/* ==========================================================================
   Dr Steve Conteh — drsteveconteh.co.uk
   Design system: warm editorial minimal
   ========================================================================== */

:root {
  /* Colour */
  --bone:        #F7F4EF;
  --bone-deep:   #EFEAE1;
  --paper:       #FFFFFF;
  --ink:         #1A1917;
  --ink-soft:    #3A3733;
  --muted:       #6D675E;
  --line:        #E2DCD1;
  --accent:      #8A6A48;
  --accent-deep: #6B5238;
  --accent-tint: #F1EAE0;

  /* Type */
  --display: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  /* Scale */
  --step--1: clamp(0.82rem, 0.79rem + 0.15vw, 0.9rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --step-1:  clamp(1.2rem, 1.12rem + 0.4vw, 1.4rem);
  --step-2:  clamp(1.6rem, 1.4rem + 1vw, 2.1rem);
  --step-3:  clamp(2.1rem, 1.7rem + 2vw, 3.2rem);
  --step-4:  clamp(2.6rem, 1.9rem + 3.4vw, 4.8rem);

  /* Space */
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section: clamp(4.5rem, 9vw, 9rem);
  --maxw: 1240px;
  --measure: 62ch;

  --radius: 2px;
  --transition: 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* --------------------------------------------------------------- Reset -- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
body {
  margin: 0;
  background: var(--bone);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--step-0);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0; font-weight: 400; line-height: 1.12; letter-spacing: -0.01em; }
p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }
a { color: inherit; }
ul, ol { margin: 0 0 1.15em; padding-left: 1.15em; }
li { margin-bottom: 0.4em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--ink); color: var(--bone); padding: 0.75rem 1.25rem;
}
.skip-link:focus { left: 0; }

/* ------------------------------------------------------------- Layout --- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--narrow { max-width: 860px; }
.section { padding-block: var(--section); }
.section--tight { padding-block: clamp(3rem, 6vw, 5.5rem); }
.section--paper { background: var(--paper); }
.section--deep { background: var(--bone-deep); }
.section--ink { background: var(--ink); color: var(--bone); }
.section--ink .eyebrow { color: rgba(247, 244, 239, 0.62); }
.section--ink .lede, .section--ink .muted { color: rgba(247, 244, 239, 0.78); }

.grid { display: grid; gap: clamp(1.5rem, 3vw, 2.75rem); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); }
.split {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .split { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); }
  .split--even { grid-template-columns: 1fr 1fr; align-items: center; }
  .split--sticky > :first-child { position: sticky; top: 7rem; }
}

/* ---------------------------------------------------------- Typography -- */
.eyebrow {
  display: block;
  font-size: var(--step--1);
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.4rem;
}
.display   { font-family: var(--display); font-size: var(--step-4); font-weight: 300; letter-spacing: -0.02em; }
.headline  { font-family: var(--display); font-size: var(--step-3); font-weight: 300; letter-spacing: -0.015em; }
.subhead   { font-family: var(--display); font-size: var(--step-2); font-weight: 400; }
.title-sm  { font-family: var(--display); font-size: var(--step-1); font-weight: 500; letter-spacing: 0; }
.lede {
  font-size: var(--step-1);
  line-height: 1.6;
  font-weight: 300;
  color: var(--ink-soft);
  max-width: var(--measure);
}
.prose { max-width: var(--measure); }
.prose h2 { font-family: var(--display); font-size: var(--step-2); margin: 2.5em 0 0.6em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-family: var(--display); font-size: var(--step-1); font-weight: 500; margin: 2em 0 0.5em; }
.prose ul { padding-left: 1.1em; }
.prose ul li::marker { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: var(--step--1); line-height: 1.65; }
.center { text-align: center; margin-inline: auto; }

/* ------------------------------------------------------------ Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  padding: 0.95em 1.9em;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bone);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.btn:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn--light { background: var(--bone); color: var(--ink); border-color: var(--bone); }
.btn--light:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.4rem; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5em;
  font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase;
  text-decoration: none; color: var(--accent-deep);
  border-bottom: 1px solid transparent; padding-bottom: 2px;
  transition: border-color var(--transition), gap var(--transition);
}
.link-arrow:hover { border-color: var(--accent); gap: 0.85em; }

/* ------------------------------------------------------------- Header --- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247, 244, 239, 0.92);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem; min-height: 76px;
}
.wordmark {
  font-family: var(--display);
  font-size: 1.3rem; font-weight: 500; letter-spacing: 0.04em;
  text-decoration: none; line-height: 1.1;
}
.wordmark span {
  display: block; font-family: var(--body); font-size: 0.58rem;
  letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted);
  font-weight: 400; margin-top: 3px;
}
.nav { display: none; align-items: center; gap: clamp(1.1rem, 2vw, 2rem); }
@media (min-width: 1120px) { .nav { display: flex; } }
.nav a {
  font-size: var(--step--1); letter-spacing: 0.06em; text-decoration: none;
  color: var(--ink-soft); padding-block: 0.4rem;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }
.nav .btn { color: var(--bone); border-bottom: 1px solid var(--ink); }
.nav .btn:hover { color: #fff; }

.nav-toggle {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 0 10px;
  background: none; border: 0; cursor: pointer;
}
@media (min-width: 1120px) { .nav-toggle { display: none; } }
.nav-toggle span { display: block; height: 1px; background: var(--ink); transition: transform var(--transition), opacity var(--transition); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  display: none;
  background: var(--bone);
  border-bottom: 1px solid var(--line);
  padding: 1rem var(--gutter) 2rem;
}
.mobile-nav.is-open { display: block; }
@media (min-width: 1120px) { .mobile-nav { display: none !important; } }
.mobile-nav a {
  display: block; padding: 0.85rem 0; text-decoration: none;
  font-family: var(--display); font-size: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.mobile-nav .btn { display: inline-flex; margin-top: 1.6rem; border-bottom: 1px solid var(--ink); font-family: var(--body); font-size: var(--step--1); }

/* --------------------------------------------------------------- Hero --- */
.hero { position: relative; background: var(--bone); overflow: hidden; }
.hero__inner {
  display: grid; gap: clamp(2.5rem, 5vw, 4rem);
  padding-block: clamp(3.5rem, 8vw, 7rem) clamp(3.5rem, 7vw, 6rem);
  align-items: center;
}
@media (min-width: 950px) {
  .hero__inner { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); }
}
.hero__title { margin-bottom: 1.6rem; }
.hero__figure { position: relative; }
.hero__figure img, .hero__figure .ph { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.hero--page { border-bottom: 1px solid var(--line); }
.hero--page .hero__inner { grid-template-columns: 1fr; max-width: 900px; padding-block: clamp(3rem, 7vw, 5.5rem); }

/* ---------------------------------------------------------- Placeholder - */
.ph {
  position: relative;
  background:
    linear-gradient(135deg, rgba(138,106,72,0.10), rgba(138,106,72,0.02)),
    var(--bone-deep);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); text-align: center;
  font-size: var(--step--1); letter-spacing: 0.14em; text-transform: uppercase;
  padding: 1.5rem;
}
.ph--4x5 { aspect-ratio: 4 / 5; }
.ph--1x1 { aspect-ratio: 1 / 1; }
.ph--3x2 { aspect-ratio: 3 / 2; }
.ph--16x9 { aspect-ratio: 16 / 9; }

/* --------------------------------------------------------------- Cards -- */
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  display: flex; flex-direction: column;
  transition: border-color var(--transition), transform var(--transition);
}
.card:hover { border-color: var(--accent); }
.card__title { font-family: var(--display); font-size: var(--step-1); font-weight: 500; margin-bottom: 0.7rem; }
.card__body { color: var(--muted); font-size: var(--step-0); flex: 1; }
.card__foot { margin-top: 1.8rem; }
.card__more { margin-top: 1.4rem; font-size: var(--step--1); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-deep); }
a.card { text-decoration: none; }

.numbered { counter-reset: step; }
.numbered .step__n {
  font-family: var(--display); font-size: 2.4rem; color: var(--accent);
  line-height: 1; display: block; margin-bottom: 1rem; font-weight: 300;
}
.step { border-top: 1px solid var(--line); padding-top: 1.6rem; }

.stat { border-top: 1px solid var(--line); padding-top: 1.4rem; }
.stat__n { font-family: var(--display); font-size: var(--step-2); display: block; line-height: 1.1; }
.stat__l { font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-top: 0.5rem; display: block; }

/* ---------------------------------------------------------- Treatments -- */
.tlist { border-top: 1px solid var(--line); }
.tlist__item {
  display: grid; gap: 0.4rem 2rem; align-items: baseline;
  padding: clamp(1.6rem, 3vw, 2.2rem) 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding-inline var(--transition);
}
@media (min-width: 800px) {
  .tlist__item { grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr) auto; }
}
.tlist__item:hover { padding-inline: 0.6rem; }
.tlist__name { font-family: var(--display); font-size: var(--step-2); font-weight: 400; }
.tlist__desc { color: var(--muted); }
.tlist__go { color: var(--accent-deep); font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; white-space: nowrap; }

/* ------------------------------------------------------ Before / after -- */
.case { background: var(--paper); border: 1px solid var(--line); }
.case__media { position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: var(--bone-deep); user-select: none; touch-action: pan-y; }
.case__media img, .case__media .ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.case__after { clip-path: inset(0 0 0 50%); }
.case__handle {
  position: absolute; top: 0; bottom: 0; left: 50%; width: 2px;
  background: var(--paper); transform: translateX(-1px);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.08);
  pointer-events: none;
}
.case__handle::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  width: 40px; height: 40px; transform: translate(-50%, -50%);
  border-radius: 50%; background: var(--paper);
  box-shadow: 0 2px 14px rgba(26,25,23,0.22);
}
.case__handle::before {
  content: "\2039\00a0\00a0\203a"; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -52%); z-index: 2; color: var(--ink);
  font-size: 1.1rem; letter-spacing: 0.1em;
}
.case__range {
  position: absolute; inset: 0; width: 100%; margin: 0; opacity: 0; cursor: ew-resize;
}
.case__range:focus-visible { opacity: 1; }
.case__tag {
  position: absolute; bottom: 12px; z-index: 3;
  font-size: 0.62rem; letter-spacing: 0.16em; text-transform: uppercase;
  background: rgba(26,25,23,0.72); color: #fff; padding: 4px 10px; border-radius: 2px;
  pointer-events: none;
}
.case__tag--b { left: 12px; }
.case__tag--a { right: 12px; }
.case__meta { padding: 1.4rem clamp(1.2rem, 2vw, 1.8rem) 1.6rem; }
.case__meta h3 { font-family: var(--display); font-size: var(--step-1); font-weight: 500; margin-bottom: 0.35rem; }

/* -------------------------------------------------------------- Video --- */
.video {
  width: 100%; height: auto; display: block;
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.section--ink .video { border-color: rgba(247, 244, 239, 0.18); }
.video--portrait { max-width: 380px; margin-inline: auto; }

/* ------------------------------------------------------------ Location -- */
.loc { background: var(--paper); border: 1px solid var(--line); padding: clamp(1.6rem, 3vw, 2.2rem); }
.loc__name { font-family: var(--display); font-size: var(--step-1); font-weight: 500; }
.loc__days { font-size: var(--step--1); letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-deep); margin: 0.5rem 0 1.2rem; display: block; }
.loc address { font-style: normal; color: var(--muted); margin-bottom: 1.2rem; }
.loc a { text-decoration: none; border-bottom: 1px solid var(--line); }
.loc a:hover { border-bottom-color: var(--accent); }

/* ---------------------------------------------------------------- FAQ --- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; padding: 1.5rem 2.5rem 1.5rem 0;
  font-family: var(--display); font-size: var(--step-1); font-weight: 500;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 1.4rem; color: var(--accent); font-family: var(--body); font-weight: 300;
}
.faq details[open] summary::after { content: "\2013"; }
.faq details > div { padding-bottom: 1.7rem; max-width: var(--measure); color: var(--muted); }

/* --------------------------------------------------------------- Form --- */
.form { display: grid; gap: 1.5rem; }
.field { display: grid; gap: 0.5rem; }
.field label { font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; padding: 0.9rem 1rem;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); font-weight: 300;
  transition: border-color var(--transition);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field textarea { min-height: 150px; resize: vertical; }
.field--row { display: grid; gap: 1.5rem; }
@media (min-width: 700px) { .field--row { grid-template-columns: 1fr 1fr; } }
.consent { display: flex; gap: 0.8rem; align-items: flex-start; font-size: var(--step--1); color: var(--muted); }
.consent input { width: 18px; height: 18px; margin-top: 3px; flex: none; }
.hp { position: absolute; left: -9999px; }

/* ------------------------------------------------------------- Notice --- */
.notice {
  border-left: 2px solid var(--accent);
  background: var(--accent-tint);
  padding: 1.3rem 1.6rem;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ------------------------------------------------------------- Footer --- */
.site-footer { background: var(--ink); color: rgba(247,244,239,0.8); padding-block: clamp(3.5rem, 7vw, 6rem) 2.5rem; }
.site-footer a { color: rgba(247,244,239,0.8); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer h4 { font-size: var(--step--1); letter-spacing: 0.16em; text-transform: uppercase; color: rgba(247,244,239,0.5); margin-bottom: 1.2rem; font-weight: 400; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.6em; }
.footer__grid { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }
.footer__brand .wordmark { color: var(--bone); }
.footer__brand .wordmark span { color: rgba(247,244,239,0.5); }
.footer__legal {
  margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: 2rem;
  border-top: 1px solid rgba(247,244,239,0.14);
  display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between;
  font-size: var(--step--1); color: rgba(247,244,239,0.55);
}

/* ------------------------------------------------------------- Motion --- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 800ms ease, transform 800ms cubic-bezier(0.22, 1, 0.36, 1); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* -------------------------------------------------------------- Print --- */
@media print {
  .site-header, .mobile-nav, .site-footer, .btn-row { display: none; }
  body { background: #fff; }
}

/* ---- Testimonials ---- */
.quotes { columns: 2; column-gap: 1.5rem; }
@media (max-width: 760px) { .quotes { columns: 1; } }
.quote { break-inside: avoid; background: var(--paper); border: 1px solid var(--line); padding: 1.9rem 1.9rem 1.6rem; margin: 0 0 1.5rem; }
.section--paper .quote { background: var(--bone); }
.quote blockquote { margin: 0; }
.quote blockquote p { font-family: var(--display); font-size: 1.18rem; line-height: 1.55; font-weight: 400; }
.quote figcaption { margin-top: 1.1rem; font-size: var(--step--1); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-deep); }
.quote figcaption::before { content: "— "; }
.grid--2 .quote { margin: 0; height: 100%; }

/* ---- Gallery ---- */
.g__filters { display:flex; flex-wrap:wrap; gap:.6rem; margin-bottom:2.5rem; }
.g__filter { background:transparent; border:1px solid var(--line); color:var(--muted); padding:.55rem 1.1rem; font-size:var(--step--1); letter-spacing:.06em; cursor:pointer; transition:all .2s; }
.g__filter:hover { border-color:var(--accent); color:var(--accent-deep); }
.g__filter.is-on { background:var(--ink); border-color:var(--ink); color:var(--bone); }
.g__grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(min(100%,300px), 1fr)); gap:2rem 1.6rem; }
.g__item { margin:0; }
.g__item img { width:100%; height:auto; display:block; background:var(--bone-deep); }
.g__item figcaption { padding-top:.9rem; }
.g__item figcaption p { font-size:var(--step--1); line-height:1.55; color:var(--ink-soft); margin:.3rem 0 0; }
.g__quote { font-family:var(--display); font-style:italic; color:var(--accent-deep) !important; margin-top:.6rem !important; }