/* ==========================================================================
   Imperial NextOS — Design tokens
   ========================================================================== */
:root{
  --red: #D71920;
  --red-dark: #A3121A;
  --yellow: #FFC400;
  --yellow-dark: #B88600;
  --green: #1E8F6F;
  --blue: #1F6FB2;

  --ink: #14151B;
  --ink-soft: #40424E;
  --paper: #F4F4F2;
  --paper-alt: #ECEBE6;
  --line: #DCDAD2;
  --white: #FFFFFF;

  --font-display: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius: 6px;
  --radius-lg: 14px;
  --wrap: 1160px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}

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

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }

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

.text-primary{ color:var(--red); }

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{ font-size:clamp(36px, 5.2vw, 64px); }
h2{ font-size:clamp(26px, 3.4vw, 40px); }
h3{ font-size:19px; }
p{ margin:0 0 1em; color:var(--ink-soft); }
code{ font-family:var(--font-mono); }

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

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(244,244,242,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header__row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:12px 24px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand__mark{ width:34px; height:34px; object-fit:contain; }
.brand__mark--sm{ width:30px; height:30px; }
.brand__name{
  font-family:var(--font-display);
  font-weight:700;
  font-size:18px;
  color:var(--ink);
}
.brand__name--sm{ display:block; font-size:16px; }
.brand__suffix{ color:var(--red); }

.nav{ display:flex; gap:28px; }
.nav a{
  font-size:14px;
  font-weight:600;
  color:var(--ink-soft);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:color .15s, border-color .15s;
}
.nav a:hover, .nav a.active{ color:var(--red); border-color:var(--red); }

.header__actions{ display:flex; align-items:center; gap:10px; }

.icon{ width:18px; height:18px; fill:currentColor; }

.lang-switch{
  display:flex;
  border:1px solid var(--line);
  border-radius:999px;
  padding:3px;
  gap:2px;
  background:var(--white);
}
.lang-btn{
  border:0;
  background:transparent;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.04em;
  padding:5px 10px;
  border-radius:999px;
  cursor:pointer;
  color:var(--ink-soft);
  transition:background .15s, color .15s;
}
.lang-btn[aria-pressed="true"]{
  background:var(--ink);
  color:var(--white);
}
.lang-btn:hover:not([aria-pressed="true"]){ color:var(--ink); }

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:14px;
  padding:10px 18px;
  border-radius:var(--radius);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .12s ease, opacity .15s ease, background .15s ease;
}
.btn:active{ transform:scale(.97); }
.btn--primary{ background:var(--red); color:var(--white); }
.btn--primary:hover{ background:var(--red-dark); }
.btn--ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn--ghost:hover{ background:var(--paper-alt); }
.btn--outline{ background:transparent; color:var(--ink); border-color:var(--ink); }
.btn--outline:hover{ background:var(--ink); color:var(--white); }
.btn--outline-light{ background:transparent; color:var(--white); border-color:rgba(255,255,255,.5); }
.btn--outline-light:hover{ background:rgba(255,255,255,.12); }
.btn--lg{ padding:14px 24px; font-size:15px; }

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:0;
  cursor:pointer;
  padding:8px;
}
.nav-toggle span{ width:22px; height:2px; background:var(--ink); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  padding:76px 0 96px;
  overflow:hidden;
}
.hero__grid{
  position:absolute; inset:0;
  background-image:radial-gradient(circle, var(--line) 1px, transparent 1px);
  background-size:26px 26px;
  mask-image:linear-gradient(to bottom, black, transparent 85%);
  opacity:.7;
}
.hero__row{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--red-dark);
  background:#FCE4E1;
  border:1px solid #F2B9B4;
  padding:5px 10px;
  border-radius:999px;
  margin-bottom:18px;
}
.eyebrow--on-dark{ color:var(--yellow); background:rgba(255,196,0,.12); border-color:rgba(255,196,0,.4); }

.hero__lede{ font-size:17px; max-width:52ch; }
.hero__slogan{
  font-family:var(--font-mono);
  font-size:14px;
  color:var(--ink);
  border-left:3px solid var(--yellow);
  padding-left:12px;
  margin:20px 0 28px;
}
.hero__actions{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:36px; }

.hero__stats{ display:flex; gap:32px; }
.hero__stats div{ display:flex; flex-direction:column; }
.hero__stats strong{ font-family:var(--font-display); font-size:22px; color:var(--ink); }
.hero__stats span{ font-size:12px; color:var(--ink-soft); text-transform:uppercase; letter-spacing:.06em; }

/* Terminal signature element */
.terminal{
  background:#0D0F13;
  border-radius:var(--radius-lg);
  border:1px solid #22242C;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.45);
  overflow:hidden;
  position:relative;
}
.terminal::after{
  content:"";
  position:absolute; inset:0;
  background:repeating-linear-gradient(to bottom, rgba(255,255,255,.035) 0px, rgba(255,255,255,.035) 1px, transparent 1px, transparent 3px);
  pointer-events:none;
}
.terminal__bar{
  display:flex;
  align-items:center;
  gap:8px;
  padding:12px 14px;
  background:#161821;
  border-bottom:1px solid #22242C;
}
.dot{ width:10px; height:10px; border-radius:50%; }
.dot--r{ background:var(--red); }
.dot--y{ background:var(--yellow); }
.dot--g{ background:var(--green); }
.terminal__title{
  margin-left:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:#7A7D8A;
}
.terminal__body{
  padding:18px 16px 24px;
  font-family:var(--font-mono);
  font-size:13px;
  line-height:1.8;
  color:#C9D6D3;
  min-height:260px;
  white-space:pre-wrap;
}
.terminal__body .ok{ color:var(--green); }
.terminal__body .warn{ color:var(--yellow); }
.terminal__body .accent{ color:#58B0E0; }
.terminal__body .prompt{ color:var(--red); }
.terminal__cursor{
  display:inline-block;
  width:8px; height:14px;
  background:var(--yellow);
  vertical-align:middle;
  animation:blink 1s step-end infinite;
}
@keyframes blink{ 50%{ opacity:0; } }

/* ==========================================================================
   Sections
   ========================================================================== */
.section{ padding:88px 0; }
.section--alt{ background:var(--paper-alt); }
.section__head{ max-width:680px; margin-bottom:48px; }
.section__sub{ font-size:16px; }

/* Compare cards */
.compare{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
}
.compare__card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  position:relative;
}
.compare__card--imperial{
  border:2px solid var(--red);
  box-shadow:0 20px 40px -24px rgba(215,25,32,.35);
}
.compare__card--dim{ opacity:.85; }
.badge{
  position:absolute; top:0; right:0;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
  padding:6px 10px;
  border-radius:0 12px 0 10px;
}
.badge--primary{ background:var(--red); color:var(--white); }

.compare__list{ margin:18px 0 24px; display:flex; flex-direction:column; gap:12px; }
.compare__list li{ display:flex; align-items:flex-start; gap:10px; font-size:14px; color:var(--ink); }
.ico{ width:18px; height:18px; flex:none; margin-top:1px; stroke-width:2.4; fill:none; stroke:currentColor; stroke-linecap:round; stroke-linejoin:round; }
.ico--ok{ color:var(--green); }
.ico--no{ color:var(--red); }

.compare__metric{
  border-top:1px solid var(--line);
  padding-top:14px;
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
}
.compare__metric span{ font-size:12px; color:var(--ink-soft); }
.count{ font-family:var(--font-display); font-size:28px; color:var(--red); }

/* Features */
.features{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:24px;
}
.feature{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
}
.feature__icon{
  width:46px; height:46px;
  border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:16px;
}
.feature__icon svg{ width:24px; height:24px; fill:none; stroke:#fff; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.feature__icon--red{ background:var(--red); }
.feature__icon--yellow{ background:var(--yellow-dark); }
.feature__icon--blue{ background:var(--blue); }

/* Team */
.team{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:22px;
}
.member{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  text-align:center;
}
.member__photo{
  width:96px; height:96px;
  border-radius:50%;
  overflow:hidden;
  margin:0 auto 16px;
  border:3px solid var(--white);
  box-shadow:0 0 0 2px var(--line);
}
.member__photo img{ width:100%; height:100%; object-fit:cover; }
.member h3{ margin-bottom:6px; }
.member__role{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:4px 10px;
  border-radius:999px;
}
.member__role--red{ color:var(--red-dark); background:#FCE4E1; }
.member__role--yellow{ color:var(--yellow-dark); background:#FFF1CC; }
.member__role--blue{ color:var(--blue); background:#E1EEF9; }
.member__role--green{ color:var(--green); background:#DFF1EB; }

/* License */
.license-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:20px;
  margin-bottom:32px;
}
.license-point{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
}
.license-point h3{ font-size:15px; margin-bottom:6px; color:var(--red-dark); }
.license-point p{ font-size:14px; margin:0; }

.license-full{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px 22px;
}
.license-full summary{
  cursor:pointer;
  font-weight:600;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.02em;
}
.license-full__body{
  margin-top:18px;
  max-height:420px;
  overflow-y:auto;
  padding-right:12px;
  border-top:1px solid var(--line);
  padding-top:16px;
}
.license-full__body h4{ font-size:14px; margin:20px 0 6px; color:var(--ink); }
.license-full__body h4:first-child{ margin-top:0; }
.license-full__body p{ font-size:13.5px; }

/* Download */
.download{
  background:var(--ink);
  color:var(--white);
}
.download__inner{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:48px;
  align-items:center;
}
.download h2{ color:var(--white); }
.download p{ color:#C7C8D1; max-width:52ch; }
.download code{
  background:rgba(255,255,255,.08);
  padding:2px 6px;
  border-radius:4px;
  color:var(--yellow);
}
.download__actions{ display:flex; gap:12px; flex-wrap:wrap; margin-top:24px; }

.iso-card{
  background:#1A1C24;
  border:1px solid #2A2C36;
  border-radius:var(--radius-lg);
  padding:26px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.iso-card__label{ font-family:var(--font-mono); font-size:11px; color:#8A8C99; letter-spacing:.08em; text-transform:uppercase; }
.iso-card__name{ font-family:var(--font-mono); font-size:20px; color:var(--yellow); word-break:break-all; }
.iso-card__arch{ font-family:var(--font-mono); font-size:12px; color:#8A8C99; }
.iso-card__status{
  align-self:flex-start;
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink);
  background:var(--yellow);
  padding:4px 10px;
  border-radius:999px;
  margin-top:6px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer{
  background:var(--paper-alt);
  border-top:1px solid var(--line);
  padding:32px 0;
}
.footer__row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:20px;
}
.footer__brand{ display:flex; align-items:center; gap:10px; }
.footer__brand div{ display:flex; flex-direction:column; }
.footer__copy{ font-size:12px; color:var(--ink-soft); }
.footer__links{ display:flex; gap:22px; flex-wrap:wrap; }
.footer__links a{ font-size:13px; color:var(--ink-soft); }
.footer__links a:hover{ color:var(--red); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px){
  .hero__row{ grid-template-columns:1fr; }
  .compare{ grid-template-columns:1fr; }
  .features{ grid-template-columns:1fr; }
  .team{ grid-template-columns:1fr 1fr; }
  .license-grid{ grid-template-columns:1fr; }
  .download__inner{ grid-template-columns:1fr; }
}

@media (max-width: 760px){
  .nav{
    position:absolute;
    top:100%; left:0; right:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    flex-direction:column;
    padding:16px 24px;
    gap:14px;
    display:none;
  }
  .nav.open{ display:flex; }
  .header__actions .btn--ghost{ display:none; }
  .nav-toggle{ display:flex; }
  .team{ grid-template-columns:1fr 1fr; }
  .hero__stats{ gap:20px; flex-wrap:wrap; }
}