:root {
    --bg-os: #050505;
    --card-bg: #121212;
    --card-bg-alt: #1a1a1a;
    --text-primary: #ffffff;
    --text-dim: #999999;
    --accent-green: #00ff41;
    --accent-green-dim: rgba(0, 255, 65, 0.1);
    --accent-red: #ff3131;
    --border-soft: rgba(255, 255, 255, 0.05);

    --font-os: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-os);
    color: var(--text-primary);
    font-family: var(--font-os);
    line-height: 1.5;
    overflow-x: hidden;
}

/* OS Effects */
.crt-scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
        linear-gradient(90deg, rgba(255, 0, 0, 0.04), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.04));
    background-size: 100% 3px, 5px 100%;
    pointer-events: none;
    z-index: 100;
}

.vhs-effect {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
    pointer-events: none;
    z-index: 99;
}

/* Container */
.os-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 20px;
}

/* Header */
.os-header {
    margin-bottom: 80px;
}

.system-meta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-green);
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.glitch-title {
    font-size: 5rem;
    font-weight: 900;
    line-height: 0.9;
    margin-bottom: 15px;
    letter-spacing: -0.02em;
    position: relative;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-dim);
    letter-spacing: 0.05em;
}

.os-version {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-top: 10px;
}

/* OS Cards */
.os-card {
    background: var(--card-bg);
    border: 1px solid var(--border-soft);
    padding: 40px;
    margin-bottom: 30px;
    position: relative;
    border-radius: 4px;
}

.os-card.dark {
    background: black;
    border-color: #333;
}

.card-label {
    position: absolute;
    top: 10px;
    right: 15px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--accent-green);
    letter-spacing: 0.2em;
    opacity: 0.6;
}

.os-card h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    font-weight: 700;
}

/* Transform Visual */
.transform-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    margin: 40px 0;
}

.node {
    text-align: center;
    padding: 20px;
    border: 1px solid #333;
    width: 150px;
}

.node .icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 10px;
}

.node p {
    font-size: 0.8rem;
    font-weight: 700;
}

.node-arrow {
    font-family: var(--font-mono);
    color: var(--accent-green);
    letter-spacing: -3px;
    font-weight: 900;
}

/* Game Grid */
.game-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 20px;
}

.game-item h4 {
    color: var(--accent-green);
    margin-bottom: 15px;
    font-family: var(--font-mono);
}

.game-lessons {
    list-style: none;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.game-lessons li {
    margin-bottom: 8px;
}

.game-lessons li::before {
    content: "> ";
    color: var(--accent-green);
}

.simulation-stat {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: var(--accent-green-dim);
    color: var(--accent-green);
    padding: 10px;
    text-align: center;
}

/* Arch Map */
.arch-map {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.arch-layer {
    padding: 20px;
    border-left: 3px solid #333;
    transition: all 0.3s;
}

.arch-layer:hover {
    border-color: var(--accent-green);
    background: var(--accent-green-dim);
}

.arch-layer h5 {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-bottom: 10px;
    color: var(--text-dim);
}

.arch-tools {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tool-tag {
    font-size: 0.8rem;
    background: #000;
    padding: 5px 15px;
    border: 1px solid #333;
    border-radius: 4px;
}

.tool-tag.highlight {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

/* Anti-KPI */
.kpi-warning {
    color: var(--accent-red);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 5px 10px;
    border: 1px solid var(--accent-red);
    display: inline-block;
    margin-bottom: 20px;
    animation: flash 2s infinite;
}

.unquantifiable-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 20px 0;
}

.u-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.u-label {
    width: 100px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.u-bar-bg {
    flex: 1;
    height: 10px;
    background: #222;
    overflow: hidden;
}

.u-bar-fill {
    height: 100%;
    background: var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green-dim);
}

/* Chess Box */
.chess-box {
    display: flex;
    gap: 2px;
    background: #222;
    margin: 30px 0;
}

.c-half {
    flex: 1;
    padding: 30px;
    background: #000;
}

.c-half h5 {
    color: var(--accent-green);
    margin-bottom: 10px;
}

/* Lever Rack */
.lever-rack {
    display: flex;
    gap: 15px;
    margin: 30px 0;
}

.lever {
    flex: 1;
    padding: 15px;
    border: 1px solid #333;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-align: center;
    color: #444;
}

.lever.active {
    border-color: #ff3131;
    color: #ff3131;
    position: relative;
}

.lever.active::after {
    content: "LOCKED";
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.5rem;
}

/* Big Quote */
.big-quote {
    font-size: 2.2rem;
    font-weight: 900;
    line-height: 1.1;
    margin: 40px 0 20px;
}

.source {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    text-align: right;
}

@keyframes flash {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

.attention-spectrum {
    display: flex;
    height: 40px;
    border: 1px solid #333;
    margin: 20px 0;
    overflow: hidden;
}

