/* ==========================================================================
   OHRAHMA INNOVATIONS LLP — Stylesheet
   Monochrome, editorial, architectural technology-studio design system.
   ========================================================================== */

:root{
  --black:#060b18;
  --near-black:#0b1327;
  --panel:#101b30;
  --surface:#36454F;
  --white:#edf6ff;
  --off-white:#dfeafc;
  --gray:#8aa0c2;
  --gray-light:#dfe8f8;
  --line:rgba(154,200,255,0.18);
  --line-dark:rgba(135,166,218,0.18);
  --accent:#75e5ff;
  --accent-strong:#7c8cff;
  --accent-soft:#9d7bff;
  --accent-warm:#ff8ad8;
  --glow:rgba(117,229,255,0.26);

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --container-pad: clamp(24px, 5vw, 96px);
  --ease: cubic-bezier(.16,.84,.44,1);
  --dur-fast: 0.3s;
  --dur-med: 0.6s;
  --dur-slow: 1s;

  --radius-sm: 2px;
  --radius-md: 6px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
}

body{
  margin:0;
  background:
    radial-gradient(circle at top left, rgba(124,140,255,0.12), transparent 30%),
    radial-gradient(circle at bottom right, rgba(255,138,216,0.1), transparent 30%),
    var(--black);
  color:var(--white);
  font-family:var(--font-body);
  font-weight:400;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  cursor:default;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
button{ font-family:inherit; }
input, select, textarea{ font-family:inherit; }

.container-fluid{
  width:100%;
  max-width:1440px;
  margin:0 auto;
  padding-left:var(--container-pad);
  padding-right:var(--container-pad);
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:500;
  letter-spacing:-0.02em;
  margin:0;
}

::selection{ background:linear-gradient(135deg, var(--accent), var(--accent-soft)); color:var(--black); }

.skip-link{
  position:absolute; left:-9999px; top:0;
  background:var(--white); color:var(--black);
  padding:12px 20px; z-index:9999;
  font-family:var(--font-mono); font-size:0.8rem;
}
.skip-link:focus{ left:16px; top:16px; }

:focus-visible{
  outline:2px solid currentColor;
  outline-offset:3px;
}

/* ==========================================================================
   Grain / texture overlay
   ========================================================================== */
.grain-overlay{
  position:fixed; inset:0; z-index:2; pointer-events:none;
  opacity:0.035; mix-blend-mode:overlay;
  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");
}

/* ==========================================================================
   Scroll progress bar
   ========================================================================== */
.scroll-progress{
  position:fixed; top:0; left:0; right:0; height:2px; z-index:1001;
  background:transparent;
}
.scroll-progress-bar{
  height:100%; width:0%;
  background:linear-gradient(90deg, var(--accent), var(--accent-soft), var(--accent-warm));
  box-shadow:0 0 20px rgba(117,229,255,0.55);
  transition:width 0.1s linear;
}

/* ==========================================================================
   Custom cursor
   ========================================================================== */
.cursor-dot, .cursor-ring{
  position:fixed; top:0; left:0; z-index:1000;
  pointer-events:none;
  border-radius:50%;
  transform:translate(-50%,-50%);
  transition:opacity 0.2s ease, background 0.3s ease, border-color 0.3s ease;
}
.cursor-dot{
  width:6px; height:6px;
  background:linear-gradient(135deg, var(--accent), var(--accent-soft));
  box-shadow:0 0 16px rgba(117,229,255,0.8);
}
.cursor-ring{
  width:36px; height:36px;
  border:1px solid rgba(117,229,255,0.6);
  background:rgba(117,229,255,0.06);
  transition:width 0.25s var(--ease), height 0.25s var(--ease), border-color 0.25s ease, background 0.25s ease, transform 0.15s var(--ease), opacity 0.2s ease;
}
.cursor-ring.cursor-invert{
  background:var(--black);
  border-color:var(--black);
}
.cursor-ring.cursor-hover{
  width:64px; height:64px;
}
.cursor-dot.cursor-on-dark, .cursor-ring.cursor-on-dark{
  background:var(--white);
}
.cursor-ring.cursor-on-dark{
  border-color:rgba(255,255,255,0.4);
}
@media (hover:none), (pointer:coarse){
  .cursor-dot, .cursor-ring{ display:none; }
}
body.using-custom-cursor{ cursor:none; }
body.using-custom-cursor a, body.using-custom-cursor button{ cursor:none; }

/* ==========================================================================
   Reveal animations
   ========================================================================== */
.reveal-up{
  opacity:0;
  transform:translateY(28px);
  transition:opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay:var(--d, 0s);
}
.reveal-up.is-visible{
  opacity:1;
  transform:translateY(0);
}
@media (prefers-reduced-motion: reduce){
  .reveal-up{ opacity:1; transform:none; transition:none; }
}

.reveal-line{
  display:block;
  overflow:hidden;
}
.reveal-line span{
  display:block;
  transform:translateY(110%);
  transition:transform 1s var(--ease);
  transition-delay:0.15s;
}
.hero.is-loaded .reveal-line span{ transform:translateY(0); }
@media (prefers-reduced-motion: reduce){
  .reveal-line span{ transform:none; transition:none; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-solid, .btn-ghost, .btn-line{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:16px 26px;
  font-family:var(--font-body);
  font-size:0.92rem;
  font-weight:500;
  border-radius:100px;
  border:1px solid var(--black);
  white-space:nowrap;
  transition:transform 0.35s var(--ease), background 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.btn-solid{
  background:linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 46%, var(--accent-soft) 100%);
  color:var(--black);
  box-shadow:0 14px 36px rgba(124,140,255,0.32);
}
.btn-solid:hover{ transform:translateY(-2px); }
.btn-solid i, .btn-ghost i, .btn-line i{
  transition:transform 0.3s var(--ease);
  font-size:0.95rem;
}
.btn-solid:hover i, .btn-ghost:hover i, .btn-line:hover i{ transform:translate(3px,-3px); }

.btn-ghost{
  background:transparent;
  color:var(--black);
}
.btn-ghost:hover{ background:var(--black); color:var(--white); }

.btn-solid--light{
  background:var(--white); color:var(--black); border-color:var(--white);
}
.btn-ghost--light{
  border-color:rgba(255,255,255,0.5); color:var(--white);
}
.btn-ghost--light:hover{ background:var(--white); color:var(--black); }

.btn-line{
  padding:10px 18px;
  font-size:0.82rem;
  border-color:var(--black);
}
.btn-line:hover{ background:var(--black); color:var(--white); }
.btn-line--light{
  border-color:rgba(255,255,255,0.4); color:var(--white);
}
.btn-line--light:hover{ background:var(--white); color:var(--black); }

/* ==========================================================================
   Navigation
   ========================================================================== */
.site-nav{
  position:fixed; top:0; left:0; right:0; z-index:900;
  padding:22px 0;
  transition:padding 0.4s var(--ease), background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
  border-bottom:1px solid transparent;
}
.site-nav.scrolled{
  padding:14px 0;
  background:rgba(6,11,24,0.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-nav.scrolled .nav-links a[href="#about"],
.site-nav.scrolled .nav-links a[href="#contact"],
.site-nav.scrolled > .nav-inner > .btn-line,
.site-nav.scrolled .mobile-menu .btn-line{
  display:none !important;
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.brand-mark{
  display:flex; flex-direction:column; line-height:1;
  color:var(--white);
}
.brand-name{
  font-family:var(--font-display);
  font-weight:600;
  font-size:1.15rem;
  letter-spacing:0.02em;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:0.55rem;
  letter-spacing:0.14em;
  color:rgba(255,255,255,0.55);
  margin-top:3px;
}
.nav-links{
  gap:36px;
  align-items:center;
}
.nav-links a{
  color:rgba(255,255,255,0.75);
  font-size:0.92rem;
  position:relative;
  padding:4px 0;
  transition:color 0.3s ease;
}
.nav-links a::after{
  content:'';
  position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--white);
  transition:right 0.35s var(--ease);
}
.nav-links a:hover{ color:var(--white); }
.nav-links a:hover::after{ right:0; }

.site-nav .btn-line{
  border-color:rgba(255,255,255,0.4); color:var(--white);
}
.site-nav .btn-line:hover{ background:var(--white); color:var(--black); }

