/* Reset und Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066cc;
    --primary-dark: #004499;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-color: #dee2e6;
    --input-border: #ced4da;
    --input-focus: #80bdff;
    --text-color: #212529;
    --text-muted: #6c757d;
    --background-color: #ffffff;
    --container-bg: #f8f9fa;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --border-radius: 0.375rem;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.5;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--container-bg);
    margin: 0;
    padding: 0;
}

/* Animation Transitions for Dynamic Form */
.form-section {
    transition: opacity 0.3s ease-in-out, max-height 0.3s ease-in-out, margin 0.3s ease-in-out;
    overflow: hidden;
}

.form-section.hide {
    opacity: 0;
    max-height: 0;
    margin: 0;
    padding: 0;
}

.form-section.show {
    opacity: 1;
    max-height: 2000px;
    /* Large enough to accommodate content */
}

/* Illness Type Selection Styling */
.illness-type-selection {
    background: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.illness-type-selection .radio-item {
    display: inline-flex;
    align-items: center;
    margin-right: var(--spacing-xl);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    transition: background-color 0.2s ease;
}

.illness-type-selection .radio-item:hover {
    background-color: rgba(0, 102, 204, 0.1);
}

.illness-type-selection input[type="radio"] {
    margin-right: var(--spacing-sm);
    transform: scale(1.2);
}

.illness-type-selection label {
    font-weight: 500;
    cursor: pointer;
    user-select: none;
}

/* Child Section Styling */
.child-section {
    border-left: 4px solid var(--warning-color);
    background: linear-gradient(to right, rgba(255, 193, 7, 0.1), transparent);
}

.child-section h2 {
    color: #856404;
}

/* Employee Section Specific Styling */
.employee-section {
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(to right, rgba(0, 102, 204, 0.05), transparent);
}

/* Dynamic Label Text Based on Type Selection */
body.employee-mode .child-text {
    display: none;
}

body.child-mode .employee-text {
    display: none;
}

/* Default: show employee text */
.child-text {
    display: none;
}

/* Screen Reader Only Class */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Container Layout */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
    background-color: var(--background-color);
    min-height: 100vh;
    box-shadow: var(--shadow);
}

/* Header */
header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    border-bottom: 2px solid var(--primary-color);
}

h1 {
    color: var(--primary-color);
    font-size: 2.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 0;
}

/* Form Layout */
#krankmeldungForm {
    margin-bottom: var(--spacing-xl);
}

.form-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-section h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

/* Labels */
label {
    display: block;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.required-indicator {
    color: var(--danger-color);
    font-weight: bold;
    margin-left: var(--spacing-xs);
}

.optional {
    color: var(--text-muted);
    font-weight: normal;
    font-style: italic;
}

/* Input Fields */
input[type="text"],
input[type="email"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--background-color);
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
    border-color: var(--input-focus);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Remove aggressive validation styling */
input[type="text"]:invalid,
input[type="email"]:invalid,
input[type="date"]:invalid,
select:invalid {
    border-color: var(--input-border);
}

input[type="text"]:valid,
input[type="email"]:valid,
input[type="date"]:valid,
select:valid {
    border-color: var(--input-border);
}

/* Date Input Styling */
input[type="date"] {
    position: relative;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.875rem;
}

/* Webkit Calendar Picker Styling (Chrome, Safari, Edge) */
input[type="date"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    margin-left: 0.5rem;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

input[type="date"]::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
    background-color: rgba(0, 102, 204, 0.1);
    border-radius: 0.25rem;
}

/* Firefox Date Input */
input[type="date"]::-moz-calendar-picker-indicator {
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    margin-left: 0.5rem;
}

/* Enhanced Calendar Popup Styling */
input[type="date"]:focus::-webkit-calendar-picker-indicator {
    background-color: rgba(0, 102, 204, 0.15);
    border-radius: 0.25rem;
}

/* Calendar Popup Enhancement - Webkit browsers */
input[type="date"]::-webkit-datetime-edit {
    font-size: 1.1rem;
    padding: 0.25rem;
}

input[type="date"]::-webkit-datetime-edit-fields-wrapper {
    padding: 0.25rem;
}

input[type="date"]::-webkit-datetime-edit-text {
    color: var(--text-color);
    padding: 0 0.25rem;
}

input[type="date"]::-webkit-datetime-edit-month-field,
input[type="date"]::-webkit-datetime-edit-day-field,
input[type="date"]::-webkit-datetime-edit-year-field {
    font-size: 1.1rem;
    padding: 0.25rem 0.125rem;
    border-radius: 0.25rem;
    transition: background-color 0.2s ease;
}

input[type="date"]::-webkit-datetime-edit-month-field:focus,
input[type="date"]::-webkit-datetime-edit-day-field:focus,
input[type="date"]::-webkit-datetime-edit-year-field:focus {
    background-color: rgba(0, 102, 204, 0.1);
    outline: none;
}

