/* ============================================================
   cuboo — landing page
   Palette mirrors the app's locked tokens (CubooColor.swift)
   ============================================================ */
:root{
  /* light world */
  --ink:#1F1B16;
  --ink-soft:#6B6760;
  --ink-faint:#A6A199;
  --base:#FAFAFA;
  --surface:#FFFFFF;
  --hairline:rgba(31,27,22,.10);
  /* spatial blue */
  --accent:#3B5BDB;
  --accent-bright:#718EF3;
  --periwinkle:#BDC9F3;
  --accent-glow:#ECF1FF;
  /* night ramp */
  --night-abyss:#05071C;
  --night:#0E133C;
  --deep-blue:#1E2670;
  --indigo:#2A328F;
  --night-horizon:#2E3C94;
  /* warm/signage */
  --sun:#F4D67A;
  --cream:#F4E8D9;
  --sage:#9AB89A;

  --maxw:1200px;
  --radius:24px;
  --radius-lg:32px;
  --shadow:0 24px 60px -24px rgba(31,27,22,.28);
  --shadow-soft:0 12px 32px -16px rgba(31,27,22,.22);

  --font:'Inter',-apple-system,BlinkMacSystemFont,'SF Pro Text',system-ui,sans-serif;
  --display:'Space Grotesk',var(--font);
  --mono:'Space Mono','SF Mono',ui-monospace,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--base);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

h1,h2,h3,h4{font-family:var(--display);font-weight:700;line-height:1.08;letter-spacing:-.02em}
.grad{background:linear-gradient(105deg,var(--accent),var(--accent-bright));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -10px rgba(59,91,219,.7)}
.btn--accent:hover{transform:translateY(-2px);box-shadow:0 16px 30px -10px rgba(59,91,219,.8)}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--hairline)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- store badges ---------- */
.badges{display:flex;gap:14px;flex-wrap:wrap}
.badges--center{justify-content:center}
.store-badge{display:inline-flex;align-items:center;gap:10px;background:#000;color:#fff;
  padding:9px 16px 9px 14px;border-radius:13px;border:1px solid rgba(255,255,255,.14);
  transition:transform .18s ease,box-shadow .18s ease}
.store-badge:hover{transform:translateY(-2px);box-shadow:0 14px 26px -14px rgba(0,0,0,.6)}
.store-badge__logo{width:26px;height:26px;fill:#fff;flex:none}
.store-badge__txt{display:flex;flex-direction:column;line-height:1.1;text-align:left}
.store-badge__txt small{font-size:10px;opacity:.85;letter-spacing:.02em}
.store-badge__txt strong{font-size:17px;font-weight:600;font-family:var(--display)}
.store-badge--sm{padding:7px 14px 7px 12px}
.store-badge--sm .store-badge__logo{width:20px;height:20px}
.store-badge--sm .store-badge__txt small{font-size:8px}
.store-badge--sm .store-badge__txt strong{font-size:14px}

/* ---------- pill / eyebrow ---------- */
.pill{display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(189,201,243,.25);
  color:var(--periwinkle);font-size:13.5px;font-weight:500;backdrop-filter:blur(8px)}
.pill__dot{width:8px;height:8px;border-radius:50%;background:var(--sun);box-shadow:0 0 10px var(--sun)}
.eyebrow{display:inline-block;font-family:var(--mono);font-size:12px;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
.eyebrow--light{color:var(--sun)}

/* ============================================================
   NAV
   ============================================================ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px}
.brand__mark{width:34px;height:34px;border-radius:9px;box-shadow:0 4px 12px -4px rgba(0,0,0,.5)}
.brand__name{font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:-.01em;color:#fff}
.nav__links{display:flex;gap:30px}
.nav__links a{font-size:15px;font-weight:500;color:rgba(255,255,255,.82);transition:color .2s}
.nav__links a:hover{color:#fff}
.nav__cta{display:flex;align-items:center;gap:14px}
.nav__burger{display:none;flex-direction:column;gap:5px;padding:8px}
.nav__burger span{width:22px;height:2px;background:#fff;border-radius:2px;transition:.25s}

/* scrolled state -> light bar */
.nav.scrolled{background:rgba(250,250,250,.82);backdrop-filter:blur(16px);box-shadow:0 1px 0 var(--hairline)}
.nav.scrolled .brand__name{color:var(--ink)}
.nav.scrolled .nav__links a{color:var(--ink-soft)}
.nav.scrolled .nav__links a:hover{color:var(--ink)}
.nav.scrolled .nav__burger span{background:var(--ink)}

