/* Kass marketing site.
   Palette: page #F2F4F3, ink #16211C, accent #1E5C46, card #FFFFFF,
   server-pane #16211C with muted mono. */

:root {
  --page: #f2f4f3;
  --ink: #16211c;
  --ink-soft: #45524b;
  --accent: #1e5c46;
  --accent-deep: #174936;
  --card: #ffffff;
  --rule: #d8ded9;
  --server-bg: #16211c;
  --server-text: #7d8f85;
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", system-ui, sans-serif;
  --mono: "Spline Sans Mono", ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--body);
  background: var(--page);
  color: var(--ink);
  line-height: 1.6;
  font-size: 1.0625rem;
}

.shell {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

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

h1, h2, h3 {
  font-family: var(--display);
  line-height: 1.08;
  text-wrap: balance;
}

/* Header */

.site-header {
  padding: 1.1rem 0;
}
.site-header .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wordmark {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.55rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.button {
  display: inline-block;
  font-family: var(--body);
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.55rem 1.35rem;
}
.button--signin {
  color: var(--ink);
  border: 2px solid var(--ink);
  background: transparent;
}
.button--signin:hover { background: var(--ink); color: var(--page); }
.button--primary {
  color: #fff;
  background: var(--accent);
  border: 2px solid var(--accent);
  padding: 0.8rem 2rem;
  font-size: 1.1rem;
}
.button--primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

/* Hero */

.hero { padding: 4.5rem 0 5rem; }
.hero h1 {
  font-size: clamp(2.4rem, 6.5vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  max-width: 20ch;
}
.hero-lede {
  margin-top: 1.4rem;
  max-width: 34rem;
  font-size: 1.2rem;
  color: var(--ink-soft);
}

/* Signature: the seal demo */

.seal-demo {
  margin-top: 3.2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}
@media (max-width: 44rem) {
  .seal-demo { grid-template-columns: 1fr; }
  .session-card { padding: 1.1rem 1.1rem 1rem; }
  .session-table, .session-next { font-size: 0.95rem; }
  .ciphertext { font-size: 0.85rem; }
}

.pane figcaption {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin-bottom: 0.7rem;
  color: var(--ink-soft);
}

.session-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 1.35rem 1.5rem 1.15rem;
  box-shadow: 0 2px 10px rgba(22, 33, 28, 0.06);
  height: 100%;
}
.session-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.session-next {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.05rem;
}
.session-start {
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border-radius: 8px;
  padding: 0.25rem 1.1rem;
}
.session-table {
  width: 100%;
  border-collapse: collapse;
}
.session-table tr { border-bottom: 1px solid #eef1ef; }
.session-table th {
  text-align: left;
  font-weight: 700;
  padding: 0.5rem 0;
}
.session-table td {
  text-align: right;
  padding: 0.5rem 0 0.5rem 0.8rem;
  color: var(--ink-soft);
  white-space: nowrap;
}
.session-table .load {
  font-family: var(--mono);
  font-weight: 600;
  color: var(--ink);
}
.session-note {
  margin-top: 0.9rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.pane--server { display: flex; flex-direction: column; }
.ciphertext {
  flex: 1;
  background: var(--server-bg);
  color: var(--server-text);
  border-radius: 14px;
  padding: 1.35rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  line-height: 1.75;
  letter-spacing: 0.04em;
  overflow-x: auto;
  white-space: pre;
}
.pane-note {
  margin-top: 0.7rem;
  margin-bottom: 0 !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  font-family: var(--body) !important;
  font-weight: 400 !important;
  font-size: 0.88rem !important;
}

/* Sections */

section { padding: 3.6rem 0; }
.hero { padding-top: 4.5rem; }

h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.section-lede {
  max-width: 36rem;
  color: var(--ink-soft);
  font-size: 1.1rem;
  margin-bottom: 2.2rem;
}

.virtues { background: #e9edea; }
.virtue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.4rem;
}
.virtue {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 1.5rem;
}
.virtue h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.virtue p { color: var(--ink-soft); font-size: 0.98rem; }

.coaches p {
  max-width: 38rem;
  color: var(--ink-soft);
  font-size: 1.1rem;
}
.coaches p + p { margin-top: 1rem; }

.privacy-list div { max-width: 38rem; padding: 1.1rem 0; border-top: 1px solid var(--rule); }
.privacy-list div:last-child { border-bottom: 1px solid var(--rule); }
.privacy-list dt {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 0.3rem;
}
.privacy-list dd { color: var(--ink-soft); }

.cta {
  text-align: left;
  padding-bottom: 5rem;
}
.cta p {
  max-width: 36rem;
  color: var(--ink-soft);
  font-size: 1.1rem;
  margin-bottom: 1.8rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 2rem 0 2.6rem;
  color: var(--ink-soft);
}
.site-footer .fine {
  margin-top: 0.4rem;
  font-size: 0.85rem;
}