@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url('fonts/public-sans-latin-ext-wght-normal.woff2') format('woff2-variations');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329,
    U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url('fonts/public-sans-latin-wght-normal.woff2') format('woff2-variations');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329,
    U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --ink: #13294b;
  --ink-soft: #4a5d7a;
  --paper: #f7f9fc;
  --sheet: #ffffff;
  --grid: #dde6f1;
  --pen: #2456c9;
  --pen-strong: #1a43a3;
  --marker: #ffdf5e;
  --ok: #1f7a4d;
  --error: #b42318;
  --line: #c9d5e5;
  --grid-size: 24px;
  --font: 'Public Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e6edf7;
    --ink-soft: #a7b5c9;
    --paper: #0f1a2c;
    --sheet: #172438;
    --grid: #1c2a40;
    --pen: #8fb0ff;
    --pen-strong: #b5ccff;
    --marker: #e8c63d;
    --ok: #6fd3a0;
    --error: #ff8f86;
    --line: #2b3c57;
    color-scheme: dark;
  }
}

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

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--pen);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--pen-strong);
}

:focus-visible {
  outline: 3px solid var(--pen);
  outline-offset: 2px;
  border-radius: 4px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.25rem, 5.2vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.625rem, 3.2vw, 2.25rem);
  font-weight: 750;
  letter-spacing: -0.015em;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

p {
  margin: 0 0 1rem;
}

.top,
main > section,
.bottom {
  width: min(100% - 32px, 1120px);
  margin-inline: auto;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
}

.brand-tld {
  color: var(--ink-soft);
  font-weight: 500;
}

.brand-mark {
  width: 32px;
  height: 32px;
}

.brand-mark-bg {
  fill: var(--ink);
}

.brand-mark-lines {
  stroke: var(--paper);
  stroke-width: 2.2;
  stroke-linecap: round;
  fill: none;
}

.brand-mark-tick {
  stroke: var(--marker);
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top-nav a:not(.button) {
  color: var(--ink);
  text-decoration: none;
  font-weight: 550;
}

.top-nav a:not(.button):hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .top-nav a:not(.button) {
    display: none;
  }
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.6rem 1.25rem;
  border: 2px solid var(--pen);
  border-radius: 10px;
  background: var(--pen);
  color: #fff;
  font: inherit;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
}

.button:hover {
  background: var(--pen-strong);
  border-color: var(--pen-strong);
  color: #fff;
}

.button-quiet {
  background: var(--sheet);
  color: var(--pen);
}

.button-quiet:hover {
  background: var(--sheet);
  color: var(--pen-strong);
}

@media (prefers-color-scheme: dark) {
  .button,
  .button:hover {
    color: #0f1a2c;
  }

  .button-quiet,
  .button-quiet:hover {
    color: var(--pen);
  }
}

.button[disabled] {
  opacity: 0.6;
  cursor: progress;
}

/* hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding-block: clamp(2.5rem, 8vw, 6rem) clamp(3rem, 8vw, 6rem);
}

.lead {
  max-width: 36em;
  margin-top: 1.5rem;
  font-size: 1.1875rem;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.slip {
  margin: 0;
  justify-self: center;
  width: min(100% - 16px, 380px);
}

.slip-paper {
  position: relative;
  padding: 1.75rem 1.5rem 2.25rem;
  background: var(--sheet);
  border: 1px solid var(--line);
  border-bottom: 0;
  box-shadow: 0 18px 40px -18px rgb(19 41 75 / 0.35);
  transform: rotate(-1.5deg);
  font-variant-numeric: tabular-nums;
  animation: slip-in 700ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.slip-paper::after {
  content: '';
  position: absolute;
  left: -1px;
  right: -1px;
  bottom: -10px;
  height: 10px;
  background:
    linear-gradient(-45deg, transparent 6px, var(--sheet) 0) 0 0 / 14px 10px repeat-x,
    linear-gradient(45deg, transparent 6px, var(--sheet) 0) 0 0 / 14px 10px repeat-x;
}

@keyframes slip-in {
  from {
    opacity: 0;
    transform: translateY(-24px) rotate(-1.5deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .slip-paper {
    animation: none;
  }
}

.slip-title {
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--ink);
  font-weight: 750;
}

