/* ==========================================================================
   Moonrise Apps, LLC
   Design system: a night-sky almanac.
   Ground is the sky at zenith; the accent is moonlight — a cool periwinkle
   held just off silver, so it reads as light rather than as a UI highlight.
   Data is set in mono, prose in Plex Sans, display in Newsreader.
   ========================================================================== */

/* --- Tokens --------------------------------------------------------------- */

:root {
  /* Sky */
  --night-900: #080b14;
  --night-850: #0b1120;
  --night-800: #0e1524;
  --night-700: #131b2c;

  /* Rules */
  --rule: #1f2839;
  --rule-soft: #161e2d;

  /* Ink */
  --silver: #edf1f8;
  --slate: #a5b0c6;
  --slate-dim: #6e7a93;

  /* Moonlight */
  --glow: #a5b2ff;
  --glow-soft: #cbd3ff;
  --glow-ink: #0a0f20;
  --glow-rgb: 165, 178, 255; /* for rgba() tints of the accent */

  /* Type */
  --display: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;

  /* Measure */
  --maxw: 68rem;
  --pad: clamp(1.25rem, 4vw, 2.5rem);

  color-scheme: dark;
}

/* --- Reset ---------------------------------------------------------------- */

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

* { margin: 0; }

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

body {
  background: var(--night-900);
  color: var(--slate);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: clip; /* Backstop for the full-bleed horizon rule. */
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

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

::selection {
  background: rgba(var(--glow-rgb), 0.25);
  color: var(--silver);
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -4rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  background: var(--glow);
  color: var(--glow-ink);
  font: 500 0.875rem/1 var(--sans);
  border-radius: 8px;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus { top: 0.75rem; }

.wrap {
  width: min(100% - (var(--pad) * 2), var(--maxw));
  margin-inline: auto;
}

/* Anchor targets stop clear of the sticky masthead. */
#main,
main [id] {
  scroll-margin-top: 5.5rem;
}

/* --- Typography ----------------------------------------------------------- */

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 400;
  color: var(--silver);
  letter-spacing: -0.02em;
  line-height: 1.08;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font: 500 0.7rem/1 var(--mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate-dim);
}

.eyebrow::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--glow);
  flex: none;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-variation-settings: "opsz" 40;
  margin-top: 1rem;
  max-width: 22ch;
}

.lead {
  font-size: clamp(1.0625rem, 1.6vw, 1.1875rem);
  line-height: 1.65;
  max-width: 56ch;
}

/* --- Masthead ------------------------------------------------------------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.masthead.is-scrolled {
  background: rgba(8, 11, 20, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--rule-soft);
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(0.75rem, 3vw, 1.5rem);
  padding-block: 1.15rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  font: 500 0.8125rem/1 var(--mono);
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--silver);
  white-space: nowrap;
}

.wordmark .llc {
  color: var(--slate-dim);
  margin-left: 0.15rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  font: 400 0.875rem/1 var(--sans);
}

.site-nav a {
  text-decoration: none;
  color: var(--slate);
  transition: color 0.2s ease;
}

.site-nav a:hover { color: var(--silver); }

/* The page you are already on. */
.site-nav a[aria-current="page"] { color: var(--silver); }

.site-nav .nav-cta {
  color: var(--glow);
  border: 1px solid rgba(var(--glow-rgb), 0.32);
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
}

.site-nav .nav-cta:hover {
  color: var(--glow-ink);
  background: var(--glow);
  border-color: var(--glow);
}

@media (max-width: 47.9375rem) {
  .site-nav .nav-hide { display: none; }
}

/* The wordmark is the widest fixed element on the page. Below this width it
   has to give ground, or it pushes the document past the viewport. */
@media (max-width: 26rem) {
  .wordmark {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    gap: 0.55rem;
  }

  .wordmark .llc { display: none; }
}

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

.hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(3.5rem, 9vw, 7rem) clamp(2rem, 4vw, 3rem);
  overflow: hidden;
}

