/* Ravel Softworks: a tech consultancy landing page.
   Paper and navy grounds, logo teal as the one accent (deep on paper, bright on navy). */

:root {
  --paper: #F3F1EB;
  --paper-2: #E9E6DE;
  --white: #FBFAF7;
  --navy: #0C1B36;
  --navy-2: #142849;

  --sc-canvas: var(--paper);
  --sc-surface: var(--white);
  --sc-ink: #0C1B36;
  --sc-ink-soft: #4A5670;
  --sc-accent: #0A6E65;
  --sc-accent-ink: #F3F1EB;

  --sc-font-display: "Geist", system-ui, sans-serif;
  --sc-font-text: "Geist", system-ui, sans-serif;
  --sc-font-mono: "Geist Mono", ui-monospace, monospace;
  --sc-shadow-color: 220 45% 12%;
  --r: 10px;
  --nav-h: 68px;
}

html { scroll-padding-top: calc(var(--nav-h) + 12px); }
body { background: var(--paper); }
[hidden] { display: none !important; }

.section--navy {
  --sc-canvas: var(--navy); --sc-surface: var(--navy-2);
  --sc-ink: #F3F1EB; --sc-ink-soft: #A9B4C8;
  --sc-accent: #3DD6C3; --sc-accent-ink: #0C1B36;
  background: var(--navy); color: var(--sc-ink);
  letter-spacing: 0.004em;
}
.section--tint { background: var(--paper-2); }

.skip { position: fixed; left: 1rem; top: 1rem; z-index: 100; background: var(--navy); color: var(--paper); padding: .6rem 1rem; transform: translateY(-200%); }
.skip:focus { transform: none; }

/* ------------------------------------------------------------ type ---- */
.h2 {
  font-family: var(--sc-font-display); font-weight: 600;
  font-size: var(--sc-t-2xl); line-height: 1.05; letter-spacing: -0.035em;
  margin: 0; text-wrap: balance;
}
.h2--xl { font-size: clamp(2.2rem, 1.2rem + 3.4vw, 4.4rem); letter-spacing: -0.04em; }
.h3 { font-size: var(--sc-t-lg); font-weight: 600; letter-spacing: -0.015em; margin: 0 0 var(--sc-4); }
.eyebrow { margin: 0 0 var(--sc-3); font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); letter-spacing: .08em; text-transform: uppercase; color: var(--sc-accent); }
.head { margin-bottom: clamp(2rem, 4vw, 3.5rem); max-width: 44rem; }
.head__dek { margin: var(--sc-4) 0 0; color: var(--sc-ink-soft); font-size: var(--sc-t-lg); line-height: 1.5; max-width: 42ch; text-wrap: pretty; }
.head--split { max-width: none; display: grid; grid-template-columns: 1fr 1fr; gap: var(--sc-6); align-items: end; }
.head--split .head__dek { margin: 0; justify-self: end; }

.section { position: relative; padding-block: var(--sc-section); }

/* ------------------------------------------------------------ buttons -- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  min-height: 2.75rem; padding: 0 1.15rem;
  background: var(--navy); color: var(--paper);
  font-weight: 500; font-size: var(--sc-t-sm); letter-spacing: 0;
  text-decoration: none; border: 1px solid transparent; border-radius: 8px;
  box-shadow: var(--sc-e1);
  cursor: pointer; white-space: nowrap;
  transition: background-color 160ms var(--sc-ease-out), color 160ms var(--sc-ease-out), border-color 160ms var(--sc-ease-out), transform 120ms var(--sc-ease-out);
}
.btn svg { width: 1.1em; height: 1.1em; }
.btn--lg { min-height: 3.25rem; padding: 0 1.5rem; font-size: var(--sc-t-base); }
.btn--ghost { background: transparent; color: var(--sc-ink); border-color: color-mix(in oklab, var(--sc-ink) 22%, transparent); box-shadow: none; }
.btn--accent { background: var(--sc-accent); color: var(--sc-accent-ink); }
/* primary buttons carry a block edge: a darker side that the button presses into */
.btn:not(.btn--ghost) { box-shadow: 3px 3px 0 0 var(--btn-edge, #040B1A), var(--sc-e1); }
.btn--accent { --btn-edge: #1B8F82; }
.btn:not(.btn--ghost):active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 0 var(--btn-edge, #040B1A); }
.btn--ghost:active { transform: translateY(1px) scale(0.98); }
.btn[disabled] { opacity: .6; cursor: not-allowed; }
.is-sending .btn[disabled] { cursor: wait; }
@media (hover: hover) and (pointer: fine) {
  .btn:hover { background: #0A6E65; color: #F3F1EB; --btn-edge: #064E47; }
  .btn--ghost:hover { background: color-mix(in oklab, var(--sc-ink) 6%, transparent); color: var(--sc-ink); border-color: var(--sc-ink); }
  .btn--accent:hover { background: #F3F1EB; color: var(--navy); --btn-edge: #9FB0C9; }
}

