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

:root {
    --accent: #8b1e3f;
    --accent-glow: rgba(139, 30, 63, 0.25);
    --bg-deep: #0e0e12;
    --bg-panel: #14141a;
    --bg-elevated: #1a1a22;
    --bg-hover: #20202a;
    --border: #2a2a36;
    --text: #d4d4dc;
    --text-dim: #8a8a9a;
    --text-bright: #ffffff;
    --radius: 10px;
    --radius-sm: 6px;
    --font: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
    --mono: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', 'Consolas', monospace;
    --editor-padding: 12px;
    --editor-font-size: 13px;
    --editor-line-height: 1.6;
}

body[data-theme="wine"] {
    --bg-deep: #0c0a0e;
    --bg-panel: #120e14;
    --bg-elevated: #1a121c;
    --bg-hover: #241a28;
    --border: #2e2032;
    --accent: #a0234a;
}

body[data-theme="red"] {
    --bg-deep: #0e0a0a;
    --bg-panel: #140e0e;
    --bg-elevated: #1c1212;
    --bg-hover: #281818;
    --border: #322020;
    --accent: #c41e3a;
}

html, body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font);
    background: var(--bg-deep);
    color: var(--text);
    font-size: 13px;
}

.extra-app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: relative;
}

.extra-app::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="120" height="120" viewBox="0 0 120 120"><path d="M20 20 Q35 10 50 20 Q65 30 50 40 Q35 50 20 40 Q5 30 20 20 Z" fill="none" stroke="%23a0234a" stroke-width="0.5" opacity="0.06"/><circle cx="90" cy="90" r="2.5" fill="%23a0234a" opacity="0.05"/></svg>');
    background-repeat: repeat;
    opacity: 0.4;
}

.extra-titlebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    height: 40px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    z-index: 10;
    position: relative;
}

.extra-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.extra-logo {
    color: var(--accent);
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

.extra-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-bright);
    letter-spacing: 0.3px;
}

.extra-by {
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 4px;
    padding-left: 8px;
    border-left: 1px solid var(--border);
}

.extra-title-actions {
    display: flex;
    gap: 4px;
}

.extra-btn-icon {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-dim);
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.extra-main {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.extra-activity {
    width: 48px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 0;
    gap: 4px;
    position: relative;
}

.extra-act-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--text-dim);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.extra-act-btn:hover {
    background: var(--bg-hover);
    color: var(--text-bright);
}

.extra-act-btn.active {
    color: var(--accent);
    background: var(--bg-hover);
}

.extra-act-btn.active::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--accent);
    border-radius: 0 2px 2px 0;
}

.extra-activity-spacer {
    flex: 1;
}

.extra-vine-deco {
    width: 2px;
    height: 30px;
    background: linear-gradient(to bottom, transparent, var(--accent), transparent);
    opacity: 0.3;
    margin-bottom: 6px;
}

.extra-flower-deco {
    color: var(--accent);
    opacity: 0.45;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.extra-sidebar {
    width: 240px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.extra-panel {
    display: none;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.extra-panel.active {
    display: flex;
}

.extra-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-dim);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.extra-panel-actions {
    display: flex;
    gap: 2px;
}

.extra-panel-actions button {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    width: 22px;
    height: 22px;
    border-radius: 4px;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.extra-panel-actions button:hover {
    background: var(--bg-hover);
    color: var(--accent);
}

.extra-file-tree {
    flex: 1;
    overflow-y: auto;
    padding: 6px;
}

.extra-file-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text);
    transition: background 0.15s;
    position: relative;
}

.extra-file-item:hover {
    background: var(--bg-hover);
}

.extra-file-item.active {
    background: var(--accent);
    color: #fff;
}

.extra-file-item .extra-file-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.extra-file-item .extra-file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.extra-file-item .extra-file-actions {
    display: none;
    gap: 2px;
}

.extra-file-item:hover .extra-file-actions {
    display: flex;
}

.extra-file-actions button {
    background: transparent;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 1px 3px;
    border-radius: 3px;
    opacity: 0.7;
    display: flex;
    align-items: center;
    justify-content: center;
}

.extra-file-actions button:hover {
    opacity: 1;
    background: rgba(255,255,255,0.1);
}

.extra-search-box {
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.extra-search-box input {
    background: var(--bg-deep);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-family: var(--font);
}

.extra-search-box input:focus {
    outline: none;
    border-color: var(--accent);
}

.extra-search-actions {
    display: flex;
    gap: 4px;
}

.extra-search-actions button {
    flex: 1;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 5px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 11px;
    transition: all 0.15s;
}

.extra-search-actions button:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.extra-search-results {
    max-height: 300px;
    overflow-y: auto;
    font-size: 12px;
}

