.ding-preview {
    --ding-gold: #d1b16c;
    --ding-ink: #181914;
    --ding-moss: #53694f;
    --ding-leaf: #819476;
    --ding-cream: #eee8dc;
    position: relative;
    width: 100%;
    margin-inline: 0;
    padding-block: clamp(88px, 10vw, 146px);
    overflow: hidden;
    color: var(--ding-cream);
    background:
        radial-gradient(circle at 12% 22%, rgb(78 101 71 / 18%), transparent 26%),
        radial-gradient(circle at 88% 68%, rgb(84 105 74 / 13%), transparent 29%),
        var(--ding-ink);
}

.ding-preview::before {
    position: absolute;
    inset: 0;
    opacity: .16;
    background-image: linear-gradient(90deg, transparent 49.9%, rgb(255 255 255 / 8%) 50%, transparent 50.1%);
    background-size: 13.2% 100%;
    content: "";
    pointer-events: none;
}

.ding-preview__shell { position: relative; z-index: 1; width: min(100% - 48px, 1380px); margin-inline: auto; }
.ding-preview__heading { display: grid; padding-bottom: clamp(42px, 5vw, 68px); border-bottom: 1px solid rgb(255 255 255 / 14%); grid-template-columns: minmax(0, 1fr) minmax(340px, .6fr); gap: clamp(42px, 8vw, 116px); align-items: end; }
.ding-preview__kicker, .ding-introduction__mark, .skill-garden__heading > div > p, .ding-tree__number, .ding-tree__axis, .ding-tree__hint, .ding-tree__growth span { font-family: Arial, Helvetica, sans-serif; font-weight: 600; text-transform: uppercase; }
.ding-preview__kicker { margin: 0 0 20px; color: var(--ding-gold); font-size: 10px; letter-spacing: .2em; }
.ding-preview h2 { margin: 0; color: #fff; font-size: clamp(50px, 5.7vw, 82px); font-weight: 400; letter-spacing: -.045em; line-height: .98; }
.ding-preview__quote { margin: 0; padding-left: 28px; border-left: 1px solid rgb(209 177 108 / 55%); }
.ding-preview__quote p { margin: 0; color: rgb(255 255 255 / 84%); font-family: var(--font-heading); font-size: clamp(19px, 1.8vw, 25px); line-height: 1.42; }
.ding-preview__quote p[lang] { margin-bottom: 8px; color: var(--ding-gold); font-size: clamp(22px, 2vw, 29px); }
.ding-preview__quote cite { display: block; margin-top: 12px; color: rgb(255 255 255 / 48%); font-size: 14px; }

.ding-introduction { display: grid; max-width: 1120px; margin: clamp(54px, 7vw, 92px) auto; grid-template-columns: 210px 1fr; gap: clamp(34px, 6vw, 78px); align-items: start; }
.ding-introduction__mark { position: sticky; top: calc(var(--site-header-height) + 24px); margin: 0; color: var(--ding-gold); font-family: var(--font-heading); font-size: clamp(54px, 7vw, 92px); font-weight: 400; letter-spacing: -.06em; line-height: .9; text-transform: none; }
.ding-introduction h3 { margin: 0 0 24px; color: #fff; font-size: clamp(36px, 4vw, 54px); font-weight: 400; }
.ding-introduction div > p { max-width: 780px; margin: 16px 0 0; color: rgb(255 255 255 / 65%); font-size: 18px; line-height: 1.6; }
.ding-introduction div > p:first-of-type { color: rgb(255 255 255 / 86%); font-size: 20px; }

.skill-garden { margin-top: clamp(72px, 9vw, 124px); }
.skill-garden__heading { display: grid; margin-bottom: clamp(72px, 9vw, 120px); grid-template-columns: minmax(0, 1fr) minmax(330px, .55fr); gap: 40px; align-items: end; }
.skill-garden__heading > div > p { margin: 0 0 16px; color: var(--ding-gold); font-size: 9px; letter-spacing: .18em; }
.skill-garden__heading h3 { max-width: 690px; margin: 0; color: #fff; font-size: clamp(54px, 6.5vw, 94px); font-weight: 400; letter-spacing: -.05em; line-height: .92; }
.skill-garden__heading > p { margin: 0; padding-left: 24px; border-left: 1px solid rgb(209 177 108 / 48%); color: rgb(255 255 255 / 64%); font-size: 18px; line-height: 1.55; }

