/* Sterling Pressure: brushed-steel neutrals, one accent (jet yellow), Archivo with its width axis. */
:root {
  --graphite: #1b232c;
  --graphite-2: #26313c;
  --steel: #566270;
  --silver: #b8c1ca;
  --silver-2: #dce2e7;
  --mist: #eef2f5;
  --white: #fff;
  --jet: #ffc93c;
  --jet-deep: #f0b417;
  --on-dark: #e9edf1;
  --on-dark-muted: #aeb8c2;
  --error: #b42318;

  --font: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  /* modular scale, ratio 1.25, base 17px */
  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.328rem;
  --step-2: 1.66rem;
  --step-3: clamp(1.75rem, 1.35rem + 1.3vw, 2.6rem);
  --step-4: clamp(2.45rem, 1.35rem + 3.4vw, 4.25rem);

  --container: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(64px, 8vw, 112px);
  --radius-s: 10px;
  --radius-m: 14px;
  --radius-l: 24px;
  --focus: var(--graphite);
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 12px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0;
  background: var(--white);
  color: var(--graphite);
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, canvas { display: block; max-width: 100%; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
p a, dd a, li a { font-weight: 600; text-decoration-line: underline; }
button, input, textarea { font: inherit; color: inherit; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
.section--graphite, .site-footer { --focus: var(--jet); }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--graphite); color: var(--white); padding: 10px 16px; border-radius: var(--radius-s);
  font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: calc(var(--container) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- type ---------- */
.section-title, .hero__title, .enquiry__title, .service-group__title, .why-item__title, .step__title {
  font-stretch: 112%;
  font-weight: 720;
  letter-spacing: -0.015em;
  line-height: 1.1;
  text-wrap: balance;
}
.section-title { font-size: var(--step-3); margin-bottom: 0.6em; }
p { max-width: 68ch; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px; border-radius: 12px; border: 1.5px solid transparent;
  font-size: 1rem; font-weight: 640; font-stretch: 106%; letter-spacing: 0.005em; line-height: 1.1;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, opacity 0.18s ease;
}
.btn--large { min-height: 56px; padding: 0 28px; font-size: var(--step-0); }
.btn--block { width: 100%; }
.btn--accent { background: var(--jet); color: var(--graphite); border-color: var(--jet); }
.btn--accent:hover { background: var(--jet-deep); border-color: var(--jet-deep); }
.btn--outline { background: transparent; color: var(--graphite); border-color: var(--graphite); }
.btn--outline:hover { background: var(--graphite); color: var(--white); }
.btn--dark { background: var(--graphite); color: var(--white); border-color: var(--graphite); }
.btn--dark:hover { background: var(--graphite-2); }
.btn[data-state="sending"] { opacity: 0.72; cursor: progress; }
.btn[data-state="sent"] { background: var(--graphite); border-color: var(--graphite); color: var(--white); }
.btn[data-state="error"] { background: var(--error); border-color: var(--error); color: var(--white); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(243, 245, 247, 0.88);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.site-header[data-scrolled] { border-bottom-color: var(--silver-2); background: rgba(243, 245, 247, 0.95); }
.site-header__inner { display: flex; align-items: center; gap: 24px; min-height: var(--header-h); }

.wordmark { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--graphite); }
.wordmark__mark { width: 38px; height: 38px; flex: none; }
.wordmark__text { font-size: 1.32rem; font-stretch: 125%; line-height: 1; letter-spacing: 0.01em; white-space: nowrap; }
.wordmark__sterling { font-weight: 800; }
.wordmark__pressure { font-weight: 420; color: var(--steel); }

.site-nav { margin-left: auto; }
.site-nav__list { display: flex; flex-wrap: wrap; gap: 4px 2px; }
.site-nav__list a {
  display: block; padding: 10px 12px; border-radius: 8px; text-decoration: none;
  font-weight: 560; font-size: 0.97rem; color: var(--graphite);
}
.site-nav__list a:hover { background: rgba(27, 35, 44, 0.06); }
.site-nav__quote { display: none; }
.site-header__call { flex: none; }

