/* ===== Design tokens (Syntactic Logic) ===== */
:root{
  --background:#0e141a;
  --surface:#0e141a;
  --surface-container-lowest:#080f14;
  --surface-container-low:#161c22;
  --surface-container:#1a2026;
  --surface-container-high:#242b31;
  --surface-container-highest:#2f353c;
  --surface-variant:#2f353c;
  --surface-bright:#333a40;
  --on-surface:#dde3eb;
  --on-surface-variant:#bcc9cd;
  --on-background:#dde3eb;
  --outline:#869397;
  --outline-variant:#3d494c;
  --primary:#4cd7f6;
  --on-primary:#003640;
  --primary-container:#06b6d4;
  --secondary:#ffb95f;
  --on-secondary:#472a00;

  --container-max:1280px;
  --gutter:24px;
  --margin-mobile:20px;
  --stack-sm:8px;
  --stack-md:16px;
  --stack-lg:32px;
  --section-gap:120px;

  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
}

/* ===== Reset / base ===== */
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--background);color:var(--on-background);
  font-family:var(--font-body);font-size:16px;line-height:24px;
  -webkit-font-smoothing:antialiased;transition:background-color .3s,color .3s;
}
body.light{
  --background:#f5f7fa;--surface:#ffffff;--surface-container-lowest:#eef1f5;
  --surface-container-low:#ffffff;--surface-container:#f0f3f7;--surface-container-high:#e6eaf0;
  --surface-container-highest:#dde3eb;--surface-variant:#e2e8f0;--on-surface:#11181f;
  --on-surface-variant:#475059;--on-background:#11181f;--outline:#5b6770;--outline-variant:#c4ccd4;
  --primary:#0891b2;--primary-container:#06b6d4;--secondary:#d97706;
}
a{text-decoration:none;color:inherit;}
img{display:block;max-width:100%;}
.mono{font-family:var(--font-mono);}
.material-symbols-outlined{font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 24;vertical-align:middle;line-height:1;}
.ico-sm{font-size:14px;}
.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--gutter);}
::selection{background:rgba(76,215,246,.3);}
.cyan{color:var(--primary);}
.amber{color:var(--secondary);}
.cyan-bg{background:var(--primary);}
.amber-bg{background:var(--secondary);}

/* ===== Navigation ===== */
.nav{position:fixed;top:0;width:100%;z-index:50;background:rgba(14,20,26,.7);backdrop-filter:blur(12px);border-bottom:1px solid rgba(76,215,246,.2);}
.nav__inner{display:flex;justify-content:space-between;align-items:center;height:64px;max-width:var(--container-max);margin:0 auto;padding:0 var(--gutter);}
.nav__logo{font-size:24px;font-weight:700;color:var(--primary);letter-spacing:-.04em;}
.nav__links{display:none;gap:var(--stack-lg);align-items:center;}
.nav__link{color:var(--on-surface-variant);transition:color .2s;}
.nav__link:hover{color:var(--primary);}
.nav__link--active{color:var(--primary);font-weight:700;border-bottom:2px solid var(--primary);padding-bottom:4px;}
.nav__actions{display:flex;align-items:center;gap:var(--stack-md);}
.nav__btn{background:none;border:none;cursor:pointer;padding:8px;border-radius:9999px;color:var(--primary);display:inline-flex;transition:transform .15s;}
.nav__btn:active{transform:scale(.95);}
@media(min-width:768px){.nav__links{display:flex;}}

/* ===== Footer ===== */
.footer{width:100%;padding:var(--stack-lg) 0;border-top:1px solid rgba(61,73,76,.3);background:var(--surface-container-lowest);}
.footer__inner{display:flex;flex-direction:column;align-items:center;gap:var(--stack-md);max-width:var(--container-max);margin:0 auto;padding:0 var(--gutter);}
.footer__copy{font-size:12px;letter-spacing:.1em;color:var(--on-surface-variant);}
.footer__links{display:flex;gap:var(--stack-lg);align-items:center;}
.footer__links a{font-family:var(--font-mono);font-size:14px;color:var(--on-surface-variant);opacity:.8;transition:color .2s,opacity .2s;}
.footer__links a:hover{color:var(--secondary);opacity:1;}
@media(min-width:768px){.footer__inner{flex-direction:row;justify-content:space-between;}}

/* ===== Page ===== */
.bg-grid{
  background-size:40px 40px;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.02) 1px, transparent 1px);
}
.page{min-height:100vh;padding-top:120px;padding-bottom:var(--section-gap);}

