/* ============================================================
   DIFAK Lernplattform — main.css
   Sprint 2: Admin-UI, Modals, Kurs-Detail, State-Cards, Module
   ============================================================ */

:root {
    --navy:        #1a2744;
    --navy-deep:   #111b30;
    --navy-mid:    #1f3058;
    --navy-light:  #2a4070;

    --gold:        #c9a84c;
    --gold-light:  #e8c97a;
    --gold-pale:   #f5e9c8;

    --parchment:   #f4efe4;
    --parch-dark:  #ebe4d5;
    --white:       #ffffff;

    --text:        #1a1e2e;
    --text-mid:    #4a5168;
    --text-soft:   #8a90a8;

    --border:      #ddd8cc;
    --border-soft: #eee9df;

    --success:     #4a8c6f;
    --warn:        #b87333;
    --danger:      #c0392b;

    --admin:       #6b3fa0;
    --admin-light: #9b6fd0;
    --admin-pale:  #f0e8ff;

    --sidebar-w:   248px;
    --header-h:    60px;

    --shadow-sm:   0 1px 3px rgba(26, 39, 68, 0.05);
    --shadow-md:   0 4px 16px rgba(26, 39, 68, 0.08);
    --shadow-lg:   0 12px 40px rgba(26, 39, 68, 0.15);
}

/* ============================================================ Basis ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html, body { margin: 0; padding: 0; height: 100%; }

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    color: var(--text);
    background: var(--parchment);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    font-family: 'Source Serif 4', Georgia, serif;
    color: var(--navy);
    margin: 0 0 8px 0;
    font-weight: 600;
    line-height: 1.25;
}

h1 { font-size: 24px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }

p { margin: 0 0 12px 0; }

a { color: var(--navy); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--gold); }

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 14px; }

code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    background: var(--parchment);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--navy);
}

/* ============================================================ App-Loading ============================================================ */
.app-loading {
    position: fixed; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--parchment); z-index: 9999;
}
.app-loading-inner { text-align: center; }
.app-loading-logo {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 48px; font-weight: 700; color: var(--navy); letter-spacing: -2px;
}
.app-loading-text {
    font-size: 9px; font-weight: 600; letter-spacing: 3px;
    text-transform: uppercase; color: var(--gold); margin-top: 4px;
}

/* ============================================================ Buttons ============================================================ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 20px; border-radius: 6px;
    font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 500;
    cursor: pointer; border: none; transition: all 0.15s;
    text-decoration: none; white-space: nowrap;
}
.btn-primary   { background: var(--navy);    color: #fff; }
.btn-primary:hover { background: var(--navy-mid); color: #fff; }
.btn-secondary { background: var(--parchment); color: var(--navy); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--parch-dark); color: var(--navy); }
.btn-gold      { background: var(--gold); color: var(--navy); font-weight: 600; }
.btn-gold:hover { background: var(--gold-light); color: var(--navy); }
.btn-danger    { background: #fdecea; color: var(--danger); border: 1px solid #e8b4b0; }
.btn-danger:hover { background: #fbd5d2; }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn[disabled], .btn[aria-busy="true"] { opacity: 0.6; cursor: not-allowed; }

