/* ================================================
   FILE EDITOR - MULTI-TAB POPUP AND PINNED MODES
   ================================================ */

/* Theme Variables - Dark Professional Theme (Default) */
.file-editor-overlay,
.file-editor-pinned {
    /* Dark Theme (Default - Professional Dark) */
    --editor-bg: #1e1e1e;              /* Darker main background */
    --editor-header-bg: #252526;       /* Dark header/footer */
    --editor-tab-bg: #2d2d2d;          /* Dark tab background */
    --editor-tab-hover-bg: #3e3e3e;    /* Tab hover state */
    --editor-tab-active-bg: #0e639c;   /* Active tab (darker blue) */
    --editor-border: #454545;          /* Subtle borders */
    --editor-text: #cccccc;            /* Light text */
    --editor-text-muted: #858585;      /* Muted text */
    --editor-accent: #0e639c;          /* Accent color */
    --editor-accent-hover: #1177bb;    /* Accent hover */
    --editor-modified: #e5c07b;        /* Modified indicator (gold) */
    --editor-success: #98c379;         /* Success/saved (green) */
}

/* Light Theme Option */
.file-editor-overlay.theme-light,
.file-editor-pinned.theme-light {
    --editor-bg: #ffffff;
    --editor-header-bg: #f3f3f3;
    --editor-tab-bg: #ececec;
    --editor-tab-hover-bg: #e0e0e0;
    --editor-tab-active-bg: #007acc;
    --editor-border: #cccccc;
    --editor-text: #333333;
    --editor-text-muted: #666666;
    --editor-accent: #007acc;
    --editor-accent-hover: #0098ff;
    --editor-modified: #ff9800;
    --editor-success: #4caf50;
}

/* Popup Overlay */
.file-editor-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    backdrop-filter: blur(4px);
}

.file-editor-overlay.visible {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Popup Modal */
.file-editor-modal {
    background: var(--editor-bg);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 1200px;
    height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 10001;
    color: var(--editor-text);
}

/* Pinned Side Panel */
.file-editor-pinned {
    display: none;
    position: fixed;
    top: 30px;
    right: 0;
    bottom: 30px;
    width: 600px;
    background: var(--editor-bg);
    border-left: 2px solid var(--editor-border);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
    z-index: 9000;
    flex-direction: column;
    color: var(--editor-text);
}

.file-editor-pinned.visible {
    display: flex;
}

/* Resizer for Pinned Mode */
.file-editor-resizer {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    cursor: ew-resize;
    background: transparent;
    transition: background 0.2s;
    z-index: 10;
}

.file-editor-resizer:hover {
    background: var(--editor-accent);
}

.file-editor-pinned-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    margin-left: 6px;  /* Space for resizer */
}

/* Header with Tab Bar and Actions */
.file-editor-header {
    display: flex;
    flex-direction: column;
    background: var(--editor-header-bg);
    border-bottom: 1px solid var(--editor-border);
}

.file-editor-actions {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    background: var(--editor-header-bg);
    border-bottom: 1px solid var(--editor-border);
}

.file-editor-tabs {
    display: flex;
    flex: 1;
    align-items: center;
    gap: 2px;
    padding: 2px 6px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    min-height: 28px;
    background: var(--editor-header-bg);
}

.file-editor-tabs::-webkit-scrollbar {
    height: 4px;
}

.file-editor-tabs::-webkit-scrollbar-thumb {
    background: var(--editor-border);
    border-radius: 2px;
}

/* Individual Tab — single line, compact */
.file-editor-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 2px 10px;
    background: var(--editor-tab-bg);
    border: 1px solid var(--editor-border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
    flex-shrink: 0;
    max-width: 180px;
    min-height: 24px;
    /* height: 24px; */
    color: var(--editor-text);
}

.file-editor-tab:hover {
    background: var(--editor-tab-hover-bg);
    border-color: var(--editor-accent);
}

.file-editor-tab.active {
    background: var(--editor-tab-active-bg);
    border-color: var(--editor-tab-active-bg);
    color: white;
}

/* Two-line tab content container — no longer used, tabs are single-line now */
.file-editor-tab-content {
    display: none;
}

/* Session name in tab — hidden, moved to footer */
.file-editor-tab-session {
    display: none;
}

/* File name — single line in tab */
.file-editor-tab-name {
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
    line-height: 1;
}

/* Close button */
.file-editor-tab-close {
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 12px;
    opacity: 0.5;
    transition: all 0.15s;
    flex-shrink: 0;
    line-height: 1;
}

/* Session name in footer */
.file-editor-session {
    font-size: 11px;
    color: var(--editor-accent);
    font-weight: 600;
    opacity: 0.85;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}
.file-editor-session:empty {
    display: none;
}

