/* ==========================================================================
   INFOABLE NETWORK — Design System
   Display: Unbounded | Body: IBM Plex Sans | Utility: IBM Plex Mono
   ========================================================================== */

:root {
  /* Color */
  --ink:        #0C1524;   /* deep navy-slate — primary dark ground */
  --ink-raised: #121F33;   /* panels on ink */
  --paper:      #F6F4EF;   /* warm paper — alternating light ground */
  --paper-dim:  #EBE8E0;
  --cobalt:     #2F6FED;   /* logo blue — primary accent / CTA */
  --crimson:    #E13B3B;   /* logo red */
  --leaf:       #2FA84F;   /* logo green */
  --amber:      #F0A93A;   /* logo gold */
  --ash:        #9AA5B8;   /* muted text on ink */
  --slate:      #4A5568;   /* muted text on paper */
  --line-dark:  rgba(246,244,239,0.14);
  --line-light: rgba(12,21,36,0.12);

  --display: 'Unbounded', sans-serif;
  --body: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --max: 1180px;
  --edge: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--edge);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cobalt);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  background: currentColor;
  border-radius: 1px;
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* ---------------- Buttons ---------------- */
.btn {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s cubic-bezier(.2,.8,.2,1), background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.btn:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 3px; }
.btn-primary { background: var(--cobalt); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); background: #2559C7; }
.btn-ghost-dark { border-color: var(--line-dark); color: var(--paper); }
.btn-ghost-dark:hover { border-color: var(--paper); transform: translateY(-2px); }
.btn-ghost-light { border-color: var(--line-light); color: var(--ink); }
.btn-ghost-light:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn-arrow { transition: transform 0.25s ease; }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ---------------- Header ---------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--ink);
  border-bottom: 1px solid var(--line-dark);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 34px; height: 34px;
  object-fit: contain;
  flex-shrink: 0;
}
.brand-word {
  font-family: var(--display);
  font-size: 16px;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.brand-word b { font-weight: 600; }
.brand-word em { font-style: normal; color: var(--ash); font-weight: 300; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.nav-links a {
  color: var(--ash);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--paper); }
.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--cobalt);
}
.nav-cta {
  border: 1px solid var(--line-dark);
  padding: 10px 18px;
  border-radius: 2px;
  color: var(--paper) !important;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.nav-cta:hover { border-color: var(--cobalt); background: rgba(47,111,237,0.12); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  margin: -12px;
  z-index: 101;
  position: relative;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--paper); transition: transform 0.3s ease, opacity 0.3s ease; }

@media (max-width: 1080px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 95;
    background: var(--ink);
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    padding: 100px var(--edge) 48px;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 0.3s ease, transform 0.35s cubic-bezier(.2,.8,.2,1), visibility 0s linear 0.35s;
    counter-reset: navcount;
  }
  .nav-links.open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.35s cubic-bezier(.2,.8,.2,1), visibility 0s linear 0s;
  }

  .nav-links a:not(.nav-cta) {
    counter-increment: navcount;
    display: flex;
    align-items: baseline;
    gap: 16px;
    font-family: var(--display);
    font-size: clamp(26px, 8vw, 34px);
    text-transform: none;
    letter-spacing: -0.01em;
    color: var(--paper);
    padding: 18px 2px;
    border-top: 1px solid var(--line-dark);
  }
  .nav-links a:not(.nav-cta)::before {
    content: counter(navcount, decimal-leading-zero);
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.05em;
    color: var(--cobalt);
    flex-shrink: 0;
  }
  .nav-links a:not(.nav-cta):last-of-type { border-bottom: 1px solid var(--line-dark); }
  .nav-links a[aria-current="page"] { color: var(--cobalt); }
  .nav-links a[aria-current="page"]::after { display: none; }

  .nav-links .nav-cta {
    margin-top: 32px;
    justify-content: center;
    text-align: center;
    background: var(--cobalt);
    color: #fff !important;
    border-color: var(--cobalt);
    padding: 18px 26px;
    font-size: 14px;
  }