.spectrum-segment {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
    color: black;
}

.spectrum-segment.red {
    background: #ff3131;
}

.spectrum-segment.cyan {
    background: #00e5ff;
}

.spectrum-segment.blue {
    background: #0084ff;
}

.spectrum-segment.green {
    background: #00ff41;
}

.os-log {
    background: #000;
    padding: 15px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-bottom: 20px;
}

/* Inquiry Box */
.inquiry-box {
    background: #0a0a0a;
    padding: 30px;
    border: 1px dashed var(--accent-green);
    margin: 20px 0;
}

.inquiry-prompt {
    font-family: var(--font-mono);
    color: var(--accent-green);
    margin-bottom: 15px;
    font-size: 0.85rem;
}

.inquiry-checklist {
    margin-top: 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* Bookshelf */
.bookshelf {
    display: flex;
    gap: 15px;
    margin: 30px 0;
}

.book-spine {
    flex: 1;
    background: #1a1a1a;
    padding: 20px;
    border-top: 4px solid #333;
    transition: all 0.3s;
}

.book-spine.accent {
    border-color: var(--accent-green);
}

.book-spine .bt {
    display: block;
    font-weight: 900;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.book-spine p {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* Partnership Grid */
.partnership-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 30px 0;
}

.partner {
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid #333;
}

.p-name {
    display: block;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--accent-green);
}

.humility-box {
    padding: 20px;
    background: var(--accent-green-dim);
    border-left: 3px solid var(--accent-green);
    font-style: italic;
    font-size: 0.95rem;
}

/* Game Deep Dive */
.game-deep-dive {
    margin-bottom: 30px;
}

.game-logic-list {
    list-style: none;
    margin-top: 15px;
}

.game-logic-list li {
    padding: 10px 0;
    border-bottom: 1px solid #222;
    font-size: 0.9rem;
}

.game-logic-list li strong {
    color: var(--accent-green);
}

/* Racing Overrides */
.racing-p {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-dim);
}

/* Battery Visual */
.battery-visual {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 30px 0;
}

.battery-head {
    width: 10px;
    height: 30px;
    background: #444;
    border-radius: 2px;
}

.battery-body {
    width: 250px;
    height: 60px;
    border: 3px solid #444;
    padding: 5px;
    position: relative;
}

.battery-level {
    height: 100%;
    background: var(--accent-green);
    transition: width 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 0 20px var(--accent-green);
}

.battery-controls {
    display: flex;
    gap: 10px;
}

.battery-controls button {
    background: transparent;
    border: 1px solid #444;
    color: white;
    padding: 10px 20px;
    cursor: pointer;
    font-family: var(--font-mono);
}

.battery-controls button:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

/* Matrix Box */
.matrix-box {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 30px 0;
}

.matrix-item {
    flex: 1;
    padding: 20px;
    text-align: center;
    border: 1px solid #333;
}

.m-val {
    display: block;
    font-weight: 900;
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--accent-green);
}

.matrix-item p {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Beta Status */
.beta-status {
    background: #000;
    padding: 20px;
    border: 1px solid #333;
    margin: 20px 0;
}

.status-indicator {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 15px;
}

.status-indicator.active {
    color: var(--accent-green);
}

.status-indicator.active::before {
    content: "● ";
    animation: pulse 1s infinite;
}

.bug-log {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-red);
    opacity: 0.7;
    margin-bottom: 5px;
}

/* Floor vs Ceiling */
.fc-visual {
    height: 120px;
    border-left: 2px solid #333;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px 20px;
    margin: 30px 0;
}

.ceiling {
    font-weight: 800;
    font-size: 0.9rem;
    color: #fff;
}

.floor {
    font-weight: 800;
    font-size: 0.9rem;
    color: var(--accent-green);
}

.fc-gap {
    flex: 1;
    border-left: 1px dashed #222;
    margin: 10px 0;
}

/* Context Console */
.console-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 20px;
}

.prompt-box {
    background: #000;
    padding: 20px;
    border: 1px solid var(--accent-green);
}

.p-header {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    margin-bottom: 10px;
    color: var(--accent-green);
}

/* Belief Evolution */
.belief-chart {
    border-left: 2px solid #222;
    padding-left: 20px;
}

.belief-line {
    padding: 10px 0;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.belief-line.highlight {
    color: #fff;
    font-weight: 700;
}

/* Meeting Viz */
.meeting-viz {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
}

.avatar {
    padding: 30px;
    border: 1px solid #333;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    background: #000;
}

.avatar.ideal {
    border-color: var(--accent-green);
    color: var(--accent-green);
    box-shadow: 0 0 20px var(--accent-green-dim);
}

.gap-v {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: #444;
    position: relative;
}

