/* ============================================================
   Alyr AI — styles
   Dark, aurora-accented, memory-native.
   ============================================================ */

:root{
  --bg:#07080d;
  --bg-2:#0a0c15;
  --ink:#eaecf3;
  --muted:#969cb0;
  --faint:#5b6175;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.14);
  --panel:rgba(255,255,255,.025);
  --panel-2:rgba(255,255,255,.045);

  --teal:#34e0c0;
  --violet:#8b6cf2;
  --magenta:#e861b2;
  --aurora:linear-gradient(115deg,#34e0c0 0%,#8b6cf2 52%,#e861b2 100%);

  --maxw:1140px;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --display:"Space Grotesk","Inter",system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.62;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
svg{display:block}
em{font-style:normal;color:var(--teal)}
strong{color:var(--ink);font-weight:600}

/* film-grain overlay */
body::after{
  content:"";position:fixed;inset:0;z-index:9998;pointer-events:none;
  opacity:.04;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,44px)}
.narrow{max-width:800px}
section{padding:clamp(76px,11vw,148px) 0;position:relative}

/* ---------- type ---------- */
.eyebrow{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--teal);margin-bottom:1.4rem;
}
h1{
  font-family:var(--display);font-weight:600;
  font-size:clamp(2.6rem,6.4vw,5rem);line-height:1.03;
  letter-spacing:-.025em;
}
h2{
  font-family:var(--display);font-weight:600;
  font-size:clamp(1.85rem,4vw,3rem);line-height:1.08;
  letter-spacing:-.02em;
}
h3{
  font-family:var(--display);font-weight:600;
  font-size:1.32rem;letter-spacing:-.01em;
}
.grad{
  background:var(--aurora);-webkit-background-clip:text;background-clip:text;
  color:transparent;
}
.lead{
  font-size:clamp(1.05rem,1.7vw,1.28rem);color:var(--muted);
  max-width:620px;margin-top:1.6rem;line-height:1.6;
}
.body-lg{
  font-size:clamp(1.02rem,1.5vw,1.18rem);color:var(--muted);
  margin-top:1.4rem;
}
.sec-head{max-width:720px;margin-bottom:clamp(44px,6vw,72px)}
.sec-head h2{margin-top:.2rem}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:var(--display);font-weight:600;font-size:.98rem;
  padding:.9em 1.6em;border-radius:100px;cursor:pointer;
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,border-color .25s,background .25s;
  white-space:nowrap;
}
.btn-sm{padding:.6em 1.2em;font-size:.9rem}
.btn-primary{
  background:var(--aurora);color:#06070c;
  box-shadow:0 6px 30px -8px rgba(139,108,242,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px -8px rgba(139,108,242,.75)}
.btn-ghost{
  color:var(--ink);background:var(--panel);
  border:1px solid var(--line-2);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--teal);background:var(--panel-2)}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .35s,border-color .35s,backdrop-filter .35s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(7,8,13,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;height:70px;
  padding:0 clamp(20px,5vw,44px);
  display:flex;align-items:center;justify-content:space-between;
}
.brand{
  display:flex;align-items:center;gap:.5em;
  font-family:var(--display);font-weight:600;font-size:1.12rem;
  letter-spacing:-.01em;
}
.brand-ai{color:var(--muted);margin-left:.12em;font-weight:500}
.brand-mark{filter:drop-shadow(0 0 10px rgba(139,108,242,.4))}
.nav-links{display:flex;gap:2.2rem;font-size:.94rem;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--ink)}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding-top:70px;overflow:hidden;
}
#stars{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.aurora-wrap{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;mix-blend-mode:screen}
.blob.a{
  width:62vw;height:62vw;top:-24%;left:-12%;
  background:radial-gradient(circle,rgba(52,224,192,.55),transparent 62%);
  animation:drift1 26s ease-in-out infinite alternate;
}
.blob.b{
  width:58vw;height:58vw;top:-10%;right:-16%;
  background:radial-gradient(circle,rgba(139,108,242,.5),transparent 62%);
  animation:drift2 32s ease-in-out infinite alternate;
}
.blob.c{
  width:52vw;height:52vw;bottom:-30%;left:20%;
  background:radial-gradient(circle,rgba(232,97,178,.4),transparent 62%);
  animation:drift3 30s ease-in-out infinite alternate;
}
@keyframes drift1{to{transform:translate(8%,6%) scale(1.12)}}
@keyframes drift2{to{transform:translate(-7%,9%) scale(1.08)}}
@keyframes drift3{to{transform:translate(6%,-8%) scale(1.14)}}

