/* ============================================
   ADVANCED FEATURES - SHADERS & 3D
   ============================================ */

/* Vignetting & Grain */
body {
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
    pointer-events: none;
    z-index: 10001;
    mix-blend-mode: multiply;
}

/* Hardware Footer */
.hardware-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-md) var(--space-lg);
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--font-size-xs);
    z-index: 998;
    overflow-x: auto;
}

.system-bus {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.bus-item {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
    white-space: nowrap;
}

.bus-label {
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.bus-value {
    color: var(--color-text-primary);
    font-weight: 600;
}

.led {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--space-xs);
    animation: ledPulse 2s ease-in-out infinite;
}

.led-green {
    background: #10b981;
    box-shadow: 0 0 10px #10b981;
}

.led-red {
    background: var(--color-accent);
    box-shadow: 0 0 10px var(--color-accent);
}

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

.bus-github {
    margin-left: auto;
}

/* Time-Travel Scrollbar */
.time-travel-scrollbar {
    position: fixed;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 120px;
    height: 60vh;
    z-index: 997;
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--font-size-xs);
}

.time-travel-scrollbar::before {
    content: '';
    position: absolute;
    inset: -200px -200px;
    background: radial-gradient(ellipse at center, rgba(239, 68, 68, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.scrollbar-track {
    position: absolute;
    right: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
}

.scrollbar-thumb {
    position: absolute;
    right: 0;
    width: 2px;
    height: 30%;
    background: var(--color-accent);
    box-shadow: 0 0 10px var(--color-accent);
    transition: top 0.1s linear;
}

.scrollbar-commits {
    position: absolute;
    right: var(--space-md);
    top: 0;
    width: 80px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding-top: var(--space-md);
}

.commit-hash {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    opacity: 0.5;
    transition: opacity 0.3s, color 0.3s;
}

.commit-hash.active {
    opacity: 1;
    color: var(--color-accent);
}

.scrollbar-directory {
    position: absolute;
    right: var(--space-md);
    bottom: var(--space-lg);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
}

.scrollbar-code {
    position: absolute;
    right: calc(var(--space-md) + 90px);
    top: 0;
    width: 200px;
    height: 100%;
    font-size: var(--font-size-xs);
    color: var(--color-success);
    font-family: 'JetBrains Mono', monospace;
    overflow: hidden;
    white-space: pre-wrap;
    word-break: break-all;
}

/* 3D Background Canvas */
.scrollbar-3d-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 600px;
    pointer-events: none;
    z-index: -1;
    opacity: 0.6;
}

/* Logic Node Modal */
.logic-node-modal {
    position: fixed;
    inset: 0;
    z-index: 10002;
    display: none;
    align-items: center;
    justify-content: center;
}

.logic-node-modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    width: 90vw;
    height: 90vh;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: var(--space-lg);
    z-index: 1;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    width: 100%;
    height: calc(100% - 60px);
}

#logicNodeCanvas {
    width: 100%;
    height: 100%;
}

/* Terminal Help Modal */
.terminal-help-modal {
    position: fixed;
    inset: 0;
    z-index: 10003;
    display: none;
    align-items: center;
    justify-content: center;
}

.terminal-help-modal.active {
    display: flex;
}

.help-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
}

.crt-window {
    position: relative;
    width: 600px;
    max-width: 90vw;
    background: #0a0a0a;
    border: 2px solid #333;
    box-shadow: 
        0 0 20px rgba(0, 255, 0, 0.3),
        inset 0 0 20px rgba(0, 255, 0, 0.1);
    z-index: 1;
    animation: crtFlicker 0.15s infinite;
}

@keyframes crtFlicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.98; }
}

.crt-header {
    background: #1a1a1a;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #333;
    font-family: 'JetBrains Mono', monospace;
    color: #00ff00;
}

.help-close {
    background: none;
    border: none;
    color: #00ff00;
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.crt-body {
    padding: var(--space-lg);
    font-family: 'JetBrains Mono', monospace;
    color: #00ff00;
    line-height: 1.8;
}

.help-command {
    margin-bottom: var(--space-md);
    display: flex;
    gap: var(--space-md);
}

.help-cmd {
    color: #00ff00;
    font-weight: 600;
    min-width: 100px;
}

.help-desc {
    color: #00ff88;
}

/* Hidden 3D Object */
.hidden-3d-object {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    z-index: 10004;
    display: none;
    pointer-events: none;
}

.hidden-3d-object.active {
    display: block;
}

/* Portal Hover Effect - WebGL Displacement */
.archive-image {
    position: relative;
    transition: filter 0.3s;
}

.archive-item:hover .archive-image {
    filter: blur(0.5px);
}

.portal-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.archive-item:hover .portal-canvas {
    opacity: 1;
}

/* 3D Cube Container for Tab Transitions */
.cube-container {
    position: fixed;
    inset: 0;
    z-index: 10005;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

.cube-container.active {
    opacity: 1;
    pointer-events: auto;
}

#cubeCanvas {
    width: 100%;
    height: 100%;
}