/* Design System Settings */
:root {
    --bg-gradient: radial-gradient(circle at 50% 50%, #0e101f 0%, #05060c 100%);
    --panel-bg: rgba(18, 20, 38, 0.65); /* 좀 더 깊이감 있고 묵직한 유리 투과율 */
    --panel-border: rgba(255, 255, 255, 0.08);
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --text-primary: #f3f4f6;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --glass-shadow: 0 16px 48px 0 rgba(0, 0, 0, 0.5), 0 0 20px rgba(139, 92, 246, 0.05); /* 은은한 네온 백그라운드 글로우 */
    --card-shadow: 0 8px 30px 0 rgba(0, 0, 0, 0.3);
    --font-ui: 'Outfit', 'Noto Sans KR', -apple-system, sans-serif;
}

/* Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg-gradient);
    color: var(--text-primary);
    font-family: var(--font-ui);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 32px 24px; /* 여백 확장 */
    overflow-x: hidden;
}

/* Main Container */
.app-container {
    width: 100%;
    max-width: 1400px;
    display: flex;
    flex-direction: column;
    gap: 32px; /* 상하 요소 간격 확대 */
}

/* Header Styling */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 32px; /* 패딩 상하좌우 대폭 확장 */
    background: rgba(26, 29, 49, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-img {
    height: 42px; /* 로고 이미지 높이 기존 34px -> 42px로 확대 */
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.1));
}

.logo-text h1 {
    font-size: 1.8rem; /* 타이틀 크기 기존 1.5rem -> 1.8rem으로 확대 */
    font-weight: 700;
    background: linear-gradient(to right, #ffffff, #d1d5db);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.made-by {
    font-size: 0.7rem;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    padding: 1px 8px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    box-shadow: 0 0 12px rgba(236, 72, 153, 0.5);
    display: inline-block;
    border: 1px solid rgba(255, 255, 255, 0.15);
    animation: pulse-glow 2s infinite ease-in-out;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 8px rgba(236, 72, 153, 0.4);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 16px rgba(236, 72, 153, 0.7);
        transform: scale(1.03);
    }
}

.theme-toggle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Glassmorphism Panel Base */
.glass {
    background: var(--panel-bg);
    backdrop-filter: blur(28px); /* 더 깊고 영롱한 유리 블러 효과 */
    -webkit-backdrop-filter: blur(28px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px; /* 둥글기를 24px로 확장하여 모던함 강조 */
    box-shadow: var(--glass-shadow);
    padding: 28px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main Grid Layout */
.app-main {
    display: grid;
    grid-template-columns: 380px 1fr; /* 너비를 약간 넓혀 조작 여유도 확보 */
    gap: 32px;
    align-items: start;
}

/* Control Panel (Left Side) */
.control-panel h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.divider {
    border: none;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 24px 0; /* 마진 확대 */
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 22px; /* 간격 대폭 확대 */
}

.control-group label {
    font-size: 0.85rem;
    font-weight: 600; /* 조금 더 굵게 표시하여 가독성 개선 */
    color: var(--text-secondary);
}

.control-group select,
.control-group input[type="text"] {
    background: rgba(10, 11, 20, 0.7); /* 좀 더 깊이감 있는 어두운 배경 */
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px; /* 더 부드러운 라운딩 */
    padding: 11px 14px;
    color: #ffffff;
    font-size: 0.9rem;
    outline: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.control-group select:focus,
.control-group input[type="text"]:focus {
    border-color: var(--accent-purple); /* 포커스 시 바이올렛 컬러 매칭 */
    box-shadow: 0 0 12px rgba(139, 92, 246, 0.25); /* 네온 글로우 */
    background: rgba(15, 17, 30, 0.9);
}

.control-group small {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Typography Accordion details */
.advanced-fonts {
    outline: none;
}

.advanced-fonts summary {
    font-size: 0.95rem;
    font-weight: 600;
    color: #ffffff;
    cursor: pointer;
    padding: 4px 0;
    user-select: none;
}

.typography-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 16px; /* 둥글기 12px -> 16px 확장 */
    padding: 16px; /* 패딩 확장 */
    margin-top: 16px;
    box-shadow: var(--card-shadow);
}

.typography-item h3 {
    font-size: 0.8rem;
    color: var(--accent-blue);
    margin-bottom: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.typography-item .row {
    display: flex;
    gap: 12px;
}

.typography-item .col {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.typography-item .col.short {
    flex: 0 0 80px;
}

.typography-item label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.typography-item input,
.typography-item select {
    background: rgba(15, 17, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    padding: 6px 10px;
    color: #ffffff;
    font-size: 0.85rem;
    outline: none;
}

.typography-item input:focus,
.typography-item select:focus {
    border-color: var(--accent-blue);
}

/* 비활성(일괄 지정 모드) 상태 표시 */
.typography-item select:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* 영역 간격(여백) 조절 */
.spacing-controls {
    margin-top: 4px;
}

.spacing-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.spacing-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 8px;
}

.spacing-row label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.spacing-row input {
    flex: 0 0 72px;
    background: rgba(15, 17, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    padding: 6px 10px;
    color: #ffffff;
    font-size: 0.85rem;
    outline: none;
    text-align: right;
}

.spacing-row input:focus {
    border-color: var(--accent-blue);
}

/* Right Side Content Area */
.content-area {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Dropzone (CSV Upload) */
.dropzone-panel {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    cursor: pointer;
    min-height: 190px;
    border: 2px dashed rgba(139, 92, 246, 0.25); /* 바이올렛 점선으로 변경 */
    background: rgba(18, 20, 38, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropzone-panel:hover {
    border-color: var(--accent-purple);
    background: rgba(139, 92, 246, 0.05);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.15);
}

