/* ------------------------------------------------------------
   Once Upon a Line, by Pauline Visser
   Direction: the page is uncoloured. Colour only arrives when
   the visitor chooses it. Everything else stays quiet.
   ------------------------------------------------------------ */

:root {
  --paper:      #FBFAF7;
  --paper-deep: #F2F0E9;
  --ink:        #17171A;
  --ink-soft:   #56554F;
  --rule:       #DDDACF;

  --display: "Fraunces", Georgia, serif;
  --body:    "Karla", system-ui, -apple-system, sans-serif;

  --measure: 34rem;
  --gutter: clamp(1.25rem, 5vw, 4rem);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 300;
  font-size: clamp(1rem, 0.97rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
}

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

a { color: inherit; text-underline-offset: 0.25em; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: var(--ink-soft); }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper);
  padding: 0.75rem 1rem; z-index: 10;
}
.skip:focus { left: 0; }

/* ---------------- Masthead ---------------- */

.masthead {
  padding: clamp(1.75rem, 4vw, 3rem) var(--gutter) 0;
}

.wordmark { margin: 0; display: flex; flex-direction: column; gap: 0.15em; }

.wordmark-line {
  font-family: var(--display);
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(1.15rem, 1rem + 0.7vw, 1.5rem);
  letter-spacing: 0.01em;
}

.wordmark-by {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------------- Hero ---------------- */

.hero {
  display: grid;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
  padding: clamp(3rem, 9vw, 7rem) var(--gutter) clamp(3rem, 8vw, 6rem);
  max-width: 78rem;
  margin-inline: auto;
}

@media (min-width: 56rem) {
  .hero { grid-template-columns: 1.15fr 0.85fr; }
}

.hero h1 {
  font-family: var(--display);
  font-optical-sizing: auto;
  font-weight: 300;
  font-size: clamp(2.4rem, 1.4rem + 4.4vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  text-wrap: balance;
}

.lede {
  max-width: var(--measure);
  margin: 0;
  font-size: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
  color: var(--ink-soft);
}

/* ---------------- The drawing (signature element) ---------------- */

.hero-art { margin: 0; }

.drawing-frame {
  position: relative;
  width: 100%;
  max-width: 20rem;
  margin-inline: auto;
  border: 1px solid var(--rule);
  overflow: hidden;
}

.drawing-photo {
  display: block;
  width: 100%;
  height: auto;
}

.drawing-tint {
  position: absolute;
  inset: 0;
  background-color: var(--fill, transparent);
  mix-blend-mode: multiply;
  opacity: 0;
  transition: opacity 700ms ease, background-color 700ms ease;
  pointer-events: none;
}

.drawing-tint.is-active { opacity: 0.4; }

@media (prefers-reduced-motion: reduce) {
  .drawing-tint { transition: none; }
}

.swatches {
  margin: 1.75rem 0 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.swatch-label {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.swatch-row { display: flex; gap: 0.6rem; }

.swatch {
  inline-size: 1.6rem;
  block-size: 1.6rem;
  padding: 0;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--swatch, transparent);
  cursor: pointer;
  transition: transform 200ms ease;
}

.swatch:hover { transform: translateY(-2px); }
.swatch[aria-pressed="true"] { box-shadow: 0 0 0 1px var(--paper), 0 0 0 2.5px var(--ink); }
.swatch-clear { background: var(--paper); }

@media (prefers-reduced-motion: reduce) {
  .swatch { transition: none; }
  .swatch:hover { transform: none; }
}

/* ---------------- Sections ---------------- */

.section {
  padding: clamp(3.5rem, 9vw, 7rem) var(--gutter);
  max-width: 78rem;
  margin-inline: auto;
  border-top: 1px solid var(--rule);
}

.eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 1.25rem;
}

.section h2 {
  font-family: var(--display);
  font-optical-sizing: auto;
  font-weight: 300;
  font-size: clamp(1.7rem, 1.2rem + 2vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem;
  max-width: 22ch;
  text-wrap: balance;
}

.prose p, .prose-narrow { max-width: var(--measure); }
.prose p + p { margin-top: 1.1rem; }

/* Who */

.who { display: grid; gap: clamp(2rem, 6vw, 4.5rem); align-items: center; }

@media (min-width: 56rem) {
  .who { grid-template-columns: 0.8fr 1.2fr; }
}

.portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: var(--paper-deep);
  filter: grayscale(1) contrast(1.02);
}

.sig {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: 1.3rem;
  color: var(--ink-soft);
  margin-top: 1.75rem;
}

/* Signup */

.signup { border-top: 1px solid var(--rule); }
.signup-inner { max-width: var(--measure); }
.signup h2 { margin-bottom: 1rem; }
.signup p { color: var(--ink-soft); margin: 0 0 2rem; }

.signup-form { display: flex; flex-direction: column; gap: 1.1rem; align-items: flex-start; }

.field { display: flex; flex-direction: column; gap: 0.4rem; width: min(100%, 24rem); }

.field label {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.field input {
  font: inherit;
  padding: 0.7rem 0.85rem;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink);
}

.field input:focus { border-color: var(--ink); }

.consent {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  max-width: 28rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.consent input { margin-top: 0.3rem; accent-color: var(--ink); }

.btn {
  font: inherit;
  font-weight: 500;
  padding: 0.7rem 1.6rem;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 2px;
  cursor: pointer;
}

.btn:hover { background: transparent; color: var(--ink); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn:disabled:hover { background: var(--ink); color: var(--paper); }

.signup-form:has(:disabled) .field input,
.signup-form:has(:disabled) .consent { opacity: 0.5; }

.form-note {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------------- Footer ---------------- */

.footer {
  border-top: 1px solid var(--rule);
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter);
  max-width: 78rem;
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  align-items: baseline;
  justify-content: space-between;
}

.footer p { margin: 0; }

.footer-mark {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1rem;
}

.footer-meta { display: flex; gap: 0.75rem; font-size: 0.9rem; }
.footer-meta span { color: var(--rule); }

.footer-legal {
  font-size: 0.8rem;
  color: var(--ink-soft);
  width: 100%;
  padding-top: 1rem;
}