/* ============================================================
   D SPOT — PAPER design system (redesign B, 2026-09-15)
   Full replacement for signal.css: same class names, light paper
   body, dark ink header/footer bands, same two self-hosted fonts.
   Also contains the landing-page components (former landing.css).
   Mobile-first; breakpoints 640 / 768 / 900 / 1024 as before.
   ============================================================ */

/* ---------- fonts ---------- */
@font-face { font-family: "Archivo"; src: url("fonts/archivo-var-latin.woff2") format("woff2"); font-weight: 400 900; font-stretch: 62% 125%; font-display: swap; unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2013-2014, U+2018-201A, U+201C-201E, U+2026, U+2212; }
@font-face { font-family: "Archivo"; src: url("fonts/archivo-var-latin-ext.woff2") format("woff2"); font-weight: 400 900; font-stretch: 62% 125%; font-display: swap; unicode-range: U+0100-02BA, U+1E00-1EFF, U+2113; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/jbmono-var-latin.woff2") format("woff2"); font-weight: 100 800; font-display: swap; unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2013-2014, U+2018-201A, U+201C-201E, U+2026, U+2212; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/jbmono-var-latin-ext.woff2") format("woff2"); font-weight: 100 800; font-display: swap; unicode-range: U+0100-02BA, U+1E00-1EFF, U+2113; }

/* ---------- tokens ---------- */
:root {
  --bg: #F6F4EF;            /* paper */
  --surface: #FFFFFF;
  --edge: #DDD8CE;
  --edge-strong: #C9C3B7;
  --txt: #15181C;
  --dim: #5B636C;           /* 5.5:1 on paper, 6.1:1 on white */
  --signal: #D92B21;        /* 4.9:1 on white */
  --signal-dark: #B5231B;
  --metric: #0E7A50;        /* 4.9:1 on paper */
  --viber: #6A3FE0;
  --ink: #15181C; --ink-txt: #E8ECEF; --ink-dim: #9AA3AD; --ink-edge: #2A3038; --ink-signal: #FF3B30; --ink-metric: #2BD98F;
  --display: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Courier New", monospace;
  --container: 1152px;
  --pad: 20px;
  --bar-h: 68px;
}

/* ---------- reset-lite & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background: var(--bg); color: var(--txt); font-family: var(--display); font-weight: 400; font-size: 1rem; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
ul, ol { list-style: none; }
h1, h2, h3 { hyphens: auto; overflow-wrap: break-word; }
strong, b { font-weight: 700; color: var(--txt); }

/* paper texture: faint grid in the hero area only */
.grid-backdrop::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .5; background-image: linear-gradient(var(--edge) 1px, transparent 1px), linear-gradient(90deg, var(--edge) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(ellipse at 30% 0%, black 0%, transparent 50%); -webkit-mask-image: radial-gradient(ellipse at 30% 0%, black 0%, transparent 50%); }
main, .site-footer { position: relative; z-index: 1; }

/* ---------- accessibility ---------- */
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--metric); color: #fff; padding: 10px 16px; border-radius: 6px; font-family: var(--mono); font-size: .8125rem; font-weight: 700; }
.skip-link:focus { left: var(--pad); }
:focus-visible { outline: 3px solid var(--metric); outline-offset: 2px; border-radius: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- layout ---------- */
.container { max-width: var(--container); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
.section { border-top: 1px solid var(--edge); padding: 48px 0; }
.section--flush { border-top: 0; }
.section--deep { padding: 64px 0; }
@media (min-width: 900px) { .section { padding: 64px 0; } .section--deep { padding: 80px 0; } }

/* ---------- type components ---------- */
.tag { font-family: var(--mono); font-size: .6875rem; letter-spacing: .08em; color: var(--signal); text-transform: uppercase; }
.tag--metric { color: var(--metric); }
.tag--dim { color: var(--dim); }
.mono { font-family: var(--mono); }
.dim { color: var(--dim); }
.small { font-size: .875rem; }
.footnote { font-family: var(--mono); font-size: .6875rem; color: var(--dim); margin-top: 16px; }
.footnote a { text-decoration: underline; text-underline-offset: 3px; }
.footnote a:hover { color: var(--txt); }

