/* AENIGMA: The Evolution of Secrets - Stylesheet */

/* CSS Variables */
:root {
    --bg-primary: #0B0F19;
    --bg-secondary: #151B2D;
    --bg-tertiary: #1E2745;
    --bg-panel: #0D1117;
    
    --text-primary: #E2E8F0;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    --accent-green: #00FF41;
    --accent-blue: #3B82F6;
    --accent-purple: #8B5CF6;
    --accent-cyan: #06B6D4;
    --accent-red: #DC2626;
    --accent-orange: #F59E0B;
    --accent-gold: #FBBF24;
    
    --border-color: #2D3748;
    --border-light: #4A5568;
    
    --font-mono: 'Fira Code', 'Courier New', monospace;
    --font-display: 'Share Tech Mono', monospace;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --shadow-glow-green: 0 0 10px rgba(0, 255, 65, 0.3);
    --shadow-glow-blue: 0 0 10px rgba(59, 130, 246, 0.3);
    --shadow-panel: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Loading Screen */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-text {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-green);
    text-shadow: var(--shadow-glow-green);
    letter-spacing: 0.5rem;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { text-shadow: var(--shadow-glow-green); }
    50% { text-shadow: 0 0 20px rgba(0, 255, 65, 0.6); }
}

.loader-subtitle {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.875rem;
    letter-spacing: 0.2rem;
}

.progress-bar {
    width: 300px;
    height: 4px;
    background: var(--bg-secondary);
    border-radius: 2px;
    margin: 2rem auto 0;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
    width: 0%;
    transition: width 0.3s ease;
}

.loader-status {
    color: var(--text-muted);
    margin-top: 1rem;
    font-size: 0.75rem;
}

/* Main Container */
#main-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#main-container.hidden {
    display: none;
}

/* Header */
#game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-symbol {
    font-size: 2rem;
    color: var(--accent-green);
    text-shadow: var(--shadow-glow-green);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.2rem;
    color: var(--text-primary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

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

#status-text {
    color: var(--accent-green);
    font-size: 0.875rem;
}

.timer-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
}

.timer-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

#game-timer {
    color: var(--accent-cyan);
    font-weight: 600;
    font-size: 1rem;
}

/* Game Layout */
#game-layout {
    display: flex;
    flex: 1;
    min-height: calc(100vh - 70px);
}

/* Sidebar */
#sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    overflow-y: auto;
}

.sidebar-section {
    flex-shrink: 0;
}

.section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

/* Level Navigation */
.level-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.level-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.level-item:hover:not(.locked) {
    background: var(--bg-panel);
    border-color: var(--accent-blue);
    transform: translateX(5px);
}

.level-item.active {
    background: var(--bg-panel);
    border-color: var(--accent-green);
    box-shadow: var(--shadow-glow-green);
}

.level-item.completed {
    opacity: 0.7;
}

.level-item.locked {
    opacity: 0.4;
    cursor: not-allowed;
}

.level-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-blue);
    min-width: 2rem;
}

.level-name {
    flex: 1;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.level-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.level-status.locked {
    background: var(--text-muted);
}

.level-status.unlocked {
    background: var(--accent-orange);
}

.level-status.completed {
    background: var(--accent-green);
}

/* Toolbox */
.toolbox {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.75rem 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-mono);
}

.tool-btn:hover {
    background: var(--bg-panel);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.tool-icon {
    font-size: 1.25rem;
    color: var(--accent-cyan);
}

.tool-name {
    font-size: 0.625rem;
    color: var(--text-secondary);
    letter-spacing: 0.1rem;
}

/* Hints Section */
.hint-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.hint-text.unlocked {
    color: var(--accent-gold);
    padding: 0.75rem;
    background: rgba(251, 191, 36, 0.1);
    border-radius: 8px;
    border-left: 3px solid var(--accent-gold);
}

/* Main Content Area */
#game-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    overflow-y: auto;
}

.panel {
    padding: 2rem;
    min-height: 100%;
}

.panel.hidden {
    display: none;
}

/* Intro Panel */
#intro-panel {
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.intro-content {
    max-width: 700px;
    text-align: center;
}

.intro-title {
    font-family: var(--font-display);
    font-size: 5rem;
    font-weight: 700;
    color: var(--accent-green);
    text-shadow: var(--shadow-glow-green);
    letter-spacing: 0.3rem;
    position: relative;
}

.intro-title.glitch {
    animation: glitch-effect 3s infinite;
}

@keyframes glitch-effect {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-2px, 1px); }
    94% { transform: translate(2px, -1px); }
    96% { transform: translate(-1px, 2px); }
    98% { transform: translate(1px, -2px); }
}

.intro-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-weight: 300;
    letter-spacing: 0.5rem;
}

.intro-description {
    margin-top: 2rem;
    text-align: left;
}

.intro-description p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.warning-text {
    color: var(--accent-orange) !important;
    padding: 1rem;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 8px;
    border-left: 3px solid var(--accent-orange);
}

/* Action Buttons */
.action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.1rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.primary-btn {
    background: var(--accent-green);
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow-green);
}

.primary-btn:hover {
    background: #00CC33;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.5);
}

