/* =========================================================
   Beitragsrechner für Selbstständige - services.hwk-berlin.de/beitragsrechner/
   Gestaltung aus assistenten.zdh.de/beitragsrechner.php (dort bereits HWK-Design) übernommen,
   Farben aus css/style.css (--hwk-*). Kopf, Fuß, Schrift und Buttons (.btn, .btn-primary,
   .btn-block) kommen aus css/style.css. Alle Regeln unter .br-app.
   Developed by Toni Sciacca - mail@tonisciacca.com
   ========================================================= */

.br-app { display: block; width: 100%; color: var(--hwk-black); }
.br-app h1, .br-app h3, .br-app h4, .br-app p { margin: 0; padding: 0; }

/* ---------- Kopfband (wie Resilienz-Check) ---------- */
.br-hero { background: linear-gradient(135deg, var(--hwk-blue-dark) 0%, var(--hwk-blue-light) 100%); color: #fff; padding: 28px 24px 30px; }
.br-hero-inner { max-width: 960px; margin: 0 auto; }
.br-hero-kicker {
    display: inline-flex; align-items: center; gap: 7px;
    background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.35);
    border-radius: 999px; padding: 5px 13px; font-size: 13px; font-weight: 600; margin-bottom: 12px;
}
.br-app .br-hero h1 { color: #fff; font-size: 28px; line-height: 1.2; margin-bottom: 8px; }
.br-app .br-hero p { color: rgba(255,255,255,.94); font-size: 16px; }

.br-app .main-container { max-width: 960px; margin: 0 auto; padding: 24px 16px 8px; }

/* ---------- Karte ---------- */
.br-app .card { background: #fff; box-shadow: var(--shadow-default); margin-bottom: 24px; }
.br-app .card-header { padding: 16px 20px; border-bottom: 1px solid var(--hwk-blue-light-25); display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 600; color: var(--hwk-blue-dark); flex-wrap: wrap; }
.br-app .card-header i { color: var(--hwk-blue-light); font-size: 18px; }
.br-app .card-body { padding: 24px; }
.br-app .badge { background: var(--hwk-blue-dark); color: #fff; padding: 4px 10px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; margin-left: auto; }

.br-app .info-box { background: #f2f8ff; border-left: 4px solid var(--hwk-blue-dark); padding: 14px 18px; margin-bottom: 20px; }
.br-app .info-box p { color: var(--hwk-blue-dark); font-size: 14px; line-height: 1.5; }

/* ---------- Formular ---------- */
.br-app .form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); gap: 20px; }
.br-app .form-group { margin-bottom: 16px; }
.br-app .form-label { display: block; font-size: 14px; font-weight: 600; color: var(--hwk-grey-dark); margin-bottom: 6px; }
.br-app .form-label .required { color: var(--hwk-red-dark); margin-left: 2px; }
.br-app .form-hint { font-size: 12px; color: var(--hwk-grey-dark); margin-top: 4px; }
.br-app .form-input, .br-app .form-select {
    width: 100%; padding: 10px 14px; font-size: 16px; border: 1px solid var(--hwk-blue-light-25);
    border-radius: 0; background: #fff; font-family: inherit; color: var(--hwk-black);
}
.br-app .form-input:focus, .br-app .form-select:focus { outline: none; border-color: var(--hwk-blue-light); box-shadow: 0 0 0 2px var(--hwk-blue-light-25); }
.br-app .input-euro { position: relative; }
.br-app .input-euro::after { content: '€'; position: absolute; right: 14px; top: 50%; transform: translateY(-50%); font-weight: 600; color: var(--hwk-grey); }
.br-app .input-euro input { padding-right: 36px; }

.br-app .checkbox-item {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    border: 1px solid var(--hwk-blue-light-25); cursor: pointer; background: #fff; transition: border-color .2s, background .2s;
}
.br-app .checkbox-item:hover { border-color: var(--hwk-blue-light); background: #f8fbff; }
.br-app .checkbox-item.checked { border-color: var(--hwk-blue-light); background: #f2f8ff; }
.br-app .checkbox-item input[type="checkbox"] { width: 18px; height: 18px; cursor: pointer; accent-color: var(--hwk-blue-dark); flex-shrink: 0; }
.br-app .checkbox-item span { font-size: 15px; }
.br-app .btn-block { margin-top: 4px; }

