*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Ink and paper */
  --primary:      #16213a;   /* typewriter ink */
  --primary-mid:  #2d3a58;
  --primary-dark: #0f1729;
  --accent:       #2443b8;   /* ballpoint blue */
  --accent-mid:   #1a3496;

  /* Carbon copy tints (material, not accents) */
  --copy-white:  #fbfcfd;
  --copy-canary: #f6e8a6;
  --copy-pink:   #f3d0d6;
  --copy-green:  #cfe7d7;

  /* Neutrals */
  --bg:         #e8ecf0;   /* desk grey */
  --surface:    #fbfcfd;
  --border:     #c3cad4;
  --rule:       #d5dbe3;
  --text:       #16213a;
  --text-soft:  #3f4a63;
  --text-muted: #555f74;
  --footer:     #111a2c;

  --font-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-form:    'Martian Mono', ui-monospace, monospace;

  --section-pad: clamp(64px, 9vw, 128px);
  --container:   1200px;
  --radius:      2px;
  --radius-lg:   2px;
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sheet: 0 1px 1px rgb(22 33 58 / .06), 0 10px 28px -8px rgb(22 33 58 / .18);
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-display); color: var(--text); text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 4.8vw, 4.1rem); line-height: 1.03; font-weight: 700; font-stretch: 108%; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.9rem, 3.8vw, 3.1rem); line-height: 1.08; font-weight: 700; font-stretch: 108%; letter-spacing: -0.025em; }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.35rem); line-height: 1.25; font-weight: 650; letter-spacing: -0.01em; }
p  { font-size: clamp(0.98rem, 1.2vw, 1.075rem); line-height: 1.7; color: var(--text-soft); text-wrap: pretty; }

a { color: inherit; }
img { max-width: 100%; display: block; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: var(--primary); color: #fff; padding: .6rem 1rem; text-decoration: none; }
.skip:focus { top: 1rem; }

.wrap { max-width: var(--container); margin-inline: auto; padding-inline: clamp(1rem, 5vw, 2rem); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-family: var(--font-body); font-weight: 600; font-size: 1rem; white-space: nowrap;
  padding: .95rem 1.5rem; border-radius: var(--radius); text-decoration: none; cursor: pointer;
  border: 1.5px solid transparent;
  transition: background .2s, color .2s, border-color .2s, transform .2s var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn i { font-size: 1.1em; transition: transform .25s var(--ease-out); }
.btn:hover i { transform: translateX(3px); }
.btn--ink { background: var(--accent); color: #fff; }
.btn--ink:hover { background: var(--accent-mid); }
.btn--line { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn--line:hover { background: var(--primary); color: #fff; }
.btn--sm { padding: .6rem 1rem; font-size: .92rem; }
.btn--block { width: 100%; }

/* ---------- Navigation ---------- */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, box-shadow .3s; }
.nav.is-solid { background: rgb(251 252 253 / .96); box-shadow: 0 1px 0 var(--rule), 0 8px 24px -16px rgb(22 33 58 / .25); }
.nav__inner {
  max-width: var(--container); margin-inline: auto; padding-inline: clamp(1rem, 5vw, 2rem);
  height: 68px; display: flex; align-items: center; justify-content: space-between;
}
.nav-sentinel { position: absolute; top: 0; height: 40px; width: 1px; }

.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; }
.brand__mark {
  display: grid; place-items: center; width: 2.25rem; height: 2.25rem;
  background: var(--primary); color: #fff; border-radius: var(--radius);
  font-family: var(--font-display); font-weight: 800; font-stretch: 120%; font-size: .95rem; letter-spacing: -0.02em;
}
.brand__word { font-family: var(--font-display); font-weight: 700; font-stretch: 118%; font-size: 1.2rem; letter-spacing: -0.01em; }
.brand--light .brand__mark { background: #fbfcfd; color: var(--footer); }
.brand--light .brand__word { color: #fbfcfd; }

