/* ============ Палітра на основі логотипа (Samara Med) ============ */
:root{
  --g-950:#050f09;
  --g-900:#081b10;
  --g-800:#0c2c19;
  --g-700:#123d22;
  --emerald-500:#12b76a;
  --emerald-400:#22d68a;
  --mint-300:#7fe8b8;
  --steel-400:#b9c4c2;

  --text-1:#eef7f1;
  --text-2:#9cc0ac;
  --text-3:#6b8a78;

  --glass-bg:rgba(12,36,22,0.55);
  --glass-border:rgba(150,220,180,0.16);
  --grad-accent:linear-gradient(120deg,var(--mint-300) 0%,var(--emerald-400) 48%,var(--emerald-500) 100%);
  --grad-accent-soft:linear-gradient(120deg,rgba(127,232,184,.35) 0%,rgba(34,214,138,.35) 48%,rgba(18,183,106,.35) 100%);

  --shadow-card:0 30px 80px -20px rgba(2,14,8,.65), 0 0 0 1px rgba(255,255,255,.03) inset;
  --ease:cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  min-height:100svh;
  font-family:'Manrope',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text-1);
  background:var(--g-950);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* ============ Живий фон (зеленуватий) ============ */
.bg{
  position:fixed; inset:0; z-index:0;
  background:
    radial-gradient(120% 90% at 15% 10%, var(--g-800) 0%, var(--g-950) 55%),
    linear-gradient(160deg, var(--g-950) 0%, var(--g-900) 100%);
  overflow:hidden;
}
.bg-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(160,220,190,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(160,220,190,.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(60% 60% at 50% 40%, #000 0%, transparent 75%);
  opacity:.5;
}
.orb{
  position:absolute;
  border-radius:50%;
  filter:blur(70px);
  opacity:.55;
  will-change:transform;
}
.orb--a{
  width:46vmax; height:46vmax;
  left:-14vmax; top:-16vmax;
  background:radial-gradient(circle at 35% 35%, var(--emerald-500), transparent 70%);
  animation:float-a 22s ease-in-out infinite;
}
.orb--b{
  width:40vmax; height:40vmax;
  right:-12vmax; top:8vmax;
  background:radial-gradient(circle at 60% 40%, var(--emerald-400), transparent 70%);
  animation:float-b 26s ease-in-out infinite;
}
.orb--c{
  width:34vmax; height:34vmax;
  left:22vmax; bottom:-18vmax;
  background:radial-gradient(circle at 50% 50%, var(--mint-300), transparent 70%);
  animation:float-c 30s ease-in-out infinite;
}
@keyframes float-a{
  0%,100%{transform:translate(0,0) scale(1);}
  50%{transform:translate(6vmax,5vmax) scale(1.12);}
}
@keyframes float-b{
  0%,100%{transform:translate(0,0) scale(1);}
  50%{transform:translate(-5vmax,6vmax) scale(1.08);}
}
@keyframes float-c{
  0%,100%{transform:translate(0,0) scale(1);}
  50%{transform:translate(4vmax,-4vmax) scale(1.15);}
}
@media (prefers-reduced-motion: reduce){
  .orb{animation:none;}
}

/* ============ Компонування ============ */
.stage{
  position:relative; z-index:1;
  min-height:100svh;
  display:flex; align-items:center; justify-content:center;
  padding:32px 20px;
}

.card{
  position:relative;
  width:100%;
  max-width:440px;
  padding:48px 40px 40px;
  border-radius:28px;
  text-align:center;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(22px) saturate(140%);
  -webkit-backdrop-filter:blur(22px) saturate(140%);
  box-shadow:var(--shadow-card);
  opacity:0; transform:translateY(24px) scale(.98);
  animation:card-in .9s var(--ease) .1s forwards;
}
.card::before{
  content:"";
  position:absolute; inset:0;
  border-radius:inherit;
  padding:1px;
  background:var(--grad-accent-soft);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  opacity:.6;
  pointer-events:none;
}
@keyframes card-in{
  to{opacity:1; transform:translateY(0) scale(1);}
}

/* ============ Логотип ============ */
.logo-wrap{
  position:relative;
  width:96px; height:96px;
  margin:0 auto 26px;
  display:flex; align-items:center; justify-content:center;
}
.logo-halo{
  position:absolute; inset:-22px;
  border-radius:50%;
  background:var(--grad-accent);
  filter:blur(22px);
  opacity:.45;
  animation:halo-pulse 4.5s ease-in-out infinite;
}
.logo{
  position:relative;
  width:88px; height:88px;
  border-radius:50%;
  opacity:0; transform:scale(.7);
  animation:
    logo-in 1s var(--ease) .3s forwards,
    logo-float 6s ease-in-out 1.3s infinite;
  filter:drop-shadow(0 8px 24px rgba(18,183,106,.35));
}
@keyframes logo-in{
  to{opacity:1; transform:scale(1);}
}
@keyframes logo-float{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-6px);}
}
@keyframes halo-pulse{
  0%,100%{opacity:.35; transform:scale(1);}
  50%{opacity:.6; transform:scale(1.12);}
}

