/* ===================================================================
   WORKSPACE STYLES — Elevated Brutalism + Bento Grid + Fluid Pixel
   =================================================================== */

/* --- Design Tokens --- */
:root {
    --accent: #43BF6D;
    --accent-dim: rgba(67, 191, 109, 0.15);
    --accent-glow: rgba(67, 191, 109, 0.4);
    --bg-void: #020202;
    --bg-surface: #0d0d0d;
    --bg-elevated: #1e1e1e;
    --bg-panel: #252526;
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-active: rgba(67, 191, 109, 0.4);
    --text-primary: #e6e6e6;
    --text-secondary: #888;
    --text-muted: #555;
    --alert: #FF5F56;
    --warn: #FFBD2E;
    --ok: #27C93F;
    --font-mono: 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    --font-sans: 'Inter', 'Outfit', system-ui, sans-serif;
    --gap: clamp(12px, calc(24 * 1vw / 14.4), 24px);
    --radius: 6px;
    --sidebar-w: clamp(180px, calc(260 * 1vw / 14.4), 280px);
    --statusbar-h: 28px;
    --tabbar-h: 38px;
    --titlebar-h: 40px;
    --terminal-h: clamp(180px, 28vh, 320px);
}

/* --- Fluid Pixel Helper --- */
/* V = clamp(Vmin, Vtarget * VW/1440, Vmax) */
/* Usage: font-size: clamp(12px, calc(16 * 1vw / 14.4), 18px); */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg-void);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

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

::selection { background: var(--accent); color: #000; }

/* --- Layout Shell --- */
.workspace-shell {
    display: grid;
    grid-template-rows: var(--titlebar-h) 1fr var(--statusbar-h);
    height: 100vh;
    width: 100vw;
}

.workspace-body {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    overflow: hidden;
}

.main-area {
    display: grid;
    grid-template-rows: var(--tabbar-h) 1fr;
    overflow: hidden;
    position: relative;
}

/* --- Title Bar --- */
.titlebar {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
    user-select: none;
    -webkit-app-region: drag;
}

.titlebar-left { display: flex; align-items: center; gap: 12px; }
.titlebar-dots { display: flex; gap: 8px; }
.titlebar-dot {
    width: 12px; height: 12px; border-radius: 50%;
    border: none; cursor: pointer; transition: opacity 0.2s;
}
.titlebar-dot:hover { opacity: 0.7; }
.titlebar-dot.close { background: var(--alert); }
.titlebar-dot.minimize { background: var(--warn); }
.titlebar-dot.maximize { background: var(--ok); }
.titlebar-center { color: var(--text-muted); letter-spacing: 0.5px; }
.titlebar-right { display: flex; gap: 16px; align-items: center; }
.titlebar-nav {
    background: none; border: 1px solid var(--border-subtle); color: var(--text-secondary);
    padding: 4px 12px; font-family: var(--font-mono); font-size: 10px;
    cursor: pointer; transition: all 0.2s; text-transform: uppercase;
    text-decoration: none; display: inline-block;
}
.titlebar-nav:hover { background: var(--accent); color: #000; border-color: var(--accent); }

/* --- Sidebar / File Explorer --- */
.sidebar {
    background: var(--bg-surface);
    border-right: 1px solid var(--border-subtle);
    overflow-y: auto;
    overflow-x: hidden;
    padding-top: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    user-select: none;
}

.sidebar-header {
    padding: 8px 16px;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.tree-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px 4px calc(var(--depth, 0) * 16px + 12px);
    cursor: pointer;
    color: var(--text-secondary);
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
    font-size: 13px;
    border-left: 2px solid transparent;
}
.tree-item:hover { background: rgba(255,255,255,0.04); color: var(--text-primary); }
.tree-item.active {
    background: var(--accent-dim);
    color: var(--accent);
    border-left-color: var(--accent);
}
.tree-item.highlighted {
    background: var(--accent-dim);
    border-left-color: var(--accent);
    animation: highlight-pulse 1s ease-out;
}

@keyframes highlight-pulse {
    0% { box-shadow: inset 0 0 8px var(--accent-glow); }
    100% { box-shadow: none; }
}

.tree-icon { font-size: 14px; flex-shrink: 0; width: 18px; text-align: center; }
.tree-label { overflow: hidden; text-overflow: ellipsis; }
.tree-children { overflow: hidden; transition: max-height 0.25s ease; }
.tree-children.collapsed { max-height: 0 !important; }

/* --- Tab Bar --- */
.tabbar {
    display: flex;
    align-items: stretch;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    overflow-x: auto;
    overflow-y: hidden;
}

.tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    border-right: 1px solid var(--border-subtle);
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s;
    min-width: 120px;
    position: relative;
}
.tab:hover { background: rgba(255,255,255,0.03); color: var(--text-secondary); }
.tab.active {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent);
}
.tab-close {
    font-size: 14px; opacity: 0; cursor: pointer; margin-left: auto;
    background: none; border: none; color: inherit; padding: 0 2px;
    transition: opacity 0.15s;
}
.tab:hover .tab-close, .tab.active .tab-close { opacity: 0.6; }
.tab-close:hover { opacity: 1 !important; color: var(--alert); }

/* --- Editor Pane --- */
.editor-pane {
    background: var(--bg-elevated);
    overflow: auto;
    position: relative;
}

.editor-content {
    padding: 20px 24px;
    font-family: var(--font-mono);
    font-size: clamp(12px, calc(14 * 1vw / 14.4), 15px);
    line-height: 1.7;
    tab-size: 4;
    counter-reset: line;
}

.editor-content pre {
    margin: 0;
    white-space: pre;
    overflow-x: auto;
}

.editor-line-numbers {
    position: absolute;
    left: 0;
    top: 20px;
    width: 50px;
    text-align: right;
    padding-right: 12px;
    font-family: var(--font-mono);
    font-size: clamp(12px, calc(14 * 1vw / 14.4), 15px);
    line-height: 1.7;
    color: var(--text-muted);
    user-select: none;
    pointer-events: none;
}

/* Welcome / Dashboard */
.dashboard {
    padding: var(--gap);
    overflow-y: auto;
    overflow-x: hidden;
}

/* --- Bento Grid --- */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(clamp(250px, calc(320 * 1vw / 14.4), 380px), 1fr));
    gap: var(--gap);
}

.bento-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: clamp(16px, calc(24 * 1vw / 14.4), 28px);
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
    position: relative;
    overflow: hidden;
}
.bento-card:hover {
    border-color: var(--border-active);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.bento-card.span-2 { grid-column: span 2; }
.bento-card.span-row-2 { grid-row: span 2; }

.bento-card-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}
.bento-card-title {
    font-size: clamp(18px, calc(24 * 1vw / 14.4), 28px);
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 8px;
    line-height: 1.1;
}
.bento-card-body {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.bento-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    padding: 2px 8px;
    border-radius: 3px;
    text-transform: uppercase;
    transition: all 0.2s;
    cursor: pointer;
}
.bento-tag:hover, .bento-tag.active {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

/* --- Terminal (jQuery Terminal overrides) --- */
.terminal-container {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    font-family: var(--font-mono) !important;
    font-size: 13px;
    height: var(--terminal-h);
    position: relative;
}

.terminal-resize-handle {
    position: absolute; top: 0; left: 0; right: 0; height: 4px;
    cursor: ns-resize; z-index: 10;
}
.terminal-resize-handle:hover { background: var(--accent); }

.terminal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 4px 12px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-subtle);
    font-size: 11px; color: var(--text-muted);
}

.terminal-header-tabs { display: flex; gap: 12px; }
.terminal-header-tab {
    padding: 2px 8px; cursor: pointer; transition: color 0.2s;
    background: none; border: none; color: var(--text-muted);
    font-family: var(--font-mono); font-size: 11px;
}
.terminal-header-tab:hover { color: var(--text-primary); }
.terminal-header-tab.active { color: var(--accent); border-bottom: 1px solid var(--accent); }

/* jQuery Terminal theme overrides */
.terminal-container .terminal { background: transparent !important; }
.terminal-container .cmd .cursor { background: var(--accent) !important; }
.terminal-container .terminal-output { color: var(--text-primary) !important; }

/* --- Status Bar --- */
.statusbar {
    background: var(--accent);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    user-select: none;
}
.statusbar-section { display: flex; align-items: center; gap: 16px; }

/* --- Game Canvas --- */
.game-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.9);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
.game-overlay.active { display: flex; }
.game-canvas-wrapper {
    border: 1px solid var(--border-active);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
}
.game-hud {
    display: flex;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    font-family: var(--font-mono);
    font-size: 12px;
}
.game-close {
    position: absolute; top: -40px; right: 0;
    background: none; border: 1px solid var(--border-subtle);
    color: var(--text-secondary); padding: 4px 16px;
    font-family: var(--font-mono); font-size: 11px;
    cursor: pointer; transition: all 0.2s;
}
.game-close:hover { background: var(--alert); color: #fff; border-color: var(--alert); }

