/* Human Advisory website. Tokens come from brand.css. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
html, body { margin: 0; }
body {
  background: var(--ha-black); color: var(--ha-white);
  font: 400 16px/1.6 var(--ha-text);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
p, h1, h2 { margin: 0; }
ol, ul { list-style: none; margin: 0; padding: 0; }
::selection { background: var(--ha-white); color: var(--ha-black); }

.wrap { max-width: 1280px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ha-white); color: var(--ha-black); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 1px solid var(--ha-white); outline-offset: 3px; }
.ha-light :focus-visible { outline-color: var(--ha-black); }
.ha-display { font-stretch: 125%; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 48px; padding: 0 22px;
  background: var(--ha-white); color: var(--ha-black);
  border: 1px solid var(--ha-white); border-radius: 2px;
  font: 500 14px/1 var(--ha-text); letter-spacing: .02em; text-decoration: none;
  cursor: pointer; transition: background .25s var(--ha-ease), color .25s var(--ha-ease);
}
.btn span { transition: transform .25s var(--ha-ease); }
.btn:hover { background: transparent; color: var(--ha-white); }
.btn:hover span { transform: translateX(3px); }
.btn-ghost { background: transparent; color: var(--ha-white); border-color: var(--ha-graphite); }
.btn-ghost:hover { border-color: var(--ha-white); }
.btn-sm { height: 36px; padding: 0 14px; font-size: 13px; }
.btn-block { width: 100%; height: 54px; }
.ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Header ---------- */
.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,10,.85);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s var(--ha-ease);
}
.top.scrolled { border-bottom-color: var(--ha-graphite); }
.topbar { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.logo img { height: 18px; width: auto; }
.top nav { display: flex; align-items: center; gap: 28px; }
.top nav a:not(.btn) { color: var(--ha-grey); text-decoration: none; font-size: 14px; transition: color .2s; }
.top nav a:not(.btn):hover { color: var(--ha-white); }

.eyebrow { color: var(--ha-grey); }
.lede { color: var(--ha-grey); font-size: clamp(17px, 1.6vw, 20px); line-height: 1.5; max-width: 40ch; }

/* ---------- Hero: Particle H ---------- */
.ph-stage {
  position: relative; overflow: hidden; display: flex; align-items: flex-end;
  min-height: max(600px, calc(100svh - 72px)); touch-action: pan-y;
}
.ph-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.ph-copy { position: relative; width: 100%; padding-bottom: clamp(48px, 9vh, 110px); pointer-events: none; }
.ph-copy a { pointer-events: auto; }
.ph-title { font-size: clamp(42px, 5vw, 84px); margin-top: 20px; text-transform: uppercase; line-height: .95; letter-spacing: -.03em; }
.ph-copy .lede { margin-top: 24px; max-width: 32ch; }
.ph-copy .ctas { margin-top: 28px; }
.ph-live { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--ha-white); margin-right: 10px; vertical-align: 1px; animation: blink 1.6s infinite; }
@keyframes blink { 50% { opacity: .2; } }
.ph-src span, .ph-out span {
  position: absolute; transform: translateY(-50%);
  font: 500 11px/1 var(--ha-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ha-grey);
}
.ph-src span { left: clamp(16px, 4vw, 48px); }
.ph-src span::before { content: ""; display: inline-block; width: 18px; height: 1px; background: #555; margin-right: 10px; vertical-align: 3px; }
.ph-out span { right: clamp(16px, 4vw, 48px); text-align: right; color: #cfcfcf; }
.ph-out b { font: 500 22px/1 var(--ha-display); font-stretch: 125%; color: var(--ha-white); display: block; margin-bottom: 6px; }

/* ---------- Sections ---------- */
.sec { padding: clamp(112px, 16vw, 200px) 0; }
.kicker { color: var(--ha-grey); }
.ha-light .kicker { color: #6E6E6E; }
.sec-title { font-size: clamp(40px, 6.4vw, 96px); margin-top: 24px; text-transform: uppercase; line-height: .96; letter-spacing: -.03em; }
.sec-sub { color: var(--ha-grey); font-size: clamp(17px, 1.6vw, 20px); margin-top: 24px; max-width: 40ch; }
.ha-light .sec-sub { color: #555; }

/* E-commerce result */
.result { margin-top: clamp(32px, 4vw, 48px); display: flex; align-items: flex-end; gap: clamp(20px, 4vw, 56px); flex-wrap: wrap; }
.big {
  font: 500 clamp(96px, 19vw, 280px)/.82 var(--ha-display); font-stretch: 125%;
  letter-spacing: -.05em;
}
.big-cap { font: 500 clamp(22px, 2.6vw, 36px)/1.2 var(--ha-text); padding-bottom: .4em; }
.big-cap span { color: var(--ha-grey); }


.trio { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(72px, 9vw, 120px); border-top: 1px solid var(--ha-graphite); }
.trio li { padding: 28px 24px 0 0; }
.trio span { color: var(--ha-grey); }
.trio b { display: block; font-weight: 500; font-size: clamp(18px, 1.7vw, 22px); margin-top: 12px; }