/* Mobile-specific improvements */
@media (max-width: 768px) {
    input[type="date"] {
        font-size: 1.2rem;
        padding: 1rem;
        min-height: 3rem;
    }

    input[type="date"]::-webkit-calendar-picker-indicator {
        font-size: 1.4rem;
        padding: 0.5rem;
        margin-left: 0.75rem;
    }

    input[type="date"]::-webkit-datetime-edit {
        font-size: 1.2rem;
        padding: 0.5rem;
    }

    input[type="date"]::-webkit-datetime-edit-month-field,
    input[type="date"]::-webkit-datetime-edit-day-field,
    input[type="date"]::-webkit-datetime-edit-year-field {
        font-size: 1.2rem;
        padding: 0.5rem 0.25rem;
        min-width: 2.5rem;
    }
}

/* Select Dropdown */
select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1rem;
    padding-right: 2.5rem;
}

/* Textarea */
textarea {
    resize: vertical;
    min-height: 100px;
}

/* Radio Buttons */
fieldset {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

legend {
    font-weight: 600;
    color: var(--text-color);
    padding: 0 var(--spacing-sm);
}

.radio-group {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.radio-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

input[type="radio"] {
    width: auto;
    margin: 0;
    transform: scale(1.2);
}

.radio-item label {
    margin-bottom: 0;
    font-weight: normal;
    cursor: pointer;
}

/* Error Messages */
.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    display: none;
}

.error-message.show {
    display: block;
}

/* Remove aggressive error styling */
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
    border-color: var(--input-border);
    box-shadow: none;
}

/* Help Text */
.help-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

#character-count {
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    border: 1px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    border-radius: var(--border-radius);
    transition: all 0.15s ease-in-out;
}

.btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* Custom Edit & Delete Button Styles */
.btn-edit {
    background: #5CA2EE;
    color: #ffffff;
    border: 1px solid #4a91dd;
}

.btn-edit:hover:not(:disabled) {
    background: #4a91dd;
    border-color: #3d7ec9;
}

.btn-delete {
    background: #EE5C5C;
    color: #ffffff;
    border: 1px solid #e74545;
}

.btn-delete:hover:not(:disabled) {
    background: #e74545;
    border-color: #e12e2e;
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--secondary-color);
    color: #fff;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-end;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* Loading Indicator */
.loading-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-lg);
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Success Message */
.success-message {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.success-message h2 {
    color: var(--success-color);
    margin-bottom: var(--spacing-md);
}

/* Error Message Global */
.error-message-global {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.error-message-global h2 {
    color: var(--danger-color);
    margin-bottom: var(--spacing-md);
}

/* Footer */
footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
        margin: 0;
    }

    h1 {
        font-size: 1.75rem;
    }

    .form-section {
        padding: var(--spacing-md);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }

    .radio-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-xs);
    }

    h1 {
        font-size: 1.5rem;
    }

    .form-section {
        padding: var(--spacing-sm);
    }

    input[type="text"],
    input[type="email"],
    input[type="date"],
    select,
    textarea {
        padding: 0.625rem;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
    }

    .container {
        box-shadow: none;
        max-width: none;
    }

    .form-actions,
    .loading-indicator,
    .success-message,
    .error-message-global {
        display: none;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --danger-color: #ff0000;
        --success-color: #008000;
        --border-color: #000000;
        --input-border: #000000;
    }
}

/* Readonly field styling for follow-up validation */
.form-group input.readonly-field {
    background-color: #f8f9fa;
    color: #6c757d;
    border-color: #dee2e6;
    cursor: not-allowed;
}

.form-group input.readonly-field:focus {
    border-color: #dee2e6;
    box-shadow: none;
}

/* Follow-up info alert styling */
#followUpInfo {
    margin-top: 0.5rem;
    padding: 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

#followUpInfo.alert-info {
    background-color: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

#followUpInfo.alert-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

#followUpInfo.alert-warning {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
}

#followUpInfo.alert-error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}