:root {
    /* Colors */
    --bg-dark: #0a0a12;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent-primary: #00f2ff; /* Cyan */
    --accent-secondary: #bd00ff; /* Purple */
    --accent-tertiary: #ff0055; /* Pink */
    --success: #00ff9d;
    --warning: #ffb700;
    --danger: #ff4d4d;

    /* Effects */
    --glass-blur: 12px;
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glow-primary: 0 0 10px rgba(0, 242, 255, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(189, 0, 255, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(0, 242, 255, 0.1) 0%, transparent 20%);
}

/* --- Particles Background (Simulated) --- */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background: 
        radial-gradient(1px 1px at 20px 30px, #fff, transparent),
        radial-gradient(1px 1px at 40px 70px, #fff, transparent),
        radial-gradient(1px 1px at 50px 160px, #fff, transparent),
        radial-gradient(1px 1px at 90px 40px, #fff, transparent),
        radial-gradient(1px 1px at 130px 80px, #fff, transparent);
    background-size: 200px 200px;
    opacity: 0.3;
    animation: particleMove 20s linear infinite;
}

@keyframes particleMove {
    from { background-position: 0 0; }
    to { background-position: 0 200px; }
}

/* --- Typography --- */
h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border-color); padding-bottom: var(--spacing-xs); margin-bottom: var(--spacing-md); }
h3 { font-size: 1.1rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.8rem; }

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Layout --- */
.main-header {
    padding: var(--spacing-md) var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(var(--glass-blur));
    border-bottom: var(--glass-border);
    background: rgba(10, 10, 18, 0.8);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon { font-size: 2rem; }

.header-meta {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status {
    color: var(--success);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

/* --- Components --- */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: var(--glass-border);
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-card);
    transition: var(--transition-normal);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Buttons */
button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    outline: none;
    transition: var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(0, 242, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 255, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    border: 1px solid transparent;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Model/Preset Buttons */
.model-buttons, .preset-buttons, .mode-buttons, .battery-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.model-btn, .preset-btn, .mode-btn, .battery-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 1rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 100px;
    flex: 1;
}

.model-btn:hover, .preset-btn:hover, .mode-btn:hover, .battery-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.model-btn.selected, .preset-btn.selected, .mode-btn.selected, .battery-btn.selected {
    background: rgba(0, 242, 255, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    box-shadow: 0 0 10px rgba(0, 242, 255, 0.1);
}

.model-meta {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-top: 4px;
}

/* Sliders & Dual Slider */
.dual-slider {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.slider-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.slider-group label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.slider-value {
    text-align: right;
    font-family: 'Fira Code', monospace;
    color: var(--accent-primary);
    font-weight: 600;
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    outline: none;
    margin-top: 5px;
}

/* Architecture Display */
.architecture-display {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: var(--spacing-sm);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.arch-icon { font-size: 1.5rem; }
.arch-name { font-weight: 600; flex: 1; }
.arch-workers { 
    font-size: 0.8rem; 
    color: var(--text-secondary); 
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 8px;
    border-radius: 12px;
}

/* Paths Display */
.paths-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.paths-label { font-size: 0.9rem; color: var(--text-secondary); }
.paths-value { font-family: 'Fira Code', monospace; font-size: 1.2rem; font-weight: 700; }

/* Pruning Labels */
.pruning-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-primary);
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Inputs */
textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-sm);
    color: var(--text-primary);
    font-family: inherit;
    resize: vertical;
    min-height: 120px;
    margin-top: var(--spacing-sm);
}

textarea:focus {
    border-color: var(--accent-primary);
    outline: none;
}

/* Toggles */
.toggle-grid {
    display: grid;
    gap: var(--spacing-sm);
}

.toggle-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-sm);
    border-radius: 8px;
}

.toggle-label {
    flex: 1;
    font-size: 0.9rem;
}

.weight-slider {
    width: 100px !important;
}

/* Estimates Grid */
.estimate-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.estimate-card {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-sm);
    border-radius: 8px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.estimate-icon { font-size: 1.5rem; margin-bottom: 0.2rem; }
.estimate-value { font-size: 1.2rem; font-weight: 700; color: var(--accent-primary); }
.estimate-label { font-size: 0.8rem; color: var(--text-secondary); }

/* Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.comparison-table th {
    text-align: left;
    color: var(--text-secondary);
    padding: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
}

.comparison-table td {
    padding: var(--spacing-xs);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-table tr.selected td {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Results Panel */
.results-header {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-md);
    border-radius: 12px;
}

.result-stat {
    display: flex;
    flex-direction: column;
}

.stat-label { font-size: 0.8rem; color: var(--text-secondary); }
.stat-value { font-size: 1.1rem; font-weight: 600; }

.winner-card {
    background: linear-gradient(180deg, rgba(0, 242, 255, 0.05) 0%, rgba(0, 0, 0, 0) 100%);
    border: 1px solid rgba(0, 242, 255, 0.2);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-bottom: var(--spacing-lg);
}

.winner-response {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    border-left: 3px solid var(--accent-primary);
}

.score-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: 0.5rem;
}

.score-label { width: 100px; font-size: 0.9rem; color: var(--text-secondary); }
.score-fill {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.score-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--width, 0%);
    background: var(--accent-secondary);
    transition: width 1s ease;
}

.score-fill.final::after { background: var(--success); }

/* Progress Panel */
.progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.3;
    transition: opacity 0.3s;
}

.progress-step.active { opacity: 1; color: var(--accent-primary); }

.progress-bar-container {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-bar {
    height: 100%;
    background: var(--accent-primary);
    width: 0%;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--accent-primary);
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.modal-content {
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

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

.modal-close {
    background: none;
    font-size: 2rem;
    color: var(--text-secondary);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-md);
    border-radius: 8px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
}

.modal-footer {
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    animation: reveal 0.6s ease forwards;
}

@keyframes reveal {
    to { opacity: 1; transform: translateY(0); }
}

/* Staggered delays */
.scroll-reveal[data-delay="100"] { animation-delay: 0.1s; }
.scroll-reveal[data-delay="200"] { animation-delay: 0.2s; }
.scroll-reveal[data-delay="300"] { animation-delay: 0.3s; }
.scroll-reveal[data-delay="400"] { animation-delay: 0.4s; }

/* Goldilocks Panel */
.goldilocks-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.goldilocks-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.goldilocks-title {
    font-size: 1.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffd700, #ffaa00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.icon-btn:hover {
    color: var(--text-primary);
    transform: rotate(180deg);
}

.lambda-display {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.lambda-value {
    font-family: 'Fira Code', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.lambda-zone {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.2rem;
}

.lambda-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Zones */
.zone-OPTIMAL { color: var(--success); text-shadow: 0 0 10px rgba(0, 255, 157, 0.3); }
.zone-CHAOS { color: var(--danger); text-shadow: 0 0 10px rgba(255, 77, 77, 0.3); }
.zone-STAGNATION { color: var(--warning); text-shadow: 0 0 10px rgba(255, 183, 0, 0.3); }

.factors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-sm);
}

.factor-card {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-sm);
    border-radius: 8px;
    text-align: center;
}

.factor-name { font-size: 0.7rem; color: var(--text-secondary); display: block; }
.factor-value { font-family: 'Fira Code', monospace; font-weight: 600; color: var(--text-primary); }

.mera-visualizer {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: var(--spacing-sm);
    display: flex;
    justify-content: center;
    align-items: center;
}

.recommendations-section h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.recommendation-item {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-sm);
    border-radius: 6px;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    border-left: 3px solid var(--accent-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        padding: var(--spacing-sm);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}