:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.5);
    --input-bg: #334155;
    --border-color: #475569;
    --gradient-start: #38bdf8;
    --gradient-end: #818cf8;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: grid;
    grid-template-rows: 1fr auto;
    justify-items: center;
    padding: 20px;
}

.app-container {
    width: 100%;
    max-width: 500px;
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    align-self: center;
}


header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '▼';
    font-size: 0.8rem;
    color: var(--accent-color);
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

select,
input {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    appearance: none;
    outline: none;
    transition: all 0.3s ease;
}

select:focus,
input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.income-rows-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.income-row {
    display: grid;
    grid-template-columns: 1fr 140px;
    gap: 12px;
    animation: slideIn 0.3s ease-out forwards;
    opacity: 0;
    transform: translateX(-10px);
}

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.income-input-group {
    position: relative;
}

.income-input-group input {
    padding-left: 32px;
}

.currency-prefix {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-weight: 600;
}

.result-section {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.result-section h2 {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 12px;
}

.money-display {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
    font-feature-settings: "tnum";
    font-variant-numeric: tabular-nums;
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 8px;
}

.currency-suffix {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.per-second-label {
    color: var(--accent-color);
    font-size: 1.1rem;
    font-weight: 600;
}

@media (max-width: 480px) {
    .controls-grid {
        grid-template-columns: 1fr;
    }

    .income-row {
        grid-template-columns: 1fr;
    }

    .money-display {
        font-size: 2.5rem;
    }
}

/* Rank Sections */
.global-rank-section,
.local-rank-section {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.global-rank-section h2,
.local-rank-section h2 {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 20px;
}

.rank-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.rank-gauge {
    width: 100%;
    max-width: 300px;
    height: 12px;
    background-color: var(--input-bg);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.rank-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    border-radius: 6px;
    transition: width 1s ease-out;
    box-shadow: 0 0 10px var(--accent-glow);
}

.rank-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.rank-percentile {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    font-feature-settings: "tnum";
    font-variant-numeric: tabular-nums;
}

.rank-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-top: 4px;
}

.rank-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 8px;
}

.rank-description span {
    color: var(--accent-color);
    font-weight: 600;
}

/* Globe Section */
.globe-section {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.globe-section h2 {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 20px;
}

#globe-viz {
    width: 100%;
    height: 400px;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
    background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
}

.globe-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.color-box {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    display: inline-block;
}

/* Footer */
footer {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
    margin-top: 0;
}

.x-icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

footer a:hover .x-icon {
    color: var(--text-primary);
}