:root {
    --color-bg: #f6f7fb;
    --color-surface: #ffffff;
    --color-surface-alt: #f1f3f9;
    --color-border: #e7e9f2;
    --color-text: #14161f;
    --color-text-muted: #6b7085;
    --color-primary: #4f46e5;
    --color-primary-dark: #4338ca;
    --color-primary-soft: #eef2ff;
    --color-danger: #dc2626;
    --color-danger-soft: #fef2f2;
    --color-success: #059669;
    --color-success-soft: #ecfdf5;
    --color-warning: #d97706;
    --color-warning-soft: #fffbeb;
    --color-purple: #7c3aed;
    --color-purple-soft: #f5f3ff;
    --radius: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);
    --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .04);
    --sidebar-width: 220px;
}

* { box-sizing: border-box; }

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

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

.app-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #14162a 0%, #0d0f1c 100%);
    color: #cbd0e6;
    padding: 20px 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}
.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 17px;
    padding: 0 20px 20px;
    color: #fff;
    margin-bottom: 8px;
}
.sidebar nav { padding: 4px 10px; flex: 1; }
.sidebar nav .nav-label {
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: #565c7c;
    padding: 14px 10px 6px;
}
.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    color: #b4b9d6;
    font-size: 13.5px;
    border-radius: 8px;
    margin-bottom: 2px;
    position: relative;
}
.sidebar nav a .ic { font-size: 15px; width: 18px; text-align: center; flex-shrink: 0; opacity: .9; }
.sidebar nav a:hover {
    background: rgba(255, 255, 255, .06);
    color: #fff;
    text-decoration: none;
}
.sidebar nav a.active {
    background: rgba(79, 70, 229, .25);
    color: #fff;
}
.sidebar nav a.active::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 8px;
    bottom: 8px;
    width: 3px;
    background: #818cf8;
    border-radius: 2px;
}
.sidebar .user-box {
    margin-top: 12px;
    padding: 12px 20px;
    border-top: 1px solid rgba(255, 255, 255, .08);
    font-size: 12.5px;
    color: #9ca3af;
}

.main { flex: 1; padding: 24px 32px; max-width: 1400px; }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}
.page-header h1 { font-size: 20px; margin: 0; letter-spacing: -.01em; }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 18px 20px;
    margin-bottom: 20px;
}

/* Ein <details class="card"> statt <div class="card"> nutzt dieselbe
   Karten-Optik, laesst sich aber ein-/zuklappen - fuer Bearbeiten-Seiten
   mit vielen sekundaeren Abschnitten (Kunde, Ansprechpartner, Verträge...),
   die sonst alle auf einmal weit nach unten scrollen wuerden. */
.card > summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
}
.card > summary::-webkit-details-marker { display: none; }
.card > summary::after {
    content: '▸';
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 400;
    transition: transform .15s;
    flex-shrink: 0;
}
.card[open] > summary::after { transform: rotate(90deg); }
.card > summary + * { margin-top: 14px; }

/* Dedizierte, volle Breite nutzende Bearbeiten-Seite (z.B. Kunden-Detail):
   Kopfzeile mit Zurueck-Link/Titel links und Aktionen rechts, darunter ein
   zweispaltiges Grid statt einer schmalen Sidebar, damit sekundaere
   Abschnitte nicht mehr weit nach unten scrollen muessen. */
.detail-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.detail-header h1 { margin: 0; font-size: 22px; letter-spacing: -.01em; }
.detail-header .actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    align-items: start;
}
.detail-grid .span-2 { grid-column: 1 / -1; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 16px 18px;
}
.stat-card .num { font-size: 26px; font-weight: 700; letter-spacing: -.02em; }
.stat-card .label { color: var(--color-text-muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }
.stat-card.overdue .num { color: var(--color-danger); }

