/* app_styles_v3.css - Calm & Organic Design */

/* --- VARIABLEN & BASISEINSTELLUNGEN --- */
:root {
    /* (DEFAULT = Light Mode) */

    /* NEU: Blau als Primärfarbe (Professional Blue) */
    --primary-color: #2B6CB0;
    /* Kräftiges Blau */
    --primary-dark: #2C5282;
    /* Dunkleres Blau */
    --primary-color-rgb: 43, 108, 176;

    /* NEU: Kühle, professionelle Hintergründe */
    --bg-main: #F7FAFC;
    /* Kühles Hellgrau/Weiß */
    --bg-content: #ffffff;

    /* NEU: Navigation nutzt dunkles Blau */
    --bg-nav: #2C5282;

    /* NEU: Kühlerer Text */
    --text-dark: #2D3748;
    /* Dunkles Schiefergrau */
    --text-light: #ffffff;

    /* NEU: Kühle Ränder */
    --border-color: #E2E8F0;
    --bg-table-header: #F7FAFC;
    --bg-table-row-even: #EDF2F7;

    /* NEU: Kühle Schatten */
    --shadow-soft: 0 2px 5px rgba(45, 55, 72, 0.08);
    --shadow-medium: 0 4px 12px rgba(45, 55, 72, 0.1);

    /* Standard-Farben (angepasst) */
    --text-muted: #718096;
    /* Kühles Grau */
    --primary-bg-light: #EBF8FF;
    /* Sehr helles Blau */
    --danger-color: #E53E3E;
    --danger-color-dark: #C53030;
    --danger-bg: #FFF5F5;
    --danger-bg-light: #FFF5F5;
    --success-color: #38A169;
    --warning-color: #D69E2E;
    --warning-color-dark: #B7791F;
}

body.dark-mode {
    --primary-color: #63B3ED;
    /* Helles Blau */
    --primary-dark: #4299E1;

    /* Dunkle, kühle Hintergründe */
    --bg-main: #1A202C;
    /* Sehr dunkles Blau-Grau */
    --bg-content: #2D3748;

    --bg-nav: #2D3748;

    --text-dark: #F7FAFC;
    /* Helles Grau/Weiß */
    --text-light: #1A202C;

    --border-color: #4A5568;
    --bg-table-header: #2D3748;
    --bg-table-row-even: #283141;

    --shadow-soft: 0 2px 5px rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.3);

    --text-muted: #A0AEC0;
    --primary-bg-light: #2C5282;
    --danger-color: #FC8181;
    --danger-color-dark: #FEB2B2;
    --danger-bg: #742A2A;
    --danger-bg-light: #742A2A;
    --success-color: #68D391;
}


* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background-color: var(--bg-main);
    color: var(--text-dark);
    font-size: 15px;
    line-height: 1.6;
}

/* --- ENDE BASISEINSTELLUNGEN --- */


/* --- LAYOUT & STRUKTUR --- */
.app-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
    transition: grid-template-columns 0.3s ease;
}

.sidebar {
    background-color: var(--bg-nav);
    color: var(--text-light);
    padding: 15px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-medium);
    z-index: 100;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.sidebar-title {
    font-size: 1.2em;
    font-weight: 600;
    color: #ffffff;
}

.sidebar-schule {
    display: block;
    font-size: 0.85em;
    font-weight: 300;
    color: var(--text-muted);
    line-height: 1.2;
    margin-top: 2px;
}

#nav-toggle {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5em;
    cursor: pointer;
    /* display: none; /* Nur für Mobile (später) oder Collapsed */
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-y: auto;
    overflow-x: hidden;
    flex-grow: 1;
}

.nav-item a {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    text-decoration: none;
    color: #f0ebe6;
    border-radius: 6px;
    margin: 3px 0;
    transition: background-color 0.2s;
}

.nav-item a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-icon {
    font-size: 1.1em;
    width: 20px;
    text-align: center;
    margin-right: 15px;
}

