/* =========================================================
   adivaha.io — dark luxury SaaS landing
   Original styling. Palette: deep black + orange/amber glow.
   ========================================================= */

:root{
  --bg:#060606;
  --bg-2:#0a0908;
  --panel:#100d0c;
  --panel-2:#15110f;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);

  --accent:#ff6a00;
  --accent-2:#ffb13b;
  --accent-soft:#ff8a2a;

  --white:#ffffff;
  --soft:#f3eee9;
  --muted:#b8b8b8;
  --muted-2:#8b8884;

  --radius:18px;
  --radius-lg:26px;
  --radius-pill:999px;

  --container:1180px;
  --gutter:24px;

  --shadow-glow:0 18px 60px -18px rgba(255,106,0,.55);
  --shadow-card:0 24px 60px -30px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.61,.36,1);

  --font-body:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  --font-head:"Space Grotesk","Inter",system-ui,sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--soft);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-head);font-weight:700;line-height:1.05;letter-spacing:-.02em;overflow-wrap:break-word}
p{margin:0}
button{font-family:inherit}

.wrap{width:min(100% - calc(var(--gutter) * 2),var(--container));margin-inline:auto}
.muted{color:var(--muted)}
.eyebrow{
  display:inline-block;font-family:var(--font-head);font-weight:600;font-size:.78rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--accent-2);margin-bottom:14px;
}

.skip-link{
  position:absolute;left:-999px;top:0;background:var(--accent);color:#1a0a00;
  padding:10px 16px;border-radius:0 0 10px 0;z-index:200;font-weight:600;
}
.skip-link:focus{left:0}

/* offset anchor so sticky header doesn't cover targets */
.anchor-offset{position:absolute;top:-90px}

/* ---------- buttons ---------- */
.btn{
  --pad-y:14px;--pad-x:26px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-head);font-weight:600;font-size:1rem;
  padding:var(--pad-y) var(--pad-x);border-radius:var(--radius-pill);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .3s var(--ease),background .25s,color .25s,border-color .25s;
}
.btn--sm{--pad-y:9px;--pad-x:18px;font-size:.92rem}
.btn--lg{--pad-y:16px;--pad-x:32px;font-size:1.05rem}

.btn--primary{
  color:#2a0f00;
  background:linear-gradient(180deg,#ffb24d 0%,#ff7a12 45%,#ff5e00 100%);
  box-shadow:var(--shadow-glow),inset 0 1px 0 rgba(255,255,255,.45);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 24px 70px -16px rgba(255,106,0,.7),inset 0 1px 0 rgba(255,255,255,.5)}

.btn--light{
  color:#16110d;background:#fbf8f4;
  box-shadow:0 10px 30px -16px rgba(0,0,0,.8);
}
.btn--light:hover{transform:translateY(-2px);background:#fff}

.btn:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--accent-2);font-weight:600;
  font-family:var(--font-head);margin-top:8px;transition:gap .25s var(--ease)
}
.link-arrow svg{width:18px;height:18px}
.link-arrow:hover{gap:14px}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:100;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(6,6,6,.55),rgba(6,6,6,0));
  transition:background .3s,backdrop-filter .3s,border-color .3s,padding .3s;
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:rgba(8,7,6,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  padding:10px 0;
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px}

.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700}
.brand__logo{height:30px;width:auto;filter:drop-shadow(0 4px 14px rgba(255,106,0,.35))}

.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{
  color:#d6d2cd;font-size:.95rem;font-weight:500;position:relative;padding:4px 0;transition:color .2s
}
.nav__links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--accent-2),var(--accent));transition:right .3s var(--ease);border-radius:2px
}
.nav__links a:hover{color:#fff}
.nav__links a:hover::after{right:0}

