/* ==============================================
   COSMIC CANVAS — Thank-You / Upsell Landing
   ============================================== */

/* ---- Reset ---- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  /* palette */
  --deep:      #080E1D;
  --gold:      #D4A84B;
  --gold-lt:   #F5A623;
  --teal:      #4ECDC4;
  --teal-pale: #E0F4F2;
  --tg:        #229ED9;
  --tg-dk:     #1A7FC1;

  /* text opacity shades */
  --w100: #fff;
  --w70:  rgba(255,255,255,.70);
  --w60:  rgba(255,255,255,.60);
  --w55:  rgba(255,255,255,.55);
  --w50:  rgba(255,255,255,.50);
  --w40:  rgba(255,255,255,.40);
  --w30:  rgba(255,255,255,.30);

  /* glass */
  --glass-bg:   rgba(255,255,255,.07);
  --glass-top:  rgba(255,255,255,.35);
  --glass-side: rgba(255,255,255,.10);
  --glass-left: rgba(255,255,255,.25);

  /* fonts */
  --heading: 'Unbounded', system-ui, sans-serif;
  --body:    'Onest', system-ui, sans-serif;
}

html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{font-family:var(--body);background:var(--deep);color:var(--w100);min-height:100vh;overflow-x:hidden}


/* ==============================================
   Background: animated cosmic canvas
   ============================================== */
.cosmos{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.cosmos__gradient{
  position:absolute;inset:0;
  background:linear-gradient(180deg,
    #0A1628  0%,
    #0E1425 25%,
    #12102A 50%,
    #15122E 75%,
    #0A1628 100%);
}
.cosmos__canvas{position:absolute;inset:0;width:100%;height:100%}
.cosmos__veil{position:absolute;inset:0;background:rgba(8,14,29,.50)}


/* ==============================================
   Page wrapper
   ============================================== */
.page{
  position:relative;z-index:10;
  max-width:768px;margin:0 auto;
  padding:72px 24px 96px;
  display:flex;flex-direction:column;gap:48px;
}


/* ==============================================
   Glass mixin-style helpers
   ============================================== */
.glass{
  background:var(--glass-bg);
  backdrop-filter:blur(40px);-webkit-backdrop-filter:blur(40px);
  border:2px solid transparent;
  border-color:var(--glass-top) var(--glass-side) var(--glass-side) var(--glass-left);
  border-radius:16px;
  box-shadow:
    0 20px 60px rgba(0,0,0,.50),
    inset 1px 1px 0 rgba(255,255,255,.20),
    inset -1px -1px 0 rgba(0,0,0,.10);
}


/* ==============================================
   Utility classes
   ============================================== */
.gold     {color:var(--gold);font-weight:600}
.gold-grad{
  background:linear-gradient(90deg,var(--gold),var(--gold-lt));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}


/* ==============================================
   Section 1 — Hero card
   ============================================== */
.card--hero{
  background:var(--glass-bg);
  backdrop-filter:blur(40px);-webkit-backdrop-filter:blur(40px);
  border:2px solid transparent;
  border-color:var(--glass-top) var(--glass-side) var(--glass-side) var(--glass-left);
  border-radius:16px;
  box-shadow:
    0 20px 60px rgba(0,0,0,.50),
    inset 1px 1px 0 rgba(255,255,255,.20),
    inset -1px -1px 0 rgba(0,0,0,.10);
  padding:48px 40px;
  text-align:center;
}

.card__heading{
  font-family:var(--heading);
  font-size:clamp(1.5rem,4vw,2.25rem);
  font-weight:700;line-height:1.25;
  margin-bottom:8px;
}

.card__sub{color:var(--w50);font-size:1rem;margin-bottom:32px}

.card__body{
  color:var(--w70);font-size:1.125rem;line-height:1.7;margin-bottom:36px;
}

/* ---- Telegram button ---- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--body);font-weight:600;font-size:1.0625rem;
  color:var(--w100);text-decoration:none;border:none;cursor:pointer;
  border-radius:12px;
  transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .3s ease;
}
.btn:hover{transform:scale(1.045)}
.btn:active{transform:scale(.97)}

