/* Physical Performance — design system
   Source file. Edit here, then run `python3 scripts/build.py`, which writes a
   content-hashed copy to site/assets/ and updates every page reference.

   Palette, logo and photography follow the Physical Performance Website Design
   Pack: near-black and charcoal as the dominant environment, white for reading
   surfaces, and the brand blue sampled from the supplied logo as the single
   restrained accent. No JavaScript, no external fonts, no remote assets. */

/* ---------------------------------------------------------------- tokens - */

:root {
  /* Dark environment — the brand's home ground. */
  --ink: #0b0d0f;
  --ink-2: #121619;
  --ink-3: #1a1f23;
  --ink-line: #262c31;

  /* Light reading surfaces. */
  --paper: #ffffff;
  --paper-2: #f3f4f6;
  --line: #e3e5e8;
  --line-strong: #c6cad0;

  /* Text */
  --text: #0d1114;
  --text-muted: #545c64;
  --on-dark: #f2f4f6;
  --on-dark-muted: #a5aeb6;

  /* Brand blue, sampled from the supplied colour logo. */
  --blue: #0d6fc6;
  --blue-hover: #0b5faa;
  --blue-bright: #4ea6f2;
  --blue-deep: #0a5599;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;

  --fs-xs: 0.75rem;
  --fs-sm: 0.8125rem;
  --fs-base: 1.0625rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.3125rem;
  --fs-xl: 1.625rem;
  --fs-2xl: clamp(1.6rem, 1.1rem + 2.1vw, 2.5rem);
  --fs-3xl: clamp(2rem, 1.3rem + 3vw, 3.4rem);
  --fs-4xl: clamp(2.4rem, 1.4rem + 4.6vw, 4.75rem);

  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 2.5rem;
  --sp-8: 3rem;
  --sp-9: 4rem;
  --sp-10: 5rem;
  --section-y: clamp(3.5rem, 7.5vw, 7rem);

  --wrap: 1240px;
  --wrap-mid: 980px;
  --wrap-narrow: 720px;
  --gutter: clamp(1.25rem, 5vw, 3rem);

  --radius: 4px;
  --border: 1px solid var(--line);
}

/* ------------------------------------------------------------- elements - */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

h1, h2, h3, h4 {
  margin: 0 0 var(--sp-4);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 800;
  font-stretch: 95%;
  text-wrap: balance;
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-lg); letter-spacing: -0.015em; font-weight: 700; }
h4 { font-size: var(--fs-md); letter-spacing: -0.01em; font-weight: 700; }

p, ul, ol { margin: 0 0 var(--sp-4); }
p:last-child, ul:last-child, ol:last-child { margin-bottom: 0; }

a { color: inherit; text-underline-offset: 0.25em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--blue-deep);
  outline-offset: 3px;
  border-radius: 2px;
}

.on-dark :focus-visible,
.site-header :focus-visible,
.site-footer :focus-visible { outline-color: var(--blue-bright); }

address { font-style: normal; }
img { max-width: 100%; height: auto; display: block; }
hr { border: 0; border-top: var(--border); margin: var(--sp-7) 0; }

/* --------------------------------------------------------------- layout - */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--mid { max-width: var(--wrap-mid); }
.wrap--narrow { max-width: var(--wrap-narrow); }

.band {
  padding-block: var(--section-y);
  background: var(--paper);
  color: var(--text);
}

.band--tight { padding-block: clamp(2.25rem, 5vw, 4rem); }
.band--tint { background: var(--paper-2); }

.band--dark {
  background: var(--ink);
  color: var(--on-dark);
}

.band--dark h1,
.band--dark h2,
.band--dark h3,
.band--dark h4 { color: var(--on-dark); }

.band--dark p,
.band--dark li { color: var(--on-dark-muted); }

.band--charcoal { background: var(--ink-2); color: var(--on-dark); }
.band--charcoal h2, .band--charcoal h3 { color: var(--on-dark); }
.band--charcoal p, .band--charcoal li { color: var(--on-dark-muted); }

