/* ============================================================================
   Modern Form Inputs System - نظام حقول الإدخال الحديث
   UI/UX Refactored for Cleanliness, Accessibility, and Modern Aesthetics
   ============================================================================ */

:root {
    /* Modern Color Palette */
    --primary-color: #274060;
    --primary-hover: #1a2a3a;
    --focus-ring: rgba(39, 64, 96, 0.15);
    
    --input-bg: #ffffff;
    --input-bg-disabled: #f8fafc;
    
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --border-focus: #274060;
    
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-placeholder: #94a3b8;
    
    --danger-color: #ef4444;
    --success-color: #10b981;
    
    /* Spacing & Sizing */
    --input-height: 46px;
    --input-radius: 8px;
    --input-padding-x: 1rem;
    --input-font-size: 0.95rem;
    
    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================
   Form Group Layout
   ============================================================================ */

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

/* ============================================================================
   Labels
   ============================================================================ */

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition);
}

.form-group label .required {
    color: var(--danger-color);
    font-size: 1.2em;
    line-height: 0;
}

.form-group label i {
    color: var(--text-secondary);
    font-size: 0.85em;
}

/* ============================================================================
   Base Input Styles
   ============================================================================ */

.form-input,
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="tel"],
.form-group input[type="url"],
.form-group input[type="search"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group input[type="datetime-local"],
.form-group input[type="month"],
.form-group input[type="week"],
.form-group select,
.form-textarea,
.form-group textarea {
    width: 100%;
    height: var(--input-height);
    padding: 0 var(--input-padding-x);
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--input-radius);
    color: var(--text-primary);
    font-size: var(--input-font-size);
    font-family: inherit;
    line-height: normal;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    appearance: none;
    -webkit-appearance: none;
}

.form-textarea,
.form-group textarea {
    height: auto;
    min-height: 120px;
    padding: 0.75rem var(--input-padding-x);
    resize: vertical;
    line-height: 1.6;
}

/* Placeholders */
::placeholder {
    color: var(--text-placeholder);
    opacity: 1;
}

/* Hover State */
.form-input:hover:not(:disabled):not(:focus),
.form-group input:hover:not(:disabled):not(:focus),
.form-group select:hover:not(:disabled):not(:focus),
.form-group textarea:hover:not(:disabled):not(:focus) {
    border-color: var(--border-hover);
}

/* Focus State */
.form-input:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 4px var(--focus-ring);
}

/* Disabled State */
.form-input:disabled,
.form-group input:disabled,
.form-group select:disabled,
.form-group textarea:disabled {
    background-color: var(--input-bg-disabled);
    color: var(--text-placeholder);
    cursor: not-allowed;
    border-color: var(--border-color);
    box-shadow: none;
}

/* ============================================================================
   Select Input Customization
   ============================================================================ */

.form-select,
.form-group select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: left 1rem center; /* Adjusted for RTL: icon on left */
    background-size: 1rem;
    padding-left: 2.5rem; /* Space for icon */
}

/* ============================================================================
   Input with Icon
   ============================================================================ */

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    font-size: 1rem;
    z-index: 2;
}

/* Default icon position (Visual Right in LTR, Visual Left in RTL usually)
   For RTL (Arabic), "right" CSS property is the visual right side.
*/
.input-with-icon i {
    right: 1rem;
}
.input-with-icon input {
    padding-right: 2.75rem;
}

/* Icon Left */
.input-with-icon.icon-left i {
    right: auto;
    left: 1rem;
}
.input-with-icon.icon-left input {
    padding-right: var(--input-padding-x);
    padding-left: 2.75rem;
}

/* ============================================================================
   Validation States
   ============================================================================ */

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea,
.form-input.invalid {
    border-color: var(--danger-color);
    background-color: #fef2f2;
}

.form-group.has-error input:focus,
.form-group.has-error select:focus,
.form-group.has-error textarea:focus,
.form-input.invalid:focus {
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15);
}

.form-error {
    display: none; /* Hidden by default */
    align-items: center;
    gap: 0.375rem;
    color: var(--danger-color);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

.form-group.has-error .form-error,
.form-error.show {
    display: flex;
}

.form-success {
    display: none;
    margin-top: 0.375rem;
    font-size: 0.85rem;
    color: var(--success-color);
    font-weight: 500;
}

.form-group.success .form-success {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* ============================================================================
   Checkboxes & Radios
   ============================================================================ */

.checkbox-group,
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-primary);
    user-select: none;
    padding: 0.25rem 0;
}