.menu-toggle{
  width:40px; height:40px;
  border:1px solid rgba(255,255,255,0.3);
  border-radius:50%;
  background:transparent;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:4px;
  position:relative;
  z-index:901;
}
.menu-toggle span{
  width:16px; height:1px; background:var(--white);
  transition:transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-5px) rotate(-45deg); }

.mobile-menu{
  position:fixed; inset:0; top:0;
  background:var(--black);
  display:flex; flex-direction:column; justify-content:center; gap:28px;
  padding:32px var(--container-pad);
  transform:translateY(-100%);
  transition:transform 0.5s var(--ease);
  z-index:850;
  visibility:hidden;
  pointer-events:none;
}
.mobile-menu.open{
  transform:translateY(0);
  visibility:visible;
  pointer-events:auto;
}
.mobile-menu nav{ display:flex; flex-direction:column; gap:22px; margin-bottom:10px; }
.mobile-menu nav a{
  color:var(--white);
  font-family:var(--font-display);
  font-size:2rem;
}
.mobile-menu .btn-line{ align-self:flex-start; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  min-height:100vh;
  background:
    radial-gradient(circle at 20% 10%, rgba(117,229,255,0.18), transparent 22%),
    radial-gradient(circle at 80% 20%, rgba(157,123,255,0.22), transparent 26%),
    linear-gradient(180deg, var(--black) 0%, #091426 100%);
  color:var(--white);
  display:flex;
  align-items:center;
  overflow:hidden;
  padding-top:120px;
  padding-bottom:80px;
}
#heroCanvas{
  position:absolute; inset:0; width:100%; height:100%;
  opacity:0.55;
}
.hero-grid-bg{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 40%, black 40%, transparent 90%);
}
.hero-inner{
  position:relative; z-index:2;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:0.78rem;
  letter-spacing:0.16em;
  color:rgba(255,255,255,0.55);
  margin-bottom:28px;
}
.hero-title{
  font-size:clamp(2.6rem, 6.4vw, 6rem);
  font-weight:500;
  line-height:1.04;
  max-width:16ch;
}
.hero-sub{
  margin-top:32px;
  max-width:640px;
  font-size:clamp(1.02rem, 1.6vw, 1.2rem);
  color:rgba(255,255,255,0.68);
  line-height:1.6;
}
.hero-cta{
  display:flex; flex-wrap:wrap; gap:18px;
  margin-top:44px;
}
.hero-cta .btn-solid{ background:linear-gradient(135deg, var(--accent), var(--accent-strong)); color:var(--black); border-color:transparent; }
.hero-cta .btn-ghost{ color:var(--white); border-color:rgba(117,229,255,0.4); }
.hero-cta .btn-ghost:hover{ background:rgba(117,229,255,0.12); color:var(--white); }

.hero-meta{
  margin-top:64px;
  display:flex; flex-wrap:wrap; gap:20px;
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.1em;
  color:rgba(255,255,255,0.4);
}
.hero-meta span:not(:last-child)::after{
  content:'/'; margin-left:20px; color:rgba(255,255,255,0.2);
}

.scroll-cue{
  position:absolute; bottom:36px; left:50%; transform:translateX(-50%);
  width:1px; height:56px;
  background:rgba(255,255,255,0.2);
  z-index:2;
}
.scroll-cue span{
  position:absolute; top:0; left:-2.5px;
  width:6px; height:6px; border-radius:50%;
  background:var(--white);
  animation:cueMove 2.2s ease-in-out infinite;
}
@keyframes cueMove{
  0%{ top:0; opacity:0; }
  15%{ opacity:1; }
  85%{ opacity:1; }
  100%{ top:100%; opacity:0; }
}
@media (prefers-reduced-motion: reduce){
  .scroll-cue span{ animation:none; top:50%; opacity:1; }
}

/* ==========================================================================
   Marquee
   ========================================================================== */
.marquee-strip{
  background:linear-gradient(90deg, rgba(13,22,40,0.96), rgba(17,27,48,0.96));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  padding:20px 0;
  box-shadow:inset 0 0 0 1px rgba(117,229,255,0.08);
}
.marquee-track{
  display:flex;
  width:max-content;
  animation:marqueeScroll 32s linear infinite;
}
@media (prefers-reduced-motion: reduce){
  .marquee-track{ animation-duration:90s; }
}
.marquee-group{
  display:flex; align-items:center;
  flex-shrink:0;
}
.marquee-group span{
  font-family:var(--font-mono);
  font-size:0.82rem;
  letter-spacing:0.1em;
  padding:0 20px;
  white-space:nowrap;
  color:var(--off-white);
}
.marquee-group .dot{
  opacity:0.35;
  padding:0;
}
@keyframes marqueeScroll{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}