/* ============================================================ Login-Seite ============================================================ */
.login-page {
    min-height: 100vh; min-height: 100dvh;
    display: flex; align-items: center; justify-content: center;
    padding: 24px; background: var(--parchment);
    background-image:
        radial-gradient(circle at 20% 20%, rgba(201, 168, 76, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(26, 39, 68, 0.05) 0%, transparent 50%);
}
.login-card {
    width: 100%; max-width: 420px; background: var(--white);
    border: 1px solid var(--border-soft); border-radius: 12px;
    box-shadow: var(--shadow-lg); overflow: hidden;
}
.login-header {
    padding: 32px 32px 24px; text-align: center;
    border-bottom: 1px solid var(--border-soft);
    background: linear-gradient(180deg, var(--white) 0%, var(--parchment) 100%);
}
.login-logo {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 42px; font-weight: 700; color: var(--navy); letter-spacing: -2px; line-height: 1;
}
.login-logo .dot { color: var(--gold); }
.login-subtitle {
    font-size: 9px; font-weight: 600; letter-spacing: 3px;
    text-transform: uppercase; color: var(--gold); margin-top: 4px;
}
.login-domain {
    font-family: 'JetBrains Mono', monospace; font-size: 11px;
    color: var(--text-soft); margin-top: 14px;
}
.login-body { padding: 28px 32px 32px; }
.login-title {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 20px; font-weight: 600; color: var(--navy); margin: 0 0 6px 0;
}
.login-hint { font-size: 13px; color: var(--text-mid); margin: 0 0 24px 0; }
.login-footer {
    margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border-soft);
    text-align: center; font-size: 12px; color: var(--text-soft);
}
.login-footer a { color: var(--gold); font-weight: 500; }

/* ============================================================ Formulare ============================================================ */
.form-field { margin-bottom: 16px; }
.form-field label {
    display: block; font-size: 12px; font-weight: 500;
    color: var(--text-mid); margin-bottom: 6px; letter-spacing: 0.2px;
}
.form-field label .hint { color: var(--text-soft); font-weight: 400; font-size: 11px; }
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"],
.form-field input[type="tel"],
.form-field input[type="number"],
.form-field input[type="date"],
.form-field input[type="url"],
.form-field textarea,
.form-field select {
    width: 100%; padding: 10px 12px;
    border: 1px solid var(--border); border-radius: 6px;
    background: var(--white); color: var(--text);
    font-family: inherit; font-size: 14px;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
    outline: none; border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
}
.form-field input.readonly-code,
.form-field input[readonly] {
    background: var(--parchment); color: var(--navy);
    font-family: 'JetBrains Mono', monospace; font-weight: 600;
    cursor: default;
}
.form-field input[type="checkbox"] { width: auto; margin-right: 6px; }
.form-field input[type="checkbox"] + * { display: inline; }
.form-field .error-text { color: var(--danger); font-size: 12px; margin-top: 4px; }

.form-row {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px;
}
.form-row .form-field { margin-bottom: 0; }

/* ============================================================ Alerts + Toast ============================================================ */
.alert {
    padding: 12px 16px; border-radius: 6px; font-size: 13px;
    margin-bottom: 16px; border: 1px solid transparent;
}
.alert-error   { background: #fdecea; border-color: #e8b4b0; color: var(--danger); }
.alert-success { background: #e8f5ef; border-color: #a8d4c0; color: var(--success); }
.alert-info    { background: var(--gold-pale); border-color: var(--gold-light); color: var(--navy); }

.toast {
    position: fixed; top: max(env(safe-area-inset-top), 20px);
    left: 50%; transform: translateX(-50%) translateY(-20px);
    background: var(--navy); color: var(--white);
    padding: 12px 20px; border-radius: 8px;
    font-size: 14px; font-weight: 500;
    box-shadow: var(--shadow-md); z-index: 10000;
    opacity: 0; transition: all 0.25s; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-success { background: var(--success); }
.toast-error   { background: var(--danger); }
.toast-info    { background: var(--navy); }

/* ============================================================ Empty State ============================================================ */
.empty-state {
    text-align: center; padding: 48px 24px; color: var(--text-mid);
    background: var(--white); border: 1px solid var(--border-soft); border-radius: 8px;
}
.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 18px; color: var(--navy); margin: 0 0 8px 0;
}
.empty-state p { font-size: 14px; color: var(--text-mid); margin: 0 0 20px 0; }

.empty-state-mini {
    text-align: center; padding: 24px; color: var(--text-soft);
    background: var(--parchment); border-radius: 6px; margin: 12px 0;
}