.nav__toggle { display: grid; place-items: center; width: 44px; height: 44px; background: none; border: 0; cursor: pointer; }
.nav__toggle-bars, .nav__toggle-bars::before, .nav__toggle-bars::after {
  display: block; width: 22px; height: 2px; background: var(--primary); position: relative;
  transition: transform .3s var(--ease-out), background .2s;
}
.nav__toggle-bars::before, .nav__toggle-bars::after { content: ""; position: absolute; left: 0; }
.nav__toggle-bars::before { top: -7px; }
.nav__toggle-bars::after { top: 7px; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars { background: transparent; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars::before { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars::after { transform: translateY(-7px) rotate(-45deg); }

.nav__menu {
  position: fixed; inset: 68px 0 auto; background: var(--surface);
  display: flex; flex-direction: column; gap: .25rem; padding: 1rem clamp(1rem, 5vw, 2rem) 1.5rem;
  box-shadow: 0 16px 32px -16px rgb(22 33 58 / .3); border-top: 1px solid var(--rule);
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: opacity .25s, transform .25s var(--ease-out), visibility .25s;
}
.nav__menu.is-open { opacity: 1; transform: none; visibility: visible; }
.nav.menu-open { background: var(--surface); }
.nav__menu a:not(.btn) { text-decoration: none; font-weight: 550; padding: .8rem 0; border-bottom: 1px solid var(--rule); }
.nav__menu .btn { margin-top: .9rem; }

@media (min-width: 1024px) {
  .nav__toggle { display: none; }
  .nav__menu {
    position: static; flex-direction: row; align-items: center; gap: 2rem; padding: 0;
    background: none; box-shadow: none; border: 0; transform: none; opacity: 1; visibility: visible;
  }
  .nav__menu a:not(.btn) { border: 0; padding: .25rem 0; font-size: .95rem; position: relative; }
  .nav__menu a:not(.btn)::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1.5px; background: var(--accent);
    transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease-out);
  }
  .nav__menu a:not(.btn):hover::after { transform: scaleX(1); }
  .nav__menu .btn { margin-top: 0; }
}

/* ---------- Sheets (the core material) ---------- */
.sheet {
  position: relative; background: var(--copy-white); border-radius: var(--radius);
  box-shadow: var(--shadow-sheet); padding: 1.5rem 1.25rem 1.25rem;
}
/* perforated top edge */
.sheet::before {
  content: ""; position: absolute; left: 0; right: 0; top: 10px; height: 4px;
  background: radial-gradient(circle, rgb(22 33 58 / .22) 1.2px, transparent 1.6px) 0 0 / 10px 4px repeat-x;
}
.sheet--white  { background: var(--copy-white); }
.sheet--canary { background: var(--copy-canary); }
.sheet--pink   { background: var(--copy-pink); }
.sheet--green  { background: var(--copy-green); }

.sheet__head {
  display: grid; grid-template-columns: auto 1fr auto; align-items: baseline; gap: .75rem;
  padding: .6rem 0 .8rem; border-bottom: 2px solid var(--primary); margin-bottom: 1rem;
}
.sheet__brand { font-family: var(--font-display); font-weight: 800; font-stretch: 120%; font-size: .95rem; }
.sheet__title { font-family: var(--font-form); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-soft); }
.sheet__copy { font-family: var(--font-form); font-size: .66rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); border: 1px solid currentColor; padding: .1rem .4rem; }
.sheet__foot { margin-top: 1rem; font-family: var(--font-form); font-size: .64rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); }

.fields { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--border); border-left: 1px solid var(--border); }
.field { padding: .55rem .7rem .7rem; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); min-width: 0; }
.field--wide { grid-column: 1 / -1; }
.field dt { font-family: var(--font-form); font-size: .62rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: .3rem; }
.field dd { font-family: var(--font-form); font-size: .86rem; line-height: 1.45; color: var(--accent); min-height: 1.25em; }