  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 1080px) and (max-height: 640px) {
  .nav-links { justify-content: flex-start; padding-top: 90px; overflow-y: auto; }
  .nav-links a:not(.nav-cta) { padding: 13px 2px; font-size: clamp(22px, 7vw, 28px); }
}

/* ---------------- Hero / network canvas ---------------- */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: 190px var(--edge) 120px;
  overflow: hidden;
}
.hero canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  opacity: 0.85;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 76px);
  max-width: 16ch;
  margin-top: 22px;
}
.hero h1 i { font-style: normal; color: var(--cobalt); }
.hero-sub {
  margin-top: 26px;
  max-width: 46ch;
  font-size: 18px;
  color: var(--ash);
}
.hero-actions { margin-top: 40px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 90px;
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--mono);
}
.hero-meta div span { display: block; font-size: 11px; color: var(--ash); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 6px; }
.hero-meta div b { font-size: 15px; color: var(--paper); font-weight: 400; }

/* ---------------- Sections ---------------- */
section { padding: 110px 0; }
.section-tight { padding: 80px 0; }
.on-ink { background: var(--ink); color: var(--paper); }
.on-paper { background: var(--paper); color: var(--ink); }
.on-paper-dim { background: var(--paper-dim); }

.section-head { max-width: 640px; margin-bottom: 64px; }
.section-head h2 { font-size: clamp(28px, 4vw, 44px); margin-top: 16px; }
.section-head p.lede { margin-top: 18px; font-size: 17px; color: var(--slate); }
.on-ink .section-head p.lede { color: var(--ash); }

/* ---------------- Expertise grid ---------------- */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-light);
  border: 1px solid var(--line-light);
}
.on-ink .expertise-grid { background: var(--line-dark); border-color: var(--line-dark); }
.expertise-card {
  background: var(--paper);
  padding: 40px 32px;
  transition: background 0.3s ease;
}
.on-ink .expertise-card { background: var(--ink); }
.expertise-card:hover { background: var(--paper-dim); }
.on-ink .expertise-card:hover { background: var(--ink-raised); }
.expertise-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 4px 8px;
  border-radius: 2px;
  display: inline-block;
  margin-bottom: 22px;
}
.expertise-card h3 { font-size: 19px; margin-bottom: 10px; }
.expertise-card p { color: var(--slate); font-size: 15px; }
.on-ink .expertise-card p { color: var(--ash); }
@media (max-width: 860px) { .expertise-grid { grid-template-columns: 1fr; } }

/* ---------------- Stats ---------------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 56px var(--edge);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}
.stat b { display: block; font-family: var(--display); font-size: 40px; font-weight: 600; }
.stat span { font-family: var(--mono); font-size: 12px; color: var(--ash); text-transform: uppercase; letter-spacing: 0.08em; }
@media (max-width: 760px) { .stats-band { grid-template-columns: repeat(2, 1fr); } }

/* ---------------- Reveal on scroll ---------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------------- Footer ---------------- */
.site-footer { background: var(--ink); color: var(--ash); padding: 70px 0 34px; }
.footer-top { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; padding-bottom: 50px; border-bottom: 1px solid var(--line-dark); }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h4 { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--paper); margin-bottom: 18px; }
.footer-col a, .footer-col p { display: block; font-size: 14px; color: var(--ash); margin-bottom: 10px; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--paper); }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 26px; font-family: var(--mono); font-size: 12px; flex-wrap: wrap; gap: 12px; }

/* ---------------- Misc page components ---------------- */
.pill-list { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { font-family: var(--mono); font-size: 12px; padding: 7px 14px; border: 1px solid var(--line-light); border-radius: 999px; color: var(--slate); }
.on-ink .pill { border-color: var(--line-dark); color: var(--ash); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 40px; } }

.quote-block {
  border-left: 2px solid var(--cobalt);
  padding-left: 28px;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.4;
}

