:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-dark: #0a0e1a;
    --bg-darker: #050711;
    --bg-card: rgba(30, 41, 59, 0.4);
    --bg-card-hover: rgba(51, 65, 85, 0.6);
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: rgba(99, 102, 241, 0.2);
    --glass-bg: rgba(30, 41, 59, 0.3);
    --glass-border: rgba(148, 163, 184, 0.1);
    --gradient-1: linear-gradient(135deg, #0f9d89 0%, #0a7a6d 100%);
    --gradient-2: linear-gradient(135deg, #d95b43 0%, #b8432f 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-text: linear-gradient(135deg, #0f9d89 0%, #0a7a6d 50%, #d3a53e 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    --glow: 0 0 20px rgba(99, 102, 241, 0.4);
    --glow-intense: 0 0 40px rgba(99, 102, 241, 0.6);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Inter', sans-serif;
    background: var(--bg-darker);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Background Effects */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.bg-gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #6366f1, transparent);
    top: -250px;
    right: -250px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #8b5cf6, transparent);
    bottom: -200px;
    left: -200px;
    animation-delay: 5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #ec4899, transparent);
    top: 50%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, -50px) scale(1.1); }
    50% { transform: translate(-30px, 30px) scale(0.9); }
    75% { transform: translate(30px, 50px) scale(1.05); }
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 60px 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-xl), var(--glow);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.logo-container {
    margin-bottom: 30px;
}

.quantum-logo {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto;
}

.logo-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid;
    opacity: 0.6;
}

.ring-1 {
    width: 120px;
    height: 120px;
    border-color: #6366f1;
    animation: rotate 10s linear infinite;
}

.ring-2 {
    width: 90px;
    height: 90px;
    top: 15px;
    left: 15px;
    border-color: #8b5cf6;
    animation: rotate 15s linear infinite reverse;
}

.ring-3 {
    width: 60px;
    height: 60px;
    top: 30px;
    left: 30px;
    border-color: #ec4899;
    animation: rotate 20s linear infinite;
}

.logo-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.8)); }
    50% { filter: drop-shadow(0 0 20px rgba(139, 92, 246, 1)); }
}

.gradient-text {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 20px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--success-color);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    position: relative;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.panel {
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.panel:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), var(--glow);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--glass-border);
}

.panel-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-gradient {
    font-size: 1.8rem;
    display: inline-block;
    filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.6));
}

.panel-badge {
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary-light);
}

.live-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--danger-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.live-dot {
    width: 6px;
    height: 6px;
    background: var(--danger-color);
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
    box-shadow: 0 0 10px var(--danger-color);
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    background: rgba(15, 23, 42, 0.6);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--glow);
    background: rgba(15, 23, 42, 0.8);
}

.form-control:hover {
    border-color: var(--primary-light);
}

.info-text {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Buttons */
.button-group {
    display: flex;
    gap: 12px;
    margin-top: 25px;
}

.btn {
    flex: 1;
    padding: 16px 28px;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
    color: white;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.6);
}

.refresh-btn {
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    color: var(--primary-color);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.refresh-btn:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: scale(1.05);
}

.btn-icon {
    font-size: 1.2rem;
}

/* Status Panel */
.status-message {
    text-align: center;
    padding: 30px;
}

.status-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.status-icon.spinning {
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.status-details {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.status-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-dark);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.status-item .label {
    font-weight: 500;
    color: var(--text-secondary);
}

.status-item .value {
    font-weight: 600;
    color: var(--text-primary);
}

.status-item.metric-large {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-left: 3px solid var(--secondary-color);
    padding: 20px;
}

.accuracy-display {
    position: relative;
    width: 100%;
    height: 60px;
    background: var(--bg-dark);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 10px;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
}

.accuracy-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #10b981, #34d399);
    transition: width 0.5s ease;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

.accuracy-percent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    z-index: 1;
}