.title-xl, .title-lg, .title-md { font-family: var(--display); font-weight: 800; letter-spacing: -.02em; line-height: 1.06; }
.title-xl { font-size: clamp(1.9rem, 6.8vw, 3.6rem); margin-top: 12px; }
.title-lg, h2.t { font-size: clamp(1.5rem, 5.2vw, 2.4rem); margin-top: 10px; max-width: 30ch; font-family: var(--display); font-weight: 800; letter-spacing: -.02em; line-height: 1.1; }
.title-md { font-size: clamp(1.3rem, 4vw, 1.9rem); margin-top: 10px; max-width: 34ch; }
.accent { color: var(--signal); }
.lede { margin-top: 14px; max-width: 62ch; font-size: 1.0625rem; color: var(--dim); }
.sub { margin-top: 12px; max-width: 62ch; color: var(--dim); }
.breadcrumb { font-family: var(--mono); font-size: .6875rem; color: var(--dim); }
.breadcrumb a:hover { color: var(--txt); }
.breadcrumb .here { color: var(--metric); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 6px; text-decoration: none; font-family: var(--mono); font-size: .8125rem; font-weight: 700; letter-spacing: .04em; cursor: pointer; border: 1px solid transparent; text-align: center; }
.btn--primary { background: var(--signal); color: #fff; }
.btn--primary:hover { background: var(--signal-dark); color: #fff; }
.btn--primary[disabled] { opacity: .7; cursor: wait; }
.btn--ghost { border-color: var(--edge-strong); color: var(--txt); background: var(--surface); font-weight: 600; }
.btn--ghost:hover { border-color: var(--txt); }
.btn--sm { min-height: 40px; padding: 0 14px; font-size: .75rem; }
.btn--block { width: 100%; }
.actions { margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.actions .aside-note { font-family: var(--mono); font-size: .75rem; color: var(--dim); }
.actions .aside-note a { color: var(--txt); text-decoration: underline; }
.actions .aside-note a:hover { color: var(--metric); }
.link { font-family: var(--mono); font-size: .75rem; color: var(--signal); text-decoration: none; font-weight: 600; }
.link:hover { color: var(--txt); }

/* ---------- header / nav (dark ink band) ---------- */
.site-header, .lhdr { position: sticky; top: 0; z-index: 50; background: var(--ink); color: var(--ink-txt); }
.site-header .bar, .lhdr .bar { display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 12px; }
.brand { font-family: var(--display); font-weight: 900; letter-spacing: -.02em; font-size: 1.25rem; text-decoration: none; color: var(--ink-txt); display: inline-flex; align-items: center; min-height: 44px; }
.brand em { font-style: normal; color: var(--ink-signal); }
.status { display: none; font-family: var(--mono); font-size: .6875rem; color: var(--ink-dim); }
@media (min-width: 1024px) { .status { display: block; } }
.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--ink-metric); margin-right: 6px; animation: pulse 2.4s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1 } 50% { opacity: .35 } }
.nav { display: flex; align-items: center; gap: 20px; }
.nav a { font-family: var(--mono); font-size: .75rem; text-decoration: none; color: var(--ink-dim); min-height: 44px; display: inline-flex; align-items: center; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink-txt); }
.nav .lang { font-family: var(--mono); font-size: .75rem; color: var(--ink-dim); }
.nav .lang b { color: var(--ink-txt); font-weight: 500; }
.nav .lang a:hover { color: var(--ink-txt); }
.nav .btn--primary { background: #fff; color: var(--ink); }
.nav .btn--primary:hover { background: var(--ink-metric); color: var(--ink); }
.nav-toggle { display: none; background: none; cursor: pointer; border: 1px solid var(--ink-edge); border-radius: 6px; color: var(--ink-txt); font-family: var(--mono); font-size: .6875rem; min-height: 40px; padding: 0 12px; }
@media (max-width: 767px) {
  .nav { display: none; }
  .nav.nav-open { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; position: absolute; top: 56px; left: 0; right: 0; background: var(--ink); border-bottom: 1px solid var(--ink-edge); padding: 16px var(--pad) 20px; z-index: 60; }
  .nav.nav-open a, .nav.nav-open .lang { font-size: .875rem; }
  .nav-toggle { display: block; }
}
.hcall { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px; border-radius: 6px; font-family: var(--mono); font-size: .8125rem; font-weight: 700; text-decoration: none; color: var(--ink); background: #fff; }
.hcall .dot { margin: 0; animation: none; }

/* ---------- hero ---------- */
.hero { display: grid; gap: 32px; align-items: center; padding: 32px var(--pad) 40px; }
@media (min-width: 900px) { .hero { grid-template-columns: 1.05fr .95fr; gap: 48px; padding: 64px var(--pad) 56px; } }
.page-hero { padding: 32px var(--pad) 36px; }
@media (min-width: 900px) { .page-hero { padding: 56px var(--pad) 44px; } }

