/* Solvenne, cold precise.
   The inverse of Belverne on every axis: dark ground carrying pale type, a tracked
   wide grotesque instead of a high contrast serif, and mono doing most of the
   structural work. */

:root{
  --ground:#0D1620;
  --ground-2:#111C27;
  --paper:#DCE3E8;
  --paper-60:#93A2AE;
  --paper-35:#5E707E;
  --rule:#213040;
  --live:#7FB0D8;          /* state marker only, never inside a headline */

  --display:"Archivo","Helvetica Neue",Arial,sans-serif;
  --body:"Inter","Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --wrap:min(93%,1680px);
  --sec-y:clamp(5rem,11vw,10.5rem);
  --nav-h:5rem;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ground);color:var(--paper);
  font-family:var(--body);
  font-size:clamp(1rem,.4vw + .93rem,1.075rem);
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}

.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:400;background:var(--paper);color:var(--ground);padding:.6rem 1rem}

.wrap{width:var(--wrap);margin-inline:auto}

/* Display is wide, light and tracked. Mono carries every piece of structure.
   Nothing sits in the 20 to 40px range (rule 311). */
.display{
  font-family:var(--display);
  font-variation-settings:'wdth' 118,'wght' 200;
  font-size:clamp(2.6rem,4.6vw,4.4rem);
  line-height:1.06;letter-spacing:.005em;text-transform:uppercase;
  margin:1rem 0 0;max-width:20ch;
}
.plate{
  font-family:var(--mono);font-size:.6875rem;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--paper-35);
  margin:0;font-feature-settings:'tnum' 1;
}
.plate .sep{color:var(--rule);padding:0 .4em}
.lede{max-width:56ch;color:var(--paper-60);margin:1.5rem 0 0}
.head{max-width:none}

.nav{position:absolute;inset:var(--banner-h) 0 auto;z-index:100;height:var(--nav-h)}
.nav-inner{
  width:var(--wrap);margin-inline:auto;height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:2rem;
}
.brand{
  font-family:var(--display);font-variation-settings:'wdth' 118,'wght' 300;
  font-size:1.1rem;letter-spacing:.22em;text-transform:uppercase;text-decoration:none;
}
.nav-links{display:flex;gap:clamp(1.25rem,2.2vw,2.5rem)}
.nav-links a{
  font-family:var(--mono);font-size:.6875rem;letter-spacing:.16em;text-transform:uppercase;
  text-decoration:none;color:var(--paper-60);padding:.5rem 0;
  border-bottom:1px solid transparent;transition:color .25s,border-color .25s;
}
.nav-links a:hover{color:var(--paper);border-color:var(--paper)}

.burger{display:none;position:relative;z-index:220;width:44px;height:44px;background:none;border:0;cursor:pointer;padding:0}
.burger span{display:block;height:1px;width:26px;margin:5px auto;background:var(--paper)}

.drawer{
  position:fixed;inset:0;z-index:210;background:var(--ground);
  display:flex;flex-direction:column;justify-content:center;padding:clamp(1.25rem,4vw,3rem);
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s ease,visibility .3s;
}
.drawer.open{opacity:1;visibility:visible;pointer-events:auto}
.drawer-close{
  position:absolute;top:1.35rem;right:clamp(1.25rem,4vw,3rem);min-height:44px;
  background:none;border:0;cursor:pointer;color:var(--paper);
  font-family:var(--mono);font-size:.6875rem;letter-spacing:.16em;text-transform:uppercase;
}
.drawer-links{display:flex;flex-direction:column;gap:.5rem}
.drawer-links a{
  font-family:var(--display);font-variation-settings:'wdth' 112,'wght' 200;
  font-size:clamp(2rem,8.5vw,2.75rem);line-height:1.3;letter-spacing:.02em;
  text-transform:uppercase;text-decoration:none;min-height:44px;
}

/* Hero: one viewport exactly (rules 337, 339). */
.hero{position:relative;height:calc(100vh - var(--banner-h));height:calc(100svh - var(--banner-h));overflow:hidden;display:flex;align-items:flex-end}
.hero-media{position:absolute;inset:0;background:url("images/hero.png") center 55%/cover no-repeat var(--ground-2)}
/* The photograph is already dark, so this is a floor under the type rather than a
   uniform dimmer, and it is anchored to the bottom where the text sits. */
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(13,22,32,.94) 0%,rgba(13,22,32,.78) 26%,rgba(13,22,32,.28) 58%,rgba(13,22,32,.35) 100%);
}
.hero-inner{
  position:relative;z-index:2;width:var(--wrap);margin-inline:auto;
  padding-bottom:clamp(2.5rem,6vh,5rem);
  display:grid;grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);
  gap:clamp(1.5rem,4vw,5rem);align-items:end;
}
.hero h1{
  font-family:var(--display);font-variation-settings:'wdth' 118,'wght' 100;
  font-size:clamp(2.7rem,6.4vw,6rem);
  line-height:1.02;letter-spacing:.01em;text-transform:uppercase;
  margin:1.1rem 0 0;max-width:13ch;text-wrap:balance;
}
.hero .plate{color:#B7C4CE}
.hero-sub{max-width:46ch;color:var(--paper-60);margin:1.6rem 0 0}
.hero-rail{border-top:1px solid var(--rule);padding-top:1.1rem}
.hero-rail-note{color:var(--paper-60);font-size:.95rem;margin:.7rem 0 1rem;max-width:32ch}
.link{
  font-family:var(--mono);font-size:.6875rem;letter-spacing:.16em;text-transform:uppercase;
  text-decoration:none;color:var(--paper);border-bottom:1px solid var(--live);padding-bottom:.3rem;
}