.nav__cta{display:flex;align-items:center;gap:12px}

.nav__toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);border-radius:12px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px
}
.nav__toggle span{width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s}
.nav__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;isolation:isolate;overflow:hidden;
  padding:96px 0 110px;text-align:center;
  background:
    radial-gradient(120% 90% at 50% -10%, rgba(255,106,0,.18), transparent 55%),
    radial-gradient(80% 60% at 50% 120%, rgba(255,120,20,.12), transparent 60%),
    var(--bg);
}
/* top curved glow sweep */
.hero__glow--top{
  position:absolute;left:50%;top:-42%;transform:translateX(-50%);
  width:160%;height:90%;z-index:-2;
  background:
    radial-gradient(60% 55% at 50% 60%, rgba(255,150,40,.55), rgba(255,90,0,.22) 45%, transparent 70%);
  filter:blur(40px);
  border-radius:0 0 50% 50%;
  animation:floatY 12s ease-in-out infinite alternate;
}
/* fine film grain / vignette for cinematic depth */
.hero__grain{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(120% 120% at 50% 40%, transparent 55%, rgba(0,0,0,.7) 100%);
}

.hero__inner{position:relative;display:flex;flex-direction:column;align-items:center}

.pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px 7px 7px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  font-size:.86rem;color:#e7e3de;font-weight:500;margin-bottom:26px;
  backdrop-filter:blur(6px);
}
.pill__tag{
  background:linear-gradient(180deg,#ffb24d,#ff6a00);color:#2a0f00;font-weight:700;
  padding:3px 12px;border-radius:var(--radius-pill);font-size:.78rem;letter-spacing:.02em
}

.hero__title{
  font-size:clamp(2rem,7vw,5.2rem);
  color:#fdf7f0;letter-spacing:-.03em;
  text-shadow:0 2px 30px rgba(255,106,0,.18);
  margin-bottom:22px;
  overflow-wrap:break-word;
}
.hero__sub{
  max-width:600px;color:var(--muted);font-size:clamp(1rem,1.6vw,1.18rem);margin-bottom:34px;
}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:46px}

/* ---------- hero YouTube video (click opens YouTube) ---------- */
.hero__video{margin:6px auto 46px;width:min(100%,600px)}
.ytlite{
  position:relative;display:block;width:100%;padding:0;border:0;cursor:pointer;
  aspect-ratio:16/9;border-radius:var(--radius-lg);overflow:hidden;
  background:#000 50% 50% / cover no-repeat;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.ytlite__poster{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease),filter .3s;
}
.ytlite:hover .ytlite__poster{transform:scale(1.04);filter:brightness(.9)}
.ytlite::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 60% at 50% 50%,transparent,rgba(0,0,0,.32));
}
.ytlite__play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:72px;z-index:1;transition:transform .25s var(--ease);
  filter:drop-shadow(0 8px 22px rgba(0,0,0,.45));
}
.ytlite__play svg{width:100%;height:auto;display:block}
.ytlite:hover .ytlite__play{transform:translate(-50%,-50%) scale(1.1)}
.ytlite:focus-visible{outline:3px solid var(--accent-2);outline-offset:3px}
.ytlite__frame{
  display:block;width:100%;aspect-ratio:16/9;border:0;
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}

.logostrip{display:flex;flex-direction:column;align-items:center;gap:14px}
.logostrip__label{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2)}
.logostrip__items{
  display:flex;flex-wrap:wrap;justify-content:center;gap:14px 30px;
}
.logostrip__items li{
  font-family:var(--font-head);font-weight:600;font-size:.95rem;color:#6f6b66;
  opacity:.8;transition:color .25s,opacity .25s;letter-spacing:.01em
}
.logostrip__items li:hover{color:var(--accent-2);opacity:1}

/* ============================================================
   SECTIONS (generic)
   ============================================================ */
.section{position:relative;padding:96px 0}
.section__head{max-width:680px;margin:0 auto 56px;text-align:center}
.section__title{font-size:clamp(1.8rem,3.6vw,2.7rem);color:#fbf6f0}
.section__intro{margin-top:16px;font-size:1.05rem}

/* ---------- About ---------- */
.about{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.about__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.about__lead .section__title{text-align:left;margin-bottom:20px}
.about__lead .muted{margin-bottom:16px;font-size:1.05rem}
.about__highlights{display:flex;flex-direction:column;gap:18px}
.about__highlights li{
  display:flex;gap:16px;align-items:flex-start;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;
  transition:transform .3s var(--ease),border-color .3s
}
.about__highlights li:hover{transform:translateY(-3px);border-color:rgba(255,106,0,.4)}
.about__highlights b{color:#fff;display:block;margin-bottom:4px;font-family:var(--font-head)}
.about__highlights p{font-size:.95rem}
.dotmark{
  flex:0 0 auto;width:14px;height:14px;margin-top:6px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#ffd9a0,#ff6a00);
  box-shadow:0 0 0 5px rgba(255,106,0,.12),0 0 18px rgba(255,106,0,.6)
}