/* landing hero (it-partner B): head / form card / rest */
.hero-head, .hero-rest { min-width: 0; }
.strip { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; margin-top: 22px; font-family: var(--mono); font-size: .75rem; }
.strip div { border-left: 2px solid var(--metric); padding: 2px 0 2px 12px; }
.strip dt { color: var(--dim); }
.strip dd { margin-top: 2px; font-weight: 600; }
.hero-phone { margin-top: 22px; }
.hero-phone a { display: inline-block; font-family: var(--mono); font-weight: 700; font-size: clamp(1.6rem, 4vw, 2.4rem); letter-spacing: -.02em; line-height: 1.1; color: var(--txt); text-decoration: none; border-bottom: 3px solid var(--signal); }
.hero-phone a:hover { color: var(--metric); border-color: var(--metric); }
.hero-phone .hint { margin-top: 8px; font-family: var(--mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }
.chk-mini { display: none; }
@media (min-width: 900px) {
  .hero.hero--landing, section.hero:has(.formcard) { grid-template-columns: 1fr 440px; grid-template-rows: auto 1fr; column-gap: 56px; row-gap: 0; align-items: stretch; padding: 56px var(--pad) 48px; }
  .hero-head { grid-column: 1; grid-row: 1; }
  .hero-rest { grid-column: 1; grid-row: 2; display: flex; flex-direction: column; justify-content: space-between; gap: 24px; }
  .formcard { grid-column: 2; grid-row: 1 / span 2; margin-top: 0; position: sticky; top: 72px; align-self: start; }
  .strip { grid-template-columns: repeat(4, 1fr); }
  .chk-mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 0; }
  .chk-mini li { border: 1px solid var(--edge); background: var(--surface); border-radius: 8px; padding: 12px 14px; }
  .chk-mini .id { font-family: var(--mono); font-size: 1.125rem; font-weight: 700; color: var(--signal); }
  .chk-mini h3 { font-size: .9375rem; font-weight: 600; margin-top: 2px; }
  .chk-mini p { font-size: .8125rem; color: var(--dim); margin-top: 2px; }
}

/* ---------- diagram (home) ---------- */
.diagram { border: 1px solid var(--edge); background: var(--surface); border-radius: 10px; padding: 20px; }
.diagram figcaption { display: flex; justify-content: space-between; margin-bottom: 12px; font-family: var(--mono); font-size: .6875rem; color: var(--dim); }
.diagram svg { display: block; width: 100%; height: auto; }
.node { fill: var(--bg); stroke: var(--edge-strong); }
.node-label { font-family: var(--mono); font-size: 11px; fill: var(--txt); }
.node-sub { font-family: var(--mono); font-size: 8.5px; fill: var(--dim); }
.wire { stroke: var(--edge-strong); stroke-width: 1.5; fill: none; }
.wire--metric { stroke: var(--metric); }
.wire-live { stroke: var(--signal); stroke-width: 1.5; fill: none; stroke-dasharray: 6 5; animation: flow 1.2s linear infinite; }
.wire-live.wire-ok { stroke: var(--metric); }
@keyframes flow { to { stroke-dashoffset: -11; } }
.packet { fill: var(--signal); }
.packet-ok { fill: var(--metric); }
.log { margin-top: 16px; border-top: 1px solid var(--edge); padding-top: 12px; font-family: var(--mono); font-size: .6875rem; line-height: 1.9; color: var(--dim); white-space: nowrap; overflow: hidden; }
@media (max-width: 480px) { .log { white-space: normal; } }
.log .ok { color: var(--metric); }
.log .out { color: var(--signal); }
.log > div { opacity: 0; animation: logline .3s forwards; }
.log > div:nth-child(1) { animation-delay: .4s } .log > div:nth-child(2) { animation-delay: 1.1s } .log > div:nth-child(3) { animation-delay: 1.8s } .log > div:nth-child(4) { animation-delay: 2.5s }
@keyframes logline { to { opacity: 1 } }

