/* SPO ATELIER LIMITED — plinth-night gallery theme */

:root {
  --plinth-night: #1D1F22;
  --hall-cast: #15171A;
  --arm-slate: #3A3D42;
  --arm-cream: #F0EAD8;
  --plinth-chalk: #F2EFE7;
  --wire-nickel: #9AA2A7;
  --mobile-carmine: #96303A;
  --ink: #1A1C1F;
  --chalk-tint: #E9E4D6;
  --chalk-deep: #E2DCCB;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-size: 16px;
  margin: 0;
  background: var(--plinth-night);
  color: var(--arm-cream);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.65;
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: "Helvetica Neue", Arial, sans-serif; letter-spacing: 0.01em; line-height: 1.15; }

a { color: var(--mobile-carmine); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- reveal ---------- */
html.js .reveal-pre { opacity: 0; transform: translateY(14px); }
html.js .reveal-pre.is-shown { opacity: 1; transform: none; }
.reveal-pre { transition: opacity 600ms ease, transform 600ms ease; }

/* ---------- wire nav ---------- */
.wirenav { position: relative; background: var(--hall-cast); padding: 0 0 26px; border-bottom: 1px solid var(--wire-nickel); }
.wirenav__wire { display: block; height: 2px; background: var(--wire-nickel); margin: 0 24px; }
.wirenav__plate { display: inline-flex; align-items: center; gap: 10px; background: var(--arm-slate); padding: 12px 22px; margin: 12px 0 0 24px; border: 1px solid var(--wire-nickel); }
.wirenav__disc { width: 12px; height: 12px; border-radius: 50%; background: var(--mobile-carmine); display: inline-block; }
.wirenav__brand { color: var(--arm-cream); font-family: "Helvetica Neue", Arial, sans-serif; font-size: 15px; font-weight: 700; letter-spacing: 0.16em; }
.wirenav__tags { display: flex; flex-wrap: wrap; gap: 18px; margin: 18px 24px 0; }
.wirenav__tag { position: relative; display: inline-flex; flex-direction: column; align-items: center; background: var(--plinth-chalk); color: var(--ink); padding: 10px 16px 8px; border: 1px solid var(--wire-nickel); text-decoration: none; }
.wirenav__tag::before { content: ""; position: absolute; top: -14px; left: 50%; width: 1px; height: 14px; background: var(--wire-nickel); }
.wirenav__tag:hover { text-decoration: none; border-color: var(--mobile-carmine); }
.wtag__glyph { width: 10px; height: 10px; background: var(--mobile-carmine); margin-bottom: 5px; }
.glyph--disc { border-radius: 50%; }
.glyph--triangle { background: transparent; width: 0; height: 0; border-left: 6px solid transparent; border-right: 6px solid transparent; border-bottom: 10px solid var(--mobile-carmine); }
.glyph--square { border-radius: 0; }
.glyph--ring { background: transparent; border: 2px solid var(--mobile-carmine); border-radius: 50%; }
.glyph--diamond { transform: rotate(45deg); }
.wtag__text { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; }
.wtag--a { margin-top: 6px; }
.wtag--b { margin-top: 22px; }
.wtag--c { margin-top: 10px; }
.wtag--d { margin-top: 28px; }
.wtag--e { margin-top: 4px; }

/* ---------- hero suspended mobile ---------- */
.hall { max-width: 1180px; margin: 0 auto; padding: 0 24px 60px; }
.greatmobile { display: flex; flex-wrap: wrap; gap: 40px; padding: 64px 0 48px; align-items: center; }
.greatmobile__copy { flex: 1 1 55%; min-width: 300px; }
.greatmobile__eyebrow { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--wire-nickel); margin: 0 0 16px; }
.greatmobile__title { font-size: 52px; margin: 0 0 22px; color: var(--arm-cream); }
.gm-line { display: block; }
.gm-accent { color: var(--mobile-carmine); }
.greatmobile__lede { font-size: 17px; max-width: 620px; margin: 0 0 28px; }
.greatmobile__cta { display: flex; flex-wrap: wrap; gap: 16px; }
.button { display: inline-flex; flex-direction: column; padding: 12px 22px; border: 1px solid var(--wire-nickel); text-decoration: none; }
.button:hover { text-decoration: none; }
.button--carmine { background: var(--mobile-carmine); border-color: var(--mobile-carmine); }
.button--carmine .button__label, .button--carmine .button__code { color: var(--plinth-chalk); }
.button--ghost { background: transparent; }
.button--ghost .button__label { color: var(--arm-cream); }
.button--ghost .button__code { color: var(--wire-nickel); }
.button__code { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 10px; letter-spacing: 0.18em; }
.button__label { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 14px; font-weight: 700; }