/* ------------------------------------------------------------ nav ---- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: var(--sc-z-chrome);
  height: var(--nav-h);
  background: color-mix(in oklab, var(--paper) 96%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--sc-ease-out), box-shadow 200ms var(--sc-ease-out);
  --sc-ink: #0C1B36; --sc-accent: #0A6E65;
  color: var(--sc-ink);
}
.nav.is-scrolled { border-color: color-mix(in oklab, var(--navy) 10%, transparent); box-shadow: 0 6px 20px -12px hsl(var(--sc-shadow-color) / .25); }
.nav__inner { height: 100%; max-width: var(--sc-maxw); margin-inline: auto; padding-inline: var(--sc-gutter); display: flex; align-items: center; gap: var(--sc-6); }
.nav__brand { white-space: nowrap; flex: none; display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; font-size: 1.02rem; letter-spacing: -0.01em; margin: 0; color: var(--sc-ink); }
.nav__brand img { width: 30px; height: 30px; }
.nav__brand b { font-weight: 600; }
.nav__links { display: flex; gap: var(--sc-1); margin-left: auto; }
.nav__links a { padding: .5rem .8rem; border-radius: 6px; text-decoration: none; font-size: var(--sc-t-sm); color: var(--sc-ink-soft); transition: color 140ms var(--sc-ease-out), background-color 140ms var(--sc-ease-out); }
.nav__links a:hover { color: var(--sc-ink); background: color-mix(in oklab, var(--navy) 6%, transparent); }
.nav__actions { display: flex; align-items: center; gap: var(--sc-2); }
.nav__burger { display: none; width: 2.75rem; height: 2.75rem; border: 0; background: none; cursor: pointer; position: relative; border-radius: 6px; }
.nav__burger span { position: absolute; left: 12px; right: 12px; height: 1.5px; background: var(--navy); transition: transform 200ms var(--sc-ease-out); }
.nav__burger span:first-child { top: 17px; } .nav__burger span:last-child { top: 25px; }
.nav__burger[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ------------------------------------------------------------ hero ---- */
.hero__stage {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: center; gap: var(--sc-6);
  padding: calc(var(--nav-h) + 1rem) var(--sc-gutter) 2rem;
  max-width: 96rem; margin-inline: auto;
}
.hero__copy { position: relative; z-index: 4; }
.badge {
  display: inline-flex; align-items: center; gap: .55rem; margin: 0 0 var(--sc-6);
  padding: .4rem .8rem; border-radius: 999px;
  background: var(--white); border: 1px solid color-mix(in oklab, var(--navy) 12%, transparent);
  font-size: var(--sc-t-xs); color: var(--sc-ink-soft); box-shadow: var(--sc-e1);
}
.badge__dot { width: .5rem; height: .5rem; border-radius: 50%; background: #12B8A6; box-shadow: 0 0 0 3px color-mix(in oklab, #12B8A6 22%, transparent); }
.hero__h1 {
  font-weight: 600; font-size: clamp(2.5rem, 1.2rem + 3.7vw, 5rem);
  line-height: 1.0; letter-spacing: -0.045em; margin: 0; max-width: 14ch; text-wrap: balance;
}
.hero__sub { margin: var(--sc-5) 0 0; max-width: 42ch; font-size: var(--sc-t-lg); line-height: 1.5; color: var(--sc-ink-soft); text-wrap: pretty; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--sc-3); margin: var(--sc-6) 0 0; }

.hero__art { position: relative; height: min(76vh, 44rem); display: flex; align-items: center; }
.hero__svg { width: 100%; height: 100%; overflow: visible; will-change: transform; }
.hero__cubes { position: absolute; max-width: none; pointer-events: none; will-change: transform; }
.hero__svg { position: relative; }
.hero__svg text, .why__media text, #builder-svg text { font-family: var(--sc-font-mono); }
.hero__far {
  position: absolute; inset: -6% -10%;
  background-image: radial-gradient(circle, color-mix(in oklab, var(--navy) 22%, transparent) 1px, transparent 1.4px);
  background-size: 26px 15px;
  -webkit-mask-image: radial-gradient(60% 60% at 55% 50%, #000 30%, transparent 75%);
          mask-image: radial-gradient(60% 60% at 55% 50%, #000 30%, transparent 75%);
  will-change: transform;
}
.hero__near { position: absolute; inset: 0; pointer-events: none; z-index: 3; }
.near { position: absolute; width: clamp(56px, 7vw, 104px); height: auto; will-change: transform; filter: blur(1.2px); }
.near--a { left: -8%; top: 8%; }
.near--b { right: -2%; bottom: 14%; width: clamp(70px, 9vw, 136px); filter: blur(2.4px); }
.near--c { right: 22%; top: 0; width: clamp(40px, 4.6vw, 70px); filter: blur(.6px); }

