body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: #0e0e11;
  color: #eaeaf0;
}
/*Стили в голове-*/
header h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 44px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: -10px;
  transform: scaleX(1.05);
  -webkit-text-stroke: .5px rgba(255,255,255,0.35);
}
header p {
  opacity: 0.9;
  font-size: 18px;
}
header {
  position: relative;
  overflow: hidden;
  padding: 340px -10px;
  text-align: center;
  background: linear-gradient(
    50deg,
    #5e1092,
    #391392,
    #8b2acc
  );
  background-size: 300% 300%;
  animation: gradientMove 10s ease infinite;
  border-radius: 0 0 20px 20px;
}
@keyframes gradientMove {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
/* Снежинки */
header .snow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}
header .snow span {
  position: absolute;
  top: -10px;
  color: white;
  font-size: 10px;
  opacity: 0.8;
  animation: snowFall linear infinite;
}
@keyframes snowFall {
  to {
    transform: translateY(960px) translateX(0px);
  }
}
section {
  padding: 60px 20px;
  max-width: 1100px;
  margin: 0 auto;
}
.features {
  max-width: 420px;
  margin: 0 auto;
  padding: 32px;

  background: linear-gradient(
    135deg,
    rgba(88, 101, 242, 0.18),
    rgba(139, 92, 246, 0.18)
  );

  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;

  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  box-shadow:
    0 20px 50px rgba(0,0,0,0.4),
    inset 0 1px 0 rgba(255,255,255,0.25);
}


.features input {
  width: 100%;
  padding: 12px 0px;
  margin-bottom: 14px;

  background: rgba(255,255,255,0.08);
  color: #fff;

  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 12px;

  font-size: 15px;
  outline: none;

  transition: all 0.25s ease;
}

.features input::placeholder {
  color: rgba(255,255,255,0.6);
}

.features input:focus {
  border-color: rgba(139,92,246,0.9);
  background: rgba(255,255,255,0.12);

  box-shadow:
    0 0 0 3px rgba(139,92,246,0.25),
    0 10px 25px rgba(139,92,246,0.35);
}

.features .btn {
  width: 100%;
  margin-top: 10px;

  background: linear-gradient(
    135deg,
    rgba(88, 101, 242, 0.45),
    rgba(139, 92, 246, 0.45)
  );

  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 14px;

  color: #fff;
  font-size: 16px;
  font-weight: 600;

  padding: 14px;
  cursor: pointer;

  backdrop-filter: blur(16px);
  transition: all 0.25s ease;
}

.features .btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(139,92,246,0.45);
}
.msg {
  padding: 12px 14px;
  border-radius: 12px;
  margin-bottom: 15px;
  font-size: 14px;
  text-align: center;
}
.msg.error {
  background: rgba(255, 80, 80, 0.18);
  border: 1px solid rgba(255, 80, 80, 0.4);
  color: #ffbaba;
}
.features p a {
  color: #b48cff;
  text-decoration: none;
  font-weight: 500;
}

.features p a:hover {
  text-decoration: underline;
}
/* Стеклянные кнопки+аним */

.button {
  position: relative;
  text-decoration: none;
  background: linear-gradient(
    135deg,
    rgba(88, 101, 242, 0.35),
    rgba(139, 92, 246, 0.35)
  );
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 14px 28px;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow:
    0 8px 30px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: all 0.25s ease;
}
.button:hover {
  transform: translateY(5px) translateX(5px);
  box-shadow: -8px 8px 20px rgba(88, 101, 242, 0.4);
}
.button:active {
  transform: translateY(0);
  box-shadow: none;
}
.back-btn {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 3;
}