.greatmobile__scene { flex: 1 1 45%; min-width: 300px; }
.mobile { position: relative; height: 400px; }
.mobile__ceiling { position: absolute; top: 0; left: 12%; right: 12%; height: 10px; background: var(--arm-slate); border: 1px solid var(--wire-nickel); }
.mobile__stem { position: absolute; top: 10px; width: 1px; background: var(--wire-nickel); }
.mobile__stem--one { left: 30%; height: 70px; }
.mobile__stem--two { left: 50%; height: 40px; }
.mobile__stem--three { left: 70%; height: 90px; }
.mobile__arm { position: absolute; height: 6px; background: var(--wire-nickel); }
.mobile__arm--a { top: 78px; left: 22%; width: 34%; transform: rotate(4deg); }
.mobile__arm--b { top: 48px; left: 44%; width: 30%; transform: rotate(-5deg); }
.mobile__arm--c { top: 98px; left: 30%; width: 48%; transform: rotate(3deg); }
.mobile__shape { position: absolute; display: flex; align-items: center; justify-content: center; }
.mobile__label { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }
.mobile__shape--disc { top: 96px; left: 20%; width: 74px; height: 74px; border-radius: 50%; background: var(--mobile-carmine); }
.mobile__shape--disc .mobile__label { color: var(--plinth-chalk); }
.mobile__shape--rect { top: 60px; left: 52%; width: 96px; height: 56px; background: var(--plinth-chalk); }
.mobile__shape--rect .mobile__label { color: var(--ink); }
.mobile__shape--tri { top: 128px; left: 40%; width: 0; height: 0; border-left: 34px solid transparent; border-right: 34px solid transparent; border-bottom: 58px solid var(--arm-slate); }
.mobile__shape--tri .mobile__label { color: var(--arm-cream); margin-top: 16px; }
.mobile__shape--ring { top: 168px; left: 66%; width: 48px; height: 48px; border-radius: 50%; border: 6px solid var(--arm-slate); background: transparent; }
.mobile__shape--ring .mobile__label { color: var(--arm-cream); }
.mobile__floor { position: absolute; bottom: 8px; left: 16%; right: 16%; height: 6px; background: var(--arm-slate); }

/* ---------- intro ---------- */
.introblock { padding: 48px 0; border-top: 1px solid var(--wire-nickel); }
.introblock__title { font-size: 32px; color: var(--arm-cream); margin: 0 0 26px; max-width: 760px; }
.introblock__cols { display: flex; flex-wrap: wrap; gap: 30px; }
.introblock__cols p { flex: 1 1 300px; margin: 0; }

/* ---------- pairrows ---------- */
.pairrows { display: flex; flex-direction: column; gap: 26px; padding: 30px 0; }
.pairrow { position: relative; display: flex; flex-wrap: wrap; align-items: stretch; border: 1px solid var(--wire-nickel); background: var(--plinth-chalk); color: var(--ink); }
.pairrow__beam { position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.pairrow__wire { position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--wire-nickel); }
.pairrow__counter { position: absolute; top: -5px; left: var(--offset); width: 12px; height: 12px; border-radius: 50%; background: var(--mobile-carmine); }
.pairrow__tilt { position: absolute; top: 10px; right: 14px; font-family: "Helvetica Neue", Arial, sans-serif; font-size: 10px; letter-spacing: 0.16em; color: var(--arm-slate); }
.pairrow__weight { flex: 0 0 200px; min-width: 160px; background: var(--arm-slate); color: var(--arm-cream); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; padding: 28px 16px; }
.pairrow__phase { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 13px; letter-spacing: 0.2em; color: var(--arm-cream); }
.pairrow__disc { width: 68px; height: 68px; border-radius: 50%; border: 6px solid var(--wire-nickel); }
.pairrow__plate { flex: 1 1 360px; padding: 30px 32px; }
.pairrow__name { margin: 0 0 12px; font-size: 24px; color: var(--ink); }
.pairrow__name a { color: var(--ink); }
.pairrow__name a:hover { color: var(--mobile-carmine); }
.pairrow__plate p { margin: 0; }
.pairrow--ph01 { transform: rotate(-1deg); }
.pairrow--ph02 { transform: rotate(1deg); background: var(--chalk-tint); }
.pairrow--ph03 { transform: rotate(-1deg); background: var(--chalk-deep); }
.pairrow--ph04 { transform: rotate(1deg); background: var(--mobile-carmine); color: var(--plinth-chalk); }
.pairrow--ph04 .pairrow__name, .pairrow--ph04 .pairrow__name a { color: var(--plinth-chalk); }
.pairrow--ph04 .pairrow__weight { background: var(--hall-cast); }
.pairrow--ph04 .pairrow__tilt { color: var(--plinth-chalk); }
.pairrow--ph05 { transform: rotate(-1deg); }
.pairrow--ph06 { transform: rotate(1deg); background: var(--chalk-tint); }

