@import url('https://fonts.googleapis.com/css2?family=Barlow+Semi+Condensed:wght@400;500;600;700;800&family=Barlow:wght@300;400;500;600&family=IBM+Plex+Mono:wght@300;400;500&display=swap');

/* ═══════════════════════════════════════
   RAILON — DESIGN SYSTEM v2
   Dark-first · Indigo accent · Token-based
═══════════════════════════════════════ */

:root {
  /* ── Primary (Indigo) ── */
  --primary:        #6366f1;
  --primary-hover:  #4f46e5;
  --primary-active: #4338ca;
  --primary-soft:   rgba(99,102,241,0.10);
  --primary-border: rgba(99,102,241,0.28);

  /* ── Backgrounds ── */
  --bg:    #060d1a;
  --bg2:   #0a1628;
  --bg3:   #0f1f35;
  --bg-soft: #0a1628;

  /* ── Text ── */
  --text:       #e8edf5;
  --text-muted: #7a8fa8;
  --text-dim:   #4a5f78;

  /* ── Borders ── */
  --border:       rgba(99,102,241,0.20);
  --border-light: rgba(255,255,255,0.06);

  /* ── Legacy aliases ── */
  --blue:           #6366f1;
  --blue-light:     #818cf8;
  --violet:         #6366f1;
  --violet-light:   #a5b4fc;
  --gradient:       linear-gradient(135deg,#6366f1,#4f46e5);
  --gradient-subtle:linear-gradient(135deg,rgba(99,102,241,.10),rgba(79,70,229,.10));

  /* ── Semantic ── */
  --success: #22c55e;
  --warning: #f59e0b;
  --error:   #ef4444;

  /* ── Radius ── */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* ── Shadows ── */
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.25);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.35);

  /* ── Spacing (4pt) ── */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-6:  24px;
  --space-8:  32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* ── Layout ── */
  --container: 1160px;
}

/* ─── RESET ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Barlow',sans-serif;
  font-size:16px;
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
}

/* ─── TYPOGRAPHY ─── */
h1,h2,h3,h4,h5{
  font-family:'Barlow Semi Condensed',sans-serif;
  font-weight:700;
  line-height:1.1;
  letter-spacing:-0.02em;
}
h1{font-size:clamp(2.8rem,6vw,5rem)}
h2{font-size:clamp(2rem,4vw,3rem)}
h3{font-size:clamp(1.1rem,2vw,1.5rem)}
p{color:var(--text-muted)}
.mono{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}

/* ─── FOCUS / ACCESSIBILITY ─── */
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

/* ─── LINKS ─── */
a{color:inherit;text-decoration:none}
a.text-link{color:var(--primary)}
a.text-link:hover{color:var(--primary-hover)}

/* ─── LAYOUT ─── */
.container{max-width:var(--container);margin:0 auto;padding:0 2rem;position:relative;z-index:1}
section{padding:var(--space-20) 0;position:relative}
.section-sm{padding:var(--space-12) 0}
.center{text-align:center}
.glow{position:absolute;border-radius:50%;filter:blur(130px);pointer-events:none;z-index:0}

/* ─── NAV ─── */
nav{
  position:fixed;inset:0 0 auto;z-index:100;
  height:66px;padding:0 2.5rem;
  display:flex;align-items:center;justify-content:space-between;
  background:rgba(6,13,26,.88);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border-light);
  transition:background .3s;
}
.nav-logo{display:flex;align-items:center;gap:.7rem;text-decoration:none}
.nav-logo-mark{
  width:34px;height:34px;background:var(--primary);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-family:'Barlow Semi Condensed',sans-serif;font-weight:800;font-size:1.1rem;color:#fff;
}
.nav-logo-text{font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;font-size:1.2rem;letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:2.2rem;list-style:none}
.nav-links a{color:var(--text-muted);font-size:.88rem;font-weight:500;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-cta{
  background:var(--primary)!important;color:#fff!important;
  padding:.45rem 1.2rem;border-radius:var(--radius-sm);font-weight:600!important;
  transition:background .2s!important;
}
.nav-cta:hover{background:var(--primary-hover)!important}