.nav__drawer{display:none;flex-direction:column;gap:4px;padding:12px 24px 22px;
  background:rgba(8,10,28,.96);backdrop-filter:blur(16px);border-top:1px solid rgba(255,255,255,.08)}
.nav__drawer a{padding:12px 6px;color:rgba(255,255,255,.85);font-weight:500;border-bottom:1px solid rgba(255,255,255,.06)}
.nav__drawer a:last-child{border:none;margin-top:10px;color:#fff;justify-content:center}
.nav.open .nav__drawer{display:flex}
.nav.open .nav__burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav.open .nav__burger span:nth-child(2){opacity:0}
.nav.open .nav__burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(120% 100% at 70% -10%,var(--indigo) 0%,var(--night) 38%,var(--night-abyss) 100%);
  color:#fff;padding:150px 0 90px}
.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero__stars{position:absolute;inset:0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 20%,rgba(255,255,255,.9),transparent),
    radial-gradient(1.2px 1.2px at 28% 64%,rgba(255,255,255,.7),transparent),
    radial-gradient(1.6px 1.6px at 47% 32%,rgba(255,255,255,.85),transparent),
    radial-gradient(1.2px 1.2px at 62% 12%,rgba(255,255,255,.65),transparent),
    radial-gradient(1.5px 1.5px at 78% 50%,rgba(255,255,255,.8),transparent),
    radial-gradient(1.2px 1.2px at 88% 26%,rgba(255,255,255,.6),transparent),
    radial-gradient(1.3px 1.3px at 8% 78%,rgba(255,255,255,.7),transparent),
    radial-gradient(1.4px 1.4px at 70% 82%,rgba(255,255,255,.65),transparent);
  opacity:.7}
.hero__glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55}
.hero__glow--1{width:520px;height:520px;background:radial-gradient(circle,var(--accent),transparent 70%);top:-140px;right:-80px}
.hero__glow--2{width:420px;height:420px;background:radial-gradient(circle,#5a3bdb,transparent 70%);bottom:-180px;left:-100px;opacity:.4}
.hero__route{position:absolute;inset:0;width:100%;height:100%;opacity:.8}

.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1.08fr;gap:40px;align-items:center}
.hero__copy{max-width:560px}
.hero__title{font-size:clamp(38px,5.2vw,62px);margin:22px 0 18px}
.hero__sub{font-size:clamp(16px,1.4vw,18.5px);color:rgba(236,241,255,.78);max-width:500px;margin-bottom:30px}
.hero__stats{display:flex;gap:34px;margin-top:34px}
.hero__stat{display:flex;flex-direction:column}
.hero__stat strong{font-family:var(--display);font-size:26px;color:#fff}
.hero__stat span{font-size:13px;color:rgba(189,201,243,.7)}

/* hero device : two phones + arrow (Cal-AI style) */
.hero__device{position:relative;display:flex;justify-content:center;align-items:center;min-height:560px}
.hero__phones{position:relative;width:100%;max-width:540px;height:560px;margin:0 auto}
.hero__phone{position:absolute;width:auto;height:90%;
  filter:drop-shadow(0 40px 55px rgba(0,0,0,.55)) drop-shadow(0 8px 16px rgba(0,0,0,.4));
  animation:floaty 7s ease-in-out infinite}
.hero__phone--left{left:0;bottom:0;height:97%;z-index:3}
.hero__phone--right{right:0;top:0;height:90%;z-index:2;animation-delay:1.1s}
.hero__arrow{position:absolute;left:50%;top:34%;transform:translate(-50%,-50%);
  width:96px;height:auto;z-index:4;opacity:.92;filter:drop-shadow(0 4px 8px rgba(0,0,0,.4))}

.float-chip{position:absolute;z-index:5;background:rgba(255,255,255,.1);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.18);color:#fff;font-size:13.5px;font-weight:600;
  padding:10px 16px;border-radius:14px;box-shadow:0 16px 30px -16px rgba(0,0,0,.6);white-space:nowrap;
  animation:floaty 6s ease-in-out infinite}
.float-chip--a{top:2%;left:-7%;animation-delay:.3s}
.float-chip--d{bottom:6%;right:-6%;animation-delay:1.8s;color:var(--sun)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ============================================================
   SECTION basics
   ============================================================ */
.section{padding:96px 0}
.section__head{margin-bottom:48px;max-width:640px}
.section__head--center{margin:0 auto 56px;text-align:center}
.section__title{font-size:clamp(30px,4vw,46px);margin-top:14px}
.section__lead{font-size:17px;color:var(--ink-soft);margin-top:16px}

