/* ===========================================================
   Xorosol — global stylesheet
   Design: "blueprint" system — technical/engineering aesthetic
   Fonts:  Big Shoulders Display (headings), IBM Plex Sans (body),
           IBM Plex Mono (labels/data)
   =========================================================== */

:root {
  --ink: #12181f;
  --ink-soft: #4a5560;
  --paper: #eef0ec;
  --paper-alt: #e3e7e2;
  --surface: #ffffff;
  --line: #d2d8d2;
  --blueprint: #14395e;
  --blueprint-deep: #0e2b47;
  --blueprint-line: rgba(255, 255, 255, 0.16);
  --signal: #d9631a;
  --signal-strong: #b8500f;
  --focus: #14395e;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #e9ede8;
    --ink-soft: #a9b3ab;
    --paper: #0f1512;
    --paper-alt: #161d19;
    --surface: #161f1b;
    --line: #2a332e;
    --blueprint: #0f2a47;
    --blueprint-deep: #0a1e33;
    --blueprint-line: rgba(255, 255, 255, 0.14);
    --signal: #ef8a3f;
    --signal-strong: #f7a35f;
    --focus: #ef8a3f;
  }
}

:root[data-theme="dark"] {
  --ink: #e9ede8;
  --ink-soft: #a9b3ab;
  --paper: #0f1512;
  --paper-alt: #161d19;
  --surface: #161f1b;
  --line: #2a332e;
  --blueprint: #0f2a47;
  --blueprint-deep: #0a1e33;
  --blueprint-line: rgba(255, 255, 255, 0.14);
  --signal: #ef8a3f;
  --signal-strong: #f7a35f;
  --focus: #ef8a3f;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Big Shoulders Display", "Arial Narrow", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 0.98;
  text-wrap: balance;
  margin: 0;
}

.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }
a { color: inherit; }
img, svg { max-width: 100%; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding-inline: 24px;
}

/* ---------- NAV ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 16px;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Big Shoulders Display", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
}
.logo .mark {
  width: 30px; height: 30px;
  border: 2px solid var(--ink);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.logo .mark span { width: 10px; height: 10px; background: var(--signal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.nav-links a { text-decoration: none; color: var(--ink-soft); }
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a.active { color: var(--ink); }
.nav-links a.active { border-bottom: 2px solid var(--signal); padding-bottom: 2px; }
.nav-cta { background: var(--ink); color: var(--paper) !important; padding: 10px 18px; }
.nav-cta:hover { background: var(--signal); color: #fff !important; }
.nav-cta.active { border-bottom: none !important; }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink);
  flex-shrink: 0;
}

@media (max-width: 760px) {
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 18px;
  }
  .nav-links[hidden] { display: none; }
  .nav-cta { text-align: center; }
  .nav-toggle { display: grid; }
}

button, input, select, textarea { font-family: inherit; font-size: inherit; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: 14px 24px;
  border: 1px solid currentColor;
  cursor: pointer;
  transition: transform 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-solid { background: var(--signal); border-color: var(--signal); color: #fff; }
.btn-solid:hover { background: var(--signal-strong); border-color: var(--signal-strong); }
.btn-outline-dark { background: transparent; border-color: rgba(255, 255, 255, 0.5); color: #fff; }
.btn-outline-dark:hover { border-color: #fff; }
.btn-outline { background: transparent; border-color: var(--ink); color: var(--ink); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

