/* Layout: a calm sky-coloured ground, one ink colour from the logo, a single "line" motif (straight rope) that recurs as rules, tension glyphs and the hero kite. */
:root {
  --ground: #F3F5F8;
  --paper: #FFFFFF;
  --ink: #1B2A41;
  --ink-2: #4A5A72;
  --rule: #D3DAE4;
  --sky: #2F5D8A;
  --sky-tint: #E2EAF3;
  --band: #1B2A41;
  --on-band: #F3F5F8;
  --on-band-2: #B9C5D6;

  --display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --wrap: 1160px;
  --radius: 10px;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0F1828; --paper: #16223A; --ink: #E7ECF3; --ink-2: #A9B6C9;
    --rule: #2B3A55; --sky: #92B9E3; --sky-tint: #1B2C46;
    --band: #0A111D; --on-band: #E7ECF3; --on-band-2: #A9B6C9;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #0F1828; --paper: #16223A; --ink: #E7ECF3; --ink-2: #A9B6C9;
  --rule: #2B3A55; --sky: #92B9E3; --sky-tint: #1B2C46;
  --band: #0A111D; --on-band: #E7ECF3; --on-band-2: #A9B6C9;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--body);
}
body::before {
  content: ""; position: fixed; inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--ground);
}
img, svg { max-width: 100%; }
[hidden] { display: none !important; }

a { color: var(--sky); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3, h4 { font-family: var(--display); font-weight: 500; letter-spacing: -0.02em; line-height: 1.12; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2.3rem, 5.2vw, 4.1rem); }
h2 { font-size: clamp(1.65rem, 3vw, 2.35rem); }
h3 { font-size: 1.25rem; letter-spacing: -0.01em; }
h4 { font-size: 1.05rem; letter-spacing: 0; }
p { margin: 0; }
strong { font-weight: 600; }

.eyebrow {
  font: 500 0.75rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.09em;
  color: var(--ink-2);
}
.lead { font-size: 1.22rem; line-height: 1.55; color: var(--ink); max-width: 58ch; }
.muted { color: var(--ink-2); }
.mono { font-family: var(--mono); }

.wrap {
  max-width: calc(var(--wrap) + 2 * 32px);
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
@media (min-width: 720px) {
  .wrap { padding-left: max(32px, env(safe-area-inset-left, 0px)); padding-right: max(32px, env(safe-area-inset-right, 0px)); }
}
.section { padding-block: clamp(56px, 8vw, 104px); }
.section + .section { border-top: 1px solid var(--rule); }
.stack { display: flex; flex-direction: column; gap: 18px; }
.stack-lg { display: flex; flex-direction: column; gap: 32px; }
.prose { max-width: 68ch; display: flex; flex-direction: column; gap: 16px; }
.prose ul, .prose ol { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 10px; }
.prose li::marker { color: var(--ink-2); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  background: var(--ground);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 500 1.12rem/1 var(--display); letter-spacing: -0.02em; white-space: nowrap; }
.brand svg { width: 22px; height: 31px; flex: none; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--ink); text-decoration: none; font-size: 0.95rem; padding: 10px 12px; border-radius: 8px;
}
.nav a:hover { background: var(--sky-tint); }
.nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--ink); border-radius: 0; }
.nav .btn { margin-left: 10px; }
.nav a.btn { border-radius: 999px; }
.menu-btn {
  display: none; margin-left: auto; align-items: center; gap: 8px;
  background: none; border: 1px solid var(--rule); color: var(--ink); border-radius: 8px;
  font: 500 0.95rem var(--body); padding: 10px 14px; min-height: 44px; cursor: pointer;
}
@media (max-width: 900px) {
  .menu-btn { display: inline-flex; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0; background: var(--ground);
    border-bottom: 1px solid var(--rule);
    padding: 8px max(16px, env(safe-area-inset-right, 0px)) 20px max(16px, env(safe-area-inset-left, 0px)); }
  .nav.open { display: flex; }
  .nav a { padding: 14px 4px; border-radius: 0; border-bottom: 1px solid var(--rule); }
  .nav a[aria-current="page"] { box-shadow: none; font-weight: 600; }
  .nav .btn { margin: 16px 0 0; justify-content: center; border-bottom: 0; }
  .nav a.btn { border-radius: 999px; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; min-height: 46px;
  padding: 12px 20px; border-radius: 999px; text-decoration: none;
  font: 500 0.98rem/1 var(--body); border: 1px solid var(--ink); cursor: pointer;
}
.btn-primary { background: var(--ink); color: var(--ground); }
.btn-primary:hover { background: var(--sky); border-color: var(--sky); color: var(--ground); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--sky-tint); }
.nav a.btn-primary { color: var(--ground); padding: 12px 18px; }
.nav a.btn-primary:hover { background: var(--sky); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.arrow { font-family: var(--mono); }