.dropzone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.upload-icon {
    font-size: 2.8rem;
    filter: drop-shadow(0 2px 10px rgba(59, 130, 246, 0.3));
    margin-bottom: 4px;
}

.dropzone-content h3 {
    font-size: 1.15rem;
    font-weight: 600;
}

.dropzone-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.file-spec {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Preview Panel */
.preview-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.preview-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.preview-target {
    font-size: 0.8rem;
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    padding: 4px 10px;
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.25);
    max-width: 300px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-box {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ffffff; /* 바코드는 흰 바탕에서 가시성이 높으므로 미리보기 박스는 깨끗한 흰색 처리 */
    border-radius: 16px;
    padding: 30px;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
    min-height: 280px;
}

.svg-container svg,
.preview-sample svg {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 미리보기: 종류별 대표 샘플을 가로로 나열 (좁으면 줄바꿈) */
#svg-preview-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
    gap: 24px;
    width: 100%;
}

.preview-sample {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    max-width: 100%;
}

.sample-caption {
    font-size: 0.75rem;
    font-weight: 600;
    color: #475569;
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.1);
    padding: 3px 10px;
    border-radius: 10px;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 목록 테이블의 세트 도서 배지 */
.type-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 1px 7px;
    border-radius: 8px;
    margin-right: 6px;
    vertical-align: middle;
}

.type-badge.set {
    background: rgba(139, 92, 246, 0.18);
    color: #c4b5fd;
    border: 1px solid rgba(139, 92, 246, 0.35);
}

/* 대표 샘플 보기 복귀 버튼 */
.btn-reps {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 10px;
    padding: 6px 12px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-reps:hover {
    background: rgba(59, 130, 246, 0.25);
    color: #ffffff;
}

/* 내보내기 배경 토글 (투명 / 흰색) */
.preview-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.preview-controls .control-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.bg-segment {
    display: inline-flex;
    background: rgba(10, 11, 20, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 3px;
    gap: 3px;
}

.bg-opt {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 6px 14px;
    border-radius: 7px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.bg-opt:hover {
    color: #ffffff;
}

.bg-opt.active {
    background: var(--accent-purple);
    color: #ffffff;
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.3);
}

/* 투명 배경 미리보기: 체커보드 패턴으로 투명 영역 시각화 */
.preview-box.transparent-bg {
    background-color: #ffffff;
    background-image:
        linear-gradient(45deg, #dde3ec 25%, transparent 25%),
        linear-gradient(-45deg, #dde3ec 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #dde3ec 75%),
        linear-gradient(-45deg, transparent 75%, #dde3ec 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}

.preview-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.preview-info strong {
    color: #ffffff;
}

/* 안내 문단이 여러 줄로 늘어나 서로 붙지 않도록 */
.preview-info p + p {
    margin-top: 8px;
}

/* AI 내보내기 서체 불일치 경고 */
.ai-warning {
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid rgba(255, 176, 32, 0.45);
    background: rgba(255, 176, 32, 0.12);
    color: #ffd79a;
}

.ai-warning strong {
    color: #ffc266 !important;
}

/* List & Download Panel */
.list-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.list-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.list-header .actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px 16px;
}

.download-naming {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.download-naming select {
    background: rgba(15, 17, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 6px 10px;
    color: #ffffff;
    font-size: 0.8rem;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    color: #ffffff;
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: 0.85rem;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.version-badge {
    font-size: 0.75rem;
    background: rgba(139, 92, 246, 0.15);
    color: #c084fc;
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid rgba(139, 92, 246, 0.25);
    font-weight: 600;
}

/* Quick Guide Panel */
.guide-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 20px;
    background: rgba(26, 29, 49, 0.25);
}

.guide-panel h2 {
    font-size: 1.05rem;
    font-weight: 600;
    color: #ffffff;
}

.guide-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .guide-steps {
        grid-template-columns: 1fr;
    }
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.step-num {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    color: #ffffff;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.4);
}

.step p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.step p strong {
    color: #ffffff;
}

/* Data Table Grid */
.table-container {
    max-height: 350px;
    overflow-y: auto;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(15, 17, 30, 0.4);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.85rem;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table th {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
}

.data-table tbody tr {
    transition: background 0.2s ease;
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.data-table td {
    color: var(--text-primary);
}

.data-table tr.selected {
    background: rgba(59, 130, 246, 0.08);
}

/* Web App Custom Scrollbar */
.table-container::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.table-container::-webkit-scrollbar-track {
    background: transparent;
}

.table-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .app-main {
        grid-template-columns: 1fr;
    }
}


/* 바코드 크기 · 규격 검사 표시 */
.size-readout {
    margin: 10px 0 6px;
    padding: 9px 11px;
    border-radius: 8px;
    font-size: 0.78rem;
    line-height: 1.6;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
}

.size-readout strong { color: #ffffff; }
.size-readout .muted { opacity: 0.72; }

/* 판정 배지 */
.size-readout .tag {
    display: inline-block;
    padding: 1px 7px;
    margin: 0 2px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
}

.size-readout.ok {
    border-color: rgba(64, 214, 144, 0.4);
    background: rgba(64, 214, 144, 0.1);
    color: #b6f0d2;
}
.size-readout.ok .tag { background: rgba(64, 214, 144, 0.22); color: #7ef0b6; }

.size-readout.bad {
    border-color: rgba(255, 106, 106, 0.45);
    background: rgba(255, 106, 106, 0.12);
    color: #ffc2c2;
}
.size-readout.bad .tag { background: rgba(255, 106, 106, 0.25); color: #ff9b9b; }

.size-controls .spacing-row select {
    max-width: 190px;
}