/* LED-Rechner — site-specific styles */
main { max-width: 960px; }
.hero { margin-bottom: 1.5rem; }
.hero p { font-size: 1.1rem; max-width: 700px; }
.hero .price-note { font-size: 0.85rem; color: var(--color-muted); margin-top: 0.25rem; }

/* Form card */
.form-card {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}
.form-group { margin-bottom: 1rem; }
.form-group:last-child { margin-bottom: 0; }
.form-group label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 0.375rem; }
.form-group .hint { font-size: 0.75rem; color: var(--color-muted); margin-top: 0.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
@media (max-width: 640px) { .form-row-3 { grid-template-columns: 1fr; } }
.input-unit { position: relative; }
.input-unit input { padding-right: 3.5rem; }
.input-unit .unit { position: absolute; right: 0.75rem; top: 50%; transform: translateY(-50%); color: var(--color-muted); font-size: 0.8rem; pointer-events: none; }
.form-actions { display: flex; gap: 0.5rem; margin-top: 1rem; flex-wrap: wrap; }
.form-actions button { font-size: 0.85rem; padding: 0.625rem 1rem; }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: var(--color-border); }

/* Result cards */
.result-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.result-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 1rem; text-align: center;
    box-shadow: var(--shadow-sm);
}
.result-card .value { font-size: 1.5rem; font-weight: 700; color: var(--color-primary); line-height: 1.2; }
.result-card .label { font-size: 0.7rem; color: var(--color-muted); margin-top: 0.25rem; }
.result-card.highlight { border-color: var(--color-primary); background: var(--color-primary-soft); }
@media (prefers-color-scheme: dark) { .result-card.highlight { background: var(--color-primary-soft); } }
.result-card.savings .value { color: #16a34a; }
@media (prefers-color-scheme: dark) { .result-card.savings .value { color: #4ade80; } }

/* Bar comparison */
.bar-comparison { margin: 1.5rem 0; }
.bar-comparison .bar-row {
    display: flex; align-items: center; gap: 0.75rem;
    margin-bottom: 0.75rem;
}
.bar-comparison .bar-label { width: 80px; font-size: 0.85rem; font-weight: 600; flex-shrink: 0; }
.bar-comparison .bar-track {
    flex: 1; height: 32px; background: var(--color-border); border-radius: 4px; overflow: hidden; position: relative;
}
.bar-comparison .bar-fill {
    height: 100%; border-radius: 4px; transition: width 0.4s ease;
    display: flex; align-items: center; justify-content: flex-end; padding-right: 0.5rem;
    font-size: 0.8rem; font-weight: 700; color: #fff; min-width: 60px;
}
.bar-comparison .bar-fill.old { background: #dc2626; }
.bar-comparison .bar-fill.led { background: #16a34a; }
@media (prefers-color-scheme: dark) {
    .bar-comparison .bar-fill.old { background: #ef4444; }
    .bar-comparison .bar-fill.led { background: #22c55e; }
}
.bar-comparison .bar-savings {
    text-align: center; font-size: 0.9375rem; color: #16a34a; font-weight: 600; margin-top: 0.25rem;
}
@media (prefers-color-scheme: dark) { .bar-comparison .bar-savings { color: #4ade80; } }

/* Lumen table */
.lumen-table { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: 0.875rem; }
.lumen-table th { text-align: left; font-weight: 600; padding: 0.625rem 0.75rem; border-bottom: 2px solid var(--color-border); font-size: 0.8rem; color: var(--color-muted); }
.lumen-table td { padding: 0.625rem 0.75rem; border-bottom: 1px solid var(--color-border); }
.lumen-table tr:last-child td { border-bottom: none; }
.lumen-table .led-col { color: #16a34a; font-weight: 600; }
@media (prefers-color-scheme: dark) { .lumen-table .led-col { color: #4ade80; } }

/* Example cards */
.example-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
@media (max-width: 640px) { .example-grid { grid-template-columns: 1fr; } }
.example-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 1.25rem; cursor: pointer;
    transition: border-color 0.15s; box-shadow: var(--shadow-sm);
}
.example-card:hover { border-color: var(--color-primary); }
.example-card h3 { font-size: 0.9375rem; margin-bottom: 0.375rem; }
.example-card p { font-size: 0.8rem; margin-bottom: 0; }
.example-card .example-savings { color: #16a34a; font-weight: 700; font-size: 0.9375rem; margin-top: 0.5rem; }
@media (prefers-color-scheme: dark) { .example-card .example-savings { color: #4ade80; } }

/* So rechnen wir */
.calc-explain {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 1.5rem; margin-top: 1rem;
    font-size: 0.875rem; line-height: 1.7;
}
.calc-explain .formula { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--color-primary); background: var(--color-primary-soft); padding: 0.25rem 0.5rem; border-radius: 3px; display: inline-block; margin: 0.25rem 0; }

/* Content sections */
.content-section { margin-top: 2.5rem; }
.content-section h2 { margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--color-border); }

/* Accordion / FAQ */
.accordion details { border: 1px solid var(--color-border); border-radius: var(--radius); margin-bottom: 0.5rem; }
.accordion summary { padding: 1rem 1.25rem; font-weight: 600; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "\25B8"; transition: transform 0.2s; font-size: 0.875rem; color: var(--color-muted); }
.accordion details[open] summary::after { transform: rotate(90deg); }
.accordion .accordion-body { padding: 0 1.25rem 1.25rem; font-size: 0.9rem; line-height: 1.6; color: var(--color-muted); }

/* Related tools */
.related-tools { display: grid; gap: 1rem; margin-top: 1rem; }
@media (min-width: 640px) { .related-tools { grid-template-columns: 1fr 1fr 1fr; } }
.related-tool-card { display: block; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.25rem; text-decoration: none; transition: border-color 0.15s; }
.related-tool-card:hover { border-color: var(--color-primary); text-decoration: none; }
.related-tool-card h3 { font-size: 0.9375rem; color: var(--color-text); margin-bottom: 0.375rem; }
.related-tool-card p { font-size: 0.8rem; margin-bottom: 0; }

/* Sticky bar (mobile) */
.sticky-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: var(--color-surface); border-top: 2px solid var(--color-primary); padding: 0.75rem 1rem; z-index: 100; box-shadow: 0 -4px 12px rgba(0,0,0,0.1); }
.sticky-bar.visible { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.sticky-bar .sticky-values { display: flex; gap: 1rem; flex: 1; }
.sticky-bar .sticky-metric { text-align: center; }
.sticky-bar .sticky-metric .value { font-size: 1rem; font-weight: 700; color: var(--color-primary); }
.sticky-bar .sticky-metric .label { font-size: 0.6rem; color: var(--color-muted); text-transform: uppercase; }
.sticky-bar button { font-size: 0.75rem; padding: 0.5rem 0.75rem; flex-shrink: 0; }
@media (min-width: 768px) { .sticky-bar { display: none !important; } }

/* Toast */
.toast { position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%) translateY(120%); background: var(--color-text); color: var(--color-bg); padding: 0.75rem 1.5rem; border-radius: var(--radius); font-size: 0.875rem; font-weight: 600; opacity: 0; transition: transform 0.3s, opacity 0.3s; z-index: 200; pointer-events: none; }
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
@media (max-width: 767px) { .toast { bottom: 5rem; } }

/* Print */
@media print { .sticky-bar, .form-actions, .toast { display: none !important; } body { background: #fff; color: #000; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } }