:root{
  --bg: #0B1120;
  --bg-alt: #0F1729;
  --card: #121B30;
  --border: #223049;
  --text: #F5F7FA;
  --text-dim: #94A3B8;
  --accent: #00D9C0;
  --accent-dim: #0A6E63;
  --gold: #FFB020;

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

  --radius: 14px;
  --container: 1180px;
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 .5em;
  font-weight: 600;
}

p{ margin: 0 0 1em; color: var(--text-dim); }

a{ color: inherit; text-decoration: none; }

ul{ margin:0; padding:0; list-style:none; }

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

.text-accent{ color: var(--accent); }

/* subtle grain overlay for texture */
.noise-overlay{
  position: fixed; inset:0; pointer-events:none; z-index: 1;
  opacity: .035;
  background-image: radial-gradient(circle, #fff 1px, transparent 1px);
  background-size: 3px 3px;
}

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{ background: var(--accent); color: #06231F; }
.btn-primary:hover{ background: #22e6cf; }
.btn-outline{ border-color: var(--border); color: var(--text); }
.btn-outline:hover{ border-color: var(--accent); color: var(--accent); }
.btn-ghost{ color: var(--text-dim); }
.btn-ghost:hover{ color: var(--text); }
.btn-lg{ padding: 15px 30px; font-size: 1.05rem; }

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11,17,32,.75);
  border-bottom: 1px solid var(--border);
}
.header-inner{ position: relative; }
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 18px 24px;
}
.logo{
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -.02em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.logo-mark{
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
}
.logo span{ color: var(--accent); }
.main-nav{ display:flex; gap: 28px; }
.main-nav a{ color: var(--text-dim); font-size:.95rem; font-weight:500; transition: color .15s; }
.main-nav a:hover{ color: var(--text); }
.header-actions{ display:flex; align-items:center; gap: 14px; }
.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span{ width:22px; height:2px; background: var(--text); display:block; }

/* ---------- hero ---------- */
.hero{ padding: 90px 0 70px; overflow: hidden; }
.hero-inner{
  display:grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items:center;
}
.eyebrow{
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: .85rem;
  letter-spacing: .04em;
  margin-bottom: 14px;
}
.hero-copy h1{
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  letter-spacing: -.02em;
}
.hero-sub{ font-size: 1.1rem; max-width: 46ch; }
.hero-cta{ display:flex; gap: 14px; flex-wrap:wrap; margin: 26px 0 14px; }
.hero-note{ font-size: .9rem; color: var(--text-dim); }
.hero-note strong{ color: var(--text); }

.hero-visual{ position:relative; }
.hero-banner-img{
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  display: block;
  object-fit: cover;
  max-height: 260px;
}
.hero-banner-img[src=""]{ display:none; }
.terminal-card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.6);
}
.terminal-bar{
  display:flex; align-items:center; gap:8px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.dot{ width:10px; height:10px; border-radius:50%; }
.dot-red{ background:#FF5F57; } .dot-yellow{ background:#FEBC2E; } .dot-green{ background:#28C840; }
.terminal-title{ margin-left: 8px; font-family: var(--font-mono); font-size: .8rem; color: var(--text-dim); }
.terminal-body{
  font-family: var(--font-mono);
  font-size: .85rem;
  padding: 18px 16px;
  min-height: 180px;
  color: #B8F5EC;
  white-space: pre-wrap;
}
.terminal-body .prompt{ color: var(--accent); }

.stat-chip{
  position:absolute;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 16px;
  display:flex; align-items:baseline; gap:2px; flex-wrap:wrap;
  font-family: var(--font-mono);
  box-shadow: 0 20px 40px -15px rgba(0,0,0,.5);
}
.stat-value{ font-size: 1.4rem; font-weight:600; color: var(--accent); }
.stat-unit{ font-size: .9rem; color: var(--accent); }
.stat-label{ width:100%; font-family: var(--font-body); font-size: .72rem; color: var(--text-dim); }
.stat-chip-1{ top: -18px; right: 24px; }
.stat-chip-2{ bottom: -18px; left: -10px; }

/* ---------- sections ---------- */
.section{ padding: 90px 0; }
.section-alt{ background: var(--bg-alt); }
.section-head{ max-width: 640px; margin: 0 auto 50px; text-align:center; }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); }
.section-sub{ font-size: 1.05rem; }

/* ---------- plans ---------- */
.plans-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.plan-card{
  position:relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align:center;
  transition: transform .2s ease, border-color .2s ease;
}
.plan-card:hover{ transform: translateY(-6px); border-color: var(--accent); }
.plan-featured{ border-color: var(--accent); background: linear-gradient(180deg, rgba(0,217,192,.08), var(--card) 40%); }
.plan-badge{
  position:absolute; top:-13px; left:50%; transform:translateX(-50%);
  background: var(--accent); color:#06231F;
  font-size:.72rem; font-weight:700; padding:5px 14px; border-radius:999px;
}
.plan-icon{ font-size: 1.8rem; margin-bottom: 6px; }
.plan-name{ font-size: 1.2rem; }
.plan-price{ font-size: 2.1rem; font-weight:700; color: var(--text); margin-bottom: 18px; }
.plan-price span{ font-size: 1rem; vertical-align: top; color: var(--text-dim); }
.plan-price small{ font-size: .95rem; font-weight:500; color: var(--text-dim); }
.plan-features{ text-align:left; margin: 0 0 26px; }
.plan-features li{
  padding: 9px 0; border-bottom: 1px solid var(--border);
  font-size: .92rem; color: var(--text-dim);
}
.plan-features li:last-child{ border-bottom:none; }
.plan-cta{ width:100%; }

