/*
 * SkyRoute Form Styles
 * Form elements, inputs, selects
 */

/* ============================================
   FORM LAYOUT
   ============================================ */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

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

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-label .required {
    color: var(--danger);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.form-error {
    font-size: 0.75rem;
    color: var(--danger);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.form-actions {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-color);
}

/* ============================================
   INPUT FIELDS
   ============================================ */
.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

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

.form-control:hover {
    border-color: var(--border-light);
}

.form-control:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(196, 146, 42, 0.15);
}

.form-control:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--bg-secondary);
}

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

.form-control.error:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

/* Input with icon */
.input-group {
    position: relative;
}

.input-group .form-control {
    padding-left: 44px;
}

.input-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
}

.input-group:focus-within .input-icon {
    color: var(--accent-primary);
}

/* Input with right addon */
.input-group-addon {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* ============================================
   SELECT
   ============================================ */
.form-select {
    appearance: none;
    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='%2394a3b8' 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: right 12px center;
    padding-right: 40px;
    cursor: pointer;
}

.form-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--space-2);
}

/* ============================================
   TEXTAREA
   ============================================ */
textarea.form-control {
    min-height: 100px;
    resize: vertical;
    line-height: 1.6;
}

/* ============================================
   CHECKBOX & RADIO
   ============================================ */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.form-check-input {
    width: 18px;
    height: 18px;
    appearance: none;
    background: var(--bg-primary);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    flex-shrink: 0;
}

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

.form-check-input:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 5px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(196, 146, 42, 0.15);
}

/* Radio button */
.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input[type="radio"]:checked::after {
    width: 8px;
    height: 8px;
    background: white;
    border: none;
    border-radius: 50%;
    transform: none;
    left: 3px;
    top: 3px;
}

.form-check-label {
    font-size: 0.9375rem;
    color: var(--text-primary);
    user-select: none;
}

/* Inline checkboxes */
.form-check-inline {
    display: inline-flex;
    margin-right: var(--space-4);
}

/* ============================================
   TOGGLE SWITCH
   ============================================ */
.toggle {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.toggle-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    width: 44px;
    height: 24px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.toggle-slider::after {
    content: '';
    position: absolute;
    left: 3px;
    top: 3px;
    width: 16px;
    height: 16px;
    background: var(--text-tertiary);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

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

.toggle-input:checked + .toggle-slider::after {
    left: 23px;
    background: white;
}

.toggle-input:focus + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(196, 146, 42, 0.15);
}

.toggle-label {
    font-size: 0.9375rem;
    color: var(--text-primary);
}

/* ============================================
   NUMBER INPUT
   ============================================ */
input[type="number"].form-control {
    font-family: var(--font-mono);
}

input[type="number"].form-control::-webkit-inner-spin-button,
input[type="number"].form-control::-webkit-outer-spin-button {
    opacity: 1;
    height: 30px;
}

/* ============================================
   DATE INPUT
   ============================================ */
input[type="date"].form-control {
    font-family: var(--font-mono);
}

input[type="date"].form-control::-webkit-calendar-picker-indicator {
    filter: invert(0.6);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

input[type="date"].form-control::-webkit-calendar-picker-indicator:hover {
    filter: invert(0.8);
    background: var(--bg-tertiary);
}

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

.search-input .form-control {
    padding-left: 44px;
    padding-right: 44px;
}

.search-input .search-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input .clear-btn {
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    opacity: 0;
    transition: all var(--transition-fast);
}

.search-input .form-control:not(:placeholder-shown) ~ .clear-btn {
    opacity: 1;
}

.search-input .clear-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

.file-input-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-8) var(--space-4);
    background: var(--bg-primary);
    border: 2px dashed var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.file-input:hover .file-input-label {
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
}

.file-input-label i {
    font-size: 1.5rem;
    color: var(--text-muted);
}

/* ============================================
   PRIORITY SELECT (Custom)
   ============================================ */
.priority-select {
    display: flex;
    gap: var(--space-2);
}

.priority-option {
    flex: 1;
    position: relative;
}

.priority-option input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.priority-option label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
    font-weight: 500;
}

.priority-option label:hover {
    border-color: var(--border-light);
}

.priority-option.critical input:checked + label {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

.priority-option.urgent input:checked + label {
    background: var(--warning-bg);
    border-color: var(--warning);
    color: var(--warning);
}

.priority-option.routine input:checked + label {
    background: var(--info-bg);
    border-color: var(--info);
    color: var(--info);
}

/* ============================================
   FIELDSET
   ============================================ */
.fieldset {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-4);
}

.fieldset-legend {
    padding: 0 var(--space-2);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}