.action-btn:hover {
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 0.875rem;
}

/* Level Container */
#level-container {
    padding: 2rem;
}

#level-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

#level-title {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--text-primary);
}

.difficulty-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
}

.difficulty-badge.easy {
    background: rgba(0, 255, 65, 0.2);
    color: var(--accent-green);
}

.difficulty-badge.medium {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
}

.difficulty-badge.hard {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-orange);
}

.difficulty-badge.expert {
    background: rgba(139, 92, 246, 0.2);
    color: var(--accent-purple);
}

.difficulty-badge.master {
    background: rgba(220, 38, 38, 0.2);
    color: var(--accent-red);
}

#level-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.content-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.panel-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 0.2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

#artifact-container {
    min-height: 300px;
    background: var(--bg-secondary);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

#analysis-tools {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Level Input Section */
#level-input-section {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.input-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.input-prompt {
    color: var(--accent-green);
    font-weight: 600;
}

#level-answer {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1rem;
}

#level-answer::placeholder {
    color: var(--text-muted);
}

.feedback {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
}

.feedback.success {
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.feedback.error {
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
}

.feedback.hint {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--accent-orange);
    color: var(--accent-orange);
}

.feedback.hidden {
    display: none;
}

/* Terminal Panel */
#terminal-panel {
    background: var(--bg-primary);
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px 8px 0 0;
    border: 1px solid var(--border-color);
    border-bottom: none;
}

.terminal-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.terminal-controls {
    display: flex;
    gap: 0.5rem;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background: #FF5F56; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green { background: #27CA40; }

.terminal-content {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 1rem;
    height: 400px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.terminal-line {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

.terminal-line.system {
    color: var(--accent-green);
}

.terminal-line.error {
    color: var(--accent-red);
}

.terminal-line.success {
    color: var(--accent-green);
}

.terminal-input-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.terminal-prompt {
    color: var(--accent-green);
    font-weight: 600;
}

#terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* Modal */
#modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

#modal-overlay.hidden {
    display: none;
}

#modal-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-panel);
}

#modal-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

#modal-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
}

#modal-message {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

#modal-rewards {
    margin-bottom: 1.5rem;
    text-align: left;
}

#modal-rewards h4 {
    color: var(--accent-gold);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

#rewards-list {
    list-style: none;
}

#rewards-list li {
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* Tool Panels */
.tool-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 500px;
    max-width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 500;
    box-shadow: var(--shadow-panel);
}

.tool-panel.hidden {
    display: none;
}

.tool-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border-radius: 12px 12px 0 0;
    border-bottom: 1px solid var(--border-color);
}

.tool-panel-header h3 {
    font-size: 0.875rem;
    color: var(--accent-cyan);
    letter-spacing: 0.1rem;
}

.close-tool {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.close-tool:hover {
    color: var(--accent-red);
}

.tool-panel-content {
    padding: 1.5rem;
}

/* Hex Tool */
#hex-input {
    width: 100%;
    height: 150px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    resize: vertical;
}

.hex-output {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-green);
    word-break: break-all;
    max-height: 200px;
    overflow-y: auto;
}

/* Binary Tool */
.conversion-result {
    margin-top: 1rem;
}

.conversion-result label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.result-box {
    padding: 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-cyan);
    word-break: break-all;
    min-height: 2.5rem;
}

/* Caesar Tool */
.shift-control {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.shift-control label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

#caesar-shift {
    width: 60px;
    padding: 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    text-align: center;
}

#caesar-slider {
    flex: 1;
}

#caesar-input {
    width: 100%;
    height: 100px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    resize: vertical;
}

.tool-action-btn {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background: var(--accent-blue);
    border: none;
    border-radius: 4px;
    color: white;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.tool-action-btn:hover {
    background: #2563EB;
}

/* Frequency Tool */
.chart-container {
    margin-top: 1rem;
    height: 200px;
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    align-items: flex-end;
    gap: 2px;
}

.frequency-bar {
    flex: 1;
    background: var(--accent-blue);
    border-radius: 2px 2px 0 0;
    min-width: 10px;
    transition: height 0.3s ease;
}

.stats-container {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* RSA Tool */
.rsa-inputs {
    display: grid;
    gap: 1rem;
}

.rsa-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.rsa-field label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.rsa-field input {
    padding: 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.results-container {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
}

.rsa-result-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.rsa-result-item:last-child {
    border-bottom: none;
}

.rsa-result-item label {
    color: var(--text-muted);
}

.rsa-result-item span {
    color: var(--accent-green);
    font-family: var(--font-mono);
}

.results-container.hidden {
    display: none;
}

/* Runes Tool */
.runes-reference {
    margin-bottom: 1rem;
}

.runes-reference h4 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.runes-table {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.5rem;
}

.rune-pair {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
}

.rune {
    font-size: 1.5rem;
    color: var(--accent-gold);
}

.rune-value {
    font-size: 0.625rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

#runes-input {
    width: 100%;
    height: 100px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-primary);
    font-size: 1.5rem;
    resize: vertical;
}