.timeline-list { display: flex; flex-direction: column; }
.timeline-item { display: grid; grid-template-columns: 90px 1fr; gap: 28px; padding: 28px 0; border-top: 1px solid var(--line-light); }
.on-ink .timeline-item { border-color: var(--line-dark); }
.timeline-item:last-child { border-bottom: 1px solid var(--line-light); }
.on-ink .timeline-item:last-child { border-color: var(--line-dark); }
.timeline-item span.yr { font-family: var(--mono); color: var(--cobalt); font-size: 14px; }
.timeline-item h4 { font-size: 17px; margin-bottom: 6px; }
.timeline-item p { color: var(--slate); font-size: 14.5px; }
.on-ink .timeline-item p { color: var(--ash); }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

.field { margin-bottom: 22px; }
.field label { display: block; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ash); margin-bottom: 10px; }
.field input, .field select, .field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line-dark);
  color: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  padding: 12px 2px;
  transition: border-color 0.25s ease;
}
.field textarea { resize: vertical; min-height: 100px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cobalt); }
.field-error { color: var(--crimson); font-size: 12px; font-family: var(--mono); margin-top: 8px; min-height: 14px; }
.field select option { background: var(--ink); }

.form-status { font-family: var(--mono); font-size: 13px; margin-top: 18px; min-height: 20px; }
.form-status.ok { color: var(--leaf); }
.form-status.err { color: var(--crimson); }

.info-row { display: flex; gap: 18px; padding: 22px 0; border-top: 1px solid var(--line-dark); }
.info-row:last-child { border-bottom: 1px solid var(--line-dark); }
.info-row .k { font-family: var(--mono); font-size: 12px; color: var(--ash); width: 110px; flex-shrink: 0; text-transform: uppercase; letter-spacing: 0.08em; padding-top: 3px; }
.info-row .v { font-size: 15px; }
.info-row .v a:hover { color: var(--cobalt); }

.map-frame { border: 1px solid var(--line-dark); margin-top: 30px; height: 260px; overflow: hidden; }
.map-frame iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.4) invert(0.92) contrast(0.9); }

.telegram-fab {
  position: fixed;
  bottom: 26px; right: 26px;
  z-index: 90;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #229ED9;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(34,158,217,0.4);
  transition: transform 0.25s cubic-bezier(.2,.8,.2,1);
}
.telegram-fab:hover { transform: scale(1.08); }
.telegram-fab svg { width: 26px; height: 26px; fill: #fff; }

.service-detail { padding: 100px 0; border-top: 1px solid var(--line-light); }
.on-ink .service-detail { border-color: var(--line-dark); }
.service-detail .num { font-family: var(--mono); color: var(--cobalt); font-size: 13px; }
.service-detail h3 { font-size: clamp(24px, 3vw, 34px); margin: 14px 0 20px; }
.deliverables { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 12px; }
.deliverables li { display: flex; gap: 12px; font-size: 14.5px; color: var(--slate); }
.on-ink .deliverables li { color: var(--ash); }
.deliverables li::before { content: "→"; color: var(--cobalt); font-family: var(--mono); flex-shrink: 0; }

.team-note { display: flex; align-items: center; gap: 16px; padding: 18px 22px; border: 1px solid var(--line-light); margin-top: 40px; }
.on-ink .team-note { border-color: var(--line-dark); }
.team-note .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--leaf); flex-shrink: 0; }

@media (max-width: 560px) {
  section { padding: 64px 0; }
  .hero { padding: 132px var(--edge) 64px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .hero-meta { gap: 28px 32px; margin-top: 56px; }
  .footer-top { flex-direction: column; }
  .footer-cols { gap: 40px; }
  .stats-band { padding: 40px var(--edge); gap: 28px 20px; }
  .stat b { font-size: 32px; }
  .info-row { flex-direction: column; gap: 6px; }
  .info-row .k { width: auto; }
  .field input, .field select, .field textarea { padding: 14px 2px; font-size: 16px; }
  .expertise-card { padding: 32px 24px; }
  .timeline-item { grid-template-columns: 56px 1fr; gap: 18px; }
  .telegram-fab { width: 52px; height: 52px; bottom: 18px; right: 18px; }
}