:root {
  --stone: #ccc4bd;
  --stone-deep: #b7aea5;
  --paper: #e8e1da;
  --ink: #18151c;
  --ink-soft: #242028;
  --muted: #6f6861;
  --shirt: #f4f0eb;
  --line: color-mix(in srgb, var(--ink) 14%, transparent);
  --radius-btn: 999px;
  --font-display: "Bricolage Grotesque", Georgia, serif;
  --font-body: "Sora", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(120% 80% at 85% 10%, #d9d1c9 0%, transparent 55%),
    radial-gradient(90% 70% at 0% 100%, #c2b8af 0%, transparent 50%),
    linear-gradient(165deg, var(--shirt) 0%, var(--stone) 48%, var(--stone-deep) 100%);
  background-attachment: fixed;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--shirt);
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem clamp(1.25rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--stone) 72%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transform: translateY(0);
  transition: transform 0.45s var(--ease), background 0.3s ease;
}

.site-header.is-hidden {
  transform: translateY(-110%);
}

.brand-mark img {
  width: 36px;
  height: 36px;
  border-radius: 22%;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--ink) 18%, transparent);
}

.brand-word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.header-nav {
  margin-left: auto;
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.header-nav a {
  text-decoration: none;
  opacity: 0.78;
  transition: opacity 0.2s ease;
}

.header-nav a:hover,
.header-nav a:focus-visible {
  opacity: 1;
}

/* —— Hero: icon above a centered text stack —— */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: clip;
  padding: clamp(5.5rem, 12vh, 7rem) clamp(1.25rem, 4vw, 2.5rem) clamp(2rem, 5vh, 3rem);
}

.hero-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: min(100%, 36rem);
  margin-inline: auto;
  animation: copy-in 1s var(--ease) 0.12s both;
}

.hero-visual {
  width: clamp(5.75rem, 16vw, 7.5rem);
  margin-bottom: 1.35rem;
}

.hero-icon {
  width: 100%;
  aspect-ratio: 1;
  height: auto;
  display: block;
  border-radius: 22%;
  box-shadow:
    0 1px 0 color-mix(in srgb, var(--ink) 10%, transparent),
    0 14px 34px color-mix(in srgb, var(--ink) 14%, transparent);
  animation: icon-rise 1.35s var(--ease) both;
}

.hero-copy {
  width: 100%;
}

.brand-hero {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.8rem, 8vw, 4.6rem);
  line-height: 0.92;
  letter-spacing: -0.055em;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.lede {
  margin: 0 auto 1.75rem;
  max-width: 28rem;
  color: var(--ink-soft);
  font-size: clamp(1rem, 2.2vw, 1.125rem);
}

.cta-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3rem;
  padding: 0.7rem 1.25rem 0.7rem 1.1rem;
  border-radius: var(--radius-btn);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  overflow: visible;
  transition: transform 0.25s var(--ease), background 0.2s ease, color 0.2s ease, box-shadow 0.25s ease;
}

.btn-icon {
  display: inline-grid;
  place-items: center;
  width: 1.2rem;
  height: 1.2rem;
  flex: 0 0 1.2rem;
  overflow: visible;
}

.btn-icon svg {
  width: 1.2rem;
  height: 1.2rem;
  display: block;
  overflow: visible;
}

/* optical size matching across uneven brand marks */
.btn-icon--apple svg {
  transform: scale(0.92);
}

.btn-icon--android svg {
  transform: scale(0.9);
}

.btn-icon--windows svg {
  transform: scale(0.84);
}

.btn-icon--linux svg {
  transform: scale(0.94);
}

.btn span {
  display: inline-block;
  line-height: 1.2rem;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--ink);
  color: var(--shirt);
  box-shadow: 0 10px 28px color-mix(in srgb, var(--ink) 22%, transparent);
}

.btn-primary:hover {
  background: var(--ink-soft);
}

.btn-ghost {
  background: color-mix(in srgb, var(--shirt) 70%, transparent);
  border: 1.5px solid color-mix(in srgb, var(--ink) 42%, transparent);
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--shirt);
}

/* —— Sections —— */
.protocols,
.get {
  position: relative;
  z-index: 1;
  padding: clamp(3.5rem, 9vh, 6rem) clamp(1.25rem, 4vw, 2.5rem);
  max-width: 72rem;
  margin: 0 auto;
}

.legal {
  min-height: 100svh;
  max-width: 48rem;
  margin: 0 auto;
  padding: clamp(7rem, 14vh, 9rem) clamp(1.25rem, 5vw, 3rem) 4rem;
}

.legal h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.legal p {
  max-width: 42rem;
  font-size: clamp(1rem, 2.4vw, 1.15rem);
}

.legal .fine {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.protocols h2,
.get h2 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 750;
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
  max-width: 18ch;
}

.section-lede {
  margin: 0 0 2rem;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.protocol-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.protocol-list li {
  display: grid;
  grid-template-columns: minmax(7rem, 11rem) 1fr;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 1rem;
  color: var(--ink-soft);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.protocol-list li.is-in {
  opacity: 1;
  transform: none;
}

.protocol-list span {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.store-links {
  display: grid;
  gap: 0.85rem;
}

.store {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1.15rem 0;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: padding-left 0.3s var(--ease);
}

.store:first-child {
  border-top: 1px solid var(--line);
}

.store:hover,
.store:focus-visible {
  padding-left: 0.5rem;
}

.store strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.store span {
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer {
  padding: 2.5rem clamp(1.25rem, 4vw, 2.5rem) 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0 0 0.35rem;
  max-width: 36rem;
}

.site-footer strong {
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
}

.fine {
  font-size: 0.85rem;
}

@keyframes icon-rise {
  from {
    opacity: 0;
    transform: translate3d(0, 10px, 0) scale(0.96);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes copy-in {
  from {
    opacity: 0;
    transform: translate3d(0, 18px, 0);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 719px) {
  .hero {
    align-items: end;
    justify-content: center;
  }

  .hero-stage {
    width: 100%;
  }

  .hero-visual {
    width: 5.25rem;
    margin-bottom: 1.1rem;
  }
}

@media (min-width: 900px) {
  .protocol-list {
    max-width: 42rem;
  }

  .store-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .store {
    padding: 1.4rem 1.25rem 1.4rem 0;
    border-bottom: 0;
    border-top: 1px solid var(--line);
  }

  .store:first-child {
    border-top: 1px solid var(--line);
  }

  .store + .store {
    border-left: 1px solid var(--line);
    padding-left: 1.5rem;
  }

  .store:hover,
  .store:focus-visible {
    padding-left: 0.35rem;
  }

  .store + .store:hover,
  .store + .store:focus-visible {
    padding-left: 1.85rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .protocol-list li {
    opacity: 1;
    transform: none;
  }
}