/* ==========================================================================
   Artificial Inventor Pro — industrial safety design system
   Palette: gunmetal #14171C · panel #1C2129 · hazard amber #F5B301 ·
            eye-ring blue #4FC3F7 · text #E9ECF1 · muted #98A2AE
   Type:    Chakra Petch (display) · IBM Plex Sans (body) · IBM Plex Mono (labels)
   ========================================================================== */

:root {
  --bg: #14171C;
  --bg-deep: #0F1216;
  --panel: #1C2129;
  --panel-2: #232A34;
  --line: #2C3440;
  --amber: #F5B301;
  --amber-dim: #C79300;
  --blue: #4FC3F7;
  --text: #E9ECF1;
  --muted: #98A2AE;
  --ok: #46D370;
  --font-display: "Chakra Petch", "Noto Sans", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", "Noto Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Courier New", monospace;
  --maxw: 1180px;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, select:focus-visible,
input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 700; letter-spacing: 0.01em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.3rem); font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }

/* ---- hazard stripe: the signature device -------------------------------- */
.hazard-stripe {
  height: 8px;
  background: repeating-linear-gradient(
    -45deg,
    var(--amber) 0 14px,
    var(--bg-deep) 14px 28px
  );
}

/* ---- top status bar ------------------------------------------------------ */
.statusbar {
  background: var(--bg-deep);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.statusbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 34px;
  flex-wrap: wrap;
  padding-top: 4px;
  padding-bottom: 4px;
}
.statusbar .live { display: inline-flex; align-items: center; gap: 8px; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
  animation: pulse 2.2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.lang-picker { display: inline-flex; align-items: center; gap: 8px; }
.lang-picker select {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 3px 8px;
  cursor: pointer;
}

/* ---- nav ----------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 23, 28, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 62px;
  flex-wrap: wrap;
  padding-top: 8px;
  padding-bottom: 8px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--text);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand .eye {
  width: 18px; height: 18px; border-radius: 50%;
  border: 3px solid var(--blue);
  box-shadow: 0 0 10px rgba(79, 195, 247, 0.7), inset 0 0 4px rgba(79,195,247,.8);
  flex: none;
}
.brand .pro { color: var(--amber); }
.nav-links { display: flex; flex-wrap: wrap; gap: 4px 18px; align-items: center; }
.nav-links a {
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 0.86rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 2px;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--amber); }

/* ---- buttons -------------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 13px 26px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-amber { background: var(--amber); color: #14171C; }
.btn-amber:hover { box-shadow: 0 6px 18px rgba(245, 179, 1, 0.28); }
.btn-ghost { border-color: var(--line); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

/* ---- hero ------------------------------------------------------------------ */
.hero { position: relative; overflow: hidden; background: var(--bg-deep); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 72px 0 64px;
}
.kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 14px;
}
.hero .sub { font-size: 1.14rem; color: var(--muted); max-width: 34em; }
.tagline {
  border-inline-start: 3px solid var(--amber);
  padding-inline-start: 14px;
  margin: 22px 0 30px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--text);
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-media { position: relative; }
.hero-media img {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}
.media-tag {
  position: absolute;
  inset-inline-start: 14px;
  bottom: 14px;
  background: rgba(15, 18, 22, 0.85);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  padding: 6px 10px;
}

/* ---- system-check ticker (signature) --------------------------------------- */
.syscheck {
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.syscheck .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 34px;
  align-items: center;
  padding-top: 12px;
  padding-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.syscheck .label { color: var(--muted); }
.syscheck .item { color: var(--text); display: inline-flex; gap: 8px; align-items: center; }
.syscheck .item .ck { color: var(--ok); font-weight: 700; }

/* ---- sections ---------------------------------------------------------------- */
.section { padding: 78px 0; }
.section.alt { background: var(--bg-deep); }
.section-head { max-width: 46em; margin-bottom: 42px; }
.section-head .kicker { margin-bottom: 10px; }

/* ---- role cards ------------------------------------------------------------- */
.roles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 18px;
}
.role-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px 20px;
  position: relative;
  overflow: hidden;
}
.role-card::before {
  content: "";
  position: absolute;
  top: 0; inset-inline-start: 0; inset-inline-end: 0;
  height: 4px;
  background: repeating-linear-gradient(-45deg, var(--amber) 0 10px, transparent 10px 20px);
  opacity: 0.85;
}
.role-card h3 { color: var(--amber); margin-top: 6px; }
.role-card p { color: var(--muted); font-size: 0.94rem; margin: 0; }