.nav-text {
    font-size: 0.9em;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.nav-separator {
    height: 1px;
    background-color: var(--border-color);
    opacity: 0.2;
    margin: 10px 0;
}

.nav-label {
    font-size: 0.9em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 10px 12px;
    letter-spacing: 0.5px;
}

.main-content {
    padding: 25px;
    overflow: auto;
}

/* Collapsed Sidebar */
.app-layout.collapsed {
    grid-template-columns: 60px 1fr;
}

.app-layout.collapsed .sidebar-header {
    justify-content: center;
}

.app-layout.collapsed .sidebar-header>div:first-child {
    display: none;
}

.app-layout.collapsed .nav-text,
.app-layout.collapsed .nav-label {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* --- ENDE LAYOUT --- */


/* --- TEXT & FORMULARE --- */
h1 {
    font-size: 2em;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 10px;
}

h2 {
    font-size: 1.5em;
    font-weight: 600;
    margin-top: 25px;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 5px;
}

p {
    margin-top: 0;
    margin-bottom: 15px;
}

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

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

a.link-delete {
    color: var(--danger-color);
}

button.link-button {
    background: none;
    border: none;
    padding: 0;
    color: var(--primary-color);
    text-decoration: underline;
    cursor: pointer;
    font: inherit;
}

button.link-button:hover {
    color: var(--primary-dark);
}

.form-group {
    margin-bottom: 10px;
}

.form-group label {
    display: block;
    font-size: 0.9em;
    font-weight: 600;
    margin-bottom: 5px;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-content);
    color: var(--text-dark);
    font-size: 1em;
}

body.dark-mode input,
body.dark-mode select,
body.dark-mode textarea {
    background-color: var(--bg-main);
    border-color: var(--border-color-dark);
    color: var(--text-dark);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-bg-light);
}

button,
.button-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 10px 15px;
    font-size: 1em;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover,
.button-primary:hover {
    background-color: var(--primary-dark);
    color: #ffffff;
    text-decoration: none;
}

.button-danger {
    background-color: var(--danger-color);
}

.button-danger:hover {
    background-color: var(--danger-color-dark);
}

.button-secondary {
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 10px 15px;
    font-size: 1em;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.button-secondary:hover {
    background-color: var(--text-dark);
}

.inline-form {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: flex-end;
}

.inline-form .form-group {
    flex-grow: 1;
    margin-bottom: 0;
}

.form-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.form-grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-grid-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 10px;
}

.form-grid-checkboxes div {
    display: flex;
    align-items: center;
    background-color: var(--bg-main);
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

body.dark-mode .form-grid-checkboxes div {
    background-color: var(--bg-card-dark);
    border-color: var(--border-color-dark);
}

.form-grid-checkboxes input[type="checkbox"] {
    width: auto;
    margin-right: 10px;
}

.form-grid-checkboxes label {
    margin-bottom: 0;
    font-weight: 500;
}

/* --- ENDE FORMULARE --- */


/* --- STATUSMELDUNGEN & BOXEN --- */
.status {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    font-weight: 500;
}

.status.success {
    background-color: var(--primary-bg-light);
    color: var(--primary-dark);
    border: 1px solid var(--primary-color);
}

.status.error {
    background-color: var(--danger-bg);
    color: var(--danger-color-dark);
    border: 1px solid var(--danger-color);
}

.status.info {
    background-color: #e6f7ff;
    color: #0056b3;
    border: 1px solid #b3e0ff;
}

.content-box {
    background-color: var(--bg-content);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-soft);
}

/* --- ENDE STATUS & BOXEN --- */


/* --- TABELLEN --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.data-table th {
    background-color: var(--bg-table-header);
    font-size: 0.9em;
    font-weight: 600;
}

.data-table tbody tr:nth-child(even) {
    background-color: var(--bg-table-row-even);
}

.data-table.simple th {
    font-size: 0.85em;
    padding: 8px 10px;
}

.data-table.simple td {
    font-size: 0.9em;
    padding: 8px 10px;
    vertical-align: middle;
}

/* --- ENDE TABELLEN --- */


/* --- MODALS & OVERLAYS --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
}

