/* ---------- tokens ---------- */
:root{
  --ink: #15161A;
  --ink-soft: #4A4B52;
  --ink-soft-dark: #B7B8C0;
  --paper: #F6F4EF;
  --paper-dim: #EDE9E0;
  --paper-line: #DDD7C9;
  --accent: #FF4B26;
  --accent-deep: #C22E0C;
  --accent-ink: #FFF3EE;
  --card: #FFFFFF;
  --meta: #6E6F73;
  --panel-dark: #22232A;
  --panel-dark-line: #33343A;

  --font-display: "Space Grotesk", "Neue Montreal", Inter, Helvetica Neue, Arial, sans-serif;
  --font-body: Inter, "Neue Montreal", Helvetica Neue, Arial, sans-serif;

  --measure: 68ch;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --gutter: clamp(20px, 5vw, 64px);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  /* Reveal content must never depend on motion (or JS) to become visible */
  .reveal{ opacity: 1 !important; transform: none !important; }
}

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1,h2,h3,p{ overflow-wrap: break-word; }

::selection{ background: var(--accent); color: var(--accent-ink); }

::-webkit-scrollbar{ width: 12px; height: 12px; }
::-webkit-scrollbar-track{ background: var(--paper); }
::-webkit-scrollbar-thumb{ background: var(--ink); border-radius: 999px; border: 3px solid var(--paper); }
html{ scrollbar-color: var(--ink) var(--paper); scrollbar-width: thin; }

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

.skip-link{
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--ink); color: var(--paper); padding: 12px 18px; border-radius: 0 0 6px 0;
}
.skip-link:focus{ left: 0; }

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.06;
  margin: 0;
}
h1{ font-size: clamp(2.6rem, 5.4vw, 4.6rem); font-weight: 700; }
h2{ font-size: clamp(2rem, 3.4vw, 3rem); }
h3{ font-size: 1.15rem; font-weight: 600; margin-bottom: 0.4em; }
p{ margin: 0 0 1em; color: var(--ink-soft); max-width: var(--measure); }
strong{ color: var(--ink); font-weight: 600; }

.tabular{ font-variant-numeric: tabular-nums; }

/* ---------- layout helpers ---------- */
.section-inner{
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section{ padding: clamp(72px, 11vw, 140px) 0; }
.section > .section-inner > h2{ margin-bottom: 0.9em; }

.grid-12{ display:grid; grid-template-columns: repeat(12, minmax(0,1fr)); gap: 24px; }
.col-6{ grid-column: span 6; min-width: 0; }
.col-8-12{ grid-column: 8 / 13; min-width: 0; }

@media (max-width: 860px){
  .grid-12{ display:block; }
  .col-6{ grid-column: auto; }
  .col-8-12{ grid-column: auto; margin-top: 28px; }
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 15px 28px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration:none;
  border-radius: 8px;
  transition: transform 0.35s var(--ease-out-expo), background-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}
.btn-primary{
  background: var(--accent-deep);
  color: var(--accent-ink);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 24px -8px rgba(194,46,12,0.55); }
.btn-primary:active{ transform: translateY(0); }
.btn-ghost{
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink);
}
.btn-ghost:hover{ background: var(--ink); color: var(--paper); transform: translateY(-2px); }
.btn-lg{ padding: 19px 36px; font-size: 1.05rem; }

