/* ==========================================================================
   Keep — shared site styles (home, case study, about)
   Self-hosted fonts, warm print palette, flat integrated chrome.
   ========================================================================== */

@font-face {
  font-family: 'OTR No Cigar';
  src: url('/fonts/OTRNoCigarRegular.woff') format('woff');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Newsreader';
  src: url('/fonts/newsreader-latin.woff2') format('woff2');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Newsreader';
  src: url('/fonts/newsreader-italic-400-latin.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

:root {
  --parchment: #f4ecdc;
  --parchment-deep: #e6d9bf;
  --surface-lift: #faf6ec;
  --ink: #2b2118;
  --ink-quiet: #6a5c48;
  --indigo: #141b2e;
  --gold: #e8b84b;
  --gold-ember: #c98a2b;
  --lapis: #2b4c8c;
  --hairline: color-mix(in srgb, var(--ink) 14%, transparent);
  --hairline-soft: color-mix(in srgb, var(--ink) 8%, transparent);
  --font-display: 'Newsreader', 'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-mark: 'OTR No Cigar', 'Avenir Next Condensed', sans-serif;
  --font-label: 'OTR No Cigar', 'Avenir Next Condensed', sans-serif;
  --content-max: 68rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
}

body {
  position: relative;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-display);
  line-height: 1.6;
  background-color: var(--parchment);
  background-image:
    radial-gradient(120% 80% at 50% -10%, color-mix(in srgb, var(--gold) 15%, transparent), transparent 58%),
    url('/textures/grain-512.png');
  background-repeat: no-repeat, repeat;
  background-size: cover, 512px 512px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--gold-ember);
  outline-offset: 3px;
  border-radius: 3px;
}

.nowrap {
  white-space: nowrap;
}

/* the signature mist, rising from the foot and dissolving up into parchment */
.mist {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: clamp(420px, 62vh, 820px);
  background: url('/plates/landing-dawn.webp') center bottom / cover no-repeat;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 46%);
  mask-image: linear-gradient(to bottom, transparent 0%, #000 46%);
  opacity: 0.9;
  z-index: 0;
  pointer-events: none;
}

/* ==========================================================================
   CHROME — flat, integrated. No raised surfaces, no blur, no pull-down.
   ========================================================================== */
.chrome {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

/* Signalform studio mark — top-left branding on every surface */
.studio {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
}

.studio b {
  font-family: var(--font-label);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 400;
}

.studio i {
  font-style: italic;
  font-size: 0.82rem;
  color: var(--ink-quiet);
}

/* flat text nav */
.menu {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 28px);
}

.menu a {
  font-family: var(--font-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.68rem;
  text-decoration: none;
  color: color-mix(in srgb, var(--ink) 72%, transparent);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
  white-space: nowrap;
}

.menu a:hover,
.menu a[aria-current='page'] {
  color: var(--ink);
  border-color: var(--gold-ember);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 28px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--parchment);
  text-decoration: none;
  font-family: var(--font-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.82rem;
  transition: transform 180ms ease, background 180ms ease;
}

.cta:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--ink) 88%, var(--lapis));
}

.cta svg {
  width: 18px;
  height: 18px;
}

.linkish {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-style: italic;
  font-size: 1.02rem;
  color: var(--ink-quiet);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.linkish:hover {
  color: var(--ink);
  border-color: var(--gold-ember);
}

.linkish svg {
  width: 15px;
  height: 15px;
}

/* ==========================================================================
   HOME — a single, non-scrollable surface
   ========================================================================== */
body.home {
  height: 100dvh;
  overflow: hidden;
}

.surface {
  position: relative;
  z-index: 1;
  height: 100dvh;
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3.4vh, 34px) clamp(22px, 6vw, 56px) clamp(20px, 3vh, 30px);
}

.home-hero {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(28px, 6vw, 72px);
}

.home-hero__copy {
  display: grid;
  gap: clamp(14px, 2.2vh, 22px);
  align-content: center;
  max-width: 38rem;
}

.eyebrow {
  margin: 0;
  font-family: var(--font-label);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: color-mix(in srgb, var(--ink) 62%, transparent);
}

.wordmark {
  margin: 0;
  font-family: var(--font-mark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 0.86;
  font-size: clamp(4.6rem, 17vw, 11rem);
  color: color-mix(in srgb, var(--ink) 96%, #000);
}

.home-hero__lead {
  margin: 0;
  font-size: clamp(1.18rem, 2.5vw, 1.5rem);
  line-height: 1.42;
  color: color-mix(in srgb, var(--ink) 84%, transparent);
  max-width: 30rem;
}