/* ---------- hero ---------- */
.hero { padding-block: clamp(40px, 7vw, 88px) 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: 32px; align-items: end; }
.hero-text { display: flex; flex-direction: column; gap: 24px; padding-bottom: clamp(48px, 7vw, 96px); }
.hero h1 span { display: block; color: var(--ink-2); }
.hero-art { align-self: stretch; display: flex; align-items: flex-end; justify-content: center; }
.hero-art svg { width: 100%; max-width: 380px; height: auto; display: block; }
.ground-line { border-bottom: 1px solid var(--ink); }
.kite-sway { transform-origin: 50px 500px; animation: sway 9s ease-in-out infinite; }
.wind line { stroke-dasharray: 2 10; animation: drift 6s linear infinite; }
@keyframes sway { 0%, 100% { transform: rotate(-1.6deg); } 50% { transform: rotate(1.4deg); } }
@keyframes drift { to { stroke-dashoffset: -96; } }
.art-label { font: 500 13px var(--mono); fill: var(--ink-2); letter-spacing: 0.06em; }
@media (prefers-reduced-motion: reduce) { .kite-sway, .wind line { animation: none; } }
@media (max-width: 760px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-text { padding-bottom: 8px; }
  .hero-art svg { max-width: 260px; }
}

/* ---------- generic grids & cards ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid-3 { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .grid-2, .grid-4 { grid-template-columns: 1fr; } }

.card { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.card p { color: var(--ink-2); }
a.card { text-decoration: none; color: var(--ink); transition: border-color .15s; }
a.card:hover { border-color: var(--ink); }
a.card .more { margin-top: auto; padding-top: 8px; color: var(--sky); font-weight: 500; }

.ruled { display: flex; flex-direction: column; gap: 10px; padding-top: 18px; border-top: 2px solid var(--ink); min-width: 0; }
.ruled p { color: var(--ink-2); }

.section-head { display: flex; flex-direction: column; gap: 14px; max-width: 68ch; margin-bottom: 40px; }

/* split human / AI */
.split { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); border-radius: var(--radius); overflow: hidden; }
.split > div { padding: 28px; display: flex; flex-direction: column; gap: 10px; }
.split > div + div { border-left: 1px solid var(--ink); background: var(--sky-tint); }
.split .big { font: 500 clamp(1.4rem, 2.6vw, 1.9rem)/1.2 var(--display); letter-spacing: -0.02em; }
@media (max-width: 560px) { .split { grid-template-columns: 1fr; } .split > div + div { border-left: 0; border-top: 1px solid var(--ink); } }

/* dark band */
.band { background: var(--band); color: var(--on-band); }
.band .eyebrow, .band .muted, .band p { color: var(--on-band-2); }
.band h2, .band h3 { color: var(--on-band); }
.band a { color: var(--on-band); }
.band .btn-primary { background: var(--on-band); color: var(--band); border-color: var(--on-band); }
.band .btn-primary:hover { background: var(--sky-tint); color: var(--ink); }
.band .btn-ghost { color: var(--on-band); border-color: var(--on-band-2); }
.band .btn-ghost:hover { background: rgba(255,255,255,0.08); }
.band .section + .section { border-color: rgba(255,255,255,0.12); }

