/* Anchors & Arcs — "Signal Coast" (see README for the design notes). */

@font-face {
  font-family: "Chakra Petch";
  src: url("/fonts/chakra-petch-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Chakra Petch";
  src: url("/fonts/chakra-petch-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

:root {
  /* Brand colours, sampled from the logo files. */
  --navy: #19233e;
  --navy-raised: #222e4f;
  --coral: #f14871;
  --cyan: #5fd6e4; /* registration echo: decorative only */
  --paper: #f4f2ec;

  --ink: var(--navy);
  --ink-muted: #46506b;
  --on-dark: var(--paper);
  --on-dark-muted: #bcc3d6;
  --line: rgb(25 35 62 / 0.14);
  --line-on-dark: rgb(244 242 236 / 0.22);

  --font-display: "Chakra Petch", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --gutter: clamp(1rem, 4vw, 3rem);
  --max: 72rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

main:focus {
  outline: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

p {
  margin: 0;
  text-wrap: pretty;
}

h1,
h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 0.95;
  text-wrap: balance;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 3px;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 10;
  padding: 0.75rem 1rem;
  background: var(--navy);
  color: var(--on-dark);
  font-weight: 500;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

/* Header */

.site-header {
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 2rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.wordmark img {
  width: clamp(12rem, 40vw, 17rem);
}

.wordmark-subline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* Badges: the logo's anchor square, offset like the mark. */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge::before {
  content: "";
  flex: none;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--coral);
  box-shadow: 3px 3px 0 var(--navy);
}

.badge-on-dark::before {
  box-shadow: 3px 3px 0 var(--paper);
}

/* Hero */

.hero {
  position: relative;
  padding-block: clamp(4rem, 12vw, 9rem) clamp(4rem, 10vw, 7rem);
  overflow: hidden;
  /* Faint broadcast grid. */
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 4rem 4rem;
  background-position: center top;
}

.hero .wrap {
  position: relative;
}

.display {
  margin-top: 1.5rem;
  font-size: clamp(3rem, 12vw, 8.5rem);
  /* The cyan registration echo from the logo. */
  text-shadow: 0.02em 0 0 var(--cyan);
}

.display .amp {
  /* The logo's own ampersand, sized to the cap height. */
  display: inline-block;
  width: auto;
  height: 0.7em;
  vertical-align: baseline;
}

.coming-soon {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.cursor {
  color: var(--coral);
  animation: blink 1.1s steps(1, end) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.tagline {
  margin-top: 1rem;
  max-width: 36rem;
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--ink-muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

.status-page .actions {
  margin-top: 3rem;
}

/* Buttons: hard edges, offset shadow like the logo's square. */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--navy);
  border-radius: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.button-primary {
  background: var(--coral);
  color: var(--navy);
  box-shadow: 4px 4px 0 var(--navy);
}

.button-secondary {
  background: transparent;
  color: var(--navy);
}

.button:hover {
  transform: translate(-2px, -2px);
}

.button-primary:hover {
  box-shadow: 6px 6px 0 var(--navy);
}

.button:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--navy);
}

.button[disabled] {
  cursor: progress;
  opacity: 0.8;
  transform: none;
}

/* Say hello */

.contact {
  padding-block: clamp(4rem, 10vw, 7rem);
  background: var(--navy);
  color: var(--on-dark);
}

.section-heading {
  margin-top: 1.5rem;
  font-size: clamp(2.25rem, 7vw, 4.5rem);
  text-shadow: 0.02em 0 0 var(--cyan);
}

.section-heading:focus {
  outline: none;
}

.intro {
  margin-top: 1.25rem;
  max-width: 36rem;
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--on-dark-muted);
}

.email-block {
  margin-top: 3rem;
}

.email-link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4.5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: underline;
  text-decoration-color: var(--coral);
  text-decoration-thickness: 3px;
  text-underline-offset: 0.2em;
  overflow-wrap: anywhere;
}

.email-link:hover {
  color: var(--coral);
}

.email-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-top: 2rem;
}

.contact .button-primary {
  border-color: var(--coral);
  box-shadow: 4px 4px 0 var(--paper);
}

.contact .button-primary:hover {
  box-shadow: 6px 6px 0 var(--paper);
}

.contact .button-primary:active {
  box-shadow: 2px 2px 0 var(--paper);
}

.contact .button-secondary {
  border-color: var(--paper);
  color: var(--on-dark);
}

.contact .button-secondary:active {
  box-shadow: none;
}

.copy-status {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--on-dark-muted);
}

.copy-status:empty {
  display: none;
}

/* Footer */

.site-footer {
  padding-block: 2rem;
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
}

/* Small screens */

@media (max-width: 40rem) {
  .hero {
    background-size: 3rem 3rem;
  }

  .actions .button {
    flex: 1 1 100%;
  }
}

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

  .cursor {
    animation: none;
  }

  .button {
    transition: none;
  }
}