.nav-toggle {
  display: none; margin-left: auto; align-items: center; gap: 10px;
  min-height: 44px; padding: 0 14px; border-radius: 10px; border: 1.5px solid var(--graphite);
  background: transparent; font-weight: 600; cursor: pointer;
}
.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after {
  display: block; width: 18px; height: 2px; background: var(--graphite); border-radius: 2px; position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 479.98px) {
  .site-header__inner { gap: 12px; }
  .wordmark { gap: 9px; }
  .wordmark__mark { width: 32px; height: 32px; }
  .wordmark__text { font-size: 1.08rem; }
  .nav-toggle { padding: 0 12px; }
  .nav-toggle__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}
@media (max-width: 1079.98px) {
  .site-header__call { display: none; }
  .js .nav-toggle { display: inline-flex; }
  .js .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--white); border-bottom: 1px solid var(--silver-2);
    box-shadow: 0 24px 40px -28px rgba(27, 35, 44, 0.45);
    display: none;
  }
  .js .site-nav.is-open { display: block; }
  .js .site-nav__list { flex-direction: column; padding: 8px var(--gutter) 18px; max-width: calc(var(--container) + 2 * var(--gutter)); margin-inline: auto; }
  .js .site-nav__list a { padding: 14px 4px; font-size: var(--step-0); border-bottom: 1px solid var(--mist); border-radius: 0; }
  .js .site-nav__quote { display: block; }
  .site-nav { margin-left: 0; }
}

/* ---------- hero (brushed silver) ---------- */
.hero {
  position: relative;
  padding-block: clamp(40px, 6vw, 88px) clamp(48px, 6vw, 80px);
  background:
    linear-gradient(112deg, rgba(255, 255, 255, 0) 28%, rgba(255, 255, 255, 0.6) 47%, rgba(255, 255, 255, 0) 66%),
    repeating-linear-gradient(0deg, rgba(27, 35, 44, 0.022) 0 1px, rgba(255, 255, 255, 0.03) 1px 3px),
    linear-gradient(180deg, #f3f5f7 0%, #dde3e8 100%);
  border-bottom: 1px solid #c9d1d8;
}
.hero__grid { display: grid; gap: 40px; align-items: start; }
.hero__title { font-size: var(--step-4); font-stretch: 118%; font-weight: 780; line-height: 1.02; letter-spacing: -0.022em; max-width: 13em; }
.hero__lead { margin-top: 22px; font-size: var(--step-1); line-height: 1.5; color: #3d4955; max-width: 34em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero__assurances { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 30px; font-weight: 560; font-size: 0.97rem; }
.hero__assurances li { display: inline-flex; align-items: center; gap: 8px; }
.hero__assurances svg { width: 20px; height: 20px; fill: none; stroke: var(--graphite); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; flex: none; }

@media (min-width: 1080px) {
  .hero__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 64px; }
}

/* ---------- enquiry card ---------- */
.enquiry {
  position: relative;
  display: flex; flex-direction: column; gap: 14px;
  width: 100%; max-width: 560px;
  background: var(--white);
  border: 1px solid #cdd5dc;
  border-radius: var(--radius-l);
  padding: clamp(20px, 3vw, 30px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset, 0 30px 60px -36px rgba(27, 35, 44, 0.55);
}
.enquiry__title { font-size: var(--step-1); }
.enquiry__note { font-size: 0.95rem; color: var(--steel); margin-top: -6px; }
.enquiry__note--phone { display: none; }
.enquiry__message { min-height: 168px; resize: vertical; }
@media (min-width: 810px) and (max-width: 1079.98px) { .enquiry { max-width: 640px; } }

@media (max-width: 809.98px) {
  .enquiry__note--wide { display: none; }
  .enquiry__note--phone { display: block; }
  .js .enquiry__email { display: none; }
}

/* ---------- inputs ---------- */
.input {
  width: 100%; min-height: 50px; padding: 13px 15px;
  background: #f6f8fa; border: 1.5px solid #cfd6dd; border-radius: var(--radius-m);
  font-size: 1rem; line-height: 1.45; color: var(--graphite);
  transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}
.input::placeholder { color: #5b6673; opacity: 1; }
.input:hover { border-color: #aeb8c2; }
.input:focus { outline: none; border-color: var(--graphite); background: var(--white); box-shadow: 0 0 0 4px rgba(255, 201, 60, 0.55); }
textarea.input { display: block; }

/* ---------- washable slab ---------- */
.slab {
  position: relative; overflow: hidden;
  height: clamp(150px, 17vw, 250px);
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0) 38%, #c9ced3 38% 64%, rgba(0, 0, 0, 0) 64%),
    linear-gradient(90deg, #4b5446, #5c5646 50%, #4a5244);
  touch-action: pan-y;
  cursor: crosshair;
  user-select: none;
  -webkit-user-select: none;
}
.slab__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.slab__caption {
  position: absolute; right: var(--gutter); bottom: 14px; margin: 0;
  padding: 7px 14px; border-radius: 999px;
  background: rgba(27, 35, 44, 0.84); color: var(--white);
  font-size: 0.9rem; font-weight: 560; letter-spacing: 0.005em;
  pointer-events: none;
}
.slab__caption--touch { display: none; }
@media (pointer: coarse) {
  .slab__caption--mouse { display: none; }
  .slab__caption--touch { display: inline; }
}