/* ---------- Hero ---------- */
.hero { min-height: 100svh; display: flex; align-items: center; padding-block: 104px 88px; overflow: hidden; }
.hero__inner {
  width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(1rem, 5vw, 2rem);
  display: grid; gap: 3.5rem; align-items: center;
}
.hero__copy h1 { max-width: 15ch; }
.hero__sub { margin-top: 1.4rem; max-width: 44ch; font-size: clamp(1.02rem, 1.4vw, 1.2rem); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }

.hero__set { position: relative; max-width: 540px; width: calc(100% - 44px); justify-self: start; margin-bottom: 2.5rem; }
.copy { position: absolute; inset: 0; border-radius: var(--radius); box-shadow: var(--shadow-sheet); }
.copy--canary { background: var(--copy-canary); transform: translate(14px, 12px) rotate(1.5deg); }
.copy--pink   { background: var(--copy-pink);   transform: translate(28px, 24px) rotate(3deg); }
.copy--green  { background: var(--copy-green);  transform: translate(42px, 36px) rotate(4.5deg); }
.sheet--hero { position: relative; transform: rotate(-1deg); }

.stamp {
  position: absolute; right: 1rem; bottom: .7rem;
  font-family: var(--font-display); font-weight: 800; font-stretch: 125%; text-transform: uppercase; letter-spacing: .12em;
  font-size: .95rem; color: var(--accent); border: 2.5px solid var(--accent); padding: .3rem .7rem;
  transform: rotate(-9deg); opacity: .85; mix-blend-mode: multiply;
}
.stamp::after { content: ""; position: absolute; inset: 3px; border: 1px solid var(--accent); }

/* hero entrance */
@media (prefers-reduced-motion: no-preference) {
  .hero__copy > * { animation: rise .9s var(--ease-out) both; }
  .hero__copy > :nth-child(2) { animation-delay: .1s; }
  .hero__copy > :nth-child(3) { animation-delay: .2s; }
  .hero__set { animation: rise 1s .15s var(--ease-out) both; }
  .copy--canary { animation: fan-1 1s .35s var(--ease-out) both; }
  .copy--pink   { animation: fan-2 1s .42s var(--ease-out) both; }
  .copy--green  { animation: fan-3 1s .49s var(--ease-out) both; }
  .js .hero .stamp { opacity: 0; transform: rotate(-9deg) scale(1.6); }
  .js .hero .stamp.is-down { animation: stamp .35s var(--ease-out) forwards; }
}
@keyframes rise { from { opacity: 0; transform: translateY(24px); } }
@keyframes fan-1 { from { transform: none; } }
@keyframes fan-2 { from { transform: none; } }
@keyframes fan-3 { from { transform: none; } }
@keyframes stamp { to { opacity: .85; transform: rotate(-9deg) scale(1); } }

.caret::after { content: ""; display: inline-block; width: .55ch; height: 1em; margin-left: 1px; vertical-align: -0.12em; background: var(--accent); animation: blink .8s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

@media (min-width: 1024px) {
  .hero__inner { grid-template-columns: 1.08fr .92fr; gap: 4rem; }
  .hero__set { justify-self: end; }
}

/* ---------- Instruments (filed tabs) ---------- */
.instruments { padding-block: var(--section-pad); }
.lede { margin-top: 1rem; max-width: 52ch; }
.file { margin-top: 2.75rem; display: grid; gap: 0; }

