/* Nashki Corp — company profile
   Single stylesheet. No external fonts or frameworks: the page renders with
   system faces so there are no third-party requests and nothing to keep up to
   date. Layout is mobile-first; the two-column grid appears at 900px. */

/* ---------- tokens ---------- */

:root {
  --ink:        #16191d;
  --ink-soft:   #39414a;
  --muted:      #6c757e;
  --rule:       #e3e6e9;
  --rule-soft:  #eef0f2;
  --bg:         #ffffff;
  --bg-alt:     #f6f7f8;
  --accent:     #16456b;
  --accent-dk:  #0e2f4a;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", sans-serif;
  --serif: ui-serif, Georgia, "Iowan Old Style", "Times New Roman", serif;

  --wrap: 1120px;
  --gutter: 1.5rem;

  --step-0: 1rem;
  --step-1: 1.0625rem;
  --step-2: clamp(1.25rem, 0.9rem + 1.1vw, 1.5rem);
  --step-3: clamp(1.5rem, 1.1rem + 1.6vw, 2rem);
  --step-4: clamp(2rem, 1.3rem + 3vw, 3.25rem);
}

/* ---------- reset ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-1);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.012em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--accent-dk); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 0.7rem 1rem;
  text-decoration: none;
}
.skip:focus { left: 0; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--rule);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 1.0625rem;
}

.wordmark-mark {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1;
  border-radius: 3px;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.9375rem;
  padding-block: 0.4rem;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* mobile nav toggle */

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg);
  cursor: pointer;
}

.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  display: block;
  width: 1rem;
  height: 1.5px;
  margin-inline: auto;
  background: var(--ink);
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: relative;
}
.nav-toggle-bars::before { top: -5px; }
.nav-toggle-bars::after  { top: 3.5px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after  { transform: translateY(-3.5px) rotate(-45deg); }

/* ---------- intro ---------- */

.intro {
  padding-block: clamp(3.5rem, 2rem + 7vw, 7.5rem) clamp(3rem, 2rem + 5vw, 6rem);
  border-bottom: 1px solid var(--rule);
}

.eyebrow {
  margin: 0 0 1.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.intro h1 {
  font-size: var(--step-4);
  max-width: 17ch;
  margin-bottom: 1.5rem;
}

.lede {
  max-width: 58ch;
  font-size: var(--step-2);
  line-height: 1.55;
  color: var(--ink-soft);
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.75rem;
  margin-top: 2.25rem;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.7rem 1.4rem;
  border-radius: 3px;
  transition: background-color 0.15s ease;
}
.btn:hover { background: var(--accent-dk); color: #fff; }

.link-arrow {
  font-size: 0.9375rem;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
}
.link-arrow::after { content: " \2192"; }
.link-arrow:hover { border-bottom-color: var(--accent); }

/* ---------- sections ---------- */

.section {
  padding-block: clamp(3rem, 2rem + 5vw, 5.5rem);
  border-bottom: 1px solid var(--rule);
}

.section-alt { background: var(--bg-alt); }

.grid-2 {
  display: grid;
  gap: 2rem;
}

.col-label h2 {
  font-size: var(--step-3);
}

.col-note {
  margin-top: 0.9rem;
  font-size: 0.9375rem;
  color: var(--muted);
  max-width: 32ch;
}

.col-body { max-width: 62ch; }

.lead-para {
  font-size: var(--step-2);
  line-height: 1.55;
  color: var(--ink);
}

.col-body p { color: var(--ink-soft); }
.col-body p.lead-para { color: var(--ink); }

/* ---------- capabilities ---------- */

.capabilities {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: cap;
}

.capabilities > li {
  counter-increment: cap;
  padding-block: 1.75rem;
  border-top: 1px solid var(--rule);
}

.capabilities > li:first-child { border-top: 0; padding-top: 0; }
.capabilities > li:last-child { padding-bottom: 0; }

.capabilities h3 {
  font-size: var(--step-1);
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: 0;
  margin-bottom: 0.5rem;
}

.capabilities h3::before {
  content: counter(cap, decimal-leading-zero);
  display: inline-block;
  min-width: 2.5rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.capabilities p {
  margin: 0;
  padding-left: 2.5rem;
  color: var(--ink-soft);
}

/* ---------- principles ---------- */

.principles {
  margin: 0;
  display: grid;
  gap: 1.75rem;
}

.principles > div {
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.principles > div:first-child { padding-top: 0; border-top: 0; }

.principles dt {
  font-weight: 600;
  font-size: var(--step-1);
  margin-bottom: 0.4rem;
}

.principles dd {
  margin: 0;
  color: var(--ink-soft);
}

/* ---------- contact ---------- */

.contact-list {
  list-style: none;
  margin: 2rem 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.contact-list li {
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}
.contact-list li:first-child { padding-top: 0; border-top: 0; }

.contact-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.contact-list a {
  font-size: var(--step-2);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  overflow-wrap: anywhere;
}
.contact-list a:hover { border-bottom-color: var(--accent); }

.fineprint {
  font-size: 0.9375rem;
  color: var(--muted);
}

/* ---------- footer ---------- */

.site-footer {
  padding-block: 2.5rem;
  font-size: 0.9375rem;
}

.footer-inner {
  display: grid;
  gap: 1.25rem;
}

.footer-mark {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer nav a {
  color: var(--ink-soft);
  text-decoration: none;
}
.site-footer nav a:hover { color: var(--accent); }

.footer-legal {
  margin: 0;
  color: var(--muted);
}

/* ---------- breakpoints ---------- */

@media (max-width: 767px) {
  .nav-toggle { display: block; }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    box-shadow: 0 12px 24px -18px rgba(0, 0, 0, 0.35);
  }

  .site-nav.is-open { display: block; }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem var(--gutter) 1rem;
  }

  .site-nav li + li { border-top: 1px solid var(--rule-soft); }

  .site-nav a {
    display: block;
    padding-block: 0.85rem;
    border-bottom: 0;
    font-size: 1rem;
  }

  .site-nav a[aria-current="true"] { color: var(--accent); }

  .header-inner { position: relative; }

  .btn, .link-arrow { width: 100%; text-align: center; }
  .link-arrow { padding-block: 0.7rem; border: 1px solid var(--rule); border-radius: 3px; }
}

@media (min-width: 900px) {
  .grid-2 {
    grid-template-columns: minmax(12rem, 18rem) minmax(0, 1fr);
    gap: 3rem 5rem;
  }

  .col-label {
    position: sticky;
    top: 6.5rem;
    align-self: start;
  }

  .footer-inner {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 2rem;
  }

  .site-footer nav ul { justify-content: center; }
  .footer-legal { text-align: right; }
}

@media print {
  .site-header, .nav-toggle, .intro-actions, .site-footer nav { display: none; }
  body { font-size: 11pt; }
  .section, .intro { border: 0; padding-block: 1rem; }
  .section-alt { background: none; }
}