:root {
    /* Dorstener Arbeit gGmbH – CI-Annäherung.
       Quelle: msapplication-TileColor der Website (#2b5797) als verlässlichster
       greifbarer Markenfarbwert; exaktes Corporate-Design-Handbuch der DA lag
       nicht vor. Bei Abweichung: nur diese Variablen anpassen, der Rest der
       Anwendung referenziert ausschließlich diese zentrale Stelle. */
    --color-primary: #2b5797;
    --color-primary-light: #3d6fb5;
    --color-accent: #4a8c3f;
    --color-bg: #f4f6f8;
    --color-surface: #ffffff;
    --color-border: #d8dee3;
    --color-text: #1f2933;
    --color-text-muted: #5c6b7a;
    --color-rot: #d64545;
    --color-rot-bg: #fbe5e5;
    --color-gelb: #c98a1c;
    --color-gelb-bg: #fbf0dc;
    --color-gruen: #2f8a4f;
    --color-gruen-bg: #e4f4e9;
    --radius: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 14px;
    line-height: 1.5;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Topbar --- */
.topbar {
    background: var(--color-primary);
    color: #fff;
}
.topbar-inner {
    width: 100%; max-width: 2000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 0 clamp(16px,3vw,40px);
    height: 56px;
}
.brand { color: #fff; font-weight: 600; font-size: 16px; display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 32px; width: 32px; display: block; }
.brand:hover { text-decoration: none; }
.mainnav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.mainnav a {
    color: #cfe0ec;
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 13.5px;
}
.mainnav a:hover { background: var(--color-primary-light); text-decoration: none; color: #fff; }
.mainnav a.active { background: var(--color-accent); color: #fff; }
.usermenu { display: flex; align-items: center; gap: 12px; font-size: 13px; color: #cfe0ec; white-space: nowrap; }
.btn-logout { color: #fff; border: 1px solid rgba(255,255,255,0.4); padding: 5px 10px; border-radius: var(--radius); }
.btn-logout:hover { background: rgba(255,255,255,0.15); text-decoration: none; }

/* --- Layout --- */
.content { width: 100%; max-width: 2000px; margin: 0 auto; padding: 24px clamp(16px,3vw,40px) 60px; }
.footer { border-top: 1px solid var(--color-border); margin-top: 40px; }
.footer-inner { width: 100%; max-width: 2000px; margin: 0 auto; padding: 16px clamp(16px,3vw,40px); color: var(--color-text-muted); font-size: 12px; }

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 28px 0 12px; }
.subtitle { color: var(--color-text-muted); margin-bottom: 20px; }

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

/* --- Cards / Panels --- */
.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
}
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.kpi-value { font-size: 26px; font-weight: 700; color: var(--color-primary); }
.kpi-label { color: var(--color-text-muted); font-size: 12.5px; margin-top: 2px; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 500;
}
.btn:hover { background: var(--color-primary-light); text-decoration: none; }
.btn-secondary { background: #fff; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: #f0f2f4; }
.btn-danger { background: var(--color-rot); }
.btn-danger:hover { background: #b83a3a; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }

/* --- Forms --- */
form .form-row { margin-bottom: 14px; }
label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 13px; }
input[type=text], input[type=date], input[type=number], input[type=password],
input[type=email], select, textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13.5px;
    font-family: inherit;
    background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 0; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px 20px; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.checkbox-group label { display: flex; align-items: center; gap: 6px; font-weight: 400; }
.checkbox-group input { width: auto; }
.help-text { color: var(--color-text-muted); font-size: 12px; margin-top: 3px; }

/* --- Tables --- */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--color-border); text-align: left; }
th { background: #eef1f4; font-weight: 600; color: var(--color-text-muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.02em; position: sticky; top: 0; }
tbody tr:hover { background: #f7f9fa; }
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* --- Matrix (Monatserfassung) --- */
.matrix-table th, .matrix-table td { white-space: nowrap; }
.matrix-table input[type=number] {
    width: 64px; padding: 4px 6px; text-align: right; font-size: 13px;
}
/* Mitarbeiter-Spalte klebt links */
.matrix-table .row-label { position: sticky; left: 0; background: #fff; z-index: 2; min-width: 160px; }
.matrix-table th.row-label { background: #eef1f4; z-index: 3; }
.matrix-table .gruppe-row td { background: #e3e9ee; font-weight: 700; color: var(--color-primary); }

/* Kopfzeilen bleiben beim Vertikal-Scrollen oben kleben.
   Zeile 1 (proj-head) bei top:0, Zeile 2 (col-funk) direkt darunter. */
.matrix-table thead th { position: sticky; top: 0; z-index: 4; }
.matrix-table thead tr:nth-child(1) th { height: 33px; box-sizing: border-box; }
.matrix-table thead tr:nth-child(2) th { top: 33px; }