.btn{
  display:inline-flex;align-items:center;min-height:48px;padding:0 1.6rem;
  background:var(--paper);color:var(--ground);text-decoration:none;
  font-family:var(--mono);font-size:.6875rem;letter-spacing:.16em;text-transform:uppercase;
  transition:background .25s;
}
.btn:hover{background:#fff}
.btn-quiet{background:none;color:var(--paper);box-shadow:inset 0 0 0 1px var(--rule)}
.btn-quiet:hover{background:none;box-shadow:inset 0 0 0 1px var(--paper-35)}

.section{padding-block:var(--sec-y)}
.band{background:var(--ground-2)}

/* Horizontal rail. scroll-padding must match the inline padding or the snap engine
   eats the inset on load (rule 307). */
.rail{
  margin-top:clamp(2.5rem,5vw,4rem);
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,clamp(19rem,34vw,34rem));
  gap:clamp(1rem,2vw,2rem);
  overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;
  padding-inline:max(3.5vw,calc((100vw - var(--wrap)) / 2));
  scroll-padding-inline:max(3.5vw,calc((100vw - var(--wrap)) / 2));
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.proj{scroll-snap-align:start}
.proj-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.proj .plate{margin-top:1.1rem}
.proj h3{
  font-family:var(--display);font-variation-settings:'wdth' 112,'wght' 200;
  font-size:clamp(1.9rem,2.6vw,2.6rem);line-height:1.08;letter-spacing:.01em;
  text-transform:uppercase;margin:.6rem 0 .8rem;
}
.proj p:last-child{color:var(--paper-60);margin:0;font-size:.98rem}
.rail-hint{margin:1.5rem auto 0;color:var(--paper-35)}

.method{
  list-style:none;margin:clamp(2.5rem,5vw,4rem) 0 0;margin-inline:auto;padding:0;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(1.5rem,2.6vw,3rem);
}
.method li{border-top:1px solid var(--rule);padding-top:1.15rem}
.method h3{
  font-family:var(--body);font-weight:500;font-size:1.1rem;line-height:1.4;
  margin:.9rem 0 .6rem;
}
.method p:last-child{color:var(--paper-60);margin:0;font-size:.98rem}

.practice{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(2rem,5vw,6rem);align-items:start}
.practice-body p{color:var(--paper-60);margin:0 0 1.2rem;max-width:54ch}
.practice-body p:last-child{margin-bottom:0}

.contact{background:var(--ground-2)}
.contact-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2.25rem}

.foot{border-top:1px solid var(--rule);padding-block:clamp(3rem,6vw,5rem)}
.foot-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(2rem,5vw,6rem)}
.brand-foot{
  font-family:var(--display);font-variation-settings:'wdth' 118,'wght' 300;
  font-size:1.1rem;letter-spacing:.22em;text-transform:uppercase;margin:0;
}
.foot-note{color:var(--paper-60);font-size:.92rem;margin:.6rem 0 0;max-width:54ch}

.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto !important}
}

/* Layout responds to width. Interaction mode is a separate query (rule 114). */
@media (max-width:1180px){
  .method{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  :root{--nav-h:4.5rem}
  .nav-links{display:none}
  .burger{display:block}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:2rem}
  .hero-rail{display:none}
  .practice{grid-template-columns:minmax(0,1fr)}
  .foot-inner{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .method{grid-template-columns:minmax(0,1fr)}
  .rail{grid-auto-columns:minmax(0,82vw)}
  .hero-veil{background:linear-gradient(to top,rgba(13,22,32,.96) 0%,rgba(13,22,32,.88) 40%,rgba(13,22,32,.4) 78%,rgba(13,22,32,.45) 100%)}
}
@media (max-width:480px){
  .btn{width:100%;justify-content:center}
}
@media (pointer:coarse){
  .nav-links a,.drawer-links a{min-height:44px;display:inline-flex;align-items:center}
}

/* Concept banner. Sits in normal flow, so every hero height below subtracts
   --banner-h and the first fold still ends exactly at the viewport bottom
   (rule 339). */
:root{ --banner-h: 34px; }
.concept-banner{
  min-height:var(--banner-h); display:flex; align-items:center; justify-content:center;
  padding:0 1rem; text-align:center;
  background:#0A121A; color:#93A2AE;
  font-family:var(--mono, ui-monospace, Menlo, monospace);
  font-size:.625rem; letter-spacing:.1em; text-transform:uppercase; line-height:1.2;
}
@media (max-width:640px){ :root{ --banner-h: 44px; } .concept-banner{ font-size:.5625rem; letter-spacing:.06em; } }