/* ===========================================================================
   Online-Schichtplaner – Designsystem
   Farben, Abstände und Radien ausschließlich über CSS-Variablen.
   =========================================================================== */

:root {
    --color-primary: #1d4ed8;
    --color-primary-dark: #1e40af;
    --color-primary-light: #dbeafe;
    --color-secondary: #0f766e;
    --color-success: #15803d;
    --color-success-light: #dcfce7;
    --color-warning: #b45309;
    --color-warning-light: #fef3c7;
    --color-danger: #b91c1c;
    --color-danger-light: #fee2e2;
    --color-info: #0369a1;
    --color-info-light: #e0f2fe;
    --color-background: #f4f6fb;
    --color-surface: #ffffff;
    --color-surface-muted: #f8fafc;
    --color-text: #10182b;
    --color-text-muted: #5b6779;
    --color-border: #dde3ec;
    --color-sidebar: #0f1c33;
    --color-sidebar-text: #d7e0ef;
    --color-sidebar-active: #1e3a6d;
    --color-focus: #93c5fd;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 3rem;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 43, 0.06);
    --shadow-md: 0 10px 30px rgba(16, 24, 43, 0.08);

    --font-sans: "Segoe UI", "Helvetica Neue", system-ui, -apple-system, Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

    --sidebar-width: 264px;
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.55;
}

h1,
h2,
h3,
h4 {
    margin: 0 0 var(--space-3);
    line-height: 1.25;
    font-weight: 650;
}

h1 {
    font-size: 1.6rem;
}

h2 {
    font-size: 1.25rem;
}

h3 {
    font-size: 1.05rem;
}

p {
    margin: 0 0 var(--space-3);
}

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

a:hover {
    text-decoration: underline;
}

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

.hint {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-surface);
    padding: var(--space-2) var(--space-3);
    z-index: 100;
}

.skip-link:focus {
    left: var(--space-3);
    top: var(--space-3);
}

:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

/* ---------------------------------------------------------------- Layout -- */

.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    flex: 0 0 var(--sidebar-width);
    background: var(--color-sidebar);
    color: var(--color-sidebar-text);
    display: flex;
    flex-direction: column;
    padding: var(--space-5) var(--space-4);
    gap: var(--space-5);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: #ffffff;
    font-weight: 700;
    font-size: 1.05rem;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: #ffffff;
    font-weight: 700;
    letter-spacing: 0.5px;
    flex: 0 0 36px;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.nav-heading {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #8296b5;
    margin: var(--space-3) 0 var(--space-1);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius-sm);
    color: var(--color-sidebar-text);
    font-size: 0.94rem;
}

.nav-link:hover {
    background: var(--color-sidebar-active);
    text-decoration: none;
}

.nav-link.is-active {
    background: var(--color-primary);
    color: #ffffff;
    font-weight: 600;
}

.nav-icon {
    width: 1.2rem;
    text-align: center;
    opacity: 0.9;
}

.sidebar-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.user-card {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--color-sidebar-active);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 600;
    text-align: center;
    overflow: hidden;
}

.user-meta {
    display: flex;
    flex-direction: column;
    font-size: 0.85rem;
    min-width: 0;
}

.user-meta strong {
    color: #ffffff;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-meta .muted {
    color: #8fa3c0;
}

.content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 20;
}

.page-title {
    margin: 0;
    font-size: 1.15rem;
    flex: 1;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.85rem;
}

.nav-toggle {
    display: none;
}

.page {
    flex: 1;
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    max-width: 1400px;
    width: 100%;
}

.app-footer {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ------------------------------------------------------------ Komponenten -- */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.card-welcome {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.card-welcome h2 {
    margin-bottom: var(--space-1);
}

.card-narrow {
    max-width: 720px;
}

.grid {
    display: grid;
    gap: var(--space-4);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-stats {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    box-shadow: var(--shadow-sm);
}

.stat-label {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.stat-value {
    font-size: 1.9rem;
    font-weight: 700;
    line-height: 1.1;
}

