/* ============================================================
   ARMENTO — Dark cyber theme
   ============================================================ */

:root {
  --bg: #04070d;
  --bg-2: #070b14;
  --surface: #0b111d;
  --surface-2: #0e1626;
  --border: #1a2438;
  --border-glow: #8a9a5233;
  --text: #e7eef7;
  --text-dim: #8a98ad;
  --text-faint: #5a6678;
  --accent: #8a9a52;
  --accent-2: #5c6b34;
  --accent-glow: #8a9a52;
  --danger: #ff4d6d;
  --ok: #3ce8a0;
  --radius: 14px;
  --radius-lg: 22px;
  --maxw: 1180px;
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-head);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---------- Animated background ---------- */
.bg-grid, .bg-glow, .bg-scanline {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}
.bg-grid {
  background-image:
    linear-gradient(to right, #ffffff08 1px, transparent 1px),
    linear-gradient(to bottom, #ffffff08 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 80%);
}
.bg-glow {
  z-index: -1;
  background:
    radial-gradient(620px circle at 15% 0%, #8a9a521f, transparent 60%),
    radial-gradient(680px circle at 90% 10%, #5c6b341c, transparent 60%);
}
.bg-scanline {
  background: repeating-linear-gradient(to bottom, #ffffff03 0 1px, transparent 1px 3px);
  opacity: 0.35;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 13px 24px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s, border-color 0.25s;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent), #6a7a3c);
  color: #03121a;
  font-weight: 700;
  box-shadow: 0 0 0 1px #8a9a5255, 0 8px 30px -8px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px #8a9a52, 0 14px 40px -10px var(--accent-glow); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-block { width: 100%; justify-content: center; margin-top: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: #060a12cc;
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand-logo { height: 30px; border-radius: 6px; }
.nav { display: flex; gap: 30px; margin-left: auto; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-dim);
  position: relative;
  transition: color 0.2s;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 1.5px; background: var(--accent);
  transition: width 0.25s var(--ease);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 14px; }

.lang-toggle {
  display: flex; align-items: center; gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  cursor: pointer;
  transition: border-color 0.2s;
}
.lang-toggle:hover { border-color: var(--accent); }
.lang-opt { transition: color 0.2s; }
.lang-opt.active { color: var(--accent); }
.lang-sep { color: var(--text-faint); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Typography helpers ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.7rem, 3.6vw, 2.7rem);
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.section { padding: clamp(72px, 11vw, 130px) 0; }
.section-head { margin-bottom: 56px; }

/* ---------- Hero ---------- */
.hero {
  padding-top: 150px;
  padding-bottom: 70px;
  position: relative;
}
.hero-inner { max-width: 860px; }
.hero-title {
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero-title span { display: block; }
.accent {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text-dim);
  max-width: 60ch;
  margin-bottom: 36px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.stat { display: flex; flex-direction: column; gap: 6px; }
.stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}
.stat-label { font-size: 0.86rem; color: var(--text-faint); }

/* ---------- armentOS feature ---------- */
.feature {
  position: relative;
  background:
    radial-gradient(700px circle at 80% 20%, #8a9a5214, transparent 55%),
    var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.feature-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.feature-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--accent);
  border: 1px solid var(--border-glow);
  background: #8a9a520d;
  padding: 6px 12px; border-radius: 999px;
  margin-bottom: 20px;
}
.feature-badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.feature h2 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.05;
  margin-bottom: 18px;
}
.feature h2 .os { color: var(--accent-2); }
.feature-lead { color: var(--text-dim); font-size: 1.1rem; max-width: 50ch; margin-bottom: 28px; }
.feature-list { list-style: none; display: grid; gap: 14px; }
.feature-list li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 0.98rem; color: var(--text);
}
.feature-list li::before {
  content: "▸"; color: var(--accent); font-family: var(--font-mono);
  margin-top: 1px;
}
.feature-list li b { color: var(--text); }
.feature-list li span { color: var(--text-dim); }

/* device mock */
.feature-visual {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  padding: 18px;
  box-shadow: 0 30px 80px -30px #000, inset 0 1px 0 #ffffff0d;
}
.feature-visual .scr {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #060a12;
  overflow: hidden;
}
.scr-top {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-faint);
}
.scr-top .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border); }
.scr-top .dot:nth-child(1) { background: #ff5f57; }
.scr-top .dot:nth-child(2) { background: #febc2e; }
.scr-top .dot:nth-child(3) { background: #28c840; }
.scr-top span:last-child { margin-left: auto; }
.scr-body { padding: 18px; display: grid; gap: 14px; }
.scr-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.scr-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
}
.scr-tile .k { font-family: var(--font-mono); font-size: 0.66rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.06em; }
.scr-tile .v { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700; color: var(--accent); margin-top: 4px; }
.scr-chart { display: flex; align-items: flex-end; gap: 6px; height: 90px; padding: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }
.scr-chart i { flex: 1; background: linear-gradient(180deg, var(--accent), #6a7a3c33); border-radius: 4px 4px 0 0; animation: barpulse 3s var(--ease) infinite; }
@keyframes barpulse { 0%,100%{opacity:.55;} 50%{opacity:1;} }
.scr-line { height: 8px; border-radius: 6px; background: var(--surface); border: 1px solid var(--border); overflow: hidden; position: relative; }
.scr-line::after { content:""; position:absolute; inset:0; width:62%; background: linear-gradient(90deg, var(--accent-2), var(--accent)); animation: scan 4s var(--ease) infinite; }
@keyframes scan { 0%{transform:translateX(-30%);} 50%{transform:translateX(60%);} 100%{transform:translateX(-30%);} }

/* ---------- Service cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative;
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px 32px;
  transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px circle at var(--mx,50%) var(--my,0%), #8a9a5214, transparent 60%);
  opacity: 0; transition: opacity 0.4s;
}
.card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: 0 24px 60px -28px var(--accent-glow); }
.card:hover::before { opacity: 1; }
.card-index { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-faint); }
.card-icon {
  width: 50px; height: 50px; margin: 18px 0 18px;
  display: grid; place-items: center;
  border: 1px solid var(--border-glow);
  border-radius: 12px; color: var(--accent);
  background: #8a9a520a;
}
.card-icon svg { width: 26px; height: 26px; }
.card-title { font-size: 1.3rem; font-weight: 600; margin-bottom: 12px; letter-spacing: -0.01em; }
.card-text { color: var(--text-dim); font-size: 0.97rem; }

/* ---------- Capabilities grid ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.cap {
  background: var(--bg-2);
  padding: 26px 24px;
  transition: background 0.3s;
  display: flex; flex-direction: column; gap: 8px;
}
.cap:hover { background: var(--surface-2); }
.cap-ico { color: var(--accent); width: 24px; height: 24px; }
.cap-ico svg { width: 24px; height: 24px; }
.cap h3 { font-size: 1.05rem; font-weight: 600; }
.cap p { font-size: 0.9rem; color: var(--text-dim); }

/* ---------- Sectors ---------- */
.sectors { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.sector {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  background: var(--surface);
  position: relative;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.sector:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.sector-num { font-family: var(--font-mono); font-size: 0.74rem; color: var(--accent); }
.sector h3 { font-size: 1.15rem; font-weight: 600; margin: 14px 0 8px; }
.sector p { font-size: 0.88rem; color: var(--text-dim); }

/* ---------- About ---------- */
.about { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-text p { color: var(--text-dim); margin-top: 16px; }
.check-list { list-style: none; margin-top: 26px; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 12px; align-items: center; font-family: var(--font-mono); font-size: 0.9rem; }
.check-list li::before {
  content: "✓"; color: var(--bg); background: var(--accent);
  width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center;
  font-size: 0.8rem; font-weight: 700; flex-shrink: 0;
}

/* terminal */
.terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #060a12;
  overflow: hidden;
  box-shadow: 0 30px 70px -30px #000;
}
.terminal-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.terminal-bar .dot { width: 11px; height: 11px; border-radius: 50%; background: var(--border); }
.terminal-title { margin-left: auto; font-family: var(--font-mono); font-size: 0.74rem; color: var(--text-faint); }
.terminal-body { padding: 22px; font-family: var(--font-mono); font-size: 0.86rem; line-height: 1.9; color: var(--text-dim); overflow-x: auto; }
.t-prompt { color: var(--accent); }
.t-ok { color: var(--ok); }
.t-dim { color: var(--text-faint); }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { border-left: 2px solid var(--border); padding-left: 22px; transition: border-color 0.3s; }
.step:hover { border-left-color: var(--accent); }
.step-num { font-family: var(--font-mono); font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.step h3 { font-size: 1.2rem; margin: 10px 0 8px; font-weight: 600; }
.step p { font-size: 0.92rem; color: var(--text-dim); }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(600px circle at 50% 120%, #8a9a5222, transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  border-top: 1px solid var(--border);
}
.cta-inner { text-align: center; padding: clamp(60px, 9vw, 110px) 0; }
.cta-inner h2 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 700; letter-spacing: -0.02em; }
.cta-inner p { color: var(--text-dim); margin: 14px 0 30px; font-size: 1.1rem; }

/* ---------- Contact ---------- */
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-text p { color: var(--text-dim); margin-top: 14px; max-width: 42ch; }
.contact-list { list-style: none; margin-top: 32px; display: grid; gap: 22px; }
.contact-list li { display: flex; flex-direction: column; gap: 4px; }
.contact-label { font-family: var(--font-mono); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); }
.contact-list a, .contact-list li > span:last-child { font-size: 1.15rem; }
.contact-list a:hover { color: var(--accent); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-dim); margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 14px;
  color: var(--text);
  font-family: var(--font-head);
  font-size: 0.96rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px #8a9a5222;
}
.field input.invalid, .field textarea.invalid { border-color: var(--danger); }
.form-note { font-size: 0.84rem; color: var(--text-faint); text-align: center; margin-top: 14px; }
.form-note.ok { color: var(--ok); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 44px 0; background: var(--bg-2); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-logo { height: 26px; border-radius: 5px; opacity: 0.9; }
.footer-nav { display: flex; gap: 26px; }
.footer-nav a { font-family: var(--font-mono); font-size: 0.84rem; color: var(--text-dim); transition: color 0.2s; }
.footer-nav a:hover { color: var(--accent); }
.footer-copy { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-faint); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .feature-inner, .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .cards, .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .sectors { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; gap: 0;
    background: #060a12f2; backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px 24px;
    transform: translateY(-120%);
    transition: transform 0.4s var(--ease);
    margin-left: 0;
  }
  .nav.open { transform: translateY(0); }
  .nav-link { padding: 14px 0; border-bottom: 1px solid var(--border); width: 100%; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px 20px; }
  .cards, .cap-grid, .sectors, .steps { grid-template-columns: 1fr; }
  .scr-row { grid-template-columns: repeat(3, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.001ms !important; }
}