/* Argus Science — shared stylesheet (redesign v5 system) */
:root{
  --bg:#EDF1F9; --panel:#FFFFFF; --line:#D8DFEE;
  --navy:#121C42; --body:#42506F; --dim:#71809F;
  --cyan:#0CA895; --blue:#3564D4; --gold:#D99A1F;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--body);line-height:1.55;overflow-x:hidden}
h1,h2,h3,h4,.brand{font-family:'Space Grotesk',sans-serif;color:var(--navy)}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* aurora */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;background:var(--bg)}
.blob{position:absolute;border-radius:50%;filter:blur(100px);opacity:.5}
.b1{width:660px;height:660px;background:#B7D3F8;top:-200px;left:-140px;animation:drift1 26s ease-in-out infinite alternate}
.b2{width:540px;height:540px;background:#AEE9E0;top:8%;right:-170px;animation:drift2 32s ease-in-out infinite alternate}
.b3{width:460px;height:460px;background:#F4E3BC;bottom:-160px;left:30%;animation:drift3 38s ease-in-out infinite alternate}
@keyframes drift1{to{transform:translate(130px,90px) scale(1.15)}}
@keyframes drift2{to{transform:translate(-150px,130px) scale(.9)}}
@keyframes drift3{to{transform:translate(100px,-120px) scale(1.2)}}

/* nav */
nav{position:sticky;top:0;z-index:50;background:rgba(237,241,249,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-weight:700;letter-spacing:.14em;font-size:1rem;display:flex;align-items:center;gap:.55rem}
.brand img{height:26px;width:auto}
.brand .wm em{font-style:normal;color:var(--cyan)}
.brand span{color:var(--cyan)}
.navlinks{display:flex;gap:1.9rem;align-items:center}
.navlinks a{color:var(--body);font-size:.88rem;font-weight:500;transition:color .2s}
.navlinks a:hover,.navlinks a.active{color:var(--navy)}
.navlinks a.cta{background:var(--navy);color:#fff;padding:.5rem 1.1rem;border-radius:99px}
.navlinks a.cta:hover{background:#1D2B60;color:#fff}

/* nav dropdown */
.dd{position:relative;display:flex;align-items:center}
.dd > a::after{content:"";display:inline-block;margin-left:.35rem;border:4px solid transparent;border-top-color:currentColor;transform:translateY(2px)}
.ddmenu{position:absolute;top:100%;left:-.8rem;margin-top:.35rem;background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 18px 40px rgba(18,28,66,.16);padding:.5rem;min-width:250px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s,transform .18s,visibility .18s}
.dd:hover .ddmenu,.dd:focus-within .ddmenu{opacity:1;visibility:visible;transform:none}
.ddmenu a{display:block;padding:.5rem .7rem;border-radius:7px;font-size:.86rem;white-space:nowrap;color:var(--body)}
.ddmenu a:hover{background:#F1F5FC;color:var(--navy)}
.ddmenu a b{display:block;font-family:'Space Grotesk';color:var(--navy);font-size:.9rem}
.ddmenu a span{font-size:.76rem;color:var(--dim)}
.ddmenu .sep{height:1px;background:var(--line);margin:.4rem .3rem}

/* buttons */
.btn{display:inline-block;padding:.7rem 1.5rem;border-radius:99px;font-weight:600;font-size:.92rem;transition:.25s;cursor:pointer}
.btn-main{background:var(--navy);color:#fff}
.btn-main:hover{background:#1D2B60;transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--line);background:var(--panel);color:var(--navy)}
.btn-ghost:hover{border-color:var(--cyan)}

/* page hero (inner pages) */
.phero{padding:3.6rem 0 2.4rem}
.phero .kick{font-family:'Space Grotesk';color:var(--cyan);font-size:.8rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;margin-bottom:.9rem}
.phero h1{font-size:2.9rem;line-height:1.08;font-weight:700;letter-spacing:-.02em}
.phero p{font-size:1.12rem;max-width:40rem;margin-top:1.1rem}

/* generic section */
section{padding:3.4rem 0}
h2{font-size:1.85rem;font-weight:700;letter-spacing:-.015em;margin-bottom:.7rem}
h3{font-size:1.12rem;margin-bottom:.4rem}
.lede{font-size:1.05rem;max-width:38rem;margin-bottom:2.2rem}
.muted{color:var(--dim)}

/* marquee */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;padding:1rem 0;background:rgba(255,255,255,.7)}
.mtrack{display:flex;gap:3.2rem;width:max-content;animation:scroll 36s linear infinite;font-family:'Space Grotesk';font-size:.92rem;letter-spacing:.14em;color:var(--dim);text-transform:uppercase;white-space:nowrap}
.mtrack span{display:flex;align-items:center;gap:3.2rem}
.mtrack i{font-style:normal;color:var(--cyan)}
@keyframes scroll{to{transform:translateX(-50%)}}

