/* Keep the platform-injected public badge hidden across page loads. */
#nl-badge-frame {
    display: none !important;
}

:root {
    color-scheme: light;
    --bg: #f4f6f9;
    --panel: #ffffff;
    --panel-2: #f8fafc;
    --text: #21313f;
    --muted: #6b7280;
    --border: #d9e2ec;
    --accent: #2563eb;
    --accent-2: #10b981;
    --warning: #f59e0b;
    --danger: #e11d48;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

body.dark {
    color-scheme: dark;
    --bg: #0f172a;
    --panel: #111827;
    --panel-2: #1f2937;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --border: #334155;
    --accent: #60a5fa;
    --accent-2: #34d399;
    --warning: #fbbf24;
    --danger: #fb7185;
    --shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }
body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 20px;
    transition: background 0.2s ease, color 0.2s ease;
}

.container {
    max-width: 900px;
    margin: auto;
    background: var(--panel);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

h1 { margin: 0; font-size: 1.6rem; }

.toolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

button, input, select, textarea {
    font: inherit;
}

button {
    border: none;
    border-radius: 8px;
    padding: 10px 12px;
    cursor: pointer;
    color: white;
    transition: transform 0.16s ease, opacity 0.16s ease;
}

button:hover { transform: translateY(-1px); }

.primary-btn { background: var(--accent); }
.secondary-btn { background: var(--accent-2); }
.warning-btn { background: var(--warning); color: #111827; }
.danger-btn { background: var(--danger); }

.course-card {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto auto;
    gap: 10px;
    align-items: center;
    padding: 12px;
    margin-bottom: 12px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 10px;
}

input, select, textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--panel);
    color: var(--text);
}

textarea {
    min-height: 110px;
    resize: vertical;
    margin-top: 8px;
}

.actions-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.result-card {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-top: 16px;
}

.result-card:empty {
    display: none;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.summary-item {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
}

.summary-item strong {
    display: block;
    font-size: 1.15rem;
    margin-top: 4px;
}

.small-text { color: var(--muted); font-size: 0.92rem; }

.course-breakdown {
    margin: 12px 0 0;
    padding-left: 18px;
}

.course-breakdown li {
    margin-bottom: 6px;
}

.import-export {
    margin-top: 12px;
    display: none;
}

.import-export.open { display: block; }

footer {
    margin-top: 24px;
    text-align: center;
    color: var(--muted);
    font-size: 0.95rem;
}

@media (max-width: 700px) {
    .course-card {
        grid-template-columns: 1fr;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
    }
}

.planner-section {
    margin-top: 24px;
    display: grid;
    gap: 16px;
}

.planner-card {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.planner-card h2 { margin: 0 0 4px; font-size: 1.25rem; }

.planner-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.planner-fields label {
    display: block;
    margin-bottom: 4px;
}

.planner-output {
    margin-top: 12px;
    padding: 12px;
    border-radius: 10px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
}

.planner-output.good { border-left-color: var(--accent-2); }
.planner-output.warn { border-left-color: var(--warning); }
.planner-output.bad { border-left-color: var(--danger); }
.planner-output p { margin: 6px 0 0; }

.whatif-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 10px;
    align-items: center;
    margin-top: 10px;
}

.delta-up { color: var(--accent-2); }
.delta-down { color: var(--danger); }

@media (max-width: 700px) {
    .whatif-row { grid-template-columns: 1fr; }
}

.semester-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 16px;
}

.semester-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.semester-header .semester-name {
    flex: 1 1 200px;
    font-weight: bold;
}

.semester-stats { flex: 1 1 160px; }

.semester-chart {
    margin-top: 12px;
    display: grid;
    gap: 10px;
}

.semester-bar-row {
    display: grid;
    grid-template-columns: minmax(90px, 160px) 1fr;
    gap: 10px;
    align-items: center;
}

.semester-bar-track {
    display: grid;
    gap: 3px;
}

.semester-bar {
    height: 14px;
    border-radius: 0 4px 4px 0;
    background: var(--accent);
    min-width: 2px;
}

.semester-bar.cumulative { background: var(--accent-2); height: 8px; }

.chart-legend {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.chart-legend span::before {
    content: "";
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    margin-right: 6px;
    background: var(--accent);
}

.chart-legend span.cumulative::before { background: var(--accent-2); }