/* 공통 스타일 */

/* 기본 레이아웃 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.flex {
    display: flex;
}

.flex-1 {
    flex: 1;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

/* 텍스트 정렬 */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

/* 마진/패딩 */
.m-0 { margin: 0; }
.m-1 { margin: 4px; }
.m-2 { margin: 8px; }
.m-3 { margin: 12px; }
.m-4 { margin: 16px; }
.m-5 { margin: 20px; }

.p-0 { padding: 0; }
.p-1 { padding: 4px; }
.p-2 { padding: 8px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.p-5 { padding: 20px; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-5 { margin-top: 20px; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-5 { margin-bottom: 20px; }

/* 폰트 */
.font-bold {
    font-weight: bold;
}

.font-medium {
    font-weight: 500;
}

.font-normal {
    font-weight: normal;
}

.text-sm {
    font-size: 12px;
}

.text-base {
    font-size: 14px;
}

.text-lg {
    font-size: 16px;
}

.text-xl {
    font-size: 18px;
}

.text-2xl {
    font-size: 24px;
}

/* 색상 */
.text-gray-500 {
    color: #6b7280;
}

.text-gray-600 {
    color: #4b5563;
}

.text-gray-700 {
    color: #374151;
}

.text-blue-600 {
    color: #2563eb;
}

.text-red-600 {
    color: #dc2626;
}

.text-green-600 {
    color: #16a34a;
}

/* 배경색 */
.bg-white {
    background-color: #ffffff;
}

.bg-gray-50 {
    background-color: #f9fafb;
}

.bg-gray-100 {
    background-color: #f3f4f6;
}

.bg-gray-200 {
    background-color: #e5e7eb;
}

.bg-blue-50 {
    background-color: #eff6ff;
}

.bg-blue-500 {
    background-color: #3b82f6;
}

.bg-red-50 {
    background-color: #fef2f2;
}

.bg-green-50 {
    background-color: #f0fdf4;
}

/* 테두리 */
.border {
    border: 1px solid #e5e7eb;
}

.border-gray-200 {
    border-color: #e5e7eb;
}

.border-gray-300 {
    border-color: #d1d5db;
}

.rounded {
    border-radius: 4px;
}

.rounded-lg {
    border-radius: 8px;
}

.rounded-full {
    border-radius: 50%;
}

/* 그림자 */
.shadow {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.shadow-md {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* 위치 */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.sticky {
    position: sticky;
}

.top-0 {
    top: 0;
}

.bottom-0 {
    bottom: 0;
}

.left-0 {
    left: 0;
}

.right-0 {
    right: 0;
}

.inset-0 {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

/* 크기 */
.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.w-auto {
    width: auto;
}

.h-auto {
    height: auto;
}

/* 표시/숨김 */
.hidden {
    display: none;
}

.block {
    display: block;
}

.inline {
    display: inline;
}

.inline-block {
    display: inline-block;
}

/* 오버플로우 */
.overflow-hidden {
    overflow: hidden;
}

.overflow-auto {
    overflow: auto;
}

.overflow-x-auto {
    overflow-x: auto;
}

.overflow-y-auto {
    overflow-y: auto;
}

/* z-index */
.z-10 {
    z-index: 10;
}

.z-20 {
    z-index: 20;
}

.z-30 {
    z-index: 30;
}

.z-40 {
    z-index: 40;
}

.z-50 {
    z-index: 50;
}

/* 버튼 공통 스타일 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: #3b82f6;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: #2563eb;
}

.btn-secondary {
    background-color: #6b7280;
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #4b5563;
}

.btn-outline {
    background-color: transparent;
    border-color: #d1d5db;
    color: #374151;
}

.btn-outline:hover:not(:disabled) {
    background-color: #f9fafb;
    border-color: #9ca3af;
}

/* 폼 요소 */
.form-input {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.5;
    color: #374151;
    background-color: #ffffff;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-select {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.5;
    color: #374151;
    background-color: #ffffff;
    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 8px center;
    background-repeat: no-repeat;
    background-size: 16px 12px;
    padding-right: 40px;
}

.form-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* 알림 메시지 */
.alert {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 16px;
}

.alert-info {
    background-color: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

.alert-success {
    background-color: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.alert-warning {
    background-color: #fffbeb;
    border: 1px solid #fed7aa;
    color: #92400e;
}

.alert-error {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

/* 로딩 스피너 */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f4f6;
    border-radius: 50%;
    border-top-color: #3b82f6;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 반응형 */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .form-input,
    .form-select {
        padding: 6px 10px;
        font-size: 13px;
    }
}