.slip-lines {
  margin: 0;
}

.slip-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-block: 0.45rem;
  border-bottom: 1px dashed var(--line);
}

.slip-line dt {
  display: flex;
  flex-direction: column;
}

.slip-line small {
  color: var(--ink-soft);
  font-size: 0.8125rem;
}

.slip-line dd {
  margin: 0;
  font-weight: 600;
  white-space: nowrap;
}

.slip-line-muted {
  color: var(--ink-soft);
}

.slip-line-muted dd {
  font-weight: 500;
}

.slip-total {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  margin: 1.25rem 0 0.75rem;
  font-weight: 700;
}

.slip-total mark {
  padding: 0.05em 0.35em;
  background: linear-gradient(100deg, transparent 2%, var(--marker) 4%, var(--marker) 96%, transparent 98%);
  color: #13294b;
  font-size: 1.375rem;
  font-weight: 800;
  white-space: nowrap;
}

.slip-files {
  margin: 0;
  color: var(--ok);
  font-size: 0.9375rem;
  font-weight: 600;
}

.slip figcaption {
  margin-top: 1.5rem;
  color: var(--ink-soft);
  font-size: 0.875rem;
  text-align: center;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* sections */

main > section:not(.hero) {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 2px solid var(--ink);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  max-width: 34em;
}

.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--sheet);
  font-weight: 800;
}

.steps p,
.details li,
.fit li {
  color: var(--ink-soft);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}

.details ul,
.fit ul {
  margin: 0;
  padding-left: 1.1rem;
}

.details li,
.fit li {
  margin-bottom: 0.4rem;
}

.fit-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
}

.fit-yes,
.fit-not {
  padding: 1.5rem;
  border-radius: 14px;
  background: var(--sheet);
  border: 1px solid var(--line);
}

.fit-yes {
  border-left: 6px solid var(--ok);
}

.fit-not {
  border-left: 6px solid var(--line);
}

@media (max-width: 860px) {
  .steps,
  .details-grid,
  .fit-columns {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* sign-up */

.join {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.join-text p {
  max-width: 34em;
  color: var(--ink-soft);
}

.join-mail {
  font-weight: 600;
}

@media (max-width: 860px) {
  .join {
    grid-template-columns: minmax(0, 1fr);
  }
}

.form {
  display: grid;
  gap: 1rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 2px solid var(--ink);
  border-radius: 16px;
  background: var(--sheet);
}

.form-kind {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 0;
  padding: 0;
  border: 0;
}

.form-kind legend {
  margin-bottom: 0.5rem;
  font-weight: 650;
}

.form-kind label,
.consent {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  cursor: pointer;
}

.form-kind input,
.consent input {
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.25rem;
  accent-color: var(--pen);
  flex: none;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field > span {
  font-weight: 650;
}

.field em {
  color: var(--ink-soft);
  font-style: normal;
  font-weight: 450;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.65rem 0.8rem;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.field textarea {
  resize: vertical;
}

.field input:focus-visible,
.field textarea:focus-visible {
  outline: none;
  border-color: var(--pen);
  box-shadow: 0 0 0 3px rgb(36 86 201 / 0.25);
}

.field input[aria-invalid='true'],
.field textarea[aria-invalid='true'] {
  border-color: var(--error);
}

.consent {
  font-size: 0.9375rem;
  color: var(--ink-soft);
}

.field-error {
  color: var(--error);
  font-size: 0.875rem;
}

.field-error:empty {
  display: none;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form .button {
  justify-self: start;
}

.form-status {
  margin: 0;
  font-weight: 600;
}

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

.form-status[data-state='ok'] {
  color: var(--ok);
}

.form-status[data-state='error'] {
  color: var(--error);
}

/* footer */

.bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  padding-block: 2rem 3rem;
  border-top: 2px solid var(--ink);
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.bottom p {
  margin: 0;
}

/* text pages */

.page {
  width: min(100% - 32px, 760px);
  margin: 0 auto;
  padding-block: 2rem 4rem;
}

.page h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 1.5rem;
}

.page h2 {
  font-size: 1.375rem;
  margin: 2.25rem 0 0.75rem;
}

.page p,
.page li {
  color: var(--ink-soft);
}

.page-sheet {
  padding: clamp(1.25rem, 4vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--sheet);
}