/* ---------- HERO (home) ---------- */
.hero {
  background:
    repeating-linear-gradient(0deg, var(--blueprint-line) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, var(--blueprint-line) 0 1px, transparent 1px 48px),
    linear-gradient(160deg, var(--blueprint) 0%, var(--blueprint-deep) 100%);
  color: #f2f5f7;
  padding-block: 72px 88px;
  position: relative;
  overflow: hidden;
}
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--signal-strong);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--signal-strong); }
.hero h1 { font-size: clamp(2.5rem, 5.6vw, 4.1rem); color: #fff; max-width: 12ch; }
.hero p.lede { margin-top: 22px; font-size: 1.08rem; color: rgba(242, 245, 247, 0.82); max-width: 46ch; }
.hero-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 14px; }
.spec-row {
  margin-top: 44px;
  border-top: 1px solid var(--blueprint-line);
  padding-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 28px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.spec-row div span:first-child { display: block; color: rgba(242, 245, 247, 0.55); margin-bottom: 4px; font-size: 0.7rem; }
.spec-row div span:last-child { color: #fff; }
.blueprint-figure { position: relative; justify-self: center; }
.blueprint-figure svg { width: 100%; height: auto; max-width: 320px; }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .blueprint-figure { order: -1; max-width: 220px; margin-inline: auto; }
  .spec-row { grid-template-columns: 1fr 1fr; }
}

/* ---------- PAGE HEADER (inner pages) ---------- */
.page-header {
  background:
    repeating-linear-gradient(0deg, var(--blueprint-line) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, var(--blueprint-line) 0 1px, transparent 1px 48px),
    linear-gradient(160deg, var(--blueprint) 0%, var(--blueprint-deep) 100%);
  color: #f2f5f7;
  padding-block: 56px 64px;
}
.page-header h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); color: #fff; max-width: 20ch; }
.page-header p.lede { margin-top: 16px; color: rgba(242, 245, 247, 0.82); max-width: 60ch; font-size: 1.05rem; }

/* ---------- SECTION SHELL ---------- */
section { padding-block: 84px; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--signal);
  display: block;
  margin-bottom: 10px;
}
.section-head h2 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); }
.section-head p { max-width: 42ch; color: var(--ink-soft); margin: 0; }

/* ---------- CAPABILITY BAR ---------- */
.cap-bar { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-alt); }
.cap-bar .wrap { display: grid; grid-template-columns: repeat(4, 1fr); padding-block: 0; }
.cap-item { padding: 26px 18px; border-left: 1px solid var(--line); text-align: left; }
.cap-item:first-child { border-left: none; }
.cap-item .num { font-family: "Big Shoulders Display", sans-serif; font-size: 1.9rem; color: var(--signal); display: block; }
.cap-item .label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  display: block;
  margin-top: 4px;
}
@media (max-width: 700px) {
  .cap-bar .wrap { grid-template-columns: 1fr 1fr; }
  .cap-item:nth-child(3) { border-left: none; }
  .cap-item { border-bottom: 1px solid var(--line); }
}

/* ---------- SERVICES ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.service-card { background: var(--surface); padding: 32px 28px; }
.service-card .tag { font-family: "IBM Plex Mono", monospace; font-size: 0.7rem; color: var(--ink-soft); letter-spacing: 0.06em; }
.service-card h3 {
  font-size: 1.25rem;
  margin-top: 12px;
  margin-bottom: 12px;
  text-transform: none;
  letter-spacing: 0;
  font-family: "IBM Plex Sans", sans-serif;
  font-weight: 700;
}
.service-card p { color: var(--ink-soft); font-size: 0.95rem; margin: 0; }
@media (max-width: 860px) { .service-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .service-grid { grid-template-columns: 1fr; } }

/* ---------- PROCESS ---------- */
.process-alt { background: var(--paper-alt); }
.process-list { position: relative; }
.process-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding-block: 26px;
  border-top: 1px solid var(--line);
}
.process-item:last-child { border-bottom: 1px solid var(--line); }
.process-item .rev { font-family: "Big Shoulders Display", sans-serif; font-size: 2.4rem; color: var(--line); }
.process-item h3 {
  font-family: "IBM Plex Sans", sans-serif;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 6px;
}
.process-item p { margin: 0; color: var(--ink-soft); max-width: 60ch; }
@media (max-width: 600px) {
  .process-item { grid-template-columns: 1fr; gap: 6px; }
  .process-item .rev { font-size: 1.6rem; }
}