.checkbox-label input[type="checkbox"],
.radio-label input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 1.5px solid var(--border-color);
    background-color: #fff;
    margin: 0;
    transition: var(--transition);
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"] {
    border-radius: 4px;
}

.radio-label input[type="radio"] {
    border-radius: 50%;
}

/* Checked State */
.checkbox-label input[type="checkbox"]:checked,
.radio-label input[type="radio"]:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Checkmark Icon */
.checkbox-label input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0.35rem;
    height: 0.65rem;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -60%) rotate(45deg);
}

/* Radio Dot */
.radio-label input[type="radio"]:checked::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0.5rem;
    height: 0.5rem;
    background-color: white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

/* Focus State for Check/Radio */
.checkbox-label input:focus,
.radio-label input:focus {
    box-shadow: 0 0 0 4px var(--focus-ring);
    border-color: var(--primary-color);
}

/* ============================================================================
   Toggle Switch
   ============================================================================ */

.switch-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: .3s;
    border-radius: 34px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s cubic-bezier(0.4, 0.0, 0.2, 1);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.switch input:checked + .switch-slider {
    background-color: var(--primary-color);
}

.switch input:checked + .switch-slider:before {
    transform: translateX(20px);
}

.switch input:focus + .switch-slider {
    box-shadow: 0 0 0 4px var(--focus-ring);
}

/* ============================================================================
   Range Input
   ============================================================================ */
.range-wrapper {
    width: 100%;
    padding: 0.5rem 0;
}

.range-input {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 4px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: transform 0.1s;
    margin-top: -7px; /* Align thumb with track if needed */
}

/* Firefox */
.range-input::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.range-input::-webkit-slider-thumb:hover,
.range-input::-moz-range-thumb:hover {
    transform: scale(1.1);
}

.range-value {
    display: block;
    margin-top: 0.5rem;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* ============================================================================
   File Input (Modern Dropzone)
   ============================================================================ */

.file-input-wrapper {
    position: relative;
    width: 100%;
}

.file-input-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    border: 2px dashed var(--border-color);
    border-radius: var(--input-radius);
    background-color: #f8fafc;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    gap: 0.75rem;
}

.file-input-label:hover {
    border-color: var(--primary-color);
    background-color: #f1f5f9;
}

.file-input-label i {
    font-size: 2rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.file-input-label:hover i {
    color: var(--primary-color);
    transform: scale(1.1);
}

.file-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* ============================================================================
   Input Groups
   ============================================================================ */

.input-group {
    display: flex;
    width: 100%;
}

.input-group .form-input {
    border-radius: 0;
}

.input-group .form-input:first-child {
    border-top-right-radius: var(--input-radius);
    border-bottom-right-radius: var(--input-radius);
}

.input-group .form-input:last-child {
    border-top-left-radius: var(--input-radius);
    border-bottom-left-radius: var(--input-radius);
}

.input-group-addon {
    display: flex;
    align-items: center;
    padding: 0 1rem;
    background-color: #f1f5f9;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
}

.input-group-addon:first-child {
    border-left: 0;
    border-top-right-radius: var(--input-radius);
    border-bottom-right-radius: var(--input-radius);
}

.input-group-addon:last-child {
    border-right: 0;
    border-top-left-radius: var(--input-radius);
    border-bottom-left-radius: var(--input-radius);
}

/* ============================================================================
   Chips / Tags Input
   ============================================================================ */

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--input-radius);
    background-color: var(--input-bg);
    min-height: var(--input-height);
    transition: var(--transition);
}

.chips:focus-within {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 4px var(--focus-ring);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    background-color: #e0f2fe;
    color: #0369a1;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
}

.chip .remove {
    background: transparent;
    border: none;
    color: currentColor;
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.chip .remove:hover {
    opacity: 1;
}

.chips input {
    border: none;
    outline: none;
    padding: 0.25rem 0.5rem;
    flex: 1;
    min-width: 60px;
    font-size: 0.95rem;
}

/* Chips Add Button */
.chips .add-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    height: 28px;
    padding: 0 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: #f8fafc;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
}

.chips .add-btn:hover {
    background: #f1f5f9;
    border-color: var(--primary-color);
}

/* Form Helper Text */
.form-helper {
    display: block;
    margin-top: 0.375rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --input-height: 44px;
    }
}

/* ============================================================================
   Print Styles
   ============================================================================ */
@media print {
    .form-input,
    .form-group input,
    .form-group select,
    .form-group textarea {
        border: 1px solid #000;
        box-shadow: none;
        background: #fff !important;
    }

    .form-error,
    .form-success {
        display: none;
    }
}