/* ============================================================
   Tekari LLC — monochrome / precision-instrument theme
   ============================================================ */

:root {
  --bg:          #08090b;
  --bg-elev:     #0d0f12;
  --bg-card:     #0b0d10;
  --text:        #e9ebee;
  --text-dim:    #989ea7;
  --text-faint:  #5a616b;
  --line:        rgba(233, 235, 238, 0.10);
  --line-strong: rgba(233, 235, 238, 0.20);
  --glow:        rgba(255, 255, 255, 0.55);

  --font-display: "Chakra Petch", system-ui, sans-serif;
  --font-body:    "Hanken Grotesk", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;

  --maxw: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Fixed atmosphere layers: hairline grid + drifting radial glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 35%, transparent 78%);
          mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 35%, transparent 78%);
  opacity: 0.6;
}
body::after {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: -3;
  background: radial-gradient(40% 35% at 50% 8%, rgba(255,255,255,0.07), transparent 70%);
  animation: drift 22s var(--ease) infinite alternate;
}
@keyframes drift {
  from { transform: translate3d(-4%, -2%, 0); }
  to   { transform: translate3d(4%, 3%, 0); }
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(4rem, 10vw, 8rem); position: relative; }

.kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-faint);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.kicker::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--line-strong);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-faint);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 0;
}

.lead { color: var(--text-dim); font-size: clamp(1.02rem, 1.4vw, 1.18rem); max-width: 56ch; }

/* ---------- top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: inline-flex; align-items: baseline; gap: 0.55rem; }
.brand__mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: 0.16em;
}
.brand__tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  color: var(--text-faint);
  border: 1px solid var(--line);
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
}
.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  position: relative;
  padding-block: 0.4rem;
  transition: color 0.25s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--text);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__links a:hover,
.nav__links a[aria-current="page"] { color: var(--text); }
.nav__links a:hover::after,
.nav__links a[aria-current="page"]::after { transform: scaleX(1); }

.nav__toggle {
  display: none;
  background: none; border: 1px solid var(--line-strong);
  color: var(--text);
  width: 42px; height: 42px;
  border-radius: 3px;
  cursor: pointer;
  align-items: center; justify-content: center;
}
.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  display: block;
  width: 18px; height: 1.5px;
  background: var(--text);
  position: relative;
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav__toggle span::before { position: absolute; top: -6px; }
.nav__toggle span::after  { position: absolute; top: 6px; }
.nav.is-open .nav__toggle span { background: transparent; }
.nav.is-open .nav__toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav__toggle span::after  { transform: translateY(-6px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.85rem 1.4rem;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  color: var(--text);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease),
              box-shadow 0.3s var(--ease), transform 0.2s var(--ease);
}
.btn:hover {
  border-color: var(--glow);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 0 40px -12px var(--glow);
  transform: translateY(-1px);
}
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn--solid {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn--solid:hover { box-shadow: 0 0 50px -10px var(--glow); color: var(--bg); }

/* ---------- hero ---------- */
.hero { position: relative; padding-block: clamp(5rem, 14vh, 9rem) clamp(4rem, 9vw, 7rem); }
.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: -1;
  -webkit-mask-image: radial-gradient(70% 60% at 60% 40%, #000 30%, transparent 80%);
          mask-image: radial-gradient(70% 60% at 60% 40%, #000 30%, transparent 80%);
  opacity: 0.7;
}
.hero h1 {
  font-size: clamp(2.8rem, 8.5vw, 6.2rem);
  margin-block: 1.4rem 1.6rem;
  max-width: 16ch;
}
.hero h1 em {
  font-style: normal;
  color: var(--text-faint);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }
.hero__coords {
  margin-top: 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}
.hero__coords div { font-family: var(--font-mono); font-size: 0.74rem; color: var(--text-faint); letter-spacing: 0.08em; }
.hero__coords strong { display: block; color: var(--text); font-weight: 500; margin-top: 0.25rem; letter-spacing: 0.04em; }

/* ---------- capability ticker ---------- */
.caps {
  border-block: 1px solid var(--line);
  background: var(--bg-elev);
}
.caps__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}
.caps__item {
  flex: 1 1 200px;
  padding: 1.5rem var(--gutter);
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.caps__item:first-child { border-left: 0; }
.caps__item .n { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-faint); letter-spacing: 0.16em; }
.caps__item .t { font-family: var(--font-display); font-weight: 500; font-size: 1.05rem; }