/* Projekt-Kopf: farblich abgesetzt, weiße Trennstreifen */
.matrix-table th.proj-head {
    text-align: center; background: var(--color-primary); color: #fff;
    font-size: 12.5px; font-weight: 700; padding: 7px 6px;
    border-left: 3px solid #fff; border-right: 3px solid #fff;
    white-space: nowrap; text-transform: none; letter-spacing: 0; z-index: 5;
}
.matrix-table th.proj-head.pg-alt { background: var(--color-primary-light); }
.btn-proj-uebernahme {
    display: block; margin: 5px auto 0; padding: 2px 8px;
    font-size: 10.5px; font-weight: 600; font-family: inherit;
    background: rgba(255,255,255,.15); color: #fff;
    border: 1px solid rgba(255,255,255,.45); border-radius: 4px;
    cursor: pointer; white-space: nowrap;
}
.btn-proj-uebernahme:hover { background: rgba(255,255,255,.3); }
/* Erste Funktionsspalte eines Projekts: kräftige Trennlinie links */
.matrix-table td.proj-start, .matrix-table th.proj-start { border-left: 3px solid var(--color-primary); }
/* Getönter Hintergrund für jede zweite Projektgruppe */
.matrix-table td.pg-alt { background: #f2f6fa; }
.matrix-table tbody tr:nth-child(even) td.pg-alt { background: #e9f0f6; }
.matrix-table th.col-funk.pg-alt { background: #dde6ee; color: var(--color-primary); }
.matrix-table th.col-funk { background: #eef1f4; color: var(--color-text-muted);
    font-weight: 600; font-size: 11px; padding: 5px 4px; white-space: nowrap; z-index: 4; }
/* Projekt-Summenzeile */
.matrix-table tr.proj-sum td { background: #eef1f4; font-weight: 700;
    color: var(--color-primary); border-top: 2px solid var(--color-primary); }
/* Summenspalte am Ende */
.matrix-table td.grand-sum, .matrix-table th.grand-sum {
    border-left: 3px solid var(--color-primary); background: #eef7f1; font-weight: 700; }
/* Ecke oben-links: klebt oben UND links */
.matrix-table thead th.row-label { position: sticky; left: 0; top: 0; z-index: 7; }

/* Projekt-Filter über der Erfassungstabelle */
.erf-filterbar { display: flex; align-items: center; gap: 10px; margin: 0 0 12px; flex-wrap: wrap; }
.erf-filterbar label { display: inline; font-weight: 600; font-size: 13px; margin: 0; }
.erf-filterbar select { width: auto; min-width: 260px; padding: 6px 10px; font-weight: 600; }
.erf-filter-info { color: var(--color-text-muted); font-size: 12.5px; }

/* Scroll-Container der Erfassung: Höhe begrenzt, damit Kopf sichtbar bleibt */
.erf-scroll { overflow: auto; max-height: calc(100vh - 300px); min-height: 220px; }

/* --- Ampel / Status --- */
.ampel-rot    { background: var(--color-rot-bg); color: var(--color-rot); font-weight: 700; }
.ampel-gelb   { background: var(--color-gelb-bg); color: var(--color-gelb); font-weight: 700; }
.ampel-gruen  { background: var(--color-gruen-bg); color: var(--color-gruen); font-weight: 600; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-rot { background: var(--color-rot-bg); color: var(--color-rot); }
.badge-gelb { background: var(--color-gelb-bg); color: var(--color-gelb); }
.badge-gruen { background: var(--color-gruen-bg); color: var(--color-gruen); }
.badge-grau { background: #eceff1; color: var(--color-text-muted); }

/* --- Misc --- */
.flash { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13.5px; }
.flash-success { background: var(--color-gruen-bg); color: var(--color-gruen); border: 1px solid #bfe3cb; }
.flash-error { background: var(--color-rot-bg); color: var(--color-rot); border: 1px solid #f0bcbc; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar .spacer { flex: 1; }
.muted { color: var(--color-text-muted); }
.tag { display: inline-block; background: #eef1f4; border-radius: 4px; padding: 2px 8px; font-size: 12px; margin: 2px 3px 2px 0; }

.login-wrap { max-width: 380px; margin: 80px auto; }
.login-wrap .panel { padding: 28px; }
.login-logo { text-align: center; margin-bottom: 16px; font-weight: 700; color: var(--color-primary); font-size: 18px; }

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */
@media (min-width: 1600px) {
    .kpi-grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
}
@media (max-width: 1024px) {
    .content { padding: 20px 16px 50px; }
    h1 { font-size: 20px; }
    .kpi-value { font-size: 23px; }
}
@media (max-width: 768px) {
    body { font-size: 13.5px; }
    .topbar-inner { flex-wrap: wrap; height: auto; padding: 8px 16px; gap: 8px; }
    .brand { width: 100%; justify-content: space-between; }
    .mainnav { width: 100%; order: 3; gap: 2px; }
    .mainnav a { padding: 6px 9px; font-size: 12.5px; }
    .usermenu { order: 2; font-size: 12px; }
    .content { padding: 16px 12px 50px; }
    h1 { font-size: 18px; }
    h2 { font-size: 15px; margin: 18px 0 8px; }
    .panel { padding: 14px; }
    .kpi-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 16px; }
    .kpi-value { font-size: 21px; }
    .kpi-card { padding: 12px 14px; }
    .page-header { align-items: flex-start; }
    .form-grid { grid-template-columns: 1fr; }
    .toolbar .btn { flex: 1; text-align: center; min-width: 120px; }
    .erf-scroll { max-height: calc(100vh - 340px); }
}
@media (max-width: 480px) {
    body { font-size: 13px; }
    .brand { font-size: 15px; }
    .mainnav a { padding: 5px 8px; font-size: 12px; }
    .content { padding: 12px 10px 40px; }
    h1 { font-size: 17px; }
    .kpi-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .kpi-value { font-size: 19px; }
    .panel { padding: 12px; }
    .erf-filterbar { flex-direction: column; align-items: stretch; }
    .erf-filterbar select { min-width: 0; width: 100%; }
}
@media (hover: none) and (pointer: coarse) {
    .matrix-table input[type=number] { min-height: 34px; }
    .mainnav a { padding: 9px 12px; }
}

@media print {
    .topbar, .footer, .toolbar, .no-print { display: none !important; }
    body { background: #fff; }
}