:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    --accent-color: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --success-color: #10b981;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at top right, #1e1b4b, transparent), radial-gradient(circle at bottom left, #1e293b, transparent);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
}

.container {
    max-width: 800px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    text-align: center;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #a78bfa;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.inputs-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-weight: 400;
    color: var(--text-secondary);
}

.input-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

input[type="range"] {
    flex: 1;
    accent-color: var(--accent-color);
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
}

input[type="number"] {
    width: 100px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    border-radius: 0.5rem;
    padding: 0.5rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
}

input[type="number"]:focus {
    outline: 1px solid var(--accent-color);
}

.results-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.result-card {
    background: rgba(0, 0, 0, 0.2);
    padding: 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.result-card h3 {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 600;
    font-family: monospace;
}

.chart-container {
    height: 300px;
    margin-top: 1rem;
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.info-card p {
    line-height: 1.6;
    color: var(--text-secondary);
}

footer {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 1rem;
}

footer hr {
    border: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin-bottom: 1rem;
}

@media (max-width: 600px) {
    .results-section {
        grid-template-columns: 1fr;
    }
}