@font-face {
  font-family: "Archivo";
  src: url("/assets/fonts/archivo-latin-wdth-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Archivo";
  src: url("/assets/fonts/archivo-latin-wdth-italic.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-style: italic;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #EEF3F5;      /* chart paper */
  --paper-2: #E2EBEF;
  --sheet: #FBFCFD;
  --ink: #0E2A47;        /* deep water */
  --ink-2: #3D5670;
  --contour: #8FB0C3;
  --magenta: #A3176F;    /* chart magenta */
  --sand: #E7DEC8;
  --pine: #0F2E22;       /* Vitalyn */
  --pine-2: #17402F;
  --leaf: #1F7A56;
  --haldi: #E3A913;
  --vpaper: #F5F7F3;
  --gutter: clamp(20px, 5vw, 72px);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Archivo", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}
img, svg, canvas { display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--magenta); outline-offset: 3px; border-radius: 2px; }
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: #fff; padding: 10px 14px; z-index: 50; }
.skip:focus { left: 12px; top: 12px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* Header */
.site-head {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.site-head.scrolled { border-bottom-color: color-mix(in srgb, var(--contour) 55%, transparent); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 700; font-stretch: 112%; letter-spacing: -0.01em; font-size: 1.12rem; }
.brand svg { width: 30px; height: 30px; }
.brand .needle { transform-origin: 16px 16px; transition: transform .6s cubic-bezier(.2,.8,.2,1); }
.nav { display: flex; gap: clamp(14px, 3vw, 34px); }
.nav a { text-decoration: none; font-size: .98rem; color: var(--ink-2); padding: 6px 0; }
.nav a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 6px; text-decoration-color: var(--magenta); }

/* Hero */
.hero { position: relative; min-height: min(86vh, 820px); display: flex; align-items: center; overflow: hidden; border-bottom: 1px solid var(--paper-2); }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero .wrap { position: relative; width: 100%; padding-top: 56px; padding-bottom: 96px; pointer-events: none; }
.hero .wrap > * { pointer-events: auto; }
.hero h1 {
  margin: 0; max-width: 12.5ch;
  font-size: clamp(2.7rem, 6.4vw, 5.2rem);
  line-height: .98; font-weight: 800; font-stretch: 125%; letter-spacing: -0.03em;
}
.hero .lede { max-width: 34rem; margin: 28px 0 0; font-size: clamp(1.06rem, 1.5vw, 1.2rem); color: var(--ink-2); }
.hero .actions { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; margin-top: 34px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--ink); color: var(--sheet); text-decoration: none;
  padding: 14px 22px; border-radius: 999px; font-weight: 600; font-stretch: 108%;
}
.btn:hover { background: #163A60; }
.textlink { color: var(--ink); font-weight: 600; text-decoration: underline; text-underline-offset: 5px; text-decoration-color: var(--magenta); text-decoration-thickness: 2px; }
.readout {
  position: absolute; right: var(--gutter); bottom: 26px;
  display: flex; align-items: baseline; gap: 10px; color: var(--magenta);
  pointer-events: none;
}
.readout i { font-size: .95rem; color: var(--ink-2); }
.readout b { font-size: 1.7rem; font-weight: 700; font-stretch: 118%; letter-spacing: -0.01em; }

/* Sections */
section.block { padding: clamp(72px, 10vw, 128px) 0; }
.block h2 { margin: 0 0 14px; font-size: clamp(1.9rem, 3.6vw, 2.8rem); line-height: 1.05; font-weight: 750; font-stretch: 118%; letter-spacing: -0.02em; }
.block .intro { margin: 0 0 44px; max-width: 38rem; color: var(--ink-2); }

/* Product */
.product {
  background: var(--pine); color: var(--vpaper); border-radius: 28px;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 5vw, 72px);
  padding: clamp(28px, 5vw, 64px);
}
.vbrand { display: flex; align-items: center; gap: 14px; font-size: 1.6rem; font-weight: 700; font-stretch: 105%; }
.vbrand .mark { width: 46px; height: 46px; border-radius: 13px; background: var(--leaf); display: grid; place-items: center; }
.vbrand .mark span { width: 24px; height: 24px; border-radius: 50%; border: 4px solid var(--haldi); }
.product h3 { margin: 28px 0 14px; font-size: clamp(1.6rem, 3vw, 2.3rem); line-height: 1.08; font-weight: 750; font-stretch: 112%; letter-spacing: -0.02em; }
.product p { margin: 0 0 16px; color: #CBD8D0; max-width: 32rem; }
.product .status { color: var(--haldi); font-style: italic; }
.vlink { display: inline-flex; margin-top: 12px; background: var(--vpaper); color: var(--pine); text-decoration: none; padding: 13px 22px; border-radius: 999px; font-weight: 650; }
.vlink:hover { background: #fff; }

