/* 전체 페이지 스타일 */
body {
    background-color: #f5f6f8;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.container {
    max-width: 720px;
    margin: 100px auto 40px;
    background-color: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* 폼 레이아웃 */
.form-row {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
}

.image-upload {
    width: 140px;
    height: 140px;
    border: 2px dashed #ddd;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fafafa;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.image-upload:hover {
    border-color: #ff6f0f;
    background-color: #fff5f0;
}

.image-upload img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.image-upload:before {
    content: "사진 추가";
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.image-upload:hover:before {
    opacity: 1;
}

/* 폼 그룹 */
.form-group {
    flex: 1;
}

.form-group + .form-group {
    margin-top: 0;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    display: block;
}

/* 필수 항목 표시 */
.form-group label:after {
    content: "";
}

/* 입력 필드 공통 스타일 */
.form-group input,
.form-group textarea,
.form-group select,
.input-gray {
    width: 100%;
    padding: 14px;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    box-sizing: border-box;
    background-color: #fafbfc;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus,
.input-gray:focus {
    outline: none;
    border-color: #ff6f0f;
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(255, 111, 15, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #8b95a1;
}

/* 텍스트에리어 */
.textarea-group textarea {
    height: 140px;
    resize: vertical;
    min-height: 100px;
    max-height: 300px;
}

/* 가격 입력 필드 */
input[type="number"] {
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* 카테고리 선택 */
.category-select-wrapper {
    display: flex;
    gap: 12px;
    align-items: stretch;
    margin-top: 8px;
}

.category-select-wrapper select {
    flex: 1;
    margin-top: 0;
}

.category-add-btn {
    background: none;
    border: 1px solid #ff6f0f;
    color: #ff6f0f;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    height: fit-content;
}

.category-add-btn:hover {
    background-color: #ff6f0f;
    color: white;
}

.category-add-btn:focus {
    outline: 2px solid #ff6f0f;
    outline-offset: 2px;
}

/* 제출 버튼 */
.submit-btn {
    width: 100%;
    margin-top: 32px;
    padding: 16px;
    background: linear-gradient(135deg, #ff6f0f 0%, #ff8533 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(255, 111, 15, 0.3);
}

.submit-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, #e85a00 0%, #ff6f0f 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 111, 15, 0.4);
}

.submit-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.7;
}

.submit-btn:focus {
    outline: 2px solid #ff6f0f;
    outline-offset: 2px;
}

/* 에러 메시지 스타일 */
.error-message {
    color: #dc3545;
    font-size: 12px;
    margin-top: 6px;
    margin-bottom: 0;
    padding-left: 4px;
    display: block;
    min-height: 16px;
    line-height: 1.3;
    font-weight: 400;
}

.error-message:empty {
    display: none;
}

/* 성공 메시지 스타일 */
.success-message {
    color: #28a745;
    font-size: 12px;
    margin-top: 6px;
    margin-bottom: 0;
    padding-left: 4px;
    display: block;
    min-height: 16px;
    line-height: 1.3;
    font-weight: 400;
}

.success-message:empty {
    display: none;
}

/* 모달 스타일 */
.category-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: #fff;
    padding: 32px;
    border-radius: 16px;
    width: 90%;
    max-width: 420px;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content h2 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.modal-content .input-gray {
    margin: 12px 0;
}

.modal-content .error-message {
    margin-bottom: 12px;
}

.close-btn {
    position: absolute;
    top: 16px;
    right: 20px;
    cursor: pointer;
    font-size: 24px;
    color: #999;
    transition: color 0.2s ease;
    line-height: 1;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-btn:hover {
    color: #666;
    background-color: #f0f0f0;
}

.close-btn:focus {
    outline: 2px solid #ff6f0f;
    outline-offset: 2px;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .container {
        margin: 80px 16px 40px;
        padding: 24px;
    }

    .form-row {
        flex-direction: column;
        gap: 20px;
    }

    .image-upload {
        width: 120px;
        height: 120px;
        align-self: center;
    }

    .category-select-wrapper {
        flex-direction: column;
        gap: 8px;
    }

    .category-add-btn {
        align-self: flex-start;
        width: fit-content;
    }

    .modal-content {
        margin: 20px;
        padding: 24px;
    }

    .submit-btn {
        font-size: 15px;
        padding: 14px;
    }
}

@media (max-width: 480px) {
    .container {
        margin: 60px 12px 40px;
        padding: 20px;
    }

    .image-upload {
        width: 100px;
        height: 100px;
    }

    .form-group label {
        font-size: 13px;
    }

    .form-group input,
    .form-group textarea,
    .form-group select,
    .input-gray {
        padding: 12px;
        font-size: 13px;
    }

    .modal-content {
        padding: 20px;
    }

    .modal-content h2 {
        font-size: 16px;
    }
}

/* 접근성 개선 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 포커스 표시 개선 */
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid #ff6f0f;
    outline-offset: 2px;
}

/* 에러 상태 */
.form-group input.error,
.form-group textarea.error,
.form-group select.error {
    border-color: #dc3545;
    background-color: #fff5f5;
    box-shadow: 0 0 0 2px rgba(220, 53, 69, 0.1);
}

.form-group input.error:focus,
.form-group textarea.error:focus,
.form-group select.error:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

/* 성공 상태 */
.form-group input.success,
.form-group textarea.success,
.form-group select.success {
    border-color: #28a745;
    background-color: #f8fff9;
    box-shadow: 0 0 0 2px rgba(40, 167, 69, 0.1);
}

.form-group input.success:focus,
.form-group textarea.success:focus,
.form-group select.success:focus {
    border-color: #28a745;
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.2);
}

/* 로딩 상태 */
.submit-btn.loading {
    position: relative;
    color: transparent;
}

.submit-btn.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 서버 오류 메시지 */
.server-error {
    background-color: #fff5f5;
    border: 1px solid #f5c6cb;
    border-radius: 8px;
    padding: 12px 16px;
    margin: 20px 0;
    color: #721c24;
    font-size: 14px;
    text-align: center;
}

/* 성공 메시지 */
.server-success {
    background-color: #f8fff9;
    border: 1px solid #c3e6cb;
    border-radius: 8px;
    padding: 12px 16px;
    margin: 20px 0;
    color: #155724;
    font-size: 14px;
    text-align: center;
}

/* 툴팁 스타일 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    font-size: 12px;
    position: absolute;
    z-index: 1001;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* 다크 모드 대응 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #fff;
    }

    .container {
        background-color: #2d2d2d;
        color: #fff;
    }

    .form-group input,
    .form-group textarea,
    .form-group select,
    .input-gray {
        background-color: #3a3a3a;
        border-color: #555;
        color: #fff;
    }

    .form-group input::placeholder,
    .form-group textarea::placeholder {
        color: #aaa;
    }

    .modal-content {
        background-color: #2d2d2d;
        color: #fff;
    }

    .close-btn:hover {
        background-color: #555;
    }
}