/* BankFlow - 폼 컴포넌트 (v2 — Modern SaaS) */

.form-group {
    margin-bottom: var(--bf-space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--bf-space-2);
    font-size: var(--bf-text-xs);
    font-weight: 600;
    color: var(--bf-text-secondary);
    letter-spacing: 0.01em;
}

.form-label .required {
    color: var(--bf-danger);
    margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 9px var(--bf-space-3);
    font-size: var(--bf-text-sm);
    font-family: inherit;
    color: var(--bf-text);
    background-color: var(--bf-bg-input);
    border: 1.5px solid var(--bf-border-input);
    border-radius: var(--bf-radius);
    outline: none;
    transition: all var(--bf-transition);
    appearance: none;
    -webkit-appearance: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--bf-text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--bf-primary);
    box-shadow: 0 0 0 3px var(--bf-primary-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--bf-text-muted);
    font-weight: 400;
}

/* 에러 상태 */
.form-input.is-error {
    border-color: var(--bf-danger);
}
.form-input.is-error:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12);
}

/* 성공 상태 */
.form-input.is-valid {
    border-color: var(--bf-success);
}
.form-input.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.12);
}

/* 셀렉트 화살표 */
.form-select {
    padding-right: 2.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2394a3b8'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.6;
}

/* 힌트/에러 메시지 */
.form-hint {
    margin-top: var(--bf-space-1);
    font-size: var(--bf-text-xs);
    color: var(--bf-text-muted);
}

.form-error {
    margin-top: var(--bf-space-1);
    font-size: var(--bf-text-xs);
    color: var(--bf-danger);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 인라인 체크박스/라디오 */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--bf-space-2);
    cursor: pointer;
    font-size: var(--bf-text-sm);
    color: var(--bf-text-secondary);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--bf-primary);
    cursor: pointer;
    border-radius: 4px;
}

/* 토글 스위치 */
.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

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

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--bf-border-input);
    border-radius: var(--bf-radius-full);
    cursor: pointer;
    transition: background var(--bf-transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 3px;
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 50%;
    transition: transform var(--bf-transition);
    box-shadow: var(--bf-shadow-sm);
}

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

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

/* 입력 그룹 (아이콘 포함) */
.input-group {
    position: relative;
}

.input-group .form-input {
    padding-left: 2.5rem;
}

.input-group-icon {
    position: absolute;
    left: var(--bf-space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--bf-text-muted);
    pointer-events: none;
    transition: color var(--bf-transition);
}

.input-group .form-input:focus ~ .input-group-icon,
.input-group:focus-within .input-group-icon {
    color: var(--bf-primary);
}

.input-group-right .form-input {
    padding-right: 2.5rem;
    padding-left: var(--bf-space-3);
}

.input-group-right .input-group-icon {
    left: auto;
    right: var(--bf-space-3);
    pointer-events: all;
    cursor: pointer;
}

/* 파일 드래그앤드롭 */
.file-drop {
    border: 2px dashed var(--bf-border-input);
    border-radius: var(--bf-radius-lg);
    padding: var(--bf-space-8) var(--bf-space-4);
    text-align: center;
    cursor: pointer;
    transition: all var(--bf-transition);
    background: var(--bf-bg-subtle, var(--bf-bg));
}

.file-drop:hover,
.file-drop.dragover {
    border-color: var(--bf-primary);
    background: var(--bf-primary-glow);
}

.file-drop .file-drop-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--bf-space-3);
    color: var(--bf-text-muted);
    transition: color var(--bf-transition);
}

.file-drop:hover .file-drop-icon,
.file-drop.dragover .file-drop-icon {
    color: var(--bf-primary);
}

.file-drop .file-drop-text {
    font-size: var(--bf-text-sm);
    color: var(--bf-text-secondary);
}

.file-drop .file-drop-text strong {
    color: var(--bf-primary);
}

.file-drop .file-drop-hint {
    font-size: var(--bf-text-xs);
    color: var(--bf-text-muted);
    margin-top: var(--bf-space-1);
}

.file-drop input[type="file"] {
    display: none;
}