/* Moonlight spilling up from below the fold. */
.hero::before {
  content: "";
  position: absolute;
  inset: auto -10% -6% -10%;
  height: 62%;
  background: radial-gradient(
    58% 100% at 50% 100%,
    rgba(var(--glow-rgb), 0.14),
    rgba(var(--glow-rgb), 0.045) 42%,
    transparent 72%
  );
  z-index: -1;
  pointer-events: none;
}

.hero-title {
  font-size: clamp(2.75rem, 8vw, 5.25rem);
  font-variation-settings: "opsz" 60;
  letter-spacing: -0.028em;
  line-height: 1.02;
  margin-top: 1.5rem;
  max-width: 24ch;
}

/* Each sentence holds its own line, so the parallel stays visible. */
.hero-title span { display: block; }

.hero-title em {
  font-style: italic;
  color: var(--glow-soft);
}

.hero .lead { margin-top: 1.75rem; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: 500 0.9375rem/1 var(--sans);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: var(--glow);
  color: var(--glow-ink);
}

.btn-primary:hover { background: var(--glow-soft); }
.btn-primary:focus-visible { outline-color: var(--silver); }

.btn-ghost {
  border-color: var(--rule);
  color: var(--silver);
}

.btn-ghost:hover {
  border-color: var(--slate-dim);
  background: rgba(255, 255, 255, 0.035);
}

.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateY(2px); }

/* --- The horizon: tonight's lunar readout --------------------------------- */

.horizon {
  position: relative;
  margin-top: clamp(2.75rem, 6vw, 4.5rem);
  padding-top: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

/* The horizon runs the full width of the sky, not just the text column. */
.horizon::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 100vw;
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(
    90deg,
    transparent,
    var(--rule) 10%,
    var(--rule) 90%,
    transparent
  );
}

.almanac {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.9rem;
  font: 500 0.75rem/1.5 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate-dim);
}

.almanac b {
  font-weight: 500;
  color: var(--slate);
}

.almanac .sep {
  color: #2b3549;
  user-select: none;
}

/* --- Moon glyph ----------------------------------------------------------- */

.moon { flex: none; overflow: visible; }

/* The unlit disc carries a rim light so the moon still reads as a sphere
   near new moon, when almost none of it is illuminated. */
.moon .disc {
  fill: #151d2e;
  stroke: rgba(var(--glow-rgb), 0.4);
  stroke-width: 0.7;
}

.moon .lit { fill: var(--glow); }

.moon--silver .disc { stroke: rgba(237, 241, 248, 0.22); }
.moon--silver .lit { fill: var(--silver); }

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

.section { padding-block: clamp(2.5rem, 4.5vw, 3.5rem); }

.section > .wrap {
  border-top: 1px solid var(--rule-soft);
  padding-top: clamp(2rem, 4vw, 3rem);
}

.section-intro {
  margin-top: 1.25rem;
  max-width: 58ch;
}

/* --- Practice index ------------------------------------------------------- */

.index {
  list-style: none;
  padding: 0;
  margin-top: clamp(2rem, 4vw, 2.75rem);
}

.index-row {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: 0.5rem 2.5rem;
  padding-block: clamp(1.5rem, 3vw, 2.1rem);
  border-top: 1px solid var(--rule-soft);
}

.index-row:last-child { border-bottom: 1px solid var(--rule-soft); }

.index-term {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--silver);
  line-height: 1.6;
}

.index-def {
  color: var(--slate);
  max-width: 52ch;
}

@media (max-width: 47.9375rem) {
  .index-row { grid-template-columns: 1fr; }
}

/* --- Catalogue ------------------------------------------------------------ */

.releases {
  list-style: none;
  padding: 0;
  margin-top: clamp(2rem, 4vw, 2.75rem);
  display: grid;
  gap: 1rem;
}

