/* TechNexus — design tokens */
:root {
  --ink: #0C1433;
  --ink-2: #16204A;
  --ink-3: #26315F;
  --indigo: #3D3BF3;
  --indigo-dk: #2A28C9;
  --iris: #B7C0FF;
  --amber: #FFB547;
  --mint: #4FD69C;
  --paper: #F4F6FB;
  --white: #FFFFFF;
  --text: #1A2140;
  --slate: #5A6278;
  --line: #DCE1EC;
  --display: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;
  --body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --wrap: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--body); font-size: 17px; line-height: 1.65; color: var(--text); background: var(--white); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
h1, h2, h3 { font-family: var(--display); color: var(--ink); line-height: 1.08; letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(2.5rem, 5.6vw, 4.6rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.75rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; line-height: 1.25; }
p { max-width: 68ch; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 100; background: var(--white); padding: 8px 14px; }
.hp { display: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; border-radius: 999px; font: 600 1rem/1 var(--body); text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: background-color .15s, border-color .15s, color .15s; }
.btn-primary { background: var(--indigo); color: var(--white); }
.btn-primary:hover { background: var(--indigo-dk); }
.btn-ghost { border-color: rgba(183, 192, 255, .45); color: var(--white); }
.btn-ghost:hover { border-color: var(--iris); background: rgba(183, 192, 255, .08); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--ink); border-bottom: 1px solid rgba(255, 255, 255, .07); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--white); font: 700 1.35rem/1 var(--display); letter-spacing: -0.02em; }
.mark { width: 32px; height: 32px; fill: var(--iris); stroke: var(--iris); stroke-width: 3; stroke-linecap: round; }
.mark circle:nth-of-type(3) { fill: var(--white); }
.mark circle { stroke-width: 0; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a:not(.btn) { color: rgba(255, 255, 255, .78); text-decoration: none; font-weight: 500; font-size: .97rem; }
.nav-links a:not(.btn):hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-links a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--indigo); text-decoration-thickness: 2px; text-underline-offset: 8px; }
.nav-cta .btn { min-height: 42px; padding: 0 20px; font-size: .95rem; }
.menu-toggle { display: none; width: 44px; height: 44px; background: none; border: 0; cursor: pointer; position: relative; }
.menu-toggle span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--white); transition: transform .2s; }
.menu-toggle span:first-child { top: 17px; } .menu-toggle span:last-child { top: 25px; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* Hero */
.hero { background: var(--ink); color: rgba(255, 255, 255, .8); padding: 96px 0 104px; position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; right: -180px; top: -220px; width: 640px; height: 640px; border-radius: 50%; border: 1px solid rgba(183, 192, 255, .12); box-shadow: 0 0 0 90px rgba(183, 192, 255, .025), 0 0 0 180px rgba(183, 192, 255, .02); pointer-events: none; }
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { color: var(--white); max-width: 15ch; }
.hero .lead { font-size: 1.2rem; margin-top: 26px; max-width: 54ch; color: rgba(255, 255, 255, .78); }
.hero .actions, .hero-sm .actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 28px; font-size: .95rem; color: rgba(183, 192, 255, .85); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.hero-sm { padding: 72px 0 80px; }
.hero-sm h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); max-width: 20ch; }
.hero-full { min-height: 62vh; display: flex; align-items: center; }
.crumbs { display: flex; gap: 10px; font-size: .9rem; margin-bottom: 22px; color: rgba(183, 192, 255, .8); flex-wrap: wrap; }
.crumbs a { color: rgba(255, 255, 255, .8); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }

/* Agent run panel: the one memorable element */
.run { background: var(--ink-2); border: 1px solid var(--ink-3); border-radius: 18px; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .6); overflow: hidden; font-family: var(--mono); }
.run-bar { display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-bottom: 1px solid var(--ink-3); }
.dots { display: inline-flex; gap: 6px; }
.dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--ink-3); display: block; }
.run-title { color: rgba(255, 255, 255, .85); font-size: .85rem; }
.run-steps { padding: 18px 18px 6px; display: grid; gap: 4px; }
.run-step { display: grid; grid-template-columns: 92px 1fr; gap: 12px; align-items: baseline; padding: 9px 10px; border-radius: 8px; font-size: .86rem; line-height: 1.45; color: rgba(255, 255, 255, .88); }
.run-step .who { font-size: .74rem; padding: 2px 8px; border-radius: 6px; justify-self: start; }
.run-step[data-kind="agent"] .who { color: var(--iris); background: rgba(183, 192, 255, .12); }
.run-step[data-kind="ci"] .who { color: var(--mint); background: rgba(79, 214, 156, .12); }
.run-step[data-kind="human"] .who { color: var(--amber); background: rgba(255, 181, 71, .12); }
.run.animate .run-step { opacity: .18; transition: opacity .35s, background-color .35s; }
.run.animate .run-step.active { opacity: 1; background: rgba(255, 255, 255, .05); }
.run.animate .run-step.done { opacity: 1; }
.run figcaption { font-family: var(--body); font-size: .9rem; color: rgba(183, 192, 255, .9); padding: 14px 28px 20px; border-top: 1px solid var(--ink-3); margin-top: 12px; }
.run.animate figcaption { opacity: .3; transition: opacity .5s; }
.run.animate.finished figcaption { opacity: 1; }

