/* =====================================================
   Heizungsportal – App Stylesheet
   Design: Material-inspired, mobile-first, warm tones
   ===================================================== */

/* --- Design Tokens --- */
:root {
    --primary:        #1a73e8;
    --primary-dark:   #1557b0;
    --primary-light:  #e8f0fe;
    --accent:         #f97316;
    --surface:        #ffffff;
    --surface-2:      #f8f9fa;
    --surface-3:      #f1f3f5;
    --border:         #e0e0e0;
    --text:           #1a1a1a;
    --text-secondary: #5f6368;
    --danger:         #d93025;
    --warning:        #f29900;
    --success:        #188038;
    --radius:         12px;
    --radius-sm:      8px;
    --shadow-sm:      0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
    --shadow:         0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
    --font:           'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    font-family: var(--font);
    font-size: 16px;
    color: var(--text);
    background: var(--surface-2);
    -webkit-font-smoothing: antialiased;
}

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

/* --- Layout --- */
.page { display: flex; flex-direction: column; min-height: 100vh; }

.content {
    flex: 1;
    padding: 1.5rem 1rem 3rem;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

/* --- Navbar --- */
.navbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .75rem 1.25rem;
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    text-decoration: none;
    letter-spacing: .01em;
}

.navbar-user {
    margin-left: auto;
    font-size: .875rem;
    opacity: .85;
}

.navbar .btn-outline-secondary {
    color: white;
    border-color: rgba(255,255,255,.5);
    font-size: .8rem;
    padding: .25rem .75rem;
}
.navbar .btn-outline-secondary:hover { background: rgba(255,255,255,.15); border-color: white; }

/* Admin Navbar */
.navbar-admin { background: #263238; flex-wrap: wrap; gap: .5rem; }

.navbar-toggle {
    display: none;
    background: none;
    border: 1.5px solid rgba(255,255,255,.4);
    color: white;
    font-size: 1.2rem;
    padding: .2rem .6rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-left: auto;
}

.logout-btn { margin-left: auto; }

.navbar-links {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    align-items: center;
}

.navbar-links a {
    color: rgba(255,255,255,.75);
    font-size: .875rem;
    text-decoration: none;
    padding: .3rem .1rem;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}
.navbar-links a:hover { color: white; border-bottom-color: rgba(255,255,255,.5); text-decoration: none; }
.navbar-links a.active { color: white; border-bottom-color: var(--primary); font-weight: 600; }

@media (max-width: 700px) {
    .navbar-toggle { display: flex; }
    .logout-btn { order: 2; }

    .navbar-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        width: 100%;
        order: 3;
        border-top: 1px solid rgba(255,255,255,.15);
        padding-top: .5rem;
        padding-bottom: .25rem;
    }
    .navbar-links.open { display: flex; }
    .navbar-links a {
        padding: .6rem 0;
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,.08);
    }
    .navbar-links a:last-child { border-bottom: none; }
}

/* --- Headings --- */
h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: .25rem; }
h2 { font-size: 1.3rem; font-weight: 600; margin-bottom: .5rem; }
h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .5rem; }
h5 { font-size: 1rem; font-weight: 600; margin-bottom: .75rem; }
h6 {
    font-size: .75rem;
    font-weight: 600;
    margin-bottom: .5rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .06em;
}

.text-muted { color: var(--text-secondary); }
.small, .text-muted.small { font-size: .8125rem; }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    padding: .5rem 1.125rem;
    border: 1.5px solid transparent;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: background .15s, box-shadow .15s, opacity .15s;
    white-space: nowrap;
    text-decoration: none;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); box-shadow: var(--shadow-sm); }

.btn-outline-primary { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline-primary:hover:not(:disabled) { background: var(--primary-light); }

.btn-outline-secondary { background: transparent; color: var(--text-secondary); border-color: var(--border); }
.btn-outline-secondary:hover:not(:disabled) { background: var(--surface-3); border-color: #bbb; }

.btn-outline-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-outline-danger:hover:not(:disabled) { background: #fce8e6; }

