    flex-shrink: 0;
}

.instr-warning-text {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.instr-warning-text strong {
    color: var(--yellow);
}

/* ─── Split Layout ───────────────────────────────────── */

.instr-layout {
    display: flex;
    height: calc(100vh - var(--header-height) - var(--warning-height));
}

/* ─── Sidebar (File Browser) ─────────────────────────── */

.instr-sidebar {
    width: var(--sidebar-width);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    background: var(--bg-secondary);
}

.instr-sidebar-header {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.instr-search {
    width: 100%;
    padding: 7px 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 13px;
    outline: none;
    transition: border-color 0.15s;
}
.instr-search:focus {
    border-color: var(--accent);
}
.instr-search::placeholder {
    color: var(--text-muted);
}

.instr-groups {
    flex: 1;
    overflow-y: auto;
    padding: 6px 0;
}

.instr-loading {
    padding: 24px 16px;
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
}

/* ─── Groups ─────────────────────────────────────────── */

.instr-group {
    margin-bottom: 2px;
}

.instr-group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    cursor: pointer;
    user-select: none;
    transition: background 0.15s;
}
.instr-group-header:hover {
    background: var(--bg-hover);
}

.instr-group-chevron {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform 0.2s;
    flex-shrink: 0;
    width: 12px;
    text-align: center;
}
.instr-group.collapsed .instr-group-chevron {
    transform: rotate(-90deg);
}

.instr-group-name {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.instr-group-count {
    font-size: 10px;
    color: var(--text-muted);
    margin-left: auto;
}

.instr-group-files {
    padding: 0 8px;
}
.instr-group.collapsed .instr-group-files {
    display: none;
}

/* ─── File Cards ─────────────────────────────────────── */

.instr-file-card {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 7px 10px;
    margin: 1px 0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    border: 1px solid transparent;
}
.instr-file-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--border);
}
.instr-file-card.active {
    background: var(--accent-subtle);
    border-color: var(--accent);
}

.instr-file-card-badge {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 2px 5px;
    border-radius: 3px;
    flex-shrink: 0;
    margin-top: 2px;
}
.instr-file-card-badge.system {
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent);
}
.instr-file-card-badge.user {
    background: rgba(188, 140, 255, 0.15);
    color: var(--purple);
}
.instr-file-card-badge.template {
    background: rgba(63, 185, 80, 0.15);
    color: var(--green);
}
.instr-file-card-badge.docs {
    background: rgba(210, 153, 34, 0.15);
    color: var(--yellow);
}

.instr-file-card-info {
    flex: 1;
    min-width: 0;
}

.instr-file-card-name {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.instr-file-card-desc {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 1px;
}

.instr-file-card-size {
    font-size: 10px;
    color: var(--text-muted);
    flex-shrink: 0;
    margin-top: 3px;
}

/* Customized (overridden) indicator on file cards */
.instr-file-card.overridden {
    border-left: 2px solid var(--orange);
}

.instr-file-card-customized {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--orange);
    margin-left: 4px;
}

.instr-file-card-micro {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--green);
    margin-left: 4px;
}

/* ─── Editor Pane ────────────────────────────────────── */

.instr-editor-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Empty state */

.instr-editor-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-muted);
    padding: 40px;
}

.instr-editor-empty-icon {
    font-size: 48px;
    opacity: 0.3;
    margin-bottom: 8px;
}

.instr-editor-empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
}

.instr-editor-empty-text {
    font-size: 14px;
    color: var(--text-muted);
}

.instr-editor-empty-hint {
    margin-top: 16px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    text-align: center;
    max-width: 480px;
}

.instr-editor-empty-hint strong {
    color: var(--text-secondary);
}

.instr-editor-empty-hint code {
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--bg-tertiary);
    padding: 1px 4px;
    border-radius: 3px;
    color: var(--accent);
}

/* Active editor */

.instr-editor-active {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}
.instr-editor-active.hidden { display: none; }

.instr-editor-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    min-height: 42px;
}

.instr-editor-file-info {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.instr-editor-badge {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 2px 5px;
    border-radius: 3px;
}
/* Badge colors — reuse same classes as file cards */
.instr-editor-badge.system {
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent);
}
.instr-editor-badge.user {
    background: rgba(188, 140, 255, 0.15);
    color: var(--purple);
}
.instr-editor-badge.template {
    background: rgba(63, 185, 80, 0.15);
    color: var(--green);
}
.instr-editor-badge.docs {
    background: rgba(210, 153, 34, 0.15);
    color: var(--yellow);
}