/* Generic sections */
section:not(.hero) { padding: 104px 0; }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; margin-bottom: 52px; }
.section-sub { color: var(--slate); font-size: 1.08rem; margin-top: 14px; }
.section-head .section-sub { margin-top: 0; }

/* Home services: bento */
.services-home { background: var(--paper); }
.bento { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-areas: "ai ai staff" "s3 s4 staff" "s5 s6 s6"; gap: 16px; }
.tile { display: flex; flex-direction: column; gap: 10px; padding: 30px; border-radius: 14px; background: var(--white); border: 1px solid var(--line); text-decoration: none; color: var(--text); transition: border-color .15s; }
.tile:hover { border-color: var(--indigo); }
.tile:nth-child(3) { grid-area: s3; } .tile:nth-child(4) { grid-area: s4; } .tile:nth-child(5) { grid-area: s5; } .tile:nth-child(6) { grid-area: s6; }
.tile p { color: var(--slate); }
.tile .more { margin-top: auto; padding-top: 14px; font-weight: 600; color: var(--indigo); }
.tile-ai, .tile-staff { border-radius: 22px; border: 0; padding: 40px; }
.tile-ai { grid-area: ai; background: var(--ink); min-height: 300px; }
.tile-ai h3, .tile-staff h3 { color: var(--white); font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.tile-ai p { color: rgba(255, 255, 255, .75); font-size: 1.1rem; max-width: 42ch; }
.tile-ai .more { color: var(--iris); }
.tile-staff { grid-area: staff; background: var(--indigo); }
.tile-staff p { color: rgba(255, 255, 255, .85); font-size: 1.05rem; }
.tile-staff .more { color: var(--white); }
.tile-ai:hover { background: var(--ink-2); } .tile-staff:hover { background: var(--indigo-dk); }

/* Process steps (real sequence) */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 48px; counter-reset: s; }
.steps li { border-top: 2px solid var(--ink); padding-top: 22px; }
.step-n { display: block; font: 800 2.6rem/1 var(--display); color: var(--indigo); margin-bottom: 14px; letter-spacing: -0.03em; }
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--slate); font-size: .98rem; }

/* Reasons */
.reasons { background: var(--ink); }
.reasons h2 { color: var(--white); }
.reasons .section-sub { color: rgba(255, 255, 255, .7); }
.reasons-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; }
.reason-list { display: grid; grid-template-columns: 1fr 1fr; gap: 36px 40px; }
.reason-list h3 { color: var(--white); margin-bottom: 8px; }
.reason-list p { color: rgba(255, 255, 255, .7); font-size: .98rem; }
.reason-list li { padding-left: 18px; border-left: 2px solid var(--indigo); }

/* Engagement models */
.model-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 44px; border-top: 1px solid var(--line); }
.model { padding: 32px 32px 8px 0; }
.model + .model { padding-left: 32px; border-left: 1px solid var(--line); }
.model h3 { font-size: 1.45rem; margin-bottom: 12px; }
.model p { color: var(--slate); }
.model .fit { margin-top: 14px; color: var(--ink); font-weight: 500; }

/* Tech stack */
.stack { background: var(--paper); }
.stack-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.stack-list li { padding: 8px 16px; border: 1px solid var(--line); background: var(--white); border-radius: 999px; font-size: .95rem; color: var(--text); }
.stack-list.small { margin-top: 16px; gap: 8px; }
.stack-list.small li { font-size: .88rem; padding: 6px 12px; }

/* Contact */
.contact { background: var(--ink); color: rgba(255, 255, 255, .8); }
.contact h2 { color: var(--white); }
.contact-sub { margin-top: 16px; font-size: 1.08rem; }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; }
.contact-lines { margin-top: 36px; display: grid; gap: 18px; }
.contact-lines dt { font-size: .85rem; color: var(--iris); }
.contact-lines dd a { color: var(--white); text-decoration: none; }
.contact-lines dd a:hover { text-decoration: underline; }
.form { display: grid; gap: 18px; background: var(--ink-2); padding: 36px; border-radius: 20px; border: 1px solid var(--ink-3); }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form label { display: grid; gap: 8px; font-size: .9rem; font-weight: 500; color: rgba(255, 255, 255, .85); }
.form input, .form select, .form textarea { width: 100%; padding: 13px 14px; border-radius: 10px; border: 1px solid var(--ink-3); background: var(--ink); color: var(--white); font: 400 1rem/1.4 var(--body); }
.form select option { color: var(--text); background: var(--white); }
.form textarea { resize: vertical; min-height: 130px; }
.form textarea::placeholder { color: rgba(255, 255, 255, .4); }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--indigo); border-color: transparent; }
.form .btn { justify-self: start; }