/* ---------- method layout ---------- */
.page-head { padding-block: clamp(40px, 6vw, 72px) clamp(28px, 4vw, 44px); border-bottom: 1px solid var(--rule); }
.page-head .stack { max-width: 72ch; }
.method-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; padding-block: 48px 96px; }
.chapters { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 92px); align-self: start; display: flex; flex-direction: column; gap: 12px; }
.chapters ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; border-left: 1px solid var(--rule); }
.chapters a { display: flex; gap: 10px; padding: 8px 0 8px 16px; margin-left: -1px; border-left: 2px solid transparent; color: var(--ink-2); text-decoration: none; font-size: 0.95rem; line-height: 1.35; }
.chapters a:hover { color: var(--ink); }
.chapters a[aria-current="page"] { border-left-color: var(--ink); color: var(--ink); font-weight: 600; }
.chapters .n { font: 500 0.78rem/1.6 var(--mono); color: var(--ink-2); }
.article { min-width: 0; display: flex; flex-direction: column; gap: 64px; }
.article > section { display: flex; flex-direction: column; gap: 20px; scroll-margin-top: 96px; }
.article > section > h2 { padding-top: 4px; }
@media (max-width: 900px) {
  .method-layout { grid-template-columns: 1fr; gap: 32px; padding-top: 28px; }
  .chapters { position: static; }
  .chapters ol { flex-direction: row; flex-wrap: wrap; border-left: 0; gap: 8px; }
  .chapters a { border: 1px solid var(--rule); border-radius: 999px; padding: 8px 14px; margin: 0; }
  .chapters a[aria-current="page"] { border-color: var(--ink); }
}
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; border-top: 1px solid var(--rule); padding-top: 28px; }
.pager a { display: flex; flex-direction: column; gap: 4px; text-decoration: none; color: var(--ink); padding: 16px 0; }
.pager a .eyebrow { font-size: 0.7rem; }
.pager a strong { font: 500 1.15rem var(--display); }
.pager a:hover strong { color: var(--sky); }
.pager .next { text-align: right; grid-column: 2; }

/* callout */
.callout { border-left: 3px solid var(--ink); padding: 4px 0 4px 20px; display: flex; flex-direction: column; gap: 8px; max-width: 68ch; }
.callout p { color: var(--ink); }
.quote { font: 500 clamp(1.4rem, 2.6vw, 1.9rem)/1.3 var(--display); letter-spacing: -0.02em; max-width: 30ch; }

/* tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--paper); }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; line-height: 1.5; }
th, td { text-align: left; vertical-align: top; padding: 14px 16px; border-bottom: 1px solid var(--rule); }
thead th { font: 500 0.72rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-2); background: var(--ground); }
tbody tr:last-child > * { border-bottom: 0; }
tbody th { font-weight: 600; white-space: nowrap; }
td { color: var(--ink-2); }
table.wide { min-width: 720px; }

/* principles */
.principles { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.principles li { display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); gap: 24px; padding: 18px 0; border-top: 1px solid var(--rule); }
.principles li:last-child { border-bottom: 1px solid var(--rule); }
.principles strong { font: 500 1.08rem/1.35 var(--display); }
.principles span { color: var(--ink-2); }
@media (max-width: 640px) { .principles li { grid-template-columns: 1fr; gap: 6px; } }

/* parts of the kite */
.part-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.tag { font: 500 0.72rem/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; padding: 6px 8px; border: 1px solid var(--rule); border-radius: 6px; color: var(--ink-2); white-space: nowrap; }
.kv { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 14px; margin: 0; font-size: 0.95rem; }
.kv dt { font: 500 0.72rem/1.9 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-2); }
.kv dd { margin: 0; color: var(--ink); }

/* kite brief document */
.brief { background: var(--paper); border: 1px solid var(--ink); border-radius: var(--radius); max-width: 640px; overflow: hidden; }
.brief-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 20px; border-bottom: 1px solid var(--ink); }
.brief dl { margin: 0; }
.brief .row { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: 16px; padding: 14px 20px; border-bottom: 1px solid var(--rule); }
.brief .row:last-child { border-bottom: 0; }
.brief dt { font: 500 0.75rem/1.8 var(--mono); text-transform: uppercase; letter-spacing: 0.07em; color: var(--ink-2); }
.brief dd { margin: 0; font-size: 0.98rem; }
@media (max-width: 520px) { .brief .row { grid-template-columns: 1fr; gap: 2px; } }

/* tension glyph: thicker line = tighter human control */
.tension { display: inline-block; width: 44px; height: 14px; flex: none; }
.tension line { stroke: currentColor; stroke-linecap: round; }

