/* Helixar Phase 10 - Swiss high-contrast × jewel/luxury dark mode */
:root{
  --bg:          #09090B;
  --surface:     #141416;
  --surface-2:   #1C1C1F;
  --border:      #27272A;
  --border-2:    #3F3F46;
  --fg:          #FAFAFA;
  --fg-2:        #A1A1AA;
  --fg-3:        #71717A;
  --amber:       #FFB01A;
  --amber-deep:  #E89A00;
  --orange:      #FF6B00;
  --cyan:        #00E5FF;
  --red:         #FF4D4D;
  --green:       #4ADE80;
}
*{box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:'Manrope',system-ui,sans-serif;font-weight:400}
body{min-height:100vh;overflow-x:hidden}
.h-sans{font-family:'Outfit',system-ui,sans-serif;letter-spacing:-0.02em}
.h-mono{font-family:'JetBrains Mono',ui-monospace,monospace;letter-spacing:0}

/* container */
.container-1400{max-width:1400px;margin:0 auto;padding:0 32px}

/* section number */
.section-num{font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:500;letter-spacing:0.14em;color:var(--amber);text-transform:uppercase}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;font-family:'Manrope',sans-serif;font-weight:600;font-size:14px;letter-spacing:0.01em;border:1px solid transparent;cursor:pointer;transition:all .18s ease;text-decoration:none}
.btn-primary{background:var(--amber);color:#0A0A0A}
.btn-primary:hover{background:#fff;color:#0A0A0A}
.btn-ghost{background:transparent;color:var(--fg);border-color:var(--border-2)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}

/* pulse */
.pulse-dot{width:6px;height:6px;background:var(--amber);border-radius:50%;position:relative;display:inline-block}
.pulse-dot::after{content:'';position:absolute;inset:-4px;border-radius:50%;background:var(--amber);opacity:.4;animation:pulse 2s infinite}
.pulse-dot.green{background:var(--green)}
.pulse-dot.green::after{background:var(--green)}
.pulse-dot.cyan{background:var(--cyan)}
.pulse-dot.cyan::after{background:var(--cyan)}
@keyframes pulse{0%{transform:scale(.6);opacity:.5}100%{transform:scale(2.4);opacity:0}}

/* grid gap-px technique */
.bento{display:grid;gap:1px;background:var(--border)}
.cell{background:var(--bg)}
.surface{background:var(--surface)}

/* link underline */
.nav-a{position:relative;color:var(--fg-2);font-size:13px;font-weight:500;text-decoration:none;padding:6px 0;transition:color .15s}
.nav-a::after{content:'';position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--amber);transition:width .25s ease}
.nav-a:hover{color:var(--fg)}
.nav-a:hover::after{width:100%}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* marquee */
.marquee{display:flex;gap:48px;animation:scroll 45s linear infinite;width:max-content}
@keyframes scroll{to{transform:translateX(-50%)}}

/* scrollbars */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border-2)}