.demo { background: var(--pine-2); border-radius: 22px; padding: clamp(22px, 3vw, 32px); align-self: start; }
.demo h4 { margin: 0; font-size: 1.3rem; font-weight: 700; }
.demo .sub { margin: 4px 0 18px; color: #9FB8AA; font-size: .95rem; }
.demo fieldset { border: 0; margin: 0 0 16px; padding: 0; }
.demo legend { padding: 0; margin-bottom: 9px; color: #B9CCC1; font-size: .95rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: inherit; font-size: .95rem; cursor: pointer;
  background: transparent; color: var(--vpaper);
  border: 1px solid #3E6352; border-radius: 999px; padding: 8px 15px;
}
.chip:hover { border-color: #7FA392; }
.chip[aria-pressed="true"] { background: var(--vpaper); color: var(--pine); border-color: var(--vpaper); font-weight: 600; }
.result { border-top: 1px solid #335845; margin-top: 8px; padding-top: 18px; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.result output { font-size: clamp(1.7rem, 3.4vw, 2.3rem); font-weight: 750; font-stretch: 110%; letter-spacing: -0.02em; }
.result .was { color: #9FB8AA; font-size: .95rem; }
.result .conf { width: 100%; color: var(--haldi); font-size: .95rem; margin: 2px 0 0; }
.demo .note { margin: 14px 0 0; font-size: .85rem; color: #8FA99B; font-style: italic; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 56px); margin: 0; }
.principles div { border-top: 2px solid var(--ink); padding-top: 20px; }
.principles dt { font-size: 1.3rem; font-weight: 700; font-stretch: 112%; letter-spacing: -0.01em; margin-bottom: 10px; }
.principles dd { margin: 0; color: var(--ink-2); }

/* Company title block */
.company { background: var(--paper-2); }
.titleblock {
  background: var(--sheet);
  border: 1px solid var(--ink); outline: 1px solid var(--ink); outline-offset: 5px;
  margin: 6px; max-width: 900px;
}
.titleblock header { padding: 26px 30px 22px; border-bottom: 1px solid var(--ink); display: flex; gap: 22px; align-items: center; }
.titleblock header svg { width: 54px; height: 54px; flex: none; }
.titleblock header p { margin: 0; }
.titleblock .legal { font-size: clamp(1.25rem, 2.4vw, 1.6rem); font-weight: 750; font-stretch: 110%; line-height: 1.2; }
.titleblock .legal-sub { color: var(--ink-2); font-style: italic; }
.titleblock dl { margin: 0; display: grid; grid-template-columns: 220px 1fr; }
.titleblock dl > div { display: contents; }
.titleblock dt, .titleblock dd { padding: 15px 30px; border-bottom: 1px solid var(--paper-2); margin: 0; }
.titleblock dt { color: var(--ink-2); font-style: italic; }
.titleblock dd { font-weight: 550; }
.titleblock dl > div:last-child dt, .titleblock dl > div:last-child dd { border-bottom: 0; }
.todo { background: #FCE9F3; color: var(--magenta); padding: 2px 6px; border-radius: 4px; font-weight: 600; }

/* Contact */
.contacts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contacts a {
  display: block; text-decoration: none; padding: 24px 0 0; border-top: 1px solid var(--contour);
}
.contacts span { display: block; color: var(--ink-2); font-size: .95rem; margin-bottom: 6px; }
.contacts strong { font-size: clamp(1.02rem, 1.7vw, 1.2rem); font-weight: 650; text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 5px; word-break: break-word; }
.contacts a:hover strong { text-decoration-color: var(--magenta); }

/* Footer */
.site-foot { border-top: 1px solid var(--paper-2); padding: 34px 0 44px; color: var(--ink-2); font-size: .92rem; }
.site-foot .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px 30px; }
.site-foot p { margin: 0; }

/* 404 */
.lost { min-height: 70vh; display: flex; align-items: center; }
.lost h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); line-height: 1; font-weight: 800; font-stretch: 125%; letter-spacing: -0.03em; margin: 0 0 18px; }

@media (max-width: 900px) {
  .product { grid-template-columns: 1fr; }
  .principles, .contacts { grid-template-columns: 1fr; }
  .titleblock dl { grid-template-columns: 1fr; }
  .titleblock dt { border-bottom: 0; padding-bottom: 2px; }
  .titleblock dd { padding-top: 0; }
}
@media (max-width: 560px) {
  .nav a:not(.keep) { display: none; }
  .hero { min-height: 720px; align-items: flex-start; }
  .readout { display: none; }
  .hero .wrap { padding-top: 40px; }
  .titleblock header { padding: 20px; }
  .titleblock dt, .titleblock dd { padding-left: 20px; padding-right: 20px; }
}