/* =====================================================================
   knxtc-base.css
   Gemeinsame Grundlage für Staff- und User-Bereich.
   Enthält Design-Tokens, Reset, Typo, neutrale Komponenten, Utilities.
   Keine Bereichs-Farben hier — die kommen aus knxtc-staff.css / knxtc-user.css.
   Ladereihenfolge: Bootstrap 5 -> knxtc-base.css -> knxtc-<area>.css
   ===================================================================== */


/* ---------------------------------------------------------------------
   1) Design-Tokens (CSS-Variablen)
   --------------------------------------------------------------------- */
:root {
    /* Farben (neutral) */
    --knx-white:        #ffffff;
    --knx-black:        #000000;
    --knx-gray-50:      #f9fafb;
    --knx-gray-100:     #f3f4f6;
    --knx-gray-200:     #e5e7eb;
    --knx-gray-300:     #d1d5db;
    --knx-gray-400:     #9ca3af;
    --knx-gray-500:     #6b7280;
    --knx-gray-600:     #4b5563;
    --knx-gray-700:     #374151;
    --knx-gray-800:     #1f2937;
    --knx-gray-900:     #111827;

    /* Status-Farben */
    --knx-success:      #198754;
    --knx-success-dark: #146c43;
    --knx-danger:       #dc3545;
    --knx-danger-dark:  #b02a37;
    --knx-warning:      #ffc107;
    --knx-warning-dark: #cc9a06;
    --knx-info:         #0dcaf0;

    /* Platzhalter für bereichsspezifische Farben.
       Werden in knxtc-staff.css bzw. knxtc-user.css überschrieben. */
    --knx-primary:       #006699;
    --knx-primary-dark:  #004d66;
    --knx-primary-light: #e6f2ff;
    --knx-primary-rgb:   0, 102, 153;
    --knx-area-label:    '';   /* wird vom Area-Stylesheet gesetzt */

    /* Typografie */
    --knx-font-base:     -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                         "Helvetica Neue", Arial, "Noto Sans", sans-serif,
                         "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    --knx-font-mono:     ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, monospace;
    --knx-font-size-base: 16px;
    --knx-font-size-sm:   0.875rem;
    --knx-font-size-lg:   1.125rem;
    --knx-line-height:    1.5;

    /* Abstände (4/8er Rhythmus) */
    --knx-space-1:  0.25rem;
    --knx-space-2:  0.5rem;
    --knx-space-3:  0.75rem;
    --knx-space-4:  1rem;
    --knx-space-5:  1.25rem;
    --knx-space-6:  1.5rem;
    --knx-space-8:  2rem;
    --knx-space-10: 2.5rem;
    --knx-space-12: 3rem;

    /* Radien & Schatten */
    --knx-radius-sm: 4px;
    --knx-radius:    8px;
    --knx-radius-lg: 12px;
    --knx-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --knx-shadow:    0 2px 6px rgba(0,0,0,0.08);
    --knx-shadow-lg: 0 4px 16px rgba(0,0,0,0.12);

    /* Navbar */
    --knx-navbar-height: 56px;

    /* Container */
    --knx-container-max:  1200px;
    --knx-container-wide: 1600px;
}


/* ---------------------------------------------------------------------
   2) Basis / Reset
   --------------------------------------------------------------------- */
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--knx-font-base);
    font-size: var(--knx-font-size-base);
    line-height: var(--knx-line-height);
    color: var(--knx-gray-800);
    background-color: var(--knx-gray-50);
    /* 96px = sichere Freifläche für die Button-Navbar.
       Die Buttons haben durch Padding + Rand + Margin mehr Höhe als die reine
       Textzeile. NICHT per calc() mit --knx-navbar-height, weil der reale
       Wert variiert. */
    padding-top: 96px;
}

/* Fokus für Tastaturnutzer sichtbar halten */
:focus-visible {
    outline: 2px solid var(--knx-primary);
    outline-offset: 2px;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--knx-primary);
    font-weight: 600;
    line-height: 1.25;
    margin-top: 0;
    margin-bottom: var(--knx-space-4);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5, h6 { font-size: 1rem; }

p {
    margin-top: 0;
    margin-bottom: var(--knx-space-4);
}

a {
    color: var(--knx-primary);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

a:hover {
    color: var(--knx-primary-dark);
    text-decoration: underline;
}

hr {
    border: 0;
    border-top: 1px solid var(--knx-gray-200);
    margin: var(--knx-space-8) 0;
}