.modal-box {
    /* NEU: Hintergrund, Padding und Rand von .content-box übernommen */
    background-color: var(--bg-content);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow-medium);
    /* Stärkerer Schatten als .content-box */
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 999;
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    /* Höhe leicht angepasst */
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 1.8em;
    font-weight: 300;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-dark);
}

.hidden {
    display: none;
}

.wizard-preview-box {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    border: 1px solid #ddd;
    background-color: #f9f9f9;
}

body.dark-mode .wizard-preview-box {
    background-color: var(--bg-main);
    border-color: var(--border-color-dark);
}

.wizard-preview-box p {
    margin: 0;
    font-size: 0.9em;
}

#detail-modal {
    max-width: 95%;
}

#detail-modal-content {
    max-height: 80vh;
    overflow-y: auto;
}

/* --- ENDE MODALS --- */


/* =================================================================
 * KPI GRID STYLES (Dashboard)
 * =================================================================
 */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

.kpi-box {
    padding: 5px;
    background-color: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color, #e1e1e1);
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s;
}

.kpi-box:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.kpi-box span {
    font-size: 1.0em;
    color: var(--text-muted, #6c757d);
    margin-bottom: 5px;
}

.kpi-box strong {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--text-dark, #343a40);
}

.kpi-box.positiv {
    border-left: 5px solid var(--success-color, #28a745);
}

.kpi-box.negativ {
    border-left: 5px solid var(--danger-color, #dc3545);
}

body.dark-mode .kpi-box {
    background-color: var(--bg-card-dark, #2d2d30);
    border: 1px solid var(--border-color-dark, #444);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* =================================================================
 * STATS-BOXEN (z.B. auf detail_person.php)
 * =================================================================
 */
.stats-boxen {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    margin-top: 10px;
}

.stat-box {
    padding: 10px 15px;
    background-color: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color, #e1e1e1);
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

.stat-box span {
    font-size: 0.85em;
    color: var(--text-muted, #6c757d);
    display: block;
    margin-bottom: 2px;
}

.stat-box strong {
    font-size: 1.6em;
    font-weight: 700;
    color: var(--text-dark, #343a40);
    display: block;
}

.stat-box.positiv strong {
    color: var(--success-color, #28a745);
}

.stat-box.negativ strong {
    color: var(--danger-color, #dc3545);
}

body.dark-mode .stat-box {
    background-color: var(--bg-card-dark, #2d2d30);
    border: 1px solid var(--border-color-dark, #444);
}


/* =================================================================
 * INTERAKTIVE MATRIX (uebersicht_detail.php)
 * =================================================================
 */

/* =================================================================
 * 1. STICKY HEADER FÜR MATRIX
 * =================================================================
 */
.matrix-table-container {
    overflow: auto;
    max-height: 80vh;
}

.matrix-table th {
    position: -webkit-sticky;
    /* Safari-Support */
    position: sticky;
    top: 0;
    z-index: 10;
    background-color: var(--bg-table-header, #FBFBF9);
    border-bottom: 2px solid var(--primary-color, #4A7856);
}

body.dark-mode .matrix-table th {
    background-color: var(--bg-card-dark, #2d2d30);
    border-bottom: 2px solid var(--primary-color, #4A7856);
}

.matrix-table th:first-child {
    z-index: 11;
}

/* =================================================================
 * 2. NEUE MATRIX-ZELLEN STYLES (Version 2: Lehrer-Zentriert)
 * =================================================================
 */
.matrix-zelle[data-clickable="true"] {
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: center;
    vertical-align: middle;
    padding: 4px;
}

.matrix-zelle[data-clickable="true"]:hover {
    background-color: var(--primary-bg-light, #e6f2ff);
}

body.dark-mode .matrix-zelle[data-clickable="true"]:hover {
    background-color: var(--primary-color-dark-hover, #3a3a3a);
}

