@font-face {
  font-family: "Manrope";
  src: url("./assets/manrope.ttf") format("truetype");
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
}

:root {
  --color-background: #f2f4ef;
  --color-ink: #192820;
  --color-secondary: #526055;
  --color-blue: #2445df;
  --color-blue-deep: #1932ab;
  --color-on-blue: #f2f4ef;
  --color-line: #cdd4c9;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --space-page: clamp(1.5rem, 4.5vw, 5rem);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-background);
  scrollbar-color: var(--color-blue) var(--color-background);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

::selection {
  color: var(--color-on-blue);
  background: var(--color-blue-deep);
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 6px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  padding: 0.75rem 1rem;
  color: var(--color-on-blue);
  background: var(--color-blue-deep);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.skip-link:hover {
  background: var(--color-ink);
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  max-width: 1800px;
  margin-inline: auto;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2.25rem var(--space-page);
}

.identity {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.identity-mark {
  color: var(--color-blue);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}

.identity-name {
  font-size: 0.95rem;
  font-weight: 650;
  line-height: 1.35;
}

.status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  font-size: 0.85rem;
  font-weight: 650;
}

.status span {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-blue);
}

.main {
  display: grid;
  flex: 1;
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 1fr);
  outline: none;
}

.intro {
  align-self: center;
  padding: clamp(2.25rem, 5vw, 5rem) 2.5rem clamp(2.5rem, 5vw, 5rem) var(--space-page);
}

h1 {
  margin: 0;
  font-size: clamp(3.25rem, 6.5vw, 6rem);
  font-weight: 650;
  line-height: 1.05;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

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

.description {
  max-width: 38ch;
  margin: 2rem 0 0;
  color: var(--color-secondary);
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  line-height: 1.75;
}

.invitation {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.65;
}

.signature {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 560px;
  padding: 3rem;
  overflow: hidden;
  color: var(--color-on-blue);
  background: var(--color-blue);
}

.signature-mark {
  font-size: clamp(10rem, 24vw, 25rem);
  font-weight: 650;
  line-height: 1;
  letter-spacing: -0.04em;
  animation: signature-arrives 1.4s var(--ease-out) both;
}

.signature-mark span {
  display: inline-block;
  margin-inline-start: 0.015em;
}

.signature-copy {
  align-self: flex-start;
  margin: 3rem 0 0;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: 500;
  line-height: 1.6;
}

.signature-symbol {
  position: absolute;
  width: 42px;
  height: 42px;
  inset-block-end: 3rem;
  inset-inline-end: 3rem;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.topics {
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  gap: 2rem;
  padding: 2.25rem var(--space-page);
  border-bottom: 1px solid var(--color-line);
}

.topics h2 {
  flex-shrink: 0;
  margin: 0;
  color: var(--color-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.6;
}

.topics ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.topics li {
  font-size: 0.95rem;
  font-weight: 650;
  line-height: 1.6;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem var(--space-page);
  color: var(--color-secondary);
  font-size: 0.75rem;
  line-height: 1.6;
}

.footer p {
  margin: 0;
  overflow-wrap: anywhere;
}

@keyframes signature-arrives {
  from {
    opacity: 0.92;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 1800px) {
  .page {
    border-inline: 1px solid var(--color-line);
  }
}

@media (max-width: 1000px) {
  .signature {
    min-height: 520px;
    padding: 2rem;
  }

  .signature-symbol {
    inset-block-end: 2rem;
    inset-inline-end: 2rem;
    width: 32px;
    height: 32px;
  }

  .signature-copy {
    margin-top: 2.5rem;
  }

  .topics {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }
}

@media (max-width: 700px) {
  .header {
    padding-block: 1.5rem;
  }

  .identity {
    gap: 0.65rem;
  }

  .identity-mark {
    font-size: 2.5rem;
  }

  .identity-name {
    font-size: 0.8rem;
  }

  .status {
    font-size: 0.75rem;
  }

  .main {
    display: block;
  }

  .intro {
    padding: 2.5rem var(--space-page) 3rem;
  }

  h1 {
    font-size: clamp(2.65rem, 9.9vw, 4.35rem);
  }

  .description {
    margin-top: 1.5rem;
  }

  .signature {
    min-height: auto;
    align-items: flex-start;
    padding: 1.5rem var(--space-page) 2rem;
  }

  .signature-mark {
    font-size: clamp(9rem, 36vw, 15rem);
  }

  .signature-copy {
    margin-top: 1.25rem;
    font-size: 0.95rem;
  }

  .signature-symbol {
    inset-block-end: 2rem;
    inset-inline-end: var(--space-page);
  }

  .topics {
    padding-block: 1.75rem;
  }

  .topics ul {
    gap: 0.35rem 1.25rem;
  }

  .topics li {
    font-size: 0.85rem;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .signature-mark {
    animation: none;
  }
}