.btn-link { background: none; border: none; color: var(--primary); padding: .25rem .5rem; font-size: .875rem; }
.btn-link:hover { text-decoration: underline; }

.btn-sm { padding: .3rem .75rem; font-size: .8125rem; }
.btn-lg { padding: .65rem 1.5rem; font-size: 1.1rem; }
.btn-xs { padding: .15rem .5rem; font-size: .75rem; }

/* --- Forms --- */
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block;
    font-size: .875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: .3rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: .5rem .75rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .9375rem;
    font-family: var(--font);
    color: var(--text);
    background: var(--surface);
    transition: border-color .15s, box-shadow .15s;
    appearance: auto;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,.18);
}

.form-check { display: flex; align-items: center; gap: .5rem; }
.form-check-input { width: 1rem; height: 1rem; cursor: pointer; accent-color: var(--primary); }
.form-check-label { font-size: .9rem; cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

.input-group { display: flex; gap: .5rem; }
.input-group .form-control { flex: 1; }

/* Validation */
.validation-message { font-size: .8rem; color: var(--danger); margin-top: .25rem; }

.valid.modified:not([type=checkbox]) { border-color: var(--success); }
.invalid { border-color: var(--danger) !important; }

/* --- Alerts --- */
.alert {
    padding: .75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: .875rem;
    border: 1px solid transparent;
}
.alert-danger  { background: #fce8e6; color: var(--danger);  border-color: #f5c6c3; }
.alert-warning { background: #fef3cd; color: #7a4f00;       border-color: #fde68a; }
.alert-info    { background: var(--primary-light); color: var(--primary-dark); border-color: #c5d8f9; }

/* --- Card --- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: .875rem 1.125rem;
    background: var(--surface-3);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    flex-wrap: wrap;
}

.card-body { padding: 1.125rem; }

/* --- Tables --- */
.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th {
    padding: .6rem .875rem;
    text-align: left;
    font-size: .75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .05em;
    border-bottom: 2px solid var(--border);
}
.table td {
    padding: .75rem .875rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.table tbody tr:hover { background: var(--surface-3); }
.table-sm th, .table-sm td { padding: .4rem .6rem; font-size: .84rem; }

/* --- Login Page --- */
.login-container {
    max-width: 420px;
    margin: 3rem auto;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.login-container h1 { margin-bottom: .25rem; }
.login-container p { color: var(--text-secondary); margin-bottom: 1.5rem; }
.login-container .btn-primary { width: 100%; margin-top: .5rem; padding: .7rem; font-size: 1rem; }
.login-container .form-actions { flex-direction: column; }
.login-container .btn-link { text-align: center; }

/* --- Badges --- */
.badge {
    display: inline-block;
    padding: .15rem .5rem;
    border-radius: 99px;
    font-size: .73rem;
    font-weight: 600;
    margin-left: .4rem;
    vertical-align: middle;
}
.badge-ok      { background: #e6f4ea; color: var(--success); }
.badge-warning {
    display: inline-block;
    padding: .15rem .5rem;
    border-radius: 99px;
    font-size: .73rem;
    font-weight: 600;
    margin-left: .4rem;
    vertical-align: middle;
    background: #fef3cd;
    color: #7a4f00;
    border: 1px solid #f5d87a;
    cursor: default;
}

/* --- Room List (Admin Apartments) --- */
.room-list { display: flex; flex-direction: column; gap: .35rem; margin-bottom: .75rem; }

.room-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .5rem .75rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    flex-wrap: wrap;
}

.room-list-name { display: flex; align-items: center; gap: .25rem; }
.room-list-actions { display: flex; gap: .4rem; }

/* --- Dashboard – Rooms Grid --- */
.rooms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    margin-top: 1.25rem;
}

.room-card {
    display: block;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 1.125rem;
    text-decoration: none;
    color: var(--text);
    transition: box-shadow .15s, border-color .15s, transform .12s;
    box-shadow: var(--shadow-sm);
}

.room-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary);
    transform: translateY(-2px);
    text-decoration: none;
}

.room-card-header {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: .875rem;
    color: var(--text);
}

.trv-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .5rem 0;
    border-top: 1px solid var(--border);
}

