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

:root {
    --cf-orange: #F6821F;
    --cf-dark: #1d1d1d;
    --cf-gray: #404040;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --panel-bg: rgba(29, 29, 29, 0.95);
    --border-subtle: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--cf-dark);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

#scene {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--cf-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}

#loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

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

.loading-content p {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--cf-orange);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

#app-container {
    /* Desktop: no special layout, children use fixed positioning */
}

#scene-wrapper {
    /* Desktop: scene uses fixed positioning, wrapper is passive */
}


#cost-matrix {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    padding: 1rem;
    background: rgba(29, 29, 29, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    z-index: 100;
}

#cost-matrix table {
    border-collapse: collapse;
    font-size: 0.8rem;
}

#cost-matrix th,
#cost-matrix td {
    padding: 0.4rem 1rem;
    text-align: center;
}

#cost-matrix th {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    font-weight: 500;
}

#cost-matrix td {
    color: var(--text-secondary);
}

#cost-matrix td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--text-primary);
}

#cost-matrix tr.current {
    background: rgba(246, 130, 31, 0.15);
}

#cost-matrix tr.current td {
    color: var(--cf-orange);
    font-weight: 600;
}

#cost-matrix tr.current td:first-child {
    color: var(--cf-orange);
}

#cost-matrix tbody tr {
    cursor: pointer;
    transition: background 0.2s;
}

#cost-matrix tbody tr:hover {
    background: rgba(255,255,255,0.05);
}

/* ============================================
   SPLIT VIEW COMPARISON STYLES
   ============================================ */

/* Column Labels */
#column-labels {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    z-index: 150;
    pointer-events: none;
}

.column-label {
    flex: 1;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
}

.column-label.left {
    justify-content: flex-start;
    background: linear-gradient(to bottom, rgba(246, 130, 31, 0.15), transparent);
    color: var(--cf-orange);
}

.column-label.right {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
    background: linear-gradient(to bottom, rgba(16, 185, 129, 0.15), transparent);
    color: #10B981;
}

.column-label.right .label-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.column-label.right #provider-select {
    pointer-events: auto;
    background: rgba(29, 29, 29, 0.9);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 0.4rem 0.6rem;
    font-size: 0.75rem;
    font-family: inherit;
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.column-label.right #provider-select:hover {
    border-color: #10B981;
}

.column-label.right #provider-select:focus {
    outline: none;
    border-color: #10B981;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.label-icon {
    font-size: 1rem;
}

.label-text {
    opacity: 0.9;
}

/* Center Divider */
#center-divider {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(
        to bottom,
        transparent 5%,
        rgba(255, 255, 255, 0.2) 20%,
        rgba(255, 255, 255, 0.3) 50%,
        rgba(255, 255, 255, 0.2) 80%,
        transparent 95%
    );
    z-index: 100;
    pointer-events: none;
}

/* Comparison Table */
#comparison-table {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 1.5rem;
    background: rgba(29, 29, 29, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    z-index: 100;
}

#comparison-table table {
    border-collapse: collapse;
    font-size: 0.85rem;
}

#comparison-table th,
#comparison-table td {
    padding: 0.5rem 1.5rem;
    text-align: center;
}

#comparison-table th {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    font-weight: 500;
    padding-bottom: 0.75rem;
}

#comparison-table th.cf-column {
    color: var(--cf-orange);
}

#comparison-table th.mixed-column {
    color: #10B981;
}

#comparison-table td {
    color: var(--text-secondary);
}

#comparison-table td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--text-primary);
    padding-right: 2rem;
}

#comparison-table .cf-column {
    color: var(--cf-orange);
    font-weight: 500;
}

#comparison-table .mixed-column {
    color: #10B981;
    font-weight: 500;
}

#comparison-table tbody tr {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Base info panel styles (shared by both panels) */
.info-panel {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 280px;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    background: var(--panel-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1.25rem;
    z-index: 200;
    backdrop-filter: blur(20px);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Left column panel - positioned on right side of left column */
#info-panel-left {
    right: calc(50% + 1rem);
}

#info-panel-left.hidden {
    transform: translateY(-50%) translateX(350px);
    opacity: 0;
    pointer-events: none;
}

/* Right column panel - positioned on right side of right column */
#info-panel-right {
    right: 1rem;
}

#info-panel-right.hidden {
    transform: translateY(-50%) translateX(350px);
    opacity: 0;
    pointer-events: none;
}

.info-panel .close-panel {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: color 0.2s;
}

.info-panel .close-panel:hover {
    color: var(--text-primary);
}

.info-panel .panel-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    padding-right: 1.5rem;
}

.info-panel .panel-subtitle {
    display: block;
    font-size: 0.85rem;
    font-weight: 400;
    font-style: italic;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

/* Alternatives dropdown */
.info-panel .panel-alternatives {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
}

.info-panel .panel-alternatives.hidden {
    display: none;
}

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

.info-panel .panel-alternatives-select {
    background: var(--cf-gray);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 0.35rem 0.5rem;
    font-size: 0.8rem;
    font-family: inherit;
    cursor: pointer;
}

.info-panel .panel-alternatives-select:focus {
    outline: none;
    border-color: var(--cf-orange);
}

.info-panel .panel-description {
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.info-panel .panel-reasons h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--cf-orange);
    margin-bottom: 0.5rem;
}

