:root {
    --bg-body: #050505;
    --bg-panel: #0f0f11;
    --bg-card: #141416;
    --bg-card-hover: #1a1a1d;
    --bg-input: #0a0a0c;
    
    --border: #27272a;
    --border-hover: #3f3f46;
    
    --primary: #3b82f6;
    --primary-glow: rgba(59, 130, 246, 0.15);
    --primary-hover: #2563eb;
    
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.15);
    
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --text-main: #fafafa;
    --text-muted: #a1a1aa;
    --text-dim: #52525b;
    
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', sans-serif;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px -5px var(--primary-glow);
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
        linear-gradient(to bottom, rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(to right, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    background-attachment: fixed;
}

/* --- Header --- */
header {
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 2rem;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
}

.header-left {
    /* Empty for spacing */
}

.header-right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
}

.brand-logo {
    display: none; /* Hide the old CSS logo if it still exists */
}

.brand-logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.3));
}

.brand-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 0%, #a5f3fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(165, 243, 252, 0.3);
}

.brand-text span {
    background: linear-gradient(135deg, var(--primary) 0%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    margin-left: 4px;
    text-transform: uppercase;
    font-size: 0.8em;
    letter-spacing: 0.1em;
}

.lida-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 8px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    /* Override the span styles above */
    font-size: 1em !important; 
    margin-left: 0 !important;
}

.status-pill {
    background: rgba(16, 185, 129, 0.05);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 0.35rem 0.85rem;
    border-radius: 99px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
}

.status-dot {
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    box-shadow: 0 0 8px currentColor;
    animation: pulse 2s infinite;
}

/* --- Tabs --- */
.tabs-container {
    border-bottom: 1px solid var(--border);
    background: rgba(5, 5, 5, 0.5);
}

.tabs {
    display: flex;
    gap: 2rem;
    padding: 0 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 1rem 0.5rem;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    transition: all 0.2s;
}

.tab-btn:hover { color: var(--text-main); }
.tab-btn.active { color: var(--primary); }
.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    box-shadow: 0 -2px 10px var(--primary);
}

/* --- Main Layout --- */
main {
    padding: 2.5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 2.5rem;
    align-items: start;
}

@media (max-width: 1024px) {
    main { grid-template-columns: 1fr; }
}

/* --- Sidebar (Controls) --- */
.sticky-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-card);
}

.panel-header {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
}

.panel-title { 
    font-size: 0.95rem; 
    font-weight: 600; 
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-group { margin-bottom: 2rem; }
.control-group:last-child { margin-bottom: 0; }

label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Tooltip */
.tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--border);
    color: var(--text-muted);
    font-size: 10px;
    cursor: help;
    margin-left: 6px;
    position: relative;
}
.tooltip-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #222;
    color: #fff;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    z-index: 10;
    border: 1px solid var(--border);
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    margin-bottom: 6px;
    text-transform: none;
    font-weight: 400;
    letter-spacing: 0;
}

/* Custom Range Slider */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
    margin: 10px 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    margin-top: -6px;
    box-shadow: 0 0 10px var(--primary-glow);
    border: 2px solid var(--bg-panel);
    transition: transform 0.1s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--border);
    border-radius: 2px;
}

input[type="range"]:focus::-webkit-slider-runnable-track {
    background: var(--border-hover);
}

/* Text Area for Token Calc */
.token-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    resize: vertical;
    min-height: 100px;
    transition: border-color 0.2s;
}
.token-input:focus { border-color: var(--primary); outline: none; }

/* Improved Toggle */
.input-toggle {
    display: flex;
    background: var(--bg-input);
    padding: 4px;
    border-radius: 99px; /* Pill shape */
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    position: relative;
}
.input-toggle-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 8px;
    font-size: 0.75rem;
    cursor: pointer;
    border-radius: 99px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
    position: relative;
}
.input-toggle-btn.active {
    color: white;
}
/* Sliding background for toggle */
.toggle-bg {
    position: absolute;
    top: 4px; left: 4px; bottom: 4px;
    width: calc(50% - 4px);
    background: var(--primary);
    border-radius: 99px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}
.input-toggle.right .toggle-bg { transform: translateX(100%); }

/* Presets Grid */
.presets-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.preset-btn {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}
.preset-btn:hover {
    border-color: var(--primary);
    color: var(--text-main);
    background: var(--bg-card-hover);
}

/* --- Chart Section --- */
.chart-container {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: none; /* Hidden by default until data loads */
}
.chart-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-muted);
}
.chart-bars {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.chart-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.2s;
}
.chart-row:hover { background: var(--bg-card-hover); }
.chart-label { width: 120px; text-align: right; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chart-bar-bg { flex: 1; background: var(--bg-input); height: 24px; border-radius: 4px; overflow: hidden; position: relative; }
.chart-bar-fill { height: 100%; background: var(--primary); border-radius: 4px; transition: width 0.5s ease; }
.chart-value { width: 60px; font-family: var(--font-mono); color: var(--text-main); }

/* --- Results Grid --- */
.results-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.model-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 260px 1fr auto;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.model-card.highlight {
    animation: highlightPulse 1.5s ease-out;
    border-color: var(--primary);
}

@keyframes highlightPulse {
    0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7); }
    70% { box-shadow: 0 0 0 20px rgba(59, 130, 246, 0); }
    100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}

.model-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 2px; height: 100%;
    background: var(--primary);
    opacity: 0;
    transition: opacity 0.3s;
}

.model-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    background: var(--bg-card-hover);
}

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

@media (max-width: 850px) {
    .model-card { grid-template-columns: 1fr; }
    .model-card::before { width: 100%; height: 2px; }
}

