:root {
  color-scheme: light dark;
  --body: linear-gradient(134.79deg, #E6E7F1 20.75%, #F2E5E5 91.87%);
  --content: #FFF;
  --text: #111;
  --text-light: #414141;
  --note: #AAA;
  --shadow: 0px 2px 6px rgba(0, 0, 0, 0.14), 0px 22px 44px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --body: linear-gradient(133.24deg, #4F4E54 21.63%, #282A30 87.44%);
    --content: #202020;
    --text: #FAFAFA;
    --text-light: #D1D1D1;
    --note: #000;
  }
}

html {
  font-size: 22px;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
  text-size-adjust: 100%;
}

body {
  background: var(--body);
  color: var(--text);
  font-family: system-ui, sans-serif;
  font-size: 1em;
  text-align: center;
}

html,
body,
div {
  display: block;
  box-sizing: border-box;
  border: none;
  margin: 0;
  padding: 0;
}

a, a:visited, a:focus {
  color: var(--text);
  box-sizing: border-box;
  text-decoration: underline;
}

a:hover {
  text-decoration: none;
}

.page {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 64px 64px 32px 64px;
  min-height: 100dvh;
}

.content {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  width: 100%;
  height: 100%;
}

.box {
  display: flex;
  flex: 1 1 auto;
  width: 80%;
  max-width: 1860px;
  height: 100%;
  background: var(--content);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 60px 48px;
  border-radius: 48px;
  box-shadow: var(--shadow);
  gap: 28px;
}

.btn {
  display: inline-block;
  background: var(--content);
  color: var(var(--text));
  border: 3px solid #EF3939;
  padding: 10px 34px;
  font-weight: 500;
  border-radius: 32px;
  text-decoration: none !important;
}

.btn:hover,
.btn:focus {
  animation: pulse 1s ease-out infinite;
  outline: none;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 #EF3939;
  }
  100% {
    box-shadow: 0 0 0 14px transparent;
  }
}

img {
  display: block;
  border: none;
}

svg {
  display: block;
  vertical-align: middle;
}

svg:not(:root) {
  overflow: hidden;
}

h1 {
  margin: 0;
  line-height: 1;
  font-size: 2.4rem;
}

p {
  margin: 0;
  color: var(--text-light);
}

p + p {
  margin-top: .6rem;
}

p a {
  white-space: nowrap;
  color: var(--text-light);
}

.space-adjust {
  padding: 3px 0;
}

.note {
  display: inline-block;
  background: var(--content);
  color: var(--text-light);
  font-size: 18px;
  border-radius: 30px;
  text-decoration: none !important;
  box-shadow: var(--shadow);
}

.note div {
  padding: 7px 24px;
  border-radius: 30px;
}

.note b {
  color: var(--text);
  display: inline-block;
  padding-right: 2px;
}

.note:hover div,
.note:focus div {
  animation: note 1s ease-out;
}

@keyframes note {
  0% {
    box-shadow: 0 0 0 0 var(--note);
  }

  100% {
    box-shadow: 0 0 0 14px transparent;
  }
}

@media (max-width: 1920px) {
  html {
    font-size: 20px;
  }
  .note {
    font-size: 16px;
  }
  .vivaldi-icon {
    width: 64px;
    height: 64px;
  }
  .space-adjust {
    padding: 2px 0;
  }
  .btn {
    padding: 10px 28px;
  }
}

@media (max-width: 1600px) {
  html {
    font-size: 19px;
  }
  .page {
    padding: 48px 48px 24px 48px;
  }
  .box {
    width: 86%;
    gap: 24px;
  }
  .space-adjust {
    padding: 0;
  }
  .content {
    gap: 24px;
  }
}

@media (max-width: 1280px) {
  .box {
    width: 92%;
  }
}

@media (max-width: 1024px) {
  html {
    font-size: 18px;
  }
  .page {
    padding: 32px 32px 24px 32px;
  }
  .box {
    width: 100%;
    padding: 48px;
    border-radius: 32px;
  }
  .vivaldi-icon {
    width: 56px;
    height: 56px;
  }
}

@media (max-width: 960px) {
  p + p {
    margin-top: .5rem;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  .vivaldi-icon {
    width: 48px;
    height: 48px;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 16px;
  }
  body {
    background: var(--body);
  }
  .page {
    padding: 16px;
  }
  .content {
    gap: 16px;
  }
  .box {
    padding: 48px 24px;
    border-radius: 12px;
  }
  .box br {
    display: none;
  }
  .vivaldi-icon {
    width: 48px;
    height: 48px;
  }
  .note {
    width: 100%;
    border-radius: 12px;
  }
  .note div {
    border-radius: 12px;
    padding: 16px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 16px;
  }
  .page {
    padding: 10px;
  }
  .content {
    gap: 10px;
  }
  .box {
    padding: 40px 20px;
  }
}

@media (max-width: 320px) {
  .page {
    padding: 6px;
  }
  .content {
    gap: 6px;
  }
}