/* ==========================================================================
   Section head / shared
   ========================================================================== */
section{
  padding:clamp(80px, 10vw, 160px) 0;
  position:relative;
}
.section-label{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:0.75rem;
  letter-spacing:0.12em;
  color:var(--gray);
  margin-bottom:20px;
}
.section-head{
  max-width:760px;
  margin-bottom:64px;
}
.section-head h2{
  font-size:clamp(2rem, 4.2vw, 3.4rem);
  line-height:1.08;
}
.section-head p{
  margin-top:22px;
  font-size:1.05rem;
  color:var(--gray);
  max-width:56ch;
  line-height:1.65;
}
.section-head--light .section-label{ color:rgba(255,255,255,0.5); }
.section-head--light p{ color:rgba(255,255,255,0.6); }

/* ==========================================================================
   Services
   ========================================================================== */
.services{ background:var(--surface); color:var(--white); }
.service-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:1px;
  background:var(--line-dark);
  border:1px solid var(--line-dark);
}
.service-card{
  background:var(--surface);
  padding:40px 32px;
  display:flex; flex-direction:column;
  min-height:420px;
  position:relative;
  transition:background 0.4s ease, color 0.4s ease, transform 0.35s var(--ease), box-shadow 0.35s ease;
}
.service-card-top{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:36px;
}
.service-index{
  font-family:var(--font-mono);
  font-size:0.8rem;
  color:var(--gray);
}
.service-icon{
  font-size:1.3rem;
  color:var(--gray);
}
.service-card h3{
  font-size:1.4rem;
  margin-bottom:14px;
}
.service-card p{
  color:var(--gray);
  font-size:0.94rem;
  line-height:1.62;
  flex-grow:0;
}
.tag-list{
  display:flex; flex-wrap:wrap; gap:8px;
  margin-top:24px;
  margin-bottom:28px;
}
.tag-list li{
  font-family:var(--font-mono);
  font-size:0.68rem;
  letter-spacing:0.04em;
  padding:6px 12px;
  border:1px solid var(--line-dark);
  border-radius:100px;
  color:var(--gray);
}
.card-link{
  margin-top:auto;
  display:inline-flex; align-items:center; gap:8px;
  font-size:0.9rem; font-weight:500;
  padding-top:16px;
  border-top:1px solid var(--line-dark);
}
.card-link i{ transition:transform 0.3s var(--ease); font-size:0.85rem; }
.service-card:hover{
  background:linear-gradient(180deg, rgba(8,14,25,0.98), rgba(14,18,38,0.98)); color:var(--white);
  transform:translateY(-4px);
  box-shadow:0 20px 40px rgba(8,12,23,0.18);
}
.service-card:hover .service-index,
.service-card:hover .service-icon,
.service-card:hover p{ color:rgba(255,255,255,0.6); }
.service-card:hover .tag-list li{ border-color:rgba(255,255,255,0.25); color:rgba(255,255,255,0.75); }
.service-card:hover .card-link{ border-top-color:rgba(255,255,255,0.25); }
.service-card:hover .card-link i{ transform:translateX(4px); }

.service-card--feature{
  background:linear-gradient(135deg, rgba(11,19,39,1), rgba(17,27,48,1)); color:var(--white);
}
.service-card--feature .service-index,
.service-card--feature .service-icon{ color:rgba(255,255,255,0.55); }
.service-card--feature p{ color:rgba(255,255,255,0.65); }
.service-card--feature .tag-list li{ border-color:rgba(255,255,255,0.22); color:rgba(255,255,255,0.75); }
.service-card--feature .card-link{ border-top-color:rgba(255,255,255,0.22); }
.service-card--feature:hover{
  background:var(--surface); color:var(--white);
}
.service-card--feature:hover .service-index,
.service-card--feature:hover .service-icon,
.service-card--feature:hover p{ color:var(--gray); }
.service-card--feature:hover .tag-list li{ border-color:var(--line-dark); color:var(--gray); }
.service-card--feature:hover .card-link{ border-top-color:var(--line-dark); }