/* ---------- client strip ---------- */
.clients { border-top: 1px solid var(--edge); border-bottom: 1px solid var(--edge); background: var(--surface); }
.clients .row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 10px; padding: 18px var(--pad); }
.clients .label { flex: 0 0 100%; font-family: var(--mono); font-size: .6875rem; letter-spacing: .08em; color: var(--dim); margin-bottom: 2px; }
.clients a { font-size: .8125rem; font-weight: 600; color: var(--txt); text-decoration: none; min-height: 40px; display: inline-flex; align-items: center; padding: 0 12px; border: 1px solid var(--edge); border-radius: 999px; background: var(--bg); }
.clients a:hover { border-color: var(--txt); }
@media (min-width: 900px) {
  .clients .row { gap: 12px 28px; padding: 16px var(--pad); }
  .clients .label { flex: 0 0 auto; margin: 0 8px 0 0; }
  .clients a { border: 0; background: none; padding: 0; min-height: 44px; font-size: .875rem; text-decoration: underline; text-decoration-color: var(--edge-strong); text-underline-offset: 4px; }
  .clients a:hover { color: var(--metric); text-decoration-color: var(--metric); }
}

/* ---------- grids & cards ---------- */
.grid { display: grid; gap: 12px; margin-top: 24px; }
@media (min-width: 640px) { .grid--2s { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .grid--2 { grid-template-columns: 1fr 1fr; } .grid--3 { grid-template-columns: repeat(3, 1fr); } .grid--4 { grid-template-columns: repeat(4, 1fr); } .grid--2s.grid--4 { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 640px) and (max-width: 899px) { .grid--3, .grid--4 { grid-template-columns: 1fr 1fr; } }
.card { border: 1px solid var(--edge); background: var(--surface); border-radius: 8px; padding: 18px; }
.card--hover { transition: border-color .2s; }
.card--hover:hover { border-color: var(--txt); }
.card--flow { display: flex; flex-direction: column; padding: 22px 20px; }
.card--flow .body { flex: 1; }
.card--open { border-style: dashed; background: transparent; }
.card .id { font-family: var(--mono); font-size: .6875rem; color: var(--metric); letter-spacing: .05em; font-weight: 700; }
.card .id--signal { color: var(--signal); }
.card h3 { font-family: var(--display); font-weight: 700; font-size: 1.0625rem; margin: 10px 0 6px; }
.card p { font-size: .9rem; color: var(--dim); }
.card .rule-top { border-top: 1px solid var(--edge); margin-top: 14px; padding-top: 12px; }
.card .io { font-family: var(--mono); font-size: .6875rem; color: var(--dim); border-top: 1px solid var(--edge); margin-top: 14px; padding-top: 12px; }
.card .io b { color: var(--txt); font-weight: 600; }
.card .link { display: inline-block; margin-top: 12px; }
.card .features { margin-top: 12px; border-top: 1px solid var(--edge); padding-top: 12px; font-family: var(--mono); font-size: .6875rem; line-height: 1.9; color: var(--dim); }

/* stat cards */
.stat { font-family: var(--mono); font-weight: 800; font-size: 2.1rem; color: var(--metric); letter-spacing: -.02em; line-height: 1.1; }
.stat--plain { color: var(--txt); font-size: 1.4rem; }
.stat-label { font-family: var(--mono); font-size: .6875rem; letter-spacing: .06em; color: var(--dim); margin-top: 5px; text-transform: uppercase; }
.stat-note { border-top: 1px solid var(--edge); margin-top: 12px; padding-top: 12px; font-size: .875rem; color: var(--dim); }
.stat-note b { color: var(--txt); font-weight: 600; }

/* meta dl */
.meta-grid { display: grid; gap: 10px 14px; grid-template-columns: 1fr 1fr; margin-top: 22px; font-family: var(--mono); font-size: .75rem; }
@media (min-width: 900px) { .meta-grid { grid-template-columns: repeat(4, 1fr); } }
.meta-grid > div { border-left: 2px solid var(--metric); padding: 2px 0 2px 12px; }
.meta-grid dt { color: var(--dim); }
.meta-grid dd { margin-top: 2px; color: var(--txt); font-weight: 600; }

/* ---------- service sections ---------- */
.svc-split { display: grid; gap: 28px; margin-top: 8px; }
@media (min-width: 1024px) { .svc-split { grid-template-columns: 1fr 340px; } }
.svc-split .aside { align-self: start; }
.feature-grid { display: grid; gap: 10px; margin-top: 20px; max-width: 44rem; }
@media (min-width: 640px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
.feature-grid li { border: 1px solid var(--edge); background: var(--surface); border-radius: 6px; padding: 12px 14px; font-size: .875rem; color: var(--dim); }
.feature-grid b { color: var(--txt); font-weight: 600; }
.mono-list { font-family: var(--mono); font-size: .75rem; line-height: 2.1; color: var(--dim); margin-top: 12px; }
.mono-list b { color: var(--txt); font-weight: 600; }

