/* styles.css */
:root {
    --bg-dark: #0b0c10;
    --bg-card: #1f2833;
    --accent-blue: #66fcf1;
    --accent-purple: #833ab4;
    --accent-teal: #45f3ff;
    --text-primary: #ffffff;
    --text-secondary: #c5c6c7;
    --border-color: #2f3e46;
}

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

body {
    background-color: #000000;
    color: var(--text-primary);
    font-family: 'Space Grotesk', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.glow-bg {
    position: absolute;
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(102, 252, 241, 0.08) 0%, rgba(131, 58, 180, 0.02) 60%, rgba(0,0,0,0) 100%);
    top: -300px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 0;
    pointer-events: none;
}

header {
    width: 100%;
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-accent {
    color: var(--accent-blue);
    background: linear-gradient(45deg, var(--accent-blue), #00c853);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-github {
    padding: 0.6rem 1.5rem;
    background-color: transparent;
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-github:hover {
    background-color: var(--accent-blue);
    color: var(--bg-dark);
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.4);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    position: relative;
    z-index: 10;
}

.hero {
    text-align: center;
    margin-bottom: 4rem;
}

.hero h1 {
    font-size: 4rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, #ffffff, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.water-calculator-card {
    background-color: var(--bg-card);
    border-radius: 20px;
    padding: 3rem;
    border: 1px solid var(--border-color);
    margin-bottom: 5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.result-box {
    background-color: rgba(0,0,0,0.2);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.05);
}

.result-box .value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-teal);
    margin-bottom: 0.5rem;
    font-family: 'Outfit', sans-serif;
}

.result-box .label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.progress-bar-container {
    background-color: rgba(255,255,255,0.1);
    height: 10px;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-bar {
    background: linear-gradient(90deg, var(--accent-blue), #26a69a);
    height: 100%;
    border-radius: 5px;
    transition: width 0.5s cubic-bezier(0.1, 0.8, 0.3, 1);
}

.stats-interactive-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-period-card {
    background-color: rgba(0, 0, 0, 0.2);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.2s ease;
}

.stat-period-card:hover {
    border-color: rgba(102, 252, 241, 0.5);
    background-color: rgba(255, 255, 255, 0.02);
}

.stat-period-card.active {
    border-color: var(--accent-blue);
    background-color: rgba(102, 252, 241, 0.05);
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.15);
}

.stat-period-card .period-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-period-card .token-value {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    font-family: 'Outfit', sans-serif;
}

.calc-results-full {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.graphs-section {
    margin-bottom: 5rem;
}

.graphs-section h2, .protocol-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    font-family: 'Outfit', sans-serif;
}

.chart-container-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.neon-chart {
    overflow: visible;
}

.chart-bar {
    cursor: pointer;
    transition: all 0.3s ease;
    filter: drop-shadow(0 0 2px rgba(102, 252, 241, 0.2));
}

.chart-bar:hover {
    filter: drop-shadow(0 0 8px rgba(102, 252, 241, 0.6));
    opacity: 0.9;
}

.chart-bar.active {
    filter: drop-shadow(0 0 12px rgba(102, 252, 241, 0.8));
    stroke: #ffffff;
    stroke-width: 1px;
}

.protocol-section {
    margin-bottom: 5rem;
}

.protocol-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.protocol-card p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.protocol-steps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
}

.p-step {
    background-color: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.03);
    border-radius: 12px;
    padding: 2rem;
}

.p-step h5 {
    font-size: 1.1rem;
    color: var(--accent-blue);
    margin-bottom: 0.75rem;
    font-family: 'Outfit', sans-serif;
}

.p-step p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 0;
}

@media(max-width: 900px) {
    .protocol-steps-grid {
        grid-template-columns: 1fr;
    }
}

.result-box.large {
    padding: 2rem;
}

.result-box.large .value {
    font-size: 2.75rem;
}

.citations-section {
    margin-bottom: 5rem;
}

.citations-section h2, .deep-dive-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    font-family: 'Outfit', sans-serif;
}

.citations-card {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2.5rem;
}

.citations-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.sources-links {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.sources-links strong {
    color: white;
    display: block;
    margin-bottom: 0.75rem;
}

.sources-links ul {
    list-style-type: none;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.sources-links a {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.sources-links a:hover {
    color: var(--accent-teal);
    text-decoration: underline;
}

.deep-dive-section {
    margin-bottom: 5rem;
}

.deep-dive-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
}

.dive-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    transition: border 0.3s;
}

.dive-card:hover {
    border-color: var(--accent-blue);
}

.dive-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-family: 'Outfit', sans-serif;
    color: white;
}

.dive-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

@media(max-width: 900px) {
    .stats-interactive-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .calc-results-full, .deep-dive-grid {
        grid-template-columns: 1fr;
    }
}

.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 5rem;
}

.card {
    background-color: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.card:hover {
    background-color: rgba(255,255,255,0.05);
    border-color: var(--accent-blue);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-family: 'Outfit', sans-serif;
}

.card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.architecture {
    text-align: center;
}

.architecture h2 {
    font-size: 2rem;
    margin-bottom: 3rem;
    font-family: 'Outfit', sans-serif;
}

.flow-steps {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 3rem;
    position: relative;
}

.step {
    text-align: left;
    position: relative;
}

.step-num {
    font-size: 3rem;
    font-weight: 800;
    color: rgba(102, 252, 241, 0.2);
    display: block;
    margin-bottom: 1rem;
    font-family: 'Outfit', sans-serif;
}

.step h4 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
}

.step p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

footer {
    text-align: center;
    padding: 4rem 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media(max-width: 900px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }
    .stat-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    .grid-layout, .flow-steps {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
}

/* Model Breakdown Section */
.model-breakdown-web-section {
    margin-top: 3.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.model-breakdown-web-section h3 {
    font-size: 1.25rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.model-card {
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.model-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
    background-color: rgba(255, 255, 255, 0.01);
}

.model-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.model-card-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.model-card-pct {
    font-size: 0.85rem;
    font-weight: 500;
}

.model-card-tokens {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: 'Outfit', sans-serif;
    color: white;
}

.model-card-bar-bg {
    background-color: rgba(255, 255, 255, 0.05);
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    margin-top: auto;
}

.model-card-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s cubic-bezier(0.1, 0.8, 0.3, 1);
}

/* Tooltip Styling */
.chart-tooltip {
    position: absolute;
    background-color: rgba(11, 12, 16, 0.95);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 16px;
    pointer-events: none;
    z-index: 1000;
    display: none;
    font-family: 'Space Grotesk', sans-serif;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    min-width: 220px;
    transition: opacity 0.15s ease;
}

.chart-tooltip-date {
    font-size: 0.85rem;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.chart-tooltip-total {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent-teal);
    margin-bottom: 6px;
    display: flex;
    justify-content: space-between;
}

.chart-tooltip-total span {
    font-family: 'Outfit', sans-serif;
}

.chart-tooltip-model {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.chart-tooltip-model:last-child {
    margin-bottom: 0;
}

.model-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.chart-overlay-bar {
    fill: transparent;
    cursor: pointer;
}

.chart-overlay-bar:hover {
    fill: rgba(255, 255, 255, 0.03);
}

@media(max-width: 768px) {
    .model-grid {
        grid-template-columns: 1fr;
    }
}