html { font-size: 14px; }

:root {
    --bg: #f5f6f8;
    --panel: #ffffff;
    --border: #e0e2e7;
    --text: #1f2430;
    --muted: #6b7280;
    --primary: #1f497d;
    --primary-dark: #17365a;
    --danger: #b3261e;
    --radius: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.topbar {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 7px 18px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.brand-logo { height: 24px; display: block; }

.topbar nav { display: flex; gap: 14px; flex: 1; flex-wrap: wrap; }
.topbar nav a {
    text-decoration: none;
    color: var(--muted);
    padding: 5px 3px;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    font-size: 0.92rem;
}
.topbar nav a.active, .topbar nav a:hover { color: var(--text); border-color: var(--primary); }

.user { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.user a { color: var(--muted); }

.content { max-width: 1280px; margin: 0 auto; padding: 16px; }

h1 { margin-top: 0; font-size: 1.4rem; }
h2 { font-size: 1rem; }
h3 { font-size: 0.95rem; }

.cards { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 14px;
    min-width: 140px;
    flex: 1;
}
.card-value { font-size: 1.4rem; font-weight: 700; }
.card-label { color: var(--muted); font-size: 0.78rem; margin-top: 2px; }

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    margin-bottom: 14px;
}
.panel h2 { margin-top: 0; font-size: 1rem; }

.table-wrap { width: 100%; overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; background: var(--panel); }
.table th, .table td {
    text-align: left;
    padding: 5px 8px;
    border-bottom: 1px solid var(--border);
    font-size: 0.82rem;
    white-space: nowrap;
}
.table th { color: var(--muted); font-weight: 600; }
/* Für Spalten mit potenziell langem Inhalt (z.B. Firmenname) - bricht um
   statt die ganze Tabelle über den Viewport hinaus zu verbreitern. */
.table td.wrap, .table th.wrap { white-space: normal; max-width: 260px; }

.form { display: flex; flex-direction: column; gap: 8px; max-width: 640px; }
.form label { display: flex; flex-direction: column; gap: 2px; font-size: 0.85rem; color: var(--muted); flex: 1; }
.form input, .form select, .form textarea {
    padding: 5px 8px;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 0.92rem;
    color: var(--text);
    font-family: inherit;
}
.form .row { display: flex; gap: 10px; flex-wrap: wrap; }
.form .checkbox { flex-direction: row; align-items: center; }
.form .checkbox input { width: auto; }
.hint { color: var(--muted); font-size: 0.8rem; }
.success { color: var(--primary-dark); }
.error { color: var(--danger); }

.button {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 6px 13px;
    border-radius: 6px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 0.85rem;
}
.button:hover { background: var(--primary-dark); }
.button.secondary { background: var(--panel); color: var(--text); border: 1px solid var(--border); }
.button.danger { background: var(--danger); }

.link-danger {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 0;
    font-size: 0.82rem;
    text-decoration: underline;
}

.badge { padding: 1px 7px; border-radius: 12px; font-size: 0.75rem; background: #eee; white-space: nowrap; }
.badge-open { background: #fff3cd; color: #7a5b00; }
.badge-paid { background: #d7e6f0; color: var(--primary-dark); }
.badge-cancelled { background: #f1d9d7; color: var(--danger); }

.totals { text-align: right; font-size: 0.92rem; }
.totals p { margin: 4px 0; }

/* Kundenverwaltung: Master-Detail wie in der alten Access-Maske - Liste
   bewusst breiter (auch lange Firmennamen ohne Umbruch lesbar) und
   kompakter (kleinere Schrift/Zeilen -> mehr Kunden ohne Scrollen sichtbar). */
.split-view { display: flex; gap: 16px; align-items: flex-start; }
.customer-nav {
    width: 340px;
    flex-shrink: 0;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px;
}
.customer-list { list-style: none; margin: 0; padding: 0; max-height: 75vh; overflow-y: auto; }
.customer-list li a {
    display: block;
    padding: 5px 8px;
    border-radius: 6px;
    color: var(--text);
    text-decoration: none;
    font-size: 0.8rem;
    line-height: 1.3;
}
.customer-list li a:hover { background: var(--bg); }
.customer-list li a.active { background: var(--primary); color: #fff; }
.customer-detail { flex: 1; min-width: 0; }

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
}
.login-box {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: 320px;
    text-align: center;
}
.login-logo { max-width: 220px; margin-bottom: 16px; }
.login-box h1 { font-size: 1.3rem; margin-top: 0; }
.login-box form { display: flex; flex-direction: column; gap: 14px; text-align: left; }
.login-box label { display: flex; flex-direction: column; gap: 4px; font-size: 0.9rem; color: var(--muted); }
.login-box input {
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
}
.login-box button {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
}

@media (max-width: 800px) {
    .split-view { flex-direction: column; }
    .customer-nav { width: 100%; }
    .customer-list { max-height: 240px; }
}

@media (max-width: 600px) {
    .content { padding: 16px; }
    .form .row { flex-direction: column; }
}