.info-panel .panel-reasons-list {
    list-style: none;
    margin-bottom: 1rem;
}

.info-panel .panel-reasons-list li {
    padding: 0.2rem 0;
    padding-left: 1rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.info-panel .panel-reasons-list li::before {
    content: "\2022";
    position: absolute;
    left: 0;
    color: var(--cf-orange);
}

.info-panel .panel-code {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
    overflow-x: auto;
}

.info-panel .panel-code pre {
    margin: 0;
}

.info-panel .panel-code code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--text-primary);
}

.info-panel .panel-links {
    display: flex;
    gap: 1rem;
}

.info-panel .panel-links a {
    color: var(--cf-orange);
    text-decoration: none;
    font-size: 0.8rem;
    transition: opacity 0.2s;
}

.info-panel .panel-links a:hover {
    opacity: 0.8;
}

/* Compatibility warning */
.info-panel .panel-compatibility-warning {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 193, 7, 0.15);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 6px;
    font-size: 0.75rem;
    color: #ffc107;
    margin-top: 0.5rem;
}

.info-panel .panel-compatibility-warning.hidden {
    display: none;
}

.info-panel .panel-compatibility-warning .warning-icon {
    flex-shrink: 0;
}

/* Alternative details metrics */
.info-panel .panel-alt-details {
    margin-bottom: 1rem;
}

.info-panel .panel-alt-details.hidden {
    display: none;
}

.info-panel .alt-metrics {
    display: flex;
    gap: 0.75rem;
}

.info-panel .alt-metric {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.info-panel .alt-metric strong {
    display: block;
    color: var(--text-primary);
    font-size: 0.85rem;
    margin-bottom: 0.15rem;
}

/* Apply Alternative button */
.info-panel .btn-apply-alt {
    width: 100%;
    margin-top: 1rem;
    padding: 0.6rem 1rem;
    background: linear-gradient(135deg, #10B981, #059669);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.info-panel .btn-apply-alt:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.info-panel .btn-apply-alt.hidden {
    display: none;
}

/* Affected components legend */
.info-panel .affected-legend {
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    font-size: 0.75rem;
}

.info-panel .affected-legend.hidden {
    display: none;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-dot.recommended {
    background: #10B981;
    box-shadow: 0 0 8px #10B981;
}

.legend-dot.warning {
    background: #F59E0B;
    box-shadow: 0 0 8px #F59E0B;
}

.legend-text {
    color: var(--text-secondary);
}

.legend-text strong {
    color: var(--text-primary);
}

#controls {
    position: fixed;
    top: 4rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 100;
}

#controls button {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

#controls button.primary {
    background: var(--cf-orange);
    color: white;
}

#controls button.primary:hover {
    background: #e5750a;
    transform: scale(1.02);
}

#controls button.hidden {
    display: none;
}

#coming-soon {
    position: fixed;
    top: 80px;
    left: 20px;
    width: 320px;
    background: var(--panel-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1.5rem;
    z-index: 150;
    backdrop-filter: blur(20px);
    text-align: left;
}

#coming-soon h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--cf-orange);
    margin-bottom: 0.25rem;
}

#coming-soon .tagline {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

#coming-soon .status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(246, 130, 31, 0.15);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--cf-orange);
    margin-bottom: 1rem;
}

#coming-soon .status-dot {
    width: 8px;
    height: 8px;
    background: var(--cf-orange);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

#coming-soon .details {
    text-align: left;
    margin-bottom: 1rem;
}

#coming-soon .details p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

#coming-soon .details strong {
    color: var(--text-primary);
}

#coming-soon .github-link {
    display: inline-block;
    color: var(--cf-orange);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--cf-orange);
    border-radius: 6px;
    transition: all 0.2s;
}

#coming-soon .github-link:hover {
    background: var(--cf-orange);
    color: white;
}

/* Desktop: Hide coming-soon when scene is exploded */
@media (min-width: 769px) {
    #coming-soon.scene-exploded {
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }
}

@media (max-width: 768px) {
    /* Mobile: Stacked flexbox layout */
    #app-container {
        display: flex;
        flex-direction: column;
        min-height: 100vh;
        min-height: 100dvh; /* Dynamic viewport for mobile browsers */
    }

    #cost-matrix {
        position: static;
        flex-shrink: 0;
        padding: 0.5rem;
        overflow-x: auto;
    }

    #cost-matrix table {
        font-size: 0.7rem;
    }

    #cost-matrix th,
    #cost-matrix td {
        padding: 0.3rem 0.5rem;
    }

    #scene-wrapper {
        flex: 1;
        position: relative;
        min-height: 250px;
    }

    #scene {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    #coming-soon {
        position: static;
        flex-shrink: 0;
        border-radius: 0;
        margin: 0;
        padding: 1rem;
        width: auto;
    }

    #coming-soon h2 {
        font-size: 1.1rem;
    }

    #coming-soon .details p {
        font-size: 0.8rem;
    }

    #controls {
        position: fixed;
        top: 4rem;
        left: 50%;
        transform: translateX(-50%);
        z-index: 100;
    }

    #controls button {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

    #info-panel {
        width: calc(100% - 40px);
        right: 20px;
        left: 20px;
        top: auto;
        bottom: 20px;
        max-height: 50vh;
    }

}