/* ---------- router ---------- */
.route { display: block; border: 1px solid var(--edge); background: var(--surface); border-radius: 8px; padding: 18px; text-decoration: none; transition: border-color .2s; margin-top: 12px; }
.route:hover { border-color: var(--txt); }
.route p { font-size: .9rem; color: var(--dim); }
.route .dest { font-family: var(--mono); font-size: .75rem; color: var(--metric); margin-top: 12px; font-weight: 700; }
.route--open { border-style: dashed; background: transparent; }
@media (min-width: 768px) { .route { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; } .route .dest { margin-top: 0; } }

/* ---------- phases ---------- */
.phase { display: grid; gap: 14px; border: 1px solid var(--edge); background: var(--surface); border-radius: 8px; padding: 20px; margin-top: 12px; }
@media (min-width: 900px) { .phase { grid-template-columns: 110px 1fr 240px; } }
.phase .when { font-family: var(--mono); font-size: .75rem; color: var(--signal); font-weight: 700; }
.phase h3 { font-family: var(--display); font-weight: 700; font-size: 1.0625rem; }
.phase .what { margin-top: 6px; font-size: .9rem; color: var(--dim); }
.phase .receive { font-family: var(--mono); font-size: .6875rem; line-height: 1.8; color: var(--dim); border-top: 1px solid var(--edge); padding-top: 12px; }
@media (min-width: 900px) { .phase .receive { border-top: 0; border-left: 1px solid var(--edge); padding: 0 0 0 20px; } }
.phase .receive span { color: var(--txt); }

/* ---------- quote ---------- */
.quote-card, .quote { border: 1px solid var(--edge); background: var(--surface); border-radius: 10px; padding: 22px; margin-top: 20px; }
.quote-card p, .quote p { font-size: 1.0625rem; line-height: 1.55; max-width: 80ch; }
.quote-card footer, .quote footer { margin-top: 12px; font-family: var(--mono); font-size: .75rem; color: var(--dim); }
.quote-card footer b, .quote footer b { color: var(--metric); font-weight: 600; }
.quote-card--sm { padding: 18px 20px; }
.quote-card--sm p { font-size: 1rem; }
@media (min-width: 900px) { .quote-card { padding: 32px 36px; } }

/* ---------- founder ---------- */
.founder { display: grid; gap: 18px; margin-top: 18px; align-items: start; grid-template-columns: 88px 1fr; }
@media (min-width: 768px) { .founder { grid-template-columns: 150px 1fr; gap: 32px; } }
@media (min-width: 768px) { .founder--lg { grid-template-columns: 220px 1fr; } }
.portrait { border-radius: 50%; overflow: hidden; background: var(--surface); aspect-ratio: 1 / 1; }
.founder > picture img, .portrait img { width: 100%; border-radius: 50%; aspect-ratio: 1 / 1; }
.founder .who { margin-top: 12px; font-family: var(--mono); font-size: .75rem; color: var(--dim); }
.founder .who a { color: var(--metric); text-decoration: none; }
.founder .copy p + p { margin-top: 14px; }
.founder .copy { color: var(--dim); max-width: 62ch; font-size: .95rem; }
.founder .copy b { color: var(--txt); }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; border-top: 1px solid var(--edge); margin-top: 16px; padding-top: 16px; font-family: var(--mono); font-size: .75rem; }
.facts dt { color: var(--dim); }
.facts dd { color: var(--txt); font-weight: 600; margin-top: 2px; }
.facts a { color: var(--metric); text-decoration: none; }
.facts a:hover { color: var(--txt); }

/* ---------- case (work page) ---------- */
.case-split { display: grid; gap: 28px; margin-top: 28px; }
@media (min-width: 1024px) { .case-split { grid-template-columns: 2fr 1fr; } }
.case-split .narrative p + p { margin-top: 16px; }
.case-split .narrative p { color: var(--dim); }
.case-split .aside { align-self: start; display: grid; gap: 12px; }
.case-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: baseline; }
.case-meta .mono, .case-meta a { font-family: var(--mono); font-size: .6875rem; color: var(--dim); }
.case-meta a { color: var(--txt); text-decoration: none; }
.case-meta a:hover { color: var(--metric); }