/* ------------------------------------------------------------ trust --- */
.trust { background: var(--white); border-block: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); position: relative; z-index: 2; }
.trust__list { list-style: none; margin: 0 auto; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.trust__list li { display: flex; gap: .85rem; align-items: flex-start; padding: var(--sc-5) var(--sc-4); }
.trust__list li + li { border-left: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }
.bicon { flex: none; display: block; width: 2.3rem; height: 2.3rem; }
.bicon svg { width: 100%; height: 100%; overflow: visible; }
.trust .bicon { width: 2.9rem; height: 2.9rem; margin-top: -.35rem; }
.trust p { margin: 0; font-size: var(--sc-t-sm); line-height: 1.35; }
.trust b { display: block; font-weight: 600; }
.trust span { color: var(--sc-ink-soft); }

/* ------------------------------------------------------- stepped edges --
   Where paper meets navy, the boundary steps up like stacked blocks (top right)
   and back down (bottom left). */
.problems, .process, .contact { position: relative; }
.problems::before, .process::before, .contact::before,
.problems::after, .process::after {
  content: ""; position: absolute; left: 0; right: 0; height: 24px; background: var(--navy);
  pointer-events: none; z-index: 2;
}
.problems::before, .process::before, .contact::before {
  top: -23px;
  clip-path: polygon(0 100%, 76% 100%, 76% 66.6%, 84% 66.6%, 84% 33.3%, 92% 33.3%, 92% 0, 100% 0, 100% 100%);
}
.problems::after, .process::after {
  bottom: -23px;
  clip-path: polygon(0 0, 100% 0, 24% 0, 24% 33.3%, 16% 33.3%, 16% 66.6%, 8% 66.6%, 8% 100%, 0 100%);
}

/* ------------------------------------------------------------ problems -- */
#problems { padding-block: clamp(5rem, 11vw, 9rem); }
.statement { max-width: 60rem; padding-bottom: .15em; }
.statement .h2 { max-width: 22ch; }
.statement .word { opacity: var(--lit, 1); transition: opacity 180ms linear; }
/* three parts that fit together: no gap between them, so once the scroll has
   pulled them home they read as one panel with hairline seams */
.pains { list-style: none; padding: 0; margin: clamp(3rem, 6vw, 5rem) 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
.pains li { padding: var(--sc-6); background: var(--navy-2); box-shadow: var(--sc-edge); will-change: transform; }
.pains li:first-child { border-radius: var(--r) 0 0 var(--r); }
.pains li:last-child { border-radius: 0 var(--r) var(--r) 0; }
.pains li + li { border-left: 1px solid color-mix(in oklab, var(--sc-ink) 10%, transparent); }
.pains .bicon { width: 3.2rem; height: 3.2rem; margin-left: -.2rem; }
.pains h3 { margin: var(--sc-5) 0 var(--sc-2); font-size: var(--sc-t-lg); font-weight: 600; letter-spacing: -0.015em; }
.pains p { margin: 0; color: var(--sc-ink-soft); }
.pains__turn { opacity: var(--turn, 1); transform: translateY(calc((1 - var(--turn, 1)) * 12px)); margin: var(--sc-7) 0 0; font-size: var(--sc-t-xl); font-weight: 500; letter-spacing: -0.02em; line-height: 1.3; max-width: 34ch; color: var(--sc-accent); }

/* ------------------------------------------------------------ services -- */
/* The heading holds on the left; the cards stack on the right, each one
   sticking a little lower than the last so the stack's edges stay visible. */
.services { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr); gap: var(--sc-8); align-items: start; }
.services__head { position: sticky; top: calc(var(--nav-h) + 3rem); margin: 0; }
.stack { display: grid; gap: 5vh; padding-bottom: 6vh; }
.card {
  position: sticky; top: calc(var(--nav-h) + 1.5rem + var(--i) * 14px);
  display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1fr); min-height: 19rem;
  background: var(--white); border-radius: var(--r); overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--navy) 8%, transparent);
  box-shadow: var(--sc-e2);
  transform-origin: 50% 0; will-change: transform;
}
.card::after {                             /* darkens a card as the next one covers it */
  content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit;
  background: var(--navy); opacity: calc(var(--cover, 0) * 0.22);
}
.card__media { background: linear-gradient(160deg, #EDEAE2, #E1DDD2); display: grid; place-items: center; overflow: hidden; position: relative; min-height: 100%; }
.card__media::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle, color-mix(in oklab, var(--navy) 16%, transparent) 1px, transparent 1.3px); background-size: 22px 13px; opacity: .8; }
.card__media svg, .card__media img { position: relative; width: 100%; height: 100%; object-fit: cover; }
.card__body { padding: var(--sc-6); display: flex; flex-direction: column; }
.card h3 { margin: 0 0 var(--sc-3); font-size: var(--sc-t-xl); font-weight: 600; letter-spacing: -0.025em; line-height: 1.15; }
.card p { margin: 0; color: var(--sc-ink-soft); font-size: var(--sc-t-sm); line-height: 1.6; text-wrap: pretty; }
.tags { list-style: none; margin: auto 0 0; padding: var(--sc-5) 0 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.tags li { font-family: var(--sc-font-mono); font-size: .72rem; padding: .25rem .55rem; border-radius: 999px; background: var(--paper); color: var(--sc-ink-soft); border: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }

/* ------------------------------------------------------------ demo ---- */
.automation__stage { display: flex; align-items: center; padding-top: calc(var(--nav-h) + 1rem); padding-bottom: 1rem; }
.automation__stage > .sc-wrap { width: 100%; }
.automation .head { margin-bottom: var(--sc-6); }
.demo__bar { height: 3px; background: color-mix(in oklab, var(--navy) 8%, transparent); }
.demo__bar span { display: block; height: 100%; background: #12B8A6; transform-origin: 0 50%; transform: scaleX(var(--demo-p, 0)); }
.teams { padding-top: var(--sc-7); }
.teams .depts { margin-top: 0; }
.demo { background: var(--white); border-radius: var(--r); border: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); box-shadow: var(--sc-e2); overflow: hidden; }
.demo__tabs { display: flex; gap: var(--sc-1); padding: var(--sc-2); background: var(--paper); border-bottom: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); overflow-x: auto; }
.demo__tabs button { flex: none; border: 0; background: none; padding: .6rem 1rem; border-radius: 6px; font-size: var(--sc-t-sm); color: var(--sc-ink-soft); cursor: pointer; transition: background-color 150ms var(--sc-ease-out), color 150ms var(--sc-ease-out); }
.demo__tabs button:hover { color: var(--sc-ink); }
.demo__tabs button[aria-selected="true"] { background: var(--navy); color: var(--paper); }
.demo__panel { display: grid; grid-template-columns: 1fr 1.6fr 1fr; min-height: 22rem; }
.demo__col { padding: var(--sc-6) var(--sc-5); }
.demo__col + .demo__col { border-left: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }
.demo__col--agent { background: color-mix(in oklab, var(--paper) 50%, var(--white)); }
.demo__label { margin: 0 0 var(--sc-4); font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); letter-spacing: .08em; text-transform: uppercase; color: #0A6E65; }
.demo__trigger, .demo__outcome { margin: 0; font-size: var(--sc-t-lg); font-weight: 500; letter-spacing: -0.015em; line-height: 1.35; }
.demo__outcome { opacity: .25; transition: opacity 300ms var(--sc-ease-out); }
.demo__outcome.is-done { opacity: 1; }
.demo__human { margin: var(--sc-4) 0 0; font-size: var(--sc-t-sm); color: var(--sc-ink-soft); padding-left: .9rem; border-left: 1px solid #0A6E65; opacity: 0; transition: opacity 300ms var(--sc-ease-out); }
.demo__outcome.is-done + .demo__human { opacity: 1; }
.demo__steps { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sc-2); }
.demo__steps li { display: flex; gap: .75rem; align-items: flex-start; padding: .65rem .8rem; border-radius: 8px; font-size: var(--sc-t-sm); color: var(--sc-ink-soft); background: transparent; transition: background-color 250ms var(--sc-ease-out), color 250ms var(--sc-ease-out); }
.demo__steps li::before { content: ""; flex: none; width: 1rem; height: 1rem; margin-top: .15rem; border-radius: 50%; border: 1.5px solid color-mix(in oklab, var(--navy) 25%, transparent); transition: background-color 200ms var(--sc-ease-out), border-color 200ms var(--sc-ease-out); }
.demo__steps li.is-active { background: var(--white); color: var(--sc-ink); box-shadow: var(--sc-e1); }
.demo__steps li.is-active::before { border-color: #12B8A6; border-top-color: transparent; animation: spin 700ms linear infinite; }
.demo__steps li.is-done { color: var(--sc-ink); }
.demo__steps li.is-done::before { background: #12B8A6 url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2'/></svg>") center/80% no-repeat; border-color: #12B8A6; }
@keyframes spin { to { transform: rotate(360deg); } }
.demo__note { margin: 0; padding: var(--sc-3) var(--sc-5); font-size: var(--sc-t-xs); color: var(--sc-ink-soft); border-top: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); background: var(--paper); }

.depts { margin-top: clamp(3rem, 6vw, 5rem); }
.depts__grid { margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 var(--sc-6); }
.depts__grid div { padding: var(--sc-4) 0; border-top: 1px solid color-mix(in oklab, var(--navy) 14%, transparent); }
.depts__grid dt { font-weight: 600; margin-bottom: var(--sc-1); }
.depts__grid dd { margin: 0; color: var(--sc-ink-soft); font-size: var(--sc-t-sm); }

