/* =============================================
   AZ-3 Portal — Design System & Responsive Layer
   ---------------------------------------------
   Breakpoints (aligned with MudBlazor):
     xs   0     –  599.98px   mobile
     sm   600   –  959.98px   small tablet
     md   960   – 1279.98px   large tablet / small desktop
     lg  1280   – 1919.98px   desktop
     xl  1920+                large desktop
   ============================================= */

:root {
    /* --- Palette --- */
    --color-primary:            #0f766e;
    --color-primary-dark:       #0d5c56;
    --color-primary-light:      #14b8a6;
    --color-primary-gradient:   linear-gradient(135deg, #0f766e, #14b8a6);
    --color-primary-tint:       rgba(15, 118, 110, 0.08);
    --color-primary-tint-hover: rgba(15, 118, 110, 0.12);
    --color-primary-shadow:     rgba(15, 118, 110, 0.18);

    --color-text:          #0f172a;
    --color-text-body:     #334155;
    --color-text-secondary:#64748b;
    --color-text-muted:    #94a3b8;

    --color-surface:       #ffffff;
    --color-bg:            #f1f5f9;
    --color-bg-subtle:     #f8fafc;
    --color-bg-soft:       #f1f5f9;

    --color-border:        #e2e8f0;
    --color-border-strong: #cbd5e1;

    --color-success:      #16a34a;
    --color-success-bg:   #ecfdf5;
    --color-success-text: #047857;
    --color-warning-bg:   #fef3c7;
    --color-warning-text: #92400e;
    --color-danger:       #dc2626;
    --color-danger-bg:    #fef2f2;
    --color-danger-text:  #991b1b;

    --color-chip-bg:      #f1f5f9;
    --color-chip-text:    #475569;

    /* --- Radii --- */
    --radius-sm:  6px;
    --radius-md:  8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* --- Shadows --- */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 4px 20px rgba(15, 23, 42, 0.08);
    --shadow-primary: 0 2px 8px rgba(15, 118, 110, 0.18);
    --shadow-primary-hover: 0 4px 16px rgba(15, 118, 110, 0.28);

    /* --- Typography --- */
    --font-family: 'Inter', 'Roboto', Helvetica, Arial, sans-serif;

    /* --- Motion --- */
    --duration-fast: 0.15s;
    --duration-base: 0.2s;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* =============================================
   Base
   ============================================= */
html, body {
    font-family: var(--font-family);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
h1:focus { outline: none; }

.valid.modified:not([type=checkbox]) { outline: 1px solid var(--color-success); }
.invalid { outline: 1px solid var(--color-danger); }
.validation-message { color: var(--color-danger); }

.blazor-error-boundary {
    background: #b32121;
    color: #fff;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
}
.blazor-error-boundary::after { content: "Ein Fehler ist aufgetreten." }

/* =============================================
   Sidebar / Drawer
   ============================================= */
.mud-drawer {
    border-right: 1px solid var(--color-border) !important;
    overflow-x: hidden !important;
}
.mud-drawer--closed .mud-nav-link-text {
    display: none !important;
}
.mud-drawer--closed .mud-navmenu .mud-divider {
    margin-left: 12px !important;
    margin-right: 12px !important;
}
.mud-nav-link {
    border-radius: var(--radius-md) !important;
    margin: 2px 8px !important;
    transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out) !important;
    white-space: nowrap !important;
    overflow: hidden !important;
}
.mud-nav-link:hover {
    background: var(--color-primary-tint) !important;
}
/* Indent child nav-links inside a nav-group (NOT the group header itself).
   The group header is a direct child button of .mud-nav-group; children live
   inside .mud-navgroup-collapse. Target those via the collapse wrapper. */
.mud-nav-group .mud-navgroup-collapse .mud-nav-link {
    padding-left: 44px !important;
    font-size: 0.875rem !important;
    position: relative;
}
.mud-nav-group .mud-navgroup-collapse .mud-nav-link::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 50%;
    width: 10px;
    height: 1px;
    background: var(--color-border-strong);
}
.mud-nav-link.active {
    background: var(--color-primary-tint-hover) !important;
    font-weight: 600 !important;
    color: var(--color-primary) !important;
}

/* =============================================
   AppBar
   ============================================= */
.mud-appbar {
    backdrop-filter: blur(10px) !important;
}

/* =============================================
   Cards & Papers
   ============================================= */
.mud-paper {
    border-radius: var(--radius-lg) !important;
    transition: box-shadow var(--duration-base) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.card-surface {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.stat-card {
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out);
}
.stat-card:hover {
    border-color: var(--color-primary-tint-hover);
    box-shadow: var(--shadow-primary) !important;
    transform: translateY(-2px);
}
.stat-card:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.stat-avatar {
    width: 48px !important;
    height: 48px !important;
    border-radius: var(--radius-lg) !important;
}

/* =============================================
   Page Header (title + actions)
   ============================================= */
.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}
.page-header__title {
    display: flex;
    flex-direction: column;
    min-width: 0;
    flex: 1 1 240px;
}
.page-header__title h4,
.page-header__title .mud-typography-h4 {
    font-weight: 700 !important;
    letter-spacing: -0.3px;
    line-height: 1.15;
    overflow: hidden;
    text-overflow: ellipsis;
}
.page-header__subtitle {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-top: 2px;
}
.page-header__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    min-width: 0;
}
.page-header__actions .mud-input-control {
    min-width: 200px;
}

/* Detail header variant (avatar + title + action) */
.detail-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}
.detail-header__info {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    flex: 1 1 260px;
}
.detail-header__text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.detail-header__text h4,
.detail-header__text .mud-typography-h4 {
    line-height: 1.15;
    word-break: break-word;
}
.detail-header__actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-left: auto;
}

/* Secondary toolbar inside tab panels */
.section-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}
.section-toolbar__info {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    flex: 1 1 auto;
}
.section-toolbar__actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* MudTabs content padding (PanelClass isn't reliably applied in MudBlazor 9,
   so we force it here so tab-panel content aligns with outer card insets). */
.mud-tabs.card-surface > .mud-tabs-panels > .mud-tab-panel {
    padding: 20px !important;
}
@media (max-width: 599.98px) {
    .mud-tabs.card-surface > .mud-tabs-panels > .mud-tab-panel {
        padding: 12px !important;
    }
}

/* =============================================
   Tables (MudTable)
   ============================================= */
.mud-table-container {
    border-radius: var(--radius-lg) !important;
}
.mud-table .mud-table-head .mud-table-cell {
    font-weight: 600 !important;
    font-size: 0.75rem !important;
    text-transform: uppercase !important;
    letter-spacing: 0.3px !important;
    color: var(--color-text-secondary) !important;
    background: var(--color-bg-subtle) !important;
    border-bottom: 2px solid var(--color-border) !important;
    padding: 10px 16px !important;
    white-space: nowrap !important;
}
.mud-table .mud-table-body .mud-table-row {
    transition: background var(--duration-fast) var(--ease-out);
}
.mud-table .mud-table-body .mud-table-row:hover {
    background: var(--color-primary-tint) !important;
}
.mud-table .mud-table-body .mud-table-row.mud-selected-item,
.mud-table .mud-table-body .mud-table-row.mud-selected {
    background: var(--color-primary-tint-hover) !important;
}
.mud-table .mud-table-body .mud-table-cell {
    padding: 8px 16px !important;
    vertical-align: middle;
}
/* Pager footer alignment */
.mud-table-pagination-actions { gap: 4px; }

/* Simple tables (Ansprechpartner etc.) */
.mud-simple-table th {
    font-weight: 600 !important;
    font-size: 0.75rem !important;
    text-transform: uppercase !important;
    letter-spacing: 0.3px !important;
    color: var(--color-text-secondary) !important;
    padding: 8px 12px !important;
    white-space: nowrap !important;
}
.mud-simple-table td {
    padding: 8px 12px !important;
    vertical-align: middle;
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* =============================================
   Tabs
   ============================================= */
.mud-tabs-header {
    border-bottom: 2px solid var(--color-border) !important;
}
.mud-tab.mud-tab-active {
    font-weight: 600 !important;
}

/* =============================================
   Buttons
   ============================================= */
.mud-button-filled {
    border-radius: var(--radius-md) !important;
    text-transform: none !important;
    font-weight: 600 !important;
    letter-spacing: 0.2px !important;
    box-shadow: var(--shadow-primary) !important;
}
.mud-button-filled:hover {
    box-shadow: var(--shadow-primary-hover) !important;
}
.mud-button-outlined {
    border-radius: var(--radius-md) !important;
    text-transform: none !important;
    font-weight: 500 !important;
}
.mud-button-text {
    text-transform: none !important;
}

/* Delete icon buttons */
.delete-btn {
    color: var(--color-text-muted) !important;
}
.delete-btn:hover {
    color: var(--color-danger) !important;
    background: rgba(239, 68, 68, 0.08) !important;
}

