:root {
    --bg: #080810;
    --bg-card: #0e0e1a;
    --bg-card-hover: #14142a;
    --text: #e8e8f0;
    --text-dim: #7878a0;
    --accent: #6366f1;
    --accent-glow: #818cf8;
    --accent-subtle: rgba(99, 102, 241, 0.1);
    --green: #22c55e;
    --yellow: #eab308;
    --red: #ef4444;
    --orange: #f97316;
    --border: #1e1e3a;
    --bar-bg: #151528;
}

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

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Header */
header {
    text-align: center;
    padding: 60px 20px 20px;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.06) 0%, transparent 100%);
}

header h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text) 0%, var(--accent-glow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--text);
    font-weight: 300;
}

.subtitle em {
    color: var(--accent-glow);
    font-style: italic;
}

.subtitle-detail {
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-top: 8px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Stat */
.hero-stat {
    text-align: center;
    padding: 40px 20px 30px;
}

.hero-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    color: var(--accent-glow);
    text-shadow: 0 0 60px rgba(99, 102, 241, 0.3);
    line-height: 1;
    transition: all 0.3s;
}

.hero-label {
    font-size: 1rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-top: 4px;
}

.hero-equals {
    font-size: 2rem;
    color: var(--text-dim);
    margin: 16px 0;
    opacity: 0.5;
}

.hero-comparison {
    font-size: clamp(1.1rem, 3vw, 1.6rem);
    color: var(--text);
    font-weight: 400;
    max-width: 700px;
    margin: 0 auto;
    min-height: 80px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

.comparison-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.9rem;
    animation: chip-in 0.4s ease-out backwards;
    white-space: nowrap;
}

.comparison-chip .icon {
    font-size: 1.1rem;
}

.comparison-chip .count {
    color: var(--accent-glow);
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

@keyframes chip-in {
    from { opacity: 0; transform: translateY(8px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Slider Section */
.slider-section {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.slider-header {
    text-align: center;
    margin-bottom: 24px;
}

.slider-header h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.slider-header h2 span {
    color: var(--accent-glow);
    font-family: 'JetBrains Mono', monospace;
}

.slider-hint {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.slider-container {
    position: relative;
    padding: 20px 0;
    text-align: center;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bar-bg);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
    transition: transform 0.15s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.slider-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-glow);
    margin-top: 12px;
}

.slider-words {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-top: 4px;
}

/* Fits Container */
.fits-container {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.fit-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.fit-card.fits {
    border-color: rgba(34, 197, 94, 0.3);
}

.fit-card.partial {
    border-color: rgba(234, 179, 8, 0.3);
}

.fit-card.nope {
    border-color: rgba(239, 68, 68, 0.15);
    opacity: 0.5;
}

.fit-card .fit-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 36px;
    text-align: center;
}

.fit-card .fit-info {
    flex: 1;
    min-width: 0;
}

.fit-card .fit-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fit-card .fit-tokens {
    font-size: 0.7rem;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
}

.fit-card .fit-status {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 8px;
    white-space: nowrap;
}

.fit-status.yes {
    background: rgba(34, 197, 94, 0.1);
    color: var(--green);
}

.fit-status.times {
    background: rgba(34, 197, 94, 0.1);
    color: var(--green);
    font-family: 'JetBrains Mono', monospace;
}

.fit-status.no {
    background: rgba(239, 68, 68, 0.1);
    color: var(--red);
}

.fit-card .fit-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    border-radius: 0 0 12px 12px;
    transition: width 0.5s ease;
}

.fit-bar.green { background: var(--green); }
.fit-bar.yellow { background: var(--yellow); }
.fit-bar.red { background: var(--red); }

/* Model Section */
.model-section {
    max-width: 1000px;
    margin: 40px auto;
    padding: 40px 20px;
}

.model-section h2, .your-text-section h2, .facts-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 6px;
}

.section-desc {
    font-size: 0.85rem;
    color: var(--text-dim);
    text-align: center;
    margin-bottom: 30px;
}

.model-bars {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.model-bar-row {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 4px 0;
    transition: opacity 0.2s;
}

.model-bar-row:hover {
    opacity: 0.85;
}

.model-bar-label {
    width: 180px;
    flex-shrink: 0;
    text-align: right;
    font-size: 0.82rem;
    font-weight: 500;
}

.model-bar-label .provider {
    font-size: 0.65rem;
    color: var(--text-dim);
    display: block;
}

.model-bar-wrapper {
    flex: 1;
    height: 28px;
    background: var(--bar-bg);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.model-bar-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    padding-left: 10px;
    min-width: 2px;
}

.model-bar-fill span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    overflow: hidden;
    text-overflow: ellipsis;
}

.model-bar-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--text-dim);
    width: 80px;
    flex-shrink: 0;
}

/* Your Text Section */
.your-text-section {
    max-width: 900px;
    margin: 20px auto;
    padding: 40px 20px;
}

.text-input-container {
    margin-bottom: 24px;
}

textarea {
    width: 100%;
    height: 150px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    padding: 16px;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
}

textarea:focus {
    border-color: var(--accent);
}

textarea::placeholder {
    color: var(--text-dim);
    opacity: 0.6;
}

.text-stats {
    display: flex;
    gap: 20px;
    padding: 10px 0;
}

.text-stat {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.text-stat strong {
    color: var(--accent-glow);
    font-family: 'JetBrains Mono', monospace;
}

.model-fit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
}

.model-fit-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: all 0.2s;
}

.model-fit-card.can-fit {
    border-color: rgba(34, 197, 94, 0.3);
}

.model-fit-card.cannot-fit {
    border-color: rgba(239, 68, 68, 0.2);
    opacity: 0.5;
}

.model-fit-card .mf-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.mf-indicator.green { background: var(--green); box-shadow: 0 0 8px rgba(34, 197, 94, 0.4); }
.mf-indicator.red { background: var(--red); box-shadow: 0 0 8px rgba(239, 68, 68, 0.3); }

.model-fit-card .mf-name {
    flex: 1;
    font-size: 0.82rem;
    font-weight: 500;
}

.model-fit-card .mf-context {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--text-dim);
}

.model-fit-card .mf-usage {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-dim);
}

/* Facts Section */
.facts-section {
    max-width: 1000px;
    margin: 20px auto;
    padding: 40px 20px 60px;
}

.facts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 10px;
}

.fact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s;
}

.fact-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.08);
}

.fact-model {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.fact-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent-glow);
    margin-bottom: 4px;
}

.fact-unit {
    font-size: 0.85rem;
    color: var(--text);
    margin-bottom: 8px;
}

.fact-detail {
    font-size: 0.75rem;
    color: var(--text-dim);
    line-height: 1.4;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid var(--border);
}

footer p {
    color: var(--text-dim);
    font-size: 0.8rem;
    margin-bottom: 6px;
}

.footer-note {
    font-size: 0.7rem !important;
    opacity: 0.5;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Responsive */
@media (max-width: 768px) {
    header { padding: 40px 16px 16px; }
    .hero-number { font-size: 3rem; }
    .model-bar-label { width: 120px; font-size: 0.75rem; }
    .model-bar-value { width: 60px; font-size: 0.65rem; }
    .fits-container { grid-template-columns: 1fr; }
    .facts-grid { grid-template-columns: 1fr; }
    .model-fit-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .model-bar-label { width: 90px; font-size: 0.7rem; }
    .model-bar-label .provider { display: none; }
    .model-bar-fill span { font-size: 0.55rem; }
    textarea { height: 100px; }
}