.gap-v::before,
.gap-v::after {
    content: "";
    position: absolute;
    width: 30px;
    height: 1px;
    background: #222;
    top: 50%;
}

.gap-v::before {
    left: -35px;
}

.gap-v::after {
    right: -35px;
}

@keyframes pulse {
    0% {
        opacity: 0.4;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.4;
    }
}

/* Social Mechanism */
.social-mechanism {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin: 30px 0;
    font-family: var(--font-mono);
}

.m-node {
    padding: 15px 30px;
    border: 1px solid #333;
    background: #000;
}

.m-node.highlight {
    border-color: var(--accent-green);
    box-shadow: 0 0 20px var(--accent-green-dim);
}

.m-node-v {
    color: var(--accent-green);
    font-size: 0.7rem;
}

/* Worldview Choice */
.worldview-choice {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}

.choice-item {
    padding: 20px;
    border: 1px solid #333;
    opacity: 0.5;
}

.choice-item.self {
    opacity: 1;
    border-color: var(--accent-green);
    background: var(--accent-green-dim);
}

.c-target {
    display: block;
    font-weight: 800;
    font-size: 0.8rem;
    margin-bottom: 5px;
    color: var(--accent-green);
}

/* Gym Stats */
.gym-stats {
    display: flex;
    justify-content: space-around;
    margin: 30px 0;
}

.g-brand {
    font-weight: 900;
    font-size: 1.1rem;
    color: #333;
    text-transform: uppercase;
}

/* Growth Comparison */
.growth-logic {
    margin: 30px 0;
}

.growth-compare {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}

.gc-item {
    flex: 1;
    padding: 15px;
    border: 1px solid #333;
    font-size: 0.75rem;
}

.gc-item.highlight {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

/* Deficiency Card */
.deficiency-card {
    background: #000;
    padding: 20px;
    border: 1px solid #333;
    margin: 20px 0;
    font-family: var(--font-mono);
}

.d-line {
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-bottom: 5px;
}

.d-line.highlight {
    color: var(--accent-red);
    margin-top: 10px;
}

/* Payment Flow */
.payment-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 30px 0;
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.p-step {
    padding: 10px;
    border: 1px solid var(--accent-green);
}

.p-arrow {
    color: var(--accent-green);
}

/* Racing Stats */
.market-comparison {
    display: flex;
    gap: 20px;
    margin: 30px 0;
}

.m-col {
    flex: 1;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid #333;
    border-radius: 4px;
}

.m-col.accent {
    border-color: var(--accent-green);
    background: var(--accent-green-dim);
}

.m-tag {
    display: block;
    font-weight: 800;
    margin-bottom: 10px;
    font-size: 0.8rem;
    color: var(--accent-green);
}

.m-divider {
    display: flex;
    align-items: center;
    font-weight: 900;
    color: #333;
}

/* Complexity Engine */
.comp-box {
    display: flex;
    gap: 20px;
    margin: 30px 0;
}

.comp-item {
    flex: 1;
    padding: 20px;
    border: 1px solid #333;
}

.comp-item.highlight {
    border-color: var(--accent-green);
    background: var(--accent-green-dim);
}

.c-val {
    display: block;
    font-weight: 800;
    margin-bottom: 10px;
}

.trap-log {
    background: #000;
    padding: 15px;
    border-left: 2px solid var(--accent-red);
}

/* Process Logic */
.logic-example {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 30px 0;
}

.ex-case {
    padding: 15px;
    border-bottom: 1px solid #333;
}

.ex-case h5 {
    color: var(--accent-green);
    margin-bottom: 10px;
}

/* History Hack */
.history-hack {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 20px 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.hack-step {
    padding: 10px;
    background: #000;
    border: 1px solid #1a1a1a;
}

.hack-step::before {
    content: "[ HACK_MODE ] ";
    color: var(--accent-green);
}

.trust-logic {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    margin-top: 15px;
    color: var(--accent-green);
}

/* Racing Stats */
.racing-stats {
    display: flex;
    gap: 20px;
    margin: 30px 0;
}

.stat-box {
    flex: 1;
    background: black;
    padding: 15px;
    border: 1px solid #e30613;
    text-align: center;
}

.s-label {
    display: block;
    font-size: 0.65rem;
    color: #e30613;
    font-family: var(--font-mono);
}

.s-val {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
}

/* Terminal */
.terminal {
    background: #000 !important;
    font-family: var(--font-mono);
}

.term-line {
    margin-bottom: 10px;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.term-line.highlight {
    color: var(--accent-green);
}

/* Footer */
.os-footer {
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid var(--border-soft);
}

.final-word {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 40px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-dim);
}

/* Reveal */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 600px) {
    .glitch-title {
        font-size: 3rem;
    }

    .game-grid,
    .matrix-box,
    .racing-stats {
        flex-direction: column;
        grid-template-columns: 1fr;
    }
}