/* =============================================
   Chips
   ============================================= */
.mud-chip {
    border-radius: var(--radius-sm) !important;
    font-weight: 500 !important;
}
.chip-neutral {
    background: var(--color-chip-bg) !important;
    color: var(--color-chip-text) !important;
}
.chip-primary {
    background: #e0f2f1 !important;
    color: var(--color-primary) !important;
}
.chip-success {
    background: var(--color-success-bg) !important;
    color: var(--color-success-text) !important;
}
.chip-warning {
    background: var(--color-warning-bg) !important;
    color: var(--color-warning-text) !important;
}

/* =============================================
   Dialogs
   ============================================= */
.mud-dialog {
    border-radius: var(--radius-xl) !important;
}
.mud-dialog .mud-dialog-title {
    padding: 20px 24px 12px !important;
}
.mud-dialog .mud-dialog-content {
    padding: 0 24px 16px !important;
}
.mud-dialog .mud-dialog-actions {
    padding: 12px 24px 20px !important;
    gap: 8px;
}

/* =============================================
   Forms / Inputs
   ============================================= */
.mud-input-outlined .mud-input-outlined-border {
    border-radius: var(--radius-md) !important;
}
.mud-input-helper-text {
    margin-top: 4px !important;
}

/* =============================================
   Empty State
   ============================================= */
.empty-state {
    text-align: center;
    padding: 32px 20px;
    background: var(--color-bg-subtle);
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-md);
}
.empty-state .mud-icon-root {
    font-size: 3rem !important;
    margin-bottom: 8px;
    color: var(--color-text-muted) !important;
}
.empty-state__text {
    color: var(--color-text-secondary);
    margin-top: 4px;
}
.empty-state__hint {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    margin-top: 2px;
}

/* =============================================
   Snackbar
   ============================================= */
.mud-snackbar {
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-lg) !important;
}

/* =============================================
   Scrollbars
   ============================================= */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-strong) transparent;
}
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-thumb {
    background: var(--color-border-strong);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* =============================================
   Auth Layout (Login / AccessDenied)
   ============================================= */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--color-bg);
    padding: 16px;
    font-family: var(--font-family);
}
.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}
.auth-card--center {
    text-align: center;
}
.auth-header {
    text-align: center;
    margin-bottom: 32px;
}
.auth-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-primary-gradient);
    margin-bottom: 12px;
}
.auth-avatar--danger {
    background: linear-gradient(135deg, #dc2626, #ef4444);
}
.auth-title {
    font-family: var(--font-family);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 4px;
}
.auth-title--neutral {
    color: var(--color-text);
}
.auth-subtitle {
    font-family: var(--font-family);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0 0 28px;
}
.auth-error {
    background: var(--color-danger-bg);
    border: 1px solid #fecaca;
    color: var(--color-danger);
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: 20px;
}
.auth-form-group { margin-bottom: 20px; }
.auth-form-group label {
    display: block;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-body);
    margin-bottom: 6px;
}
.auth-input {
    width: 100%;
    padding: 12px 14px;
    font-size: 0.95rem;
    font-family: var(--font-family);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
    box-sizing: border-box;
    background: var(--color-surface);
    color: var(--color-text);
}
.auth-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}
.auth-input::placeholder { color: var(--color-text-muted); }
.auth-field-error {
    color: var(--color-danger);
    font-size: 0.8rem;
    margin-top: 4px;
    display: block;
}
.auth-check-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}
.auth-check {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}
.auth-check-label {
    font-family: var(--font-family);
    font-size: 0.875rem;
    color: var(--color-text-body);
    cursor: pointer;
    margin: 0;
}
.auth-button {
    display: block;
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-family);
    color: #fff;
    background: linear-gradient(135deg, #0f766e, #0d9488);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-fast) var(--ease-out);
    box-sizing: border-box;
}
.auth-button:hover {
    opacity: 0.92;
    color: #fff;
}
.auth-button:active { transform: scale(0.99); }

/* =============================================
   Utility
   ============================================= */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    max-height: 40px;
    overflow: hidden;
}

/* =============================================
   Responsive — Tablet (≤ 1200px)
   ============================================= */
@media (max-width: 1199.98px) {
    .page-header__actions .mud-input-control {
        min-width: 180px;
    }
    .mud-table .mud-table-cell { padding: 8px 12px !important; }
    .mud-table .mud-table-head .mud-table-cell { padding: 10px 12px !important; }
}