/* ============================================================ Dashboard-Shell ============================================================ */
.dash-shell {
    min-height: 100vh; min-height: 100dvh;
    display: flex; flex-direction: column; background: var(--parchment);
}
.dash-topbar {
    background: var(--white); border-bottom: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm); padding: 12px 24px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap;
    position: sticky; top: 0; z-index: 100;
}
.dash-brand { display: flex; align-items: baseline; gap: 12px; }
.dash-logo {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 24px; font-weight: 700; color: var(--navy);
    letter-spacing: -1px; line-height: 1;
}
.dash-logo .dot { color: var(--gold); }
.dash-domain {
    font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--text-soft);
}

/* Topbar Navigation */
.dash-nav-link {
    font-size: 13px; font-weight: 500;
    padding: 4px 12px; border-radius: 4px;
    color: var(--text-mid);
    margin-left: 12px;
    transition: all 0.15s;
}
.dash-nav-link:hover { color: var(--navy); background: var(--parchment); }
.dash-nav-link.active { color: var(--navy); background: var(--gold-pale); }

.dash-user {
    margin-left: auto; margin-right: 12px; text-align: right; line-height: 1.3;
}
.dash-user-name { font-weight: 600; color: var(--navy); font-size: 14px; }
.dash-user-meta { font-size: 11px; color: var(--text-soft); }

.admin-tag {
    color: var(--admin); font-weight: 600;
    text-transform: uppercase; font-size: 10px; letter-spacing: 1px;
}

.dash-content {
    flex: 1; width: 100%; max-width: 1100px;
    margin: 0 auto; padding: 32px 24px 64px;
}

.dash-greeting { margin-bottom: 32px; }
.dash-greeting h1 {
    font-size: 28px; font-weight: 600; color: var(--navy); margin: 0 0 4px 0;
}
.dash-greeting h1 em {
    font-style: italic; font-weight: 400; color: var(--gold);
}
.dash-greeting-sub { color: var(--text-mid); font-size: 14px; margin: 0; }

.dash-section { margin-bottom: 40px; }
.dash-section-head {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 16px; padding-bottom: 8px;
    border-bottom: 1px solid var(--border-soft);
}
.dash-section-head h2 { font-size: 16px; margin: 0; color: var(--navy); flex: 1; }
.dash-section-tag {
    background: var(--admin-pale); color: var(--admin);
    font-size: 10px; font-weight: 600; letter-spacing: 1px;
    text-transform: uppercase; padding: 3px 8px; border-radius: 4px;
}

/* ============================================================ Spinner ============================================================ */
.dash-loading {
    display: flex; justify-content: center; padding: 48px;
}
.dash-spinner {
    width: 32px; height: 32px;
    border: 3px solid var(--border); border-top-color: var(--gold);
    border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================ Kurs-Karten (Dashboard) ============================================================ */
.kurs-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px;
}
.kurs-card {
    background: var(--white); border: 1px solid var(--border-soft); border-radius: 8px;
    padding: 20px; cursor: pointer; transition: all 0.2s;
    position: relative; overflow: hidden;
}
.kurs-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--gold); opacity: 0; transition: opacity 0.2s;
}
.kurs-card:hover {
    border-color: var(--gold-pale); box-shadow: var(--shadow-md); transform: translateY(-1px);
}
.kurs-card:hover::before { opacity: 1; }

.kurs-card-bereich {
    display: flex; align-items: center; gap: 6px;
    font-size: 11px; font-weight: 600; color: var(--text-soft);
    text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 10px;
}
.kurs-card-bereich-icon { font-size: 16px; }
.kurs-card-title {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 16px; font-weight: 600; color: var(--navy);
    margin: 0 0 6px 0; line-height: 1.3;
}
.kurs-card-subtitle { font-size: 13px; color: var(--text-mid); margin: 0 0 14px 0; line-height: 1.4; }

