:root {
    --bg-app: #0b0f19;
    --bg-card: #131c2e;
    --bg-input: #1e293b;
    --border: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-cyan: #22d3ee;
    --accent-purple: #c084fc;
    --accent-green: #34d399;
    --accent-amber: #fbbf24;
    --accent-rose: #f43f5e;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-app);
    color: var(--text-primary);
    padding: 24px;
    line-height: 1.5;
}

.header-bar {
    max-width: 1600px;
    margin: 0 auto 20px auto;
    display: flex;
    justify-content: flex-end;
}

.lang-select {
    background-color: var(--bg-card);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    outline: none;
    font-weight: 600;
}

.planner-grid {
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 1200px) {
    .planner-grid { grid-template-columns: 450px 1fr; }
}

.panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.5);
}

h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.025em; margin-bottom: 4px; }
h2.cyan { color: var(--accent-cyan); }
h2.purple { color: var(--accent-purple); }

.description { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 24px; }

.control-group { margin-bottom: 20px; }
.control-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.control-label { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.control-value { font-family: monospace; font-size: 0.95rem; font-weight: 700; color: #fff; }
.control-value.purple-text { color: var(--accent-purple); }
.control-value.green-text { color: var(--accent-green); }

select, input[type="range"] { width: 100%; }
select {
    background-color: var(--bg-input);
    border: 1px solid var(--border);
    color: #fff;
    padding: 10px;
    border-radius: 6px;
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-top: 8px;
}

.checkbox-container input {
    cursor: pointer;
    width: 18px;
    height: 18px;
    accent-color: var(--accent-cyan);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: #1e293b;
    border-radius: 3px;
    outline: none;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-cyan);
    cursor: pointer;
    box-shadow: 0 0 8px rgba(34, 211, 238, 0.4);
}

.metrics-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.metric-tile {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
}
.metric-title { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; color: var(--text-secondary); letter-spacing: 0.05em; }
.metric-num { font-size: 1.75rem; font-weight: 700; margin-top: 4px; font-family: monospace; }
.metric-num.cyan-t { color: var(--accent-cyan); }
.metric-num.green-t { color: var(--accent-green); }
.metric-num.amber-t { color: var(--accent-amber); }

.workspace { display: flex; flex-direction: column; gap: 24px; }

.chart-wrapper {
    position: relative;
    background-color: #070a12;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
}
canvas { display: block; width: 100%; height: 480px; cursor: crosshair; }

.phaseout-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
    margin-top: 8px;
}
.phaseout-table th, .phaseout-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.phaseout-table th { color: var(--text-secondary); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; }

.badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: monospace;
}
.badge.neutral { background-color: #334155; color: #cbd5e1; }
.badge.alert { background-color: rgba(244, 63, 94, 0.15); color: var(--accent-rose); border: 1px solid rgba(244, 63, 94, 0.3); }

.tooltip-container {
    position: absolute;
    background: rgba(7, 10, 18, 0.95);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    font-size: 0.8rem;
    pointer-events: none;
    display: none;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.7);
    z-index: 50;
    min-width: 340px;
}
.tooltip-line { display: flex; justify-content: space-between; margin-bottom: 4px; }
.tooltip-line.highlight { font-size: 0.95rem; margin-top: 2px; }
.tooltip-hr { border-top: 1px solid var(--border); margin: 6px 0; }

.info-icon {
    display: inline-block;
    margin-left: 8px;
    cursor: help;
    color: var(--text-secondary);
    font-size: 0.95rem;
    vertical-align: middle;
    transition: color 0.2s;
}
.info-icon:hover {
    color: var(--accent-cyan);
}