/* ---------- forms ---------- */
.field { margin-top: 12px; }
.field label { display: block; margin-bottom: 6px; font-family: var(--mono); font-size: .6875rem; letter-spacing: .05em; color: var(--dim); text-transform: uppercase; }
.field input, .field textarea { width: 100%; min-height: 48px; border: 1px solid var(--edge-strong); background: #fff; border-radius: 6px; color: var(--txt); font-family: var(--display); font-size: 1rem; padding: 12px 14px; }
.field textarea { min-height: 88px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #8A929B; }
.field input:focus, .field textarea:focus { outline: 2px solid var(--metric); outline-offset: 1px; border-color: var(--metric); }
.field .is-invalid { border-color: var(--signal); }
.field .err { display: none; margin-top: 6px; font-family: var(--mono); font-size: .6875rem; color: var(--signal); }
.field .is-invalid ~ .err { display: block; }
.form-note { margin-top: 10px; font-family: var(--mono); font-size: .6875rem; color: var(--dim); }
.form-note.ok { color: var(--metric); font-weight: 700; }
.form-note.err { color: var(--signal); font-weight: 700; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* form card (landing hero) */
.formcard { margin-top: 20px; background: var(--surface); border: 1px solid var(--edge); border-radius: 10px; padding: 18px; box-shadow: 0 8px 30px rgba(21, 24, 28, .06); scroll-margin-top: 72px; }
.formcard h2 { font-size: 1.125rem; font-weight: 700; margin-top: 6px; }
.formcard .why { margin-top: 4px; font-size: .875rem; color: var(--dim); }
.formcard .field textarea { min-height: 68px; }
.orcall { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--edge); display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-family: var(--mono); font-size: .75rem; }
.orcall--top { margin-top: 10px; padding-top: 0; border-top: 0; padding-bottom: 12px; border-bottom: 1px solid var(--edge); }
.orcall span { color: var(--dim); margin-right: 2px; }
.orcall a { text-decoration: none; font-weight: 700; min-height: 44px; display: inline-flex; align-items: center; padding: 0 12px; border: 1px solid var(--edge); border-radius: 6px; background: #fff; }

/* channels */
.channels { display: grid; gap: 10px; margin-top: 16px; }
@media (min-width: 640px) { .channels { grid-template-columns: 1fr 1fr; } }
.channels a { display: flex; align-items: center; min-height: 48px; border: 1px solid var(--edge); background: var(--surface); border-radius: 6px; padding: 0 16px; font-family: var(--mono); font-size: .8125rem; color: var(--txt); text-decoration: none; font-weight: 600; }
.channels a:hover { border-color: var(--txt); }
.contact-split { display: grid; gap: 36px; }
@media (min-width: 1024px) { .contact-split { grid-template-columns: 1fr 1fr; } }

/* ---------- footer (dark ink band) ---------- */
.site-footer { background: var(--ink); color: var(--ink-dim); margin-top: 24px; }
.site-footer .cols { display: grid; gap: 22px; padding: 36px var(--pad) 40px; font-family: var(--mono); font-size: .75rem; line-height: 1.9; }
@media (min-width: 640px) { .site-footer .cols { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .site-footer .cols { grid-template-columns: repeat(4, 1fr); } }
.site-footer b { display: block; color: var(--ink-txt); font-weight: 600; margin-bottom: 4px; letter-spacing: .06em; }
.site-footer a { text-decoration: none; color: var(--ink-txt); }
.site-footer a:hover { color: var(--ink-metric); }

/* ---------- motion ---------- */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .dot, .wire-live { animation: none; } .wire-live { stroke-dasharray: none; }
  .log > div { opacity: 1; animation: none; } .packet, .packet-ok { display: none; }
  .reveal { opacity: 1; transform: none; transition: none; } .callbar { transition: none; }
}