/* ---------- exhibit notice ---------- */
.exhibitnotice { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; background: var(--mobile-carmine); color: var(--plinth-chalk); padding: 22px 26px; margin: 44px 0; border-top: 1px solid var(--wire-nickel); border-bottom: 1px solid var(--wire-nickel); }
.exhibitnotice__wire { flex: 1 1 40px; height: 2px; background: var(--wire-nickel); }
.exhibitnotice__disc { width: 16px; height: 16px; border-radius: 50%; background: var(--plinth-chalk); flex: none; }
.exhibitnotice__text { flex: 3 1 320px; margin: 0; }
.exhibitnotice__text a { color: var(--plinth-chalk); text-decoration: underline; }

/* ---------- method ---------- */
.methodband { padding: 40px 0; border-top: 1px solid var(--wire-nickel); }
.methodband__title { font-size: 30px; color: var(--arm-cream); margin: 0 0 28px; }
.methodband__steps { display: flex; flex-wrap: wrap; gap: 22px; }
.methodstep { flex: 1 1 240px; background: var(--arm-slate); color: var(--arm-cream); padding: 24px; border: 1px solid var(--wire-nickel); }
.methodstep--even { margin-top: 26px; }
.methodstep__num { display: block; font-family: "Helvetica Neue", Arial, sans-serif; font-size: 12px; letter-spacing: 0.2em; color: var(--mobile-carmine); background: var(--plinth-chalk); padding: 3px 8px; }
.methodstep h3 { margin: 14px 0 10px; font-size: 19px; }
.methodstep p { margin: 0; }

/* ---------- closing ---------- */
.closingnote { padding: 48px 0; border-top: 1px solid var(--wire-nickel); }
.closingnote__title { font-size: 30px; color: var(--arm-cream); margin: 0 0 18px; }
.closingnote p { margin: 0; max-width: 860px; }

/* ---------- plinth footer ---------- */
.plinthbase { background: var(--hall-cast); border-top: 1px solid var(--wire-nickel); padding: 0 24px 28px; }
.plinthbase__shelf { position: relative; display: flex; gap: 30px; justify-content: center; height: 18px; border-bottom: 2px solid var(--wire-nickel); margin-bottom: 22px; }
.plinthbase__weight { width: 12px; height: 12px; border-radius: 50%; background: var(--wire-nickel); margin-top: 6px; }
.plinthbase__tags { display: flex; flex-wrap: wrap; gap: 34px; max-width: 1180px; margin: 0 auto 24px; }
.plinthbase__taggroup { display: flex; flex-direction: column; gap: 6px; }
.plinthbase__tagtitle { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--wire-nickel); }
.plinthbase__tag { display: inline-block; background: var(--plinth-chalk); color: var(--ink); padding: 6px 12px; border: 1px solid var(--wire-nickel); font-family: "Helvetica Neue", Arial, sans-serif; font-size: 13px; text-decoration: none; }
.plinthbase__tag:hover { text-decoration: none; border-color: var(--mobile-carmine); }
.plinthbase__face { max-width: 1180px; margin: 0 auto 20px; background: var(--arm-slate); border: 1px solid var(--wire-nickel); padding: 24px; }
.plinthbase__brand { display: block; font-family: "Helvetica Neue", Arial, sans-serif; font-size: 16px; font-weight: 700; letter-spacing: 0.14em; color: var(--arm-cream); margin-bottom: 10px; }
.plinthbase__blurb { margin: 0; color: var(--arm-cream); max-width: 720px; }
.plinthbase__edge { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; max-width: 1180px; margin: 0 auto; border-top: 1px solid var(--wire-nickel); padding-top: 16px; font-size: 13px; }
.plinthbase__contact { color: var(--arm-cream); }
.plinthbase__glyph { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 12px; letter-spacing: 0.2em; background: var(--mobile-carmine); color: var(--plinth-chalk); padding: 3px 10px; }
.plinthbase__copy { color: var(--wire-nickel); }

