:root {
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(26, 26, 46, 0.8);
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --accent-primary: #8b5cf6;
    --accent-secondary: #06b6d4;
    --accent-tertiary: #f59e0b;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --ring-adopt: #10b981;
    --ring-trial: #06b6d4;
    --ring-assess: #f59e0b;
    --ring-hold: #ef4444;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.4);
}

body.light-theme {
    --bg-primary: #f8fafc;
    --bg-secondary: #e2e8f0;
    --bg-card: rgba(255, 255, 255, 0.9);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.3);
}

body.light-theme {
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 50%, #dbeafe 100%);
}

body.light-theme::before {
    background:
        radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
    z-index: 1;
    zoom: 0.75;
    -moz-transform: scale(0.75);
    -moz-transform-origin: 0 0;
}

header {
    text-align: center;
    margin-bottom: 50px;
    animation: fadeInDown 0.8s ease-out;
    position: relative;
}

.header-actions {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    gap: 10px;
}

.icon-btn {
    width: 44px;
    height: 44px;
    border: 2px solid rgba(139, 92, 246, 0.2);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(6, 182, 212, 0.1));
}

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

a.icon-btn {
    text-decoration: none;
}

.moon-icon {
    display: none;
}

body.light-theme .sun-icon {
    display: none;
}

body.light-theme .moon-icon {
    display: block;
}

/* AI Toggle Styles */
.data-source-toggle {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(139, 92, 246, 0.2);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.data-source-toggle:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.toggle-text {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#ai-toggle {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 40px;
    height: 20px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--text-secondary);
    top: 2px;
    left: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#ai-toggle:checked + .toggle-slider {
    background: var(--accent-primary);
}

#ai-toggle:checked + .toggle-slider::before {
    transform: translateX(20px);
    background: white;
}

#ai-toggle:checked ~ .toggle-text:last-child {
    color: var(--accent-primary);
}

#ai-toggle:not(:checked) ~ .toggle-text:first-child {
    color: var(--text-primary);
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 50%, #10b981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 20px;
}

.keyboard-hints {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.keyboard-hints span {
    display: flex;
    align-items: center;
    gap: 6px;
}

kbd {
    background: var(--bg-card);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 6px;
    padding: 4px 8px;
    font-family: 'Inter', monospace;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.controls {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(139, 92, 246, 0.1);
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

#search {
    width: 240px;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.2);
    border: 2px solid rgba(139, 92, 246, 0.2);
    border-radius: 12px;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#search::placeholder {
    color: var(--text-secondary);
}

#search:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1), var(--shadow-md);
    transform: translateY(-2px);
}

.filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    border: 2px solid rgba(139, 92, 246, 0.2);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(139, 92, 246, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.filter-btn:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 450px;
    gap: 40px;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
    align-items: start;
}

.left-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.radar-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 40px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.radar-container::before {
    content: '';
    position: absolute;
    width: 90%;
    height: 90%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

#radar {
    max-width: 100%;
    height: auto;
    cursor: default;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
}

.blip {
    cursor: pointer;
    pointer-events: bounding-box;
    filter: brightness(1);
    transition: filter 0.15s ease-out;
}

.blip:hover {
    filter: brightness(1.3) drop-shadow(0 0 8px rgba(139, 92, 246, 0.6));
}

.blip:hover .blip-outer-ring {
    opacity: 0.5 !important;
    transition: opacity 0.15s ease-out;
}

/* Allow clicks to bubble up to the parent .blip group */
.blip > circle,
.blip > text {
    pointer-events: none;
}

.blip.highlighted {
    filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.8));
    animation: blipGlow 1.5s ease-in-out infinite alternate;
}

@keyframes blipPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.85;
    }
}

@keyframes blipGlow {
    from {
        filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.6));
    }
    to {
        filter: drop-shadow(0 0 16px rgba(139, 92, 246, 1));
    }
}

.blip-label {
    font-size: 11px;
    fill: var(--text-primary);
    pointer-events: none;
    user-select: none;
    font-weight: 600;
}

.sidebar {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(139, 92, 246, 0.1);
    overflow: hidden;
}

.sidebar::-webkit-scrollbar {
    width: 8px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(139, 92, 246, 0.05);
    border-radius: 10px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.3);
    border-radius: 10px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 92, 246, 0.5);
}

.legend {
    flex-shrink: 0;
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(139, 92, 246, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.legend h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s;
}

.legend-item:hover {
    background: rgba(139, 92, 246, 0.1);
    transform: translateX(5px);
}

.ring-color {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.ring-color.adopt {
    background: linear-gradient(135deg, var(--ring-adopt), #059669);
}

.ring-color.trial {
    background: linear-gradient(135deg, var(--ring-trial), #0891b2);
}

.ring-color.assess {
    background: linear-gradient(135deg, var(--ring-assess), #d97706);
}

.ring-color.hold {
    background: linear-gradient(135deg, var(--ring-hold), #dc2626);
}

.tech-details {
    flex-shrink: 0;
    padding: 24px;
    background: rgba(139, 92, 246, 0.08);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    margin-bottom: 25px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tech-details h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tech-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(139, 92, 246, 0.2);
    backdrop-filter: blur(5px);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.tech-list {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.tech-list::-webkit-scrollbar {
    width: 8px;
}

.tech-list::-webkit-scrollbar-track {
    background: rgba(139, 92, 246, 0.05);
    border-radius: 10px;
}

.tech-list::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.3);
    border-radius: 10px;
}

.tech-list::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 92, 246, 0.5);
}

.tech-list h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.tech-category {
    margin-bottom: 25px;
}

.tech-category h4 {
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
    padding-left: 8px;
    border-left: 3px solid var(--accent-primary);
}

.tech-item {
    padding: 12px 16px;
    margin-bottom: 8px;
    background: rgba(139, 92, 246, 0.05);
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s ease-out, border-color 0.2s ease-out;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid transparent;
}

.tech-item:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.4);
}

.tech-item.highlighted {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(6, 182, 212, 0.2));
    border-color: var(--accent-primary);
    font-weight: 600;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.tech-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.4);
}

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .sidebar {
        height: auto;
    }

    .tech-list {
        max-height: 500px;
    }

    h1 {
        font-size: 2.5rem;
    }

    .header-actions {
        position: static;
        justify-content: center;
        margin-bottom: 20px;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
    }

    #search {
        width: 100%;
    }

    .filters {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
    }

    .radar-container {
        padding: 20px;
    }

    .sidebar {
        padding: 20px;
    }

    .container {
        padding: 20px 10px;
    }

    .keyboard-hints {
        font-size: 0.8rem;
        gap: 10px;
    }

    kbd {
        font-size: 0.75rem;
        padding: 3px 6px;
    }
}

/* Smooth theme transition */
body,
.main-content,
.legend,
.tech-details,
.tech-item,
#search,
.filter-btn,
.icon-btn {
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Selection styling */
::selection {
    background: rgba(139, 92, 246, 0.3);
    color: var(--text-primary);
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    body::before,
    .controls,
    .header-actions,
    .keyboard-hints {
        display: none;
    }

    body {
        background: white;
    }

    .main-content {
        box-shadow: none;
    }
}

.quadrant-label {
    font-size: 15px;
    font-weight: 700;
    fill: var(--text-secondary);
    text-anchor: middle;
    opacity: 0.7;
}

/* Tooltip */
.tooltip {
    position: fixed;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 0.9rem;
    color: var(--text-primary);
    pointer-events: none;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip.show {
    opacity: 1;
}

/* Loading animation */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(139, 92, 246, 0.2);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}