.ding-grove + .ding-grove { margin-top: clamp(56px, 7vw, 92px); }

.skill-forest { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: clamp(30px, 4vw, 56px); }
.ding-tree { position: relative; min-height: 440px; border-bottom: 1px solid rgb(209 177 108 / 20%); overflow: hidden; background: radial-gradient(ellipse at 50% 92%, rgb(83 105 76 / 12%), transparent 52%); transition: background 450ms ease, transform 300ms ease; }
.ding-tree:hover { transform: translateY(-3px); }
.ding-tree.is-blooming { background: radial-gradient(ellipse at 50% 86%, rgb(83 105 76 / 27%), transparent 64%); }
.ding-tree__toggle { position: relative; z-index: 2; display: block; width: 100%; min-height: 440px; padding: 20px; border: 0; color: inherit; background: transparent; cursor: pointer; text-align: center; }
.ding-tree__toggle:focus-visible { outline: 1px solid var(--ding-gold); outline-offset: -5px; }
.ding-tree__number { position: absolute; top: 22px; left: 22px; color: var(--ding-gold); font-size: 10px; letter-spacing: .17em; }

.ding-tree__plant { position: absolute; top: 44px; left: 50%; display: block; width: min(100% - 38px, 480px); height: 300px; transform: translateX(-50%); }
.ding-tree__trunk { position: absolute; bottom: 16px; left: 50%; width: 9px; height: 158px; border-radius: 70% 36% 12% 12%; background: linear-gradient(90deg, #7b6444, #a98b60 48%, #745d3f); transform: translateX(-50%); transform-origin: bottom; }
.ding-tree:nth-child(2n) .ding-tree__trunk { transform: translateX(-50%) rotate(-1.2deg); }
.ding-tree:nth-child(3n) .ding-tree__trunk { transform: translateX(-50%) rotate(1deg); }
.ding-tree__trunk::after { position: absolute; top: 31px; left: -3px; width: 15px; height: 2px; opacity: .4; background: var(--ding-ink); box-shadow: 0 45px var(--ding-ink), 0 88px var(--ding-ink); content: ""; transform: rotate(-7deg); }

.ding-tree__branch { position: absolute; z-index: 1; bottom: 153px; left: 50%; width: 108px; height: 6px; border-radius: 55% 45% 45% 55%; background: var(--ding-moss); transform-origin: 0 50%; transition: transform 820ms cubic-bezier(.2,.78,.2,1); }
.ding-tree__branch::before, .ding-tree__branch::after { position: absolute; top: 1px; left: calc(100% - 4px); width: 58px; height: 4px; border-radius: 5px; background: var(--ding-moss); content: ""; transform-origin: 0 center; }
.ding-tree__branch::before { transform: rotate(34deg) scaleX(.2); transition: transform 680ms ease 170ms; }
.ding-tree__branch::after { transform: rotate(-34deg) scaleX(.2); transition: transform 680ms ease 280ms; }
.ding-tree__branch--left { transform: rotate(146deg) scaleX(.52); }
.ding-tree__branch--right { transform: rotate(-34deg) scaleX(.52); }
.ding-tree.is-blooming .ding-tree__branch--left { transform: rotate(146deg) scaleX(1); }
.ding-tree.is-blooming .ding-tree__branch--right { transform: rotate(-33deg) scaleX(1); }
.ding-tree.is-blooming .ding-tree__branch::before { transform: rotate(38deg) scaleX(1); }
.ding-tree.is-blooming .ding-tree__branch::after { transform: rotate(-38deg) scaleX(1); }

