:root {
  --sky-0: #f0f9ff;
  --sky-1: #e0f2fe;
  --sky-2: #bae6fd;
  --sky-3: #7dd3fc;
  --sky-4: #38bdf8;
  --glass: rgba(255, 255, 255, 0.28);
  --glass-border: rgba(255, 255, 255, 0.55);
  --ink: #0c4a6e;
  --ink-soft: #075985;
  --ink-muted: #0369a1;
  --page-max: 42rem;
}

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

html {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.85), transparent 42%),
    radial-gradient(circle at 82% 78%, rgba(147, 197, 253, 0.55), transparent 48%),
    linear-gradient(160deg, var(--sky-0) 0%, var(--sky-1) 42%, var(--sky-2) 100%);
  background-attachment: fixed;
}

a {
  color: var(--ink-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

.site-footer,
.site-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

.site-nav a,
.site-footer a {
  color: var(--ink-muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-footer a:hover,
.site-nav a[aria-current="page"],
.site-footer a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
}

/* —— Home —— */

.home {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
}

.home-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem 1rem;
  overflow: hidden;
}

.glass-field {
  position: absolute;
  inset: 1.25rem;
  border-radius: 2rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.75),
    0 12px 40px rgba(14, 165, 233, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.home-copy {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: min(92vw, 48rem);
}

.brand {
  margin: 0;
  font-family: "Bagel Fat One", cursive, sans-serif;
  font-weight: 400;
  font-size: clamp(3.4rem, 12vw, 6.2rem);
  letter-spacing: 0.04em;
  line-height: 1;
  transform: scaleX(1.22) scaleY(1.04);
  transform-origin: center;
  background: linear-gradient(
    160deg,
    #ffffff 0%,
    #f0f9ff 22%,
    #bae6fd 48%,
    #7dd3fc 72%,
    rgba(255, 255, 255, 0.94) 100%
  );
  background-size: 200% 200%;
  animation: glass-sheen 7s ease-in-out infinite;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter:
    drop-shadow(0 1px 0 rgba(255, 255, 255, 0.95))
    drop-shadow(0 8px 18px rgba(125, 211, 252, 0.35))
    drop-shadow(0 18px 36px rgba(56, 189, 248, 0.2));
}

.tagline {
  margin: 1.35rem 0 0;
  font-family: "Bagel Fat One", cursive, sans-serif;
  font-size: clamp(1.35rem, 4.2vw, 2rem);
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.92);
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.55),
    0 6px 18px rgba(14, 165, 233, 0.28);
}

.home .site-footer {
  padding: 0 1.25rem 1.75rem;
  position: relative;
  z-index: 1;
}

@keyframes glass-sheen {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* —— Document pages —— */

.doc {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.doc-header {
  padding: 1.25rem 1.25rem 0;
}

.doc-header .inner,
.doc-main,
.doc-footer .inner {
  width: min(100% - 2.5rem, var(--page-max));
  margin-inline: auto;
}

.doc-header .brand-link {
  font-family: "Bagel Fat One", cursive, sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}

.doc-header .site-nav {
  justify-content: flex-start;
  margin-top: 0.85rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(125, 211, 252, 0.45);
}

.doc-main {
  padding: 2rem 0 3rem;
}

.doc-main h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.85rem, 4vw, 2.35rem);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.doc-main .meta {
  margin: 0 0 1.75rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.doc-main h2 {
  margin: 1.75rem 0 0.55rem;
  font-size: 1.15rem;
  color: var(--ink);
}

.doc-main p,
.doc-main li {
  line-height: 1.65;
  color: var(--ink-soft);
}

.doc-main ul {
  padding-left: 1.2rem;
}

.doc-main li + li {
  margin-top: 0.35rem;
}

.doc-footer {
  padding: 0 0 2rem;
}

.doc-footer .inner {
  padding-top: 1rem;
  border-top: 1px solid rgba(125, 211, 252, 0.45);
}

.doc-footer .site-footer {
  justify-content: flex-start;
}

.support-email {
  display: inline-block;
  margin-top: 0.35rem;
  font-size: 1.15rem;
  font-weight: 600;
}

@media (max-width: 480px) {
  .glass-field {
    inset: 0.75rem;
    border-radius: 1.35rem;
  }
}