/**
 * CMS Source - Forms Component
 * @version 1.0.0
 */

/* =========================================================================
   FORM GROUPS
   ========================================================================= */
.form-group {
    margin-bottom: var(--spacing-4);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-4);
}

/* =========================================================================
   LABELS
   ========================================================================= */
.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.form-label-required::after {
    content: ' *';
    color: var(--danger);
}

/* =========================================================================
   INPUT BASE
   ========================================================================= */
.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-family: inherit;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form-control::placeholder {
    color: var(--text-light);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--bg-secondary);
    opacity: 0.7;
    cursor: not-allowed;
}

/* =========================================================================
   INPUT SIZES
   ========================================================================= */
.form-control-sm {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
}

.form-control-lg {
    padding: var(--spacing-4) var(--spacing-5);
    font-size: var(--font-size-lg);
}

/* =========================================================================
   VALIDATION STATES
   ========================================================================= */
.form-control.is-valid {
    border-color: var(--success);
}

.form-control.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-error,
.invalid-feedback {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--danger);
}

.form-success,
.valid-feedback {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--success);
}

.form-hint {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* =========================================================================
   TEXTAREA
   ========================================================================= */
textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

textarea.form-control-sm {
    min-height: 80px;
}

textarea.form-control-lg {
    min-height: 160px;
}

/* =========================================================================
   SELECT
   ========================================================================= */
select.form-control {
    padding-right: var(--spacing-10);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-3) center;
    background-size: 16px;
}

select.form-control:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23667eea' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}

select[multiple].form-control {
    padding-right: var(--spacing-4);
    background-image: none;
    height: auto;
}

/* =========================================================================
   CHECKBOX & RADIO
   ========================================================================= */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.form-check-input {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    cursor: pointer;
    appearance: none;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-dark);
    transition: all var(--transition-fast);
}

.form-check-input[type="checkbox"] {
    border-radius: var(--border-radius-sm);
}

.form-check-input[type="radio"] {
    border-radius: var(--border-radius-full);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-input[type="checkbox"]:checked {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 12px;
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'%3E%3Ccircle cx='4' cy='4' r='4' fill='white'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

.form-check-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-check-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
}

.form-check-input:disabled + .form-check-label {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =========================================================================
   SWITCH TOGGLE
   ========================================================================= */
.form-switch {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.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(--gray-300);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
}

.switch .slider::before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--white);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

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

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

.switch input:focus + .slider {
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

.switch input:disabled + .slider {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =========================================================================
   INPUT GROUP
   ========================================================================= */
.input-group {
    display: flex;
}

.input-group .form-control {
    flex: 1;
    min-width: 0;
}

.input-group .form-control:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group .form-control:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: 0;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.input-group-text:first-child {
    border-right: 0;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group-text:last-child {
    border-left: 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.input-group .btn:first-child {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group .btn:last-child {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* =========================================================================
   FILE INPUT
   ========================================================================= */
.form-file {
    position: relative;
}

.form-file-input {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.form-file-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--bg-primary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-file-label:hover {
    border-color: var(--primary);
    background-color: rgba(var(--primary-rgb), 0.05);
}

.form-file-input:focus + .form-file-label {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

/* =========================================================================
   RANGE INPUT
   ========================================================================= */
.form-range {
    width: 100%;
    height: 6px;
    background: var(--gray-200);
    border-radius: var(--border-radius-full);
    appearance: none;
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

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

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
}

/* =========================================================================
   SEARCH INPUT
   ========================================================================= */
.search-box {
    position: relative;
}

.search-box .form-control {
    padding-left: var(--spacing-10);
}

.search-box .search-icon {
    position: absolute;
    left: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

/* =========================================================================
   CHARACTER COUNTER
   ========================================================================= */
.char-counter {
    display: block;
    text-align: right;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--spacing-1);
}

.char-counter.warning {
    color: var(--warning);
}

.char-counter.danger {
    color: var(--danger);
}