// Hair · Colour & Treatment · Going Darker — L3 data

const GOING_DARKER = {
  type: "Going Darker",
  parent: { title: "Colour & Treatment", href: "/en/hair/colour-treatment/" },
  grandparent: { title: "Hair", href: "/en/hair/" },
  totalCount: 158,
  hero: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=1800&q=80&auto=format&fit=crop",
  heroAlt: "Editorial close-up — rich, deep brunette hair",
  h1: "How to go darker.",
  deck: "Going darker is the easiest permanent colour change to execute — you're depositing pigment, not removing it — but it's also the most permanent. Getting out of a dark colour once you're in it is a significant undertaking. Going in right matters.",
  intro: "Deposit-only colour adds pigment to the hair without lifting the existing colour underneath. That's why going darker is easier on the hair than going lighter: no bleach, no oxidative damage to the cortex, no weeks of repair work afterward. What it isn't: reversible. If you decide in six months that you want to be blonde again, you'll need to strip the dark colour out before lifting — and that's a complex, damaging process. This isn't a reason not to go dark. It's a reason to go dark with clear expectations. Below is the full library: choosing the right depth, filler techniques for previously lightened hair, making dark hair shine, and the maintenance reality.",
  byline: "Edited by Nelly · Beauty & Style Director",
  meta: { count: 158, updated: "Updated 28 April 2026", reading: "Avg. 4 min per piece" },
};

const GD_SIBLINGS = [
  { id: "gloss",                 title: "Gloss",                  n: "01", href: "/en/hair/colour-treatment/gloss/" },
  { id: "balayage",              title: "Balayage",               n: "02", href: "/en/hair/colour-treatment/balayage/" },
  { id: "highlights",            title: "Highlights",             n: "03", href: "/en/hair/colour-treatment/highlights/" },
  { id: "root-touchup",         title: "Root touch-up",          n: "04", href: "/en/hair/colour-treatment/root-touchup/" },
  { id: "going-darker",         title: "Going darker",           n: "05", cur: true, href: "/en/hair/colour-treatment/going-darker/" },
  { id: "going-lighter",        title: "Going lighter",          n: "06", href: "/en/hair/colour-treatment/going-lighter/" },
  { id: "grey-coverage",        title: "Grey coverage",          n: "07", href: "/en/hair/colour-treatment/grey-coverage/" },
  { id: "vivids-care",          title: "Vivids care",            n: "08", href: "/en/hair/colour-treatment/vivids-care/" },
  { id: "bond-builder",         title: "Bond builder",           n: "09", href: "/en/hair/colour-treatment/bond-builder/" },
  { id: "sulphate-free-routine", title: "Sulphate-free routine", n: "10", href: "/en/hair/colour-treatment/sulphate-free-routine/" },
  { id: "post-salon-week",      title: "Post-salon week",        n: "11", href: "/en/hair/colour-treatment/post-salon-week/" },
  { id: "colour-fade",          title: "Colour fade",            n: "12", href: "/en/hair/colour-treatment/colour-fade/" },
];

const GD_QUICK_FACTS = {
  defn: {
    h: "What 'going darker' actually involves",
    body: "Any colour darker than your natural base is a deposit. You're adding pigment molecules to the hair shaft — they don't remove anything, and they're not reversible. Natural pigment, once broken down by bleaching, doesn't return. Artificial pigment, once deposited, requires colour stripping or a slow fade to remove. Going darker is the easiest colour change chemically, but the longest to undo if you change your mind.",
  },
  myths: [
    { m: "Going dark is safer than going light, so I don't need to worry about damage.",
      t: "Deposit-only colour is gentler than bleach, but permanent colour still uses hydrogen peroxide — it opens the cuticle to deposit pigment. Healthy hair handles it well. Already-damaged hair doesn't." },
    { m: "I can go from highlighted blonde to dark brown at home easily.",
      t: "Applying a dark colour directly over highly porous bleached hair can result in uneven, too-dark results, and the dark colour often fades with a green or muddy cast. A filler step is usually necessary." },
    { m: "Dark hair doesn't need special maintenance.",
      t: "Dark colour fades at the ends, leaving a visible depth difference between root and tip. It also shows dryness more starkly than lighter hair. Rich, shiny dark hair requires regular glossing and moisture." },
  ],
};

const GD_BEGINNER_PATH = {
  h: "Going dark for the first time?",
  deck: "Four pieces. About fifteen minutes. The things to know before you open any box.",
  steps: [
    { n: "01", t: "Choosing the right depth of dark", time: "4 min", note: "Level 3 vs 5 vs 7 — what the numbers mean against your skin tone." },
    { n: "02", t: "The filler technique: why lightened hair needs an extra step", time: "5 min", note: "How porous hair absorbs dark colour unevenly and how to prevent it." },
    { n: "03", t: "Going dark at home vs at the salon", time: "3 min", note: "When the box will work, and when it won't." },
    { n: "04", t: "Making dark hair shine: the routine", time: "4 min", note: "Weekly gloss, cold rinses, and the products that amplify depth." },
  ],
};