/* ─── BUTTONS ─── */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.78rem 1.8rem;border-radius:var(--radius-md);
  font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:1rem;
  cursor:pointer;border:none;transition:all .2s;text-decoration:none;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 8px 28px rgba(99,102,241,.35)}
.btn-primary:active{background:var(--primary-active);transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;color:var(--text);border:1px solid var(--primary-border)}
.btn-outline:hover{border-color:var(--primary);color:var(--blue-light);background:var(--primary-soft)}

/* Secondary button alias */
.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--border-light)}
.btn-secondary:hover{border-color:var(--primary-border);color:var(--primary);background:var(--primary-soft)}

/* ─── PILLS / BADGES ─── */
.badge{
  display:inline-flex;align-items:center;gap:.4rem;
  background:var(--primary-soft);border:1px solid var(--primary-border);
  color:var(--blue-light);padding:.28rem .8rem;border-radius:20px;
  font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
}
.pill{
  border:1px solid var(--primary-border);
  color:var(--primary);background:var(--primary-soft);
  padding:.28rem .9rem;border-radius:20px;font-size:.82rem;font-weight:500;
}

/* ─── CARDS ─── */
.card{
  background:var(--bg2);border:1px solid var(--border-light);
  border-radius:var(--radius-lg);padding:var(--space-6);
  box-shadow:var(--shadow-sm);
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.card:hover{border-color:var(--primary-border);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card-icon{
  width:42px;height:42px;background:var(--primary-soft);
  border:1px solid var(--primary-border);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;margin-bottom:1.1rem;
}

/* ─── ARCHITECTURE LAYER (Railon highlight) ─── */
.railon-layer{
  border:1.5px solid var(--primary);
  background:var(--primary-soft);
  padding:var(--space-4);border-radius:var(--radius-lg);
  font-weight:500;
}

/* ─── GRIDS ─── */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-4)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-4)}

/* ─── SECTION HEADER ─── */
.section-header{text-align:center;margin-bottom:3.5rem}
.section-header .badge{margin-bottom:1rem}
.section-header h2{margin-bottom:.8rem}
.section-header p{max-width:560px;margin:0 auto;font-size:1.05rem}

/* ─── TRUST STRIP ─── */
.trust-bar{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:2.5rem;
  padding:1.8rem 0;border-top:1px solid var(--border-light);border-bottom:1px solid var(--border-light);
}
.trust-item{display:flex;align-items:center;gap:.6rem;font-size:.83rem;color:var(--text-muted)}
.trust-dot{width:5px;height:5px;border-radius:50%;background:var(--primary);flex-shrink:0}

/* ─── GRADIENT DIVIDER ─── */
.grad-line{height:1px;background:linear-gradient(90deg,transparent,var(--primary),transparent);opacity:.2}

/* ─── STATS ─── */
.stat-val{
  font-family:'Barlow Semi Condensed',sans-serif;font-size:2.5rem;font-weight:700;
  background:linear-gradient(135deg,#6366f1,#4f46e5);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.stat-label{font-size:.8rem;color:var(--text-dim);margin-top:.2rem}

/* ─── FOOTER ─── */
footer{background:var(--bg2);border-top:1px solid var(--border-light);padding:4rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:2.5rem}
.footer-brand p{color:var(--text-muted);font-size:.85rem;margin-top:.9rem;max-width:260px;line-height:1.7}
.footer-col h5{
  font-family:'IBM Plex Mono',monospace;font-size:.65rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-dim);margin-bottom:1.1rem;
}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:.5rem}
.footer-col ul li a{color:var(--text-muted);font-size:.87rem;transition:color .2s}
.footer-col ul li a:hover{color:var(--text)}
.footer-bottom{
  border-top:1px solid var(--border-light);padding-top:1.8rem;
  display:flex;align-items:flex-start;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;
}
.footer-disc{font-size:.76rem;color:var(--text-dim);max-width:640px;line-height:1.7}
.footer-legal-links{display:flex;gap:1.5rem;flex-shrink:0}
.footer-legal-links a{color:var(--text-dim);font-size:.76rem;transition:color .2s}
.footer-legal-links a:hover{color:var(--text-muted)}