/* =============================================
   Responsive — Small Tablet (≤ 960px)
   ============================================= */
@media (max-width: 959.98px) {
    .page-header h4,
    .page-header__title h4,
    .page-header__title .mud-typography-h4 {
        font-size: 1.5rem !important;
    }
    .detail-header__text h4,
    .detail-header__text .mud-typography-h4 {
        font-size: 1.4rem !important;
    }
    .mud-appbar { padding: 0 12px !important; }
    .mud-table { font-size: 0.85rem !important; }
}

/* =============================================
   Responsive — Mobile (≤ 600px)
   ============================================= */
@media (max-width: 599.98px) {
    /* Layout + AppBar */
    .mud-main-content > .mud-container {
        padding: 12px !important;
        padding-top: 72px !important;
    }
    .mud-appbar { padding: 0 8px !important; }
    .mud-appbar .mud-button-root { padding: 4px 8px !important; }

    /* Page headers stack */
    .page-header { gap: 10px; margin-bottom: 16px; }
    .page-header__title { flex: 1 1 100%; }
    .page-header__title h4,
    .page-header__title .mud-typography-h4 { font-size: 1.3rem !important; }
    .page-header__actions {
        flex: 1 1 100%;
        flex-wrap: wrap;
    }
    .page-header__actions > * { flex: 1 1 auto; }
    .page-header__actions .mud-input-control {
        min-width: 0;
        width: 100%;
        max-width: none !important;
    }
    .page-header__actions .mud-button-root {
        flex: 0 0 auto;
    }

    /* Detail header stacks */
    .detail-header { gap: 10px; }
    .detail-header__info { flex: 1 1 100%; }
    .detail-header__actions {
        margin-left: 0;
        flex: 1 1 100%;
    }
    .detail-header__actions .mud-button-root { flex: 1 1 auto; }

    /* Section toolbar stacks gracefully */
    .section-toolbar { gap: 10px; }
    .section-toolbar__info { flex: 1 1 100%; }
    .section-toolbar__actions { flex: 1 1 100%; }
    .section-toolbar__actions .mud-button-root { flex: 1 1 auto; }

    /* Stat cards */
    .stat-card { padding: 16px !important; }
    .stat-avatar { width: 40px !important; height: 40px !important; }

    /* Tables */
    .mud-table { font-size: 0.8rem !important; }
    .mud-table .mud-table-head .mud-table-cell {
        font-size: 0.68rem !important;
        padding: 8px 10px !important;
    }
    .mud-table .mud-table-cell { padding: 8px 10px !important; }
    .mud-table-pagination {
        flex-wrap: wrap !important;
    }
    .mud-table-pagination-caption-container {
        flex-wrap: wrap;
    }

    /* Buttons shrink-to-fit */
    .mud-button-filled,
    .mud-button-outlined,
    .mud-button-text {
        font-size: 0.85rem !important;
    }
    .mud-button-root { min-height: 38px; }

    /* Dialogs go edge-to-edge */
    .mud-dialog {
        margin: 8px !important;
        max-width: calc(100vw - 16px) !important;
        max-height: calc(100vh - 16px) !important;
        border-radius: var(--radius-lg) !important;
    }
    .mud-dialog .mud-dialog-title { padding: 16px 16px 8px !important; }
    .mud-dialog .mud-dialog-content {
        padding: 0 16px 12px !important;
        max-height: calc(100vh - 170px) !important;
        overflow-y: auto !important;
    }
    .mud-dialog .mud-dialog-actions {
        padding: 10px 16px 14px !important;
        flex-wrap: wrap;
    }
    .mud-dialog .mud-dialog-actions .mud-button-root {
        flex: 1 1 auto;
    }

    /* Tabs scroll horizontally */
    .mud-tabs-header {
        overflow-x: auto !important;
        flex-wrap: nowrap !important;
    }
    .mud-tab {
        white-space: nowrap !important;
        min-width: unset !important;
        padding: 8px 14px !important;
        font-size: 0.85rem !important;
    }

    /* Auth cards */
    .auth-card { padding: 24px; }
}

/* =============================================
   Responsive — Very Narrow Mobile (≤ 380px)
   ============================================= */
@media (max-width: 380px) {
    .page-header__title h4,
    .page-header__title .mud-typography-h4 { font-size: 1.15rem !important; }
    .detail-header__text h4,
    .detail-header__text .mud-typography-h4 { font-size: 1.15rem !important; }
    .stat-avatar { width: 36px !important; height: 36px !important; }
    .mud-table .mud-table-head .mud-table-cell,
    .mud-table .mud-table-cell { padding: 6px 8px !important; }
}