/* ============ Текст ============ */
h1{
  margin:0 0 10px;
  font-size:clamp(22px,4.4vw,27px);
  font-weight:800;
  letter-spacing:-.02em;
  background:linear-gradient(120deg,var(--text-1) 30%, var(--emerald-400) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  opacity:0; transform:translateY(10px);
  animation:fade-up .7s var(--ease) .45s forwards;
}
.subtitle{
  margin:0 0 30px;
  font-size:15px;
  line-height:1.5;
  color:var(--text-2);
  opacity:0; transform:translateY(10px);
  animation:fade-up .7s var(--ease) .55s forwards;
}
@keyframes fade-up{
  to{opacity:1; transform:translateY(0);}
}

/* ============ Чекбокс ============ */
.confirm{
  display:flex; align-items:center; gap:12px;
  justify-content:center;
  padding:14px 16px;
  margin-bottom:22px;
  border-radius:14px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.02);
  cursor:pointer;
  user-select:none;
  transition:background .25s var(--ease), border-color .25s var(--ease);
  opacity:0; transform:translateY(10px);
  animation:fade-up .7s var(--ease) .65s forwards;
}
.confirm:hover{
  background:rgba(255,255,255,.045);
  border-color:rgba(150,220,180,.3);
}
.confirm input{
  position:absolute;
  width:1px; height:1px;
  opacity:0;
}
.confirm__box{
  position:relative;
  flex:0 0 auto;
  width:22px; height:22px;
  border-radius:7px;
  border:1.5px solid var(--text-3);
  background:rgba(255,255,255,.02);
  display:flex; align-items:center; justify-content:center;
  transition:border-color .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease), transform .2s var(--ease);
}
.confirm__check{
  width:14px; height:14px;
  stroke:#04150e;
  opacity:0;
  transform:scale(.5);
  transition:opacity .2s var(--ease), transform .25s var(--ease);
}
.confirm input:checked ~ .confirm__box{
  border-color:transparent;
  background:var(--grad-accent);
  box-shadow:0 0 0 4px rgba(34,214,138,.16), 0 4px 16px rgba(34,214,138,.35);
}
.confirm input:checked ~ .confirm__box .confirm__check{
  opacity:1;
  transform:scale(1);
}
.confirm input:focus-visible ~ .confirm__box{
  box-shadow:0 0 0 3px rgba(127,232,184,.45);
}
.confirm:active .confirm__box{transform:scale(.92);}
.confirm__label{
  font-size:14.5px;
  font-weight:600;
  color:var(--text-1);
  text-align:left;
}

/* ============ Кнопка ============ */
.btn{
  position:relative;
  width:100%;
  padding:15px 20px;
  border:none;
  border-radius:14px;
  font-family:inherit;
  font-size:15.5px;
  font-weight:700;
  letter-spacing:.01em;
  color:#052018;
  cursor:pointer;
  overflow:hidden;
  background:linear-gradient(135deg,#3a4a40,#28362d);
  transition:transform .18s var(--ease), box-shadow .3s var(--ease), background .4s var(--ease), opacity .3s var(--ease);
  opacity:0; transform:translateY(10px);
  animation:fade-up .7s var(--ease) .75s forwards;
}
.btn:disabled{
  color:var(--text-3);
  cursor:not-allowed;
}
.btn:not(:disabled){
  background:var(--grad-accent);
  color:#052018;
  box-shadow:0 12px 30px -8px rgba(34,214,138,.55);
}
.btn:not(:disabled):hover{
  transform:translateY(-2px);
  box-shadow:0 18px 40px -10px rgba(34,214,138,.7);
  filter:brightness(1.06);
}
.btn:not(:disabled):active{
  transform:translateY(0) scale(.97);
  box-shadow:0 8px 20px -8px rgba(34,214,138,.5);
}
.btn::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(120deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform:translateX(-120%);
  transition:none;
}
.btn:not(:disabled):hover::after{
  animation:sheen 1.1s ease;
}
@keyframes sheen{
  to{transform:translateX(120%);}
}

.btn__spinner{
  display:none;
  width:16px; height:16px;
  margin-left:10px;
  border-radius:50%;
  border:2px solid rgba(5,32,24,.28);
  border-top-color:#052018;
  vertical-align:-3px;
  animation:spin .7s linear infinite;
}
.btn.is-loading .btn__spinner{display:inline-block;}
.btn.is-loading .btn__label{opacity:.85;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ Підвал картки ============ */
.footnote{
  display:flex; align-items:center; justify-content:center; gap:6px;
  margin:22px 0 0;
  font-size:12px;
  color:var(--text-3);
  opacity:0;
  animation:fade-up .7s var(--ease) .85s forwards;
}
.footnote__icon{
  width:13px; height:13px;
  stroke:var(--emerald-400);
  fill:none;
}

/* ============ Перехід на інший сайт ============ */
.transition-veil{
  position:fixed; inset:0; z-index:10;
  background:var(--g-950);
  opacity:0;
  pointer-events:none;
  transition:opacity .5s var(--ease);
}
.transition-veil.is-active{
  opacity:1;
  pointer-events:all;
}

/* ============ Адаптивність ============ */
@media (max-width:480px){
  .card{
    padding:40px 26px 32px;
    border-radius:22px;
  }
  .logo-wrap{width:80px; height:80px; margin-bottom:20px;}
  .logo{width:74px; height:74px;}
  h1{font-size:21px;}
  .subtitle{font-size:14px; margin-bottom:24px;}
}
@media (max-height:640px){
  .stage{padding:20px 16px;}
  .card{padding:32px 26px 26px;}
  .logo-wrap{margin-bottom:16px;}
}