.file__tabs { display: flex; gap: .35rem; overflow-x: auto; scrollbar-width: none; padding-top: 6px; }
.file__tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto; display: flex; flex-direction: column; align-items: flex-start; gap: .1rem;
  padding: .7rem 1rem .8rem; border: 0; border-radius: var(--radius) var(--radius) 0 0; cursor: pointer;
  font-family: var(--font-body); color: var(--text); text-align: left;
  transform: translateY(6px); transition: transform .25s var(--ease-out), filter .2s;
  filter: saturate(.75) brightness(.97);
}
.tab:hover { transform: translateY(2px); }
.tab[aria-selected="true"] { transform: none; filter: none; }
.tab--white  { background: var(--copy-white); }
.tab--canary { background: var(--copy-canary); }
.tab--pink   { background: var(--copy-pink); }
.tab--green  { background: var(--copy-green); }
.tab__code { font-family: var(--font-display); font-weight: 800; font-stretch: 120%; font-size: 1.05rem; }
.tab__name { font-size: .78rem; color: var(--text-soft); display: none; }

.panel { padding: 2rem 1.25rem 1.5rem; border-radius: 0 var(--radius) var(--radius) var(--radius); }
.panel::before { display: none; }
.panel h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-stretch: 112%; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 1.25rem; }
.fields--panel { grid-template-columns: 1fr; border-color: rgb(22 33 58 / .22); }
.fields--panel .field { border-color: rgb(22 33 58 / .22); padding: .8rem .9rem 1rem; }
.fields--panel .field dt { color: var(--text-soft); }
.fields--panel .field dd { font-family: var(--font-body); font-size: clamp(1rem, 1.3vw, 1.12rem); color: var(--text); line-height: 1.5; }
.fields--panel .field--wide dd { font-size: clamp(1.1rem, 1.7vw, 1.4rem); font-weight: 500; line-height: 1.4; max-width: 46ch; }
.panel__cta {
  display: inline-flex; align-items: center; gap: .5rem; margin-top: 1.5rem;
  font-weight: 650; color: var(--accent); text-decoration: none; border-bottom: 1.5px solid currentColor; padding-bottom: 2px;
}
.panel__cta i { transition: transform .25s var(--ease-out); }
.panel__cta:hover i { transform: translateX(4px); }
@media (prefers-reduced-motion: no-preference) {
  .panel.is-entering { animation: slide-in .45s var(--ease-out); }
}
@keyframes slide-in { from { opacity: 0; transform: translateY(14px); } }

@media (min-width: 768px) {
  .tab__name { display: block; }
  .panel { padding: 2.5rem 2.25rem 2rem; }
  .fields--panel { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .file { grid-template-columns: 300px 1fr; }
  .file__tabs { flex-direction: column; gap: .4rem; padding-top: 0; overflow: visible; }
  .tab { border-radius: var(--radius) 0 0 var(--radius); padding: 1.1rem 1.25rem; transform: translateX(10px); }
  .tab:hover { transform: translateX(4px); }
  .tab[aria-selected="true"] { transform: none; }
  .panel { border-radius: 0 var(--radius) var(--radius) var(--radius); min-height: 100%; padding: 2.75rem 3rem 2.5rem; }
  .fields--panel { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Uses (routing) ---------- */
.uses { padding-block: var(--section-pad); background: var(--surface); }
.routes { list-style: none; margin-top: 2.75rem; border-top: 2px solid var(--primary); }
.route {
  display: grid; gap: 1rem; padding: 1.6rem 0; border-bottom: 1px solid var(--rule);
}
.route__case h3 { font-size: clamp(1.35rem, 2.4vw, 1.9rem); font-stretch: 108%; font-weight: 650; letter-spacing: -0.015em; }
.route__case p { margin-top: .4rem; max-width: 54ch; }
.route__to { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.chip {
  font-family: var(--font-display); font-weight: 750; font-stretch: 115%; font-size: .92rem; color: var(--text);
  border: 1px solid rgb(22 33 58 / .25); border-radius: var(--radius); padding: .55rem .9rem; cursor: pointer;
  box-shadow: 0 1px 0 rgb(22 33 58 / .12); transition: transform .2s var(--ease-out), box-shadow .2s;
}
.chip:hover { transform: translateY(-2px); box-shadow: 0 6px 14px -6px rgb(22 33 58 / .35); }
.chip--white  { background: var(--copy-white); }
.chip--canary { background: var(--copy-canary); }
.chip--pink   { background: var(--copy-pink); }
.chip--green  { background: var(--copy-green); }
@media (min-width: 768px) {
  .route { grid-template-columns: 1fr auto; align-items: center; gap: 2rem; padding: 2rem 0; }
  .route__to { justify-content: flex-end; }
}