.kurs-card-termin {
    display: flex; align-items: center; gap: 10px;
    font-size: 12px; color: var(--text-mid);
    background: var(--parchment); padding: 8px 12px; border-radius: 6px; margin-bottom: 14px;
}
.kurs-card-termin-code {
    font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--navy); font-weight: 500;
}

.kurs-card-progress {
    margin-top: auto; padding-top: 12px; border-top: 1px solid var(--border-soft);
}
.kurs-card-progress-head {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 6px; font-size: 12px;
}
.kurs-card-progress-status { font-weight: 500; }
.kurs-card-progress-status.status-completed { color: var(--success); }
.kurs-card-progress-status.status-started   { color: var(--gold); }
.kurs-card-progress-status.status-new       { color: var(--text-soft); }
.kurs-card-progress-pct {
    font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 600; color: var(--navy);
}

.progress-bar { height: 6px; background: var(--border-soft); border-radius: 3px; overflow: hidden; }
.progress-bar-fill {
    height: 100%; background: var(--gold); border-radius: 3px;
    transition: width 0.4s ease-out;
}

/* ============================================================ Admin: Bereich-Gruppen + Tabellen ============================================================ */
.admin-bereich-group { margin-bottom: 32px; }
.admin-bereich-head {
    display: flex; align-items: center; gap: 8px;
    font-family: 'Source Serif 4', Georgia, serif; font-size: 16px;
    color: var(--navy); margin: 0 0 12px 0;
    padding-bottom: 6px; border-bottom: 2px solid var(--gold-pale);
}
.admin-bereich-kuerzel {
    margin-left: auto; font-family: 'JetBrains Mono', monospace;
    font-size: 11px; color: var(--text-soft); font-weight: 400;
}

.admin-table {
    width: 100%; border-collapse: collapse;
    background: var(--white); border: 1px solid var(--border-soft); border-radius: 6px;
    overflow: hidden;
}
.admin-table th {
    text-align: left; padding: 10px 12px;
    background: var(--parchment); border-bottom: 1px solid var(--border-soft);
    font-size: 11px; font-weight: 600; color: var(--text-mid);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.admin-table td {
    padding: 12px; border-bottom: 1px solid var(--border-soft);
    font-size: 13px; vertical-align: middle;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr.row-dimmed td { opacity: 0.6; }
.admin-table-title { font-weight: 600; color: var(--navy); }
.admin-table-sub { font-size: 11px; color: var(--text-soft); margin-top: 2px; }
.admin-table-actions {
    text-align: right; white-space: nowrap;
    display: flex; gap: 6px; justify-content: flex-end;
}

.badge {
    display: inline-block; font-size: 10px; font-weight: 600;
    padding: 3px 8px; border-radius: 10px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.badge-ok   { background: #e8f5ef; color: var(--success); }
.badge-off  { background: var(--parchment); color: var(--text-soft); }
.badge-info { background: var(--gold-pale); color: var(--navy); }

/* ============================================================ Modal ============================================================ */
.modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(26, 39, 68, 0.6);
    backdrop-filter: blur(2px);
    display: flex; align-items: flex-start; justify-content: center;
    padding: 40px 16px; overflow-y: auto;
    z-index: 200;
}
.modal {
    background: var(--white); border-radius: 12px;
    width: 100%; max-width: 600px;
    box-shadow: var(--shadow-lg); overflow: hidden;
    animation: modalIn 0.2s ease-out;
}
.modal-lg { max-width: 820px; }
@keyframes modalIn {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.modal-head {
    padding: 18px 24px; border-bottom: 1px solid var(--border-soft);
    display: flex; align-items: center; justify-content: space-between;
    background: var(--parchment);
}
.modal-head h3 {
    font-family: 'Source Serif 4', Georgia, serif; margin: 0; font-size: 18px;
}
.modal-close {
    background: none; border: none; font-size: 28px; line-height: 1;
    color: var(--text-soft); cursor: pointer; padding: 0 4px;
}
.modal-close:hover { color: var(--navy); }
.modal-body { padding: 24px; max-height: 75vh; overflow-y: auto; }
.modal-footer {
    display: flex; justify-content: flex-end; gap: 10px;
    margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--border-soft);
}
.modal-footer .btn-danger { margin-right: auto; }