.home-hero__lead em {
  font-style: italic;
}

/* de-emphasized: kept as a quiet whisper, no longer the headline */
.home-hero__whisper {
  margin: 0;
  font-style: italic;
  font-size: 1.02rem;
  color: color-mix(in srgb, var(--ink) 52%, transparent);
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  margin-top: clamp(6px, 1.4vh, 14px);
}

/* the product screen, small and set into the surface */
.home-phone {
  position: relative;
  width: clamp(190px, 22vw, 260px);
  aspect-ratio: 408 / 768;
  padding: 8px;
  border-radius: 38px;
  background: linear-gradient(155deg, #3a3f4d 0%, #12172a 55%, #090d18 100%);
  box-shadow:
    0 40px 90px -22px color-mix(in srgb, var(--indigo) 70%, transparent),
    0 10px 26px rgba(0, 0, 0, 0.26);
}

.home-phone::after {
  content: '';
  position: absolute;
  inset: -16% -20%;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--gold) 38%, transparent), transparent 62%);
  z-index: -1;
  filter: blur(14px);
}

.home-phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 30px;
  display: block;
}

.surface__foot {
  flex: none;
  padding-top: clamp(10px, 2vh, 18px);
  font-family: var(--font-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.6rem;
  color: color-mix(in srgb, var(--ink) 46%, transparent);
}

/* ==========================================================================
   ARTICLE PAGES (case study + about) — scrollable
   ========================================================================== */
body.study .pagenav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--parchment);
  border-bottom: 1px solid var(--hairline-soft);
}

.pagenav__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 16px clamp(22px, 6vw, 56px);
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(22px, 6vw, 56px);
}

.pagehead {
  position: relative;
  z-index: 1;
  padding: clamp(56px, 12vh, 128px) 0 clamp(20px, 4vh, 44px);
}

.pagehead h1 {
  margin: 14px 0 0;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.06;
  font-size: clamp(2.4rem, 6vw, 4rem);
  max-width: 18ch;
}

.pagehead h1 em {
  font-style: italic;
}

.section {
  position: relative;
  z-index: 1;
  padding: clamp(40px, 7vh, 84px) 0;
}

.section + .section {
  border-top: 1px solid var(--hairline-soft);
}

.section__eyebrow {
  font-family: var(--font-label);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--gold-ember);
  margin: 0 0 18px;
}

.section__title {
  margin: 0 0 22px;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.08;
  font-size: clamp(2rem, 5vw, 3.1rem);
  max-width: 20ch;
}

.section__title em {
  font-style: italic;
}

.section__lead {
  margin: 0 0 8px;
  font-size: clamp(1.16rem, 2.4vw, 1.42rem);
  line-height: 1.5;
  color: color-mix(in srgb, var(--ink) 84%, transparent);
  max-width: 40rem;
}

.prose p {
  margin: 0 0 1.1em;
  font-size: 1.08rem;
  line-height: 1.62;
  color: color-mix(in srgb, var(--ink) 82%, transparent);
  max-width: 40rem;
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose em {
  font-style: italic;
}

/* facts strip */
.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 8px 0 clamp(32px, 6vh, 60px);
  background: var(--hairline-soft);
  border: 1px solid var(--hairline-soft);
  border-radius: 14px;
  overflow: hidden;
}

.facts div {
  background: color-mix(in srgb, var(--surface-lift) 70%, transparent);
  padding: 20px 22px;
}

.facts dt {
  font-family: var(--font-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.62rem;
  color: var(--gold-ember);
  margin: 0 0 8px;
}

.facts dd {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.4;
  color: color-mix(in srgb, var(--ink) 86%, transparent);
}

/* decision cards */
.decisions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(24px, 4vh, 40px);
}

.decision {
  padding: clamp(22px, 2.6vw, 30px);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-lift) 55%, transparent);
}

.decision .idx {
  font-family: var(--font-label);
  letter-spacing: 0.2em;
  font-size: 0.66rem;
  color: var(--gold-ember);
}

.decision h3 {
  margin: 12px 0 10px;
  font-weight: 400;
  font-size: 1.34rem;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.decision p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--ink-quiet);
}

/* pull-quote */
.pullquote {
  margin: clamp(32px, 5vh, 56px) 0;
  padding-left: clamp(20px, 3vw, 34px);
  border-left: 2px solid var(--gold-ember);
}

.pullquote p {
  margin: 0;
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  font-style: italic;
  line-height: 1.32;
  color: color-mix(in srgb, var(--ink) 90%, #000);
  max-width: 30ch;
}

/* build list */
.build-list {
  margin: clamp(20px, 3.5vh, 36px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
  max-width: 44rem;
}