.trv-temps { display: flex; gap: .75rem; align-items: baseline; }
.temp-current { font-size: 1.3rem; font-weight: 700; color: var(--accent); }
.temp-target  { font-size: .9rem; color: var(--text-secondary); }

/* --- TRV Detail Card --- */
.trv-detail-card {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.trv-status-row {
    display: flex;
    gap: 2rem;
    align-items: center;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.trv-temps-large { text-align: center; }
.temp-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-secondary); margin-bottom: .2rem; }
.temp-value-large { font-size: 2.2rem; font-weight: 700; color: var(--accent); line-height: 1; }

/* Temperature control */
.temp-control h3 { margin-bottom: .2rem; }

.temp-slider-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0 .25rem;
}

.temp-display {
    font-size: 1.8rem;
    font-weight: 700;
    min-width: 100px;
    text-align: center;
    color: var(--primary);
}

.temp-range-hint { font-size: .75rem; color: var(--text-secondary); text-align: center; }

.temp-input-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-top: .5rem;
}

/* --- Battery --- */
.battery        { font-size: .8rem; padding: .15rem .5rem; border-radius: 99px; font-weight: 500; }
.battery-ok     { background: #e6f4ea; color: var(--success); }
.battery-medium { background: #fef3cd; color: #7a4f00; }
.battery-low    { background: #fce8e6; color: var(--danger); }

.trv-battery { font-size: .85rem; padding: .2rem .6rem; border-radius: 99px; font-weight: 500; }

.offline-badge {
    font-size: .75rem;
    background: var(--surface-3);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: .15rem .5rem;
    border-radius: 99px;
}

/* --- Breadcrumb --- */
.breadcrumb-nav { margin-bottom: 1rem; }
.breadcrumb-nav a { font-size: .875rem; color: var(--text-secondary); }
.breadcrumb-nav a:hover { color: var(--primary); text-decoration: none; }

/* --- Schedule Editor --- */
.schedule-info { color: var(--text-secondary); font-size: .875rem; margin-bottom: 1rem; }
.schedule-list { display: flex; flex-direction: column; gap: .5rem; }

.schedule-rule {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .875rem 1rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap;
}

.schedule-rule-disabled { opacity: .55; }
.schedule-rule-time { flex: 1; font-weight: 500; font-size: .9375rem; }
.schedule-rule-temp { font-size: 1.1rem; font-weight: 700; color: var(--accent); min-width: 68px; text-align: right; }
.schedule-rule-actions { display: flex; gap: .5rem; }

.schedule-form-card { border: 2px solid var(--primary-light); }
.schedule-builder { padding-top: .25rem; }

/* Weekday selector */
.weekday-label-row { display: flex; align-items: baseline; gap: .75rem; }
.weekday-label-row label { margin-bottom: 0; }
.btn-select-all {
    background: none;
    border: none;
    padding: 0;
    font-size: .78rem;
    color: var(--primary);
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.btn-select-all:hover { color: var(--accent); }
.weekday-selector { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .4rem; }

.weekday-btn {
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    background: var(--surface);
    font-size: .8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s, border-color .15s, color .15s;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
}
.weekday-btn.active { background: var(--primary); border-color: var(--primary); color: white; }
.weekday-btn:hover:not(.active) { border-color: var(--primary); color: var(--primary); }

/* --- Admin Stats Grid --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.stat-value { font-size: 2.25rem; font-weight: 700; color: var(--primary); line-height: 1; }
.stat-label { font-size: .75rem; color: var(--text-secondary); margin: .4rem 0 .75rem; text-transform: uppercase; letter-spacing: .05em; }

/* --- Blazor reconnect + error --- */
#blazor-error-ui {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    padding: .875rem 1.25rem;
    background: var(--danger);
    color: white;
    font-size: .875rem;
    display: none;
    z-index: 1000;
    align-items: center;
    gap: 1rem;
}
#blazor-error-ui.blazor-error-boundary { display: flex; }
#blazor-error-ui .reload { color: white; font-weight: 600; text-decoration: underline; }
#blazor-error-ui .dismiss { cursor: pointer; margin-left: auto; font-size: 1.25rem; line-height: 1; }