/* ---------- shared page bits (services / contact) ---------- */
.pagehead { padding: 56px 0 30px; border-bottom: 1px solid var(--wire-nickel); }
.pagehead__eyebrow { font-family: "Helvetica Neue", Arial, sans-serif; font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--wire-nickel); margin: 0 0 14px; }
.pagehead__title { font-size: 44px; color: var(--arm-cream); margin: 0 0 16px; }
.pagehead__lede { font-size: 17px; max-width: 760px; margin: 0; }
.servicestack { display: flex; flex-direction: column; gap: 28px; padding: 40px 0; }
.servicecard { display: flex; flex-wrap: wrap; gap: 24px; border: 1px solid var(--wire-nickel); padding: 26px; background: var(--plinth-chalk); color: var(--ink); }
.servicecard:nth-child(even) { background: var(--chalk-tint); margin-left: 32px; }
.servicecard:nth-child(odd) { margin-right: 32px; }
.servicecard__side { flex: 0 0 160px; background: var(--arm-slate); color: var(--arm-cream); padding: 18px; }
.servicecard__code { display: block; font-family: "Helvetica Neue", Arial, sans-serif; font-size: 12px; letter-spacing: 0.2em; }
.servicecard__body { flex: 1 1 360px; }
.servicecard__body h2 { margin: 0 0 10px; font-size: 23px; color: var(--ink); }
.servicecard__body p { margin: 0 0 12px; }
.servicecard__body p:last-child { margin-bottom: 0; }
.processband { padding: 40px 0; border-top: 1px solid var(--wire-nickel); }
.processband h2 { font-size: 28px; color: var(--arm-cream); margin: 0 0 22px; }
.processlist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.processlist li { background: var(--arm-slate); border: 1px solid var(--wire-nickel); padding: 16px 20px; color: var(--arm-cream); }
.processlist strong { color: var(--plinth-chalk); }
.ctaband { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; justify-content: space-between; background: var(--mobile-carmine); color: var(--plinth-chalk); padding: 28px 30px; margin: 40px 0; }
.ctaband__text { margin: 0; flex: 1 1 320px; }
.ctaband__text a { color: var(--plinth-chalk); text-decoration: underline; }

/* ---------- contact ---------- */
.contactgrid { display: flex; flex-wrap: wrap; gap: 30px; padding: 40px 0; }
.contactform { flex: 1 1 460px; background: var(--plinth-chalk); color: var(--ink); padding: 28px; border: 1px solid var(--wire-nickel); }
.contactform h2 { margin: 0 0 18px; font-size: 24px; color: var(--ink); }
.field { margin-bottom: 16px; }
.field label { display: block; font-family: "Helvetica Neue", Arial, sans-serif; font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 6px; color: var(--arm-slate); }
.field input, .field textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--arm-slate); background: var(--plinth-chalk); color: var(--ink); font-family: inherit; font-size: 15px; }
.field textarea { min-height: 140px; resize: vertical; }
.contactform__submit { background: var(--mobile-carmine); color: var(--plinth-chalk); border: 1px solid var(--mobile-carmine); padding: 12px 24px; font-family: "Helvetica Neue", Arial, sans-serif; font-size: 14px; font-weight: 700; cursor: pointer; }
.formnote { font-size: 13px; color: var(--arm-slate); margin: 12px 0 0; }
.contactaside { flex: 1 1 300px; display: flex; flex-direction: column; gap: 20px; }
.infoblock { background: var(--arm-slate); border: 1px solid var(--wire-nickel); padding: 22px; color: var(--arm-cream); }
.infoblock h3 { margin: 0 0 12px; font-size: 18px; color: var(--plinth-chalk); }
.infoblock p { margin: 0 0 8px; }
.infoblock a { color: var(--plinth-chalk); }
.faqband { padding: 40px 0; border-top: 1px solid var(--wire-nickel); }
.faqband h2 { font-size: 28px; color: var(--arm-cream); margin: 0 0 22px; }
.faqitem { background: var(--plinth-chalk); color: var(--ink); border: 1px solid var(--wire-nickel); padding: 20px 24px; margin-bottom: 16px; }
.faqitem h3 { margin: 0 0 8px; font-size: 18px; color: var(--ink); }
.faqitem p { margin: 0; }

/* ---------- responsive ---------- */
@media (max-width: 720px) {
  .wirenav__wire { margin: 0 14px; }
  .wirenav__plate { margin-left: 14px; }
  .wirenav__tags { flex-direction: column; gap: 10px; margin: 18px 14px 0; }
  .wirenav__tag { width: 100%; flex-direction: row; justify-content: flex-start; gap: 10px; }
  .wirenav__tag::before { display: none; }
  .wtag--a, .wtag--b, .wtag--c, .wtag--d, .wtag--e { margin-top: 0; }
  .wtag__glyph { margin-bottom: 0; }
  .greatmobile__title { font-size: 36px; }
  .hall { padding: 0 14px 40px; }
  .pairrow--ph01, .pairrow--ph02, .pairrow--ph03, .pairrow--ph04, .pairrow--ph05, .pairrow--ph06 { transform: none; }
  .servicecard:nth-child(even) { margin-left: 0; }
  .servicecard:nth-child(odd) { margin-right: 0; }
}