/**
 * File Editor Component Styles
 * Mobile-first responsive design for CodeMirror 6 editor
 */

/* === File Editor Container === */
.file-editor-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #0d1117;
    color: #c9d1d9;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    overflow: hidden;
}

/* === Editor Header (Tabs + Actions) === */
.editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #161b22;
    border-bottom: 1px solid #30363d;
    padding: 0;
    min-height: 40px;
}

.editor-tabs {
    display: flex;
    align-items: center;
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: #484f58 #161b22;
}

.editor-tabs::-webkit-scrollbar {
    height: 8px;
}

.editor-tabs::-webkit-scrollbar-track {
    background: #161b22;
}

.editor-tabs::-webkit-scrollbar-thumb {
    background: #484f58;
    border-radius: 4px;
}

.editor-tabs::-webkit-scrollbar-thumb:hover {
    background: #6e7681;
}

.editor-actions {
    display: flex;
    align-items: center;
    padding: 0 8px;
    gap: 4px;
    border-left: 1px solid #30363d;
}

/* === Editor Tabs === */
.editor-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: none;
    border-right: 1px solid #30363d;
    cursor: pointer;
    font-size: 13px;
    color: #8b949e;
    transition: background 0.15s ease, color 0.15s ease;
    white-space: nowrap;
    user-select: none;
    min-width: fit-content;
}

.editor-tab:hover {
    background: #21262d;
    color: #c9d1d9;
}

.editor-tab.active {
    background: #0d1117;
    color: #c9d1d9;
    border-top: 2px solid #58a6ff;
}

.editor-tab.dirty .tab-name {
    color: #e3b341;
}

.editor-tab.dirty .tab-dirty-indicator {
    color: #e3b341;
}

.tab-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.tab-dirty-indicator {
    font-size: 10px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.tab-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    padding: 0;
    background: transparent;
    border: none;
    color: #8b949e;
    cursor: pointer;
    border-radius: 3px;
    font-size: 16px;
    line-height: 1;
    transition: all 0.15s ease;
}

.tab-close:hover {
    background: #484f58;
    color: #c9d1d9;
}

/* === Editor Content Area === */
.editor-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* === CodeMirror Editor Instance === */
.cm-editor-instance {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

/* === Editor Placeholder === */
.editor-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #484f58;
    text-align: center;
    padding: 2rem;
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.editor-placeholder h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #8b949e;
}

.editor-placeholder p {
    font-size: 1rem;
    color: #484f58;
}

/* === Fallback Editor (when CodeMirror fails) === */
.fallback-editor {
    width: 100%;
    height: 100%;
    background: #0d1117;
    color: #c9d1d9;
    border: none;
    outline: none;
    resize: none;
    font-family: 'Fira Code', 'JetBrains Mono', 'SF Mono', 'Menlo', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
    padding: 12px;
}

/* === Action Buttons === */
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    color: #8b949e;
    cursor: pointer;
    border-radius: 4px;
    font-size: 16px;
    transition: all 0.15s ease;
}

.btn-icon:hover {
    background: #21262d;
    color: #c9d1d9;
}

.btn-icon:active {
    transform: scale(0.95);
}

/* === CodeMirror Customization === */
.codemirror-editor {
    height: 100%;
}

.codemirror-editor .cm-scroller {
    font-family: 'Fira Code', 'JetBrains Mono', 'SF Mono', 'Menlo', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
}

.codemirror-editor .cm-content {
    padding: 12px 0;
}

.codemirror-editor .cm-line {
    padding: 0 12px;
}

/* === Mobile Responsive === */
@media (max-width: 640px) {
    .editor-header {
        flex-direction: column;
        align-items: stretch;
    }

    .editor-tabs {
        border-right: none;
        border-bottom: 1px solid #30363d;
    }

    .editor-actions {
        border-left: none;
        border-top: 1px solid #30363d;
        padding: 4px;
        justify-content: center;
    }

    .editor-tab {
        padding: 10px 8px;
        font-size: 12px;
    }

    .tab-name {
        max-width: 120px;
    }

    .tab-close {
        width: 28px;
        height: 28px;
        font-size: 18px;
    }

    .btn-icon {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }

    .editor-placeholder h2 {
        font-size: 1.25rem;
    }

    .editor-placeholder p {
        font-size: 0.875rem;
    }
}

/* === Tablet Responsive === */
@media (min-width: 641px) and (max-width: 1024px) {
    .tab-name {
        max-width: 150px;
    }
}

/* === Touch Targets (Mobile) === */
@media (hover: none) and (pointer: coarse) {
    .editor-tab {
        padding: 12px;
        min-height: 44px;
    }

    .tab-close {
        width: 44px;
        height: 44px;
    }

    .btn-icon {
        width: 44px;
        height: 44px;
    }
}

/* === Dark Mode Scrollbar for Editor === */
.cm-editor-instance ::-webkit-scrollbar {
    width: 14px;
    height: 14px;
}

.cm-editor-instance ::-webkit-scrollbar-track {
    background: #0d1117;
}

.cm-editor-instance ::-webkit-scrollbar-thumb {
    background: #30363d;
    border-radius: 7px;
    border: 3px solid #0d1117;
}

.cm-editor-instance ::-webkit-scrollbar-thumb:hover {
    background: #484f58;
}

.cm-editor-instance ::-webkit-scrollbar-corner {
    background: #0d1117;
}

/* === Status Messages === */
.status-message {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
    animation: fadeIn 0.2s ease;
}

.status-success {
    color: #3fb950;
    background: rgba(63, 185, 80, 0.1);
}

.status-error {
    color: #f85149;
    background: rgba(248, 81, 73, 0.1);
}

.status-info {
    color: #58a6ff;
    background: rgba(88, 166, 255, 0.1);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-2px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Loading Spinner === */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #30363d;
    border-top-color: #58a6ff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 2rem auto;
}

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

/* === No Files State === */
.no-tabs {
    padding: 8px 12px;
    color: #484f58;
    font-size: 13px;
    font-style: italic;
}

/* === Focus Styles for Accessibility === */
.editor-tab:focus-visible,
.tab-close:focus-visible,
.btn-icon:focus-visible {
    outline: 2px solid #58a6ff;
    outline-offset: 2px;
}

/* === Print Styles === */
@media print {
    .editor-header,
    .editor-actions {
        display: none;
    }

    .editor-content {
        height: auto;
        overflow: visible;
    }
}