/* 
 * pdf-style.css
 * PDF 변환 도구 전용 스타일
 */

/* 기본 설정 */
:root {
    --color-primary: #4E63D9;
    --color-primary-hover: #2E3C8C;
    --color-primary-dark: #1D2659;
    --color-bg: #f8f9fd;
    --color-white: #ffffff;
    --color-text: #1D2659;
    --color-text-light: #2E3C8C;
    --color-border: rgba(78, 99, 217, 0.2);
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

/* 헤더 */
.header { position: sticky; top: 0; z-index: 1000; background: var(--color-white); border-bottom: 1px solid var(--color-border); box-shadow: 0 1px 3px rgba(29, 38, 89, 0.1); }
.header-inner { max-width: 1280px; margin: 0 auto; padding: 1rem 2rem; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; }
.logo-mark { background: var(--color-primary); color: #fff; padding: 0.4rem 0.8rem; border-radius: 8px; font-size: 1.1rem; font-weight: 800; border: 2px solid var(--color-primary); box-shadow: 0 2px 8px rgba(78, 99, 217, 0.3); }
.logo-text { display: none; }
.nav { display: flex; gap: 1rem; flex: 1; justify-content: center; margin-left: 3rem; flex-wrap: wrap; align-items: center; }
.nav a { color: var(--color-text-light); font-weight: 500; transition: color 0.2s; white-space: nowrap; font-size: 0.85rem; text-decoration: none; }
.nav a:hover { color: var(--color-primary); }
.nav-toggle { display: none; }

/* 공통 컨테이너 */
.section-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 유틸리티 */
.hidden {
    display: none !important;
}

/* 히어로 섹션 */
.hero {
    background: var(--color-primary);
    padding: 100px 0;
    text-align: center;
    color: var(--color-white);
}

.hero-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.9;
}

/* 버튼 */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    border: none;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-block;
    text-decoration: none;
}

.btn.primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn.primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn.secondary {
    background: var(--color-bg);
    color: var(--color-primary);
    border: 2px solid var(--color-border);
}

.btn.secondary:hover:not(:disabled) {
    background: rgba(78, 99, 217, 0.1);
    border-color: var(--color-primary);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn.full {
    width: 100%;
}

.hero .btn.primary {
    background: var(--color-white);
    color: var(--color-primary);
}

.hero .btn.primary:hover {
    background: rgba(255, 255, 255, 0.9);
}

/* 도구 섹션 */
.tools-section {
    padding: 80px 0;
}

.tools-section h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 48px;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.tool-item {
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: 16px;
    padding: 40px 32px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tool-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(78, 99, 217, 0.15);
}

.tool-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.tool-item h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 12px;
}

.tool-item p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* 변환 섹션 */
.convert-section {
    padding: 80px 0;
    background: var(--color-white);
}

.convert-section h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 40px;
}

/* 업로드 박스 */
.upload-box {
    border: 2px dashed var(--color-primary);
    border-radius: 16px;
    background: rgba(78, 99, 217, 0.05);
    padding: 60px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 40px;
}

.upload-box:hover {
    background: rgba(78, 99, 217, 0.1);
    border-color: var(--color-primary-hover);
}

.upload-box.dragover {
    background: rgba(78, 99, 217, 0.15);
    border-color: var(--color-primary-hover);
}

.upload-box p {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 20px;
}

/* 파일 미리보기 리스트 */
.file-preview-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.file-preview-item {
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    position: relative;
}

.file-preview-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 8px;
}

.file-preview-item .file-name {
    font-size: 12px;
    color: var(--color-text-light);
    word-break: break-all;
}

.file-preview-item .remove-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 변환 액션 */
.convert-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 40px;
}

/* 결과 영역 */
.result-area {
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
}

.result-area h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 24px;
}

/* 소개 섹션 */
.info-section {
    padding: 80px 0;
    background: var(--color-white);
}

.info-section h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 48px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.info-card {
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.info-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.info-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 12px;
}

.info-card p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* 반응형 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .tools-section h2,
    .convert-section h2,
    .info-section h2 {
        font-size: 28px;
    }

    .tool-grid {
        grid-template-columns: 1fr;
    }

    .convert-actions {
        flex-direction: column;
    }

    .convert-actions .btn {
        width: 100%;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }
}