/* ---------- Ergebnis ---------- */
.br-app .ergebnis-container { display: none; margin-top: 24px; padding-top: 24px; border-top: 2px solid var(--hwk-blue-light-25); animation: brEinblenden .4s ease; }
.br-app .ergebnis-container.visible { display: block; }
@keyframes brEinblenden { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }
.br-app .ergebnis-header { text-align: center; margin-bottom: 20px; }
.br-app .ergebnis-header h3 { font-size: 20px; color: var(--hwk-blue-dark); display: flex; align-items: center; justify-content: center; gap: 8px; }
.br-app .ergebnis-header h3 i { color: var(--hwk-blue-light); }

.br-app .kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 20px; }
.br-app .kpi-card { background: #fff; border: 1px solid var(--hwk-blue-light-25); border-top: 4px solid var(--hwk-blue-dark); padding: 16px; text-align: center; }
.br-app .kpi-card.highlight { border-color: var(--hwk-green-dark); background: #e7f4d9; }
.br-app .kpi-label { font-size: 12px; color: var(--hwk-grey-dark); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; font-weight: 700; }
.br-app .kpi-value { font-size: 22px; font-weight: 700; color: var(--hwk-blue-dark); }
.br-app .kpi-card.highlight .kpi-value { color: var(--hwk-green-dark); }
.br-app .kpi-sub { font-size: 12px; color: var(--hwk-grey-dark); margin-top: 4px; }

.br-app .btn-toggle {
    background: #fff; border: 1px solid var(--hwk-blue-light); color: var(--hwk-blue-dark);
    padding: 10px 18px; cursor: pointer; font-size: 15px; font-weight: 600; font-family: inherit;
    display: flex; align-items: center; gap: 8px; margin: 16px auto;
}
.br-app .btn-toggle:hover { background: var(--hwk-blue-light); color: #fff; }
.br-app .details-content { display: none; margin-top: 20px; }
.br-app .details-content.visible { display: block; }

.br-app .chart-table-row { display: grid; grid-template-columns: 260px 1fr; gap: 24px; align-items: start; }
.br-app .chart-container { background: #fff; border: 1px solid var(--hwk-blue-light-25); padding: 16px; text-align: center; }
.br-app .chart-container h4 { font-size: 14px; color: var(--hwk-blue-dark); margin-bottom: 12px; display: flex; align-items: center; justify-content: center; gap: 6px; }
.br-app .chart-container h4 i { color: var(--hwk-blue-light); }
.br-app .chart-canvas-wrapper { position: relative; width: 200px; height: 200px; margin: 0 auto; }
.br-app .chart-center-text { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; pointer-events: none; }
.br-app .chart-center-text .amount { font-size: 17px; font-weight: 700; color: var(--hwk-black); }
.br-app .chart-center-text .label { font-size: 11px; color: var(--hwk-grey-dark); text-transform: uppercase; }
.br-app .chart-legend { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.br-app .legend-item { display: flex; align-items: center; gap: 8px; font-size: 13px; text-align: left; }
.br-app .legend-color { width: 12px; height: 12px; flex-shrink: 0; }
.br-app .legend-label { flex: 1; color: var(--hwk-grey-dark); }
.br-app .legend-value { font-weight: 600; }

.br-app .calc-table-wrap { overflow-x: auto; }
.br-app .calc-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.br-app .calc-table th { background: var(--hwk-blue-dark); color: #fff; padding: 10px 14px; text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.br-app .calc-table th:last-child { text-align: right; }
.br-app .calc-table td { padding: 10px 14px; border-bottom: 1px solid var(--hwk-blue-light-25); }
.br-app .calc-table td:last-child { text-align: right; font-weight: 500; white-space: nowrap; }
.br-app .calc-table .percent { color: var(--hwk-grey-dark); font-size: 13px; }
.br-app .calc-table .total-row { background: #f2f8ff; font-weight: 600; }

.br-app .hinweis-box { background: #e7f4d9; border-left: 4px solid var(--hwk-green-dark); padding: 14px 18px; margin-top: 20px; }
.br-app .hinweis-box h4 { color: var(--hwk-green-dark); font-size: 15px; margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.br-app .hinweis-box p { color: var(--hwk-black); font-size: 14px; line-height: 1.5; }

.br-app .footer-info { text-align: center; padding: 16px 0 0; font-size: 12px; color: var(--hwk-grey-dark); border-top: 1px solid var(--hwk-blue-light-25); margin-top: 20px; }

@media (max-width: 700px) { .br-app .chart-table-row { grid-template-columns: 1fr; } }
@media (max-width: 600px) {
    .br-hero { padding: 22px 16px; }
    .br-app .br-hero h1 { font-size: 22px; }
    .br-app .card-body { padding: 16px; }
    .br-app .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .br-app .kpi-value { font-size: 18px; }
    .br-app .kpi-label { text-transform: none; letter-spacing: 0; hyphens: auto; overflow-wrap: anywhere; }
}