/* 
 * Zeiterfassung - Responsive Stylesheet
 * Moderne und übersichtliche UI
 */

/* === CSS Reset & Grundlagen === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === Header === */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

.user-menu {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border-color);
}

.user-name {
    font-weight: 600;
    color: var(--text-muted);
}

/* === Main Content === */
.main {
    min-height: calc(100vh - 140px);
    padding: 2rem 0;
}

/* === Cards === */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.card h2 {
    margin-bottom: 1rem;
    color: var(--text-color);
    font-size: 1.5rem;
}

.card h3 {
    margin: 1rem 0 0.5rem;
    color: var(--text-color);
    font-size: 1.2rem;
}

.card-primary {
    border-left: 4px solid var(--primary-color);
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.5;
}

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

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

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

.btn-secondary:hover {
    background-color: #475569;
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #059669;
}

.btn-danger {
    background-color: var(--error-color);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* === Forms === */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 0.625rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: normal;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* === Tables === */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.table thead {
    background-color: var(--bg-color);
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-color);
}

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

.table-compact th,
.table-compact td {
    padding: 0.5rem;
    font-size: 0.9rem;
}

.table .actions {
    white-space: nowrap;
}

/* === Alerts === */
.alert {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--error-color);
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--primary-color);
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning-color);
}

/* === Badges === */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 999px;
    white-space: nowrap;
}

.badge-primary {
    background-color: var(--primary-color);
    color: white;
}

.badge-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.badge-success {
    background-color: var(--success-color);
    color: white;
}

.badge-warning {
    background-color: var(--warning-color);
    color: white;
}

/* === Progress Bar === */
.progress-bar {
    width: 100%;
    height: 1.5rem;
    background-color: var(--bg-color);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 1rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    transition: width 0.5s ease;
}

/* === Stats Grid === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.stat-card h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.stat-month {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.stat-row:last-of-type {
    border-bottom: none;
}

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

.stat-value {
    font-weight: 700;
    color: var(--text-color);
}

/* === Summary Grid === */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.summary-item {
    text-align: center;
    padding: 1rem;
    background-color: var(--bg-color);
    border-radius: var(--radius);
}

.summary-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

/* === Day Section === */
.day-section {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.day-section:last-child {
    border-bottom: none;
}

.day-section h3 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background-color: var(--bg-color);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
}

.day-total {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* === Login Page === */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 2rem;
}

.login-box {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.login-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-weight: normal;
}

.login-form {
    margin-bottom: 1.5rem;
}

.login-info {
    padding: 1rem;
    background-color: var(--bg-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    text-align: center;
}

.login-info code {
    background-color: var(--card-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
}

/* === Footer === */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* === Utility Classes === */
.text-center {
    text-align: center;
}

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

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

.text-small {
    font-size: 0.875rem;
}

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

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* === Info Table === */
.info-table {
    width: 100%;
}

.info-table th {
    text-align: left;
    padding: 0.75rem;
    font-weight: 600;
    width: 35%;
    background-color: var(--bg-color);
}

.info-table td {
    padding: 0.75rem;
}

.info-table tr {
    border-bottom: 1px solid var(--border-color);
}

/* === Quick Actions === */
.quick-actions {
    margin: 2rem 0;
    text-align: center;
}

/* === Responsive Design === */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        flex-direction: column;
        width: 100%;
    }
    
    .user-menu {
        flex-direction: column;
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-top: 1rem;
        margin-top: 1rem;
        padding-left: 0;
        margin-left: 0;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
    }
    
    .stats-grid,
    .summary-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: 0.875rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
    }
    
    .day-section h3 {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .login-container {
        padding: 1rem;
    }
    
    .login-box {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .main {
        padding: 1rem 0;
    }
    
    .card {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* === Print Styles === */
@media print {
    .header,
    .footer,
    .quick-actions,
    .nav,
    .btn,
    .form-actions {
        display: none;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--border-color);
        page-break-inside: avoid;
    }
    
    body {
        background: white;
    }
}