/* Progress Bar */
.progress-bar-container {
    margin-top: 20px;
}

.progress-bar {
    height: 8px;
    background: var(--bg-dark);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-1);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    margin-top: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Quantum Circuit Visualization */
.circuit-panel {
    grid-column: 1 / -1;
}

.canvas-container {
    position: relative;
    background: rgba(10, 14, 26, 0.6);
    border-radius: 16px;
    padding: 20px;
    border: 2px solid var(--border-color);
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
}

#circuit-canvas {
    width: 100%;
    height: 300px;
    border-radius: 12px;
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.2);
}

.circuit-stats {
    display: flex;
    gap: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
}

.stat-label {
    color: var(--text-muted);
    font-weight: 500;
}

.stat-item span:last-child {
    color: var(--primary-light);
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}

/* Particle Effects */
@keyframes particle-float {
    0% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) translateX(50px) rotate(360deg);
        opacity: 0;
    }
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: particle-float 2s ease-out forwards;
}

/* Charts */
/* Charts */
.charts-panel {
    grid-column: 1 / -1;
}

.metrics-legend {
    display: flex;
    gap: 16px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    box-shadow: 0 0 8px currentColor;
}

.chart-container {
    position: relative;
    height: 320px;
    margin-bottom: 30px;
    padding: 25px;
    background: rgba(10, 14, 26, 0.4);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.chart-container:last-child {
    margin-bottom: 0;
}

/* Results List */
.results-panel {
    grid-column: 1 / -1;
}

.results-list {
    display: grid;
    gap: 12px;
}

.result-item {
    background: var(--bg-dark);
    padding: 16px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    cursor: pointer;
    transition: all 0.2s;
}

.result-item:hover {
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.result-title {
    font-weight: 600;
    font-size: 1.1rem;
}

.result-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.result-badge.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.result-meta {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.result-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
    border-top: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-brand {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.version {
    display: inline-block;
    padding: 2px 8px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    font-size: 0.75rem;
    margin-left: 8px;
}

.footer-tech {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .header h1 {
        font-size: 1.8rem;
    }

    .button-group {
        flex-direction: column;
    }

    .chart-container {
        height: 250px;
    }
}

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

.panel {
    animation: fadeIn 0.3s ease;
}

/* Error and Success Messages */
.error-message {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    padding: 12px;
    margin-top: 12px;
    color: var(--danger-color);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-message::before {
    content: '⚠️';
}

.success-message {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--success-color);
    border-radius: 8px;
    padding: 12px;
    margin-top: 12px;
    color: var(--success-color);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.success-message::before {
    content: '✅';
}

/* Input validation states */
.form-control.invalid {
    border-color: var(--danger-color) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-control:focus:invalid {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

/* Secondary button styles */
.btn-secondary {
    background: linear-gradient(135deg, #475569 0%, #334155 100%);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(71, 85, 105, 0.4);
}

.btn-secondary:disabled {
    background: linear-gradient(135deg, #334155 0%, #1e293b 100%);
    opacity: 0.4;
}

/* Advanced settings */
details.advanced-settings {
    margin-top: 12px;
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 10px;
    padding: 10px 12px;
}
details.advanced-settings > summary {
    cursor: pointer;
    color: var(--text-primary);
    font-weight: 600;
}
details.advanced-settings[open] {
    backdrop-filter: blur(8px);
}
.advanced-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 10px;
}
.advanced-grid .toggles {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

/* Evaluation section */
.evaluation-section {
    margin-top: 16px;
    padding-top: 10px;
    border-top: 1px dashed rgba(148, 163, 184, 0.2);
}
.panel-header.small h3 {
    font-size: 1rem;
    margin: 0 0 6px 0;
}
.eval-metrics {
    margin-bottom: 10px;
}
.cm-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 8px;
    overflow: hidden;
}
.cm-table th, .cm-table td {
    border: 1px solid rgba(148, 163, 184, 0.15);
    padding: 8px 10px;
    text-align: center;
}
.cm-table th {
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}
.cm-table td {
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .advanced-grid {
        grid-template-columns: 1fr;
    }
}