.extra-search-results .extra-result-item {
    padding: 4px 8px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    color: var(--text-dim);
}

.extra-search-results .extra-result-item:hover {
    background: var(--bg-hover);
    color: var(--text);
}

.extra-ext-list {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow-y: auto;
}

.extra-ext-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px;
    transition: all 0.2s;
}

.extra-ext-card:hover {
    border-color: var(--accent);
}

.extra-ext-card .extra-ext-title {
    font-weight: 600;
    font-size: 12px;
    margin-bottom: 4px;
    color: var(--text-bright);
}

.extra-ext-card .extra-ext-desc {
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.extra-ext-card button {
    background: var(--accent);
    border: none;
    color: #fff;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 11px;
    transition: all 0.2s;
}

.extra-ext-card button:hover {
    filter: brightness(1.2);
}

.extra-ext-card button.enabled {
    background: var(--bg-deep);
    color: var(--text-dim);
    border: 1px solid var(--border);
}

.extra-settings-body {
    padding: 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.extra-setting-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.extra-setting-group > label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-dim);
    font-weight: 600;
    margin-bottom: 2px;
}

.extra-setting-group select,
.extra-setting-group input[type="text"],
.extra-setting-group input[type="color"] {
    background: var(--bg-deep);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    width: 100%;
}

.extra-setting-group input[type="color"] {
    height: 32px;
    padding: 2px;
    cursor: pointer;
}

.extra-setting-group input[type="file"] {
    font-size: 11px;
    color: var(--text-dim);
}

.extra-setting-group input[type="range"] {
    accent-color: var(--accent);
    width: 100%;
}

.extra-setting-group .extra-check {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text);
    cursor: pointer;
    text-transform: none;
    letter-spacing: 0;
    font-weight: 400;
}

.extra-setting-group .extra-check input {
    accent-color: var(--accent);
}

.extra-setting-group button {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    transition: all 0.15s;
}

.extra-setting-group button:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.extra-made-by {
    text-align: center;
    font-size: 11px;
    color: var(--text-dim);
    padding-top: 10px;
    border-top: 1px solid var(--border);
    opacity: 0.6;
}

.extra-editor-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-deep);
    min-width: 0;
}

.extra-tabs {
    display: flex;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    flex-shrink: 0;
    min-height: 34px;
}

.extra-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 12px;
    height: 34px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    cursor: pointer;
    font-size: 12px;
    color: var(--text-dim);
    white-space: nowrap;
    transition: all 0.15s;
    position: relative;
}

.extra-tab:hover {
    background: var(--bg-hover);
    color: var(--text);
}

.extra-tab.active {
    background: var(--bg-deep);
    color: var(--text-bright);
    box-shadow: inset 0 -2px 0 var(--accent);
}

.extra-tab .extra-tab-close {
    font-size: 14px;
    opacity: 0.5;
    border: none;
    background: none;
    color: inherit;
    cursor: pointer;
    padding: 0 2px;
    border-radius: 3px;
}

.extra-tab .extra-tab-close:hover {
    opacity: 1;
    background: rgba(255,255,255,0.1);
}

.extra-tab .extra-unsaved {
    color: var(--accent);
    font-size: 16px;
    line-height: 1;
}

.extra-editor-wrap {
    flex: 1;
    display: flex;
    position: relative;
    overflow: hidden;
}

.extra-line-numbers {
    width: 48px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: var(--editor-font-size);
    line-height: var(--editor-line-height);
    padding: var(--editor-padding) 8px var(--editor-padding) 0;
    text-align: right;
    overflow: hidden;
    user-select: none;
    flex-shrink: 0;
    white-space: pre;
}

.extra-editor-stack {
    flex: 1;
    position: relative;
    overflow: hidden;
    min-width: 0;
}

.extra-syntax-layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--editor-padding);
    font-family: var(--mono);
    font-size: var(--editor-font-size);
    line-height: var(--editor-line-height);
    pointer-events: none;
    white-space: pre;
    overflow: hidden;
    z-index: 1;
    color: var(--text-bright);
    word-wrap: normal;
    overflow-wrap: normal;
}

.extra-syntax-layer.wrap {
    white-space: pre-wrap;
    word-break: break-word;
}

.extra-code-input {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    color: transparent;
    caret-color: var(--accent);
    font-family: var(--mono);
    font-size: var(--editor-font-size);
    line-height: var(--editor-line-height);
    padding: var(--editor-padding);
    resize: none;
    outline: none;
    overflow: auto;
    white-space: pre;
    tab-size: 4;
    z-index: 2;
}

.extra-code-input.wrap {
    white-space: pre-wrap;
    word-break: break-word;
}