.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:34%;z-index:1;
  background:linear-gradient(transparent,var(--bg));pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero h1{margin-top:.3rem}
.cta-row{display:flex;gap:1rem;margin-top:2.4rem;flex-wrap:wrap}
.cta-row.center{justify-content:center}
.trust{
  display:flex;align-items:center;gap:.9rem;flex-wrap:wrap;
  margin-top:2.6rem;font-family:var(--mono);font-size:.76rem;
  letter-spacing:.05em;color:var(--faint);text-transform:uppercase;
}
.trust i{width:4px;height:4px;border-radius:50%;background:var(--faint);display:inline-block}

/* ---------- thesis ---------- */
.thesis{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.thesis h2{margin-top:.2rem}

/* ---------- services ---------- */
.cards{
  display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:20px;overflow:hidden;
  grid-template-columns:repeat(2,1fr);
}
.card{
  background:var(--bg);padding:clamp(28px,3.4vw,44px);
  position:relative;transition:background .3s;
}
.card:hover{background:var(--panel)}
.card-no{
  font-family:var(--mono);font-size:.85rem;letter-spacing:.1em;
  background:var(--aurora);-webkit-background-clip:text;background-clip:text;
  color:transparent;font-weight:700;
}
.card h3{margin:1.1rem 0 .8rem}
.card p{color:var(--muted);font-size:1rem}

/* ---------- approach ---------- */
.approach{background:var(--bg-2)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,34px)}
.step{
  padding:34px 30px;border-radius:18px;
  background:var(--panel);border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--aurora);opacity:.9;
}
.step-no{
  font-family:var(--mono);font-size:.85rem;color:var(--faint);letter-spacing:.15em;
}
.step h3{margin:.7rem 0 .7rem}
.step p{color:var(--muted);font-size:1rem}

/* ---------- memory ---------- */
.memory{background:linear-gradient(180deg,var(--bg-2),var(--bg));text-align:center}
.memory .narrow{margin:0 auto}
.memory h2{margin-top:.2rem}
.memory .body-lg{margin-left:auto;margin-right:auto}
.link-arrow{
  display:inline-block;margin-top:2.2rem;font-family:var(--mono);
  font-size:.86rem;color:var(--teal);border-bottom:1px solid transparent;
  transition:border-color .25s;letter-spacing:.02em;
}
.link-arrow:hover{border-bottom-color:var(--teal)}

/* ---------- audience ---------- */
.aud-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(14px,2vw,22px);
}
.aud{
  padding:26px 26px;border-radius:16px;
  background:var(--panel);border:1px solid var(--line);
  transition:transform .28s,border-color .28s,background .28s;
}
.aud:hover{transform:translateY(-3px);border-color:var(--line-2);background:var(--panel-2)}
.aud h4{font-family:var(--display);font-weight:600;font-size:1.06rem;margin-bottom:.4rem}
.aud p{color:var(--muted);font-size:.96rem;line-height:1.5}

/* ---------- pricing ---------- */
.pricing{background:var(--bg-2)}
.pricing .body-lg{max-width:640px}

.sprint{
  display:flex;align-items:center;justify-content:space-between;gap:1.6rem;
  padding:clamp(24px,3vw,38px);border-radius:20px;
  margin-bottom:clamp(26px,4vw,42px);flex-wrap:wrap;
  border:1px solid transparent;
  background:
    linear-gradient(var(--bg-2),var(--bg-2)) padding-box,
    linear-gradient(115deg,rgba(52,224,192,.55),rgba(139,108,242,.45),rgba(232,97,178,.4)) border-box;
}
.sprint-l{flex:1 1 360px}
.sprint-l h3{margin:.5rem 0 .6rem}
.sprint-l p{color:var(--muted);font-size:1rem;max-width:560px}
.sprint-r{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}
.sprint .price{font-size:2rem}