/* ---------- Process ---------- */
.process { padding-block: var(--section-pad); }
.boxes { list-style: none; margin-top: 2.75rem; display: grid; gap: 0; border: 1.5px solid var(--primary); background: var(--surface); }
.box { position: relative; padding: 1.75rem 1.5rem 2rem; border-bottom: 1px solid var(--border); }
.box:last-child { border-bottom: 0; }
.box i { font-size: 1.9rem; color: var(--accent); }
.box h3 { margin-top: 1.1rem; }
.box p { margin-top: .5rem; font-size: .98rem; }
.box::after {
  content: ""; position: absolute; left: 1.5rem; bottom: -7px; width: 12px; height: 12px; z-index: 1;
  background: var(--surface); border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); transform: rotate(45deg);
}
.box:last-child::after { display: none; }
@media (min-width: 768px) {
  .boxes { grid-template-columns: repeat(2, 1fr); }
  .box { border-right: 1px solid var(--border); }
  .box:nth-child(2n) { border-right: 0; }
  .box:nth-child(3) { border-bottom: 0; }
  .box::after { display: none; }
}
@media (min-width: 1024px) {
  .boxes { grid-template-columns: repeat(4, 1fr); }
  .box { border-bottom: 0; border-right: 1px solid var(--border); padding: 2rem 1.6rem 2.4rem; }
  .box:nth-child(2n) { border-right: 1px solid var(--border); }
  .box:last-child { border-right: 0; }
  .box::after {
    display: block; left: auto; right: -7px; bottom: auto; top: 2.6rem;
    border-right: 1px solid var(--border); border-bottom: 0; border-top: 1px solid var(--border);
  }
  .box:last-child::after { display: none; }
}

/* ---------- Why ---------- */
.why { padding-block: var(--section-pad); background: var(--copy-canary); position: relative; overflow: hidden; }
.why::before {
  /* guilloche-style security print */
  content: ""; position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background:
    repeating-radial-gradient(circle at 110% -10%, transparent 0 14px, rgb(22 33 58 / .07) 14px 15px),
    repeating-radial-gradient(circle at 120% 40%, transparent 0 18px, rgb(36 67 184 / .06) 18px 19px);
}
.why__inner { position: relative; display: grid; gap: 2.5rem; }
.why__statement h2 { max-width: 16ch; }
.why__statement p { margin-top: 1.25rem; max-width: 56ch; color: var(--text-soft); }
.why__list { list-style: none; display: grid; gap: 1.5rem; align-content: end; }
.why__list li { display: grid; grid-template-columns: auto 1fr; gap: 1rem; font-size: 1.02rem; line-height: 1.6; color: var(--text-soft); }
.why__list i { font-size: 1.6rem; color: var(--accent); margin-top: .1rem; }
.why__list strong { color: var(--text); font-weight: 650; }
@media (min-width: 1024px) {
  .why__inner { grid-template-columns: 1.35fr 1fr; gap: 5rem; align-items: end; }
}

/* ---------- FAQ ---------- */
.faq { padding-block: var(--section-pad); }
.faq__inner { display: grid; gap: 2rem; }
.faq__list { border-top: 2px solid var(--primary); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary {
  list-style: none; cursor: pointer; padding: 1.3rem 2.5rem 1.3rem 0; position: relative;
  font-family: var(--font-display); font-weight: 600; font-size: clamp(1.05rem, 1.5vw, 1.2rem); line-height: 1.35;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: .35rem; top: 50%; width: 12px; height: 12px; margin-top: -8px;
  border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(45deg);
  transition: transform .25s var(--ease-out);
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq summary:hover { color: var(--accent); }
.faq details p { padding: 0 2.5rem 1.5rem 0; max-width: 68ch; }
@media (min-width: 1024px) {
  .faq__inner { grid-template-columns: 1fr 1.6fr; gap: 5rem; align-items: start; }
  .faq h2 { position: sticky; top: 110px; }
}