/* ---------------------------------------------------------------------
   3) Layout-Container
   --------------------------------------------------------------------- */
.knx-container {
    max-width: var(--knx-container-max);
    margin: 0 auto;
    padding: var(--knx-space-4);
}

.knx-container-wide {
    max-width: var(--knx-container-wide);
    margin: 0 auto;
    padding: var(--knx-space-4);
}

.knx-content {
    padding: var(--knx-space-5);
}


/* ---------------------------------------------------------------------
   4) (entfernt) Area-Badge war hier als fixed oben rechts angelegt —
      jetzt wird die Area-Kennung innerhalb der Navbar angezeigt
      (siehe .knx-navbar-badge weiter unten).
   --------------------------------------------------------------------- */


/* ---------------------------------------------------------------------
   5) Navbar-Grundgerüst (Farben kommen aus Area-CSS)
   Menüpunkte sind als Buttons gestaltet:
     - leicht abgesetzte Hintergrundfläche
     - sichtbarer Rand
     - gerundet
     - deutlicher Hover/Focus/Active-Zustand
   --------------------------------------------------------------------- */
.knx-navbar {
    background-color: var(--knx-primary);
    color: #fff;
    box-shadow: var(--knx-shadow);
}

.knx-navbar .navbar-brand {
    color: #fff !important;
    font-weight: 700;
    padding: var(--knx-space-2) var(--knx-space-3);
}

/* Menüpunkte als Buttons */
.knx-navbar .navbar-nav .nav-link,
.custom-navbar .navbar-nav .nav-link {
    color: #fff !important;
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--knx-radius-sm);
    padding: var(--knx-space-2) var(--knx-space-3);
    margin: 4px 4px;
    font-weight: 500;
    line-height: 1.3;
    transition: background-color 0.15s ease-in-out,
                border-color 0.15s ease-in-out,
                color 0.15s ease-in-out,
                box-shadow 0.15s ease-in-out;
}

.knx-navbar .navbar-nav .nav-link:hover,
.custom-navbar .navbar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.55);
    color: #fff !important;
    text-decoration: none;
}

.knx-navbar .navbar-nav .nav-link:focus,
.custom-navbar .navbar-nav .nav-link:focus {
    background-color: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff !important;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.18);
    text-decoration: none;
    outline: none;
}

.knx-navbar .navbar-nav .nav-link.active,
.knx-navbar .navbar-nav .nav-item.active > .nav-link,
.custom-navbar .navbar-nav .nav-link.active {
    background-color: rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.6);
    font-weight: 600;
}

/* Logout-Button visuell als "danger" absetzen */
.knx-navbar .nav-link--logout,
.custom-navbar .nav-link--logout {
    background-color: rgba(220, 53, 69, 0.85);
    border-color: rgba(255, 255, 255, 0.5);
}

.knx-navbar .nav-link--logout:hover,
.custom-navbar .nav-link--logout:hover {
    background-color: rgba(220, 53, 69, 1);
    border-color: #fff;
}

/* Burger-Button besser lesbar */
.knx-navbar .navbar-toggler,
.custom-navbar .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.5);
}

/* Area-Badge im Navbar-Kontext (wird in nav01 / user_nav01 eingesetzt) */
.knx-navbar-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35em;
    margin: 4px 6px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #fff;
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    white-space: nowrap;
    user-select: none;
}

.knx-navbar-badge::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
    opacity: 0.85;
}

/* Bei schmalem Viewport (Burger-Menü aufgeklappt): Badge bekommt eigene Zeile */
@media (max-width: 991.98px) {
    .knx-navbar-badge {
        justify-content: center;
        margin: 8px 4px 4px;
    }
}


/* ---------------------------------------------------------------------
   6) Karten
   --------------------------------------------------------------------- */
.knx-card {
    background-color: var(--knx-white);
    border: 1px solid var(--knx-gray-200);
    border-radius: var(--knx-radius);
    padding: var(--knx-space-5);
    margin-bottom: var(--knx-space-5);
    box-shadow: var(--knx-shadow-sm);
}

.knx-card h2,
.knx-card h3 {
    margin-top: 0;
}

/* Menü-Karten-Grid für Dashboards */
.knx-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--knx-space-5);
    margin: var(--knx-space-5) 0;
}

.knx-menu-card {
    background-color: var(--knx-white);
    border: 1px solid var(--knx-gray-200);
    border-radius: var(--knx-radius);
    padding: var(--knx-space-5);
    box-shadow: var(--knx-shadow-sm);
    transition: box-shadow 0.15s ease-in-out, transform 0.15s ease-in-out;
}