.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,24px);align-items:start}
.tier{
  position:relative;background:var(--panel);
  border:1px solid var(--line);border-radius:20px;
  padding:clamp(28px,2.6vw,36px);
  display:flex;flex-direction:column;
}
.tier.featured{
  border:1.5px solid transparent;
  background:
    linear-gradient(#0d1120,#0d1120) padding-box,
    var(--aurora) border-box;
  box-shadow:0 24px 70px -26px rgba(139,108,242,.6);
  transform:translateY(-8px);
}
.badge{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--aurora);color:#06070c;
  font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;
  text-transform:uppercase;font-weight:700;white-space:nowrap;
  padding:.42em .95em;border-radius:100px;
}
.tier-tag{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--faint);
}
.tier h3{margin:.6rem 0 .8rem}
.price{
  font-family:var(--display);font-weight:600;font-size:2.5rem;
  letter-spacing:-.02em;line-height:1;
}
.price .from{
  font-family:var(--sans);font-size:.92rem;font-weight:500;
  color:var(--faint);margin-right:.4em;
}
.price .per{font-size:1.05rem;color:var(--faint);font-weight:500}
.tier-meta{font-size:.86rem;color:var(--faint);margin-top:.55rem}
.tier ul{list-style:none;margin:1.4rem 0 1.9rem;flex:1}
.tier li{
  position:relative;padding-left:1.55rem;margin:.62rem 0;
  color:var(--muted);font-size:.97rem;line-height:1.45;
}
.tier li::before{content:"\2713";position:absolute;left:0;top:0;color:var(--teal);font-weight:700}
.btn.full{width:100%;justify-content:center}

.price-foot{
  margin-top:clamp(28px,4vw,42px);color:var(--faint);
  font-size:.92rem;text-align:center;max-width:680px;
  margin-left:auto;margin-right:auto;
}

/* ---------- contact ---------- */
.contact{
  text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--bg),var(--bg-2));
}
.aurora-wrap.soft .blob{opacity:.28}
.aurora-wrap.soft .blob.b{width:70vw;height:70vw;top:auto;bottom:-40%;left:50%;transform:translateX(-50%)}
.contact .narrow{margin:0 auto;position:relative;z-index:2}
.contact h2{font-size:clamp(2rem,4.4vw,3.2rem)}
.contact .body-lg{margin-left:auto;margin-right:auto;max-width:600px}
.contact .cta-row{margin-top:2.4rem}
.contact-line{margin-top:1.6rem;color:var(--faint);font-size:.95rem}
.contact-line a{color:var(--teal);border-bottom:1px solid transparent;transition:border-color .2s}
.contact-line a:hover{border-bottom-color:var(--teal)}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:40px 0}
.footer-inner{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  flex-wrap:wrap;
}
.foot-tag{font-family:var(--mono);font-size:.82rem;color:var(--faint);letter-spacing:.03em}
.foot-copy{font-size:.88rem;color:var(--faint)}

/* ---------- reveal ---------- */
.reveal{
  opacity:0;transform:translateY(24px);
  transition:opacity .8s cubic-bezier(.16,.8,.3,1),transform .8s cubic-bezier(.16,.8,.3,1);
}
.reveal.in{opacity:1;transform:none}
.cards .card.reveal{transition-delay:calc(var(--i,0) * 80ms)}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .nav-links{display:none}
  .cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .aud-grid{grid-template-columns:repeat(2,1fr)}
  .tiers{grid-template-columns:1fr}
  .tier.featured{transform:none}
  .sprint{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  body{font-size:16px}
  .aud-grid{grid-template-columns:1fr}
  .trust{gap:.7rem}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}