/* ---------- IT partner components ---------- */
.phone-hero { margin-top: 22px; }
.phone-hero a { display: inline-block; font-family: var(--mono); font-weight: 700; font-size: clamp(1.75rem, 5vw, 3rem); letter-spacing: -.02em; line-height: 1.1; color: var(--txt); text-decoration: none; border-bottom: 3px solid var(--signal); }
.phone-hero a:hover { color: var(--metric); border-color: var(--metric); }
.phone-hero .hint { margin-top: 8px; font-family: var(--mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }
.phone-big { display: inline-block; margin-top: 24px; font-family: var(--mono); font-weight: 700; font-size: clamp(2.25rem, 7vw, 4.5rem); letter-spacing: -.03em; line-height: 1; color: var(--txt); text-decoration: none; }
.pkg { display: flex; flex-direction: column; }
.pkg .for { margin-top: 4px; font-family: var(--mono); font-size: .6875rem; color: var(--dim); }
.pkg .price { margin-top: 14px; font-family: var(--mono); font-weight: 800; font-size: 1.6rem; line-height: 1.1; letter-spacing: -.02em; color: var(--metric); }
.pkg .price small { display: block; margin-top: 4px; font-family: var(--mono); font-weight: 400; font-size: .6875rem; letter-spacing: .06em; text-transform: uppercase; color: var(--dim); }
.pkg .features { flex: 1; }
.pkg .features li::before { content: "+ "; color: var(--metric); }
.pkg .sla { border-top: 1px solid var(--edge); margin-top: 14px; padding-top: 12px; font-family: var(--mono); font-size: .6875rem; color: var(--signal); }
.pkg .sla b { color: var(--txt); font-weight: 700; }
.readout { border: 1px solid var(--edge); background: var(--surface); border-radius: 8px; padding: 18px 20px; font-family: var(--mono); font-size: .75rem; line-height: 2; color: var(--dim); }
.readout .head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .6875rem; letter-spacing: .08em; color: var(--dim); border-bottom: 1px solid var(--edge); padding-bottom: 10px; margin-bottom: 10px; }
.readout ol { counter-reset: chk; display: grid; gap: 0 24px; filter: blur(3px); }
@media (min-width: 640px) { .readout ol { grid-template-columns: 1fr 1fr; } }
.readout li { counter-increment: chk; }
.readout li::before { content: "[" counter(chk, decimal-leading-zero) "] "; color: var(--metric); }
.readout .foot { border-top: 1px solid var(--edge); margin-top: 10px; padding-top: 10px; color: var(--txt); }

/* packages table + accordions (landing) */
.pkt-wrap { overflow-x: auto; margin-top: 20px; }
.pkt { width: 100%; border-collapse: collapse; font-size: .9375rem; background: var(--surface); border: 1px solid var(--edge); border-radius: 8px; overflow: hidden; }
.pkt th, .pkt td { text-align: left; padding: 14px 12px; border-top: 1px solid var(--edge); vertical-align: top; }
.pkt tbody tr:first-child th, .pkt tbody tr:first-child td { border-top: 0; }
.pkt th { font-family: var(--mono); font-size: .8125rem; font-weight: 700; }
.pkt th small { display: block; color: var(--dim); font-weight: 400; font-size: .75rem; margin-top: 2px; }
.pkt td.num { font-family: var(--mono); font-weight: 700; color: var(--metric); white-space: nowrap; }
.pkt td.num small { display: block; color: var(--dim); font-weight: 400; font-size: .6875rem; }
.pkt td.sla { font-family: var(--mono); font-size: .75rem; color: var(--dim); }
.pkt td.sla b { color: var(--txt); }
.pkx { margin-top: 12px; }
.pkx details { border: 1px solid var(--edge); background: var(--surface); border-radius: 8px; padding: 0 14px; margin-top: 8px; }
.pkx summary { cursor: pointer; list-style: none; min-height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-family: var(--mono); font-size: .8125rem; font-weight: 700; }
.pkx summary::-webkit-details-marker { display: none; }
.pkx summary::after { content: "+"; color: var(--metric); font-size: 1.25rem; }
.pkx details[open] summary::after { content: "–"; }
.pkx ul { padding: 0 0 12px; color: var(--dim); font-size: .9rem; }
.pkx li { padding: 4px 0 4px 14px; position: relative; }
.pkx li::before { content: "·"; position: absolute; left: 2px; color: var(--metric); }
.rules { display: grid; gap: 10px; margin-top: 16px; }
.rules div { padding: 14px 0; border-top: 1px solid var(--edge); }
.rules h3 { font-size: .95rem; }
.rules p { font-size: .875rem; color: var(--dim); margin-top: 4px; }
.steps { display: grid; gap: 12px; margin-top: 20px; }
.steps > li { background: var(--surface); border: 1px solid var(--edge); border-radius: 8px; padding: 16px; }
.steps .id { font-family: var(--mono); font-size: 1.25rem; font-weight: 700; color: var(--signal); }
.steps h3 { font-size: 1rem; margin-top: 4px; }
.steps p { color: var(--dim); font-size: .9rem; margin-top: 4px; }
.report { margin-top: 14px; background: var(--surface); border: 1px solid var(--edge); border-left: 4px solid var(--metric); border-radius: 8px; padding: 16px; }
.report p { margin-top: 6px; }
.report .note { font-family: var(--mono); font-size: .75rem; color: var(--metric); font-weight: 700; }
.since { display: grid; gap: 10px; margin-top: 16px; }
.since > li { padding: 12px 0; border-top: 1px solid var(--edge); }
.since .id { font-family: var(--mono); font-size: .6875rem; color: var(--signal); letter-spacing: .05em; font-weight: 700; }
.since p { font-size: .9rem; color: var(--dim); margin-top: 4px; }
.who { display: grid; gap: 10px; margin-top: 18px; }
.who > div { background: var(--surface); border: 1px solid var(--edge); border-radius: 8px; padding: 14px; }
.who .id { font-family: var(--mono); font-size: .6875rem; color: var(--metric); letter-spacing: .05em; font-weight: 700; }
.who p { font-size: .9rem; color: var(--dim); margin-top: 6px; }
.who .more { display: inline-block; margin-top: 8px; font-family: var(--mono); font-size: .75rem; color: var(--txt); font-weight: 600; }
@media (min-width: 640px) { .steps, .since, .rules, .who { grid-template-columns: repeat(3, 1fr); } }