/* Services index */
.svc-rows li { border-bottom: 1px solid var(--line); }
.svc-rows li:first-child { border-top: 1px solid var(--line); }
.svc-rows a { display: grid; grid-template-columns: 1fr 1.2fr auto; gap: 40px; align-items: center; padding: 34px 0; text-decoration: none; }
.svc-rows h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
.svc-rows p { color: var(--slate); }
.svc-rows .more { font-weight: 600; color: var(--indigo); white-space: nowrap; }
.svc-rows a:hover h2 { color: var(--indigo); }

/* Service page */
.svc-intro-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 72px; align-items: start; }
.prose p { font-size: 1.12rem; color: var(--text); }
.prose p + p { margin-top: 20px; }
.tools { background: var(--paper); border-radius: 16px; padding: 28px; }
.tools h2 { font-size: 1.15rem; }
.facts { display: grid; gap: 14px; margin-top: 16px; font-size: .97rem; }
.facts dt { color: var(--slate); font-size: .85rem; }
.deliver { background: var(--paper); }
.deliver-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 44px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.deliver-list li { padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.deliver-list li:nth-child(3n) { border-right: 0; }
.deliver-list li:nth-last-child(-n+3) { border-bottom: 0; }
.deliver-list h3 { margin-bottom: 8px; }
.deliver-list p { color: var(--slate); font-size: .98rem; }
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { cursor: pointer; list-style: none; padding: 22px 40px 22px 0; font: 600 1.12rem/1.4 var(--display); color: var(--ink); position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 12px; height: 12px; border-right: 2px solid var(--indigo); border-bottom: 2px solid var(--indigo); transform: translateY(-75%) rotate(45deg); transition: transform .2s; }
.faq-list details[open] summary::after { transform: translateY(-25%) rotate(-135deg); }
.faq-list details p { padding: 0 0 24px; color: var(--slate); }
.related { padding-top: 0 !important; }
.related h2 { font-size: 1.4rem; }
.related-list { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.related-list a { display: inline-block; padding: 10px 18px; border: 1.5px solid var(--line); border-radius: 999px; text-decoration: none; font-weight: 500; }
.related-list a:hover { border-color: var(--indigo); color: var(--indigo); }

/* Footer */
.site-footer { background: #070D24; color: rgba(255, 255, 255, .62); padding: 72px 0 28px; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr .8fr 1.2fr; gap: 40px; }
.footer-about { margin-top: 16px; max-width: 34ch; }
.site-footer h3 { color: var(--white); font: 600 .95rem/1.2 var(--body); letter-spacing: 0; margin-bottom: 16px; }
.site-footer ul { display: grid; gap: 10px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 56px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .08); font-size: .85rem; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid, .reasons-grid, .contact-grid, .svc-intro-grid, .faq-grid { grid-template-columns: 1fr; gap: 48px; }
  .section-head { grid-template-columns: 1fr; gap: 16px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .deliver-list { grid-template-columns: 1fr 1fr; }
  .deliver-list li { border-right: 1px solid var(--line) !important; border-bottom: 1px solid var(--line) !important; }
  .deliver-list li:nth-child(2n) { border-right: 0 !important; }
}
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--ink); border-bottom: 1px solid rgba(255, 255, 255, .1); padding: 8px 28px 24px; }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn) { display: block; padding: 14px 0; font-size: 1.05rem; }
  .nav-cta { margin-top: 12px; } .nav-cta .btn { width: 100%; }
  .bento { grid-template-columns: 1fr; grid-template-areas: none; }
  .tile, .tile-ai, .tile-staff { grid-area: auto !important; min-height: 0; }
  .model-grid { grid-template-columns: 1fr; }
  .model, .model + .model { padding: 28px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .reason-list { grid-template-columns: 1fr; }
  .svc-rows a { grid-template-columns: 1fr; gap: 10px; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .wrap { padding: 0 20px; }
  section:not(.hero) { padding: 72px 0; }
  .hero { padding: 64px 0 72px; }
  .steps, .deliver-list, .form .row, .footer-grid { grid-template-columns: 1fr; }
  .deliver-list li { border-right: 0 !important; }
  .form { padding: 24px; }
  .run-step { grid-template-columns: 1fr; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}