/* ---------- WHY ---------- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 40px; }
.why-item { display: flex; gap: 16px; align-items: flex-start; padding-block: 8px; }
.why-item .chk {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border: 1.5px solid var(--signal);
  display: grid;
  place-items: center;
  margin-top: 2px;
}
.why-item .chk svg { width: 12px; height: 12px; }
.why-item h3 {
  font-family: "IBM Plex Sans", sans-serif;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 700;
  font-size: 1.02rem;
  margin-bottom: 4px;
}
.why-item p { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }
@media (max-width: 700px) { .why-grid { grid-template-columns: 1fr; } }

/* ---------- TECH ---------- */
.tech-group { margin-bottom: 28px; }
.tech-group .glabel {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 14px;
}
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { font-family: "IBM Plex Mono", monospace; font-size: 0.82rem; border: 1px solid var(--line); padding: 8px 14px; background: var(--surface); }

/* ---------- CTA BANNER ---------- */
.cta-banner { background: var(--ink); color: var(--paper); }
.cta-banner .wrap { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; padding-block: 56px; }
.cta-banner h2 { color: var(--paper); font-size: clamp(1.7rem, 4vw, 2.3rem); max-width: 16ch; }
.cta-banner .btn-solid { color: #fff; }

/* ---------- CONTACT ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; }
.contact-info .email-line {
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.05rem;
  text-decoration: none;
  border-bottom: 1px solid var(--signal);
  padding-bottom: 2px;
}
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.field input, .field select, .field textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 12px 14px;
}
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 0.82rem; color: var(--ink-soft); margin-top: 12px; }
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- FOOTER ---------- */
footer { border-top: 1px solid var(--line); padding-block: 40px; }
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  color: var(--ink-soft);
}
footer .flinks { display: flex; gap: 20px; flex-wrap: wrap; }
footer .flinks a { text-decoration: none; }
footer .flinks a:hover { color: var(--ink); }
footer .footer-legal {
  justify-content: flex-start;
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 20px;
  gap: 24px;
  font-size: 0.74rem;
}
footer .footer-legal a { text-decoration: underline; }
footer .footer-legal a:hover { color: var(--ink); }

/* ---------- LEGAL / POLICY CONTENT ---------- */
.legal-content { max-width: 760px; }
.legal-content .updated {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.legal-toc {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 22px 26px;
  margin-bottom: 44px;
  max-width: 760px;
}
.legal-toc .glabel {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 12px;
}
.legal-toc ol { columns: 2; column-gap: 32px; margin: 0; padding-left: 20px; }
.legal-toc li { margin-bottom: 8px; font-size: 0.9rem; break-inside: avoid; }
.legal-toc a { color: var(--ink-soft); text-decoration: none; }
.legal-toc a:hover { color: var(--signal); }
@media (max-width: 600px) { .legal-toc ol { columns: 1; } }

.legal-content h2 {
  font-family: "IBM Plex Sans", sans-serif;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 700;
  font-size: 1.4rem;
  margin-top: 48px;
  margin-bottom: 14px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 90px;
}
.legal-content h2:first-of-type { margin-top: 0; padding-top: 0; border-top: none; }
.legal-content h2 .num { color: var(--signal); font-family: "IBM Plex Mono", monospace; margin-right: 10px; }
.legal-content h3 {
  font-family: "IBM Plex Sans", sans-serif;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 700;
  font-size: 1.02rem;
  margin-top: 22px;
  margin-bottom: 8px;
}
.legal-content p, .legal-content li { color: var(--ink-soft); font-size: 0.98rem; margin-bottom: 12px; }
.legal-content ul, .legal-content ol { padding-left: 22px; margin: 0 0 16px; }
.legal-content strong { color: var(--ink); }
.legal-content a { color: var(--signal); }