/* --- Utilities --- */
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.list-unstyled { list-style: none; padding: 0; }
.text-danger { color: var(--danger) !important; }

/* --- Responsive --- */
@media (max-width: 600px) {
    h1 { font-size: 1.35rem; }
    .content { padding: 1rem .75rem 4rem; }
    .trv-status-row { gap: 1rem; }
    .temp-value-large { font-size: 1.8rem; }
    .table { font-size: .82rem; }
    .table th, .table td { padding: .5rem .5rem; }
    .login-container { margin: 1rem; padding: 1.5rem; }
    .card-header { flex-direction: column; align-items: flex-start; }
    .form-row { grid-template-columns: 1fr; }
    .schedule-rule { flex-direction: column; align-items: flex-start; }

    /* Navbar: E-Mail kürzen, Padding reduzieren */
    .navbar { padding: .6rem .875rem; gap: .5rem; }
    .navbar-user { max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .75rem; }

    /* Uhrzeit-Feld nicht volle Breite */
    input[type="time"] { max-width: 140px; }
}

@media (max-width: 400px) {
    .rooms-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* =====================================================
   Admin – Konsolidierte Gebäude-Seite
   ===================================================== */

.admin-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}
.admin-page-header h1 { margin: 0; }

/* Gebäude-Block */
.building-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.building-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .85rem 1.1rem;
    cursor: pointer;
    user-select: none;
    background: var(--surface-3);
    transition: background .15s;
}
.building-header:hover { background: var(--primary-light); }

.building-title {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-wrap: wrap;
}

.collapse-icon { color: var(--text-secondary); font-size: .85rem; }

.badge-info {
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 20px;
    padding: .15rem .6rem;
    font-size: .75rem;
    font-weight: 500;
}
.badge-info.mono { font-family: monospace; }
.badge-inactive {
    background: #fef3c7;
    color: #92400e;
    border-radius: 20px;
    padding: .1rem .5rem;
    font-size: .72rem;
}
.count-badge {
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: .1rem .55rem;
    font-size: .75rem;
    color: var(--text-secondary);
}

.building-actions { display: flex; gap: .4rem; }

.building-content {
    padding: .75rem 1.1rem 1rem;
    border-top: 1px solid var(--border);
}

/* Wohnungs-Block */
.apartment-block {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: .6rem;
    overflow: hidden;
    background: var(--surface);
}

.apartment-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .65rem .9rem;
    cursor: pointer;
    user-select: none;
    background: var(--surface-2);
    transition: background .15s;
}
.apartment-header:hover { background: var(--primary-light); }

.apartment-title {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
    font-size: .92rem;
}

.apt-actions { display: flex; gap: .4rem; }

.apartment-content {
    padding: .75rem .9rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Abschnitt (Bewohner / TRVs) */
.section-block {
    background: var(--surface-2);
    border-radius: var(--radius-sm);
    padding: .75rem;
}

.section-title {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--text-secondary);
    margin-bottom: .5rem;
}

/* Bewohner-Liste */
.resident-list {
    list-style: none;
    margin: 0 0 .5rem;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: .3rem;
}
.resident-list li {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .3rem .6rem;
    font-size: .88rem;
}
.resident-email { flex: 1; }

/* TRV-Liste */
.trv-list {
    list-style: none;
    margin: 0 0 .5rem;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: .3rem;
}
.trv-list li {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .4rem .6rem;
    font-size: .88rem;
}
.trv-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: .1rem;
}

/* Icon-Button (×) */
.btn-icon {
    border: none;
    background: none;
    cursor: pointer;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    line-height: 1;
    flex-shrink: 0;
    transition: background .15s;
}
.btn-icon-danger { color: var(--danger); }
.btn-icon-danger:hover { background: #fde8e8; }

/* Inline Add-Zeile */
.add-inline {
    display: flex;
    gap: .4rem;
    align-items: center;
    margin-top: .4rem;
}
.add-inline .form-control { flex: 1; }

.field-error {
    color: var(--danger);
    font-size: .82rem;
    margin: .3rem 0 0;
}