/* Service businesses */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(20px, 3vw, 40px); margin-top: clamp(64px, 8vw, 112px); }
.steps li { border-top: 1px solid var(--ha-black); padding-top: 24px; }
.steps .n { font: 500 13px/1 var(--ha-mono); color: #6E6E6E; letter-spacing: .1em; }
.steps b { display: block; font: 500 clamp(22px, 2.1vw, 28px)/1.15 var(--ha-display); font-stretch: 125%; text-transform: uppercase; letter-spacing: -.01em; margin-top: 28px; }
.steps p { color: #555; margin-top: 10px; }

.proof { display: flex; align-items: flex-end; gap: clamp(20px, 4vw, 48px); flex-wrap: wrap; margin-top: clamp(80px, 10vw, 136px); padding-top: clamp(40px, 5vw, 56px); border-top: 1px solid var(--ha-silver); }
.proof-num { font: 500 clamp(72px, 10vw, 150px)/.85 var(--ha-display); font-stretch: 125%; letter-spacing: -.045em; }
.proof-cap { font-size: clamp(17px, 1.6vw, 20px); color: #444; padding-bottom: .4em; }

/* Contact */
.contact { border-top: 1px solid var(--ha-graphite); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(48px, 8vw, 128px); align-items: start; }
.mail { margin-top: 40px; font-size: 18px; }
.mail a { text-decoration: none; border-bottom: 1px solid var(--ha-graphite); padding-bottom: 2px; }
.mail a:hover { border-color: var(--ha-white); }

.form { display: grid; gap: 28px; }
.field { display: grid; gap: 8px; }
.field label { font: 500 11px/1.2 var(--ha-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ha-grey); }
.field em { font-style: normal; color: #5f5f5f; }
.field input, .field textarea {
  width: 100%; background: transparent; color: var(--ha-white); border: 0; border-bottom: 1px solid var(--ha-graphite);
  font: 400 18px/1.4 var(--ha-text); padding: 8px 0 12px; border-radius: 0; transition: border-color .2s;
}
.field textarea { resize: vertical; min-height: 56px; }
.field input:focus, .field textarea:focus { outline: none; border-bottom-color: var(--ha-white); }
.field.bad input { border-bottom-color: var(--ha-accent); }
.form .btn-block { margin-top: 8px; }
.form-note { font-size: 13px; color: var(--ha-grey); text-align: center; }

/* ---------- Footer ---------- */
.foot { border-top: 1px solid var(--ha-graphite); padding: 40px 0; color: var(--ha-grey); font-size: 13px; }
.foot-grid { display: flex; align-items: center; gap: 24px; }
.foot-grid img:first-child { height: 14px; width: auto; margin-right: auto; }
.foot-mark { width: 22px; height: auto; }

/* ---------- 404 ---------- */
.hero { padding: clamp(56px, 10vw, 120px) 0; }
.hero h1 { font-size: clamp(44px, 9vw, 132px); margin: 22px 0 0; text-transform: uppercase; line-height: .96; letter-spacing: -.03em; }
.hero-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-top: 40px; flex-wrap: wrap; }

/* ---------- Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .9s var(--ha-ease), transform .9s var(--ha-ease); }
.js .reveal.in { opacity: 1; transform: none; }

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

@media (max-width: 760px) {
  html { scroll-padding-top: 60px; }
  .topbar { height: 60px; }
  .logo img { height: 12px; }
  .top nav a:not(.btn) { display: none; }

  .ph-stage { align-items: flex-start; min-height: max(640px, calc(100svh - 60px)); }
  .ph-copy { padding-top: 36px; padding-bottom: 0; }
  .ph-title { font-size: clamp(38px, 11vw, 56px); }
  .ph-copy .lede { font-size: 16px; margin-top: 16px; }
  .ph-copy .ctas { margin-top: 20px; }
  .ph-copy .ctas .btn { flex: 1; }
  .ph-src span { font-size: 10px; }
  .ph-src span::before { width: 10px; margin-right: 6px; }
  .ph-out b { font-size: 17px; }
  .ph-out span { font-size: 10px; }

  .sec { padding: 96px 0; }
  .result { flex-direction: column; align-items: flex-start; gap: 16px; }
  .big { font-size: clamp(88px, 27vw, 140px); }
  .big-cap { padding-bottom: 0; }
  .trio { grid-template-columns: 1fr; margin-top: 64px; }
  .trio li { padding: 20px 0; border-bottom: 1px solid var(--ha-graphite); }
  .trio b { margin-top: 8px; }

  .steps { grid-template-columns: 1fr; row-gap: 0; margin-top: 56px; }
  .steps li { display: grid; grid-template-columns: 44px 1fr; column-gap: 12px; padding: 22px 0; }
  .steps li:last-child { border-bottom: 1px solid var(--ha-black); }
  .steps .n { padding-top: 6px; grid-row: span 2; }
  .steps b { margin-top: 0; font-size: 20px; }
  .steps p { margin-top: 6px; }
  .proof { flex-direction: column; align-items: flex-start; gap: 16px; margin-top: 72px; }
  .proof-cap br { display: none; }

  .foot-grid { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}