.release {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: clamp(1.35rem, 3vw, 1.85rem);
  background: linear-gradient(180deg, var(--night-800), var(--night-850));
  border: 1px solid var(--rule-soft);
  border-radius: 14px;
}

.release-name {
  font: 500 1.0625rem/1.4 var(--sans);
  color: var(--silver);
}

.release-meta {
  margin-top: 0.2rem;
  font: 400 0.75rem/1.5 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate-dim);
}

.release-status { color: var(--glow); }

.key {
  list-style: none;
  padding: 0;
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.75rem;
  align-items: center;
}

.key-note {
  font: 400 0.75rem/1.5 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate-dim);
  margin-right: 0.25rem;
}

.key li {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font: 400 0.75rem/1.5 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate);
}

/* --- Closing: contact ----------------------------------------------------- */

.contact-address {
  margin-top: 1.25rem;
  font-style: normal;
  color: var(--slate);
}

.mail-link {
  display: inline-block;
  margin-top: 1.75rem;
  font-family: var(--display);
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-variation-settings: "opsz" 32;
  color: var(--glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--glow-rgb), 0.35);
  padding-bottom: 0.15rem;
  transition: color 0.2s ease, border-color 0.2s ease;
  overflow-wrap: anywhere;
}

.mail-link:hover {
  color: var(--glow-soft);
  border-bottom-color: var(--glow-soft);
}

.fineprint {
  margin-top: 1.5rem;
  font-size: 0.9375rem;
  color: var(--slate-dim);
  max-width: 44ch;
}

.fineprint a {
  color: var(--slate);
  text-decoration-color: var(--slate-dim);
  text-underline-offset: 3px;
}

.fineprint a:hover { color: var(--silver); }

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

.foot {
  border-top: 1px solid var(--rule-soft);
  padding-block: 2.5rem 3rem;
}

.foot-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem 2rem;
}

.foot-legal,
.foot-links {
  font: 400 0.75rem/1.7 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-dim);
}

.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.foot-links a {
  text-decoration: none;
  transition: color 0.2s ease;
}

.foot-links a:hover { color: var(--silver); }

/* --- Interior pages ------------------------------------------------------- */

.page-head {
  padding-block: clamp(3.5rem, 8vw, 5.5rem) clamp(1.75rem, 4vw, 2.75rem);
}

.page-title {
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-variation-settings: "opsz" 48;
  margin-top: 1.25rem;
}

.page-meta {
  margin-top: 1.5rem;
  font: 400 0.75rem/1.6 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate-dim);
}

.prose {
  padding-bottom: clamp(4rem, 8vw, 6rem);
  max-width: 40rem;
}

.prose > * + * { margin-top: 1.15rem; }

.prose h2 {
  font-size: clamp(1.3rem, 2.6vw, 1.6rem);
  font-variation-settings: "opsz" 24;
  margin-top: clamp(2.75rem, 5vw, 3.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule-soft);
}

.prose h3 {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--silver);
  margin-top: 2rem;
}

.prose a {
  color: var(--glow);
  text-decoration-color: rgba(var(--glow-rgb), 0.4);
  text-underline-offset: 3px;
}

.prose a:hover { color: var(--glow-soft); }

.prose ul {
  padding-left: 1.15rem;
  display: grid;
  gap: 0.6rem;
}

.prose li::marker { color: var(--slate-dim); }

.prose strong { color: var(--silver); font-weight: 500; }

.callout {
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--rule-soft);
  border-left: 2px solid var(--glow);
  border-radius: 0 10px 10px 0;
  background: var(--night-850);
  font-size: 0.9375rem;
  color: var(--slate);
}

/* --- Motion --------------------------------------------------------------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.75s ease var(--delay, 0ms),
    transform 0.75s cubic-bezier(0.2, 0.7, 0.2, 1) var(--delay, 0ms);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .js [data-reveal].is-in { transition: none; }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}