:root {
  --bg: #f5f5f3;
  --ink: #111;
  --muted: #444;
  --hairline: rgba(0, 0, 0, 0.08);
  --max: 1280px;
  --space: 28px;
}

/* base */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter,
    Roboto, Arial, "Noto Sans";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a {
  color: inherit;
  text-decoration: none;
}
a:focus-visible {
  outline: 2px solid rgba(0, 0, 0, 0.6);
  outline-offset: 3px;
}

/* top chrome */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px var(--space);
  background: var(--bg);
}
.brand {
  font-weight: 800;
  letter-spacing: 0.06em;
  font-size: 14px;
}
.brand:hover {
  opacity: 0.65;
}
.hairline {
  height: 1px;
  background: var(--hairline);
}

/* tabs */
.page-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 14px 0;
}
.page-tabs a {
  font-size: 14px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 9999px;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}
.page-tabs a:hover {
  background: rgba(0, 0, 0, 0.06);
}
.page-tabs a.current,
.page-tabs a[aria-current="page"] {
  background: #111;
  color: var(--bg);
}

/* layout */
.site-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px var(--space);
}

/* hero */
.hero-title {
  font-weight: 901;
  letter-spacing: -0.02em;
  line-height: 0.85;
  margin: 18px 0 18px;
  font-size: clamp(64px, 12vw, 192px);
  text-align: center;
}
.hero-grid {
  display: contents;
} /* neutralize old grid if present */
.hero-media {
  display: none;
} /* hide placeholder box */
.hero-copy {
  color: var(--muted);
}
.hero-copy h2 {
  margin: 0 0 8px;
  font-weight: 800;
  font-size: 22px;
  color: var(--ink);
  text-align: center;
}
.hero-copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  text-align: center;
}
.hero-copy.narrow {
  max-width: 760px;
  margin: 0 auto;
  padding-top: 24px;
}

/* legacy nav (kept if .site-nav appears in older pages) */
.site-nav a {
  margin-left: var(--space);
  font-size: 14px;
  font-weight: 500;
}
.site-nav a:hover {
  opacity: 0.65;
}

/* responsive */
@media (max-width: 900px) {
  .site-main {
    padding: 28px 18px;
  }
  .site-nav a {
    margin-left: 18px;
  }
}

/* motion reduction */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

.btn-primary {
  border: 0;
  padding: 10px 16px;
  border-radius: 9999px;
  font-weight: 700;
  background: #111;
  color: var(--bg);
  cursor: pointer;
}
.btn-primary:hover {
  opacity: 0.9;
}

.banner {
  background: #fff6d1;
  color: #6a4d00;
  border: 1px solid #ffe089;
  padding: 10px 12px;
  border-radius: 10px;
  margin: 0 0 12px;
  text-align: center;
}

.auth-form {
  display: grid;
  gap: 8px;
  max-width: 360px;
  margin: 0 auto;
  text-align: left;
}
.auth-form input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #ddd;
  background: #fff;
  color: #111;
}
/* CTA variant */
.btn-cta {
  background: #0d9488;
  color: var(--bg);
  padding: 14px 22px;
  font-size: 18px;
}
.btn-cta:hover {
  filter: brightness(0.95);
}
.banner.success {
  background: #d1fae5;
  color: #065f46;
  border-color: #a7f3d0;
}
#signup-failsafe {
  margin-top: 12px;
}