/* ============================================
   PPC Calculator - Beautiful Dark Teal HUD Theme
   ============================================ */

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

:root {
    --neon-cyan: #00FFFF;
    --neon-cyan-dark: #00CCCC;
    --neon-cyan-light: #33FFFF;
    --neon-pink: #FF00FF;
    --dark-bg: #000000;
    --dark-panel: #0a0a0a;
    --dark-panel-light: #111111;
    --text-primary: rgba(0, 255, 255, 0.95);
    --text-secondary: rgba(0, 255, 255, 0.7);
    --text-muted: rgba(0, 255, 255, 0.5);
    --border: rgba(0, 255, 255, 0.15);
    --border-hover: rgba(0, 255, 255, 0.4);
    --glow-cyan: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan);
    --glow-cyan-soft: 0 0 5px var(--neon-cyan), 0 0 10px var(--neon-cyan);
    --success: #00FF00;
    --warning: #FFAA00;
    --danger: #FF4444;
}

body {
    font-family: var(--font-family, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif);
    background: var(--color-bg, var(--dark-bg));
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 255, 255, 0.03) 0%, transparent 50%);
    color: var(--color-text, var(--text-primary));
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}

.body {
    padding: var(--spacing-lg, 2rem) var(--spacing-md, 1.5rem);
    max-width: 100%;
    width: 100%;
}

/* Header styles removed - using homepage header */
.header-content {
    max-width: 100% !important;
    padding: 0.5rem var(--spacing-md, 1.5rem);
}

/* Help Button */
.help-button {
    position: fixed;
    top: 80px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(0, 255, 255, 0.1);
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-sticky, 10);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: var(--glow-cyan-soft);
}

.help-button:hover {
    background: rgba(0, 255, 255, 0.2);
    transform: scale(1.1);
    box-shadow: var(--glow-cyan);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--dark-panel);
    border: 2px solid var(--neon-cyan);
    border-radius: 16px;
    max-width: 800px;
    max-height: 90vh;
    width: 100%;
    overflow-y: auto;
    box-shadow: var(--glow-cyan);
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 24px 30px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 255, 255, 0.05);
}

.modal-header h2 {
    color: var(--neon-cyan);
    font-size: 1.75rem;
    text-shadow: var(--glow-cyan-soft);
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: transparent;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(0, 255, 255, 0.1);
    transform: rotate(90deg);
}

.modal-body {
    padding: 30px;
}

.help-section {
    margin-bottom: 30px;
}

.help-section h3 {
    color: var(--neon-cyan);
    font-size: 1.3rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.help-section p {
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.8;
}

.help-section ul {
    list-style: none;
    padding-left: 0;
    margin-top: 12px;
}

.help-section li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.help-section li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--neon-cyan);
    font-weight: bold;
}

.help-section code {
    background: rgba(0, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--neon-cyan);
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

/* Dashboard Layout - Sidebar + Main Content */
.dashboard-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
    align-items: start;
    width: 100%;
    max-width: 100%;
}

.sidebar {
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
}

.main-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    max-width: 100%;
}

.secondary-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* Cards */
.card {
    background: var(--dark-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 8px 30px rgba(0, 255, 255, 0.2), var(--glow-cyan-soft);
}

.card:hover::before {
    opacity: 1;
}

.card h2 {
    font-size: 1.4rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    border-bottom: 2px solid var(--neon-cyan);
    padding-bottom: 12px;
    text-shadow: var(--glow-cyan-soft);
    font-weight: 600;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: var(--dark-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    background: rgba(0, 255, 255, 0.05);
}

.form-group input:hover {
    border-color: var(--border-hover);
}

/* Buttons */
.btn-primary, .btn-secondary {
    width: 100%;
    padding: 14px 24px;
    border: 2px solid;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.btn-primary {
    background: transparent;
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
    text-shadow: var(--glow-cyan-soft);
    box-shadow: var(--glow-cyan-soft);
}

.btn-primary:hover {
    background: rgba(0, 255, 255, 0.15);
    border-color: var(--neon-cyan-light);
    color: var(--neon-cyan-light);
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan);
    text-shadow: var(--glow-cyan);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.metric-card {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.05) 0%, rgba(0, 255, 255, 0.02) 100%);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.metric-card:hover {
    border-color: var(--neon-cyan);
    box-shadow: var(--glow-cyan-soft);
    transform: translateY(-2px);
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 10px;
    font-weight: 500;
}