/* ---------- sections ---------- */
.section { padding-block: var(--section); }
.section--mist { background: var(--mist); }
.section--graphite {
  color: var(--on-dark);
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.018) 0 1px, rgba(0, 0, 0, 0) 1px 3px),
    linear-gradient(160deg, #222c36 0%, #1b232c 55%, #151c23 100%);
}
.section--graphite p { color: var(--on-dark-muted); }
.section--graphite a { color: var(--jet); }

/* services */
.services__grid { display: grid; gap: 40px; }
.services__intro p { color: var(--steel); }
.services__intro p + p { margin-top: 16px; }
.services__ask a { color: var(--graphite); }
.service-groups { display: grid; gap: 44px 48px; }
.service-group { border-top: 2px solid var(--graphite); padding-top: 22px; }
.service-group__icon { width: 34px; height: 34px; fill: none; stroke: var(--graphite); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 14px; }
.service-group__title { font-size: var(--step-1); margin-bottom: 14px; }
.service-list > div + div { margin-top: 16px; }
.service-list dt { font-weight: 650; font-size: var(--step-0); }
.service-list dd { color: var(--steel); font-size: 0.98rem; margin-top: 2px; }
@media (min-width: 640px) { .service-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1080px) {
  .services__grid { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 64px; }
  .services__intro { position: sticky; top: calc(var(--header-h) + 32px); align-self: start; }
}

/* why */
.why__grid { display: grid; gap: 36px; }
.why__intro p { color: var(--steel); }
.why-list { display: grid; gap: 0 48px; }
.why-item { display: flex; gap: 18px; padding-block: 22px; border-top: 1px solid #cfd6dd; }
.why-item__icon { width: 34px; height: 34px; flex: none; fill: none; stroke: var(--graphite); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.why-item__title { font-size: 1.12rem; margin-bottom: 4px; }
.why-item p { color: var(--steel); font-size: 0.98rem; }
@media (min-width: 810px) { .why-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1080px) { .why__grid { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 64px; } }

/* how */
.steps { display: grid; gap: 40px; margin-top: 12px; counter-reset: none; }
.step { border-top: 1px solid var(--silver-2); padding-top: 20px; }
.step__number {
  display: block; font-size: clamp(4rem, 3rem + 3vw, 6rem); line-height: 0.9; font-weight: 800; font-stretch: 125%;
  color: transparent; -webkit-text-stroke: 1.6px var(--steel); margin-bottom: 18px;
}
.step__title { font-size: var(--step-1); margin-bottom: 8px; }
.step p { color: var(--steel); }
@media (min-width: 810px) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; } }

/* service area */
.area__grid { display: grid; gap: 40px; align-items: start; }
.area__intro .section-title { color: var(--white); }
.area__rings { width: min(280px, 70%); margin-top: 36px; }
.area__ring { fill: none; stroke: rgba(233, 237, 241, 0.22); stroke-width: 1.2; }
.area__ring--outer { stroke: rgba(233, 237, 241, 0.42); stroke-dasharray: 3 6; }
.area__ticks { stroke: rgba(233, 237, 241, 0.42); stroke-width: 1.2; }
.area__base { fill: var(--jet); }
.area__label { fill: var(--on-dark); font: 600 15px var(--font); font-stretch: 112%; }
.area__label--small { fill: var(--on-dark-muted); font-size: 13px; font-weight: 500; }
.suburbs { columns: 2; column-gap: 32px; font-size: var(--step-0); }
.suburbs li { break-inside: avoid; padding: 9px 0; border-bottom: 1px solid rgba(233, 237, 241, 0.12); color: var(--on-dark); }
.suburbs__base { font-weight: 700; }
.suburbs__base::before { content: ""; display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--jet); margin-right: 10px; vertical-align: 0.08em; }
.suburbs__base span { font-weight: 400; color: var(--on-dark-muted); }
@media (min-width: 810px) { .suburbs { columns: 3; } }
@media (min-width: 1080px) { .area__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; } }
@media (max-width: 809.98px) { .area__rings { display: none; } }