.admin-termin-form {
    background: var(--parchment);
    padding: 16px; border-radius: 8px; margin-bottom: 24px;
}
.admin-termin-form h4 {
    font-family: 'Source Serif 4', Georgia, serif;
    margin: 0 0 12px 0; font-size: 14px;
}

/* ============================================================ Kurs-Detail-Seite ============================================================ */
.back-link {
    display: inline-block; font-size: 13px; color: var(--text-mid);
    margin-bottom: 16px; transition: color 0.15s;
}
.back-link:hover { color: var(--gold); }

.kurs-detail-header {
    background: var(--white); border: 1px solid var(--border-soft);
    border-radius: 12px; padding: 32px; margin-bottom: 24px;
    position: relative; overflow: hidden;
}
.kurs-detail-header::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
}
.kurs-detail-bereich {
    display: flex; align-items: center; gap: 6px;
    font-size: 11px; font-weight: 600; color: var(--text-soft);
    text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px;
}
.kurs-detail-title {
    font-size: 28px; font-weight: 600; line-height: 1.2;
    margin: 0 0 8px 0; color: var(--navy);
}
.kurs-detail-subtitle {
    font-size: 16px; color: var(--text-mid); margin: 0 0 20px 0;
    font-style: italic;
}
.kurs-detail-meta {
    display: flex; flex-wrap: wrap; gap: 8px 20px;
    font-size: 13px; color: var(--text-mid); margin-top: 16px;
    padding-top: 16px; border-top: 1px solid var(--border-soft);
}

.kurs-detail-section { margin-bottom: 32px; }
.kurs-detail-section h2 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 18px; margin: 0 0 16px 0; color: var(--navy);
    padding-bottom: 6px; border-bottom: 1px solid var(--border-soft);
}
.kurs-detail-description {
    background: var(--white); border: 1px solid var(--border-soft);
    border-radius: 8px; padding: 20px;
    font-size: 14px; line-height: 1.6; color: var(--text-mid);
}
.kurs-detail-description p:last-child { margin-bottom: 0; }

/* State-Cards */
.kurs-state-card {
    background: var(--white); border: 1px solid var(--border-soft);
    border-radius: 10px; padding: 28px; margin-bottom: 24px;
    text-align: center;
}
.kurs-state-b {
    background: linear-gradient(135deg, var(--gold-pale), var(--white));
    border-color: var(--gold-light);
}
.kurs-state-c {
    background: var(--white); text-align: left;
}
.kurs-state-icon { font-size: 36px; margin-bottom: 12px; opacity: 0.7; }
.kurs-state-card h2 {
    font-family: 'Source Serif 4', Georgia, serif;
    margin: 0 0 8px 0;
    border: none; padding: 0;
}
.kurs-state-card p { color: var(--text-mid); margin: 0 0 20px 0; }

.enrollment-head {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 24px; margin-bottom: 16px;
}
.enrollment-termin {
    font-size: 13px; color: var(--text-mid); margin-top: 4px;
}
.enrollment-termin strong {
    font-family: 'JetBrains Mono', monospace; color: var(--navy);
}

/* BBB-Live S3 — Live-Konferenz-Karte (Beitritt für den eigenen Termin) */
.kurs-live-card {
    background: var(--white); border: 1px solid var(--border-soft);
    border-radius: 10px; padding: 18px 22px; margin-bottom: 24px;
    display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.kurs-live-info { display: flex; align-items: center; gap: 12px; text-align: left; }
.kurs-live-info strong { color: var(--navy); display: block; }
.kurs-live-info p { margin: 2px 0 0 0; font-size: 13px; }
.kurs-live-icon { font-size: 18px; line-height: 1; }
.kurs-live-card .btn { white-space: nowrap; flex-shrink: 0; }
@media (max-width: 600px) {
    .kurs-live-card { flex-direction: column; align-items: stretch; }
    .kurs-live-card .btn { width: 100%; text-align: center; }
}

