/* LSFR Studio — shared styles.
   One stylesheet, no build step, no JavaScript. The palette mirrors Keepr
   itself: a soft pink wash in light mode, neutral grey in dark, because the
   wash would fight text contrast there. */

:root {
  color-scheme: light dark;

  --pink: #fac3d9;
  --pink-mid: #fcdcea;
  --pink-deep: #e87aa8;
  --accent: #c9447c;

  --bg: #fdfbfc;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --border: rgba(0, 0, 0, 0.09);
  --text: #171315;
  --text-secondary: rgba(23, 19, 21, 0.66);
  --text-tertiary: rgba(23, 19, 21, 0.5);

  --radius: 14px;
  --radius-lg: 20px;
  --measure: 68ch;
  --page: 1080px;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131114;
    --surface: rgba(255, 255, 255, 0.045);
    --surface-solid: #1c191d;
    --border: rgba(255, 255, 255, 0.11);
    --text: #f4f1f3;
    --text-secondary: rgba(244, 241, 243, 0.66);
    --text-tertiary: rgba(244, 241, 243, 0.5);
    --accent: #f7a8c8;
  }
}

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

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* The wash: a vertical pink ramp that fades out well before the content, so
   the reading area keeps full contrast. Light mode only. */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: 60vh;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(120% 80% at 15% 0%, rgba(255, 255, 255, 0.55), transparent 60%),
    radial-gradient(100% 90% at 85% 10%, rgba(232, 122, 168, 0.22), transparent 65%),
    linear-gradient(180deg, var(--pink) 0%, var(--pink-mid) 38%, transparent 100%);
}

@media (prefers-color-scheme: dark) {
  body::before {
    background: linear-gradient(180deg, rgba(250, 195, 217, 0.09) 0%, transparent 100%);
  }
}

/* ---------- Skip link ---------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.7rem 1.1rem;
  background: var(--surface-solid);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius) 0;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Layout ---------- */

.wrap {
  width: 100%;
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 clamp(1.15rem, 4vw, 2rem);
}

main {
  display: block;
  padding-bottom: 4rem;
}

/* ---------- Header ---------- */

.site-header {
  padding: 1.6rem 0 0.5rem;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--text);
}

.wordmark span {
  font-weight: 400;
  color: var(--text-tertiary);
  font-size: 0.86rem;
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--surface);
  color: var(--text);
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
  background: var(--surface);
}

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

.hero {
  padding: clamp(2.5rem, 8vw, 5rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.1rem, 6.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.032em;
  font-weight: 700;
  max-width: 22ch;
}

.hero p.lede {
  margin: 0;
  font-size: clamp(1.05rem, 2.4vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 56ch;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.28rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* ---------- Product lockup ---------- */

.lockup {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 1.75rem);
  margin-bottom: 1.5rem;
}

.lockup img {
  width: clamp(64px, 14vw, 104px);
  height: auto;
  border-radius: 22%;
  flex: none;
}

.lockup h1 {
  margin: 0;
}

/* ---------- Buttons ---------- */

.actions {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.62rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.12s ease, opacity 0.15s ease, background-color 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

@media (prefers-color-scheme: dark) {
  .btn-primary {
    color: #2a0f1c;
  }
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--text-tertiary);
}

/* ---------- Cards ---------- */

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 1.35rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
}

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  letter-spacing: -0.012em;
}

.card p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--text-secondary);
}

a.card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

a.card:hover,
a.card:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-kicker {
  display: block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

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

.section {
  padding: clamp(2rem, 6vw, 3.5rem) 0;
}

.section > h2 {
  margin: 0 0 1.4rem;
  font-size: clamp(1.35rem, 3.2vw, 1.7rem);
  letter-spacing: -0.022em;
}

/* ---------- Long-form documents ---------- */

.doc {
  max-width: var(--measure);
  padding: clamp(1.75rem, 5vw, 3rem) 0 1rem;
}

.doc h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.85rem, 5vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -0.028em;
}

.doc .meta {
  margin: 0 0 2.25rem;
  font-size: 0.88rem;
  color: var(--text-tertiary);
}

.doc h2 {
  margin: 2.6rem 0 0.75rem;
  font-size: 1.2rem;
  letter-spacing: -0.016em;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border);
}

.doc h3 {
  margin: 1.8rem 0 0.5rem;
  font-size: 1.02rem;
}

.doc p,
.doc li {
  color: var(--text-secondary);
}

.doc p {
  margin: 0 0 1rem;
}

.doc ul,
.doc ol {
  margin: 0 0 1.2rem;
  padding-left: 1.35rem;
}

.doc li {
  margin-bottom: 0.5rem;
}

.doc strong {
  color: var(--text);
  font-weight: 600;
}

.doc code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  padding: 0.12em 0.4em;
  border-radius: 5px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  word-break: break-word;
}

/* Key statement pulled out of the prose. */
.callout {
  margin: 0 0 2rem;
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
}

.callout p {
  margin: 0;
  color: var(--text);
  font-size: 0.97rem;
}

.callout p + p {
  margin-top: 0.6rem;
}

/* Table of contents on the legal pages. */
.toc {
  margin: 0 0 2.5rem;
  padding: 1.1rem 1.35rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.toc h2 {
  margin: 0 0 0.6rem;
  padding: 0;
  border: 0;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.92rem;
}

.toc li {
  margin-bottom: 0.2rem;
}

/* ---------- Definition-style rows ---------- */

.rows {
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.rows li {
  margin: 0;
  padding: 0.9rem 1.15rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: 0.93rem;
}

.rows li:last-child {
  border-bottom: 0;
}

.rows .label {
  display: block;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.15rem;
}

/* ---------- Links ---------- */

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  text-decoration-thickness: 2px;
}

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

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

.site-footer {
  margin-top: 2rem;
  padding: 2.25rem 0 3rem;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text-tertiary);
}

.site-footer .wrap {
  display: flex;
  gap: 1rem 1.5rem;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: baseline;
}

.site-footer nav {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.site-footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--text);
  text-decoration: underline;
}

.site-footer p {
  margin: 0;
}

/* ---------- Utilities ---------- */

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

.centered {
  text-align: center;
  padding: clamp(4rem, 14vh, 8rem) 0;
}