/* ---------- nav ---------- */
.nav{
  position: sticky; top:0; z-index: 100;
  background: rgba(246,244,239,0.82);
  backdrop-filter: blur(10px) saturate(1.2);
  -webkit-backdrop-filter: blur(10px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.nav.scrolled{ border-bottom-color: var(--paper-line); box-shadow: 0 8px 24px -20px rgba(21,22,26,0.4); }
.nav-inner{
  max-width: 1240px; margin: 0 auto; padding: 18px var(--gutter);
  display:flex; align-items:center; justify-content:space-between;
}
.nav-mark{
  display:flex; align-items:center; gap:10px;
  font-family: var(--font-display); font-weight: 700; font-size: 1.15rem;
  color: var(--ink); text-decoration:none;
}
.nav-links{ display:flex; align-items:center; gap: 34px; }
.nav-links a{ color: var(--ink); text-decoration:none; font-weight: 500; font-size: 0.96rem; position:relative; }
.nav-links a:not(.nav-cta)::after{
  content:""; position:absolute; left:0; right:0; bottom:-6px; height:2px; background: var(--accent);
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease-out-expo);
}
.nav-links a:not(.nav-cta):hover::after{ transform: scaleX(1); }
.nav-cta{
  background: var(--ink); color: var(--paper) !important; padding: 10px 20px; border-radius: 7px;
  transition: background-color 0.25s ease, transform 0.3s var(--ease-out-expo);
}
.nav-cta:hover{ background: var(--accent-deep); transform: translateY(-1px); }
.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; padding:14px 12px; cursor:pointer; }
.nav-toggle span{ width:22px; height:2px; background: var(--ink); transition: transform 0.3s ease, opacity 0.3s ease; }
.mobile-menu{ display:none; }

@media (max-width: 860px){
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; }
  .mobile-menu{
    display:flex; flex-direction:column; gap: 2px;
    max-height:0; overflow:hidden; background: var(--paper);
    border-top: 1px solid transparent; transition: max-height 0.35s var(--ease-out-expo), border-color 0.3s;
  }
  .mobile-menu.open{ max-height: 320px; border-top-color: var(--paper-line); }
  .mobile-menu a{
    color: var(--ink); text-decoration:none; padding: 16px var(--gutter); font-weight:500;
    border-bottom: 1px solid var(--paper-line);
  }
  .mobile-menu .nav-cta{ margin: 14px var(--gutter); text-align:center; border-radius:7px; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- hero ---------- */
.hero{ position: relative; padding: clamp(56px, 9vw, 96px) 0 clamp(40px,6vw,72px); overflow:hidden; }
.hero-inner{
  max-width: 1240px; margin: 0 auto; padding: 0 var(--gutter);
  display:grid; grid-template-columns: minmax(0,1.05fr) minmax(0,0.95fr); gap: clamp(24px,5vw,60px); align-items:center;
}
.hero-copy{ min-width: 0; }
.hero-copy h1{ margin-bottom: 0.5em; }
.hero-sub{ font-size: 1.2rem; max-width: 46ch; margin-bottom: 2em; }
.hero-cta{ display:flex; gap:16px; flex-wrap:wrap; }
.hero-diagram{ aspect-ratio: 1/1; width:100%; min-width: 0; }
.hero-scroll{
  position:absolute; left:50%; bottom: 18px; transform:translateX(-50%);
  width: 22px; height: 34px; border: 1.5px solid var(--ink-soft); border-radius: 12px; opacity:0.5;
}
.hero-scroll span{
  position:absolute; top:6px; left:50%; width:3px; height:7px; background: var(--ink);
  border-radius: 2px; transform: translateX(-50%);
  animation: scrollDot 1.8s var(--ease-out-expo) infinite;
}
@keyframes scrollDot{ 0%{ transform: translate(-50%,0); opacity:1;} 70%{ opacity:0;} 100%{ transform: translate(-50%,10px); opacity:0;} }

@media (max-width: 860px){
  .hero-inner{ grid-template-columns: minmax(0,1fr); }
  .hero-diagram{ order:-1; max-width: 320px; margin: 0 auto 12px; }
  .hero-scroll{ display:none; }
}

/* ---------- reveal-on-scroll ---------- */
.reveal{ opacity:0; transform: translateY(22px); transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo); }
.reveal.in{ opacity:1; transform: none; }
.hero .reveal{ transition-delay: 0.05s; }
.hero-copy h1.reveal{ transition-delay: 0s; }
.hero-sub.reveal{ transition-delay: 0.12s; }
.hero-cta.reveal{ transition-delay: 0.22s; }
.hero-diagram.reveal{ transition-delay: 0.1s; }

