/* Interactive Simulators - Shared Styles */

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

:root {
    --primary: #8B4513;
    --primary-dark: #654321;
    --accent: #4169E1;
    --success: #228B22;
    --warning: #DAA520;
    --error: #DC143C;
    --bg: #f9f7f4;
    --text: #2c3e50;
    --text-light: #666;
    --border: #ddd;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* Soft Sepia Theme - Easy on Eyes */
:root[data-theme="soft-sepia"] {
    --primary: #6B5B47;
    --primary-dark: #4B3B27;
    --accent: #5D7399;
    --success: #4A7C59;
    --warning: #B8860B;
    --error: #A54A4A;
    --bg: #F5F1E8;
    --text: #3A3A3A;
    --text-light: #7A7A7A;
    --border: #C8B8A8;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* Classic Sepia Theme - True Sepia Tone */
:root[data-theme="sepia"] {
    --primary: #7B5E38;
    --primary-dark: #5B3E18;
    --accent: #6B5D4D;
    --success: #5A7C59;
    --warning: #B8860B;
    --error: #A54A4A;
    --bg: #F4ECD8;
    --text: #4A3A2A;
    --text-light: #8A7A6A;
    --border: #B8A898;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* Tokyo Night Dark Theme - Deep Blue/Purple Dark Theme */
:root[data-theme="dark"] {
    --primary: #4169E1;
    --primary-dark: #2E5DD6;
    --accent: #BB9AF7;
    --success: #4FD18B;
    --warning: #F7B868;
    --error: #F7768E;
    --bg: #1A1B26;
    --text: #C0CAF5;
    --text-light: #7AA2F7;
    --border: #2E3440;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4);
}

body.simulator {
    font-family: Georgia, serif;
    background: var(--bg);
    color: var(--text);
}

.simulator-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 40px;
    text-align: center;
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
}

.simulator-header h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.simulator-header p {
    font-size: 16px;
    opacity: 0.9;
}

.simulator-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px 40px;
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 30px;
}

/* ===== CONTROLS ===== */

.simulator-left {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-section {
    background: var(--bg);
    padding: 25px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent);
    border: 1px solid var(--border);
}

.control-section h3 {
    font-size: 16px;
    color: var(--primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.control-section h4 {
    font-size: 13px;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 10px;
    margin-top: 15px;
}

.control-group {
    margin-bottom: 20px;
}

.control-group label {
    display: block;
    font-size: 13px;
    font-weight: bold;
    color: var(--text);
    margin-bottom: 8px;
    font-family: system-ui, -apple-system, sans-serif;
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
    background: var(--primary-dark);
    box-shadow: var(--shadow-lg);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
}

.slider::-moz-range-thumb:hover {
    background: var(--primary-dark);
    box-shadow: var(--shadow-lg);
}

.control-group span {
    display: block;
    text-align: right;
    font-size: 12px;
    color: var(--accent);
    font-weight: bold;
    margin-top: 5px;
}

.control-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

button {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: 6px;
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #3050c0;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--border);
    color: var(--text);
}

.btn-secondary:hover:not(:disabled) {
    background: #ccc;
    transform: translateY(-1px);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.preset-buttons {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border);
}

.preset-btn {
    display: block;
    width: 100%;
    margin-bottom: 8px;
    background: var(--bg);
    border: 1px solid var(--accent);
    color: var(--accent);
}

.preset-btn:hover {
    background: rgba(65, 105, 225, 0.1);
}

/* ===== STATISTICS ===== */

.stat {
    margin-bottom: 15px;
}

.stat label {
    display: block;
    font-size: 12px;
    font-weight: bold;
    color: var(--text);
    margin-bottom: 6px;
    font-family: system-ui, -apple-system, sans-serif;
}

.stat-bar {
    width: 100%;
    height: 20px;
    background: var(--border);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

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

.stat span {
    display: block;
    text-align: right;
    font-size: 12px;
    color: var(--accent);
    font-weight: bold;
    margin-top: 4px;
    font-family: system-ui, -apple-system, sans-serif;
}

.time-value {
    font-size: 16px;
    color: var(--primary);
}

/* ===== VISUALIZATION ===== */

.simulator-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.canvas-container {
    background: var(--bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    border: 1px solid var(--border);
    justify-content: center;
    align-items: center;
}

canvas {
    max-width: 100%;
    display: block;
}

/* ===== TRACE LOG ===== */

.trace-panel {
    background: var(--bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--warning);
    border: 1px solid var(--border);
}

.trace-panel h4 {
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 12px;
    font-family: system-ui, -apple-system, sans-serif;
}

.trace-log {
    height: 200px;
    overflow-y: auto;
    background: var(--bg);
    padding: 12px;
    border-radius: 4px;
    font-size: 12px;
    font-family: 'Courier New', monospace;
    line-height: 1.5;
    border: 1px solid var(--border);
}

.trace-item {
    margin-bottom: 6px;
    padding: 4px 6px;
    border-radius: 2px;
}

.trace-info {
    color: var(--text-light);
}

.trace-info::before {
    content: 'ℹ️  ';
}

.trace-success {
    color: var(--success);
    background: rgba(34, 139, 34, 0.1);
}

.trace-success::before {
    content: '✓ ';
    font-weight: bold;
}

.trace-warning {
    color: var(--warning);
    background: rgba(218, 165, 32, 0.1);
}

.trace-warning::before {
    content: '⚠ ';
}

.trace-error {
    color: var(--error);
    background: rgba(220, 20, 60, 0.1);
}

.trace-error::before {
    content: '✕ ';
    font-weight: bold;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 1024px) {
    .simulator-container {
        grid-template-columns: 1fr;
    }

    .canvas-container {
        max-height: 400px;
    }
}

@media (max-width: 768px) {
    .simulator-header {
        padding: 30px 20px;
    }

    .simulator-header h1 {
        font-size: 24px;
    }

    .control-buttons {
        flex-direction: column;
    }

    button {
        width: 100%;
    }

    .trace-log {
        height: 150px;
    }
}

/* ===== ANIMATIONS ===== */

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.animating {
    animation: pulse 0.6s ease-in-out;
}