/* quote */
.quote__grid { display: grid; gap: 32px; align-items: start; }
.quote__intro p { color: var(--steel); }
.quote__intro p + p { margin-top: 14px; }
.quote-form {
  display: grid; gap: 18px 20px;
  background: var(--white); border: 1px solid #d3dae0; border-radius: var(--radius-l);
  padding: clamp(20px, 3.4vw, 36px);
  box-shadow: 0 30px 60px -44px rgba(27, 35, 44, 0.5);
}
.field { display: flex; flex-direction: column; gap: 7px; min-width: 0; }
.field > label, .choices legend { font-weight: 620; font-size: 0.97rem; }
.optional { font-weight: 400; color: var(--steel); }
.choices { border: 0; padding: 0; margin: 0; }
.choices legend { padding: 0; margin-bottom: 10px; }
.choices__grid { display: grid; gap: 10px; }
.choice {
  position: relative; display: flex; align-items: center; gap: 12px;
  min-height: 50px; padding: 10px 14px; border-radius: 12px;
  border: 1.5px solid #d3dae0; background: #f6f8fa; cursor: pointer;
  font-weight: 540; font-size: 0.97rem; line-height: 1.3;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.choice:hover { border-color: #aeb8c2; }
.choice input {
  appearance: none; -webkit-appearance: none; margin: 0; flex: none;
  width: 22px; height: 22px; border-radius: 6px; border: 1.5px solid #8c98a4; background: var(--white);
  display: grid; place-content: center; cursor: pointer;
}
.choice input::after {
  content: ""; width: 12px; height: 7px; border-left: 2.5px solid var(--graphite); border-bottom: 2.5px solid var(--graphite);
  transform: translateY(-1px) rotate(-45deg) scale(0); transition: transform 0.12s ease;
}
.choice input:checked { background: var(--jet); border-color: var(--graphite); }
.choice input:checked::after { transform: translateY(-1px) rotate(-45deg) scale(1); }
.choice input:focus-visible { outline: 3px solid var(--graphite); outline-offset: 2px; }
.choice:has(input:checked) { border-color: var(--graphite); background: var(--white); }
.quote-form__submit { gap: 12px; align-items: flex-start; }
@media (min-width: 560px) { .choices__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 640px) {
  .quote-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field--full { grid-column: 1 / -1; }
}
@media (min-width: 1080px) {
  .quote__grid { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 64px; }
  .choices__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .quote__intro { position: sticky; top: calc(var(--header-h) + 32px); }
}

/* form status line (both forms) */
.form-status { font-size: 0.95rem; font-weight: 560; min-height: 1.4em; margin: 0; }
.form-status:empty { display: none; }
.form-status[data-tone="ok"] { color: var(--graphite); }
.form-status[data-tone="error"] { color: var(--error); }

/* honeypots: off-screen for people, present for bots */
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

/* faq */
.faq__inner { max-width: calc(860px + 2 * var(--gutter)); }
.faq-list { border-top: 1px solid var(--silver-2); }
.faq-item { border-bottom: 1px solid var(--silver-2); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 2px; cursor: pointer; list-style: none;
  font-size: 1.14rem; font-weight: 620; font-stretch: 106%; line-height: 1.35;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: ""; flex: none; width: 14px; height: 14px;
  background:
    linear-gradient(var(--graphite), var(--graphite)) center / 14px 2px no-repeat,
    linear-gradient(var(--graphite), var(--graphite)) center / 2px 14px no-repeat;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 2px 24px; color: var(--steel); }

/* footer */
.site-footer {
  color: var(--on-dark);
  background: linear-gradient(180deg, #1b232c, #151c23);
  padding-block: 48px;
}
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 28px 48px; justify-content: space-between; align-items: flex-start; }
.site-footer__name { font-weight: 700; font-stretch: 112%; font-size: var(--step-0); }
.site-footer__contact { color: var(--on-dark-muted); margin-top: 6px; }
.site-footer__contact a { color: var(--jet); }
.site-footer__nav ul { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.site-footer__nav a { color: var(--on-dark); text-decoration: none; font-weight: 520; }
.site-footer__nav a:hover { text-decoration: underline; }

/* phone action bar */
.action-bar { display: none; }
@media (max-width: 809.98px) {
  .action-bar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: rgba(243, 245, 247, 0.94);
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
    border-top: 1px solid var(--silver-2);
  }
  body { padding-bottom: calc(70px + env(safe-area-inset-bottom)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* simple pages (404, thanks, form error) */
.plain { min-height: 100vh; display: flex; align-items: center; border-bottom: 0; }
.plain__inner { display: grid; justify-items: start; gap: 0; }
.plain__title { margin-top: 48px; }