/* ============================================================
   MAYLEVEN DESIGN SYSTEM — CIDA ECOSYSTEM
   Royal Blue #002fa7 · Sterling Silver / Satin Brushed Steel
   Tier 1 corporate dark theme, data-visualisation aesthetic
   NOTE: no oklch() anywhere — hex/hsl/rgb only for universal
   compatibility (Telegram in-app browser, older Safari).
   ============================================================ */

:root{
  /* core brand */
  --royal:#002fa7;
  --royal-lift:#1a49c9;
  --royal-deep:#001b63;
  --royal-glow:rgba(0,47,167,.42);

  /* steel */
  --steel-100:#f4f6f9;
  --steel-200:#dfe4ea;
  --steel-300:#b9c0cb;
  --steel-400:#9aa3b2;
  --steel-500:#7b8494;
  --steel-600:#5b6474;

  /* surfaces */
  --ink-000:#04060c;
  --ink-050:#070a13;
  --ink-100:#0a0e1a;
  --ink-200:#0f1523;
  --ink-300:#151d2f;
  --ink-400:#1d283e;

  --line:rgba(185,192,203,.14);
  --line-strong:rgba(185,192,203,.26);

  --text:#e9edf4;
  --text-dim:#a4aebf;
  --text-mute:#6d788b;

  --accent-cyan:#3ec9f5;
  --accent-mint:#38e0b0;
  --accent-amber:#f2b135;
  --accent-violet:#8b6cf6;

  --grad-steel:linear-gradient(135deg,#f4f6f9 0%,#b9c0cb 18%,#eef1f5 34%,#8d95a3 50%,#dfe4ea 66%,#9aa3b2 82%,#e8ecf1 100%);
  --grad-royal:linear-gradient(135deg,#002fa7 0%,#1a49c9 55%,#0a1f6b 100%);

  --r-sm:6px; --r-md:12px; --r-lg:18px; --r-xl:26px;
  --shadow-1:0 1px 2px rgba(0,0,0,.5);
  --shadow-2:0 10px 30px rgba(0,0,0,.45);
  --shadow-3:0 28px 80px rgba(0,0,0,.6);

  --maxw:1240px;
  --font-sans:"Inter","Helvetica Neue",Helvetica,Arial,system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-000);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.1;letter-spacing:-.022em;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(0,47,167,.55);color:#fff}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:104px 0;position:relative}
.section--tight{padding:72px 0}
@media(max-width:760px){ .section{padding:68px 0} .wrap{padding:0 18px} }

/* ---------- ambient backdrops ---------- */
.grid-bg{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(185,192,203,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(185,192,203,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 78%);
}
.orb{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none}
.orb--royal{background:radial-gradient(circle,rgba(0,47,167,.55),transparent 68%)}
.orb--steel{background:radial-gradient(circle,rgba(185,192,203,.14),transparent 68%)}

/* ---------- brand mark ---------- */
.mv-mark{display:block}
.brand-lockup{display:flex;flex-direction:column;align-items:center;gap:12px}
.brand-lockup .mv-mark{width:64px;height:auto}
.wordmark{
  font-weight:700;letter-spacing:.34em;font-size:13px;
  background:var(--grad-steel);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.tagline{font-size:9px;letter-spacing:.3em;color:var(--text-mute);text-transform:uppercase}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(4,6,12,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);transition:background .3s}
.nav__in{display:flex;align-items:center;justify-content:space-between;height:66px;
  max-width:var(--maxw);margin:0 auto;padding:0 24px}
.nav__brand{display:flex;align-items:center;gap:11px}
.nav__brand .mv-mark{width:26px;height:auto}
.nav__brand-text{display:flex;flex-direction:column;line-height:1}
.nav__name{font-size:13.5px;font-weight:600;letter-spacing:.06em;color:var(--steel-100)}
.nav__role{font-size:8.5px;letter-spacing:.24em;color:var(--text-mute);text-transform:uppercase;margin-top:3px}
.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{font-size:13px;color:var(--text-dim);transition:color .2s}
.nav__links a:hover{color:var(--steel-100)}
.nav__toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  width:38px;height:34px;color:var(--text);cursor:pointer;align-items:center;justify-content:center}
@media(max-width:900px){
  .nav__links{position:fixed;top:66px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(7,10,19,.98);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .34s ease;align-items:stretch}
  .nav__links.open{max-height:420px}
  .nav__links a{padding:15px 22px;border-bottom:1px solid var(--line);font-size:14px}
  .nav__links .btn{margin:16px 22px}
  .nav__toggle{display:flex}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:13.5px;font-weight:600;
  letter-spacing:.02em;cursor:pointer;border:1px solid transparent;transition:.22s;white-space:nowrap}
.btn--primary{background:var(--grad-royal);color:#fff;box-shadow:0 6px 22px var(--royal-glow)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px var(--royal-glow)}
.btn--steel{background:var(--grad-steel);color:#0a0e1a;box-shadow:var(--shadow-1)}
.btn--steel:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn--ghost{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.02)}
.btn--ghost:hover{border-color:var(--steel-400);background:rgba(255,255,255,.05)}