/* ---------- split sections ---------- */
.split{ display:grid; grid-template-columns: 1fr 1fr; gap:60px; align-items:center; }
.split-reverse .split-copy{ order:2; }
.feature-list{ margin: 22px 0 28px; }
.feature-list li{ padding: 10px 0; border-bottom: 1px solid var(--border); }
.feature-list li:last-child{ border-bottom:none; }
.feature-list strong{ color: var(--text); }

.mesh-graphic, .shield-graphic{
  aspect-ratio: 1/1;
  border-radius: 24px;
  border: 1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
}
.mesh-graphic{
  background:
    radial-gradient(circle at 30% 30%, rgba(0,217,192,.25), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(255,176,32,.18), transparent 60%),
    var(--card);
}
.shield-graphic{
  background: var(--card);
  font-size: 5rem;
}

/* ---------- support ---------- */
.section-support{
  background: linear-gradient(135deg, rgba(0,217,192,.1), rgba(11,17,32,0)), var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.support-inner{ text-align:center; max-width: 640px; margin: 0 auto; }
.support-inner .hero-cta{ justify-content:center; }

/* ---------- testimonials ---------- */
.testimonial-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.testimonial-card{
  background: var(--card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 26px; margin:0; font-style: normal;
}
.testimonial-card p{ color: var(--text); font-size: .98rem; }
.testimonial-card footer{ color: var(--accent); font-size:.85rem; font-weight:600; }

/* ---------- cta final ---------- */
.cta-final-inner{ text-align:center; max-width:560px; margin:0 auto; }
.cta-final h2{ font-size: clamp(1.7rem,3vw,2.3rem); }

/* ---------- footer ---------- */
.site-footer{ background: var(--bg-alt); border-top: 1px solid var(--border); padding-top: 60px; }
.footer-inner{
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px;
}
.footer-brand p{ font-size:.9rem; max-width: 28ch; }
.footer-col h4{ font-size: .85rem; text-transform: uppercase; letter-spacing:.06em; color: var(--text-dim); margin-bottom: 14px; }
.footer-col a, .footer-col p{ display:block; font-size:.92rem; color: var(--text-dim); margin-bottom: 10px; }
.footer-col a:hover{ color: var(--accent); }
.footer-bottom{
  border-top: 1px solid var(--border);
  padding: 22px 24px;
  text-align:center;
  font-size: .82rem;
  color: var(--text-dim);
}

/* ---------- terms page ---------- */
.terms-main{ padding: 60px 0 100px; }
.terms-header{ max-width: 720px; margin: 0 auto 50px; text-align:center; }
.terms-updated{ font-family: var(--font-mono); font-size:.8rem; color: var(--accent); }
.terms-body{ max-width: 760px; margin: 0 auto; }
.terms-body h2{ font-size: 1.3rem; margin-top: 44px; }
.terms-body h2:first-child{ margin-top:0; }
.terms-body p, .terms-body li{ color: var(--text-dim); font-size: .98rem; }
.terms-body ul{ list-style: disc; padding-left: 22px; margin-bottom: 1em; }
.terms-body li{ margin-bottom: 8px; }
.terms-toc{
  background: var(--card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 22px 26px; margin-bottom: 50px;
}
.terms-toc h3{ font-size: 1rem; margin-bottom: 12px; }
.terms-toc ol{ list-style: decimal; padding-left: 20px; }
.terms-toc li{ margin-bottom: 6px; }
.terms-toc a{ color: var(--text-dim); font-size:.92rem; }
.terms-toc a:hover{ color: var(--accent); }

/* ---------- error pages (404 / 500) ---------- */
.error-main{
  min-height: 70vh;
  display:flex;
  align-items:center;
  padding: 80px 0;
}
.error-inner{
  max-width: 640px;
  margin: 0 auto;
  text-align:center;
}
.error-code{
  font-size: clamp(4rem, 12vw, 7rem);
  color: var(--accent);
  letter-spacing: -.03em;
  margin-bottom: 6px;
}
.error-inner h2{ font-size: clamp(1.4rem, 3vw, 1.9rem); }
.error-sub{ font-size: 1.05rem; margin-bottom: 34px; }
.error-terminal{ text-align:left; margin: 0 auto 34px; max-width: 460px; }
.error-cta{ justify-content:center; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px){
  .main-nav, .header-actions{ display:none; }
  .nav-toggle{ display:flex; }

  .main-nav.nav-open{
    display:flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 20px;
    gap: 4px;
  }
  .main-nav.nav-open a{
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
  }
  .main-nav.nav-open a:last-child{ border-bottom: none; }

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

  .hero-inner{ grid-template-columns: 1fr; }
  .hero-visual{ margin-top: 40px; }
  .plans-grid{ grid-template-columns: repeat(2,1fr); }
  .split{ grid-template-columns: 1fr; }
  .split-reverse .split-copy{ order:0; }
  .testimonial-grid{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px){
  .plans-grid{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; }
  .stat-chip-2{ display:none; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .btn, .plan-card{ transition:none; }
}