/* ---------- section heading block ---------- */
.sec-head { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 3rem; max-width: 60ch; }
.sec-head h2 { font-size: clamp(1.9rem, 4.5vw, 3.1rem); }

/* ---------- cards / services ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.card {
  position: relative;
  background: var(--bg-card);
  padding: 2.2rem 2rem 2.4rem;
  transition: background 0.4s var(--ease);
  overflow: hidden;
}
.card:hover { background: var(--bg-elev); }
/* registration-mark corners */
.card::before, .card::after {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border: 1px solid var(--line-strong);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.card::before { top: 12px; left: 12px; border-right: 0; border-bottom: 0; }
.card::after  { bottom: 12px; right: 12px; border-left: 0; border-top: 0; }
.card:hover::before, .card:hover::after { opacity: 1; }

.card .idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.2em;
}
.card h3 {
  font-size: 1.35rem;
  margin-block: 1.1rem 0.8rem;
  font-weight: 600;
}
.card p { color: var(--text-dim); font-size: 0.96rem; margin: 0 0 1.2rem; }
.card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.card li {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  display: flex; align-items: center; gap: 0.6rem;
}
.card li::before { content: ""; width: 5px; height: 5px; background: var(--text-faint); flex: none; }

/* ---------- page header (interior pages) ---------- */
.page-head { padding-block: clamp(4rem, 10vh, 7rem) clamp(2rem, 5vw, 3.5rem); }
.page-head h1 { font-size: clamp(2.4rem, 7vw, 4.6rem); margin-top: 1.2rem; }
.page-head p { margin-top: 1.4rem; }

/* ---------- contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.contact-grid > * { background: var(--bg-card); padding: clamp(1.8rem, 4vw, 2.8rem); }

.info-block { display: grid; gap: 2rem; align-content: start; }
.info-item .label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.7rem;
}
.info-item address {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.9;
  color: var(--text);
}
.info-item a.maillink {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: border-color 0.3s var(--ease);
}
.info-item a.maillink:hover { border-color: var(--glow); }

/* ---------- form ---------- */
.form { display: grid; gap: 1.4rem; }
.field { display: grid; gap: 0.5rem; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.field input,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 0.85rem 1rem;
  width: 100%;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--glow);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 0 30px -14px var(--glow);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--text-faint); }

.form__foot { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.form__status {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}
.form__status.is-ok  { color: var(--text); }
.form__status.is-err { color: #ff9a9a; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

/* ---------- CTA strip ---------- */
.cta {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.cta::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(60% 120% at 90% 0%, rgba(255,255,255,0.06), transparent 60%);
  pointer-events: none;
}
.cta h2 { font-size: clamp(1.7rem, 4vw, 2.8rem); max-width: 18ch; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); margin-top: 2rem; }
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-block: 3.5rem 2.5rem;
}
.footer__brand .brand__mark { font-size: 1.4rem; }
.footer__brand p { color: var(--text-dim); font-size: 0.92rem; max-width: 34ch; margin: 1rem 0 0; }
.footer h4 {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 0 0 1.2rem;
  font-weight: 400;
}
.footer__col a, .footer__col address {
  display: block;
  font-style: normal;
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.9;
  transition: color 0.25s var(--ease);
}
.footer__col a:hover { color: var(--text); }
.footer__bar {
  border-top: 1px solid var(--line);
  padding-block: 1.4rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.footer__bar span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-faint);
}

/* ---------- scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: 0.08s; }
[data-reveal][data-delay="2"] { transition-delay: 0.16s; }
[data-reveal][data-delay="3"] { transition-delay: 0.24s; }
[data-reveal][data-delay="4"] { transition-delay: 0.32s; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }

  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1.5rem;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
  }
  .nav.is-open .nav__links { transform: none; opacity: 1; pointer-events: auto; }
  .nav__links a { width: 100%; padding-block: 0.9rem; font-size: 0.9rem; border-bottom: 1px solid var(--line); }
  .nav__links a::after { display: none; }
}

@media (max-width: 520px) {
  .footer__top { grid-template-columns: 1fr; }
  .hero__coords { gap: 1.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}