/* trust band */
.trust{background:linear-gradient(180deg,#FFFFFF,#F2F6FC);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;padding:2.1rem 24px;text-align:center}
.trust b{display:block;font-family:'Space Grotesk';font-size:1.06rem;color:var(--navy);margin-bottom:.25rem}
.trust b::before{content:"";display:block;width:26px;height:3px;background:var(--gold);border-radius:2px;margin:0 auto .55rem}
.trust span{font-size:.86rem;color:var(--dim)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.7rem;box-shadow:0 8px 24px rgba(18,28,66,.07);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(18,28,66,.12)}
.card p{font-size:.94rem}
.tag{display:inline-block;font-family:'Space Grotesk';color:var(--blue);font-size:.76rem;letter-spacing:.12em;border:1px solid rgba(53,100,212,.3);background:rgba(53,100,212,.06);border-radius:6px;padding:.2rem .6rem;margin-bottom:.9rem}

/* heritage timeline */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:2rem}
.tstop{border-top:2px solid var(--gold);padding-top:1rem}
.tstop b{display:block;font-family:'Space Grotesk';color:var(--navy);font-size:.95rem;letter-spacing:.06em;margin-bottom:.5rem}
.tstop b em{font-style:normal;color:var(--cyan)}
.tstop p{color:var(--body);font-size:.93rem}
@media(max-width:900px){.timeline{grid-template-columns:1fr;gap:1.1rem}}

/* split (image + text) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.split img{border-radius:16px;box-shadow:0 20px 44px rgba(18,28,66,.15)}
.split.rev .txt{order:2}

/* spec grid */
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:.5rem}
.spec{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:1.1rem;text-align:center}
.spec b{display:block;font-family:'Space Grotesk';color:var(--navy);font-size:1.3rem}
.spec span{font-size:.8rem;color:var(--dim)}

/* spec table */
.stable{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.stable td{padding:.75rem 1.1rem;border-bottom:1px solid var(--line);font-size:.92rem}
.stable tr:last-child td{border-bottom:none}
.stable td:first-child{color:var(--navy);font-weight:600;width:42%}
.stable tr:nth-child(even){background:#F7F9FD}

/* tiles */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.tile{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line);box-shadow:0 8px 24px rgba(18,28,66,.09)}
.tile img{width:100%;height:100%;object-fit:cover;transition:.35s}
.tile:hover img{transform:scale(1.04)}
.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(18,28,66,.82),transparent 54%)}
.tile b{position:absolute;left:1.05rem;right:1rem;bottom:.95rem;z-index:2;color:#fff;font-size:1rem;font-weight:600}
.tile small{display:block;color:#C9D6F2;font-weight:400;font-size:.78rem;margin-top:.15rem}

/* resource list */
.rlist{display:grid;gap:1rem}
.ritem{display:grid;grid-template-columns:auto 1fr auto;gap:1.2rem;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:1.2rem 1.4rem;transition:border-color .2s}
.ritem:hover{border-color:var(--cyan)}
.ritem .ic{width:44px;height:44px;border-radius:10px;background:rgba(12,168,149,.1);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk';font-weight:700}
.ritem h3{margin-bottom:.15rem;font-size:1rem}
.ritem p{font-size:.86rem;color:var(--dim)}
.ritem .arw{color:var(--blue);font-weight:600}

/* CTA band */
.band{background:linear-gradient(120deg,rgba(12,168,149,.1),rgba(53,100,212,.07));border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center}
.band h2{margin-bottom:.6rem}
.band p{max-width:34rem;margin:0 auto 1.6rem}

/* reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* lists */
.checks{list-style:none;display:grid;gap:.7rem;margin-top:.4rem}
.checks li{position:relative;padding-left:1.7rem;font-size:.96rem}
.checks li::before{content:"";position:absolute;left:0;top:.35rem;width:14px;height:14px;border-radius:4px;background:var(--cyan)}
.checks li::after{content:"";position:absolute;left:4px;top:.5rem;width:4px;height:7px;border:2px solid #fff;border-top:0;border-left:0;transform:rotate(42deg)}

/* footer */
footer{border-top:1px solid var(--line);padding:3rem 0 2rem;color:var(--dim);font-size:.88rem;background:#f0f7f4}
footer .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
footer h4{color:var(--navy);font-size:.95rem;margin-bottom:.8rem}
footer a{display:block;margin-bottom:.4rem}
footer a:hover{color:var(--blue)}
.foot-note{grid-column:1/-1;border-top:1px solid var(--line);margin-top:2rem;padding-top:1.2rem;font-size:.76rem}

@media(max-width:900px){
  .navlinks{gap:1rem}
  .navlinks a{font-size:.78rem}
  .navlinks > a:not(.cta):nth-child(n+4){display:none}
  .ddmenu{display:none}
  .dd > a::after{display:none}
  .phero h1{font-size:2.1rem}
  .phero p{font-size:1rem}
  section{padding:2.6rem 0}
  h2{font-size:1.5rem}
  .cards,.cards.two,.tiles,.specs{grid-template-columns:1fr}
  .specs{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:1.6rem}
  .split.rev .txt{order:0}
  .trust .wrap{grid-template-columns:1fr;gap:1.1rem;text-align:left}
  .ritem{grid-template-columns:auto 1fr;gap:.9rem}
  .ritem .arw{display:none}
  footer .wrap{grid-template-columns:1fr}
}