.stat-card .icon-badge {
    width: 38px; height: 38px; border-radius: 11px;
    display: flex; align-items: center; justify-content: center;
    font-size: 17px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--color-text-muted); font-weight: 600; }
tr.ticket-row:hover { background: var(--color-surface-alt); cursor: pointer; }
tr.ticket-row.overdue td.due { color: var(--color-danger); font-weight: 600; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 600;
    white-space: nowrap;
}
.badge-status-open { background: var(--color-primary-soft); color: var(--color-primary-dark); }
.badge-status-pending { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-status-waiting_customer { background: var(--color-purple-soft); color: var(--color-purple); }
.badge-status-solved { background: var(--color-success-soft); color: var(--color-success); }
.badge-status-closed { background: var(--color-surface-alt); color: var(--color-text-muted); }

.badge-prio-low { background: var(--color-surface-alt); color: var(--color-text-muted); }
.badge-prio-normal { background: var(--color-primary-soft); color: var(--color-primary-dark); }
.badge-prio-high { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-prio-urgent { background: var(--color-danger-soft); color: var(--color-danger); }

.badge-source { background: var(--color-surface-alt); color: var(--color-text-muted); }

.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}
.btn:hover { background: var(--color-surface-alt); text-decoration: none; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; box-shadow: 0 1px 2px rgba(79, 70, 229, .3); }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-danger { background: var(--color-danger); border-color: var(--color-danger); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 13px; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 200px; }

input[type=text], input[type=email], input[type=password], input[type=tel],
input[type=number], input[type=date], input[type=search], select, textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: var(--color-text);
}
textarea { resize: vertical; min-height: 90px; }
input:focus, select:focus, textarea:focus { outline: 2px solid #c7d2fe; border-color: var(--color-primary); }

.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: end; }
.filters .form-group { margin-bottom: 0; min-width: 150px; }

.flash { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13.5px; }
.flash-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.flash-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.flash-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--color-bg);
}
.login-box { width: 340px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 32px; }
.login-box h1 { font-size: 18px; margin-top: 0; }

.thread { display: flex; flex-direction: column; gap: 14px; }
.msg {
    border-radius: var(--radius);
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    background: #fff;
    box-shadow: var(--shadow-sm);
}
.msg-in { border-left: 4px solid var(--color-primary); }
.msg-out { border-left: 4px solid var(--color-success); background: #f0fdf4; }
.msg-note { border-left: 4px solid var(--color-warning); background: #fffbeb; }
.msg-meta { font-size: 12.5px; color: var(--color-text-muted); margin-bottom: 8px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px; }
.msg-body { white-space: pre-wrap; word-wrap: break-word; line-height: 1.5; }
.msg-attachments { margin-top: 10px; font-size: 13px; }
.msg-attachments a { margin-right: 10px; }

.meta-panel dl { display: grid; grid-template-columns: 110px 1fr; row-gap: 8px; column-gap: 8px; margin: 0; font-size: 13.5px; }
.meta-panel dt { color: var(--color-text-muted); }

.two-col { display: flex; gap: 24px; align-items: flex-start; flex-wrap: wrap; }
.two-col .col-main { flex: 2; min-width: 320px; }
.two-col .col-side { flex: 1; min-width: 240px; }

.text-muted { color: var(--color-text-muted); }
.small { font-size: 12.5px; }
.mb-0 { margin-bottom: 0; }
.mt-16 { margin-top: 16px; }

.pagination { display: flex; gap: 6px; margin-top: 16px; }
.pagination a, .pagination span { padding: 6px 11px; border: 1px solid var(--color-border); border-radius: 6px; }
.pagination .active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.color-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; }

/* ---------------------------------------------------------------------
   Mobile: verhindert horizontales Scrollen der ganzen Seite (einzelne
   Elemente wie Tabellen duerfen trotzdem lokal scrollen, siehe unten).
--------------------------------------------------------------------- */
html, body { overflow-x: hidden; }