.knx-menu-card:hover {
    box-shadow: var(--knx-shadow);
    transform: translateY(-1px);
}

.knx-menu-card h2,
.knx-menu-card h3 {
    color: var(--knx-primary);
    margin-top: 0;
    margin-bottom: var(--knx-space-3);
}

.knx-menu-card p {
    color: var(--knx-gray-600);
    margin-bottom: var(--knx-space-4);
}


/* ---------------------------------------------------------------------
   7) Buttons (neutral; Primary kommt aus Area-CSS)
   --------------------------------------------------------------------- */
.knx-btn,
a.knx-btn,
button.knx-btn {
    display: inline-block;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    padding: var(--knx-space-2) var(--knx-space-5);
    font-size: var(--knx-font-size-base);
    border-radius: var(--knx-radius-sm);
    border: 1px solid transparent;
    transition: background-color 0.15s ease-in-out,
                border-color 0.15s ease-in-out,
                color 0.15s ease-in-out,
                box-shadow 0.15s ease-in-out;
}

.knx-btn-primary {
    background-color: var(--knx-primary);
    border-color: var(--knx-primary);
    color: #fff;
}

.knx-btn-primary:hover,
.knx-btn-primary:focus {
    background-color: var(--knx-primary-dark);
    border-color: var(--knx-primary-dark);
    color: #fff;
    text-decoration: none;
}

.knx-btn-outline {
    background-color: transparent;
    border-color: var(--knx-primary);
    color: var(--knx-primary);
}

.knx-btn-outline:hover,
.knx-btn-outline:focus {
    background-color: var(--knx-primary);
    color: #fff;
    text-decoration: none;
}

.knx-btn-success {
    background-color: var(--knx-success);
    border-color: var(--knx-success);
    color: #fff;
}

.knx-btn-success:hover,
.knx-btn-success:focus {
    background-color: var(--knx-success-dark);
    border-color: var(--knx-success-dark);
    color: #fff;
}

.knx-btn-danger {
    background-color: var(--knx-danger);
    border-color: var(--knx-danger);
    color: #fff;
}

.knx-btn-danger:hover,
.knx-btn-danger:focus {
    background-color: var(--knx-danger-dark);
    border-color: var(--knx-danger-dark);
    color: #fff;
}

.knx-btn-block {
    display: block;
    width: 100%;
}

/* Bootstrap-Buttons auf Touch sichtbar halten */
@media (hover: none) {
    .btn-outline-primary:focus, .btn-outline-primary:active,
    .btn-outline-secondary:focus, .btn-outline-secondary:active,
    .btn-outline-success:focus, .btn-outline-success:active,
    .btn-outline-danger:focus, .btn-outline-danger:active {
        color: #fff !important;
    }
}


/* ---------------------------------------------------------------------
   8) Tabellen (einheitlicher Stil)
   --------------------------------------------------------------------- */
.knx-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--knx-space-5) 0;
    background-color: var(--knx-white);
    box-shadow: var(--knx-shadow-sm);
    font-size: var(--knx-font-size-base);
}

.knx-table th,
.knx-table td {
    padding: var(--knx-space-3) var(--knx-space-4);
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--knx-gray-200);
}

.knx-table thead th {
    background-color: var(--knx-primary);
    color: #fff;
    font-weight: 600;
    border-bottom: 2px solid var(--knx-primary-dark);
}

.knx-table thead th a {
    color: #fff;
    text-decoration: none;
}

.knx-table thead th a:hover {
    text-decoration: underline;
}

.knx-table tbody tr:nth-of-type(even) {
    background-color: var(--knx-gray-50);
}