/* ---------- positioning ---------- */
.positioning{ background: var(--paper-dim); border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line); }
.positioning-copy p{ font-size: 1.08rem; }

/* ---------- services / bento ---------- */
.bento{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  grid-auto-rows: minmax(180px, auto);
  gap: 16px;
}
.bento-item{
  background: var(--card);
  border: 1px solid var(--paper-line);
  border-radius: 14px;
  padding: 30px 28px;
  display:flex; flex-direction:column; justify-content:flex-end;
  transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s var(--ease-out-expo);
}
.bento-item:hover{ transform: translateY(-4px); box-shadow: 0 20px 40px -24px rgba(21,22,26,0.28); }
.bento-index{ font-family: var(--font-display); font-weight: 600; font-size: 1.22rem; letter-spacing:-0.01em; margin-bottom: 0.35em; }
.bento-item p{ margin:0; font-size: 0.98rem; }
.bento-lg{ grid-column: span 2; }
.bento-dark{ background: var(--panel-dark); border-color: var(--panel-dark-line); color: var(--paper); }
.bento-dark .bento-index{ color: var(--paper); }
.bento-dark p{ color: var(--ink-soft-dark); }
.bento-accent{ background: var(--accent-deep); border-color: var(--accent-deep); color: var(--accent-ink); }
.bento-accent .bento-index{ color: var(--accent-ink); }
.bento-accent p{ color: var(--accent-ink); }

@media (max-width: 860px){
  .bento{ grid-template-columns: minmax(0,1fr) minmax(0,1fr); }
  .bento-lg{ grid-column: span 2; }
}
@media (max-width: 560px){
  .bento{ grid-template-columns: minmax(0,1fr); }
  .bento-lg{ grid-column: span 1; }
}

/* ---------- process ---------- */
.process-list{
  list-style:none; margin: 0 0 2em; padding:0;
  display:grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 28px;
  position:relative;
}
.process-list::before{
  content:""; position:absolute; top:14px; left: 4%; right: 4%; height:1px; background: var(--paper-line);
}
.process-list li{ position:relative; padding-top: 44px; }
.process-num{
  position:absolute; top:0; left:0; font-family: var(--font-display); font-weight:600;
  font-size:0.95rem; color: var(--accent-deep); background: var(--paper); padding-right: 10px;
}
.process-list h3{ margin-bottom:0.3em; }
.process-list p{ font-size:0.95rem; margin:0; }
.process-note{ font-size:1.08rem; color: var(--ink); font-weight:500; max-width: 62ch; }

@media (max-width: 860px){
  .process-list{ grid-template-columns: minmax(0,1fr) minmax(0,1fr); }
  .process-list::before{ display:none; }
}
@media (max-width: 560px){ .process-list{ grid-template-columns: minmax(0,1fr); } }

/* ---------- why ---------- */
.why{ background: var(--ink); color: var(--paper); }
.why h2{ color: var(--paper); max-width: 20ch; }
.why-list{ margin-top: 2.4em; }
.why-row{
  display:grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 40px;
  padding: 28px 0; border-top: 1px solid var(--panel-dark-line);
}
.why-row:last-child{ border-bottom: 1px solid var(--panel-dark-line); }
.why-row h3{ color: var(--paper); }
.why-row p{ color: #ACAEB8; margin:0; }
@media (max-width: 700px){ .why-row{ grid-template-columns: minmax(0,1fr); gap:8px; } }

/* ---------- scenarios ---------- */
.scenario-list{ margin-top: 1.6em; display:flex; flex-direction:column; }
.scenario{
  font-family: var(--font-display); font-weight:500;
  font-size: clamp(1.15rem, 2.4vw, 1.6rem); color: var(--ink);
  padding: 18px 0; border-bottom: 1px solid var(--paper-line); margin:0; max-width: none;
}
.scenario:first-child{ border-top: 1px solid var(--paper-line); }
.scenario-close{ margin-top: 1.6em; font-size: 1.1rem; }