/* ------------------------------------------------------------ builder -- */
.builder { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: var(--sc-8); align-items: start; }
.builder__plate { position: sticky; top: calc(var(--nav-h) + 1rem); }
.plate--builder { margin: 0; background: var(--white); border-radius: var(--r); padding: var(--sc-5); border: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); box-shadow: var(--sc-e2); }
.plate--builder svg { width: 100%; height: auto; max-height: 42vh; overflow: visible; }
.builder__cap { font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); color: var(--sc-ink-soft); margin-top: var(--sc-3); }
.running { margin-top: var(--sc-5); padding: var(--sc-5); border-radius: var(--r); background: var(--navy); color: var(--paper); }
.running__label { margin: 0 0 var(--sc-2); font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); letter-spacing: .08em; text-transform: uppercase; color: #3DD6C3; }
.running__text { margin: 0; font-size: var(--sc-t-base); line-height: 1.5; min-height: 3em; text-wrap: pretty; }
.running__text em { font-style: normal; color: #3DD6C3; }
.builder__choices { padding-bottom: 6vh; }
.choice { border: 0; margin: 0 0 var(--sc-6); padding: 0; min-width: 0; }
.choice legend { font-weight: 600; font-size: var(--sc-t-base); margin-bottom: var(--sc-3); padding: 0; }
.choice__grid { display: flex; flex-wrap: wrap; gap: var(--sc-2); }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span {
  display: inline-flex; align-items: center; gap: .55em;
  min-height: 2.75rem; padding: .5rem 1rem .5rem .8rem;
  border: 1px solid color-mix(in oklab, var(--navy) 18%, transparent); border-radius: 8px;
  background: var(--white); font-size: var(--sc-t-sm);
  transition: background-color 150ms var(--sc-ease-out), border-color 150ms var(--sc-ease-out), color 150ms var(--sc-ease-out), transform 120ms var(--sc-ease-out);
}
.chip span::before { content: ""; width: .8rem; height: .8rem; flex: none; border: 1.5px solid currentColor; border-radius: 3px; opacity: .5; transition: background-color 150ms var(--sc-ease-out), opacity 150ms var(--sc-ease-out); }
.chip input[type="radio"] + span::before { border-radius: 50%; }
.chip input:checked + span { background: var(--navy); color: var(--paper); border-color: var(--navy); }
.chip input:checked + span::before { background: var(--c, #3DD6C3); border-color: var(--c, #3DD6C3); opacity: 1; }
.chip input:focus-visible + span { outline: 2px solid var(--sc-accent); outline-offset: 3px; }
.chip:active span { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) { .chip:hover input:not(:checked) + span { border-color: var(--navy); } }
.builder__go { display: flex; flex-direction: column; align-items: flex-start; gap: var(--sc-3); }
.builder__note { margin: 0; color: var(--sc-ink-soft); font-size: var(--sc-t-sm); max-width: 36ch; }

/* ------------------------------------------------------------ process -- */
.process__stage { display: flex; align-items: center; }
.process__stack { position: absolute; right: var(--sc-gutter); z-index: 3; overflow: visible; pointer-events: none; }
.process__course { opacity: 0; transform: translateY(-26px); transition: opacity 360ms var(--sc-ease-out), transform 460ms cubic-bezier(.34, 1.4, .64, 1); }
.process__course.is-on { opacity: 1; transform: none; }
.process__bar { position: absolute; left: var(--sc-gutter); right: var(--sc-gutter); bottom: 9vh; height: 2px; background: color-mix(in oklab, var(--sc-ink) 14%, transparent); }
.process__bar span { display: block; height: 100%; background: var(--sc-accent); transform-origin: 0 50%; transform: scaleX(var(--sc-p, 0)); }
.rail { align-items: stretch; gap: var(--sc-5); padding-inline: var(--sc-gutter); width: max-content; }
.rail__lead { width: min(28rem, 80vw); flex: none; align-self: center; padding-right: var(--sc-6); }
.stage { flex: none; width: clamp(17rem, 26vw, 23rem); display: flex; flex-direction: column; padding: var(--sc-6); border-radius: var(--r); background: var(--navy-2); box-shadow: var(--sc-edge); }
.stage__n { margin: 0; font-family: var(--sc-font-mono); font-size: var(--sc-t-sm); color: var(--sc-accent); }
.stage__h { font-weight: 600; font-size: var(--sc-t-2xl); letter-spacing: -0.035em; margin: var(--sc-7) 0 var(--sc-3); }
.stage > p:not(.stage__n):not(.stage__keep) { margin: 0; color: var(--sc-ink-soft); text-wrap: pretty; }
.stage__keep { margin: auto 0 0; padding-top: var(--sc-6); font-size: var(--sc-t-sm); }
.stage__keep span { display: block; font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); letter-spacing: .08em; text-transform: uppercase; color: var(--sc-accent); margin-bottom: var(--sc-1); }
.rail__end { flex: none; align-self: center; width: min(18rem, 70vw); margin: 0 0 0 var(--sc-5); font-size: var(--sc-t-2xl); font-weight: 600; letter-spacing: -0.035em; line-height: 1.1; }
@media (prefers-reduced-motion: no-preference) {
  .rail > .stage { opacity: calc(0.55 + 0.45 * min(1, max(0, (var(--sc-p, 0) * 5 - var(--i, 0) + 1)))); }
}