/* Tabellen mit vielen Spalten (Ticketliste, Aktivitaets-Log, etc.) auf
   schmalen Bildschirmen horizontal scrollbar machen, statt die ganze
   Seite zu sprengen. Funktioniert ohne Aenderungen an den Templates,
   da <table> als Block-Scrollcontainer fungiert, die inneren Zeilen/
   Zellen aber ihr normales Tabellen-Layout behalten. */
@media (max-width: 800px) {
    table {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }
    thead, tbody, tr { display: table; width: 100%; table-layout: auto; }
}

@media (max-width: 800px) {
    .app-layout { flex-direction: column; }
    .sidebar {
        width: 100%;
        padding: 0;
        position: sticky;
        top: 0;
        z-index: 10;
    }
    .sidebar .brand { display: none; }
    .sidebar nav {
        display: flex;
        padding: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .sidebar nav::-webkit-scrollbar { display: none; }
    .sidebar nav .nav-label { display: none; }
    .sidebar nav a {
        padding: 12px 14px;
        font-size: 13px;
        white-space: nowrap;
        flex-shrink: 0;
        border-radius: 0;
        margin-bottom: 0;
    }
    .sidebar nav a.active::before { display: none; }
    .sidebar .user-box {
        margin-top: 0;
        padding: 8px 14px;
        border-top: none;
        border-bottom: 1px solid #1f2937;
    }
    .sidebar .user-box br { display: none; }
    .sidebar .user-box a { margin-left: 10px; }
    .main { padding: 14px; }

    .page-header h1 { font-size: 17px; }

    /* Formularelemente: Mindestschriftgroesse 16px, sonst zoomt iOS
       Safari beim Fokussieren automatisch in das Feld hinein. */
    input[type=text], input[type=email], input[type=password], input[type=tel],
    input[type=number], input[type=date], input[type=search], select, textarea {
        font-size: 16px;
        padding: 10px 12px;
    }

    .btn { padding: 10px 16px; font-size: 15px; }

    /* Filter-/Formularzeilen auf schmalen Screens je Element eine
       volle Zeile geben statt viele schmale Spalten. */
    .filters .form-group, .form-row .form-group { min-width: 100%; }

    .two-col .col-main, .two-col .col-side { min-width: 100%; flex-basis: 100%; }

    .stat-grid { grid-template-columns: repeat(2, 1fr); }

    .meta-panel dl { grid-template-columns: 100px 1fr; font-size: 13px; }

    .msg { padding: 12px; }
    .msg-meta { font-size: 12px; }
}

@media (max-width: 420px) {
    .stat-grid { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------------
   Kanban-Board
--------------------------------------------------------------------- */
.kanban-board {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 8px;
    align-items: flex-start;
}
.kanban-col {
    background: var(--color-surface-alt, var(--color-bg));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg, var(--radius));
    flex: 0 0 260px;
    max-height: calc(100vh - 200px);
    display: flex;
    flex-direction: column;
}
.kanban-col-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    font-weight: 600;
    font-size: 13.5px;
    border-bottom: 1px solid var(--color-border);
}
.kanban-count {
    background: var(--color-surface);
    border-radius: 999px;
    padding: 1px 9px;
    font-size: 12px;
    color: var(--color-text-muted);
}
.kanban-col-body {
    padding: 10px;
    overflow-y: auto;
    flex: 1;
    min-height: 80px;
}
.kanban-col-body.drag-over {
    background: var(--color-primary-soft, #eef2ff);
}
.kanban-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm, none);
    padding: 10px 12px;
    margin-bottom: 10px;
    cursor: grab;
}
.kanban-card:hover { box-shadow: var(--shadow, 0 1px 3px rgba(0,0,0,.08)); }
.kanban-card.overdue { border-left: 3px solid var(--color-danger); }
.kanban-card-title { font-size: 13px; font-weight: 600; margin-bottom: 4px; }

@media (max-width: 800px) {
    .kanban-col { flex: 0 0 82vw; max-height: none; }
}

@media (max-width: 800px) {
    .detail-grid { grid-template-columns: 1fr; }
    .detail-header { flex-direction: column; }
}