:root {
  --teal: #183d43;
  --cream: #f4efe6;
  --cream-muted: rgba(244, 239, 230, 0.76);
  --cream-faint: rgba(244, 239, 230, 0.24);
  --content-width: 90rem;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { background: var(--teal); scroll-behavior: smooth; }

body {
  min-width: 20rem;
  margin: 0;
  background: var(--teal);
  color: var(--cream);
  font-family: "IBM Plex Sans", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

button, input { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 10;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  transform: translateY(-200%);
  background: var(--cream);
  color: var(--teal);
}

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

.site-shell {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 100svh;
  grid-template-rows: auto 1fr auto;
  width: min(100%, 66rem);
  margin: 0 auto;
  padding: clamp(1.4rem, 3.5vw, 3.6rem) clamp(1.25rem, 5vw, 5.5rem) 1.5rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-links,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand-mark {
  display: block;
  width: clamp(13rem, 23vw, 19rem);
  height: auto;
}

.main-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 47rem;
  padding: clamp(4rem, 10vh, 8rem) 0;
}

h1 {
  max-width: 30ch;
  margin: 0;
  font-size: clamp(1.65rem, 3.4vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.25;
}

.signup { margin-top: clamp(3.5rem, 8vh, 6.5rem); }

.signup h2 {
  max-width: 22ch;
  margin: 0 0 1.75rem;
  color: var(--cream-muted);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 400;
  line-height: 1.45;
}

.signup-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  border-bottom: 1px solid rgba(244, 239, 230, 0.55);
}

.email-field label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--cream-muted);
  font-size: 0.82rem;
}

.email-field input {
  width: 100%;
  border: 0;
  outline: 0;
  padding: 0.75rem 0;
  background: transparent;
  color: var(--cream);
  font-size: 1.05rem;
}

.email-field input::placeholder { color: rgba(244, 239, 230, 0.55); }

.signup-form:focus-within {
  border-bottom-color: var(--cream);
  box-shadow: 0 2px 0 var(--cream);
}

.signup-form button {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.3rem;
  border: 1px solid var(--cream);
  border-bottom: 0;
  padding: 0.75rem 1rem;
  background: var(--cream);
  color: var(--teal);
  font-weight: 600;
  cursor: pointer;
}

.signup-form button:hover { background: transparent; color: var(--cream); }
.signup-form button:disabled { cursor: wait; opacity: 0.7; }

.honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.form-status {
  max-width: 35rem;
  margin: 0.8rem 0 0;
  color: var(--cream-muted);
  font-size: 0.82rem;
}

.form-status { min-height: 1.3em; color: var(--cream); }
.form-status[data-state="error"] { text-decoration: underline; text-underline-offset: 0.18em; }

.formkit-alert {
  grid-column: 1 / -1;
  margin: 0 0 0.8rem;
  padding: 0;
  color: var(--cream);
  font-size: 0.88rem;
  list-style: none;
}

.formkit-alert:empty { display: none; }
.formkit-alert-error { text-decoration: underline; text-underline-offset: 0.18em; }
.formkit-alert-success { text-decoration: none; }

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  color: var(--cream-muted);
  font-size: 0.78rem;
}

.site-footer p { margin: 0; }

.icon-link {
  display: inline-flex;
  width: 2.6rem;
  height: 2.6rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--cream-faint);
  border-radius: 50%;
  text-decoration: none;
}

.icon-link:hover { border-color: var(--cream); }

.icon-link svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
}

.icon-link .icon-fill { fill: currentColor; stroke: none; }

a { color: var(--cream); text-underline-offset: 0.22em; }
a:hover { text-decoration-thickness: 2px; }

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--cream);
  outline-offset: 4px;
}

@media (max-width: 760px) {
  .site-shell {
    padding: 1.1rem 1rem 1rem;
  }

  .brand-mark { width: clamp(10.5rem, 48vw, 13rem); }
  .header-links, .site-footer nav { gap: 0.5rem; }
  .icon-link { width: 2.4rem; height: 2.4rem; }
  .main-content { padding: clamp(3.5rem, 9vh, 5.5rem) 0; }
  h1 { font-size: clamp(1.6rem, 7vw, 2.15rem); line-height: 1.27; }
  .signup { margin-top: clamp(3rem, 8vh, 4.5rem); }
  .signup h2 { margin-bottom: 1.25rem; }
  .signup-form { grid-template-columns: 1fr; border-bottom: 0; }
  .email-field { border-bottom: 1px solid rgba(244, 239, 230, 0.55); }
  .signup-form:focus-within { box-shadow: none; }
  .email-field:focus-within { border-bottom-color: var(--cream); box-shadow: 0 2px 0 var(--cream); }
  .signup-form button { width: 100%; margin-top: 1rem; border-bottom: 1px solid var(--cream); }
  .site-footer { padding-top: 0.75rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}