.btn--tg{
  padding:16px 32px;
  background:linear-gradient(135deg,var(--tg),var(--tg-dk));
  box-shadow:0 0 28px rgba(34,158,217,.50),0 4px 16px rgba(0,0,0,.30);
}
.btn--tg:hover{
  box-shadow:0 0 40px rgba(34,158,217,.70),0 6px 24px rgba(0,0,0,.40);
}


/* ==============================================
   Section 2 — Badge
   ============================================== */
.badge-row{display:flex;justify-content:center}
.badge{
  padding:16px 40px;border-radius:16px;text-align:center;
  background:rgba(255,165,0,.06);
  border:2px solid var(--gold-lt);
  box-shadow:
    0 0 24px rgba(245,166,35,.55),
    0 0 60px rgba(245,166,35,.25),
    inset 0 0 20px rgba(245,166,35,.05);
  font-family:var(--heading);
  font-size:clamp(1rem,3vw,1.375rem);
  font-weight:700;letter-spacing:.04em;
  color:var(--gold-lt);
  text-shadow:0 0 16px rgba(245,166,35,.70);
  animation:badge-pulse 4s ease-in-out infinite;
}
@keyframes badge-pulse{
  0%,100%{box-shadow:0 0 24px rgba(245,166,35,.55),0 0 60px rgba(245,166,35,.25),inset 0 0 20px rgba(245,166,35,.05)}
  50%{box-shadow:0 0 36px rgba(245,166,35,.70),0 0 80px rgba(245,166,35,.35),inset 0 0 30px rgba(245,166,35,.08)}
}


/* ==============================================
   Section 3 — About
   ============================================== */
.about{text-align:center;display:flex;flex-direction:column;gap:16px}
.about__lead{color:var(--w55);font-size:1rem;line-height:1.7}
.about__box{
  padding:28px 32px;border-radius:16px;
  background:rgba(34,120,120,.18);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1.5px solid transparent;
  border-color:rgba(78,205,196,.35) rgba(78,205,196,.10) rgba(78,205,196,.10) rgba(78,205,196,.25);
  box-shadow:0 8px 32px rgba(0,0,0,.35),inset 1px 1px 0 rgba(78,205,196,.15);
}
.about__box p{font-size:1.0625rem;line-height:1.75;color:var(--teal-pale)}


/* ==============================================
   Section 4 — Offer heading
   ============================================== */
.offer{text-align:center}
.offer__brow{
  color:var(--w50);font-size:.8125rem;
  text-transform:uppercase;letter-spacing:.18em;margin-bottom:12px;
}
.offer__title{
  font-family:var(--heading);
  font-size:clamp(1.2rem,3.5vw,1.75rem);
  font-weight:700;line-height:1.4;margin-bottom:16px;
}
.offer__desc{color:var(--w60);font-size:1.0625rem;line-height:1.7;max-width:600px;margin:0 auto}


/* ==============================================
   Section 5 — Three feature cards
   ============================================== */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.trio__card{
  position:relative;overflow:hidden;
  padding:24px;text-align:left;
  background:var(--glass-bg);
  backdrop-filter:blur(40px);-webkit-backdrop-filter:blur(40px);
  border:2px solid transparent;
  border-color:rgba(255,255,255,.28) rgba(255,255,255,.07) rgba(255,255,255,.07) rgba(255,255,255,.18);
  border-radius:16px;
  box-shadow:
    0 12px 40px rgba(0,0,0,.45),
    inset 1px 1px 0 rgba(255,255,255,.18),
    inset -1px -1px 0 rgba(0,0,0,.08);
  transition:transform .3s ease,box-shadow .3s ease;
}
.trio__card:hover{
  transform:translateY(-6px);
  box-shadow:
    0 20px 50px rgba(0,0,0,.60),
    inset 1px 1px 0 rgba(255,255,255,.25);
}

.trio__watermark{
  position:absolute;top:8px;right:14px;
  font-family:var(--heading);font-size:4.5rem;font-weight:900;line-height:1;
  color:rgba(212,168,75,.12);pointer-events:none;user-select:none;
}