.skip {
  position: absolute;
  left: var(--sp-4);
  top: -6rem;
  z-index: 30;
  background: var(--blue);
  color: #fff;
  padding: var(--sp-3) var(--sp-4);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius);
}

.skip:focus { top: var(--sp-3); }

/* ---------------------------------------------------------------- header - */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ink);
  border-bottom: 1px solid var(--ink-line);
  color: var(--on-dark);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: 3.5rem;
  padding-block: var(--sp-2);
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  text-decoration: none;
  flex: none;
}

.brand img {
  width: auto;
  height: 1.75rem;
}

.brand { order: 1; }
.header-cta { order: 2; }

/* Mobile: navigation drops to its own full-width row so four destinations
   fit at 320px, and the Enquire button stays beside the logo. */
.nav {
  order: 3;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  border-top: 1px solid var(--ink-line);
}

.nav a:not(.btn) {
  text-decoration: none;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-dark);
  padding-block: 0.7rem;
  border-bottom: 2px solid transparent;
}

.nav a:not(.btn):hover { border-bottom-color: var(--ink-line); }
.nav a:not(.btn)[aria-current="page"] { border-bottom-color: var(--blue); }

/* --------------------------------------------------------------- buttons - */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  min-height: 3rem;
  padding: 0.8rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn--primary { background: var(--blue); color: #fff; }
.btn--primary:hover { background: var(--blue-hover); }

.btn--outline { border-color: var(--line-strong); color: var(--text); }
.btn--outline:hover { border-color: var(--ink); background: var(--paper-2); }

.btn--onDark { border-color: rgba(242, 244, 246, 0.35); color: var(--on-dark); }
.btn--onDark:hover { background: rgba(242, 244, 246, 0.1); border-color: var(--on-dark); }

.btn--sm { min-height: 2.5rem; padding: 0.45rem 1.1rem; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

/* ---------------------------------------------------------------- pieces - */

.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin: 0 0 var(--sp-4);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 2px;
  background: var(--blue);
  flex: none;
}

.band--dark .eyebrow,
.band--charcoal .eyebrow { color: var(--on-dark-muted); }

.hero .eyebrow { color: var(--on-dark); }

.lead {
  font-size: var(--fs-md);
  color: var(--text-muted);
  max-width: 62ch;
}

.band--dark .lead,
.band--charcoal .lead { color: var(--on-dark-muted); }

.section-head {
  max-width: var(--wrap-narrow);
  margin-bottom: var(--sp-8);
}

.fineprint {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-muted);
}

.band--dark .fineprint,
.band--charcoal .fineprint { color: var(--on-dark-muted); }

/* ------------------------------------------------------------------ hero - */

.hero {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: clamp(30rem, 74vh, 44rem);
  padding-block: var(--sp-9) var(--sp-8);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
}

/* Directional scrim: heavy enough to read against, light enough that the
   facility is still the thing you look at. */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to top, rgba(11, 13, 15, 0.96) 0%, rgba(11, 13, 15, 0.9) 32%,
                    rgba(11, 13, 15, 0.62) 60%, rgba(11, 13, 15, 0.3) 100%),
    linear-gradient(to right, rgba(11, 13, 15, 0.55) 0%, rgba(11, 13, 15, 0) 62%);
}

.hero__inner { width: 100%; }

.hero .eyebrow { margin-bottom: var(--sp-5); }

.hero h1 {
  font-size: var(--fs-4xl);
  letter-spacing: -0.04em;
  color: var(--on-dark);
  max-width: 16ch;
  margin-bottom: var(--sp-5);
}

.hero__services {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-6);
  margin: 0 0 var(--sp-6);
  padding: 0;
  list-style: none;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-dark);
}

.hero__services li {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
}

.hero__services li::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--blue);
  flex: none;
  transform: translateY(-1px);
}

.hero .btn-row .btn { flex: 1 1 100%; }

.hero__note {
  margin-top: var(--sp-5);
  font-size: var(--fs-sm);
  color: var(--on-dark-muted);
  max-width: 46ch;
}

/* ------------------------------------------------------------ page heads - */

.page-head {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  padding-block: clamp(3rem, 7vw, 5.5rem);
}

.page-head h1 { color: var(--on-dark); max-width: 17ch; }
.page-head .lead { color: var(--on-dark-muted); margin-top: var(--sp-5); }

/* ------------------------------------------------------------- statement - */

.statement {
  font-size: clamp(1.6rem, 1rem + 2.6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 800;
  font-stretch: 95%;
  max-width: 22ch;
  margin: 0 0 var(--sp-6);
  text-wrap: balance;
}

.statement em { font-style: normal; color: var(--blue); }
.band--dark .statement em { color: var(--blue-bright); }

/* --------------------------------------------------------------- pillars - */

.pillars {
  display: grid;
  gap: var(--sp-6);
  margin: 0;
  padding: 0;
  list-style: none;
}

.pillars > li { border-top: 2px solid var(--blue); padding-top: var(--sp-4); }

.pillars h3 {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}

.pillars p { color: var(--text-muted); margin: 0; }

/* -------------------------------------------------------------- services - */

.service {
  display: grid;
  gap: var(--sp-4);
  padding-block: var(--sp-8);
  border-top: var(--border);
  align-items: start;
}

.band--dark .service { border-top-color: var(--ink-line); }

.service__index {
  margin-bottom: 0;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--blue);
}

.band--dark .service__index { color: var(--blue-bright); }

.service h2 {
  font-size: clamp(1.6rem, 1.1rem + 1.9vw, 2.4rem);
  margin-bottom: var(--sp-4);
}

.service__body > * + * { margin-top: var(--sp-4); }

.service__cap {
  display: inline-block;
  margin-top: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: var(--blue);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
}

/* --------------------------------------------------------------- process - */

.process {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: stage;
}

.process > li {
  counter-increment: stage;
  border-top: 1px solid var(--ink-line);
  padding-block: var(--sp-5);
}

.process__stage {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark);
}

.process__stage::before {
  content: "0" counter(stage);
  color: var(--blue-bright);
  letter-spacing: 0.1em;
}

.process p { margin: 0; font-size: var(--fs-sm); }

/* --------------------------------------------------------------- figures - */

.figure {
  margin: 0;
  background: var(--ink);
}

.figure img { width: 100%; }

.figure figcaption {
  padding: var(--sp-4) 0 0;
  font-size: var(--fs-sm);
  color: var(--on-dark-muted);
}

.figure--full img {
  max-height: 78vh;
  object-fit: cover;
}

.figure--full figcaption {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: var(--sp-4) var(--sp-6);
}

.split {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.split__media img {
  width: 100%;
  border-radius: var(--radius);
}

/* --------------------------------------------------------------- gallery - */

.gallery {
  display: grid;
  gap: var(--sp-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.gallery figure { margin: 0; }

.gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
}

.gallery figcaption {
  padding-top: var(--sp-3);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--on-dark-muted);
}

/* ----------------------------------------------------------------- lists - */

.ticks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--sp-3);
  color: var(--text-muted);
}

.ticks li {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
}

.ticks li::before {
  content: "";
  flex: none;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--blue);
  transform: translateY(-0.1rem);
}

.band--dark .ticks,
.band--charcoal .ticks { color: var(--on-dark-muted); }

.band--dark .ticks li::before,
.band--charcoal .ticks li::before { background: var(--blue-bright); }

/* --------------------------------------------------------------- contact - */

.contact-actions {
  display: grid;
  gap: var(--sp-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-actions > li { display: flex; }

.contact-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  justify-content: center;
  min-height: 6rem;
  padding: var(--sp-5);
  background: var(--ink-2);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.contact-card:hover { border-color: var(--blue); background: var(--ink-3); }

.contact-card__label {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-bright);
}

.contact-card__value {
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--on-dark);
  overflow-wrap: anywhere;
}

.contact-card__value--email { font-size: var(--fs-md); }

.contact-card__note {
  font-size: var(--fs-sm);
  color: var(--on-dark-muted);
}

.info-block {
  border: var(--border);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: var(--paper);
}

.info-block h3 { margin-bottom: var(--sp-4); }

.info-block dl {
  margin: 0;
  display: grid;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
}

.info-block dt {
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.info-block dd { margin: var(--sp-1) 0 0; }
.info-block dd a { display: inline-block; padding-block: var(--sp-1); }

/* ------------------------------------------------------------- cta panel - */

.cta { display: grid; gap: var(--sp-6); align-items: center; }
.cta h2 { margin-bottom: var(--sp-3); }

/* ---------------------------------------------------------------- footer - */

.site-footer {
  background: var(--ink-2);
  color: var(--on-dark-muted);
  padding-block: var(--sp-9) var(--sp-7);
  font-size: var(--fs-sm);
  line-height: 1.7;
  border-top: 1px solid var(--ink-line);
}

.site-footer__grid { display: grid; gap: var(--sp-7); }

.site-footer h2 {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark);
  margin-bottom: var(--sp-4);
}

.site-footer a { color: var(--on-dark); text-decoration-color: var(--ink-line); }
.site-footer a:hover { text-decoration-color: var(--blue-bright); }

.site-footer__logo { height: 1.9rem; width: auto; margin-bottom: var(--sp-4); }

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-2);
}

.site-footer__base {
  margin-top: var(--sp-8);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--ink-line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-6);
  justify-content: space-between;
  font-size: var(--fs-xs);
}

/* ----------------------------------------------------------------- prose - */

.prose { max-width: 68ch; }
.prose h1 { margin-bottom: var(--sp-5); }

.prose h2 {
  font-size: var(--fs-xl);
  margin-top: var(--sp-8);
  padding-top: var(--sp-5);
  border-top: var(--border);
}

.prose h3 { margin-top: var(--sp-6); }
.prose p, .prose li { color: var(--text-muted); }
.prose li { margin-bottom: var(--sp-2); }
.prose address { margin-bottom: var(--sp-4); }
.prose .lead { color: var(--text); font-size: var(--fs-md); }

.notfound { padding-block: clamp(3rem, 10vw, 7rem); }
.notfound__more { margin-top: var(--sp-8); }

/* ------------------------------------------------------------ breakpoints */

@media (min-width: 26em) {
  .brand img { height: 2rem; }
}

@media (min-width: 40em) {
  .hero .btn-row .btn { flex: 0 0 auto; }
  .contact-actions { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .pillars { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 56em) {
  .grid--2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 5vw, 4rem); }
  .split { grid-template-columns: 1fr 1fr; }
  .split--wide-media { grid-template-columns: 1.15fr 0.85fr; }
  .service { grid-template-columns: 7rem 1fr 1fr; gap: var(--sp-7); padding-block: var(--sp-9); }
  .process { grid-template-columns: repeat(5, 1fr); column-gap: var(--sp-5); }
  .process > li { border-top-width: 2px; border-top-color: var(--blue); }
  .contact-actions { grid-template-columns: repeat(3, 1fr); }
  .cta { grid-template-columns: 1.5fr auto; gap: var(--sp-8); }
  .site-footer__grid { grid-template-columns: 1.7fr 1fr 1fr; gap: var(--sp-8); }
  .gallery { grid-template-columns: repeat(4, 1fr); }
  .hero { min-height: clamp(34rem, 80vh, 48rem); }
  .statement em { white-space: nowrap; }
  .site-header__inner { flex-wrap: nowrap; min-height: 4.25rem; padding-block: var(--sp-3); }
  .nav {
    order: 2;
    width: auto;
    border-top: 0;
    justify-content: flex-start;
    gap: clamp(0.8rem, 2.2vw, 1.75rem);
  }
  .nav a:not(.btn) { font-size: var(--fs-sm); padding-block: var(--sp-3); }
  .header-cta { order: 3; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

@media print {
  .site-header, .skip, .btn, .hero__media, .figure, .gallery { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .band, .hero, .page-head { padding-block: 1rem; background: #fff; color: #000; }
  .hero::after { display: none; }
  .band--dark, .band--charcoal, .site-footer, .page-head { background: #fff; color: #000; }
  .band--dark p, .band--charcoal p, .site-footer, .page-head .lead { color: #000; }
  .hero h1, .page-head h1 { color: #000; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; }
}