@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;600;700;800;900&display=swap');

:root {
  --blue: #3ca8c0;
  --blue-dark: #238ca7;
  --cream: #ffe4b8;
  --cream-light: #fff0d3;
  --orange: #ff9b16;
  --text: #263238;
  --shadow: 0 25px 60px rgba(13, 66, 78, 0.24);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Montserrat", Arial, sans-serif;
  background: var(--blue);
  color: var(--text);
}

.page {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px 28px;
  background:
    radial-gradient(circle at 18% 25%, rgba(255,255,255,.14) 0 2px, transparent 3px),
    radial-gradient(circle at 80% 76%, rgba(255,255,255,.13) 0 3px, transparent 4px),
    linear-gradient(135deg, #43abc2 0%, #309bb5 48%, #2d95ae 100%);
}

.page::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .13;
  background-image:
    radial-gradient(circle, #fff 1.4px, transparent 1.8px);
  background-size: 95px 95px;
  pointer-events: none;
}

.background-letter {
  position: absolute;
  font-weight: 900;
  line-height: .8;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255,255,255,.24);
  user-select: none;
  pointer-events: none;
}

.letter-k {
  font-size: clamp(330px, 48vw, 700px);
  left: -90px;
  top: 7%;
  transform: rotate(-8deg);
}

.letter-g {
  font-size: clamp(330px, 48vw, 700px);
  right: -90px;
  bottom: -5%;
  transform: rotate(5deg);
}

.hero-card {
  position: relative;
  z-index: 2;
  width: min(620px, 100%);
  padding: 42px clamp(24px, 6vw, 64px) 52px;
  border-radius: 34px;
  background: rgba(255, 228, 184, .96);
  box-shadow: var(--shadow);
  text-align: center;
  backdrop-filter: blur(4px);
}

.logo {
  width: 102px;
  height: 102px;
  margin: 0 auto 26px;
  border-radius: 27px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #5db9ca, #2d9db6);
  color: #fff1d5;
  box-shadow: 0 10px 25px rgba(29, 111, 132, .18);
  transform: rotate(-1deg);
}

.logo-main {
  font-size: 38px;
  line-height: .9;
  font-weight: 900;
  letter-spacing: -3px;
}

.logo-main .amp {
  color: var(--orange);
  margin: 0 1px;
}

.logo-sub {
  margin-top: 5px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.8px;
  text-transform: uppercase;
}

h1, h2 {
  margin: 0;
  font-weight: 900;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(32px, 7vw, 56px);
  line-height: .98;
  letter-spacing: -2.5px;
  color: #fff0d1;
  text-shadow: 0 2px 0 rgba(41, 119, 137, .12);
}

h1 span {
  color: var(--orange);
}

h2 {
  margin-top: 7px;
  font-size: clamp(30px, 6.5vw, 50px);
  line-height: 1;
  color: var(--orange);
  letter-spacing: -1.5px;
}

.date {
  display: inline-block;
  margin: 28px auto 35px;
  padding: 12px 22px;
  border-radius: 16px;
  background: rgba(74, 171, 193, .35);
  color: #fff0d1;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 1.1px;
}

.actions {
  display: grid;
  gap: 15px;
}

.btn {
  width: 100%;
  min-height: 68px;
  border: 0;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 15px 24px;
  font: inherit;
  font-size: 21px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.02);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 8px 20px rgba(224, 129, 13, .25);
}

.btn-secondary {
  background: #72a8ae;
  color: #fff;
  box-shadow: 0 8px 20px rgba(54, 107, 114, .15);
}

footer {
  position: absolute;
  z-index: 3;
  bottom: 12px;
  color: rgba(255,255,255,.8);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .5px;
}

@media (max-width: 520px) {
  .page {
    padding: 25px 14px 40px;
  }

  .hero-card {
    border-radius: 26px;
    padding: 30px 20px 34px;
  }

  .logo {
    width: 84px;
    height: 84px;
    border-radius: 23px;
    margin-bottom: 20px;
  }

  .logo-main {
    font-size: 32px;
  }

  .date {
    margin: 23px auto 27px;
    font-size: 13px;
    padding: 11px 14px;
  }

  .btn {
    min-height: 60px;
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }
}