.knx-table tbody tr:hover {
    background-color: var(--knx-primary-light);
}

/* ---------------------------------------------------------------------
   8b) Horizontaler Scroll-Container für Tabellen (Mobile UX)
   ---------------------------------------------------------------------
   Auf Smartphones sind breite Tabellen (z.B. Teilnehmer-Duplikate,
   Preisliste, Kursunterlagen) oft breiter als der Viewport. Statt sie
   gestaucht darzustellen oder das Layout zu sprengen, wickeln wir sie
   in einen Container mit `overflow-x: auto`. Zwei elegante Hinweise,
   dass man scrollen kann:
     1. Sanfte Schatten an den Rändern, die sich dynamisch ausblenden
        wenn der Benutzer den Rand erreicht.
     2. iOS-Momentum-Scrolling via `-webkit-overflow-scrolling: touch`.
   Die Klasse kann explizit vergeben werden (`<div class="knx-table-wrap">`)
   oder wird per JS (footer.php) automatisch um unverpackte Tabellen
   gelegt. */
.knx-table-wrap {
    position: relative;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;     /* sanftes Momentum auf iOS */
    overscroll-behavior-x: contain;        /* kein "Pull-to-Refresh" nebenbei */
    /* Scroll-Hinweis per Hintergrund-Gradienten:
       - weiße Shadows links/rechts bleiben am Container (background-attachment: local)
       - abblendende Schatten rutschen beim Scrollen mit (background-attachment: scroll)
       Das erzeugt die bekannte "fade"-Andeutung genau dort, wo der
       Inhalt über den sichtbaren Bereich hinausragt. */
    background:
        /* Shadows (decken bei erreichtem Rand den Cover auf) */
        linear-gradient(to right, var(--knx-white) 30%, rgba(255,255,255,0)) 0 0/40px 100% no-repeat,
        linear-gradient(to left,  var(--knx-white) 30%, rgba(255,255,255,0)) 100% 0/40px 100% no-repeat,
        /* Covers, die mit dem Inhalt scrollen */
        radial-gradient(farthest-side at 0 50%, rgba(0,0,0,0.15), rgba(0,0,0,0)) 0 0/14px 100% no-repeat,
        radial-gradient(farthest-side at 100% 50%, rgba(0,0,0,0.15), rgba(0,0,0,0)) 100% 0/14px 100% no-repeat;
    background-attachment: local, local, scroll, scroll;
    /* Margin passt zur existierenden Tabellen-Abstandslogik */
    margin: var(--knx-space-5) 0;
}

/* Wenn die Tabelle direkt im Wrapper liegt, den Außenabstand aufheben —
   sonst würde sich die Marge verdoppeln. */
.knx-table-wrap > .knx-table,
.knx-table-wrap > table {
    margin: 0;
    /* Tabelle darf breiter sein als der Container; nur so entsteht der
       Scroll. `max-content` wächst mit dem Inhalt, bricht aber nicht. */
    min-width: max-content;
}

/* Fallback für Tabellen OHNE Wrapper: auf Mobile-Viewports wird der
   Block selbst scrollbar. Wenn sie doch von einem .knx-table-wrap
   eingepackt werden (explizit oder per Auto-Wrap-JS), greift der
   Wrapper — und dieser Fallback bleibt still.  Dabei achten wir
   darauf, dass Fix-Layout-Features (wie Alternating-Row-Hover) nicht
   verloren gehen. */
@media (max-width: 768px) {
    .knx-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        max-width: 100%;
    }
    .knx-table-wrap > .knx-table {
        /* Innerhalb eines Wrappers übernimmt der Wrapper das Scrollen —
           die Tabelle bleibt als echte <table> mit table-Layout. */
        display: table;
        overflow: visible;
    }
}


/* ---------------------------------------------------------------------
   9) Formulare
   --------------------------------------------------------------------- */
.knx-form label {
    display: block;
    margin-top: var(--knx-space-3);
    font-weight: 600;
    color: var(--knx-gray-700);
}

.knx-form input[type="text"],
.knx-form input[type="number"],
.knx-form input[type="email"],
.knx-form input[type="tel"],
.knx-form input[type="password"],
.knx-form input[type="date"],
.knx-form input[type="time"],
.knx-form textarea,
.knx-form select {
    width: 100%;
    padding: var(--knx-space-2) var(--knx-space-3);
    margin-top: var(--knx-space-1);
    margin-bottom: var(--knx-space-2);
    font-size: var(--knx-font-size-base);
    line-height: 1.5;
    color: var(--knx-gray-800);
    background-color: var(--knx-white);
    border: 1px solid var(--knx-gray-300);
    border-radius: var(--knx-radius-sm);
    box-sizing: border-box;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.knx-form input:focus,
.knx-form textarea:focus,
.knx-form select:focus {
    outline: 0;
    border-color: var(--knx-primary);
    box-shadow: 0 0 0 3px rgba(var(--knx-primary-rgb), 0.15);
}

.knx-form input:required,
.knx-form select:required {
    background-color: #fffbea;
}

.knx-form .knx-form-row {
    display: flex;
    gap: var(--knx-space-4);
    flex-wrap: wrap;
}