.extra-code-input::selection {
    background: var(--accent);
    color: #fff;
}

.extra-autocomplete {
    position: absolute;
    background: var(--bg-elevated);
    border: 1px solid var(--accent);
    border-radius: var(--radius-sm);
    max-height: 150px;
    overflow-y: auto;
    min-width: 140px;
    z-index: 20;
    display: none;
    box-shadow: 0 6px 20px rgba(0,0,0,0.5);
}

.extra-autocomplete.visible {
    display: block;
}

.extra-autocomplete div {
    padding: 4px 10px;
    font-size: 12px;
    font-family: var(--mono);
    cursor: pointer;
    color: var(--text);
}

.extra-autocomplete div:hover,
.extra-autocomplete div.selected {
    background: var(--accent);
    color: #fff;
}

.extra-preview-area {
    width: 380px;
    background: var(--bg-panel);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.3s;
}

.extra-preview-area.full {
    width: 100%;
    position: absolute;
    inset: 0;
    z-index: 100;
}

.extra-preview-area.hidden {
    display: none;
}

.extra-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-dim);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}

.extra-preview-actions {
    display: flex;
    gap: 4px;
}

.extra-preview-actions button {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-dim);
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.extra-preview-actions button:hover {
    background: var(--bg-hover);
    color: var(--accent);
    border-color: var(--border);
}

.extra-preview-frame {
    flex: 1;
    border: none;
    background: #fff;
}

.extra-statusbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 26px;
    padding: 0 12px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-dim);
    z-index: 10;
}

.extra-status-left,
.extra-status-right {
    display: flex;
    gap: 14px;
    align-items: center;
}

.extra-status-right span {
    cursor: default;
}

.extra-brand-small {
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.4px;
}

.extra-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.extra-modal.visible {
    display: flex;
}

.extra-modal-box {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    width: 360px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.6);
}

.extra-modal-box h3 {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--text-bright);
}

.extra-confirm-text {
    font-size: 12px;
    color: var(--text-dim);
    margin-bottom: 16px;
    line-height: 1.5;
}

.extra-modal-box input {
    width: 100%;
    background: var(--bg-deep);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 14px;
}

.extra-modal-box input:focus {
    outline: none;
    border-color: var(--accent);
}

.extra-modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.extra-modal-actions button {
    padding: 6px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-panel);
    color: var(--text);
    cursor: pointer;
    font-size: 12px;
    transition: all 0.15s;
}

.extra-modal-actions button:first-child {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.extra-modal-actions button:hover {
    filter: brightness(1.15);
}

.extra-newfile-options {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-bottom: 14px;
}

.extra-newfile-opt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 10px 4px;
    background: var(--bg-deep);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-dim);
    cursor: pointer;
    font-size: 11px;
    transition: all 0.18s;
    font-family: var(--font);
}

.extra-newfile-opt:hover {
    border-color: var(--accent);
    color: var(--text-bright);
    transform: translateY(-1px);
}

.extra-newfile-opt.selected {
    border-color: var(--accent);
    background: var(--bg-hover);
    color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.extra-newfile-name-row {
    display: flex;
    align-items: center;
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    overflow: hidden;
}

.extra-newfile-name-row input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    padding: 8px 10px;
    font-size: 13px;
    outline: none;
    margin: 0;
}

.extra-newfile-name-row span {
    padding: 0 12px;
    color: var(--accent);
    font-family: var(--mono);
    font-size: 12px;
    border-left: 1px solid var(--border);
    background: var(--bg-panel);
    align-self: stretch;
    display: flex;
    align-items: center;
}

.extra-context-menu {
    position: fixed;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 4px;
    min-width: 160px;
    z-index: 2000;
    display: none;
    box-shadow: 0 8px 28px rgba(0,0,0,0.6);
}

.extra-context-menu.visible {
    display: block;
}

.extra-ctx-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text);
    transition: background 0.12s;
}

.extra-ctx-item:hover {
    background: var(--accent);
    color: #fff;
}

.extra-ctx-item.extra-ctx-danger:hover {
    background: #c41e3a;
}

.extra-ctx-sep {
    height: 1px;
    background: var(--border);
    margin: 4px 6px;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

@media (max-width: 900px) {
    .extra-sidebar {
        width: 180px;
    }
    .extra-preview-area {
        width: 260px;
    }
    .extra-preview-area.full {
        width: 100%;
    }
}

@media (max-width: 680px) {
    .extra-sidebar {
        position: absolute;
        left: 48px;
        top: 0;
        bottom: 0;
        z-index: 50;
        box-shadow: 4px 0 20px rgba(0,0,0,0.5);
    }
    .extra-preview-area {
        display: none;
    }
    .extra-by {
        display: none;
    }
}