{
  "meta": {
    "name": "Thumbooks Editorial",
    "version": "1.0.0",
    "concept": "Stories Unfold / Warm Editorial Minimalism",
    "source": "Four generated THUMBOOKS backgrounds: book → river → estuary → coast",
    "notes": "Images are stylistically continuous, not pixel-perfect panorama segments. All images are decorative; titles, navigation and book covers must remain HTML."
  },
  "colors": {
    "sampledRepresentative": {
      "paper_sample": "#F7EBDA",
      "mist_gray": "#D6DAD9",
      "water_blue": "#B1BEC4",
      "natural_olive": "#787358",
      "soft_ochre": "#C4AD7B"
    },
    "primitive": {
      "paper": "#F7EDDA",
      "surface": "#FFFAF0",
      "paper-deep": "#EFE2CB",
      "ink": "#27342E",
      "ink-muted": "#526258",
      "forest": "#285548",
      "forest-hover": "#1E4037",
      "sage": "#9EAA92",
      "sage-light": "#E8ECE2",
      "sea-mist": "#B1BEC4",
      "mist-light": "#E6ECE9",
      "ochre": "#C4AD7B",
      "ochre-ink": "#795C38",
      "border": "#D8D2C5",
      "border-strong": "#7D8D84",
      "focus": "#2D6A72",
      "white": "#FFFFFF",
      "positive": "#28614C",
      "danger": "#A2493E"
    },
    "semantic": {
      "bg-page": "{colors.primitive.paper}",
      "bg-surface": "{colors.primitive.surface}",
      "bg-subtle": "{colors.primitive.sage-light}",
      "text-primary": "{colors.primitive.ink}",
      "text-secondary": "{colors.primitive.ink-muted}",
      "text-link": "{colors.primitive.forest}",
      "action-primary": "{colors.primitive.forest}",
      "action-primary-hover": "{colors.primitive.forest-hover}",
      "action-on-primary": "{colors.primitive.white}",
      "decorative-sage": "{colors.primitive.sage}",
      "decorative-water": "{colors.primitive.sea-mist}",
      "decorative-warm": "{colors.primitive.ochre}",
      "text-warm": "{colors.primitive.ochre-ink}",
      "border-default": "{colors.primitive.border}",
      "border-control": "{colors.primitive.border-strong}",
      "focus-ring": "{colors.primitive.focus}"
    }
  },
  "typography": {
    "family": {
      "display": "\"Noto Serif KR\", \"Nanum Myeongjo\", serif",
      "body": "\"Pretendard\", \"Noto Sans KR\", system-ui, sans-serif",
      "english": "\"Cormorant Garamond\", Georgia, serif"
    },
    "size": {
      "caption": "13px",
      "small": "14px",
      "body": "17px",
      "bodyMobile": "16px",
      "lead": "20px",
      "h3": "24px",
      "h2": "36px",
      "h1": "48px",
      "display": "clamp(2.5rem, 4.7vw, 4.5rem)"
    },
    "weight": {
      "regular": 400,
      "medium": 500,
      "semibold": 600,
      "bold": 700
    },
    "lineHeight": {
      "display": 1.28,
      "heading": 1.35,
      "body": 1.75,
      "caption": 1.5
    },
    "letterSpacing": {
      "display": "-0.035em",
      "heading": "-0.025em",
      "body": "-0.012em"
    }
  },
  "spacing": {
    "1": "4px",
    "2": "8px",
    "3": "12px",
    "4": "16px",
    "5": "20px",
    "6": "24px",
    "8": "32px",
    "10": "40px",
    "12": "48px",
    "16": "64px",
    "20": "80px",
    "24": "96px",
    "32": "128px"
  },
  "radius": {
    "sm": "4px",
    "md": "6px",
    "lg": "10px",
    "pill": "999px"
  },
  "layout": {
    "container": "1200px",
    "reading": "720px",
    "gutter": "clamp(20px, 4.4vw, 72px)",
    "sectionGap": "clamp(88px, 9vw, 144px)",
    "heroMinHeight": "100svh",
    "headerHeight": "72px",
    "bookAspectRatio": "152 / 225",
    "cardGridGap": "24px"
  },
  "motion": {
    "fast": "160ms",
    "base": "260ms",
    "sceneFade": "850ms",
    "sceneScale": "1.025",
    "parallaxMax": "24px",
    "easing": "cubic-bezier(0.22, 1, 0.36, 1)",
    "reducedMotion": "Disable scale/parallax and crossfade; instant scene switching is acceptable."
  },
  "image": {
    "desktopRatio": "16 / 9",
    "nativeSize": [
      1672,
      941
    ],
    "fit": "cover",
    "imageTextScrim": "linear-gradient(90deg, rgba(247,237,218,0.88) 0%, rgba(247,237,218,0.55) 31%, rgba(247,237,218,0.04) 65%, rgba(247,237,218,0) 100%)",
    "mobileTextScrim": "linear-gradient(180deg, rgba(247,237,218,0.86) 0%, rgba(247,237,218,0.65) 40%, rgba(247,237,218,0.1) 100%)",
    "scenes": [
      {
        "id": "01-book",
        "label": "책이 펼쳐집니다",
        "section": "Hero",
        "src": "/assets/webp/01-book.webp",
        "desktopPosition": "center center",
        "mobilePosition": "69% center"
      },
      {
        "id": "02-river",
        "label": "이야기가 흐릅니다",
        "section": "Books",
        "src": "/assets/webp/02-river.webp",
        "desktopPosition": "center center",
        "mobilePosition": "57% center"
      },
      {
        "id": "03-estuary",
        "label": "세계와 만납니다",
        "section": "Our Stories",
        "src": "/assets/webp/03-estuary.webp",
        "desktopPosition": "center center",
        "mobilePosition": "62% center"
      },
      {
        "id": "04-coast",
        "label": "오래도록 남습니다",
        "section": "About / Closing",
        "src": "/assets/webp/04-coast.webp",
        "desktopPosition": "center center",
        "mobilePosition": "65% center"
      }
    ]
  },
  "component": {
    "button": {
      "minHeight": "46px",
      "paddingInline": "24px",
      "radius": "6px"
    },
    "card": {
      "radius": "6px",
      "shadow": "0 12px 36px rgba(39, 52, 46, 0.06)"
    },
    "bookCover": {
      "ratio": "152 / 225",
      "fit": "contain"
    },
    "icon": {
      "strokeWidth": "1.5px"
    },
    "header": {
      "backdropBlur": "12px"
    }
  }
}