.metric-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--neon-cyan);
    margin-bottom: 8px;
    text-shadow: var(--glow-cyan-soft);
    font-family: 'Courier New', monospace;
}

.metric-trend {
    font-size: 0.85rem;
    font-weight: 500;
}

.trend-up {
    color: var(--success);
}

.trend-down {
    color: var(--danger);
}

/* Chart Panel */
.chart-panel {
    min-height: 450px;
}

#performanceChart {
    max-height: 400px;
}

/* Quality Score */
.quality-score-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.score-circle {
    flex-shrink: 0;
}

.score-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-cyan-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-bg);
    font-size: 3.5rem;
    font-weight: 700;
    box-shadow: var(--glow-cyan);
    border: 3px solid var(--neon-cyan-light);
}

.score-impact {
    flex: 1;
    min-width: 200px;
}

.impact-item {
    display: flex;
    justify-content: space-between;
    padding: 14px 16px;
    margin-bottom: 12px;
    background: var(--dark-bg);
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.impact-item:hover {
    border-color: var(--neon-cyan);
    background: rgba(0, 255, 255, 0.05);
}

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

.impact-value {
    color: var(--neon-cyan);
    font-weight: 700;
    font-size: 1.1rem;
}

.quality-tips {
    margin-top: 24px;
    padding: 20px;
    background: var(--dark-bg);
    border-radius: 8px;
    border-left: 4px solid var(--neon-cyan);
}

.quality-tips ul {
    list-style: none;
    padding-left: 0;
}

.quality-tips li {
    padding: 10px 0;
    padding-left: 24px;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.quality-tips li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--neon-cyan);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Strategy List */
.strategy-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.strategy-item {
    padding: 18px;
    background: var(--dark-bg);
    border-radius: 8px;
    border-left: 4px solid var(--neon-cyan);
    transition: all 0.3s ease;
}

.strategy-item:hover {
    background: rgba(0, 255, 255, 0.05);
    border-left-color: var(--neon-cyan-light);
    transform: translateX(4px);
}

.strategy-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--neon-cyan);
}

.strategy-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.6;
}

.strategy-score {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(0, 255, 255, 0.2);
    color: var(--neon-cyan);
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 8px;
    border: 1px solid var(--neon-cyan);
}

/* Budget */
.budget-breakdown {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.budget-item {
    display: flex;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--dark-bg);
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.budget-item:hover {
    border-color: var(--neon-cyan);
    background: rgba(0, 255, 255, 0.05);
}

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

.budget-value {
    color: var(--neon-cyan);
    font-weight: 700;
    font-size: 1.1rem;
    font-family: 'Courier New', monospace;
}

.budget-warning {
    margin-top: 18px;
    padding: 14px;
    border-radius: 8px;
    font-size: 0.95rem;
    border-left: 4px solid;
}

.warning {
    background: rgba(255, 170, 0, 0.1);
    border-left-color: var(--warning);
    color: var(--warning);
}

.success {
    background: rgba(0, 255, 0, 0.1);
    border-left-color: var(--success);
    color: var(--success);
}

/* A/B Test */
.ab-test-inputs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.ab-test-results {
    margin-top: 24px;
    padding: 20px;
    background: var(--dark-bg);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.significance-high {
    color: var(--success);
    font-weight: 700;
}

.significance-low {
    color: var(--warning);
    font-weight: 700;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(0, 255, 255, 0.3);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 255, 255, 0.5);
}

/* Responsive */
@media (max-width: 1200px) {
    .dashboard-layout {
        grid-template-columns: 280px 1fr;
    }
    
    .secondary-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 968px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        max-height: none;
    }
    
    .secondary-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .ab-test-inputs {
        grid-template-columns: 1fr;
    }
    
    .quality-score-visual {
        flex-direction: column;
        text-align: center;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .help-button {
        top: 10px;
        right: 10px;
        width: 44px;
        height: 44px;
        font-size: 1.3rem;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}