/* ============================================================
   FEATURES
   ============================================================ */
.features{background:var(--base)}
.features__grid{display:grid;grid-template-columns:380px 1fr;gap:64px;align-items:center}
.features__phone{display:flex;flex-direction:column;align-items:center;gap:26px;position:sticky;top:100px}
.feat-stack{position:relative;width:100%;max-width:300px;aspect-ratio:507/1100;margin:0 auto}
.feat-shot{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;
  filter:drop-shadow(0 34px 50px rgba(31,27,22,.24));
  opacity:0;visibility:hidden;transform:scale(.96) translateY(10px);
  transition:opacity .55s ease,transform .55s ease,visibility .55s}
.feat-shot.is-active{opacity:1;visibility:visible;transform:none}
.dots{display:flex;gap:9px}
.dots button{width:8px;height:8px;border-radius:50%;background:var(--hairline);transition:.25s}
.dots button.is-active{background:var(--accent);width:26px;border-radius:999px}
.features__list{display:flex;flex-direction:column;gap:14px}
.fcard{text-align:left;padding:24px 26px;border-radius:var(--radius);background:var(--surface);
  border:1px solid var(--hairline);transition:.3s;position:relative;overflow:hidden}
.fcard::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .35s ease}
.fcard h3{font-size:20px;transition:color .25s}
.fcard p{font-size:15px;color:var(--ink-soft);margin-top:8px;max-width:54ch}
.fcard.is-active{box-shadow:var(--shadow-soft);border-color:rgba(59,91,219,.25);transform:translateX(4px)}
.fcard.is-active::before{transform:scaleY(1)}
.fcard.is-active h3{color:var(--accent)}
.fcard:not(.is-active){opacity:.7}
.fcard:hover{opacity:1}

/* ============================================================
   JOURNEY / STEPS
   ============================================================ */
.journey{background:linear-gradient(180deg,#fff,var(--base))}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);padding:34px 30px;position:relative;
  transition:transform .25s ease,box-shadow .25s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft)}
.step__num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.1em}
.step__ico{font-size:34px;margin:16px 0 14px}
.step h3{font-size:21px}
.step p{font-size:15px;color:var(--ink-soft);margin-top:10px}
.step::after{content:'';position:absolute;top:46px;right:-16px;width:24px;height:2px;background:repeating-linear-gradient(90deg,var(--accent) 0 4px,transparent 4px 8px);opacity:.5}
.step:last-child::after{display:none}

/* ============================================================
   CINEMATIC WINDOW
   ============================================================ */
.cine{position:relative;color:#fff;overflow:hidden;padding:120px 0}
.cine__bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05);animation:cinePan 30s ease-in-out infinite alternate}
@keyframes cinePan{from{transform:scale(1.05) translateX(-2%)}to{transform:scale(1.12) translateX(2%)}}
.cine__veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,7,28,.92) 0%,rgba(5,7,28,.7) 45%,rgba(5,7,28,.25) 100%)}
.cine__inner{position:relative;z-index:2;max-width:620px}
.cine__title{font-size:clamp(32px,4.4vw,52px);margin:16px 0 18px}
.cine__sub{font-size:18px;color:rgba(236,241,255,.85);max-width:520px}
.cine__sounds{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.cine__sounds span{padding:10px 18px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(8px);font-weight:600;font-size:14px}

/* ============================================================
   STAMPS
   ============================================================ */
.stamps{background:var(--base)}
.stamps__grid{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:center}
.stamps__facts{list-style:none;display:flex;gap:28px;margin:26px 0 30px}
.stamps__facts li{font-size:14px;color:var(--ink-soft)}
.stamps__facts b{display:block;font-family:var(--display);font-size:30px;color:var(--ink)}
.stamps__art{position:relative;border-radius:var(--radius-lg);overflow:hidden;padding:30px;
  background:
    radial-gradient(120% 120% at 50% 0%,#fff,#f3efe7);
  border:1px solid var(--hairline);box-shadow:var(--shadow);transform:rotate(-1.2deg)}
.stamps__art::before{content:'';position:absolute;inset:0;background:
  repeating-linear-gradient(0deg,transparent 0 26px,rgba(31,27,22,.025) 26px 27px);pointer-events:none}
.stamps__art img{border-radius:12px;mix-blend-mode:multiply}