.enrollment-progress { text-align: right; min-width: 100px; }
.enrollment-progress-pct {
    font-family: 'JetBrains Mono', monospace; font-size: 28px;
    font-weight: 700; color: var(--gold); line-height: 1;
}
.enrollment-progress-label {
    font-size: 10px; color: var(--text-soft);
    text-transform: uppercase; letter-spacing: 1px; margin-top: 2px;
}

/* Termin-Liste auf Detail */
.termin-list { display: flex; flex-direction: column; gap: 8px; }
.termin-item {
    background: var(--white); border: 1px solid var(--border-soft);
    border-radius: 6px; padding: 12px 16px;
    display: flex; align-items: center; gap: 16px;
}
.termin-item-code {
    font-family: 'JetBrains Mono', monospace; font-size: 13px;
    color: var(--navy); font-weight: 600;
}
.termin-item-dates {
    color: var(--text-mid); font-size: 13px; flex: 1;
}
.termin-item-plaetze { font-size: 13px; color: var(--success); }

/* Module + Lektionen */
.module-list { display: flex; flex-direction: column; gap: 12px; }
.modul-card {
    background: var(--white); border: 1px solid var(--border-soft); border-radius: 8px;
    padding: 16px 20px;
}
.modul-head {
    display: flex; align-items: center; gap: 16px;
    padding-bottom: 8px; border-bottom: 1px solid var(--border-soft);
}
.modul-num {
    font-family: 'JetBrains Mono', monospace; font-size: 11px;
    color: var(--text-soft); text-transform: uppercase; letter-spacing: 1px;
}
.modul-title {
    font-family: 'Source Serif 4', Georgia, serif; font-size: 15px;
    color: var(--navy); margin: 0; flex: 1;
}
.modul-progress {
    font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text-mid);
}

.lektion-list { list-style: none; padding: 0; margin: 8px 0 0 0; }
.lektion-item {
    display: flex; align-items: center; gap: 12px;
    padding: 8px 0; font-size: 14px; color: var(--text);
    border-bottom: 1px dashed var(--border-soft);
}
.lektion-item:last-child { border-bottom: none; }
.lektion-check {
    width: 20px; height: 20px;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); border-radius: 50%;
    font-size: 12px; color: var(--text-soft); background: var(--white);
}
.lektion-completed .lektion-check {
    background: var(--success); border-color: var(--success); color: #fff;
}
.lektion-completed .lektion-title { color: var(--text-soft); }

.text-soft { color: var(--text-soft); }

/* ============================================================ Mobile ============================================================ */
@media (max-width: 640px) {
    .dash-topbar { padding: 10px 16px; }
    .dash-nav-link { margin-left: 4px; padding: 4px 8px; font-size: 12px; }
    .dash-user { order: 3; width: 100%; text-align: left; margin: 0; }
    .dash-content { padding: 24px 16px 48px; }
    .dash-greeting h1 { font-size: 22px; }
    .kurs-grid { grid-template-columns: 1fr; }
    .kurs-detail-header { padding: 20px; }
    .kurs-detail-title { font-size: 22px; }
    .modal-backdrop { padding: 16px; }
    .modal-body { padding: 16px; max-height: 85vh; }
    .form-row { grid-template-columns: 1fr; }
    .admin-table { font-size: 12px; }
    .admin-table td, .admin-table th { padding: 8px; }
    .enrollment-head { flex-direction: column; align-items: flex-start; }
    .enrollment-progress { text-align: left; }
    .termin-item { flex-wrap: wrap; }
}

/* ============================================================ Utility ============================================================ */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-12 { margin-top: 12px; }
.mt-20 { margin-top: 20px; }