/* flight zone matrix */
.zones { display: grid; grid-template-columns: 2.2rem minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: auto auto auto;
  grid-template-areas: "y paired held" "y free guided" ". x x"; gap: 16px; }
.zone { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.zone.held { border: 2px solid var(--ink); background: var(--sky-tint); }
.zone h3 { display: flex; align-items: center; gap: 12px; }
.zone .rule { font-weight: 500; }
.zone .ex { color: var(--ink-2); font-size: 0.95rem; }
.zone .coords { font: 500 0.7rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.07em; color: var(--ink-2); }
.z-free { grid-area: free; } .z-guided { grid-area: guided; } .z-paired { grid-area: paired; } .z-held { grid-area: held; }
.axis-y { grid-area: y; display: flex; align-items: center; justify-content: center; border-right: 1px solid var(--ink); position: relative; }
.axis-y span { writing-mode: vertical-rl; transform: rotate(180deg); font: 500 0.75rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink); }
.axis-y::before { content: ""; position: absolute; top: -2px; right: -5px; border: 5px solid transparent; border-bottom: 8px solid var(--ink); border-top: 0; }
.axis-x { grid-area: x; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--ink); padding-top: 10px; position: relative; font: 500 0.75rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; }
.axis-x::after { content: ""; position: absolute; top: -6px; right: -2px; border: 5px solid transparent; border-left: 8px solid var(--ink); border-right: 0; }
.axis-x .low, .axis-x .high { color: var(--ink-2); }
@media (max-width: 680px) {
  .zones { grid-template-columns: 1fr; grid-template-areas: "free" "guided" "paired" "held"; }
  .axis-x, .axis-y { display: none; }
}

/* kite loop */
.loop { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; position: relative; }
.loop li { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius); padding: 20px; display: flex; flex-direction: column; gap: 6px; position: relative; min-width: 0; }
.loop li.human { border: 2px solid var(--ink); background: var(--sky-tint); }
.loop li:not(:last-child)::after { content: "→"; position: absolute; right: -22px; top: 50%; transform: translateY(-50%); font: 500 1rem var(--mono); color: var(--ink-2); }
.loop .who { font: 500 0.72rem/1.5 var(--mono); text-transform: uppercase; letter-spacing: 0.07em; color: var(--ink-2); }
.loop h3 { font-size: 1.3rem; }
.loop p { color: var(--ink-2); font-size: 0.95rem; }
.loop-return { margin-top: 14px; border: 1px solid var(--ink-2); border-top: 0; border-radius: 0 0 var(--radius) var(--radius); height: 22px; margin-inline: 12% 12%; position: relative; }
.loop-return::before { content: ""; position: absolute; left: -6px; top: -8px; border: 5px solid transparent; border-bottom: 8px solid var(--ink-2); border-top: 0; }
.loop-caption { text-align: center; color: var(--ink-2); font-size: 0.95rem; margin-top: 12px; }
@media (max-width: 860px) {
  .loop { grid-template-columns: 1fr; gap: 24px; }
  .loop li:not(:last-child)::after { content: "↓"; right: auto; left: 24px; top: auto; bottom: -24px; transform: none; }
  .loop-return { display: none; }
  .loop-caption { text-align: left; }
}
.legend { display: flex; align-items: center; gap: 10px; color: var(--ink-2); font-size: 0.9rem; }
.legend i { width: 18px; height: 14px; border: 2px solid var(--ink); background: var(--sky-tint); border-radius: 4px; display: inline-block; }