/* Level Specific Styles */

/* Level 1: Wax Tablets */
.wax-tablet-container {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wax-surface {
    position: relative;
    width: 300px;
    height: 400px;
    background: linear-gradient(145deg, #d4a574 0%, #c49a6c 50%, #a67c52 100%);
    border-radius: 8px;
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.3),
        inset 0 2px 10px rgba(255, 255, 255, 0.1);
    cursor: crosshair;
    overflow: hidden;
}

.wax-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #e8c9a0 0%, #d4b07a 50%, #c49a6c 100%);
    transition: opacity 0.1s ease;
}

.hidden-message {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1.25rem;
    text-align: center;
    line-height: 1.6;
}

/* Level 2: Acrostics */
.poem-container {
    font-family: 'Georgia', serif;
    line-height: 2;
    text-align: center;
    padding: 2rem;
    background: #f5f5f0;
    color: #333;
    border-radius: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.poem-line {
    margin-bottom: 0.5rem;
}

.poem-line:first-letter {
    font-size: 1.5em;
    font-weight: bold;
}

.acrostic-highlight {
    color: var(--accent-green);
    font-weight: bold;
    font-family: var(--font-mono);
}

.caesar-wheel {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 1rem auto;
}

.wheel-ring {
    position: absolute;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wheel-outer {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
}

.wheel-inner {
    width: 60%;
    height: 60%;
    background: var(--bg-secondary);
}

.wheel-pointer {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 15px solid var(--accent-green);
}

/* Level 3: LSB Steganography */
.lsb-container {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.lsb-image-panel {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
}

.lsb-canvas {
    width: 100%;
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.lsb-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 200px;
}

.channel-selector {
    display: flex;
    gap: 0.5rem;
}

.channel-btn {
    flex: 1;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.channel-btn.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

.channel-btn:hover:not(.active) {
    border-color: var(--accent-blue);
}

.bit-selector {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.bit-slider {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    -webkit-appearance: none;
    appearance: none;
}

.bit-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--accent-blue);
    border-radius: 50%;
    cursor: pointer;
}

.lsb-extracted {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent-green);
    min-height: 60px;
}

/* Level 4: Cardano Grille */
.cardano-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.grille-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
}

.letter-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(6, 1fr);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
}

.grid-cell {
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.cardan-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 8px;
    pointer-events: none;
    transition: transform var(--transition-normal);
}

.hole {
    position: absolute;
    background: rgba(59, 130, 246, 0.3);
    border: 2px solid var(--accent-blue);
    border-radius: 4px;
}

.rotation-controls {
    display: flex;
    gap: 1rem;
}

.rotation-btn {
    padding: 0.75rem 1.5rem;
    background: var(--accent-blue);
    border: none;
    border-radius: 8px;
    color: white;
    font-family: var(--font-mono);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.rotation-btn:hover {
    background: #2563EB;
}

.extracted-message {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-green);
    letter-spacing: 0.2rem;
}

/* Level 5: DCT Analysis */
.dct-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.dct-visualizer {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.dct-image {
    max-width: 300px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.dct-spectrum {
    width: 300px;
    height: 300px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    overflow: hidden;
}

.dct-block {
    background: var(--accent-blue);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.dct-block:hover {
    opacity: 1;
    transform: scale(1.1);
}

.coefficient-info {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.coefficient-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

/* Level 6: RSA */
.rsa-puzzle-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.rsa-clue {
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border-left: 4px solid var(--accent-purple);
}

.rsa-clue h4 {
    color: var(--accent-purple);
    margin-bottom: 1rem;
}

.runic-text {
    font-size: 2rem;
    color: var(--accent-gold);
    margin: 1rem 0;
    letter-spacing: 0.5rem;
}

.rsa-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.rsa-value-item {
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
}

.rsa-value-item label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.rsa-value-item .value {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-green);
    word-break: break-all;
}

/* Level 7: Final Enigma */
.enigma-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.enigma-layers {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.enigma-layer {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    text-align: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
}

.enigma-layer:hover {
    border-color: var(--accent-blue);
}

.enigma-layer.completed {
    border-color: var(--accent-green);
    opacity: 0.6;
}

.enigma-layer.active {
    border-color: var(--accent-purple);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.3);
}

.layer-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.layer-name {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.layer-status {
    font-size: 0.625rem;
    color: var(--accent-green);
    margin-top: 0.5rem;
}

.enigma-final-input {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.final-input-group {
    flex: 1;
    min-width: 200px;
}

.final-input-group label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.final-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* Map Container */
.map-container {
    width: 100%;
    height: 300px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 1024px) {
    #game-layout {
        flex-direction: column;
    }
    
    #sidebar {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .sidebar-section {
        flex: 1;
        min-width: 200px;
    }
    
    #level-content {
        grid-template-columns: 1fr;
    }
    
    .enigma-layers {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .intro-title {
        font-size: 3rem;
    }
    
    #game-header {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .enigma-layers {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .runes-table {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .toolbox {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .intro-title {
        font-size: 2rem;
        letter-spacing: 0.2rem;
    }
    
    .enigma-layers {
        grid-template-columns: 1fr;
    }
    
    .runes-table {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.slide-in {
    animation: slideIn 0.3s ease forwards;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }