/* ============================================================
   House Martin of London — design system
   Smooth-loading techniques carried over from the
   Corbenta / Preux / Kelly Loeffler builds:
   - on-load "rise" entrance with cubic-bezier(0.22,1,0.36,1)
   - IntersectionObserver scroll reveals (staggered)
   - logo-veil preloader that fades on window load
   - condensing sticky header
   - blur-up image fade-in
   - full prefers-reduced-motion fallback
   ============================================================ */

:root{
  --font-display:"Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-sans:"Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:"IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  /* warm British heritage palette, keyed off the brown house mark */
  --bone:#F6F1E7;
  --paper:#FBF8F1;
  --cream:#EFE7D8;
  --ink:#241C14;          /* warm near-black */
  --ink-mid:#4A3D2E;
  --muted:#7C6B54;
  --brown:#5E4630;        /* brand brown */
  --brown-soft:#876547;
  --gold:#B0894E;
  --gold-deep:#977338;
  --line:rgba(36,28,20,0.12);
  --line-soft:rgba(36,28,20,0.07);

  /* dark band tokens */
  --dark:#241C14;
  --dark-2:#1A140E;
  --on-dark:rgba(246,241,231,0.94);
  --on-dark-soft:rgba(246,241,231,0.66);
  --on-dark-faint:rgba(246,241,231,0.42);
  --on-dark-line:rgba(246,241,231,0.16);

  --ease-out:cubic-bezier(0.22,1,0.36,1);
  --ease-in-out:cubic-bezier(0.76,0,0.24,1);
  --dur-ui:.32s;
  --dur-reveal:820ms;

  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;scroll-behavior:smooth;
}
body{
  font-family:var(--font-sans);line-height:1.65;color:var(--ink-mid);
  background:var(--bone);overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img,video{display:block;max-width:100%;}
::selection{background:rgba(176,137,78,0.24);color:var(--ink);}

h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);font-weight:500;line-height:1.06;letter-spacing:-0.01em;}

/* ---------- layout helpers ---------- */
.wrap{width:min(100%,var(--maxw));margin-inline:auto;padding-inline:clamp(1.25rem,5vw,2.75rem);}
.section{padding-block:clamp(4.5rem,9vw,8rem);position:relative;}
.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;
  color:var(--gold-deep);display:inline-flex;align-items:center;gap:.7rem;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);opacity:.7;}
.lede{font-size:1.12rem;color:var(--ink-mid);max-width:42ch;}

/* ---------- preloader veil ---------- */
.veil{
  position:fixed;inset:0;z-index:90;background:var(--bone);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .7s var(--ease-out),visibility .7s var(--ease-out);
}
.veil.is-done{opacity:0;visibility:hidden;}
.veil img{width:74px;height:auto;opacity:.0;animation:veilPulse 1.6s var(--ease-in-out) infinite;}
@keyframes veilPulse{0%,100%{opacity:.35;transform:translateY(0);}50%{opacity:.9;transform:translateY(-6px);}}

/* ---------- header ---------- */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:clamp(1rem,2.4vw,1.6rem) clamp(1.25rem,5vw,2.75rem);
  transition:background var(--dur-ui) var(--ease-out),
             padding var(--dur-ui) var(--ease-out),
             box-shadow var(--dur-ui) var(--ease-out),
             border-color var(--dur-ui) var(--ease-out);
  border-bottom:1px solid transparent;
}
.site-head.is-stuck{
  background:rgba(251,248,241,0.86);backdrop-filter:blur(12px);
  padding-top:.7rem;padding-bottom:.7rem;border-bottom-color:var(--line-soft);
  box-shadow:0 10px 40px -28px rgba(36,28,20,.5);
}
.head-brand{display:flex;align-items:center;gap:.7rem;}
.head-brand img{height:38px;width:auto;transition:height var(--dur-ui) var(--ease-out);}
.site-head.is-stuck .head-brand img{height:32px;}
.head-brand b{font-family:var(--font-display);font-size:1.12rem;font-weight:600;color:var(--ink);letter-spacing:.01em;}
.head-brand span{display:block;font-family:var(--font-mono);font-size:.56rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-top:2px;}
.nav{display:flex;align-items:center;gap:clamp(1.1rem,2.5vw,2.2rem);}
.nav a{font-size:.82rem;letter-spacing:.04em;color:var(--ink-mid);position:relative;transition:color var(--dur-ui) var(--ease-out);}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-5px;height:1px;background:var(--gold);transition:right var(--dur-ui) var(--ease-out);}
.nav a:hover{color:var(--ink);}
.nav a:hover::after{right:0;}
.nav .nav-cta{display:none;}
@media(max-width:760px){
  .nav .nav-link{display:none;}
  .nav .nav-cta{display:inline-flex;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  padding:.92rem 1.6rem;border-radius:2px;border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur-ui) var(--ease-out),background var(--dur-ui) var(--ease-out),
             color var(--dur-ui) var(--ease-out),border-color var(--dur-ui) var(--ease-out);
}
.btn .arr{transition:transform var(--dur-ui) var(--ease-out);}
.btn:hover .arr{transform:translateX(4px);}
.btn-solid{background:var(--brown);color:var(--bone);}
.btn-solid:hover{background:var(--ink);transform:translateY(-2px);}
.btn-ghost{border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brown);color:var(--brown);transform:translateY(-2px);}
.btn-gold{background:var(--gold);color:#241a09;}
.btn-gold:hover{background:var(--gold-deep);transform:translateY(-2px);}
.btn-on-dark{border-color:var(--on-dark-line);color:var(--on-dark);}
.btn-on-dark:hover{border-color:var(--gold);color:#fff;transform:translateY(-2px);}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;
  padding-top:6rem;
  background:
    radial-gradient(120% 90% at 78% 8%, rgba(176,137,78,0.10), transparent 55%),
    linear-gradient(180deg, var(--paper) 0%, var(--bone) 100%);
  overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem);align-items:center;width:100%;}
.hero-mark{width:62px;height:auto;margin-bottom:1.6rem;}
.hero h1{font-size:clamp(2.9rem,8vw,5.6rem);font-weight:600;color:var(--ink);margin-top:.6rem;}
.hero .role{font-family:var(--font-display);font-style:italic;font-size:clamp(1.3rem,3vw,1.9rem);color:var(--brown-soft);margin-top:.4rem;}
.hero .lede{margin-top:1.5rem;font-size:1.14rem;}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.2rem;}
.hero-figure{position:relative;}
.hero-figure .frame{position:relative;border-radius:3px;overflow:hidden;box-shadow:0 50px 90px -50px rgba(36,28,20,.65);}
.hero-figure .frame::after{content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.18);mix-blend-mode:overlay;}
.hero-figure img{width:100%;height:clamp(360px,58vh,560px);object-fit:cover;object-position:center 28%;}
.hero-figure .corgi{position:absolute;bottom:-30px;left:-38px;width:140px;height:auto;filter:drop-shadow(0 18px 26px rgba(36,28,20,.32));}
.hero-tag{position:absolute;top:1.1rem;left:1.1rem;background:rgba(36,28,20,.62);backdrop-filter:blur(6px);
  color:var(--on-dark);font-family:var(--font-mono);font-size:.64rem;letter-spacing:.18em;text-transform:uppercase;padding:.5rem .85rem;border-radius:2px;}
@media(max-width:880px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-figure{order:-1;max-width:440px;}
  .hero-figure .corgi{width:96px;left:-14px;bottom:-18px;}
}

/* ---------- intro / philosophy ---------- */
.intro{background:var(--paper);border-block:1px solid var(--line-soft);}
.intro-grid{display:grid;grid-template-columns:auto 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start;}
.intro h2{font-size:clamp(1.9rem,4vw,2.9rem);max-width:18ch;}
.intro .body p{margin-top:1.1rem;max-width:60ch;}
.intro .pull{font-family:var(--font-display);font-style:italic;font-size:clamp(1.3rem,2.4vw,1.7rem);color:var(--brown);line-height:1.3;margin-top:1.8rem;padding-left:1.2rem;border-left:2px solid var(--gold);}
@media(max-width:760px){.intro-grid{grid-template-columns:1fr;}}

/* ---------- services ---------- */
.svc-head{max-width:54ch;margin-bottom:clamp(2.2rem,5vw,3.5rem);}
.svc-head h2{font-size:clamp(2rem,4.5vw,3.1rem);margin-top:1rem;}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem;}
@media(max-width:760px){.svc-grid{grid-template-columns:1fr;}}
.svc-card{
  background:var(--paper);border:1px solid var(--line);border-radius:3px;
  padding:clamp(1.6rem,3vw,2.3rem);position:relative;overflow:hidden;
  transition:transform var(--dur-ui) var(--ease-out),box-shadow var(--dur-ui) var(--ease-out),border-color var(--dur-ui) var(--ease-out);
}
.svc-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gold);transform:scaleY(0);transform-origin:top;transition:transform .4s var(--ease-out);}
.svc-card:hover{transform:translateY(-4px);box-shadow:0 30px 60px -42px rgba(36,28,20,.5);border-color:transparent;}
.svc-card:hover::before{transform:scaleY(1);}
.svc-num{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;color:var(--gold-deep);}
.svc-card h3{font-size:1.5rem;margin:.7rem 0 .6rem;}
.svc-card p{font-size:.97rem;color:var(--ink-mid);}

/* coming-soon tag on a service card */
.svc-card .soon{display:inline-block;margin-left:.5rem;font-family:var(--font-mono);font-size:.56rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-deep);border:1px solid var(--line);border-radius:999px;padding:.22rem .55rem;vertical-align:middle;white-space:nowrap;}

/* ---------- book ---------- */
.book{background:var(--paper);border-block:1px solid var(--line-soft);}
.book-grid{display:grid;grid-template-columns:auto 1fr;gap:clamp(2rem,6vw,5rem);align-items:center;}
.book-figure{margin:0;}
.book-figure img{width:clamp(190px,24vw,290px);height:auto;border-radius:3px;box-shadow:0 40px 70px -40px rgba(36,28,20,.6);transform:rotate(-1.6deg);transition:transform .5s var(--ease-out),box-shadow .5s var(--ease-out);}
.book-figure a:hover img{transform:rotate(0) translateY(-5px);box-shadow:0 50px 80px -42px rgba(36,28,20,.66);}
.book h2{font-size:clamp(2rem,5vw,3.2rem);margin-top:.8rem;}
.book-sub{font-family:var(--font-display);font-style:italic;font-size:clamp(1.2rem,2.4vw,1.55rem);color:var(--brown-soft);margin-top:.35rem;}
.book .lede{margin-top:1.3rem;max-width:48ch;}
@media(max-width:760px){.book-grid{grid-template-columns:1fr;justify-items:start;}}

/* ---------- approach dark band ---------- */
.approach{background:linear-gradient(160deg,var(--dark) 0%,var(--dark-2) 100%);color:var(--on-dark);position:relative;overflow:hidden;}
.approach .mark-bg{position:absolute;right:-4%;top:50%;transform:translateY(-50%);width:min(46%,440px);opacity:.06;filter:grayscale(1) brightness(2.4);pointer-events:none;}
.approach .eyebrow{color:var(--gold);}
.approach .eyebrow::before{background:var(--gold);}
.approach h2{color:#fff;font-size:clamp(2rem,5vw,3.4rem);max-width:16ch;margin-top:1rem;}
.approach .lede{color:var(--on-dark-soft);margin-top:1.4rem;font-size:1.12rem;}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:clamp(2.4rem,5vw,3.6rem);position:relative;z-index:2;}
@media(max-width:760px){.values{grid-template-columns:1fr;}}
.value{border-top:1px solid var(--on-dark-line);padding-top:1.2rem;}
.value h4{color:#fff;font-size:1.45rem;font-style:italic;}
.value p{color:var(--on-dark-soft);font-size:.95rem;margin-top:.5rem;}

/* ---------- films ---------- */
.films-head{display:flex;justify-content:space-between;align-items:end;gap:1.5rem;flex-wrap:wrap;margin-bottom:clamp(2rem,4vw,3rem);}
.films-head h2{font-size:clamp(2rem,4.5vw,3.1rem);margin-top:1rem;}
.film-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;}
@media(max-width:880px){.film-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.film-grid{grid-template-columns:1fr;}}
.film{position:relative;border-radius:3px;overflow:hidden;background:var(--ink);aspect-ratio:16/10;cursor:pointer;}
.film img,.film video{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease-out),opacity .5s var(--ease-out);}
.film:hover img,.film:hover video{transform:scale(1.05);}
.film .glaze{position:absolute;inset:0;background:linear-gradient(180deg,rgba(36,28,20,0) 40%,rgba(26,20,14,.82) 100%);}
.film .meta{position:absolute;left:1rem;right:1rem;bottom:.9rem;display:flex;align-items:center;justify-content:space-between;gap:.6rem;z-index:2;}
.film .meta h4{color:#fff;font-size:1.25rem;}
.film .dur{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.12em;color:var(--on-dark-soft);}
.film .play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.92);z-index:2;
  width:60px;height:60px;border-radius:50%;background:rgba(246,241,231,.92);display:flex;align-items:center;justify-content:center;
  transition:transform var(--dur-ui) var(--ease-out),background var(--dur-ui) var(--ease-out);}
.film:hover .play{transform:translate(-50%,-50%) scale(1);background:var(--gold);}
.film .play svg{width:20px;height:20px;fill:var(--ink);margin-left:3px;}
.film iframe,.film video.playing{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:3;}

/* ---------- contact ---------- */
.contact{background:var(--cream);border-top:1px solid var(--line-soft);}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start;}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr;}}
.contact h2{font-size:clamp(2rem,4.5vw,3.2rem);margin-top:1rem;}
.contact .lede{margin-top:1.2rem;}
.contact .detail{margin-top:1.8rem;font-family:var(--font-mono);font-size:.82rem;letter-spacing:.04em;color:var(--ink-mid);}
.contact .detail a{color:var(--brown);border-bottom:1px solid var(--line);}
.contact .detail a:hover{color:var(--ink);}
.form{display:grid;gap:1rem;}
.field{display:grid;gap:.4rem;}
.field label{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);}
.field input,.field textarea{
  font-family:var(--font-sans);font-size:1rem;color:var(--ink);background:var(--paper);
  border:1px solid var(--line);border-radius:2px;padding:.85rem .95rem;width:100%;
  transition:border-color var(--dur-ui) var(--ease-out),box-shadow var(--dur-ui) var(--ease-out);
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brown);box-shadow:0 0 0 3px rgba(176,137,78,.16);}
.field textarea{min-height:130px;resize:vertical;}
.form .note{font-size:.78rem;color:var(--muted);}
.hp{position:absolute!important;left:-9999px!important;top:auto;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none;}
.form-status{font-size:.9rem;min-height:1.25em;margin-top:.2rem;}
.form-status.is-ok{color:var(--brown);}
.form-status.is-err{color:#9A2A2A;}
.form button[disabled]{opacity:.6;cursor:default;}

/* ---------- footer ---------- */
.site-foot{background:var(--dark-2);color:var(--on-dark-soft);}
.foot-grid{display:flex;justify-content:space-between;align-items:center;gap:1.5rem;flex-wrap:wrap;padding-block:2.4rem;}
.foot-brand{display:flex;align-items:center;gap:.7rem;}
.foot-brand img{height:40px;filter:brightness(0) invert(1);opacity:.9;}
.foot-brand b{font-family:var(--font-display);color:#fff;font-size:1.1rem;}
.site-foot .tiny{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;color:var(--on-dark-faint);}
.site-foot a:hover{color:var(--gold);}

/* ============================================================
   SMOOTH-LOADING: scroll reveals + on-load rise
   Hidden states are gated behind .js so the page is fully
   visible if JavaScript is disabled, fails, or is throttled.
   ============================================================ */
.js [data-reveal]{opacity:0;transform:translateY(26px);
  transition:opacity var(--dur-reveal) var(--ease-out),transform var(--dur-reveal) var(--ease-out);
  transition-delay:var(--reveal-delay,0ms);will-change:opacity,transform;}
.js [data-reveal].is-in{opacity:1;transform:none;}

.js [data-rise]{opacity:0;transform:translateY(20px);
  transition:opacity var(--dur-reveal) var(--ease-out),transform var(--dur-reveal) var(--ease-out);
  transition-delay:var(--reveal-delay,0ms);will-change:opacity,transform;}
.js [data-rise].is-in{opacity:1;transform:none;}

.img-fade{opacity:0;filter:blur(8px);transition:opacity .8s var(--ease-out),filter .8s var(--ease-out);}
.img-fade.is-loaded{opacity:1;filter:blur(0);}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .js [data-reveal],.js [data-rise]{opacity:1;transform:none;transition:none;}
  .img-fade{opacity:1;filter:none;}
  .veil{display:none;}
  .veil img{animation:none;}
}

/* ---------- back link (sub page) ---------- */
.subhero{padding-top:8rem;padding-bottom:0;background:linear-gradient(180deg,var(--paper),var(--bone));}
.backlink{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);display:inline-flex;gap:.5rem;align-items:center;}
.backlink:hover{color:var(--brown);}
.bio{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start;}
@media(max-width:880px){.bio{grid-template-columns:1fr;}}
.bio-figure{position:sticky;top:6rem;}
.bio-figure .frame{border-radius:3px;overflow:hidden;box-shadow:0 40px 80px -50px rgba(36,28,20,.6);}
.bio-figure img{width:100%;height:clamp(360px,52vh,560px);object-fit:cover;object-position:center 24%;}
.bio-figure figcaption{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;color:var(--muted);margin-top:.8rem;text-transform:uppercase;}
.bio h1{font-size:clamp(2.4rem,6vw,4rem);font-weight:600;margin-top:.6rem;}
.bio .prose p{margin-top:1.15rem;font-size:1.05rem;color:var(--ink-mid);max-width:62ch;}
.bio .prose p:first-of-type{font-size:1.18rem;color:var(--ink);}