@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root {
    --bg-page: #F9FAFB; --bg-surface: #FFFFFF; --bg-panel: #F3F4F6;
    --text-main: #111827; --text-muted: #4B5563; --border-color: #E5E7EB;
    --accent: #2563EB; --accent-hover: #1D4ED8;
}

body { font-family: 'Pretendard', sans-serif; background-color: var(--bg-page); color: var(--text-main); margin: 0; padding: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.hidden { display: none !important; }

/* Header & Footer */
.header-wrapper { width: 100%; background: var(--bg-surface); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 1050px; margin: 0 auto; padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; }
.header-logo { height: 36px; object-fit: contain; transform: scale(1.35); transform-origin: left center; }
.hub-btn { display: flex; align-items: center; gap: 6px; background: var(--bg-panel); border: 1px solid var(--border-color); padding: 6px 12px; border-radius: 20px; text-decoration: none; color: var(--text-main); font-size: 0.85rem; font-weight: 700; }
.footer { text-align: center; padding: 40px 20px; font-size: 0.85rem; color: var(--text-muted); }

/* Main Container */
.container { max-width: 900px; margin: 40px auto; padding: 0 20px; }
.view-active { display: block; }
.view-hidden { display: none; }
.hero { text-align: center; margin-bottom: 30px; }

/* Dropzone */
.upload-box { border: 2px dashed var(--text-muted); border-radius: 12px; padding: 60px 20px; text-align: center; background: var(--bg-panel); cursor: pointer; transition: 0.2s; margin-bottom: 40px;}
.upload-box:hover { border-color: var(--accent); background: rgba(37, 99, 235, 0.05); }
.upload-icon { font-size: 3.5rem; margin-bottom: 10px; }

/* Tabs & Workspace */
.tabs { display: flex; border-bottom: 2px solid var(--border-color); margin-bottom: 20px; overflow-x: auto; white-space: nowrap; }
.tab-btn { flex: 1; min-width: 90px; padding: 12px; background: none; border: none; cursor: pointer; font-weight: bold; color: var(--text-muted); border-bottom: 3px solid transparent; }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

.preview-area { display: flex; flex-direction: column; align-items: center; background: #111827; padding: 20px; border-radius: 12px; margin-bottom: 20px; }
#previewCanvas { max-width: 100%; max-height: 400px; background: #000; border-radius: 4px; box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.preview-info { color: #9CA3AF; margin-top: 15px; font-size: 0.85rem; }

.settings-area { padding: 25px; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 12px; margin-bottom: 20px; box-shadow: 0 4px 6px rgba(0,0,0,0.02); }
.tab-content { display: none; }
.tab-content.active { display: block; }
.option-row { display: flex; flex-wrap: wrap; gap: 15px; margin-bottom: 15px; align-items: center; }
.option-row label { display: flex; flex-direction: column; font-size: 0.9rem; font-weight: bold; flex: 1; min-width: 150px; }
.option-row input, .option-row select { padding: 10px; margin-top: 6px; border: 1px solid var(--border-color); border-radius: 6px; font-family: inherit; width: 100%; box-sizing: border-box;}
.radio-label { flex-direction: row !important; align-items: center; gap: 8px; font-weight: normal !important; }
.radio-label input { margin: 0; width: auto; }
.pos-wrap { display: flex; gap: 5px; margin-top: 6px; }

.action-row { margin-top: 25px; text-align: right; }
button { font-family: inherit; padding: 10px 16px; font-size: 0.95rem; font-weight: bold; border-radius: 8px; cursor: pointer; border: none; transition: 0.2s; }
.btn-primary { background: var(--bg-panel); color: var(--text-main); border: 1px solid var(--border-color); width: 100%; }
.btn-primary:hover { border-color: var(--accent); color: var(--accent); }
.btn-mega { width: 100%; color: white; padding: 16px; font-size: 1.1rem; }
.btn-mega:disabled { opacity: 0.5; cursor: not-allowed; }

/* Thumbnail Strip */
.strip-container { padding: 15px; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 12px; margin-bottom: 20px; }
.thumbnail-strip { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 5px; }
.thumb-item { width: 64px; height: 64px; object-fit: cover; border-radius: 6px; cursor: pointer; opacity: 0.5; border: 2px solid transparent; transition: 0.2s; flex-shrink: 0; }
.thumb-item.active { opacity: 1; border-color: var(--accent); transform: scale(1.05); }

/* Table */
table th, table td { padding: 10px; border-bottom: 1px solid var(--border-color); }
.btn-edit-result { background: none; border: 1px solid var(--border-color); padding: 4px 8px; border-radius: 4px; font-size: 0.8rem; cursor: pointer; }
.btn-edit-result:hover { background: var(--bg-panel); }

/* 모바일 대응 (피드백 반영) */
@media (max-width: 640px) {
    .container { margin: 20px auto; padding: 0 12px; }
    .option-row { flex-direction: column; align-items: stretch; gap: 10px; }
    .option-row label { min-width: 0; width: 100%; }
    .range-wrap { flex-direction: column; align-items: stretch; }
    .tabs { overflow-x: auto; }
    .tab-btn { min-width: 90px; white-space: nowrap; }
    #previewCanvas { max-height: 280px; }
}