.feature-badge{
  position:absolute; top:40px; right:32px;
  font-family:var(--font-mono);
  font-size:0.6rem;
  letter-spacing:0.1em;
  padding:6px 10px;
  border:1px solid rgba(117,229,255,0.5);
  border-radius:100px;
  color:var(--accent);
  background:rgba(117,229,255,0.08);
  box-shadow:0 0 20px rgba(117,229,255,0.1);
}

@media (max-width:1200px){
  .service-grid{ grid-template-columns:repeat(2, 1fr); }
}
@media (max-width:640px){
  .service-grid{ grid-template-columns:1fr; }
  .service-card{ min-height:auto; padding:32px 24px; }
}

/* ==========================================================================
   AI Feature section
   ========================================================================== */
.ai-feature{
  background:var(--black);
  color:var(--white);
}
.agent-workflow{
  display:flex; align-items:center; flex-wrap:wrap;
  gap:0;
  margin-bottom:100px;
  padding:32px;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
}
.workflow-step{
  display:flex; flex-direction:column; align-items:center; gap:10px;
  padding:14px 18px;
  flex:1 1 100px;
  text-align:center;
}
.wf-num{
  font-family:var(--font-mono);
  font-size:0.66rem;
  color:rgba(255,255,255,0.4);
}
.wf-label{
  font-size:0.92rem;
  font-weight:500;
  letter-spacing:0.02em;
}
.workflow-connector{
  width:32px; height:1px;
  background:rgba(255,255,255,0.25);
  flex-shrink:0;
  position:relative;
  overflow:hidden;
}
.workflow-connector::after{
  content:'';
  position:absolute; top:0; left:-100%; width:100%; height:100%;
  background:var(--white);
  animation:flowPulse 3.5s linear infinite;
}
@keyframes flowPulse{
  0%{ left:-100%; }
  60%,100%{ left:100%; }
}
@media (prefers-reduced-motion: reduce){
  .workflow-connector::after{ animation:none; left:100%; }
}
@media (max-width:900px){
  .agent-workflow{ flex-direction:column; align-items:stretch; }
  .workflow-connector{ width:1px; height:24px; margin:0 auto; }
}

.agent-diagram{
  max-width:820px; margin:0 auto 56px;
}
.agent-svg{ width:100%; height:auto; }
.agent-lines line{
  stroke:rgba(255,255,255,0.18);
  stroke-width:1;
}
.agent-nodes .node circle{
  fill:var(--near-black);
  stroke:rgba(255,255,255,0.35);
  stroke-width:1;
}
.agent-nodes .node text{
  fill:rgba(255,255,255,0.7);
  font-family:var(--font-mono);
  font-size:11px;
  text-anchor:middle;
}
.agent-core .core-ring{
  fill:none;
  stroke:rgba(255,255,255,0.3);
  stroke-width:1;
  animation:corePulse 3s ease-in-out infinite;
  transform-origin:center;
}
@keyframes corePulse{
  0%,100%{ r:64; opacity:0.6; }
  50%{ r:72; opacity:0.15; }
}
@media (prefers-reduced-motion: reduce){
  .agent-core .core-ring{ animation:none; }
}
.agent-core .core-fill{
  fill:linear-gradient(135deg, var(--accent), var(--accent-soft));
}
.agent-core text{
  fill:var(--white);
  font-family:var(--font-display);
  font-weight:700;
  font-size:13px;
  text-anchor:middle;
  letter-spacing:0.02em;
}

.agent-footnote{
  max-width:620px; margin:0 auto;
  text-align:center;
  color:rgba(255,255,255,0.6);
  font-size:1rem;
  line-height:1.7;
}