.knx-form .knx-form-row > * {
    flex: 1 1 200px;
}


/* ---------------------------------------------------------------------
   10) Edit/Add Container (für klassische Form-Seiten)
   --------------------------------------------------------------------- */
.knx-edit-container,
.knx-add-container {
    max-width: 1000px;
    margin: 0 auto;
    background-color: var(--knx-white);
    padding: var(--knx-space-6);
    border: 1px solid var(--knx-gray-200);
    border-radius: var(--knx-radius);
    box-shadow: var(--knx-shadow-sm);
}


/* ---------------------------------------------------------------------
   11) Utility-Klassen
   --------------------------------------------------------------------- */
.knx-text-center { text-align: center; }
.knx-text-left   { text-align: left; }
.knx-text-right  { text-align: right; }

.knx-text-primary  { color: var(--knx-primary); }
.knx-text-success  { color: var(--knx-success); }
.knx-text-danger   { color: var(--knx-danger); }
.knx-text-warning  { color: var(--knx-warning-dark); }
.knx-text-muted    { color: var(--knx-gray-500); }

.knx-bg-primary-light { background-color: var(--knx-primary-light); }

.knx-font-bold    { font-weight: 700; }
.knx-font-regular { font-weight: 400; }

.knx-mt-0  { margin-top: 0 !important; }
.knx-mt-4  { margin-top: var(--knx-space-4); }
.knx-mt-8  { margin-top: var(--knx-space-8); }
.knx-mb-0  { margin-bottom: 0 !important; }
.knx-mb-4  { margin-bottom: var(--knx-space-4); }
.knx-mb-8  { margin-bottom: var(--knx-space-8); }

.knx-hidden { display: none !important; }


/* ---------------------------------------------------------------------
   12) Info-/Alert-Boxen
   --------------------------------------------------------------------- */
.knx-alert {
    padding: var(--knx-space-3) var(--knx-space-4);
    border: 1px solid transparent;
    border-radius: var(--knx-radius-sm);
    margin-bottom: var(--knx-space-4);
}

.knx-alert-info {
    color: #055160;
    background-color: #cff4fc;
    border-color: #b6effb;
}

.knx-alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
}

.knx-alert-warning {
    color: #664d03;
    background-color: #fff3cd;
    border-color: #ffecb5;
}

.knx-alert-danger {
    color: #842029;
    background-color: #f8d7da;
    border-color: #f5c2c7;
}


/* ---------------------------------------------------------------------
   13) Signature Pad (aus altem style.css übernommen)
   --------------------------------------------------------------------- */
.knx-signature-container {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    margin: var(--knx-space-5) 0;
    text-align: center;
}

.knx-signature-container canvas {
    width: 100%;
    max-width: 600px;
    height: 150px;
    border: 1px solid var(--knx-gray-300);
    background: var(--knx-white);
    border-radius: var(--knx-radius-sm);
    display: block;
    margin: 0 auto;
    touch-action: none;
}


/* ---------------------------------------------------------------------
   14) Progress Bar
   --------------------------------------------------------------------- */
.knx-progress {
    background-color: var(--knx-gray-200);
    border-radius: var(--knx-radius-sm);
    height: 20px;
    width: 100%;
    overflow: hidden;
}

.knx-progress-bar {
    background-color: var(--knx-primary);
    height: 100%;
    text-align: center;
    color: #fff;
    line-height: 20px;
    font-size: var(--knx-font-size-sm);
    transition: width 0.3s ease-in-out;
}


/* ---------------------------------------------------------------------
   15) Responsive Helpers
   --------------------------------------------------------------------- */
@media (max-width: 768px) {
    body {
        /* Auf Mobile: wenn der Burger aufgeklappt ist, wird die Navbar deutlich
           höher (alle Menüpunkte + Badge untereinander). 112px fängt das ab. */
        padding-top: 112px;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }

    .knx-container,
    .knx-container-wide,
    .knx-content {
        padding: var(--knx-space-3);
    }

    .knx-table {
        font-size: var(--knx-font-size-sm);
    }

    .knx-table th,
    .knx-table td {
        padding: var(--knx-space-2);
    }

    .knx-menu-grid {
        grid-template-columns: 1fr;
    }
}


/* ---------------------------------------------------------------------
   16) Print
   --------------------------------------------------------------------- */
@media print {
    body { padding-top: 0; background: #fff; }
    .knx-navbar, .knx-area-badge { display: none !important; }
    .knx-card, .knx-menu-card { box-shadow: none; border: 1px solid #000; }
}