/* --- Blog Cards --- */
.blog-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--gap);
}

.blog-card {
    cursor: pointer;
    transition: all 0.3s;
}
.blog-card:hover .bento-card-title { color: var(--accent); }
.blog-card-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 12px;
}

/* --- Animations --- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.4s ease-out forwards; }

@keyframes glitch {
    0% { transform: translate(0); filter: brightness(1); }
    20% { transform: translate(-2px, 1px); filter: brightness(1.5) hue-rotate(10deg); }
    40% { transform: translate(2px, -1px); filter: brightness(0.8) hue-rotate(-10deg); }
    60% { transform: translate(-1px, 2px); filter: brightness(1.2); }
    80% { transform: translate(1px, -2px); filter: brightness(1); }
    100% { transform: translate(0); filter: brightness(1); }
}

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

/* --- Accessibility --- */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (max-width: 768px) {
    .workspace-body { grid-template-columns: 1fr; }
    .sidebar { display: none; }
    .sidebar.mobile-open {
        display: block;
        position: fixed; inset: 0; z-index: 100;
        width: 280px;
        box-shadow: 4px 0 24px rgba(0,0,0,0.5);
    }
    .bento-card.span-2 { grid-column: span 1; }
    .bento-card.span-3 { grid-column: span 1; }
}

/* --- span-3 full-width card --- */
.bento-card.span-3 { grid-column: 1 / -1; }

/* --- Systems Visualizer --- */
.systems-viz-chrome {
    max-width: 960px;
    width: 90vw;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    overflow: hidden;
}
.systems-viz-titlebar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-elevated);
}
.systems-close-btn {
    background: none;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 18px;
    width: 28px;
    height: 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.systems-close-btn:hover { background: var(--alert); color: #fff; border-color: var(--alert); }
.systems-viz-body {
    display: grid;
    grid-template-columns: 1fr 280px;
    min-height: 350px;
}
.systems-viz-body svg {
    width: 100%;
    height: 100%;
    min-height: 350px;
}
.systems-detail-panel {
    padding: 16px;
    border-left: 1px solid var(--border-subtle);
    overflow-y: auto;
    background: rgba(2, 2, 2, 0.5);
}
.sys-node rect { transition: stroke-width 0.2s; }
.sys-node:hover rect { stroke-width: 2.5 !important; }
.sys-edge { transition: opacity 0.2s; }

/* --- Sudo Root Access Theme --- */
body.root-access {
    --accent: #FF5F56;
}
body.root-access .statusbar {
    background: #FF5F56;
    color: #000;
}
body.root-access .statusbar span { color: #000; }
body.root-access .titlebar-dot.close { background: #43BF6D; }

@media (max-width: 640px) {
    .systems-viz-body { grid-template-columns: 1fr; }
    .systems-detail-panel { border-left: none; border-top: 1px solid var(--border-subtle); }
}

/* --- Tactile Hacker-OS Polish --- */
.workspace-shell::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    background: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
    opacity: 0.05;
    mix-blend-mode: overlay;
}

/* --- Terminal Scanlines & Glow --- */
@keyframes scanline {
    0% { transform: translateY(-100%); opacity: 0; }
    50% { opacity: 0.1; }
    100% { transform: translateY(100vh); opacity: 0; }
}
.terminal-wrapper.focused .terminal {
    text-shadow: 0 0 2px var(--accent);
}
.terminal-wrapper.focused::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 50;
    background: linear-gradient(to bottom, transparent, rgba(67, 191, 109, 0.2), transparent);
    height: 10px;
    width: 100%;
    animation: scanline 4s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
    .terminal-wrapper.focused::after { animation: none; display: none; }
}

/* --- Developer Notes (.env toggle) --- */
.dev-note {
    display: none;
    font-family: var(--font-mono);
    font-size: 10px;
    color: #FFBD2E;
    margin-top: 12px;
    padding: 8px;
    background: rgba(255, 189, 46, 0.1);
    border-left: 2px solid #FFBD2E;
    line-height: 1.4;
}
body.debug-mode .dev-note {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

/* --- Split Diff Panel --- */
.split-diff-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(12px, calc(20 * 1vw / 14.4), 24px);
    margin-top: 24px;
}
.split-diff-panel {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    overflow: hidden;
}
.diff-header {
    font-weight: 600;
    letter-spacing: 0.5px;
}
.diff-old { border-color: #ff5f5633; }
.diff-new { border-color: #43bf6d33; }

@media (max-width: 640px) {
    .split-diff-container { grid-template-columns: 1fr; gap: 12px; }
}