/* ============================================================
   PRICING
   ============================================================ */
.pricing{background:linear-gradient(180deg,var(--base),#fff)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-lg);padding:34px 30px;
  display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft)}
.plan--best{background:linear-gradient(180deg,#0b0f2b,#070a1f);color:#fff;border:none;
  box-shadow:0 36px 70px -30px rgba(11,15,43,.7);transform:scale(1.04)}
.plan--best:hover{transform:scale(1.04) translateY(-4px)}
.plan__badge{display:inline-block;align-self:flex-start;font-size:11px;font-weight:700;letter-spacing:.04em;
  background:var(--sun);color:#3a2e08;padding:6px 12px;border-radius:999px;margin-bottom:16px}
.plan__name{font-size:18px;font-family:var(--display)}
.plan--best .plan__name{color:var(--periwinkle)}
.plan__price{font-family:var(--display);font-weight:700;font-size:46px;line-height:1;margin:14px 0 6px;letter-spacing:-.02em}
.plan__cur{font-size:24px;vertical-align:super;margin-right:2px}
.plan__per{font-size:15px;font-weight:500;color:var(--ink-faint);margin-left:4px}
.plan--best .plan__per{color:var(--periwinkle)}
.plan__note{font-size:13.5px;color:var(--ink-soft);margin-bottom:20px}
.plan--best .plan__note{color:var(--periwinkle)}
.plan__feat{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:26px;flex:1}
.plan__feat li{font-size:14.5px;padding-left:26px;position:relative;color:var(--ink-soft)}
.plan--best .plan__feat li{color:rgba(236,241,255,.85)}
.plan__feat li::before{content:'';position:absolute;left:0;top:7px;width:15px;height:9px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.plan--best .plan__feat li::before{border-color:var(--sun)}
.plan .btn{width:100%}

/* ============================================================
   FAQ
   ============================================================ */
.faq{background:#fff}
.faq__grid{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start}
.faq__list{display:flex;flex-direction:column;gap:12px}
.qa{border:1px solid var(--hairline);border-radius:18px;padding:6px 22px;background:var(--surface);transition:border-color .25s}
.qa[open]{border-color:rgba(59,91,219,.3);box-shadow:var(--shadow-soft)}
.qa summary{list-style:none;cursor:pointer;font-family:var(--display);font-weight:600;font-size:17px;
  padding:16px 0;display:flex;justify-content:space-between;align-items:center;gap:16px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:'+';font-size:24px;font-weight:400;color:var(--accent);transition:transform .25s;line-height:1}
.qa[open] summary::after{transform:rotate(45deg)}
.qa p{font-size:15px;color:var(--ink-soft);padding:0 0 18px}

/* ============================================================
   CTA + FOOTER
   ============================================================ */
.cta{position:relative;overflow:hidden;text-align:center;color:#fff;padding:110px 0;
  background:radial-gradient(120% 120% at 50% 0%,var(--indigo),var(--night) 45%,var(--night-abyss))}
.cta__bg{position:absolute;inset:0}
.cta__inner{position:relative;z-index:2}
.cta__title{font-size:clamp(32px,4.6vw,54px)}
.cta__sub{font-size:18px;color:rgba(236,241,255,.8);max-width:520px;margin:16px auto 32px}

.footer{background:var(--night-abyss);color:rgba(255,255,255,.7);padding:64px 0 30px}
.footer__inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer__brand .brand{margin-bottom:14px}
.footer__brand p{font-size:14px;max-width:300px}
.footer__col h4{font-family:var(--display);font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer__col a{display:block;font-size:14px;padding:5px 0;color:rgba(255,255,255,.6);transition:color .2s}
.footer__col a:hover{color:#fff}
.footer__bar{display:flex;justify-content:space-between;padding-top:24px;font-size:13px;color:rgba(255,255,255,.45);flex-wrap:wrap;gap:8px}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .nav__links{display:none}
  .nav__burger{display:flex}
  .store-badge--sm{display:none}
  .hero{padding:120px 0 70px}
  .hero__inner{grid-template-columns:1fr;gap:30px;text-align:center}
  .hero__copy{max-width:640px;margin:0 auto}
  .hero__sub{margin-left:auto;margin-right:auto}
  .badges,.hero__stats{justify-content:center}
  .hero__device{min-height:500px}
  .hero__phones{height:500px;max-width:520px}
  .features__grid{grid-template-columns:1fr;gap:40px}
  .features__phone{position:static;order:-1}
  .stamps__grid{grid-template-columns:1fr;gap:40px}
  .faq__grid{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr;gap:18px}
  .step::after{display:none}
  .plans{grid-template-columns:1fr;max-width:440px;margin:0 auto}
  .plan--best{transform:none;order:-1}
  .plan--best:hover{transform:translateY(-4px)}
  .footer__inner{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .section{padding:70px 0}
  .hero__stats{gap:22px}
  .hero__stat strong{font-size:22px}
  .strip__row{font-size:14px;gap:10px}
  .hero__device{min-height:400px}
  .hero__phones{height:400px;max-width:380px}
  .hero__arrow{width:70px}
  .float-chip{font-size:11.5px;padding:7px 11px}
  .float-chip--a{top:-1%;left:-3%}
  .float-chip--d{bottom:2%;right:-3%}
  .footer__inner{grid-template-columns:1fr}
  .footer__bar{justify-content:center;text-align:center}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}