/* ============================================================
   vrogov.dev — design tokens
   Palette: pure black/white/grey, no color accents.
   Type:    IBM Plex Mono (technical voice) + IBM Plex Sans (body)
   Motif:   payment-terminal transaction receipt / spec sheet
   ============================================================ */

@font-face {
  font-family: 'Plex Mono';
  src: url('/fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plex Mono';
  src: url('/fonts/ibm-plex-mono-cyrillic-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap; unicode-range: U+0400-04FF;
}
@font-face {
  font-family: 'Plex Mono';
  src: url('/fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plex Mono';
  src: url('/fonts/ibm-plex-mono-cyrillic-500-normal.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap; unicode-range: U+0400-04FF;
}
@font-face {
  font-family: 'Plex Mono';
  src: url('/fonts/ibm-plex-mono-latin-600-normal.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plex Mono';
  src: url('/fonts/ibm-plex-mono-cyrillic-600-normal.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap; unicode-range: U+0400-04FF;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-cyrillic-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap; unicode-range: U+0400-04FF;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-latin-500-normal.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-cyrillic-500-normal.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap; unicode-range: U+0400-04FF;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-cyrillic-600-normal.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap; unicode-range: U+0400-04FF;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-latin-700-normal.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plex Sans';
  src: url('/fonts/ibm-plex-sans-cyrillic-700-normal.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap; unicode-range: U+0400-04FF;
}

:root {
  --ink: #0a0a0a;
  --paper: #ffffff;
  --grey-1: #4a4a4a;
  --grey-2: #8a8a8a;
  --hairline: #dfdfdc;
  --mono: 'Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans: 'Plex Sans', -apple-system, sans-serif;
  --maxw: 880px;
  --pad: 24px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  font-size: 16px;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }

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

/* ── focus visibility (accessibility floor) ────────────────── */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ── NAV ──────────────────────────────────────────────────── */
.nav {
  border-bottom: 1px solid var(--ink);
  padding: 16px 0;
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; }
.nav-mark {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-lang {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--grey-2);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.nav-lang.active { color: var(--ink); border-color: var(--ink); }
.nav-lang:not(.active):hover { color: var(--ink); }
.nav-li {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 5px 11px;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-li:hover { background: var(--ink); color: var(--paper); }

/* ── HERO / STATUS BLOCK (signature element) ─────────────── */
.hero { padding: 56px 0 48px; }
.statusblock {
  border: 1px solid var(--ink);
  padding: 16px 20px;
  margin-bottom: 40px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.9;
  letter-spacing: 0.02em;
}
.statusblock .row { display: flex; gap: 10px; }
.statusblock .k { color: var(--grey-2); width: 78px; flex-shrink: 0; }
.statusblock .v { font-weight: 600; }
.cursor {
  display: inline-block;
  width: 7px; height: 13px;
  background: var(--ink);
  margin-left: 6px;
  vertical-align: -2px;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero h1 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(34px, 5.2vw, 52px);
  letter-spacing: -0.01em;
  line-height: 1.05;
}
.hero .role {
  font-family: var(--mono);
  font-size: 15px;
  margin-top: 10px;
  color: var(--grey-1);
}
.hero .intro {
  font-size: 17px;
  color: var(--grey-1);
  max-width: 640px;
  margin-top: 20px;
  line-height: 1.55;
}
.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  font-family: var(--mono);
  font-size: 13.5px;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: var(--paper);
  background: var(--ink);
  padding: 13px 22px;
  transition: opacity 0.15s ease;
}
.cta:hover { opacity: 0.75; }
.cta svg { width: 13px; height: 13px; }

.email-line {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--grey-2);
}
.email-line .email-label { margin-right: 6px; }
.email-slot {
  display: inline-block;
  letter-spacing: 0.12em;
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 0.9; } }
.email-link {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--hairline);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.15s ease;
}
.email-link:hover { text-decoration-color: var(--ink); }

.footer-email {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--grey-2);
}
.footer-email .email-slot { letter-spacing: 0.12em; }
.footer-email .email-link { color: var(--grey-1); }

/* ── SECTIONS ─────────────────────────────────────────────── */
section { padding: 48px 0; border-top: 1px solid var(--hairline); }
.seclabel {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.secnote {
  font-family: var(--sans);
  font-style: italic;
  font-size: 13.5px;
  color: var(--grey-2);
  margin-bottom: 24px;
  margin-top: -8px;
}

/* ── EXPERTISE GRID ───────────────────────────────────────── */
.expgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--hairline);
}
.expcard {
  padding: 24px 28px 24px 0;
  border-bottom: 1px solid var(--hairline);
}
.expgrid .expcard:nth-child(odd) {
  padding-right: 28px;
  border-right: 1px solid var(--hairline);
}
.expgrid .expcard:nth-child(even) { padding-left: 28px; }
.expcard h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 8px;
}
.expcard p {
  font-size: 14.5px;
  color: var(--grey-1);
  line-height: 1.5;
}

/* ── ENGAGEMENT ROWS ──────────────────────────────────────── */
.engrow {
  display: grid;
  grid-template-columns: 200px 1fr 170px;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--hairline);
  align-items: start;
}
.engrow:first-of-type { border-top: 1px solid var(--hairline); }
.engrow .name { font-weight: 600; font-size: 15.5px; }
.engrow .desc { font-size: 14.5px; color: var(--grey-1); line-height: 1.5; }
.engrow .price-wrap { text-align: right; }
.engrow .price { font-family: var(--mono); font-weight: 600; font-size: 15px; }
.engrow .meta { font-family: var(--mono); font-size: 11px; color: var(--grey-2); margin-top: 4px; letter-spacing: 0.02em; }

/* ── PROCESS STEPS ────────────────────────────────────────── */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.step .num { font-family: var(--mono); font-weight: 600; font-size: 13px; color: var(--grey-2); }
.step h4 { font-weight: 600; font-size: 15px; margin: 8px 0 4px; }
.step p { font-size: 13.5px; color: var(--grey-1); line-height: 1.45; }

/* ── FIT / NOT FIT ────────────────────────────────────────── */
.fitgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.fitcol h4 {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.fitcol ul { list-style: none; }
.fitcol li {
  font-size: 14.5px;
  color: var(--grey-1);
  line-height: 1.5;
  margin-bottom: 12px;
  padding-left: 20px;
  position: relative;
}
.fitcol.yes li::before {
  content: "+"; position: absolute; left: 0; font-family: var(--mono); font-weight: 600; color: var(--ink);
}
.fitcol.no li::before {
  content: "–"; position: absolute; left: 0; font-family: var(--mono); font-weight: 600; color: var(--grey-2);
}

/* ── FOOTER ───────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--ink);
  padding: 40px 0 56px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--grey-2);
  letter-spacing: 0.03em;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 700px) {
  .hero { padding: 40px 0 36px; }
  .expgrid { grid-template-columns: 1fr; }
  .expgrid .expcard:nth-child(odd) { padding-right: 0; border-right: none; }
  .expgrid .expcard:nth-child(even) { padding-left: 0; }
  .engrow { grid-template-columns: 1fr; gap: 8px; }
  .engrow .price-wrap { text-align: left; margin-top: 4px; }
  .steps { grid-template-columns: 1fr 1fr; gap: 24px 20px; }
  .fitgrid { grid-template-columns: 1fr; gap: 28px; }
  .nav-right { gap: 12px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}