:root {
  --navy: #071e2d;
  --cyan: #05c9df;
  --ivory: #f5f1e8;
  --slate: #435c65;
  --rule: #788b90;
  --gutter: clamp(24px, 4vw, 64px);
  --gap: 32px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--ivory); color: var(--navy); font-family: Arial, Helvetica, sans-serif; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
a { color: inherit; text-underline-offset: 4px; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--navy); outline-offset: 5px; }
.shell { width: 100%; max-width: 1440px; margin-inline: auto; padding-inline: var(--gutter); }
.micro { font: 12px/1.5 'Courier New', monospace; letter-spacing: .08em; text-transform: uppercase; }
.header { min-height: 104px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: center; gap: var(--gap); border-bottom: 1px solid var(--rule); }
.brand { display: inline-flex; align-items: center; gap: 16px; width: fit-content; font-size: 24px; line-height: 1; letter-spacing: .14em; font-weight: 700; text-decoration: none; }
.brand span { flex: 0 0 14px; height: 14px; border: 2px solid currentColor; border-radius: 50%; margin: 4px; box-shadow: 0 0 0 3px var(--ivory), 0 0 0 4px currentColor; }
.header-note { display: flex; justify-content: space-between; align-items: center; gap: 16px; color: var(--slate); font-size: 11px; letter-spacing: .06em; }
.intro { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap); padding-block: 24px 40px; color: var(--slate); }
.intro > span:last-child { text-align: right; }
.hero { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap); align-items: start; padding-block: 0 48px; }
.copy { min-width: 0; }
h1 { margin: 0; font-weight: 700; text-transform: uppercase; }
.hero h1 { font-size: clamp(48px, 5.5vw, 78px); line-height: .96; letter-spacing: -.055em; margin-left: 0; }
.headline-line { display: block; }
h1 .outline { color: var(--ivory); -webkit-text-stroke: 1.8px var(--navy); paint-order: normal; }
.description { max-width: 365px; font-size: 18px; line-height: 1.55; color: var(--slate); margin: 24px 0 0; }
.signup { margin-top: 24px; display: flex; flex-direction: column; align-items: flex-start; }
.tagline { font-size: 17px; line-height: 1.55; margin: 0 0 24px; color: var(--slate); }
.tagline strong { font-weight: 700; color: var(--navy); }
.cta { appearance: none; margin: 0; display: inline-flex; justify-content: center; align-items: center; gap: 16px; min-height: 56px; min-width: 176px; padding: 16px 24px; border: 0; border-radius: 0; background: var(--cyan); color: var(--navy); font-size: 14px; line-height: 24px; font-weight: 700; letter-spacing: .015em; cursor: pointer; transition: background-color 180ms ease, color 180ms ease; }
.cta .arrow { display: block; flex: 0 0 16px; width: 16px; height: 16px; transition: transform 180ms ease; }
@media (hover: hover) { .cta:hover { background: var(--navy); color: var(--ivory); } .cta:hover .arrow { transform: translateX(2px); } }
.cta:active { background: #09b8cd; color: var(--navy); }
.art { min-width: 0; aspect-ratio: 1.16; display: grid; place-items: center; overflow: hidden; margin-top: -24px; }
.art img { display: block; width: 116%; max-width: none; height: auto; transform: translateY(-2%); }
.details { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap); padding-block: 32px; border-block: 1px solid var(--rule); }
.detail { min-width: 0; }
.detail h2 { font-size: 16px; line-height: 1.4; font-weight: 700; letter-spacing: -.015em; margin: 0 0 8px; }
.detail p { font-size: 14px; line-height: 1.6; color: var(--slate); max-width: 33ch; margin: 0; }
.footer { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-block: 32px 40px; color: var(--slate); }
.footer a { text-decoration-thickness: 1px; text-underline-offset: 4px; }
.footer a:hover { color: var(--navy); }
dialog { width: min(450px, calc(100% - 48px)); max-height: calc(100dvh - 48px); padding: 32px; color: var(--navy); background: var(--ivory); border: 1px solid var(--rule); }
dialog::backdrop { background: #071e2d99; }
dialog h2 { margin: 0 0 16px; font-size: 28px; letter-spacing: -.03em; }
dialog p { font-size: 15px; line-height: 1.6; margin: 0 0 24px; color: var(--slate); }
dialog button { padding: 12px 24px; min-height: 48px; border: 0; background: var(--cyan); color: var(--navy); font-weight: 700; cursor: pointer; }
dialog button:hover { background: var(--navy); color: var(--ivory); }
.skip { position: absolute; left: var(--gutter); top: -100px; padding: 12px; background: var(--cyan); z-index: 10; }
.skip:focus { top: 12px; }
.back-link { justify-self: end; font-size: 12px; line-height: 1.5; }
.privacy-content { max-width: 740px; padding-block: 48px 64px; }
.privacy-content > .micro { color: var(--slate); margin: 0 0 24px; }
.privacy-content h1 { font-size: clamp(38px, 5vw, 64px); line-height: 1; letter-spacing: -.045em; margin: 0 0 32px; }
.privacy-content h2 { font-size: 22px; line-height: 1.3; margin: 32px 0 16px; }
.privacy-content p, .privacy-content li { font-size: 16px; line-height: 1.7; color: var(--slate); }
.privacy-content strong { color: var(--navy); }
.privacy-content ul { padding-left: 24px; }
@media (max-width: 1100px) {
  :root { --gap: 24px; }
  .header-note > span:first-child { max-width: 25ch; }
  .header-note { line-height: 1.6; }
  .intro { font-size: 11px; }
  .hero h1 { font-size: clamp(46px, 5.6vw, 62px); }
  .description { font-size: 17px; max-width: 34ch; }
  .art { align-self: center; margin-top: -24px; }
}
@media (max-width: 800px) {
  .header { min-height: 88px; }
  .brand { font-size: 20px; gap: 12px; letter-spacing: .11em; }
  .header-note { justify-content: flex-end; }
  .header-note > span:first-child { display: none; }
  .intro { padding-block: 24px 32px; grid-template-columns: 1fr; }
  .intro > span:last-child { display: none; }
  .hero { grid-template-columns: 1fr; gap: 24px; padding-bottom: 32px; }
  .hero h1 { font-size: clamp(44px, 9.4vw, 72px); }
  .description { max-width: 34ch; margin-top: 24px; }
  .signup { margin-top: 24px; display: flex; flex-direction: column; align-items: flex-start; }
  .art { margin: 0; width: 100%; max-width: 560px; justify-self: center; align-self: auto; }
  .details { gap: 24px; padding-block: 32px; }
  .detail h2 { font-size: 15px; }
  .detail p { font-size: 13px; }
}
@media (max-width: 600px) {
  :root { --gutter: 24px; }
  .header { grid-template-columns: 1fr auto; gap: 16px; }
  .header-note { font-size: 10px; letter-spacing: .025em; }
  .hero h1 { font-size: clamp(40px, 11.5vw, 64px); }
  h1 .outline { -webkit-text-stroke-width: 1.5px; }
  .description { font-size: 17px; }
  .tagline { font-size: 16px; }
  .details { grid-template-columns: 1fr; gap: 24px; }
  .detail h2 { font-size: 16px; }
  .detail p { font-size: 14px; max-width: none; }
  .footer { font-size: 11px; letter-spacing: .035em; padding-block: 28px 36px; }
  .header .back-link { max-width: 75px; text-align: right; }
}
@media (max-width: 359px) { .brand { font-size: 18px; gap: 10px; } .header-note { display: none; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }

/* The full headline keeps its layout and accessible name throughout. */
.type-character { white-space: pre; visibility: visible; opacity: 1; }
@keyframes ultrasound-type {
  from { visibility: hidden; }
  to { visibility: visible; }
}
@keyframes ultrasound-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}
@media (prefers-reduced-motion: no-preference) {
  .type-character { animation: ultrasound-type 1ms step-end var(--type-delay) backwards; }
  .art.art-pending { opacity: 0; }
  .art.art-revealing { animation: ultrasound-fade 1400ms ease-out backwards; }
}

/* The artwork's line motif becomes the break between sections. */
.hero { padding-bottom: 8px; }
.wave-divider {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  height: 88px;
  color: var(--navy);
  opacity: .62;
  overflow: hidden;
  pointer-events: none;
}
.wave-divider svg { display: block; width: 100%; height: 100%; }
.wave-divider path { vector-effect: non-scaling-stroke; }
.details { border-top: 0; padding-top: 32px; }
@media (max-width: 800px) {
  .hero { padding-bottom: 0; }
  .wave-divider { height: 64px; }
  .details { padding-top: 24px; }
}

/* Paired full-bleed wave rules echo the illustration divider. */
.header { position: relative; border-bottom-color: transparent; }
.details { border-bottom: 0; }
.footer { position: relative; }
.header::after, .footer::before {
  content: "";
  position: absolute;
  left: calc(50% - 50vw);
  width: 100vw;
  height: 18px;
  background: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201200%2018%22%20preserveAspectRatio%3D%22none%22%3E%3Cg%20fill%3D%22none%22%20stroke%3D%22%23788b90%22%20stroke-width%3D%221%22%3E%3Cpath%20d%3D%22M0%207H460C590%207%20650%203%20780%203S990%207%201120%207H1200%22%20vector-effect%3D%22non-scaling-stroke%22%2F%3E%3Cpath%20d%3D%22M0%2013H460C590%2013%20650%209%20780%209S990%2013%201120%2013H1200%22%20vector-effect%3D%22non-scaling-stroke%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E") center / 100% 100% no-repeat;
  pointer-events: none;
}
.header::after { bottom: -9px; }
.footer::before { top: -9px; }

.signup-dialog-heading { display: flex; justify-content: space-between; align-items: start; gap: 16px; }
.signup-dialog-heading button { background: transparent; color: var(--navy); padding: 0; min-height: 32px; min-width: 32px; font-size: 26px; }
#email-signup fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
#email-signup label { font-size: 14px; line-height: 1.5; }
#signup-email { display: block; width: 100%; margin-top: 8px; padding: 14px; border: 1px solid var(--rule); border-radius: 0; background: transparent; color: var(--navy); font-size: 16px; }
#email-signup input:focus-visible { outline: 2px solid var(--navy); outline-offset: 3px; }
.signup-consent { display: flex; align-items: start; gap: 12px; margin-block: 20px; }
.signup-consent input { width: 18px; height: 18px; margin: 2px 0 0; flex-shrink: 0; accent-color: var(--navy); }
.signup-trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
#email-signup .signup-small { font-size: 12px; line-height: 1.6; }
#email-signup button[type="submit"] { width: 100%; }
#email-signup button:disabled { opacity: .5; cursor: not-allowed; }
#signup-message { margin: 16px 0 0; font-size: 13px; }