.matrix-lehrer-kuerzel {
    font-size: 0.8em;
    font-weight: 700;
    color: var(--text-dark, #343a40);
    display: block;
    line-height: 1.1;
}

body.dark-mode .matrix-lehrer-kuerzel {
    color: var(--text-light, #f8f9fa);
}

.matrix-stunden-block {
    display: flex;
    justify-content: space-evenly;
    font-size: 0.8em;
    color: var(--text-muted, #6c757d);
    margin-top: 2px;
    gap: 5px;
}

/* Spezifische Farben für Soll und Ist */
.matrix-stunden-soll {
    color: var(--text-muted, #6c757d);
}

.matrix-stunden-ist {
    color: var(--text-dark, #343a40);
    font-weight: 500;
}

body.dark-mode .matrix-stunden-ist {
    color: var(--text-light, #f8f9fa);
}

/* =================================================================
 * 3. FARBLICHE HERVORHEBUNG SUMMEN-SPALTEN
 * =================================================================
 */
.summe-header {
    background-color: var(--primary-bg-light, #e6f2ff) !important;
}

.summen-zelle {
    background-color: var(--bg-main, #FBFBF9);
    font-weight: bold;
}

body.dark-mode .summe-header {
    background-color: #2a3a4a !important;
}

body.dark-mode .summen-zelle {
    background-color: var(--bg-card-dark, #2d2d30);
}


/* =================================================================
 * 4. FARBLICHE HERVORHEBUNG LÜCKEN (Soll > Ist)
 * =================================================================
 */
.luecke-zelle {
    background-color: var(--danger-bg-light, #fff0f0);
}

.luecke-zelle .matrix-lehrer-kuerzel {
    color: var(--danger-color-dark, #a02020);
}

.luecke-zelle .matrix-stunden-block {
    color: var(--danger-color-dark, #a02020);
}

body.dark-mode .luecke-zelle {
    background-color: #4a2d2d;
}

body.dark-mode .luecke-zelle .matrix-lehrer-kuerzel,
body.dark-mode .luecke-zelle .matrix-stunden-block {
    color: #ffc0c0;
}

/* =================================================================
 * NEUES MATRIX-EDIT-MODAL
 * =================================================================
 */
#matrix-edit-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
}

#matrix-edit-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 999;
    width: 90%;
    max-width: 500px;
}

#matrix-modal-info {
    font-size: 1.1em;
    font-weight: bold;
    margin-bottom: 15px;
    display: block;
}

#matrix-edit-form .form-group {
    margin-bottom: 15px;
}

#matrix-modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
}

/* =================================================================
 * STYLES FÜR DIE EDITIERBARE STUNDENTAFEL-MATRIX
 * =================================================================
 */

.stundentafel-zelle-edit {
    padding: 0 !important;
    /* Zellen-Padding entfernen */
    height: 35px;

    /* === NEU: Feste, schmale Breite erzwingen === */
    width: 45px;
    min-width: 45px;
    max-width: 45px;
}

.stundentafel-input {
    width: 100%;
    height: 100%;
    border: none;
    text-align: center;
    background-color: transparent;
    font-size: 1.0em;
    /* Schrift etwas kleiner für bessere Passform */
    font-weight: 500;
    color: var(--text-dark);
    padding: 0;
    /* Padding reduziert */
    box-sizing: border-box;

    /* === NEU: Standard-Pfeile (Spinner) ausblenden für cleanen Look === */
    /* -moz-appearance: textfield; */
    /* Firefox */
}

/* Für Chrome, Safari, Edge, Opera: Pfeile ausblenden */
.stundentafel-input::-webkit-outer-spin-button,
.stundentafel-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.stundentafel-input:focus {
    background-color: #fff;
    box-shadow: inset 0 0 0 2px var(--primary-color);
    outline: none;
}

/* Leere Inputs dezent darstellen */
.stundentafel-input:placeholder-shown {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Optional: Header auch schmaler machen, damit es bündig wirkt */
.matrix-table th {
    font-size: 0.8em;
    /* Kleinere Schrift im Header */
    padding: 4px 2px;
    /* Weniger seitliches Padding */
}