/* ------------------------------------------------------------ why ----- */
.why { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--sc-8); align-items: center; }
.why__media { margin: 0; background: var(--white); border-radius: var(--r); padding: var(--sc-6); border: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }
.why__media svg { width: 100%; height: auto; max-height: 64vh; overflow: visible; }
.why__list { list-style: none; margin: var(--sc-6) 0 var(--sc-7); padding: 0; display: grid; gap: var(--sc-4); }
.why__list li { color: var(--sc-ink-soft); max-width: 52ch; padding-left: 1.8rem; position: relative; text-wrap: pretty; }
.why__list li::before { content: ""; position: absolute; left: 0; top: .2em; width: 1rem; height: 1.15rem; background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 16'><path d='M7 1l6 3.5L7 8 1 4.5z' fill='%235FE6D2'/><path d='M1 4.5L7 8v7l-6-3.5z' fill='%230B7F80'/><path d='M7 8l6-3.5v7L7 15z' fill='%2312B8A6'/></svg>") center/contain no-repeat; }
.why__list b { color: var(--sc-ink); font-weight: 600; }
.models { margin: 0; border-top: 1px solid var(--sc-ink); }
.models div { display: grid; grid-template-columns: 9rem 1fr; gap: var(--sc-4); padding: var(--sc-3) 0; border-bottom: 1px solid color-mix(in oklab, var(--navy) 14%, transparent); }
.models dt { font-weight: 600; }
.models dd { margin: 0; color: var(--sc-ink-soft); }

.card__media.has-photo::before { display: none; }
.card__media .photo { position: relative; width: 100%; height: 100%; object-fit: cover; }
.why__media.has-photo { padding: 0; overflow: hidden; aspect-ratio: 4 / 5; }
.why__media .photo { width: 100%; height: 100%; object-fit: cover; display: block; will-change: transform; }

/* ------------------------------------------------------------ tools --- */
.tools { background: var(--white); border-block: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); padding-block: var(--sc-6); }
.tools__inner { display: flex; align-items: center; gap: var(--sc-6); }
.tools__h { flex: none; margin: 0; font-family: var(--sc-font-mono); font-weight: 500; font-size: var(--sc-t-xs); letter-spacing: .08em; text-transform: uppercase; color: #0A6E65; }
.tools__track { flex: 1; min-width: 0; display: flex; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.tools__list { list-style: none; margin: 0; padding: 0 1.4rem 0 0; display: flex; flex-wrap: nowrap; gap: .5rem 1.4rem; flex: none; will-change: transform; }
.tools__list li { white-space: nowrap; }
.tools__list li { font-weight: 500; color: var(--sc-ink-soft); font-size: var(--sc-t-sm); }

/* ------------------------------------------------------------ faq ----- */
.faq { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--sc-8); align-items: start; }
.faq .head { position: sticky; top: calc(var(--nav-h) + 2rem); }
.faq__list details { border-bottom: 1px solid color-mix(in oklab, var(--navy) 14%, transparent); }
.faq__list details:first-child { border-top: 1px solid color-mix(in oklab, var(--navy) 14%, transparent); }
.faq__list summary { cursor: pointer; list-style: none; padding: var(--sc-5) 2.4rem var(--sc-5) 0; position: relative; font-weight: 500; font-size: var(--sc-t-lg); letter-spacing: -0.015em; }
.faq__list summary::-webkit-details-marker { display: none; }
.faq__list summary::after {
  content: ""; position: absolute; right: 0; top: 50%; width: 2rem; height: 2rem; margin-top: -1rem; border-radius: 6px;
  background: var(--white) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M4 6l4 4 4-4' fill='none' stroke='%230A6E65' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/1rem no-repeat;
  border: 1px solid color-mix(in oklab, var(--navy) 14%, transparent);
  box-shadow: 2px 2px 0 0 color-mix(in oklab, var(--navy) 14%, transparent);
  transition: transform 200ms var(--sc-ease-out), background-color 160ms var(--sc-ease-out);
}
.faq__list details[open] summary::after { transform: rotate(180deg); box-shadow: -2px -2px 0 0 color-mix(in oklab, var(--navy) 14%, transparent); }
.faq__list summary { padding-right: 3rem; }
@media (hover: hover) and (pointer: fine) { .faq__list summary:hover::after { background-color: #E6F6F3; } }
.faq__list summary:focus-visible { outline-offset: 6px; }
.faq__list details p { margin: 0 0 var(--sc-5); color: var(--sc-ink-soft); max-width: 60ch; }