.file-editor-tab-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
}

.file-editor-tab.active .file-editor-tab-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Header Actions */
.file-editor-actions {
    display: flex;
    gap: 6px;
    padding: 6px 12px;
    border-left: 1px solid var(--border-color);
}

/* Body - CodeMirror Editor Area */
.file-editor-body {
    flex: 1;
    padding: 0;
    overflow: hidden;
    display: flex;
    position: relative;
}

/* Wrapper for CodeMirror - NO styling of CodeMirror internals */
.file-editor-codemirror {
    width: 100%;
    height: 100%;
}

/* Ensure CodeMirror fills container - ONLY size, no colors/margins */
.file-editor-codemirror .CodeMirror {
    height: 100%;
}

/* Footer - Status Bar */
.file-editor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--editor-header-bg);
    border-top: 1px solid var(--editor-border);
    font-size: 12px;
    color: var(--editor-text);
}

.file-editor-status-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-editor-status-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.file-editor-status {
    font-weight: 600;
    color: var(--editor-text-muted);
}

.file-editor-status.modified {
    color: var(--editor-modified);
}

.file-editor-status.saved {
    color: var(--editor-success);
}

.file-editor-path {
    color: var(--editor-text-muted);
    font-size: 11px;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#fileEditorCursor,
#fileEditorCursorPinned {
    color: var(--editor-text-muted);
}

#fileEditorEncoding,
#fileEditorEncodingPinned {
    color: var(--editor-text-muted);
    font-weight: 600;
}

/* Buttons */
.file-editor-btn {
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--editor-tab-bg);
    color: var(--editor-text);
    white-space: nowrap;
}

.file-editor-btn:hover {
    background: var(--editor-tab-hover-bg);
    transform: translateY(-1px);
}

.file-editor-btn:active {
    transform: translateY(0);
}

.file-editor-btn.primary {
    background: var(--editor-accent);
    color: white;
}

.file-editor-btn.primary:hover {
    background: var(--editor-accent-hover);
}

.file-editor-btn.secondary {
    background: var(--editor-tab-bg);
}

.file-editor-btn.small {
    padding: 5px 10px;
    font-size: 12px;
}

/* Responsive - Smaller screens */
@media (max-width: 768px) {
    .file-editor-modal {
        width: 95%;
        height: 90vh;
    }

    .file-editor-pinned {
        width: 100%;
        border-left: none;
    }

    .file-editor-resizer {
        display: none;
    }

    .file-editor-tab {
        max-width: 150px;
    }

    .file-editor-tab-session {
        display: none;  /* Hide session on mobile */
    }

    .file-editor-path {
        max-width: 150px;
    }
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
    .file-editor-overlay {
        background: rgba(0, 0, 0, 0.85);
    }
}

/* Scrollbar styling for tab bar */
.file-editor-tabs {
    scrollbar-color: var(--editor-border) transparent;
}

/* Modified indicator in tab name */
.file-editor-tab-name::after {
    content: '';
}

/* Add visual indicator for modified tabs */
.file-editor-tab[data-modified="true"] {
    border-left: 3px solid var(--editor-modified);
}

.file-editor-tab.active[data-modified="true"] {
    border-left: 3px solid rgba(255, 255, 255, 0.8);
}

/* Animation for tab open/close - only on creation, not on updates */
.file-editor-tab.new-tab {
    animation: tabSlideIn 0.2s ease;
}

@keyframes tabSlideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Performance optimization - prevent layout thrashing */
.file-editor-tab {
    will-change: auto;  /* Don't pre-optimize */
}

.file-editor-tab:hover {
    will-change: background, border-color;  /* Optimize on hover */
}

/* Empty state (no tabs) */
.file-editor-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--editor-text-muted);
    padding: 40px;
    text-align: center;
}

.file-editor-empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.file-editor-empty-text {
    font-size: 16px;
    margin-bottom: 8px;
}

.file-editor-empty-hint {
    font-size: 13px;
    opacity: 0.7;
}

/* ================================================
   RELOAD NOTIFICATION BAR
   ================================================ */

.file-editor-reload-bar {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
    color: #ffffff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.file-editor-reload-bar .reload-message {
    flex: 1;
    font-weight: 500;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.file-editor-reload-bar .file-editor-btn {
    font-size: 12px;
    padding: 6px 12px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    white-space: nowrap;
}

.file-editor-reload-bar .file-editor-btn.primary {
    background: #ffffff;
    color: #f57c00;
}

.file-editor-reload-bar .file-editor-btn.primary:hover {
    background: #f5f5f5;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.file-editor-reload-bar .file-editor-btn.secondary {
    background: rgba(0, 0, 0, 0.2);
    color: #ffffff;
}

.file-editor-reload-bar .file-editor-btn.secondary:hover {
    background: rgba(0, 0, 0, 0.3);
}