/* ─── FORMS ─── */
.form-group{margin-bottom:var(--space-4)}
.form-group label{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:.4rem;font-family:'IBM Plex Mono',monospace;letter-spacing:.05em}
.form-group input,.form-group textarea,.form-group select{
  width:100%;background:var(--bg3);border:1px solid var(--border-light);
  border-radius:var(--radius-sm);padding:.75rem 1rem;
  color:var(--text);font-family:'Barlow',sans-serif;font-size:.95rem;
  transition:border-color .2s;outline:none;
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--primary)}
.form-group textarea{min-height:120px;resize:vertical}

/* ─── PAGE HERO (inner pages) ─── */
.page-hero{padding-top:9rem;padding-bottom:3rem;text-align:center}
.page-hero h1{font-size:clamp(2.2rem,5vw,3.5rem);margin:1rem 0}

/* ─── LEGAL CONTENT ─── */
.legal-content{max-width:800px;margin:0 auto;padding:2rem 0 6rem}
.legal-content h2{font-size:1.5rem;margin:2.5rem 0 1rem}
.legal-content h3{font-size:1.1rem;margin:1.8rem 0 .6rem;color:var(--blue-light)}
.legal-content p{color:var(--text-muted);margin-bottom:1rem;line-height:1.8}
.legal-content ul{color:var(--text-muted);padding-left:1.5rem;margin-bottom:1rem}
.legal-content ul li{margin-bottom:.4rem;line-height:1.7}
.legal-meta{
  background:var(--bg2);border:1px solid var(--border-light);
  border-radius:var(--radius-md);padding:1.2rem 1.5rem;margin-bottom:2rem;
  font-family:'IBM Plex Mono',monospace;font-size:.78rem;color:var(--text-dim);
  display:flex;gap:2rem;flex-wrap:wrap;
}

/* ─── DARK MODE (system override — site is already dark) ─── */
@media (prefers-color-scheme: dark) {
  :root {
    --primary-soft: rgba(99,102,241,0.12);
  }
}

/* ─── RESPONSIVE ─── */
@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  h1{font-size:2.4rem}
  h2{font-size:1.8rem}
  .nav-links{display:none}
}
@media (max-width:560px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .page-hero{padding-top:7rem;padding-bottom:2rem}
  .page-hero h1{font-size:2rem}
  .container{padding:0 1rem}
  .cta-box{padding:3rem 1.5rem}
  .btn{width:100%;justify-content:center}
}

/* ─── HAMBURGER MENU ─── */
.nav-hamburger{
  display:none;flex-direction:column;justify-content:space-between;
  width:24px;height:18px;background:none;border:none;cursor:pointer;padding:0;
}
.nav-hamburger span{
  display:block;width:100%;height:2px;background:var(--text-muted);
  border-radius:2px;transition:all .25s ease;
}
.nav-hamburger.is-open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-hamburger.is-open span:nth-child(2){opacity:0}
.nav-hamburger.is-open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

@media (max-width:768px){
  .nav-hamburger{display:flex}
  .nav-links{
    display:none;position:fixed;inset:66px 0 0;
    flex-direction:column;align-items:flex-start;
    background:rgba(6,13,26,.98);backdrop-filter:blur(20px);
    padding:2rem 2.5rem;gap:0;z-index:99;
    border-top:1px solid var(--border-light);
  }
  .nav-links.nav-open{display:flex}
  .nav-links li{width:100%;border-bottom:1px solid var(--border-light)}
  .nav-links a{
    display:block;padding:1rem 0;font-size:1.1rem;
    color:var(--text-muted);font-weight:500;
  }
  .nav-links a:hover{color:var(--text)}
  .nav-cta{
    margin-top:1.5rem;width:100%;text-align:center;
    padding:.75rem!important;border-radius:8px!important;
    font-size:1rem!important;
  }
}