/* phases */
.phases { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--paper); }
.phases li { padding: 24px 22px; display: flex; flex-direction: column; gap: 8px; position: relative; min-width: 0; }
.phases li + li { border-left: 1px solid var(--rule); }
.phases li.focus { background: var(--sky-tint); }
.phases .dur { font: 500 0.75rem/1.4 var(--mono); color: var(--ink-2); text-transform: uppercase; letter-spacing: 0.06em; }
.phases h3 { font-size: 1.2rem; }
.phases p { color: var(--ink-2); font-size: 0.95rem; }
.gate { margin-top: auto; padding-top: 14px; display: flex; gap: 10px; align-items: flex-start; font-size: 0.88rem; color: var(--ink-2); border-top: 1px dashed var(--rule); }
.gate b { font: 600 0.72rem/1.6 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink); white-space: nowrap; }
.gate::before { content: ""; width: 10px; height: 10px; background: var(--ink); transform: rotate(45deg); margin-top: 5px; flex: none; }
@media (max-width: 900px) {
  .phases { grid-template-columns: 1fr 1fr; }
  .phases li:nth-child(3) { border-left: 0; }
  .phases li:nth-child(n+3) { border-top: 1px solid var(--rule); }
}
@media (max-width: 560px) {
  .phases { grid-template-columns: 1fr; }
  .phases li + li { border-left: 0; border-top: 1px solid var(--rule); }
}

/* steps (real sequences only) */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: flex; flex-direction: column; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: 16px; padding: 20px 0; border-top: 1px solid var(--rule); }
.steps li:last-child { border-bottom: 1px solid var(--rule); }
.steps li::before { content: counter(s); font: 500 1.6rem/1 var(--display); color: var(--ink); width: 2.4rem; height: 2.4rem; border: 1px solid var(--ink); border-radius: 50%; display: grid; place-items: center; font-size: 1rem; }
.steps h3 { margin-bottom: 6px; }
.steps p { color: var(--ink-2); }

/* defs list (anchors, metrics, glossary) */
.deflist { margin: 0; display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); border-top: 1px solid var(--rule); }
.deflist dt, .deflist dd { padding: 16px 0; border-bottom: 1px solid var(--rule); margin: 0; }
.deflist dt { font: 500 1.05rem/1.4 var(--display); padding-right: 24px; }
.deflist dd { color: var(--ink-2); }
@media (max-width: 640px) { .deflist { grid-template-columns: 1fr; } .deflist dt { border-bottom: 0; padding-bottom: 2px; } .deflist dd { padding-top: 0; } }

/* metrics */
.metric { display: flex; flex-direction: column; gap: 10px; }
.metric .warn { display: flex; gap: 10px; font-size: 0.93rem; color: var(--ink); padding-top: 10px; border-top: 1px dashed var(--rule); margin-top: auto; }
.metric .warn b { font: 600 0.7rem/1.7 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; white-space: nowrap; color: var(--ink-2); }

/* maturity ladder */
.ladder { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; align-items: end; }
.ladder li { display: flex; flex-direction: column; gap: 8px; padding: 18px 18px 18px 0; border-bottom: 2px solid var(--ink); min-width: 0; }
.ladder li:nth-child(2) { padding-bottom: 46px; } .ladder li:nth-child(3) { padding-bottom: 74px; } .ladder li:nth-child(4) { padding-bottom: 102px; }
.ladder li + li { padding-left: 18px; border-left: 1px solid var(--rule); }
.ladder p { color: var(--ink-2); font-size: 0.95rem; }
@media (max-width: 760px) {
  .ladder { grid-template-columns: 1fr; }
  .ladder li, .ladder li:nth-child(n) { padding: 14px 0; border-left: 0; border-bottom: 1px solid var(--rule); }
}

/* services */
.service { display: flex; flex-direction: column; gap: 12px; }
.service .when { font: 500 0.75rem var(--mono); color: var(--ink-2); text-transform: uppercase; letter-spacing: 0.06em; }
.contact-box { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.email { font: 500 clamp(1.3rem, 3vw, 1.8rem)/1.2 var(--display); letter-spacing: -0.01em; user-select: all; word-break: break-all; }
.copy-status { font-size: 0.9rem; min-height: 1.4em; }

/* footer */
.site-footer { background: var(--band); color: var(--on-band); padding-block: 56px 40px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.site-footer h2 { font: 500 0.75rem var(--mono); text-transform: uppercase; letter-spacing: 0.09em; color: var(--on-band-2); margin-bottom: 12px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.site-footer a { color: var(--on-band); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer p { color: var(--on-band-2); font-size: 0.95rem; }
.site-footer .brand { color: var(--on-band); margin-bottom: 14px; }
.foot-bottom { margin-top: 48px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.14); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 0.88rem; color: var(--on-band-2); }
@media (max-width: 820px) { .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .foot-grid { grid-template-columns: 1fr; } }