/* ============================================
   NSAS — Shared Site Stylesheet
   Used by index.html and all subpages.
   ============================================ */

/* ===== TOKENS ===== */
:root {
  --bg-0:#050709; --bg-1:#090c11; --bg-2:#0f141c; --bg-3:#161e2a;
  --surface:rgba(255,255,255,0.025); --surface-2:rgba(255,255,255,0.05);
  --line:rgba(255,255,255,0.08); --line-hi:rgba(255,255,255,0.18);
  --t-0:#eef1f5; --t-1:#b8c0cc; --t-2:#7c8696; --t-3:#4a5160;
  --cyan:#00d4ff; --violet:#7c5cff; --acid:#b8ff5c; --rust:#ff6b3a; --pink:#ff5cae;
  --glow-cyan:rgba(0,212,255,0.45); --glow-violet:rgba(124,92,255,0.45); --glow-rust:rgba(255,107,58,0.4);
  --sans:'Inter',-apple-system,system-ui,sans-serif; --mono:'JetBrains Mono',monospace; --serif:'Instrument Serif',serif;
  --r-sm:8px; --r-md:14px; --r-lg:22px; --r-xl:36px;
}

/* ===== RESETS ===== */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg-0);color:var(--t-0);font-family:var(--sans);line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased}
::selection{background:var(--cyan);color:var(--bg-0)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;background:none;border:none;color:inherit}

/* ===== BACKGROUND ATMOSPHERE ===== */
.bg-atmosphere{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none}
.bg-grid{position:absolute;inset:-10%;background-image:linear-gradient(rgba(255,255,255,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.025) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse 70% 50% at 50% 30%,black 0%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 70% 50% at 50% 30%,black 0%,transparent 75%)}
.bg-orb{position:absolute;border-radius:50%;filter:blur(110px);pointer-events:none;animation:drift 26s ease-in-out infinite}
.orb-a{width:600px;height:600px;top:-160px;left:-120px;background:radial-gradient(circle,var(--violet),transparent 65%);opacity:0.4}
.orb-b{width:520px;height:520px;top:35%;right:-180px;background:radial-gradient(circle,var(--cyan),transparent 65%);opacity:0.32;animation-delay:-10s}
.orb-c{width:480px;height:480px;bottom:-80px;left:40%;background:radial-gradient(circle,var(--rust),transparent 65%);opacity:0.2;animation-delay:-18s}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(50px,-30px) scale(1.06)}66%{transform:translate(-30px,40px) scale(0.97)}}
@keyframes blink{50%{opacity:0.3}}

/* ===== TYPOGRAPHY UTILITIES ===== */
.mono{font-family:var(--mono)}
.serif{font-family:var(--serif);font-style:italic;font-weight:400}
h1,h2,h3,h4{letter-spacing:-0.025em;line-height:1.05;font-weight:500}
h1{font-size:clamp(3rem,8vw,6.5rem);font-weight:400;line-height:0.95}
h2{font-size:clamp(2.3rem,5vw,4rem);font-weight:400}
h3{font-size:clamp(1.3rem,2vw,1.7rem);font-weight:500}
p{color:var(--t-1)}
.eyebrow{font-family:var(--mono);font-size:0.72rem;text-transform:uppercase;letter-spacing:0.2em;color:var(--t-2);font-weight:500}
.wrap{max-width:1320px;margin:0 auto;padding:0 32px}
@media (max-width:768px){.wrap{padding:0 20px}}
section{padding:120px 0;position:relative}
@media (max-width:768px){section{padding:80px 0}}

/* ===== PAGE BRAND (fixed top-left logo) ===== */
.page-brand{position:fixed;top:0;left:28px;z-index:101;display:block;transition:transform 0.3s}
.page-brand:hover{transform:scale(1.05)}
.page-brand img{height:144px;width:auto;display:block;filter:drop-shadow(0 0 24px rgba(255,107,58,0.42))}
@media (max-width:880px){.page-brand{top:0;left:16px}.page-brand img{height:88px}}

/* ===== NAV (centered pill) ===== */
.nav{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:100;display:flex;align-items:center;gap:4px;padding:6px;background:rgba(9,12,17,0.78);border:1px solid var(--line);border-radius:999px;backdrop-filter:blur(24px) saturate(140%);-webkit-backdrop-filter:blur(24px) saturate(140%)}
.nav .links{display:flex;gap:2px;padding:0 6px}
.nav .links a{padding:8px 14px;font-size:0.85rem;color:var(--t-1);border-radius:999px;transition:all 0.2s}
.nav .links a:hover{color:var(--t-0);background:var(--surface-2)}
.nav .cta{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--t-0);color:var(--bg-0);border-radius:999px;font-size:0.85rem;font-weight:500;transition:all 0.3s}
.nav .cta:hover{background:var(--cyan);box-shadow:0 0 24px var(--glow-cyan)}
@media (max-width:880px){.nav{left:auto;right:14px;transform:none}.nav .links{display:none}}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;gap:12px;padding:16px 28px;border-radius:999px;font-size:0.96rem;font-weight:500;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);border:1px solid transparent;font-family:inherit;will-change:transform}
.btn svg{width:14px;height:14px;transition:transform 0.4s}
.btn:hover svg{transform:translate(3px,-3px)}
.btn-primary{background:var(--t-0);color:var(--bg-0)}
.btn-primary:hover{background:var(--cyan);box-shadow:0 0 32px var(--glow-cyan)}
.btn-ghost{background:var(--surface);color:var(--t-0);border-color:var(--line-hi);backdrop-filter:blur(12px)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--t-0)}