.stat-success {
    border-left-color: var(--color-success);
}

.stat-info {
    border-left-color: var(--color-info);
}

.stat-danger {
    border-left-color: var(--color-danger);
}

.stat-warning {
    border-left-color: var(--color-warning);
}

.shift-card {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-3);
    border-left: 4px solid var(--shift-color, var(--color-primary));
    background: var(--color-surface-muted);
    border-radius: var(--radius-sm);
    padding: var(--space-4);
}

.shift-main,
.shift-time {
    display: flex;
    flex-direction: column;
}

.shift-time {
    text-align: right;
}

.empty-state {
    color: var(--color-text-muted);
    background: var(--color-surface-muted);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-4);
    font-size: 0.92rem;
}

.list {
    margin: 0;
    padding-left: 1.1rem;
}

.list li {
    margin-bottom: var(--space-2);
}

.data-list {
    display: grid;
    grid-template-columns: minmax(140px, 0.6fr) 1fr;
    gap: var(--space-2) var(--space-4);
    margin: 0 0 var(--space-4);
}

.data-list dt {
    color: var(--color-text-muted);
    font-size: 0.88rem;
}

.data-list dd {
    margin: 0;
    font-weight: 500;
}

.notification-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--space-3);
}

.notification {
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-info);
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface-muted);
}

.notification p {
    margin: var(--space-1) 0 0;
    font-size: 0.92rem;
}

.notification-head {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
}

.notification-success {
    border-left-color: var(--color-success);
}

.notification-warning {
    border-left-color: var(--color-warning);
}

.notification-error {
    border-left-color: var(--color-danger);
}

/* ---------------------------------------------------------------- Buttons -- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.55rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-secondary);
    color: #ffffff;
}

.btn-secondary:hover {
    background: #0b5e57;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-ghost:hover {
    background: var(--color-surface-muted);
}

.sidebar .btn-ghost {
    color: var(--color-sidebar-text);
    border-color: rgba(255, 255, 255, 0.25);
}

.sidebar .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
}

.btn-danger {
    background: var(--color-danger);
    color: #ffffff;
}

.btn-danger:hover {
    background: #991b1b;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.82rem;
}

.btn-icon {
    padding: 0.4rem 0.6rem;
    background: transparent;
    border-color: var(--color-border);
}

/* --------------------------------------------------------------- Formulare -- */

.form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.form-field label {
    font-size: 0.88rem;
    font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
input[type="time"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    font: inherit;
    font-size: 0.94rem;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea {
    min-height: 90px;
    resize: vertical;
}

.field-error {
    margin: 0;
    color: var(--color-danger);
    font-size: 0.82rem;
}

/* --------------------------------------------------- Meldungen und Badges -- */

.alert {
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    font-size: 0.92rem;
    border: 1px solid transparent;
}

.alert-success {
    background: var(--color-success-light);
    border-color: #86efac;
    color: #14532d;
}

.alert-warning {
    background: var(--color-warning-light);
    border-color: #fcd34d;
    color: #78350f;
}

.alert-danger {
    background: var(--color-danger-light);
    border-color: #fca5a5;
    color: #7f1d1d;
}

.alert-info {
    background: var(--color-info-light);
    border-color: #7dd3fc;
    color: #075985;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.badge-neutral {
    background: var(--color-surface-muted);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.badge-success {
    background: var(--color-success-light);
    color: #14532d;
}

.badge-danger {
    background: var(--color-danger-light);
    color: #7f1d1d;
}

.badge-warning {
    background: var(--color-warning-light);
    color: #78350f;
}

/* --------------------------------------------------------------- Tabellen -- */

.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.table th,
.table td {
    padding: 0.6rem 0.7rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.table thead th {
    background: var(--color-surface-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.table tbody tr:hover {
    background: var(--color-surface-muted);
}

.table .is-own {
    background: var(--color-primary-light);
    font-weight: 600;
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.inline-form {
    display: inline-flex;
    margin: 0;
}

/* ---------------------------------------------------------------- Kalender -- */

.calendar {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 4px;
}

.calendar-weekday {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--space-1) 0;
}