.head{margin-bottom:var(--stack-lg);display:flex;flex-direction:column;gap:var(--stack-sm);}
.eyebrow{display:flex;align-items:center;gap:4px;}
.eyebrow__line{width:48px;height:1px;background:var(--primary);}
.eyebrow__text{font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--primary);}
.head__title{font-size:60px;line-height:1;font-weight:800;letter-spacing:-.02em;color:var(--on-surface);}
.head__desc{font-size:18px;line-height:28px;color:var(--on-surface-variant);max-width:42rem;}
@media(max-width:767px){.head__title{font-size:40px;}}

.circuit-line{height:1px;width:100%;opacity:.3;margin-bottom:var(--section-gap);background:linear-gradient(90deg,transparent,rgba(76,215,246,.2),transparent);}

/* Cards grid */
.cards{display:grid;grid-template-columns:1fr;gap:var(--gutter);}
@media(min-width:768px){.cards{grid-template-columns:repeat(3,1fr);}}

.card{
  position:relative;overflow:hidden;padding:var(--gutter);border-radius:8px;
  background:rgba(22,27,34,.8);backdrop-filter:blur(8px);
  border:1px solid rgba(134,147,151,.1);transition:border-color .5s,box-shadow .5s;
}
.card:hover{border-color:var(--primary);box-shadow:0 0 15px rgba(76,215,246,.1);}
.card__ghost{position:absolute;top:-16px;right:-16px;font-size:120px;opacity:.05;transition:opacity .3s;}
.card:hover .card__ghost{opacity:.1;}
.card__head{display:flex;align-items:center;gap:var(--stack-md);margin-bottom:var(--stack-lg);}
.card__icon{width:48px;height:48px;border-radius:4px;display:flex;align-items:center;justify-content:center;}
.card__icon--cyan{background:rgba(76,215,246,.1);color:var(--primary);border:1px solid rgba(76,215,246,.2);}
.card__icon--amber{background:rgba(255,185,95,.1);color:var(--secondary);border:1px solid rgba(255,185,95,.2);}
.card__title{font-size:24px;font-weight:600;color:var(--on-surface);}

.bars{display:flex;flex-direction:column;gap:var(--stack-md);}
.bar{display:flex;flex-direction:column;gap:4px;}
.bar__top{display:flex;justify-content:space-between;align-items:flex-end;}
.bar__name{font-size:14px;color:var(--on-surface);display:inline-flex;align-items:center;gap:4px;}
.bar__pct{font-size:14px;}
.bar__track{height:4px;background:var(--surface-container-highest);border-radius:9999px;overflow:hidden;}
.bar__fill{height:100%;width:0;transition:width 1.5s cubic-bezier(.4,0,.2,1);}

.chips{margin-top:var(--stack-lg);display:flex;flex-wrap:wrap;gap:var(--stack-sm);}
.chip{
  padding:4px 8px;border-radius:4px;font-family:var(--font-mono);font-size:14px;
  background:var(--surface-container-high);border:1px solid rgba(61,73,76,.3);
  color:var(--on-surface-variant);transition:border-color .2s;cursor:default;
}
.chip--cyan:hover{border-color:rgba(76,215,246,.5);}
.chip--amber:hover{border-color:rgba(255,185,95,.5);}

/* Philosophy */
.philosophy{margin-top:var(--section-gap);display:grid;grid-template-columns:1fr;gap:var(--gutter);align-items:center;}
@media(min-width:1024px){.philosophy{grid-template-columns:1fr 1fr;}}
.philosophy__text{display:flex;flex-direction:column;gap:var(--stack-md);}
.philosophy__title{font-size:24px;font-weight:600;color:var(--on-surface);}
.philosophy__quote{font-size:18px;line-height:28px;color:var(--on-surface-variant);}
.precision{padding:var(--gutter);border:1px solid rgba(61,73,76,.3);border-radius:12px;background:var(--surface-container-low);display:flex;align-items:center;gap:var(--gutter);}
.precision__icon{font-size:48px;color:var(--secondary);}
.precision__title{font-weight:700;color:var(--on-surface);margin-bottom:4px;}
.precision__desc{font-size:14px;color:var(--on-surface-variant);}
.philosophy__visual{position:relative;height:256px;width:100%;border-radius:12px;overflow:hidden;border:1px solid rgba(76,215,246,.2);}
@media(min-width:1024px){.philosophy__visual{height:384px;}}
.philosophy__visual img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:filter .7s;}
.philosophy__visual:hover img{filter:grayscale(0);}
.philosophy__overlay{position:absolute;inset:0;opacity:.6;background:linear-gradient(to top,var(--background),transparent);}
.philosophy__status{position:absolute;bottom:var(--gutter);left:var(--gutter);display:flex;align-items:center;gap:var(--stack-sm);}
.philosophy__status .mono{font-size:14px;color:var(--primary);}
.dot{width:12px;height:12px;border-radius:9999px;display:inline-block;}
.dot--cyan{background:var(--primary);animation:pulse 2s infinite;}

@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}