@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400&family=Space+Mono:wght@400&display=swap');

@font-face {
    font-family: "HackGenConsoleNF";
    src: url("./src/fonts/HackGenConsoleNF-Regular.ttf") format("truetype");
}

body {
    font-family: var(--font-ui);
    margin: 0;
    padding: 0;
    background-color: var(--bg-app);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

:root {
    /* Color Palette - Premium Dark Theme */
    --bg-app: #0f1115;
    --bg-header: #161b22;
    --bg-pane: #1e2229;
    --bg-canvas: #1e2229;
    /* Matches pane for seamless look, or darker for contrast */
    --bg-hover: #2a2f38;
    --bg-active: #323842;

    --border-subtle: #30363d;
    --border-accent: #58a6ff;

    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-accent: #58a6ff;

    --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Space Mono', monospace;

    --header-height: 50px;
    --resizer-width: 4px;
}

* {
    box-sizing: border-box;
    color-scheme: dark;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Header */
.app-header {
    height: var(--header-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    padding: 0 16px;
    justify-content: space-between;
}

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

.logo-text {
    font-weight: 600;
    font-size: 18px;
    color: var(--text-primary);
}

.badge {
    background-color: rgba(88, 166, 255, 0.15);
    color: var(--text-accent);
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.controls {
    display: flex;
    gap: 16px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

label {
    font-size: 12px;
    color: var(--text-secondary);
}

select {
    background-color: var(--bg-app);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 4px 8px;
    font-family: inherit;
    font-size: 12px;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s;
}

select:hover {
    border-color: var(--text-secondary);
}

/* Workspace (Layout) */
.workspace {
    flex-grow: 1;
    display: flex;
    flex-direction: row;
    /* Horizontal split by default */
    overflow: hidden;
    position: relative;
    background-color: var(--bg-app);
}

.pane {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 200px;
    background-color: var(--bg-pane);
}

.editor-pane {
    width: 60%;
    /* default split */
}

.terminal-pane {
    width: 40%;
}

.pane-header {
    height: 32px;
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    padding: 0 12px;
    justify-content: space-between;
    font-size: 11px;
    user-select: none;
}

.pane-title {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.file-status,
.terminal-status {
    color: var(--text-secondary);
}

/* Canvas & Input */
.canvas-container {
    flex-grow: 1;
    position: relative;
    overflow: hidden;
    background-color: var(--bg-canvas);
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: text;
}

/* Hidden Textarea for IME */
.hidden-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 1px;
    opacity: 0;
    padding: 0;
    border: none;
    z-index: -1;
    pointer-events: none;
    /* We'll manage focus programmatically */
}

/* Explorer Pane */
.explorer-pane {
    width: 200px;
    flex-grow: 0;
    background-color: var(--bg-pane);
    border-right: 1px solid var(--border-subtle);
}

.explorer-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 8px 0;
    font-size: 13px;
    color: var(--text-secondary);
}

.explorer-item {
    padding: 2px 12px;
    cursor: pointer;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
    user-select: none;
}

.explorer-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.explorer-item.folder::before {
    content: "📁";
    font-size: 12px;
}

.explorer-item.folder.open::before {
    content: "📂";
}

.explorer-item.file::before {
    content: "📄";
    font-size: 12px;
}

.explorer-children {
    padding-left: 16px;
}

/* Tabs */
.tabs-container {
    height: 35px;
    background-color: var(--bg-header);
    display: flex;
    align-items: flex-end;
    overflow-x: auto;
    border-bottom: 1px solid var(--border-subtle);
}

.tabs-container::-webkit-scrollbar {
    height: 3px;
}

.tab {
    height: 32px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--bg-pane);
    border: 1px solid var(--border-subtle);
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    margin-right: 2px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s, color 0.2s;
    user-select: none;
}

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

.tab.active {
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    border-top: 2px solid var(--border-accent);
}

.tab.provisional .tab-title {
    font-style: italic;
}

.tab-close {
    font-size: 14px;
    opacity: 0.5;
    padding: 2px;
    border-radius: 50%;
}

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

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    font-size: 12px;
    border-radius: 4px;
}

.btn-danger {
    background-color: #e06c75 !important;
    color: white !important;
}

.btn-danger:hover {
    background-color: #be5046 !important;
}

.icon-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* --- Status Bar --- */
.status-bar {
    height: 22px;
    background-color: var(--bg-pane);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
    font-size: 11px;
    color: var(--text-secondary);
    user-select: none;
    z-index: 100;
}

.status-left,
.status-right {
    display: flex;
    gap: 15px;
}

#cursor-pos {
    min-width: 100px;
}

.status-right span {
    padding: 0 5px;
}

.hidden {
    display: none !important;
}