/* TRV-Hinzufügen-Formular */
.trv-add-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .75rem;
    margin-top: .5rem;
}

/* Inline-Formular-Karte (Gebäude/Wohnung anlegen) */
.inline-form-card {
    background: var(--surface);
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: 1rem;
}
.inline-form-card h5, .inline-form-card h6 {
    margin-bottom: .75rem;
    color: var(--primary);
}

.mono { font-family: monospace; }

@media (max-width: 600px) {
    .building-header, .apartment-header { flex-direction: column; align-items: flex-start; gap: .5rem; }
    .building-actions, .apt-actions { align-self: flex-end; }
    .add-inline { flex-direction: column; align-items: stretch; }
}

/* TRV-Umbenennen */
.rename-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: .5rem;
}
.rename-input {
    max-width: 300px;
    font-size: 1.25rem;
    font-weight: 600;
}
.rename-btn {
    font-size: 1rem;
    color: var(--text-muted);
    padding: 0 .4rem;
    vertical-align: middle;
    text-decoration: none;
}

.trv-title-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: .5rem;
}
.trv-title-row h1 {
    margin: 0;
}

/* Hilfe-Seite */
.hilfe-page {
    max-width: 700px;
}
.hilfe-section {
    margin-top: 2rem;
}
.hilfe-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    padding-bottom: .3rem;
    margin-bottom: .75rem;
}
.hilfe-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.25rem;
    margin-bottom: .4rem;
}
.hilfe-section ul {
    padding-left: 1.25rem;
}
.hilfe-section li {
    margin-bottom: .3rem;
}

/* ── Hilfe-Seite ───────────────────────────────────────────────── */
.hilfe-page {
    max-width: 780px;
}

.hilfe-hero {
    text-align: center;
    padding: 2rem 1rem 1.5rem;
    margin-bottom: 1rem;
}
.hilfe-hero-icon {
    font-size: 3rem;
    margin-bottom: .5rem;
}
.hilfe-hero h1 {
    margin: 0 0 .4rem;
}
.hilfe-hero p {
    color: var(--text-secondary);
    margin: 0;
}

.hilfe-section {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.hilfe-section-header {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: 1rem;
}
.hilfe-section-header h2 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
}
.hilfe-section-icon {
    font-size: 1.4rem;
}

.hilfe-subsection {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}
.hilfe-subsection h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 .5rem;
}

/* Nummerierte Schritte */
.hilfe-steps {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}
.hilfe-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.hilfe-step-number {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .95rem;
}
.hilfe-step-content strong {
    display: block;
    margin-bottom: .2rem;
}
.hilfe-step-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: .95rem;
}

/* Info-Karten-Reihe */
.hilfe-cards-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: .75rem;
    margin: 1rem 0;
}
.hilfe-cards-row-3 {
    grid-template-columns: repeat(3, 1fr);
}
.hilfe-info-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .875rem .75rem;
    text-align: center;
}
.hilfe-info-card-icon {
    font-size: 1.6rem;
    margin-bottom: .4rem;
}
.hilfe-info-card-label {
    font-weight: 600;
    font-size: .9rem;
    margin-bottom: .2rem;
}
.hilfe-info-card-desc {
    font-size: .8rem;
    color: var(--text-secondary);
}

/* Hinweis-Box */
.hilfe-notice {
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: .75rem 1rem;
    margin-top: .75rem;
    font-size: .95rem;
    color: var(--primary-dark);
}

.hilfe-hint {
    margin: .75rem 0 0;
    color: var(--text-secondary);
    font-size: .95rem;
}

/* FAQ */
.hilfe-faq {
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.hilfe-faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.hilfe-faq-question {
    background: var(--bg);
    padding: .75rem 1rem;
    font-weight: 600;
    font-size: .95rem;
}
.hilfe-faq-answer {
    padding: .75rem 1rem;
    font-size: .95rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
}

@media (max-width: 600px) {
    .hilfe-cards-row { grid-template-columns: repeat(2, 1fr); }
    .hilfe-cards-row-3 { grid-template-columns: repeat(2, 1fr); }
}