/* ------------------------------------------------------------ contact -- */
.contact__grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: var(--sc-9); align-items: start; }
.contact__ways { list-style: none; margin: var(--sc-7) 0 0; padding: 0; display: grid; gap: var(--sc-4); }
.contact__ways li { display: grid; grid-template-columns: 6rem 1fr; gap: var(--sc-4); padding-top: var(--sc-4); border-top: 1px solid var(--sc-hairline-strong); }
.contact__ways li[hidden] { display: none; }
.contact__ways span { font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); letter-spacing: .06em; text-transform: uppercase; color: var(--sc-ink-soft); padding-top: .2em; }
.contact__ways a { color: var(--sc-ink); }
.brief-form { display: grid; gap: var(--sc-5); padding: var(--sc-7); border-radius: var(--r); background: var(--navy-2); box-shadow: var(--sc-edge), var(--sc-e3); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sc-5); }
.field { margin: 0; display: grid; gap: var(--sc-2); border: 0; padding: 0; min-width: 0; }
.field label, .field legend { font-size: var(--sc-t-sm); font-weight: 500; color: var(--sc-ink); padding: 0; }
.field legend { margin-bottom: var(--sc-3); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 2.9rem; background: color-mix(in oklab, var(--navy) 55%, transparent); color: var(--sc-ink);
  border: 1px solid color-mix(in oklab, var(--sc-ink) 22%, transparent); border-radius: 8px;
  padding: .6rem .8rem; font-size: var(--sc-t-base);
  transition: border-color 150ms var(--sc-ease-out), box-shadow 150ms var(--sc-ease-out);
}
.field textarea { resize: vertical; line-height: 1.55; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%); background-position: calc(100% - 16px) 55%, calc(100% - 11px) 55%; background-size: 5px 5px; background-repeat: no-repeat; }
.field select option { color: #0C1B36; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--sc-accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--sc-accent) 25%, transparent); }
.field textarea::placeholder { color: color-mix(in oklab, var(--sc-ink-soft) 80%, transparent); }
.checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sc-2) var(--sc-5); }
.checks label { display: flex; gap: .6rem; align-items: center; font-size: var(--sc-t-sm); font-weight: 400; cursor: pointer; min-height: 2rem; }
.checks input { width: 1.05rem; height: 1.05rem; }
.hp { position: absolute; left: -9999px; }
.brief-form__send { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sc-5); margin: var(--sc-2) 0 0; }
.brief-form__status { font-size: var(--sc-t-sm); color: var(--sc-ink-soft); }
.brief-form__status.is-ok { color: var(--sc-accent); }
.brief-form__status.is-err { color: #FFB4A8; }
.brief-form--done { min-height: 16rem; align-content: center; gap: var(--sc-3); outline: none; }
.brief-form__blocks { width: 86px; height: auto; overflow: visible; margin-bottom: var(--sc-3); }
.brief-form__blocks .drop { animation: drop 520ms cubic-bezier(.34, 1.4, .64, 1) both; }
@keyframes drop { from { transform: translateY(-34px); opacity: 0; } to { transform: none; opacity: 1; } }
.brief-form__done-h { margin: 0; font-size: var(--sc-t-2xl); font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; }
.brief-form__done-p { margin: 0; color: var(--sc-ink-soft); font-size: var(--sc-t-lg); }

/* ------------------------------------------------------------ footer --- */
.footer { background: #08132A; color: #A9B4C8; padding: var(--sc-9) 0 var(--sc-6); --sc-ink: #F3F1EB; --sc-accent: #3DD6C3; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: var(--sc-7); }
.footer .nav__brand { color: #F3F1EB; }
.footer__brand p:last-child { margin: var(--sc-4) 0 0; max-width: 32ch; font-size: var(--sc-t-sm); }
.footer h2 { margin: 0 0 var(--sc-4); font-family: var(--sc-font-mono); font-weight: 500; font-size: var(--sc-t-xs); letter-spacing: .08em; text-transform: uppercase; color: #3DD6C3; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sc-2); font-size: var(--sc-t-sm); }
.footer li[hidden] { display: none; }
.footer a { color: #D9DFEA; text-decoration: none; }
.footer a:hover { color: #F3F1EB; text-decoration: underline; }
.footer__small { margin-top: var(--sc-8); padding-top: var(--sc-5); border-top: 1px solid rgba(169, 180, 200, .18); font-size: var(--sc-t-xs); }

/* ------------------------------------------------------------ consent -- */
.consent {
  position: fixed; z-index: calc(var(--sc-z-chrome) + 5); right: 1rem; bottom: 1rem; max-width: 24rem;
  padding: var(--sc-5); border-radius: var(--r); background: var(--white); color: var(--navy);
  border: 1px solid color-mix(in oklab, var(--navy) 12%, transparent); box-shadow: var(--sc-e3);
  font-size: var(--sc-t-sm);
}
.consent p { margin: 0; }
.consent a { color: #0A6E65; }
.consent__actions { display: flex; gap: var(--sc-2); justify-content: flex-end; margin-top: var(--sc-4) !important; }
.footer__cookies { background: none; border: 0; padding: 0; color: #D9DFEA; font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: .2em; }
.footer__small a { color: #D9DFEA; }

