/* ═══════════════════════════════════════════════
   IMPERIAL ENTROPY — Main Stylesheet
   VaultBBS aesthetic: phosphor green on void black
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
    --bg: #050505;
    --bg-elevated: #0a0a0a;
    --bg-card: #0d0d0d;
    --border: #1a1a1a;
    --border-bright: #2a2a2a;
    --text: #e0e0e0;
    --text-dim: #888;
    --text-muted: #555;
    --green: #00ff41;
    --green-dim: #006618;
    --green-glow: rgba(0, 255, 65, 0.3);
    --amber: #ffb000;
    --amber-dim: #8a5000;
    --red: #ff2040;
    --red-dim: #660015;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --font-sans: 'Space Grotesk', system-ui, sans-serif;
    --scanline-opacity: 0.03;
}

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

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Scanlines overlay */
body::after {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, var(--scanline-opacity)) 0px,
        rgba(0, 0, 0, var(--scanline-opacity)) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 10000;
}

.hidden { display: none !important; }

a { color: var(--amber); text-decoration: none; }
a:hover { text-shadow: 0 0 8px rgba(255, 176, 0, 0.5); }

/* ═══════════════════════════════════════════════
   BOOT SEQUENCE
   ═══════════════════════════════════════════════ */
.boot-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

.boot-text {
    font-family: var(--font-mono);
    color: var(--green);
    text-shadow: 0 0 10px var(--green-glow);
    max-width: 600px;
    width: 90%;
}

.boot-line {
    opacity: 0;
    animation: bootLine 0.5s ease forwards;
}

@keyframes bootLine {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.boot-prompt {
    margin-top: 20px;
    font-size: 16px;
    animation: blink 1s infinite;
}

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

/* ═══════════════════════════════════════════════
   GAME MAP — Level Selection
   ═══════════════════════════════════════════════ */
.game-map {
    max-width: 700px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
}

.game-header {
    text-align: center;
    margin-bottom: 40px;
}

.game-brand {
    margin-bottom: 8px;
}

.game-logo {
    font-size: 48px;
    color: var(--green);
    text-shadow: 0 0 20px var(--green-glow), 0 0 40px rgba(0, 255, 65, 0.15);
    display: block;
    line-height: 1.2;
}

.game-title {
    font-family: var(--font-mono);
    font-size: 28px;
    font-weight: 700;
    color: var(--green);
    text-shadow: 0 0 10px var(--green-glow);
    letter-spacing: 6px;
    margin-top: 4px;
}

.game-progression {
    margin: 16px 0;
}

.progress-bar {
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green-glow);
    transition: width 0.5s ease;
}

.progress-text {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-dim);
    letter-spacing: 2px;
}

.game-attribution {
    font-size: 13px;
    color: var(--amber-dim);
    margin-top: 8px;
    font-family: var(--font-mono);
}

.game-attribution a {
    color: var(--amber);
}

/* Level Path */
.level-path {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
}

/* Connecting line between levels */
.level-path::before {
    content: '';
    position: absolute;
    left: 32px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
    z-index: 0;
}

.level-node {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    font-family: var(--font-sans);
    color: var(--text);
    width: 100%;
}

.level-node:hover:not(:disabled) {
    border-color: var(--level-color, var(--green));
    background: var(--bg-elevated);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
}

.level-node:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.level-node.locked {
    opacity: 0.4;
}

.level-node.complete {
    border-color: var(--green-dim);
}

.level-icon {
    font-size: 32px;
    line-height: 1;
    flex-shrink: 0;
    min-width: 40px;
    text-align: center;
}

.level-title {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text);
}

.level-subtitle {
    font-size: 13px;
    color: var(--text-dim);
    margin-top: 4px;
    line-height: 1.4;
}

/* ═══════════════════════════════════════════════
   LEVEL / CHALLENGE VIEW
   ═══════════════════════════════════════════════ */
.game-level {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
}

.level-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.nav-back {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 6px 12px;
    cursor: pointer;
    border-radius: 2px;
    letter-spacing: 1px;
}

.nav-back:hover {
    border-color: var(--green);
    color: var(--green);
}

.level-progress {
    display: flex;
    gap: 6px;
}

.challenge-dot {
    font-size: 10px;
    color: var(--text-muted);
    transition: color 0.3s;
}

.challenge-dot.current {
    color: var(--level-color, var(--green));
    text-shadow: 0 0 6px var(--level-color, var(--green));
}

.challenge-dot.done {
    color: var(--green);
}

.level-label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

/* Challenge */
.challenge {
    padding-bottom: 60px;
}

.challenge-header {
    margin-bottom: 24px;
}

.challenge-title {
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 700;
    color: var(--level-color, var(--green));
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.challenge-description {
    font-size: 14px;
    color: var(--amber);
    font-family: var(--font-mono);
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.challenge-prompt {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 3px solid var(--level-color, var(--green));
    padding: 20px;
    margin-bottom: 24px;
    line-height: 1.8;
    font-size: 15px;
}

.challenge-prompt p {
    margin-bottom: 12px;
}

.challenge-prompt p:last-child {
    margin-bottom: 0;
}

/* Options */
.challenge-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.option-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 16px 20px;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.option-btn:hover:not(:disabled) {
    border-color: var(--level-color, var(--green));
    background: var(--bg-elevated);
    box-shadow: 0 0 12px rgba(0, 255, 65, 0.1);
}

.option-btn.selected {
    border-color: var(--level-color, var(--green));
    background: rgba(0, 255, 65, 0.05);
}

.option-btn.correct-answer {
    border-color: var(--green);
    background: rgba(0, 255, 65, 0.08);
}