.trio__num{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--heading);font-weight:700;font-size:.85rem;
  color:#0A1628;
  background:linear-gradient(135deg,var(--gold),var(--gold-lt));
  box-shadow:0 0 14px rgba(212,168,75,.50);
  margin-bottom:20px;position:relative;z-index:1;
}

.trio__title{
  font-family:var(--heading);font-size:1rem;font-weight:700;
  color:var(--w100);line-height:1.4;margin-bottom:8px;
  position:relative;z-index:1;
}

.trio__text{
  color:var(--w55);font-size:.875rem;line-height:1.65;
  position:relative;z-index:1;
}


/* ==============================================
   Section 6 — Pricing card
   ============================================== */
.price{
  padding:44px 40px;border-radius:16px;text-align:center;
  background:rgba(15,25,45,.65);
  backdrop-filter:blur(45px);-webkit-backdrop-filter:blur(45px);
  border:2px solid transparent;
  border-color:rgba(255,255,255,.28) rgba(255,255,255,.08) rgba(255,255,255,.08) rgba(255,255,255,.18);
  box-shadow:
    0 0 60px 10px rgba(212,168,75,.18),
    0 20px 60px rgba(0,0,0,.55),
    inset 1px 1px 0 rgba(255,255,255,.18);
}

.price__brow{
  color:var(--w40);font-size:.8125rem;
  text-transform:uppercase;letter-spacing:.15em;margin-bottom:16px;
}

.price__amount{
  font-family:var(--heading);
  font-size:clamp(2.25rem,6vw,3.25rem);
  font-weight:700;color:var(--gold);margin-bottom:8px;
}
.price__per{
  font-family:var(--body);font-size:1.125rem;color:var(--w40);font-weight:400;
}

.price__label{
  color:var(--w50);font-size:.8125rem;
  text-transform:uppercase;letter-spacing:.12em;margin-bottom:32px;
}

.price__list{
  list-style:none;display:flex;flex-direction:column;gap:10px;
  max-width:260px;margin:0 auto 36px;text-align:left;
}
.price__list li{
  display:flex;align-items:center;gap:10px;
  color:var(--w60);font-size:.9375rem;
}
.price__list svg{flex-shrink:0}

/* ---- CTA button ---- */
.btn--gold{
  padding:16px 40px;
  color:#0A1628;
  background:linear-gradient(135deg,#FFD700 0%,#FFA500 50%,#FF8C00 100%);
  box-shadow:
    0 0 28px rgba(255,180,50,.60),
    0 0 50px rgba(255,150,50,.28),
    0 4px 16px rgba(0,0,0,.30);
}
.btn--gold:hover{
  box-shadow:
    0 0 40px rgba(255,180,50,.85),
    0 0 60px rgba(255,150,50,.40),
    0 6px 20px rgba(0,0,0,.40);
}

.price__fine{color:var(--w30);font-size:.75rem;margin-top:18px}


/* ==============================================
   Scroll reveal
   ============================================== */
.reveal{
  opacity:0;transform:translateY(32px);
  transition:opacity .7s cubic-bezier(.25,.46,.45,.94),
             transform .7s cubic-bezier(.25,.46,.45,.94);
}
.reveal.is-visible{opacity:1;transform:none}


/* ==============================================
   Responsive
   ============================================== */

/* Tablet */
@media(max-width:1024px){
  .page{max-width:640px;padding:56px 20px 72px;gap:40px}
}

/* Mobile */
@media(max-width:768px){
  .page{padding:36px 16px 64px;gap:32px}

  .card--hero{padding:32px 20px}
  .card__body{font-size:1rem;margin-bottom:28px}

  .btn--tg{padding:14px 24px;font-size:1rem}

  .badge{padding:12px 24px}

  .about__box{padding:20px}
  .about__box p{font-size:1rem}

  .offer__desc{font-size:1rem}

  .trio{grid-template-columns:1fr;gap:16px}
  .trio__card{padding:22px 20px}

  .price{padding:32px 20px}
}

/* Small mobile */
@media(max-width:480px){
  .btn--tg, .btn--gold{width:100%;justify-content:center}
}