/* Cloudling — paper-sky editorial system */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* color — neutrals tinted toward the sky-blue brand hue */
  --paper:      oklch(97.6% 0.007 240);
  --paper-deep: oklch(94.8% 0.012 238);
  --ink:        oklch(25% 0.03 255);
  --ink-soft:   oklch(42% 0.028 252);
  --ink-faint:  oklch(58% 0.02 250);
  --line:       oklch(87% 0.015 245);
  --line-soft:  oklch(91.5% 0.012 243);
  --sky:        oklch(50% 0.15 252);
  --sky-deep:   oklch(42% 0.15 254);

  /* product tints */
  --rose:   oklch(55% 0.16 15);
  --green:  oklch(50% 0.115 155);
  --violet: oklch(46% 0.14 295);

  /* type */
  --font-display: "Bricolage Grotesque", "Avenir Next", "Helvetica Neue", sans-serif;
  --font-body: "Literata", Georgia, "Times New Roman", serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1.0625rem;
  --text-lg: 1.3125rem;
  --text-xl: clamp(1.75rem, 1.25rem + 2vw, 2.5rem);
  --text-name: clamp(2rem, 1.45rem + 2.6vw, 3.375rem);
  --text-hero: clamp(2.625rem, 1.6rem + 4.6vw, 4.75rem);

  /* space — 4pt scale */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --section-gap: clamp(72px, 6vw + 40px, 128px);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-size-adjust: none;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

::selection { background: oklch(88% 0.06 250); }

.wrap {
  max-width: 70rem;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: var(--space-sm) var(--space-md);
  z-index: 10;
}
.skip-link:focus { left: 0; }

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

/* ───── header ───── */
.site-head {
  padding-block: var(--space-lg);
}

.site-head .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-lg);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand svg { translate: 0 3px; }

.brand-name {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.1875rem;
  letter-spacing: -0.015em;
}

.site-nav {
  display: flex;
  gap: clamp(var(--space-md), 3vw, var(--space-xl));
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
}

.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding-block: var(--space-xs);
  transition: color 0.15s ease;
}

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

.site-nav a.nav-hello { color: var(--sky); }
.site-nav a.nav-hello:hover { color: var(--sky-deep); }

/* ───── hero ───── */
.hero {
  position: relative;
  padding-block: clamp(56px, 9vw, 128px) var(--section-gap);
  overflow: clip;
}

.hero-sky {
  position: absolute;
  inset: 0;
  pointer-events: none;
  color: var(--line);
}

.hero-sky svg { position: absolute; }
.hero-sky .cloud-a { top: 8%; right: 4%; width: clamp(120px, 16vw, 220px); }
.hero-sky .cloud-b { top: 44%; right: 22%; width: clamp(70px, 9vw, 130px); opacity: 0.7; }
.hero-sky .cloud-c { top: 16%; right: 34%; width: clamp(48px, 6vw, 88px); opacity: 0.5; }

.eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: var(--space-lg);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 13ch;
  margin-left: -0.05em; /* optical alignment of the B */
  margin-bottom: var(--space-xl);
  text-wrap: balance;
}

.hero .lead {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 52ch;
}

.hero .lead em {
  font-style: italic;
  color: var(--ink);
}

.hero-down {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-2xl);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--sky);
  text-decoration: none;
}

.hero-down svg { transition: translate 0.25s var(--ease-out); }
.hero-down:hover svg { translate: 0 3px; }
.hero-down:hover { color: var(--sky-deep); }

/* hero entrance */
@media (prefers-reduced-motion: no-preference) {
  .hero .eyebrow, .hero h1, .hero .lead, .hero .hero-down {
    opacity: 0;
    translate: 0 18px;
    animation: rise 0.9s var(--ease-out) forwards;
  }
  .hero h1 { animation-delay: 0.08s; }
  .hero .lead { animation-delay: 0.18s; }
  .hero .hero-down { animation-delay: 0.3s; }

  @keyframes rise {
    to { opacity: 1; translate: 0 0; }
  }

  .hero-sky svg {
    animation: drift 46s linear infinite alternate;
  }
  .hero-sky .cloud-b { animation-duration: 34s; animation-delay: -12s; }
  .hero-sky .cloud-c { animation-duration: 26s; animation-delay: -6s; }

  @keyframes drift {
    from { transform: translateX(0); }
    to { transform: translateX(-56px); }
  }
}

/* ───── section scaffolding ───── */
.section { padding-bottom: var(--section-gap); }