/* ---- hazard grid --------------------------------------------------------------- */
.haz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}
.haz-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
}
.haz-card .sym {
  width: 46px; height: 46px;
  border-radius: 8px;
  background: rgba(245, 179, 1, 0.1);
  border: 1px solid rgba(245, 179, 1, 0.45);
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  color: var(--amber);
}
.haz-card .sym svg { width: 26px; height: 26px; }
.haz-card p { color: var(--muted); font-size: 0.94rem; margin: 0; }

/* ---- split feature sections ------------------------------------------------------ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
}
.split.rev > .split-media { order: 2; }
.split-media img {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45);
}
.split-media { position: relative; }
.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li {
  padding-inline-start: 34px;
  position: relative;
  margin-bottom: 14px;
  color: var(--text);
}
.checklist li::before {
  content: "✓";
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  width: 22px; height: 22px;
  border-radius: 5px;
  background: rgba(70, 211, 112, 0.12);
  border: 1px solid rgba(70, 211, 112, 0.5);
  color: var(--ok);
  font-size: 0.8rem;
  display: grid;
  place-items: center;
}

/* monitoring meter row */
.meters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin-top: 28px;
}
.meter {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  font-family: var(--font-mono);
}
.meter .name {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.meter .val { color: var(--ok); font-size: 0.95rem; font-weight: 600; }

/* ---- image gallery duo ------------------------------------------------------------- */
.duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 34px;
}
.duo figure { margin: 0; position: relative; }
.duo img { border-radius: var(--radius); border: 1px solid var(--line); width: 100%; height: 100%; object-fit: cover; }

/* ---- CTA band ------------------------------------------------------------------------ */
.cta-band {
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: 70px 0;
}
.cta-band .sub { color: var(--muted); max-width: 36em; margin: 0 auto 26px; }

/* ---- pricing -------------------------------------------------------------------------- */
.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 22px;
  max-width: 860px;
}
.plan {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
}
.plan.featured { border-color: var(--amber); box-shadow: 0 0 0 1px var(--amber), 0 18px 44px rgba(0,0,0,.4); }
.plan .price {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text);
  margin: 8px 0 2px;
}
.plan .price .per { font-size: 0.95rem; color: var(--muted); font-weight: 400; }
.plan .tagl { color: var(--muted); font-size: 0.95rem; min-height: 3em; }
.plan .checklist { margin: 18px 0 26px; flex: 1; }
.plan .checklist li { font-size: 0.94rem; margin-bottom: 11px; }
.plan .btn { text-align: center; }

/* ---- downloads -------------------------------------------------------------------------- */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  max-width: 940px;
}
.dl-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: center;
}
.dl-card h3 { color: var(--text); }
.dl-card .os {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 16px;
}

/* ---- contact ------------------------------------------------------------------------------ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}
.form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
}
.form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 6px;
}
.form input, .form textarea {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 11px 13px;
  margin-bottom: 18px;
}
.form textarea { min-height: 140px; resize: vertical; }
.form-msg { margin-top: 14px; font-size: 0.92rem; display: none; }
.form-msg.ok { color: var(--ok); display: block; }
.form-msg.err { color: var(--amber); display: block; }
.direct-mail {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.direct-mail a { font-family: var(--font-mono); font-size: 0.95rem; word-break: break-all; }

/* ---- footer ---------------------------------------------------------------------------------- */
footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  padding: 44px 0 32px;
  color: var(--muted);
  font-size: 0.9rem;
}
footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 40px;
  justify-content: space-between;
  align-items: center;
}
footer .fbrand { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.05em; color: var(--text); }
footer .fbrand .pro { color: var(--amber); }

/* ---- page hero (interior pages) ----------------------------------------------------------------- */
.page-hero { background: var(--bg-deep); padding: 64px 0 52px; }
.page-hero .sub { color: var(--muted); max-width: 44em; font-size: 1.08rem; }

/* ---- responsive --------------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .hero-grid, .split, .split.rev, .contact-grid { grid-template-columns: 1fr; }
  .split.rev > .split-media { order: 0; }
  .hero-grid { padding: 48px 0 44px; gap: 34px; }
  .duo { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .nav-links { gap: 2px 14px; }
  .hero-ctas .btn { width: 100%; text-align: center; }
}