.calendar-day {
    min-height: 84px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.8rem;
    text-align: left;
    cursor: pointer;
}

.calendar-day:hover {
    border-color: var(--color-primary);
}

.calendar-day.is-outside {
    background: var(--color-surface-muted);
    color: var(--color-text-muted);
    cursor: default;
}

.calendar-day.is-today {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.calendar-day.is-selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.calendar-day .day-number {
    font-weight: 600;
    font-size: 0.85rem;
}

.calendar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.availability-AVAILABLE {
    background: var(--color-success-light);
    border-color: #86efac;
}

.availability-PREFERRED {
    background: var(--color-primary-light);
    border-color: #93c5fd;
}

.availability-UNAVAILABLE {
    background: var(--color-danger-light);
    border-color: #fca5a5;
}

.calendar-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.calendar-toolbar h2 {
    margin: 0;
    font-size: 1.1rem;
}

.calendar-day {
    color: inherit;
    text-decoration: none;
    overflow: hidden;
}

.calendar-day:hover {
    text-decoration: none;
}

.day-status {
    font-weight: 600;
    font-size: 0.72rem;
}

.day-time,
.day-comment {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.legend-dot-empty {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.weekday-fieldset {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin: 0;
}

.weekday-fieldset legend {
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0 var(--space-2);
}

.weekday-fieldset label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.9rem;
}

/* Stammdatenverwaltung */
.color-swatch {
    display: inline-block;
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
    vertical-align: middle;
}

.color-input {
    width: 100%;
    height: 38px;
    padding: 2px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
}

.row-edit {
    margin-top: var(--space-2);
    font-size: 0.88rem;
}

.row-edit summary {
    cursor: pointer;
    color: var(--color-primary);
    font-weight: 600;
}

.row-edit summary:hover {
    text-decoration: underline;
}

.row-edit .form {
    margin-top: var(--space-3);
    padding: var(--space-3);
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    min-width: 320px;
}

.assigned-list {
    list-style: none;
    margin: var(--space-2) 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.85rem;
}

.assigned-list li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.checkbox-line {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: 0.85rem;
    font-weight: 400;
}

/* ------------------------------------------------- Anmeldung & Fehlerseite -- */

.auth-body {
    background: linear-gradient(160deg, #0f1c33 0%, #17325c 55%, #1d4ed8 130%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
}

.auth-wrapper {
    width: 100%;
    max-width: 480px;
}

.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.auth-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.auth-brand h1 {
    margin: 0;
    font-size: 1.35rem;
}

.auth-brand .muted {
    font-size: 0.9rem;
}

.auth-links {
    font-size: 0.88rem;
    text-align: center;
}

.auth-footer {
    font-size: 0.78rem;
    text-align: center;
    margin: 0;
}

.error-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-6);
    background: var(--color-background);
}

.error-wrapper {
    width: 100%;
    max-width: 520px;
}

.error-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-6);
    text-align: center;
}

.error-status {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-3);
}

.error-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-5);
}

/* ------------------------------------------------------------- Responsive -- */

@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        z-index: 50;
        left: 0;
        top: 0;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        box-shadow: var(--shadow-md);
    }

    .sidebar.is-open {
        transform: translateX(0);
    }

    .nav-toggle {
        display: inline-flex;
    }

    .page {
        padding: var(--space-4);
    }

    .topbar {
        padding: var(--space-3) var(--space-4);
    }

    .topbar-user .muted {
        display: none;
    }
}

@media (max-width: 640px) {
    .calendar-day {
        min-height: 60px;
        padding: var(--space-1);
    }

    .calendar-day .day-number {
        font-size: 0.78rem;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .data-list {
        grid-template-columns: 1fr;
    }

    .data-list dd {
        margin-bottom: var(--space-2);
    }

    h1 {
        font-size: 1.35rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }
}

@media print {
    .sidebar,
    .topbar,
    .app-footer,
    .btn {
        display: none !important;
    }

    .page {
        padding: 0;
    }

    body {
        background: #ffffff;
    }
}