const GD_TRENDING = [
  { rank: "01", t: "How to go from highlighted to dark without the muddy cast", time: "5 min", auth: "Nelly", date: "Apr 26", img: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=1100&q=80&auto=format&fit=crop", reads: "17,220" },
  { rank: "02", t: "The filler step explained", time: "4 min", auth: "Iris",  date: "Apr 20", img: "https://images.unsplash.com/photo-1522337360788-8b13dee7a37e?w=1100&q=80&auto=format&fit=crop", reads: "11,340" },
  { rank: "03", t: "Choosing a dark shade that works with your skin tone", time: "4 min", auth: "Nelly", date: "Apr 13", img: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=1100&q=80&auto=format&fit=crop", reads: "9,808" },
  { rank: "04", t: "Dark colour on damaged hair — the risk and the repair", time: "5 min", auth: "Iris",  date: "Apr 06", img: "https://images.unsplash.com/photo-1562322140-8baeececf3df?w=1100&q=80&auto=format&fit=crop", reads: "8,215" },
  { rank: "05", t: "Making dark hair look expensive: a shine routine", time: "3 min", auth: "Nelly", date: "Mar 30", img: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=1100&q=80&auto=format&fit=crop", reads: "7,120" },
];

const GD_FORMAT_GUIDE = {
  h: "Going darker, by starting point",
  deck: "Same destination, very different routes depending on where your hair is now.",
  formats: [
    { name: "From natural base",    when: "Straightforward deposit — just choose the right level", avoid: "Going more than 3 levels darker without a strand test", note: "The cleanest scenario. Dark deposits evenly on virgin or lightly processed hair.", verdict: "★ Simplest" },
    { name: "From highlights",      when: "Rich brunette, chocolate, or dark auburn tones", avoid: "Applying dark without a filler step on heavily bleached areas", note: "Filler first. Then the target colour. Two steps, one appointment.", verdict: "Needs filler" },
    { name: "From balayage",        when: "A controlled, warm-to-cool brunette transition", avoid: "Expecting the transition to look the same as a natural base", note: "Lighter ends will absorb differently. A skilled colourist can use this to create natural-looking dimension.", verdict: "Consult first" },
    { name: "All-over dark",        when: "Maximum depth, uniform result, clean slate", avoid: "If you suspect you'll change your mind in six months", note: "The most dramatic change. The most permanent. Think it through.", verdict: "Long-term" },
    { name: "Dark with dimension",  when: "Depth without flatness — keeping some warmth or light", avoid: "If you want jet black — this requires a different formula", note: "Lowlights, not full dark. Keeps movement visible.", verdict: "Nuanced" },
  ],
};

const GD_HOWTOS = [
  { t: "How to go from highlighted to dark without the muddy cast", time: 5, tech: "Technique", auth: "Nelly", date: "Apr 26", img: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=900&q=80&auto=format&fit=crop", kick: "Technique", pick: true },
  { t: "The filler step explained", time: 4, tech: "Technique", auth: "Iris",  date: "Apr 20", img: "https://images.unsplash.com/photo-1522337360788-8b13dee7a37e?w=900&q=80&auto=format&fit=crop", kick: "Technique", pick: true },
  { t: "Choosing a dark shade that works with your skin tone", time: 4, tech: "Consultation", auth: "Nelly", date: "Apr 13", img: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=900&q=80&auto=format&fit=crop", kick: "Consultation", pick: true },
  { t: "Dark colour on damaged hair — the risk and the repair", time: 5, tech: "Damage", auth: "Iris",  date: "Apr 06", img: "https://images.unsplash.com/photo-1562322140-8baeececf3df?w=900&q=80&auto=format&fit=crop", kick: "Damage", pick: false },
  { t: "Making dark hair look expensive: a shine routine", time: 3, tech: "Maintenance", auth: "Nelly", date: "Mar 30", img: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=900&q=80&auto=format&fit=crop", kick: "Routine", pick: false },
  { t: "Dark colour that fades red — how to avoid it", time: 4, tech: "Troubleshoot", auth: "Iris",  date: "Mar 22", img: "https://images.unsplash.com/photo-1522337360788-8b13dee7a37e?w=900&q=80&auto=format&fit=crop", kick: "Troubleshoot", pick: false },
  { t: "Depth levels explained: level 1 to level 4", time: 3, tech: "Essay", auth: "Nelly", date: "Mar 14", img: "https://images.unsplash.com/photo-1605462863863-10d9e47e15ee?w=900&q=80&auto=format&fit=crop", kick: "Essay", pick: false },
  { t: "Going darker after a summer of sun — timing and preparation", time: 4, tech: "Routine", auth: "Iris",  date: "Mar 06", img: "https://images.unsplash.com/photo-1562322140-8baeececf3df?w=900&q=80&auto=format&fit=crop", kick: "Seasonal", pick: false },
];

const GD_TECH_FILTERS = ["All", "Technique", "Consultation", "Damage", "Maintenance", "Troubleshoot", "Essay", "Seasonal"];

const GD_CT_CROSSLINKS = [
  { id: "going-lighter",  title: "Going lighter",   deck: "The reverse — a different kind of commitment.",       count: 176, href: "/en/hair/colour-treatment/going-lighter/" },
  { id: "gloss",          title: "Gloss",            deck: "The step that makes dark hair actually shine.",       count: 189, href: "/en/hair/colour-treatment/gloss/" },
  { id: "colour-fade",   title: "Colour fade",      deck: "Dark colour fades differently — here's the plan.",    count: 167, href: "/en/hair/colour-treatment/colour-fade/" },
  { id: "bond-builder",  title: "Bond builder",     deck: "Even deposits need support if the hair was lightened.", count: 145, href: "/en/hair/colour-treatment/bond-builder/" },
];

Object.assign(window, {
  GOING_DARKER, GD_SIBLINGS, GD_QUICK_FACTS, GD_BEGINNER_PATH, GD_TRENDING, GD_FORMAT_GUIDE, GD_HOWTOS, GD_TECH_FILTERS, GD_CT_CROSSLINKS,
});