/* ---------- Request ---------- */
.request { padding-block: var(--section-pad); background: var(--surface); }
.request__inner { display: grid; gap: 2.5rem; }
.request__aside p { margin-top: 1rem; max-width: 42ch; }
.contact { list-style: none; margin-top: 2rem; display: grid; gap: 1rem; }
.contact li { display: flex; align-items: center; gap: .8rem; color: var(--text-soft); }
.contact i { font-size: 1.35rem; color: var(--accent); }

.sheet--form { background: var(--bg); padding: 1.6rem 1.25rem 1.5rem; box-shadow: var(--shadow-sheet); }
.form-grid { display: grid; gap: 1.1rem; margin-bottom: 1.5rem; }
.input { display: grid; gap: .4rem; }
.input label { font-family: var(--font-form); font-size: .66rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-soft); }
.input input, .input select, .input textarea {
  font: inherit; font-family: var(--font-form); font-size: .9rem; color: var(--accent);
  background: var(--surface); border: 1px solid var(--border); border-bottom: 1.5px solid var(--primary);
  border-radius: var(--radius); padding: .75rem .8rem; width: 100%;
  transition: border-color .2s, box-shadow .2s;
}
.input textarea { resize: vertical; min-height: 7.5rem; line-height: 1.55; }
.input select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--primary) 50%), linear-gradient(135deg, var(--primary) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.2rem; }
.input ::placeholder { color: #6a7387; opacity: 1; }
.input input:focus, .input select:focus, .input textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgb(36 67 184 / .18); }
.input__error { display: none; font-size: .85rem; color: #a3231f; }
.input.is-invalid input, .input.is-invalid textarea { border-color: #a3231f; }
.input.is-invalid .input__error { display: block; }
.btn.is-loading { opacity: .7; pointer-events: none; }

.thanks { position: relative; padding: 2rem .25rem 1rem; text-align: left; }
.thanks h3 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); font-stretch: 110%; margin-top: 1.25rem; max-width: 18ch; }
.thanks p { margin-top: .6rem; }
.stamp--static { position: static; display: inline-block; }
.sheet--form.is-sent .form-grid, .sheet--form.is-sent > .btn { display: none; }

@media (min-width: 768px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .input--wide { grid-column: 1 / -1; }
  .sheet--form { padding: 2rem 2rem 2rem; }
}
@media (min-width: 1024px) {
  .request__inner { grid-template-columns: 1fr 1.45fr; gap: 5rem; align-items: start; }
}

/* ---------- Footer ---------- */
.footer { background: var(--footer); color: #c9d0dc; padding-block: 4.5rem 2rem; }
.footer__inner { display: grid; gap: 2.5rem; }
.footer__brand p { color: #a9b2c2; margin-top: 1rem; max-width: 40ch; font-size: .95rem; }
.footer__nav { display: grid; gap: .7rem; align-content: start; }
.footer__nav a { text-decoration: none; color: #d8dde6; font-size: .95rem; }
.footer__nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.footer__notice { grid-column: 1 / -1; font-size: .85rem; color: #a9b2c2; max-width: 80ch; padding-top: 2rem; border-top: 1px solid rgb(255 255 255 / .12); }
.footer__base { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: .75rem 2rem; justify-content: space-between; font-size: .85rem; color: #a9b2c2; }
.footer__base a { color: #d8dde6; }
.footer__base a:hover { color: #fff; }
@media (min-width: 768px) {
  .footer__inner { grid-template-columns: 2fr 1fr; }
}

/* ---------- Reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
  .js .reveal.visible { opacity: 1; transform: none; }
}