.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: clamp(var(--space-xl), 4vw, var(--space-2xl));
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.section-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  translate: 0 -4px;
}

/* ───── products ───── */
.product {
  display: grid;
  grid-template-columns: minmax(150px, 200px) 1fr;
  gap: var(--space-lg) clamp(var(--space-xl), 5vw, var(--space-4xl));
  padding-block: clamp(var(--space-xl), 4vw, var(--space-2xl));
  border-top: 1px solid var(--line-soft);
}

.product:first-of-type { border-top: 0; padding-top: 0; }
.product:last-of-type { padding-bottom: 0; }

.product-index {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  font-family: var(--font-display);
}

.product-num {
  font-size: var(--text-sm);
  font-weight: 650;
  color: var(--tint, var(--sky));
  font-variant-numeric: tabular-nums;
}

.product-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.product-name {
  font-family: var(--font-display);
  font-size: var(--text-name);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-left: -0.04em;
}

.product-tagline {
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--tint, var(--sky));
  margin-top: var(--space-2xs);
}

.product-desc {
  margin-top: var(--space-md);
  max-width: 58ch;
  color: var(--ink-soft);
}

.product-points {
  margin-top: var(--space-md);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink-faint);
  max-width: 58ch;
}

.product-points span { white-space: nowrap; }

.product-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-lg);
  margin-top: var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
}

.product-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--tint, var(--sky));
  text-decoration: none;
  padding-block: var(--space-2xs);
}

.product-links a svg { transition: translate 0.25s var(--ease-out); }
.product-links a:hover svg { translate: 3px 0; }
.product-links a:hover { text-decoration: underline; text-underline-offset: 4px; }

.product-links .quiet { color: var(--ink-faint); }

/* scroll reveal */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    translate: 0 24px;
    transition: opacity 0.8s var(--ease-out), translate 0.8s var(--ease-out);
  }
  .reveal.is-in { opacity: 1; translate: 0 0; }
}

/* ───── about / contact ───── */
.about-grid {
  display: grid;
  grid-template-columns: minmax(150px, 200px) 1fr;
  gap: var(--space-lg) clamp(var(--space-xl), 5vw, var(--space-4xl));
}

.about-cloud { color: var(--line); }
.about-cloud svg { width: 96px; }

.about-body { max-width: 58ch; }

.about-body p + p { margin-top: var(--space-md); }
.about-body .contact-line { margin-top: var(--space-lg); }

.about-body a {
  color: var(--sky);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
.about-body a:hover { color: var(--sky-deep); }

/* ───── footer ───── */
.site-foot {
  border-top: 1px solid var(--line);
  padding-block: var(--space-lg) var(--space-2xl);
  background: var(--paper-deep);
}

.site-foot .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md) var(--space-xl);
}

.foot-legal {
  font-size: var(--text-sm);
  color: var(--ink-faint);
}

.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-lg);
  list-style: none;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
}

.foot-links a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-block: var(--space-xs);
}
.foot-links a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }

/* ───── prose pages (privacy, support) ───── */
.page {
  padding-block: clamp(40px, 6vw, 80px) var(--section-gap);
}

.page-head { margin-bottom: clamp(var(--space-xl), 5vw, var(--space-3xl)); }

.page-head h1 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-left: -0.04em;
}

.page-head .page-note {
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--ink-faint);
}

.prose { max-width: 65ch; }

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-md);
}

.prose h2:first-child { margin-top: 0; }

.prose h2 .tick { color: var(--tint, var(--sky)); }

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xs);
}

.prose p { margin-bottom: var(--space-md); color: var(--ink-soft); }
.prose li { margin-bottom: var(--space-xs); color: var(--ink-soft); }
.prose ul { padding-left: 1.2em; margin-bottom: var(--space-md); }

.prose a {
  color: var(--sky);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
.prose a:hover { color: var(--sky-deep); }

.prose .rule {
  border: 0;
  height: 1px;
  background: var(--line);
  margin-block: var(--space-2xl);
}

/* ───── responsive ───── */
@media (max-width: 720px) {
  .site-head .wrap { flex-wrap: wrap; gap: var(--space-sm) var(--space-lg); }

  .hero-sky .cloud-b,
  .hero-sky .cloud-c { display: none; }
  .hero-sky .cloud-a { top: 2%; right: -4%; opacity: 0.6; }

  .product,
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .product-index {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-md);
  }

  .product-meta {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-2xs) var(--space-md);
  }

  .about-cloud svg { width: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}