.instr-editor-filename {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent);
    font-weight: 600;
}

.instr-editor-dirty {
    color: var(--orange);
    font-size: 18px;
    line-height: 1;
}
.instr-editor-dirty.hidden { display: none; }

.instr-editor-desc {
    flex: 1;
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.instr-editor-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.instr-editor-override {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(247, 129, 102, 0.15);
    color: var(--orange);
}
.instr-editor-override.hidden { display: none; }

.instr-editor-save-status {
    font-size: 11px;
    color: var(--green);
    white-space: nowrap;
}

/* Buttons */

.instr-btn {
    padding: 5px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font);
    border: none;
    transition: background 0.15s, opacity 0.15s;
}
.instr-btn:disabled {
    opacity: 0.5;
    cursor: default;
}
.instr-btn.primary {
    background: var(--accent);
    color: var(--bg-primary);
}
.instr-btn.primary:hover:not(:disabled) { background: var(--accent-hover); }
.instr-btn.revert {
    background: transparent;
    color: var(--orange);
    border: 1px solid rgba(247, 129, 102, 0.3);
}
.instr-btn.revert:hover:not(:disabled) {
    background: rgba(247, 129, 102, 0.1);
    border-color: var(--orange);
}
.instr-btn.revert.hidden { display: none; }
.instr-btn.secondary {
    background: var(--bg-hover);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.instr-btn.secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ─── Dual Editor (Standard + Micro) ────────────────── */

.instr-dual-wrap {
    flex: 1;
    display: flex;
    min-height: 0;
}

.instr-dual-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}
.instr-dual-col.hidden { display: none; }

/* When micro column is visible, add a divider between the two */
.instr-dual-col + .instr-dual-col:not(.hidden) {
    border-left: 1px solid var(--border);
}

.instr-dual-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 4px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}

.instr-dual-label-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px 4px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}

.instr-dual-label-bar .instr-dual-label {
    padding: 0;
    background: none;
    border-bottom: none;
}
.instr-dual-label.micro {
    color: var(--green);
}

.instr-micro-dirty {
    color: var(--orange);
    font-size: 14px;
    line-height: 1;
}
.instr-micro-dirty.hidden { display: none; }

.instr-micro-override {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 1px 5px;
    border-radius: 3px;
    background: rgba(247, 129, 102, 0.15);
    color: var(--orange);
    margin-left: auto;
}
.instr-micro-override.hidden { display: none; }

.instr-micro-save-status {
    font-size: 11px;
    color: var(--green);
    white-space: nowrap;
}

.instr-btn.micro-revert {
    font-size: 10px;
    padding: 2px 8px;
}
.instr-btn.micro-save {
    font-size: 10px;
    padding: 2px 8px;
}

/* Textarea */

.instr-textarea {
    flex: 1;
    width: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: none;
    padding: 16px 20px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
    resize: none;
    outline: none;
    tab-size: 4;
}
.instr-textarea:focus {
    box-shadow: inset 0 0 0 1px rgba(88, 166, 255, 0.3);
}
.instr-textarea.micro:focus {
    box-shadow: inset 0 0 0 1px rgba(63, 185, 80, 0.3);
}

/* ─── No Results ─────────────────────────────────────── */

.instr-no-results {
    padding: 24px 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

/* ─── Scrollbar ──────────────────────────────────────── */

.instr-groups::-webkit-scrollbar {
    width: 6px;
}
.instr-groups::-webkit-scrollbar-track {
    background: transparent;
}
.instr-groups::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}
.instr-groups::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.instr-textarea::-webkit-scrollbar {
    width: 8px;
}
.instr-textarea::-webkit-scrollbar-track {
    background: transparent;
}
.instr-textarea::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
.instr-textarea::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ─── Responsive ─────────────────────────────────────── */

@media (max-width: 768px) {
    .instr-layout {
        flex-direction: column;
    }
    .instr-sidebar {
        width: 100%;
        max-height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    .instr-editor-toolbar {
        flex-wrap: wrap;
        gap: 6px;
    }
    .instr-editor-desc {
        order: 1;
        flex-basis: 100%;
    }
    .instr-dual-wrap {
        flex-direction: column;
    }
    .instr-dual-col + .instr-dual-col:not(.hidden) {
        border-left: none;
        border-top: 1px solid var(--border);
    }
}