/* ---------- Features ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  position:relative;padding:30px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(8px);
  overflow:hidden;transition:transform .35s var(--ease),border-color .35s,box-shadow .35s
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(255,106,0,.5),transparent 40%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .35s
}
.card:hover{transform:translateY(-6px);border-color:transparent;box-shadow:0 30px 70px -28px rgba(255,106,0,.45),var(--shadow-card)}
.card:hover::before{opacity:1}
.card__icon{
  display:grid;place-items:center;width:54px;height:54px;border-radius:14px;margin-bottom:18px;
  color:var(--accent-2);
  background:radial-gradient(circle at 30% 30%,rgba(255,177,59,.22),rgba(255,106,0,.08));
  border:1px solid rgba(255,106,0,.3);
}
.card__icon svg{width:26px;height:26px}
.card h3{font-size:1.2rem;color:#fff;margin-bottom:10px}
.card p{font-size:.97rem}

/* ---------- Benefits ---------- */
.benefits{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.benefit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.benefit{
  padding:34px 32px;border-radius:var(--radius-lg);
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(255,106,0,.10), transparent 45%),
    linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);transition:transform .35s var(--ease),border-color .35s
}
.benefit--wide{grid-column:span 1}
.benefit:hover{transform:translateY(-5px);border-color:rgba(255,106,0,.4)}
.benefit h3{font-size:1.4rem;color:#fff;margin-bottom:12px}
.benefit p{font-size:1.02rem}
.benefit:nth-child(1),.benefit:nth-child(4){grid-column:span 2}

/* ---------- How it works ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.steps::before{
  content:"";position:absolute;top:34px;left:8%;right:8%;height:2px;z-index:0;
  background:linear-gradient(90deg,transparent,rgba(255,106,0,.5),rgba(255,177,59,.5),transparent)
}
.step{position:relative;z-index:1;text-align:center;padding:0 10px}
.step__num{
  display:grid;place-items:center;width:64px;height:64px;margin:0 auto 20px;
  border-radius:50%;font-family:var(--font-head);font-weight:700;font-size:1.5rem;color:#2a0f00;
  background:linear-gradient(180deg,#ffc266,#ff6a00);
  box-shadow:0 0 0 6px rgba(255,106,0,.10),0 14px 30px -10px rgba(255,106,0,.7)
}
.step h3{font-size:1.12rem;color:#fff;margin-bottom:8px}
.step p{font-size:.95rem}

/* ---------- Why choose ---------- */
.choose{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.choose-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.choose__card{
  padding:30px 28px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));
  border:1px solid var(--line);transition:transform .35s var(--ease),border-color .35s
}
.choose__card:hover{transform:translateY(-5px);border-color:rgba(255,106,0,.4)}
.choose__card h3{font-size:1.25rem;color:#fff;margin-bottom:10px}

/* ---------- FAQ ---------- */
.faqs__wrap{max-width:820px}
.accordion{display:flex;flex-direction:column;gap:14px}
.acc{
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));transition:border-color .3s
}
.acc.is-open{border-color:rgba(255,106,0,.55)}
.acc__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;color:#f2ece6;font-family:var(--font-head);font-weight:600;font-size:1.06rem;
  text-align:left;padding:22px 24px;cursor:pointer
}
.acc.is-open .acc__q{color:#fff}
.acc__icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.acc__icon::before,.acc__icon::after{
  content:"";position:absolute;inset:0;margin:auto;background:var(--accent-2);border-radius:2px;transition:transform .3s
}
.acc__icon::before{width:18px;height:2px}
.acc__icon::after{width:2px;height:18px}
.acc.is-open .acc__icon::after{transform:scaleY(0)}
.acc__a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.acc__a p{padding:0 24px 22px;font-size:.99rem}