.ding-tree__crown { display: none; }

.ding-tree__axis { position: absolute; z-index: 3; bottom: 78px; left: 50%; width: min(78%, 360px); color: #b9c7b4; font-size: 8px; letter-spacing: .17em; transform: translateX(-50%); }
.ding-tree__axis::before { display: block; margin-bottom: 5px; color: var(--ding-gold); content: "Tronc commun"; }
.ding-tree__toggle > strong { position: absolute; z-index: 3; bottom: 42px; left: 50%; width: min(82%, 390px); color: #fff; font-family: var(--font-heading); font-size: clamp(20px, 2vw, 27px); font-weight: 400; line-height: 1.15; transform: translateX(-50%); }
.ding-tree__hint { position: absolute; right: 18px; bottom: 15px; display: flex; align-items: center; color: rgb(255 255 255 / 42%); font-size: 7px; gap: 7px; letter-spacing: .12em; }
.ding-tree__hint i { display: grid; width: 22px; height: 22px; border: 1px solid rgb(209 177 108 / 45%); border-radius: 50%; place-items: center; color: var(--ding-gold); font-family: var(--font-heading); font-size: 16px; font-style: normal; line-height: 1; transition: transform 420ms ease; }
.ding-tree.is-blooming .ding-tree__hint i { transform: rotate(45deg); }

.ding-tree__growth { position: absolute; z-index: 4; inset: 0; pointer-events: none; }
.ding-tree__growth p { position: absolute; top: 88px; width: min(32%, 190px); margin: 0; padding: 0; color: rgb(255 255 255 / 82%); background: transparent; font-family: var(--font-heading); font-size: clamp(13px, 1.15vw, 16px); line-height: 1.22; opacity: 0; transform: translateY(12px) scale(.96); transition: opacity 360ms ease, transform 520ms cubic-bezier(.2,.8,.2,1); }
.ding-tree__growth p:first-child { left: 17px; text-align: left; }
.ding-tree__growth p:last-child { right: 17px; text-align: right; }
.ding-tree__growth span { display: inline-block; margin-bottom: 8px; padding: 5px 10px; border: 1px solid rgb(209 177 108 / 55%); border-radius: 999px; color: var(--ding-gold); background: var(--ding-ink); font-size: 7px; letter-spacing: .14em; }
.ding-tree.is-blooming .ding-tree__growth p { opacity: 1; transform: translateY(0) scale(1); }
.ding-tree.is-blooming .ding-tree__growth p:first-child { transition-delay: 560ms; }
.ding-tree.is-blooming .ding-tree__growth p:last-child { transition-delay: 720ms; }

.ding-preview__footer { margin-top: clamp(72px, 9vw, 120px); padding-top: 30px; border-top: 1px solid rgb(255 255 255 / 14%); }
.ding-preview__footer p { margin: 0; color: rgb(255 255 255 / 52%); font-size: 16px; }

@media (max-width: 980px) {
    .skill-forest { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
    .ding-preview__heading, .skill-garden__heading { grid-template-columns: 1fr; }
    .ding-preview__quote { max-width: 620px; }
    .ding-introduction { grid-template-columns: 150px 1fr; }
    .ding-introduction__mark { position: static; }
}

@media (max-width: 560px) {
    .ding-preview { padding-block: 74px; }
    .ding-preview__shell { width: min(100% - 32px, 1380px); }
    .ding-preview h2 { font-size: 43px; }
    .ding-preview__quote { padding-left: 18px; }
    .ding-introduction { display: block; margin-block: 52px; }
    .ding-introduction__mark { margin-bottom: 25px; }
    .ding-introduction div > p, .ding-introduction div > p:first-of-type { font-size: 17px; }
    .skill-garden__heading h3 { font-size: 52px; }
    .skill-garden__heading > p { padding-left: 18px; font-size: 16px; }
    .ding-tree, .ding-tree__toggle { min-height: 520px; }
    .ding-tree__toggle { padding-inline: 8px; }
    .ding-tree__plant { top: 42px; width: 100%; }
    .ding-tree__branch { width: 112px; }
    .ding-tree__branch::before, .ding-tree__branch::after { width: 56px; }
    .ding-tree__axis { bottom: 91px; }
    .ding-tree__toggle > strong { bottom: 53px; font-size: 21px; }
    .ding-tree__growth p { width: 43%; padding: 6px; font-size: 13px; }
    .ding-tree__growth p:first-child { top: 176px; left: 3px; }
    .ding-tree__growth p:last-child { top: 92px; right: 3px; }
}

@media (prefers-reduced-motion: reduce) {
    .ding-tree, .ding-tree__branch, .ding-tree__branch::before, .ding-tree__branch::after, .ding-tree__crown, .ding-tree__hint i, .ding-tree__growth p { transition: none; }
}