/* FAQ: dl variant (old it-partner + sub-pages) and details variant (landing) */
.faq { margin-top: 14px; }
.faq > div { padding: 14px 0; border-top: 1px solid var(--edge); }
.faq dt h3 { font-family: var(--display); font-size: 1rem; font-weight: 600; margin: 0; }
.faq dd { margin: 8px 0 0; max-width: 62ch; color: var(--dim); font-size: .95rem; line-height: 1.6; }
@media (min-width: 900px) { .faq > div { display: grid; grid-template-columns: 1fr 1.4fr; gap: 32px; } .faq dd { margin-top: 0; } }
.faq details { border-top: 1px solid var(--edge); padding: 12px 0; }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; min-height: 44px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--signal); font-size: 1.25rem; flex: none; }
.faq details[open] summary::after { content: "–"; }
.faq details h3 { font-size: 1rem; font-weight: 600; }
.faq details p { margin-top: 8px; color: var(--dim); font-size: .95rem; max-width: 62ch; }

/* sticky action bar (mobile only): 1 or 2 links. Hidden while a form card is on screen or focused (signal.js). */
.callbar { display: none; }
@media (max-width: 899px) {
  .callbar { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 8px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; padding: 10px var(--pad) calc(10px + env(safe-area-inset-bottom)); background: rgba(246, 244, 239, .96); border-top: 1px solid var(--edge); backdrop-filter: blur(8px); transition: transform .2s ease; }
  .callbar a { display: flex; align-items: center; justify-content: center; min-height: 46px; border-radius: 6px; font-family: var(--mono); font-size: .75rem; font-weight: 700; text-decoration: none; letter-spacing: .04em; background: var(--ink); color: #fff; }
  .callbar .c2 { background: var(--viber); }
  body:has(.callbar) .site-footer { padding-bottom: calc(var(--bar-h) + env(safe-area-inset-bottom)); }
  body.form-in-view .callbar { transform: translateY(120%); }
}

/* ---------- long-form + misc ---------- */
.prose { max-width: 68ch; margin-top: 20px; }
.prose p { margin: 0 0 16px; line-height: 1.65; color: var(--txt); }
.prose p:last-child { margin-bottom: 0; }
.prose ul { margin: 0 0 16px; padding-left: 20px; line-height: 1.6; list-style: disc; }
.draft-banner { position: sticky; top: 56px; z-index: 49; padding: 8px var(--pad); background: var(--signal); color: #fff; font-family: var(--mono); font-size: .75rem; letter-spacing: .04em; text-align: center; }
.timeline { margin: 24px 0 0; padding: 0; border-left: 1px solid var(--edge-strong); }
.timeline li { position: relative; padding: 0 0 20px 22px; }
.timeline li::before { content: ""; position: absolute; left: -5px; top: 8px; width: 9px; height: 9px; border-radius: 50%; background: var(--metric); }
.timeline .id { margin-bottom: 4px; font-family: var(--mono); font-size: .6875rem; color: var(--signal); font-weight: 700; letter-spacing: .05em; }
.thanks { padding: 40px 0 56px; }
.thanks .big { font-family: var(--mono); font-size: 1rem; color: var(--metric); font-weight: 700; }
.thanks ol { margin: 18px 0 0 20px; color: var(--dim); list-style: decimal; }
.thanks li { margin-top: 8px; }