.option-btn:disabled {
    cursor: default;
}

/* Feedback */
.challenge-feedback {
    background: var(--bg-elevated);
    border: 1px solid var(--border-bright);
    border-left: 3px solid var(--level-color, var(--green));
    padding: 20px;
    margin-top: 16px;
    border-radius: 3px;
}

.feedback-text {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 16px;
}

/* Buttons */
.game-btn {
    background: transparent;
    border: 2px solid var(--level-color, var(--green));
    color: var(--level-color, var(--green));
    font-family: var(--font-mono);
    font-size: 16px;
    padding: 14px 32px;
    cursor: pointer;
    letter-spacing: 3px;
    border-radius: 2px;
    transition: all 0.2s;
    text-shadow: 0 0 6px var(--level-color, var(--green));
}

.game-btn:hover {
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 16px var(--level-color, var(--green));
}

.game-btn-secondary {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 10px 20px;
    cursor: pointer;
    letter-spacing: 1px;
    border-radius: 2px;
    transition: all 0.2s;
}

.game-btn-secondary:hover {
    border-color: var(--text-dim);
    color: var(--text);
}

.continue-btn {
    margin-top: 8px;
}

/* ═══════════════════════════════════════════════
   REVEAL VIEW (Insight Unlocked)
   ═══════════════════════════════════════════════ */
.reveal-view {
    text-align: left;
}

.reveal-key {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--amber);
    text-shadow: 0 0 8px rgba(255, 176, 0, 0.4);
    margin-bottom: 16px;
}

.reveal-content {
    background: var(--bg-elevated);
    border: 1px solid var(--green-dim);
    border-left: 4px solid var(--green);
    padding: 24px;
    margin: 16px 0 24px 0;
    line-height: 1.8;
    font-size: 15px;
}

.reveal-content p {
    margin-bottom: 12px;
}

.reveal-content p:last-child {
    margin-bottom: 0;
}

/* ═══════════════════════════════════════════════
   LEVEL COMPLETE
   ═══════════════════════════════════════════════ */
.level-complete {
    max-width: 700px;
    margin: 0 auto;
    padding: 60px 20px;
    text-align: center;
}

.complete-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.complete-title {
    font-family: var(--font-mono);
    font-size: 14px;
    letter-spacing: 4px;
    color: var(--level-color, var(--green));
    text-shadow: 0 0 10px var(--level-color, var(--green));
    margin-bottom: 8px;
}

.complete-level-name {
    font-family: var(--font-mono);
    font-size: 24px;
    color: var(--text);
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.complete-text {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto 32px;
    text-align: left;
    background: var(--bg-elevated);
    padding: 24px;
    border: 1px solid var(--border);
    border-left: 3px solid var(--level-color, var(--green));
}

.complete-text p {
    margin-bottom: 12px;
}

.complete-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.complete-final {
    margin-top: 40px;
    padding: 32px;
    border: 1px solid var(--green-dim);
    background: var(--bg-elevated);
}

.complete-final h3 {
    font-family: var(--font-mono);
    font-size: 18px;
    color: var(--green);
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.complete-final p {
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 8px;
}

/* Completion Banner on Map */
.completion-banner {
    text-align: center;
    padding: 32px;
    margin: 24px 0;
    background: var(--bg-elevated);
    border: 1px solid var(--green-dim);
    border-radius: 4px;
}

.completion-icon {
    font-size: 48px;
    margin-bottom: 8px;
}

.completion-text {
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 14px;
    letter-spacing: 1px;
    margin-bottom: 8px;
    line-height: 1.6;
}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.game-footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

.footer-attribution {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-top: 12px;
    line-height: 1.8;
}

.footer-attribution a {
    color: var(--amber-dim);
}

.footer-attribution a:hover {
    color: var(--amber);
}

/* ═══════════════════════════════════════════════
   SORT CHALLENGE
   ═══════════════════════════════════════════════ */
.sort-instructions {
    color: var(--amber-dim);
    font-family: var(--mono);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    text-align: center;
}

.sort-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 12px 0;
}

.sort-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: grab;
    transition: all 0.2s ease;
    user-select: none;
}

.sort-item:hover {
    border-color: var(--level-color, var(--green));
    background: rgba(0, 255, 65, 0.05);
}

.sort-item.dragging {
    opacity: 0.4;
    transform: scale(0.98);
}

.sort-item.selected {
    border-color: var(--level-color, var(--green));
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 8px rgba(0, 255, 65, 0.3);
}

.sort-item.locked {
    cursor: default;
    opacity: 0.9;
}

.sort-handle {
    color: var(--green-dim);
    font-size: 18px;
    font-weight: bold;
    min-width: 24px;
    text-align: center;
}

.sort-text {
    flex: 1;
    color: var(--text);
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.5;
}

.sort-rank {
    color: var(--amber-dim);
    font-family: var(--mono);
    font-size: 13px;
    min-width: 20px;
    text-align: right;
}

.sort-rank.correct {
    color: var(--green);
    font-weight: bold;
}

.sort-rank.wrong {
    color: var(--amber);
}

.sort-submit-btn {
    display: block;
    margin: 16px auto 0;
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 600px) {
    .game-title { font-size: 20px; letter-spacing: 4px; }
    .game-logo { font-size: 36px; }
    .level-node { padding: 16px; gap: 12px; }
    .level-icon { font-size: 24px; min-width: 30px; }
    .level-title { font-size: 14px; }
    .level-subtitle { font-size: 12px; }
    .challenge-title { font-size: 18px; }
    .challenge-prompt { padding: 16px; font-size: 14px; }
    .option-btn { padding: 14px 16px; font-size: 13px; }
    .game-btn { font-size: 14px; padding: 12px 24px; }
    .reveal-content { padding: 16px; font-size: 14px; }
    .complete-text { padding: 16px; font-size: 14px; }
}