/* ---------------------------------------------------------- responsive -- */
@media (max-width: 1080px) {
  .nav__links { display: none; }
  .nav__links.is-open {
    display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0;
    padding: var(--sc-3) var(--sc-gutter) var(--sc-5); background: var(--paper);
    border-bottom: 1px solid color-mix(in oklab, var(--navy) 10%, transparent); box-shadow: var(--sc-e2);
  }
  .nav__links.is-open a { padding: .9rem .4rem; font-size: var(--sc-t-base); color: var(--sc-ink); border-bottom: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }
  .nav__burger { display: block; }
  .nav__actions { margin-left: auto; }
  .trust__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trust__list li:nth-child(3) { border-left: 0; }
  .trust__list li:nth-child(n+3) { border-top: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }
  .services { grid-template-columns: 1fr; gap: var(--sc-6); }
  .services__head { position: static; }
  .demo__panel { grid-template-columns: 1fr 1fr; }
  .demo__col--agent { grid-column: 1 / -1; grid-row: 2; border-left: 0 !important; border-top: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }
  .contact__grid, .faq { grid-template-columns: 1fr; gap: var(--sc-7); }
  .faq .head { position: static; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  :root { --nav-h: 60px; }
  .nav__actions .btn--ghost { display: none; }
  .nav__actions .btn { min-height: 2.5rem; padding: 0 .9rem; }
  .nav__inner { gap: var(--sc-3); }
  .nav__brand { font-size: .95rem; gap: .5rem; }
  .nav__brand img { width: 26px; height: 26px; }

  .hero__stage { grid-template-columns: 1fr; grid-template-rows: auto 1fr; align-items: start; gap: 0; padding-top: calc(var(--nav-h) + 1.25rem); padding-bottom: 1rem; }
  .badge { margin-bottom: var(--sc-4); }
  .hero__h1 { font-size: clamp(2.1rem, 1.1rem + 5.4vw, 3.2rem); }
  .hero__sub { font-size: var(--sc-t-base); margin-top: var(--sc-4); }
  .hero__actions { margin-top: var(--sc-5); }
  .hero__actions .btn--ghost { display: none; }
  .hero__art { height: 100%; min-height: 0; }
  .hero__svg .callouts { display: none; }
  .near--a { left: -4%; top: 30%; }
  .near--c { right: 4%; top: 0; }

  .trust__list li { padding: var(--sc-4) var(--sc-2); }
  .pains { grid-template-columns: 1fr; }
  .pains li:first-child { border-radius: var(--r) var(--r) 0 0; }
  .pains li:last-child { border-radius: 0 0 var(--r) var(--r); }
  .pains li + li { border-left: 0; border-top: 1px solid color-mix(in oklab, var(--sc-ink) 10%, transparent); }
  .head--split { grid-template-columns: 1fr; gap: 0; }
  .head--split .head__dek { justify-self: start; margin-top: var(--sc-4); }
  .card { grid-template-columns: 1fr; top: calc(var(--nav-h) + .75rem + var(--i) * 10px); min-height: 0; }
  .card__media { aspect-ratio: 16 / 9; min-height: 0; }
  .card__body { padding: var(--sc-5); }
  .demo__panel { grid-template-columns: 1fr; min-height: 0; }
  .demo__col + .demo__col { border-left: 0; border-top: 1px solid color-mix(in oklab, var(--navy) 8%, transparent); }
  .demo__col--agent { grid-row: auto; }
  .depts__grid { grid-template-columns: 1fr; }

  .builder { grid-template-columns: 1fr; gap: var(--sc-5); }
  .builder__plate {
    top: var(--nav-h); z-index: 5; margin-inline: calc(var(--sc-gutter) * -1);
    padding: .5rem var(--sc-gutter); background: var(--paper);
    border-bottom: 1px solid color-mix(in oklab, var(--navy) 12%, transparent);
    display: grid; grid-template-columns: 40% 1fr; gap: .75rem; align-items: center;
  }
  .plate--builder { padding: .25rem; background: none; box-shadow: none; border: 0; }
  .plate--builder svg { max-height: 24vh; }
  .builder__cap, #builder-svg .course-label { display: none; }
  .running { margin: 0; padding: .7rem .8rem; }
  .running__label { margin-bottom: .2rem; }
  .running__text { font-size: var(--sc-t-xs); line-height: 1.4; min-height: 0; max-height: 22vh; overflow: auto; }

  .why { grid-template-columns: 1fr; gap: var(--sc-6); }
  .tools__inner { flex-direction: column; align-items: stretch; gap: var(--sc-4); }
  .problems::before, .process::before, .contact::before, .problems::after, .process::after { height: 20px; }
  .problems::before, .process::before, .contact::before { top: -19px; }
  .problems::after, .process::after { bottom: -19px; }
  .field-row, .checks { grid-template-columns: 1fr; }
  .brief-form { padding: var(--sc-5); }
  .footer__grid { grid-template-columns: 1fr; gap: var(--sc-6); }
  .consent { left: .6rem; right: .6rem; bottom: .6rem; max-width: none; }
}

@media (max-width: 860px) and (max-height: 700px) { .hero__sub { display: none; } }

@media (prefers-reduced-motion: reduce) {
  .tools__track { -webkit-mask-image: none; mask-image: none; }
  .tools__list { flex-wrap: wrap; }
  .tools__list[aria-hidden] { display: none; }
  .process__course { opacity: 1; transform: none; transition: none; }
  .brief-form__blocks .drop { animation: none; }
  .card { position: relative; top: auto; }
  .hero__far, .hero__svg, .near { transform: none !important; }
  .rail > .stage { opacity: 1; }
  .demo__steps li.is-active::before { animation: none; }
}