/* ---------- work / case studies ---------- */
.work-disclaimer{ font-size:0.85rem; color: var(--ink-soft); font-style: italic; margin-bottom: 2.2em; }
.case{
  display:grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(24px,5vw,64px); align-items:center;
  padding: 48px 0; border-top: 1px solid var(--paper-line);
}
.case:last-child{ border-bottom: 1px solid var(--paper-line); }
.case-reverse .case-visual{ order:2; }
.case-visual{ border-radius: 14px; overflow:hidden; box-shadow: 0 24px 48px -28px rgba(21,22,26,0.35); }
.case-visual svg{ display:block; width:100%; height:auto; }
.case-sector{ display:inline-block; font-weight:600; color: var(--accent-deep); font-size:0.92rem; margin-bottom:0.6em; }
.case-problem{ font-size:0.98rem; }
.case-solution{ font-size:1.05rem; color: var(--ink); }
.case-result{ font-family: var(--font-display); font-size:1.7rem; margin: 0.4em 0 0.6em; }
.case-result strong{ color: var(--accent-deep); }
.case-stack{ font-size:0.82rem; color:var(--meta); margin:0; }

@media (max-width: 800px){
  .case, .case-reverse{ grid-template-columns: minmax(0,1fr); }
  .case-reverse .case-visual{ order:0; }
}

/* ---------- tech ---------- */
.tech{ background: var(--paper-dim); border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line); }
.tech h2{ max-width: 20ch; }
.tech-list{
  list-style:none; margin: 1.6em 0 0; padding:0;
  display:flex; flex-wrap:wrap; gap: 12px 14px;
}
.tech-list li{
  font-size:0.9rem; font-weight:500; color: var(--ink-soft);
  border: 1px solid var(--paper-line); border-radius: 999px; padding: 8px 16px;
  background: var(--card);
}

/* ---------- final cta ---------- */
.final-cta{ background: var(--ink); color: var(--paper); position:relative; overflow:hidden; }
.final-cta-inner{ text-align:center; max-width: 760px; }
.final-cta h2{ color: var(--paper); margin: 0 auto 0.5em; }
.final-cta p{ color: var(--ink-soft-dark); margin: 0 auto 1.8em; }
.final-cta .btn-lg{ margin-bottom: 1.2em; }
.cta-micro{ font-size:0.88rem; color:#8C8D96; margin:0; }

/* ---------- footer ---------- */
.footer{ background: var(--paper); padding-top: 56px; }
.footer-inner{
  display:flex; flex-wrap:wrap; gap: 28px; justify-content:space-between; align-items:center;
  padding-bottom: 36px; border-bottom: 1px solid var(--paper-line);
}
.footer-brand{ display:flex; align-items:center; gap:10px; }
.footer-brand svg rect:first-child{ fill: var(--ink); }
.footer-name{ display:block; font-family: var(--font-display); font-weight:700; }
.footer-domain{ display:block; font-size:0.85rem; color: var(--ink-soft); }
.footer-nav{ display:flex; gap: 22px; }
.footer-nav a{ color: var(--ink-soft); text-decoration:none; font-size:0.92rem; padding: 12px 0; display:inline-block; }
.footer-nav a:hover{ color: var(--accent-deep); }
.footer-bottom{ padding: 22px 0 32px; font-size:0.82rem; color: var(--ink-soft); }

@media (max-width: 560px){
  .footer-inner{ flex-direction:column; align-items:flex-start; }
  .footer-bottom{ text-align:center; }
}

/* ---------- grain (subtle browser-surface signature) ---------- */
.grain{
  position: fixed; inset:0; pointer-events:none; z-index: 500; opacity: 0.025; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}