.build-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: baseline;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hairline-soft);
}

.build-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.build-list b {
  font-family: var(--font-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.66rem;
  color: var(--gold-ember);
  white-space: nowrap;
  padding-top: 3px;
}

.build-list span {
  font-size: 1.04rem;
  line-height: 1.55;
  color: color-mix(in srgb, var(--ink) 82%, transparent);
}

/* product screens gallery */
.shots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 3vw, 34px);
  margin: clamp(24px, 4vh, 44px) 0 0;
}

.shots figure {
  margin: 0;
}

.shots .frame {
  position: relative;
  aspect-ratio: 408 / 768;
  border-radius: 28px;
  padding: 7px;
  background: linear-gradient(155deg, #3a3f4d 0%, #12172a 55%, #090d18 100%);
  box-shadow:
    0 30px 60px -26px color-mix(in srgb, var(--indigo) 70%, transparent),
    0 8px 20px rgba(0, 0, 0, 0.24);
}

.shots .frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 22px;
  display: block;
}

.shots figcaption {
  margin-top: 14px;
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--ink-quiet);
}

.shots figcaption b {
  display: block;
  font-family: var(--font-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.64rem;
  color: var(--gold-ember);
  margin-bottom: 5px;
}

/* about — intro: bio text paired with the portrait, photo centered against
   the text so the two columns read as one block instead of drifting apart. */
.about-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(32px, 6vw, 84px);
  align-items: center;
}

.about-intro__photo {
  justify-self: end;
}

/* portrait — a tastefully framed photo of the maker */
.portrait {
  position: relative;
  width: clamp(208px, 25vw, 300px);
  aspect-ratio: 4 / 5;
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background: color-mix(in srgb, var(--parchment-deep) 70%, var(--parchment));
  box-shadow:
    0 1px 0 color-mix(in srgb, #fff 60%, transparent) inset,
    0 24px 44px -22px rgba(20, 16, 10, 0.5);
  outline: 1px solid var(--hairline);
  outline-offset: 5px;
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.92) contrast(1.02);
}

/* placeholder shown until a photo is dropped in at /portrait.jpg */
.portrait.is-empty::after {
  content: 'MM';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mark);
  letter-spacing: 0.1em;
  font-size: 2rem;
  color: color-mix(in srgb, var(--ink) 40%, transparent);
}

.learnings {
  margin: clamp(24px, 4vh, 40px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(24px, 3vw, 40px) clamp(32px, 5vw, 72px);
}

.learnings li {
  border-top: 1px solid var(--hairline);
  padding-top: 16px;
}

.learnings b {
  display: block;
  font-weight: 400;
  font-size: 1.22rem;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.learnings span {
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--ink-quiet);
}

/* footer */
.foot {
  position: relative;
  z-index: 1;
  padding: clamp(36px, 7vh, 80px) 0 clamp(44px, 8vh, 88px);
  border-top: 1px solid var(--hairline);
}

.foot__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(22px, 6vw, 56px);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px 28px;
}

.foot__note {
  font-family: var(--font-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.62rem;
  color: color-mix(in srgb, var(--ink) 52%, transparent);
}

.foot__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 22px;
}

.foot__nav a {
  color: color-mix(in srgb, var(--ink) 72%, transparent);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.98rem;
}

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

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
  .decisions {
    grid-template-columns: 1fr;
  }
  .facts {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .about-intro {
    grid-template-columns: 1fr;
    justify-items: start;
  }
  .about-intro__photo {
    order: -1;
    justify-self: start;
  }
  .learnings {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 760px) {
  /* HOME goes single-column; the phone steps aside so the surface stays
     one clean, non-scrolling screen. */
  .home-hero {
    grid-template-columns: 1fr;
    align-content: center;
  }
  .home-phone {
    display: none;
  }
  .wordmark {
    font-size: clamp(4rem, 26vw, 7rem);
  }
  .home-hero__lead {
    font-size: 1.16rem;
  }
  .shots {
    grid-template-columns: 1fr;
    max-width: 22rem;
  }
}

/* article-page nav: the "Open the Prototype" label is too wide for a phone;
   drop it from the top bar (the prototype CTA still lives in the page body
   and footer) so the nav never overflows. */
@media (max-width: 680px) {
  .pagenav .menu a[href="/welcome"] {
    display: none;
  }
}

@media (max-width: 520px) {
  .facts {
    grid-template-columns: 1fr;
  }
  .studio i {
    display: none;
  }
  .menu {
    gap: 16px;
  }
  .surface {
    padding-top: clamp(16px, 3vh, 24px);
  }
}

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