/* ==========================================================================
   Use cases
   ========================================================================== */
.use-cases{ background:var(--surface); color:var(--white); }
.usecase-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:var(--line-dark);
  border:1px solid var(--line-dark);
}
.usecase-card{
  background:var(--surface);
  padding:32px;
  display:flex; align-items:center; justify-content:space-between;
  gap:16px;
  font-size:1.02rem;
  font-weight:500;
  transition:background 0.4s ease, color 0.4s ease, padding 0.35s var(--ease);
  cursor:pointer;
}
.usecase-card i{
  font-size:1rem;
  transition:transform 0.35s var(--ease);
  flex-shrink:0;
}
.usecase-card:hover{
  background:var(--black); color:var(--white);
  padding-left:40px;
}
.usecase-card:hover i{ transform:translate(4px,-4px); }

@media (max-width:900px){
  .usecase-grid{ grid-template-columns:repeat(2, 1fr); }
}
@media (max-width:560px){
  .usecase-grid{ grid-template-columns:1fr; }
  .usecase-card:hover{ padding-left:32px; }
}

/* ==========================================================================
   Approach timeline
   ========================================================================== */
.approach{ background:var(--surface); color:var(--white); }
.timeline{
  position:relative;
  display:flex;
  flex-direction:column;
}
.timeline-line{
  position:absolute; left:36px; top:8px; bottom:8px;
  width:1px;
  background:var(--line-dark);
}
.timeline-item{
  display:flex; gap:32px;
  padding:32px 0;
  border-top:1px solid var(--line-dark);
  position:relative;
}
.timeline-item:last-child{ border-bottom:1px solid var(--line-dark); }
.timeline-num{
  font-family:var(--font-mono);
  font-size:0.85rem;
  color:var(--gray);
  width:40px; flex-shrink:0;
  padding-top:4px;
}
.timeline-body h3{
  font-size:1.3rem;
  margin-bottom:10px;
}
.timeline-body p{
  color:var(--gray);
  max-width:52ch;
  line-height:1.6;
}

/* ==========================================================================
   About
   ========================================================================== */
.about{ background:var(--black); color:var(--white); }
.about-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:80px;
  align-items:start;
}
.about-text .section-label{ color:rgba(255,255,255,0.5); }
.about-text h2{
  font-size:clamp(2rem, 4vw, 3.2rem);
  line-height:1.1;
  margin-bottom:26px;
}
.about-text p{
  color:rgba(255,255,255,0.65);
  font-size:1.05rem;
  line-height:1.7;
  max-width:52ch;
}
.about-stats{
  display:flex; flex-direction:column; gap:36px;
  border-left:1px solid var(--line);
  padding-left:40px;
}
.stat-block{ display:flex; flex-direction:column; gap:6px; }
.stat-num{
  font-family:var(--font-display);
  font-size:3.4rem;
  font-weight:600;
  line-height:1;
}
.stat-num--infinity{ font-size:3.8rem; }
.stat-label{
  font-family:var(--font-mono);
  font-size:0.75rem;
  letter-spacing:0.08em;
  color:rgba(255,255,255,0.45);
}
@media (max-width:900px){
  .about-grid{ grid-template-columns:1fr; gap:48px; }
  .about-stats{ border-left:none; padding-left:0; border-top:1px solid var(--line); padding-top:32px; flex-direction:row; flex-wrap:wrap; gap:40px; }
}

/* ==========================================================================
   Technology wall
   ========================================================================== */
.tech-wall{
  background:var(--near-black);
  color:var(--white);
  border-top:1px solid var(--line);
}
.tech-columns{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:48px;
}
.tech-col h3{
  font-size:1.05rem;
  margin-bottom:22px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.tag-list--outline li{
  border-color:rgba(255,255,255,0.18);
  color:rgba(255,255,255,0.68);
  background:transparent;
}
@media (max-width:900px){
  .tech-columns{ grid-template-columns:repeat(2, 1fr); gap:36px; }
}
@media (max-width:560px){
  .tech-columns{ grid-template-columns:1fr; }
}