/* ---------- eyebrow / chips ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(0,47,167,.1);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--steel-300)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent-mint);
  box-shadow:0 0 0 3px rgba(56,224,176,.18)}
.dot--live{animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- typography scale ---------- */
.h-display{font-size:clamp(2.4rem,6.2vw,4.5rem);font-weight:650;letter-spacing:-.035em;line-height:1.02}
.h-section{font-size:clamp(1.75rem,3.6vw,2.7rem);letter-spacing:-.03em}
.h-card{font-size:1.14rem;font-weight:600;letter-spacing:-.015em}
.lead{font-size:clamp(1rem,1.5vw,1.17rem);color:var(--text-dim);line-height:1.72}
.small{font-size:13.5px;color:var(--text-dim);line-height:1.68}
.mono{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-mute)}
.steel-text{background:var(--grad-steel);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent}
.royal-text{color:#5f86ff}

/* ---------- section heading block ---------- */
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head .eyebrow{margin-bottom:20px}
.sec-head h2{margin-bottom:18px}

/* ---------- cards ---------- */
.card{background:linear-gradient(160deg,rgba(21,29,47,.9),rgba(10,14,26,.86));
  border:1px solid var(--line);border-radius:var(--r-md);padding:28px;position:relative;
  transition:.26s;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(185,192,203,.4),transparent);opacity:.6}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow-2)}
.card__icon{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(0,47,167,.16);border:1px solid rgba(95,134,255,.22);margin-bottom:18px}
.card__icon svg{width:20px;height:20px;stroke:#7fa0ff;fill:none;stroke-width:1.7}
.card h3{margin-bottom:10px}
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid--2,.grid--3,.grid--4{grid-template-columns:1fr}}

/* ---------- metric strip ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.metric{background:var(--ink-100);padding:26px 22px}
.metric__v{font-family:var(--font-mono);font-size:1.85rem;font-weight:600;color:var(--steel-100);letter-spacing:-.02em}
.metric__l{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--text-mute);margin-top:7px}
@media(max-width:760px){.metrics{grid-template-columns:repeat(2,1fr)}}

/* ---------- CIDA ecosystem strip ---------- */
.eco{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.eco a{display:block;padding:20px 18px;border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(15,21,35,.7);transition:.24s}
.eco a:hover{border-color:#3d5bd0;background:rgba(0,47,167,.12);transform:translateY(-3px)}
.eco__role{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.22em;color:var(--text-mute);text-transform:uppercase}
.eco__name{font-size:14.5px;font-weight:600;margin-top:8px;color:var(--steel-100)}
.eco__d{font-size:12px;color:var(--text-dim);margin-top:7px;line-height:1.55}
.eco a[aria-current="page"]{border-color:#5f86ff;background:rgba(0,47,167,.18)}
@media(max-width:1000px){.eco{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.eco{grid-template-columns:1fr}}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);background:var(--ink-050);padding:64px 0 34px}
.footer__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer h4{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-mute);margin-bottom:16px}
.footer li{margin-bottom:10px}
.footer li a{font-size:13.5px;color:var(--text-dim);transition:color .2s}
.footer li a:hover{color:var(--steel-100)}
.footer__brand .mv-mark{width:34px;margin-bottom:14px}
.footer__bot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:26px;border-top:1px solid var(--line);font-size:12px;color:var(--text-mute)}
@media(max-width:860px){.footer__top{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer__top{grid-template-columns:1fr}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- canonical definition (Chairman's exact wording) ---------- */
.canon{position:relative;margin:0 0 26px;padding:18px 22px 18px 24px;
  border-left:2px solid #5f86ff;border-radius:0 var(--r-md) var(--r-md) 0;
  background:linear-gradient(90deg,rgba(0,47,167,.20),rgba(15,21,35,.28) 70%,transparent)}
.canon__t{font-size:clamp(1.02rem,1.9vw,1.32rem);font-weight:600;line-height:1.44;
  letter-spacing:-.012em;color:#eef1f7}
.canon__ro{display:block;margin-top:9px;font-size:13px;font-style:italic;color:var(--text-mute);line-height:1.55}
@media(max-width:620px){.canon{padding:15px 16px 15px 18px}}

/* ---------- RONOR attribution ---------- */
.ronor-line{display:flex;align-items:flex-start;gap:11px;margin-top:26px;padding:13px 17px;
  border:1px solid rgba(56,224,176,.24);border-radius:var(--r-sm);background:rgba(56,224,176,.055)}
.ronor-line svg{width:15px;height:15px;flex:none;margin-top:2px;stroke:#38e0b0;fill:none;stroke-width:1.7}
.ronor-line span{font-size:12.6px;line-height:1.6;color:var(--text-dim)}
.ronor-line b{color:#7ff0cd;font-weight:600}
.footer .ronor-line{margin-top:20px;max-width:520px}

/* ---------- real Mayleven logo image (master artwork) ---------- */
.mv-logo{display:block;width:auto;height:36px;flex:none;
  filter:drop-shadow(0 1px 2px rgba(0,0,0,.45))}
.nav__brand .mv-logo{height:34px}
.footer__brand .mv-logo{height:46px;margin-bottom:14px}
@media(max-width:620px){
  .nav__brand .mv-logo{height:28px}
  .footer__brand .mv-logo{height:40px}
}
/* on a light surface, swap to the dark variant instead of inverting */
.on-light .mv-logo{filter:none}