/* ===== FOOTER ===== */
footer{position:relative;padding:120px 0 56px;border-top:1px solid var(--line);overflow:hidden}
footer::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:min(900px,90%);height:480px;background:radial-gradient(ellipse at top,rgba(0,212,255,0.07),transparent 65%);pointer-events:none}
.footer-top{position:relative;display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:64px;margin-bottom:72px}
@media (max-width:980px){.footer-top{grid-template-columns:1fr 1fr;gap:48px}.footer-brand{grid-column:1/-1}}
@media (max-width:560px){.footer-top{grid-template-columns:1fr;gap:40px}}
.footer-brand .footer-logo{height:112px;width:auto;margin-bottom:28px;display:block;filter:drop-shadow(0 0 20px rgba(255,107,58,0.32))}
.footer-brand p{color:var(--t-1);font-size:0.95rem;max-width:42ch;margin-bottom:28px;line-height:1.65}
.footer-brand .info-cluster{padding-top:24px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.footer-brand .loc{font-family:var(--mono);font-size:0.74rem;color:var(--t-1);letter-spacing:0.12em;display:inline-flex;align-items:center;gap:10px}
.footer-brand .loc::before{content:'';width:6px;height:6px;background:var(--cyan);border-radius:50%;box-shadow:0 0 8px var(--cyan);flex-shrink:0}
.footer-brand .reg{font-family:var(--mono);font-size:0.7rem;color:var(--t-3);letter-spacing:0.04em;line-height:1.7}
.footer-col h5{position:relative;font-family:var(--mono);font-size:0.7rem;text-transform:uppercase;letter-spacing:0.2em;color:var(--t-2);margin-bottom:24px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.footer-col h5::after{content:'';position:absolute;bottom:-1px;left:0;width:28px;height:1px;background:var(--cyan)}
.footer-col a{display:block;padding:7px 0;color:var(--t-1);font-size:0.92rem;transition:color 0.2s,transform 0.2s}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-bottom{position:relative;display:flex;justify-content:space-between;align-items:center;padding-top:36px;border-top:1px solid var(--line);font-family:var(--mono);font-size:0.74rem;color:var(--t-3);flex-wrap:wrap;gap:16px;letter-spacing:0.04em}
.footer-bottom .dev{color:var(--t-2);font-weight:500;letter-spacing:0.08em}

/* ===== REVEAL & SCROLL PROGRESS ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity 1s cubic-bezier(0.16,1,0.3,1),transform 1s cubic-bezier(0.16,1,0.3,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.scroll-progress{position:fixed;top:0;left:0;height:2px;background:linear-gradient(to right,var(--violet),var(--cyan),var(--rust));z-index:200;width:0;transition:width 0.1s linear}

/* ===== SUBPAGE LAYOUT (used by about/legal/etc — not on home) ===== */
.page-main{padding:220px 0 80px;position:relative}
@media (max-width:880px){.page-main{padding:160px 0 60px}}
.page-hero{max-width:880px;margin:0 auto;padding:0 32px}
.page-hero .eyebrow{display:inline-block;margin-bottom:24px}
.page-hero h1{font-size:clamp(2.6rem,6vw,4.8rem);margin-bottom:28px;max-width:18ch}
.page-hero h1 .serif{color:var(--t-1)}
.page-hero h1 .cyan{color:var(--cyan)}
.page-hero .lead{font-size:clamp(1.05rem,1.4vw,1.2rem);color:var(--t-1);line-height:1.6;max-width:60ch}
.page-body{max-width:780px;margin:80px auto 0;padding:0 32px;position:relative}
@media (max-width:768px){.page-body{margin-top:56px}}
.page-body .effective{font-family:var(--mono);font-size:0.74rem;color:var(--t-2);padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:48px;letter-spacing:0.05em;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.page-body .effective .draft{color:var(--rust);letter-spacing:0.08em}
.page-body .section{margin-bottom:56px}
.page-body .section:last-child{margin-bottom:0}
.page-body h2{font-size:clamp(1.4rem,2.4vw,1.8rem);margin-bottom:20px;font-weight:500;color:var(--t-0)}
.page-body h3{font-size:1.15rem;margin:28px 0 12px;font-weight:500;color:var(--t-0)}
.page-body p{margin-bottom:14px;line-height:1.7;color:var(--t-1)}
.page-body p strong{color:var(--t-0);font-weight:500}
.page-body ul,.page-body ol{padding-left:24px;margin-bottom:16px}
.page-body li{margin-bottom:10px;line-height:1.65;color:var(--t-1)}
.page-body a{color:var(--cyan);border-bottom:1px solid rgba(0,212,255,0.35);transition:border-color 0.2s}
.page-body a:hover{border-bottom-color:var(--cyan)}
.page-body .callout{margin:28px 0;padding:20px 24px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--cyan);font-size:0.95rem}
.page-body .callout strong{color:var(--cyan);font-family:var(--mono);font-size:0.72rem;letter-spacing:0.1em;text-transform:uppercase;display:block;margin-bottom:8px;font-weight:500}
.page-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:0.9rem}
.page-body table th,.page-body table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
.page-body table th{font-family:var(--mono);font-size:0.72rem;color:var(--t-2);text-transform:uppercase;letter-spacing:0.1em;font-weight:500}
.page-body table td{color:var(--t-1)}

/* Subpage hero atmosphere (left-aligned radial glow at top) */
.page-main::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:min(1100px,95%);height:520px;background:radial-gradient(ellipse at top,rgba(0,212,255,0.06),transparent 65%);pointer-events:none;z-index:-1}