/* Time & Space — site styles */

:root {
  --bg: #faf8f4;
  --bg-elev: #f3efe7;
  --ink: #1a1816;
  --ink-soft: #4d4a45;
  --ink-faded: #807b73;
  --accent: #2f6f53;
  --accent-soft: #d8e7df;
  --line: #e6e1d6;
  --warn: #b96a2c;
  --serif: ui-serif, "Iowan Old Style", "Charter", "Source Serif Pro", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --max: 64rem;
  --gutter: clamp(1.25rem, 4vw, 2.25rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11130f;
    --bg-elev: #181c17;
    --ink: #ece9e1;
    --ink-soft: #b8b3a8;
    --ink-faded: #807b73;
    --accent: #6fb892;
    --accent-soft: #1b3327;
    --line: #232722;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease;
}
a:hover { border-bottom-color: var(--accent); }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 .6em;
  color: var(--ink);
}

h1 { font-size: clamp(2.5rem, 5.5vw, 4.25rem); line-height: 1.05; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); line-height: 1.15; }
h3 { font-size: 1.25rem; line-height: 1.3; }

p { margin: 0 0 1em; color: var(--ink-soft); max-width: 36rem; }

/* Layout */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section {
  padding: clamp(3rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--line);
}

section:first-of-type { border-top: 0; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  border: 0;
}

.brand-mark {
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: .5rem;
  vertical-align: -2px;
  border-radius: 50%;
  background: var(--accent);
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--bg);
  border-radius: 50%;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  font-size: .95rem;
}
.nav-links a { color: var(--ink-soft); border-bottom: 0; }
.nav-links a:hover { color: var(--ink); }

@media (max-width: 640px) {
  .nav-links { display: none; }
}

/* Hero */
.hero {
  padding: clamp(4rem, 10vw, 7rem) 0 clamp(3rem, 8vw, 5rem);
  border-top: 0;
}
.hero h1 { max-width: 18ch; }
.hero .lede {
  font-size: clamp(1.125rem, 1.75vw, 1.375rem);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 42ch;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.25rem;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .15s ease;
  text-decoration: none;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-secondary:hover { border-color: var(--ink-soft); }

/* Feature grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.5rem;
}
.card h3 { margin-top: 0; }
.card p { margin-bottom: 0; }
.card-mark {
  display: inline-flex;
  width: 32px; height: 32px;
  align-items: center; justify-content: center;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: .75rem;
  font-family: var(--serif);
  font-weight: 600;
}

/* Privacy band */
.band {
  background: var(--bg-elev);
  border-radius: 18px;
  padding: clamp(1.75rem, 4vw, 2.5rem);
  border: 1px solid var(--line);
  margin: 1rem 0;
}
.band h2 { margin-top: 0; }
.band-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.band-list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--ink-soft);
  font-size: .98rem;
  line-height: 1.5;
}
.band-list li::before {
  content: "";
  position: absolute;
  left: 0; top: .55em;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
}
.band-list li b { color: var(--ink); font-weight: 600; }

/* Sharing demo */
.audience-row {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1rem;
  padding: .9rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.audience-row:last-child { border-bottom: 0; }
.audience-name {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--ink);
}
.audience-detail { color: var(--ink-soft); font-size: .95rem; }
.tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: .75rem;
  font-family: var(--mono);
  background: var(--accent-soft);
  color: var(--accent);
  margin-right: .35rem;
}
.tag.muted { background: transparent; color: var(--ink-faded); border: 1px solid var(--line); }

/* CTA */
.cta {
  text-align: center;
  padding: clamp(3rem, 8vw, 6rem) var(--gutter);
}
.cta h2 { margin-bottom: .5rem; }
.cta p { margin: 0 auto 2rem; }

.signup {
  display: flex;
  gap: .5rem;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 28rem;
  margin: 0 auto;
}
.signup input[type=email] {
  flex: 1;
  min-width: 14rem;
  padding: .75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink);
  font-size: .95rem;
  font-family: var(--sans);
}
.signup input[type=email]:focus {
  outline: none;
  border-color: var(--accent);
}
.signup-status { margin-top: 1rem; min-height: 1.4em; font-size: .9rem; color: var(--ink-faded); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
  font-size: .9rem;
  color: var(--ink-faded);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-links a {
  color: var(--ink-faded);
  margin-left: 1.25rem;
  border-bottom: 0;
}
.footer-links a:hover { color: var(--ink); }
@media (max-width: 540px) {
  .footer-links a:first-child { margin-left: 0; }
}

/* Long-form pages (privacy/terms/faq) */
.prose { max-width: 42rem; margin: 0 auto; padding: 2rem 0 4rem; }
.prose h1 { font-size: 2.25rem; }
.prose h2 { font-size: 1.5rem; margin-top: 2.5rem; }
.prose ul { padding-left: 1.25rem; color: var(--ink-soft); }
.prose li { margin-bottom: .35rem; }
.prose code {
  font-family: var(--mono);
  font-size: .9em;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--bg-elev);
}

.kicker {
  display: inline-block;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}