/* Card Section 1: Identity */
.card-identity {
    padding: 2rem;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: rgba(255,255,255,0.01);
}

.model-name { 
    font-size: 1.3rem; 
    font-weight: 800; 
    margin-bottom: 0.25rem; 
    color: var(--text-main);
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, #fff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.model-provider { 
    font-size: 0.85rem; 
    color: var(--text-muted); 
    margin-bottom: 1.25rem; 
    display: flex;
    align-items: center;
    gap: 6px;
}

.badge-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.badge {
    font-size: 0.65rem;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-mono);
}
.badge-pro { background: rgba(59, 130, 246, 0.1); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.2); }
.badge-fast { background: rgba(16, 185, 129, 0.1); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.2); }
.badge-cheap { background: rgba(245, 158, 11, 0.1); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-deprecated { background: rgba(239, 68, 68, 0.1); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.2); }

/* Card Section 2: Stats & Details */
.card-stats {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-row {
    display: flex;
    gap: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.stat-item { flex: 1; }
.stat-label { 
    font-size: 0.7rem; 
    color: var(--text-muted); 
    text-transform: uppercase; 
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
}
.stat-val { 
    font-family: var(--font-mono); 
    font-size: 1.1rem; 
    font-weight: 500;
}
.stat-val.cost { color: var(--success); text-shadow: 0 0 10px rgba(16, 185, 129, 0.2); }
.stat-val.expensive { color: var(--danger); }

.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    font-size: 0.9rem;
}

.detail-list h4 { 
    color: var(--text-dim); 
    margin-bottom: 0.75rem; 
    font-size: 0.75rem; 
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.detail-list ul { list-style: none; }
.detail-list li { margin-bottom: 0.4rem; display: flex; align-items: flex-start; gap: 8px; line-height: 1.4; }
.detail-list li.pro svg { color: var(--success); flex-shrink: 0; }
.detail-list li.con svg { color: var(--danger); flex-shrink: 0; }

/* Card Section 3: Actions */
.card-actions {
    padding: 2rem;
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.75rem;
    min-width: 160px;
    background: rgba(255,255,255,0.01);
}

.btn {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-main);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    font-weight: 600;
    font-family: var(--font-sans);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:hover { 
    background: var(--bg-card-hover); 
    border-color: var(--text-muted); 
    color: white;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.btn-primary:hover { 
    background: var(--primary-hover); 
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.btn-link {
    border: none;
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 0.5rem;
}
.btn-link:hover { background: none; color: var(--primary); text-decoration: underline; }

/* Compare Checkbox */
.compare-check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
    margin-top: 0.5rem;
}
.compare-check input {
    accent-color: var(--primary);
    width: 14px;
    height: 14px;
}

/* Compare Bar */
.compare-bar {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-panel);
    border: 1px solid var(--primary);
    padding: 1rem 2rem;
    border-radius: 99px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.compare-bar.visible {
    transform: translateX(-50%) translateY(0);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(8px);
    animation: fadeIn 0.2s ease-out;
}

.modal {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    width: 800px;
    max-width: 95%;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 90vh;
    overflow-y: auto;
}

.code-block {
    background: #09090b;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: #a5f3fc;
    overflow-x: auto;
    margin-top: 1.5rem;
    border: 1px solid var(--border);
    line-height: 1.6;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
    position: relative;
}
.code-block::before {
    content: attr(data-lang);
    position: absolute;
    top: 0;
    right: 0;
    background: var(--border);
    color: var(--text-muted);
    font-size: 0.6rem;
    padding: 2px 8px;
    border-bottom-left-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
}

.close-btn {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    background: none; border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
}
.close-btn:hover { color: white; }

/* Export Tabs */
.export-tabs {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}
.export-tab {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
    border-bottom: 2px solid transparent;
}
.export-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Compare Table */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}
.compare-table th, .compare-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.compare-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
}
.compare-table td {
    font-size: 0.9rem;
}

/* Animations */
@keyframes pulse { 
    0% { opacity: 0.5; transform: scale(1); } 
    50% { opacity: 1; transform: scale(1.2); } 
    100% { opacity: 0.5; transform: scale(1); } 
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.hidden { display: none; }

.graveyard-section { 
    opacity: 0.6; 
    filter: grayscale(0.8);
    transition: all 0.3s;
}
.graveyard-section:hover {
    opacity: 1;
    filter: grayscale(0);
}

/* Icons */
.icon { width: 16px; height: 16px; stroke-width: 2; }

/* ===== AMAZING FOOTER ===== */
.footer {
    padding: 50px 1px;
    color: #090909;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 60px;
    color: #ff6b6b;
}

.footer::before {
    content: '';
    color: #090909;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0px;
}

@keyframes shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: 200px 0; }
}

.footer-content {
    max-width: 1000px;
    color: #090909;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    position: relative;
    z-index: 1;
}

.footer-copyright {
    font-size: 20px;
    color: #c1bdd7;
    font-weight: 200;
    -webkit-background-clip: text;
    background-clip: text;
    margin: 0;
    text-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
    letter-spacing: 0.5px;
}

.footer-version {
    font-size: 16px;
    color: #f4f4f4;
    margin: 0;
    font-weight: 500;
    padding: 8px 20px;
    border-radius: 20px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    backdrop-filter: blur(3px);
}

.footer-heart {
    color: #ff6b6b;
    animation: heartbeat 1.5s infinite;
    display: inline-block;
}

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

.btn-discover {
    margin-top: 6px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    border: 2px solid rgba(198, 189, 189, 0.1);
    position: relative;
    overflow: hidden;
}

.btn-discover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-discover:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.6);
}