/* ---------- CTA band ---------- */
.cta-band{position:relative;padding:0 0 96px}
.cta-band__inner{
  position:relative;overflow:hidden;text-align:center;
  padding:64px 32px;border-radius:32px;
  background:
    radial-gradient(120% 140% at 50% 0%, rgba(255,106,0,.30), transparent 55%),
    linear-gradient(180deg,#161210,#0c0a09);
  border:1px solid rgba(255,106,0,.28);
  box-shadow:0 40px 100px -40px rgba(255,106,0,.45)
}
.cta-band__glow{
  position:absolute;left:50%;top:-60%;transform:translateX(-50%);
  width:80%;height:120%;z-index:0;pointer-events:none;
  background:radial-gradient(50% 50% at 50% 50%, rgba(255,130,30,.5), transparent 70%);
  filter:blur(50px)
}
.cta-band__inner>*{position:relative;z-index:1}
.cta-band__title{font-size:clamp(2rem,4vw,3rem);color:#fff;margin-bottom:16px}
.cta-band__sub{max-width:560px;margin:0 auto 30px;font-size:1.06rem}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:64px 0 30px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer__brand .brand{margin-bottom:16px}
.footer__brand p{max-width:280px;font-size:.95rem}
.footer__col h4{font-family:var(--font-head);font-size:.95rem;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer__col a{display:block;color:var(--muted);font-size:.95rem;margin-bottom:10px;transition:color .2s}
.footer__col a:hover{color:var(--accent-2)}
.footer__social{display:flex;gap:10px;margin-top:8px}
.footer__social a{
  display:grid;place-items:center;width:40px;height:40px;border-radius:11px;margin:0;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.03);color:#cfcbc6
}
.footer__social a:hover{color:#fff;border-color:rgba(255,106,0,.5);background:rgba(255,106,0,.12)}
.footer__social svg{width:18px;height:18px}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;align-items:center;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line)
}
.footer__bottom p{font-size:.88rem}
.footer__note{color:var(--muted-2)}

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@keyframes floatY{from{transform:translateX(-50%) translateY(0)}to{transform:translateX(-50%) translateY(-22px)}}
@keyframes floatYr{from{transform:translateY(0)}to{transform:translateY(-16px)}}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .about__grid{grid-template-columns:1fr;gap:36px}
  .about__lead .section__title{text-align:left}
  .cards{grid-template-columns:repeat(2,1fr)}
  .choose-grid{grid-template-columns:1fr;max-width:520px;margin-inline:auto}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 22px}
  .steps::before{display:none}
}

@media (max-width:760px){
  .nav__links{
    position:absolute;top:calc(100% + 8px);left:var(--gutter);right:var(--gutter);
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(12,10,9,.96);backdrop-filter:blur(16px);
    border:1px solid var(--line-strong);border-radius:18px;padding:12px;
    box-shadow:var(--shadow-card);
    opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .25s,transform .25s,visibility .25s
  }
  .nav__links.is-open{opacity:1;visibility:visible;transform:none}
  .nav__links a{padding:12px 14px;border-radius:12px}
  .nav__links a::after{display:none}
  .nav__links a:hover{background:rgba(255,255,255,.05)}
  .nav__toggle{display:flex}
  .nav__cta{display:none}

  .hero{padding:72px 0 150px}
  .hero__title{font-size:2rem;letter-spacing:-.02em}
  .section{padding:72px 0}
  .section__head{margin-bottom:42px}
  .benefit:nth-child(1),.benefit:nth-child(4),.benefit--wide{grid-column:span 2}
}

@media (max-width:560px){
  :root{--gutter:18px}
  .hero__title{font-size:1.85rem}
  .hero__sub{font-size:1rem}
  .cards{grid-template-columns:1fr}
  .benefit-grid{grid-template-columns:1fr}
  .benefit:nth-child(1),.benefit:nth-child(4),.benefit--wide{grid-column:span 1}
  .steps{grid-template-columns:1fr;max-width:360px;margin-inline:auto}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .hero__cta .btn,.cta-band__actions .btn{flex:1 1 auto}
  .cta-band__inner{padding:48px 22px;border-radius:24px}
  .footer__bottom{justify-content:flex-start}
}

@media (max-width:380px){
  .hero__title{font-size:1.5rem}
  .section__title{font-size:1.5rem}
  .hero__cta,.cta-band__actions{flex-direction:column;align-self:stretch;width:100%}
  .hero__cta .btn,.cta-band__actions .btn{width:100%}
  .logostrip__items{gap:10px 18px}
  .pill{font-size:.8rem}
}

/* ---------- motion / a11y prefs ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}