/* ==========================================================================
   CTA section
   ========================================================================== */
.cta-section{
  background:var(--black);
  color:var(--white);
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-grid-anim{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size:48px 48px;
  animation:gridDrift 18s linear infinite;
  mask-image:radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 80%);
}
@keyframes gridDrift{
  from{ background-position:0 0; }
  to{ background-position:48px 48px; }
}
@media (prefers-reduced-motion: reduce){
  .cta-grid-anim{ animation:none; }
}
.cta-content{
  position:relative; z-index:1;
  max-width:720px; margin:0 auto;
}
.cta-content h2{
  font-size:clamp(2.2rem, 5vw, 4rem);
  line-height:1.08;
  margin-bottom:24px;
}
.cta-content p{
  color:rgba(255,255,255,0.65);
  font-size:1.1rem;
  margin-bottom:44px;
}
.cta-buttons{
  display:flex; flex-wrap:wrap; justify-content:center; gap:18px;
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact{ background:var(--surface); color:var(--white); }
.contact-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:72px;
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.form-field{
  margin-bottom:26px;
  display:flex; flex-direction:column;
}
.form-field label{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.08em;
  color:var(--gray);
  margin-bottom:10px;
}
.form-field input,
.form-field select,
.form-field textarea{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--line-dark);
  padding:10px 2px;
  font-size:1rem;
  color:var(--white);
  transition:border-color 0.3s ease;
  border-radius:0;
}
.form-field select{
  cursor:pointer;
  background:var(--surface);
}
.form-field select option{
  background:var(--surface);
  color:var(--white);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-bottom-color:var(--white);
}
.form-field textarea{ resize:vertical; min-height:110px; }
.field-error{
  display:none;
  font-size:0.78rem;
  color:var(--white);
  margin-top:8px;
  font-family:var(--font-mono);
}
.form-field.invalid input,
.form-field.invalid select,
.form-field.invalid textarea{
  border-bottom-color:var(--white);
  border-bottom-width:2px;
}
.form-field.invalid .field-error{ display:block; }

.contact-form{ position:relative; }
#submitBtn{ margin-top:8px; }

.form-success{
  display:none;
  margin-top:28px;
  padding:28px;
  border:1px solid var(--line-dark);
  border-radius:var(--radius-md);
  text-align:center;
}
.form-success.show{ display:block; animation:successIn 0.6s var(--ease); }
@keyframes successIn{
  from{ opacity:0; transform:translateY(12px); }
  to{ opacity:1; transform:translateY(0); }
}
.form-success i{
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:50%;
  border:1px solid var(--white);
  margin-bottom:16px;
  font-size:1.1rem;
}
.form-success p{ font-weight:500; margin-bottom:6px; }
.form-success span{ color:var(--gray); font-size:0.9rem; }

.contact-info{
  display:flex; flex-direction:column; gap:36px;
  padding-top:8px;
}
.info-block{ display:flex; flex-direction:column; gap:8px; }
.info-label{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.08em;
  color:var(--gray);
}
.info-block a{ 
  font-size:1.15rem;
  border-bottom:1px solid var(--line-dark);
  width:fit-content;
  transition:border-color 0.3s ease;
}
.info-block a:hover{ border-color:var(--white); }
.info-block p{ font-size:1rem; color:var(--white); line-height:1.6; }

@media (max-width:900px){
  .contact-grid{ grid-template-columns:1fr; gap:48px; }
  .form-row{ grid-template-columns:1fr; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{
  background:var(--black);
  color:var(--white);
  padding:72px 0 32px;
}
.footer-top{
  display:flex; justify-content:space-between; align-items:flex-start;
  flex-wrap:wrap; gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid var(--line);
}
.footer-brand{ display:flex; flex-direction:column; }
.footer-brand .brand-name{ font-size:1.4rem; }
.footer-brand .brand-sub{ margin-top:6px; margin-bottom:18px; }
.footer-brand p{ color:rgba(255,255,255,0.5); font-size:0.92rem; }
.footer-links{
  display:flex; gap:32px; flex-wrap:wrap;
}
.footer-links a{
  color:rgba(255,255,255,0.7);
  font-size:0.92rem;
  transition:color 0.3s ease;
}
.footer-links a:hover{ color:var(--white); }
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  padding-top:28px;
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.04em;
  color:rgba(255,255,255,0.4);
}

/* ==========================================================================
   Magnetic buttons (JS-driven transform hook)
   ========================================================================== */
.magnetic{ will-change:transform; }

/* ==========================================================================
   Responsive base adjustments
   ========================================================================== */
@media (max-width:768px){
  section{ padding:64px 0; }
  .section-head{ margin-bottom:44px; }
  .hero{ padding-top:110px; }
  .hero-cta{ flex-direction:column; align-items:flex-start; }
}