/* ============================================================
   Parahylon · beyond matter
   Refined-technical dark theme. Monochrome with hairline grid,
   serif display, grotesque body, monospace technical labels.
   ============================================================ */

:root {
  --bg:        #08090a;
  --bg-elev:   #0d0f11;
  --ink:       #e9eaec;
  --ink-dim:   #b9bcc1;
  --muted:     #7c818a;
  --faint:     #4a4f56;
  --line:      rgba(233, 234, 236, 0.09);
  --line-2:    rgba(233, 234, 236, 0.16);
  --glow:      rgba(150, 200, 215, 0.10);

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Hanken Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(16px, 1.05vw, 17px);
  line-height: 1.65;
  font-weight: 360;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Fixed grain + vignette overlay for atmosphere */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 80% -10%, var(--glow), transparent 60%),
    radial-gradient(100% 100% at 50% 120%, rgba(0,0,0,0.5), transparent 55%);
  mix-blend-mode: screen;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: var(--ink); color: var(--bg); }

a { color: inherit; text-decoration: none; }

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

/* --- Layout shell ------------------------------------------------------- */

.frame {
  position: relative;
  z-index: 3;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  border-inline: 1px solid var(--line);
}

.shell { position: relative; z-index: 3; }

/* --- Typographic primitives -------------------------------------------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow .idx { color: var(--faint); }
.eyebrow::before {
  content: "";
  width: 1.6em;
  height: 1px;
  background: var(--line-2);
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 340;
  font-optical-sizing: auto;
  letter-spacing: -0.018em;
  line-height: 1.04;
  margin: 0;
  color: var(--ink);
}

.display {
  font-size: clamp(3rem, 9.5vw, 7.5rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
}
.display em {
  font-style: italic;
  font-weight: 340;
  color: var(--ink-dim);
}

h2 { font-size: clamp(1.9rem, 4.2vw, 3.1rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); letter-spacing: -0.01em; }

p { margin: 0 0 1.1em; color: var(--ink-dim); }
.lede { font-size: clamp(1.15rem, 1.7vw, 1.4rem); color: var(--ink); line-height: 1.5; }

.measure { max-width: 60ch; }
.measure-sm { max-width: 46ch; }

/* --- Navigation --------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--ink);
}
.brand svg, .brand img { width: 18px; height: 21px; color: var(--ink); }
.brand b { font-weight: 500; }

.nav__links {
  display: flex;
  gap: clamp(1.2rem, 3vw, 2.6rem);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.nav__links a {
  color: var(--muted);
  position: relative;
  padding: 0.4em 0;
  transition: color 0.3s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav__links a:hover::after,
.nav__links a[aria-current="page"]::after { transform: scaleX(1); }
.nav__links a[aria-current="page"] { color: var(--ink); }

/* Keep the bar (mark, wordmark, and links) from overflowing on phones. */
@media (max-width: 600px) {
  .nav__inner { height: 60px; }
  .brand { font-size: 0.74rem; letter-spacing: 0.12em; gap: 0.5rem; }
  .brand svg, .brand img { width: 16px; height: 19px; }
  .nav__links { gap: 0.95rem; font-size: 0.64rem; letter-spacing: 0.06em; }
}
@media (max-width: 380px) {
  .brand { font-size: 0.7rem; letter-spacing: 0.04em; }
  .nav__links { gap: 0.7rem; font-size: 0.6rem; letter-spacing: 0.03em; }
}

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

.hero {
  position: relative;
  padding-block: clamp(5rem, 14vh, 10rem) clamp(4rem, 10vh, 7rem);
  overflow: clip;
}
.hero__watermark {
  position: absolute;
  top: 50%;
  right: -6%;
  transform: translateY(-50%);
  width: clamp(360px, 52vw, 760px);
  color: var(--ink);
  opacity: 0.05;
  pointer-events: none;
  filter: drop-shadow(0 0 60px var(--glow));
  animation: float 14s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(-50%); }
  50%      { transform: translateY(-54%); }
}
.hero__content { position: relative; max-width: 52ch; }
.hero .eyebrow { margin-bottom: 2rem; }
.hero .display { margin-bottom: 1.6rem; }
.hero__sub {
  max-width: 42ch;
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  color: var(--ink-dim);
}

/* --- Buttons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8em;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--ink);
  padding: 0.95em 1.6em;
  border: 1px solid var(--ink);
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease);
}
.btn:hover { background: transparent; color: var(--ink); transform: translateY(-2px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover { background: var(--ink); color: var(--bg); }
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* --- Sections & generic grid ------------------------------------------- */

.section {
  padding-block: clamp(4rem, 9vh, 7rem);
  border-top: 1px solid var(--line);
}
.section__head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section__head .eyebrow { margin-bottom: 1.4rem; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
@media (max-width: 760px) { .split { grid-template-columns: 1fr; gap: 2rem; } }

/* etymology block */
.etym { display: grid; gap: 1.6rem; }
.etym__row {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1.5rem;
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.etym__row:last-child { border-bottom: 0; }
.etym__term {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--ink);
}
.etym__lang {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-top: 0.4rem;
}
.etym__def { color: var(--ink-dim); }
@media (max-width: 560px) { .etym__row { grid-template-columns: 1fr; gap: 0.4rem; } }

/* pronunciation hint */
.pron {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-dim);
  margin-top: 1.2rem;
}
.pron__ipa { color: var(--faint); }

/* offering list */
.offer { list-style: none; margin: 0; padding: 0; }
.offer li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1.5rem;
  padding: 1.8rem 0;
  border-top: 1px solid var(--line);
  transition: background 0.4s var(--ease);
}
.offer li:hover { background: linear-gradient(90deg, rgba(233,234,236,0.025), transparent); }
.offer li:last-child { border-bottom: 1px solid var(--line); }
.offer__num { font-family: var(--mono); font-size: 0.8rem; color: var(--faint); padding-top: 0.35rem; }
.offer h3 { margin-bottom: 0.5rem; }
.offer p { margin: 0; color: var(--muted); max-width: 52ch; }

/* principle cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 760px) { .cards { grid-template-columns: 1fr; } }
.card { background: var(--bg); padding: clamp(1.5rem, 3vw, 2.4rem); }
.card__num { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.2em; color: var(--faint); }
.card h3 { margin: 1.2rem 0 0.6rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.96rem; }

/* CTA band */
.cta {
  text-align: center;
  padding-block: clamp(5rem, 12vh, 9rem);
  border-top: 1px solid var(--line);
}
.cta h2 { margin-bottom: 1.6rem; }
.cta p { margin-bottom: 2.4rem; }

/* --- Contact form ------------------------------------------------------- */

.form { display: grid; gap: 1.6rem; }
.field { display: grid; gap: 0.6rem; }
.field label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
}
.field input,
.field textarea {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink);
  background: var(--bg-elev);
  border: 1px solid var(--line-2);
  border-radius: 2px;
  padding: 0.85em 0.95em;
  width: 100%;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.field textarea { resize: vertical; min-height: 9rem; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
  background: #101315;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--faint); }
.field[data-invalid="true"] input,
.field[data-invalid="true"] textarea { border-color: #b46b6b; }
.field__err { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.05em; color: #c98a8a; min-height: 0.9em; text-transform: none; }

/* honeypot: visually hidden, off-screen, not display:none (bots skip those) */
.hp {
  position: absolute !important;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.form__foot { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.form__status { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.04em; }
.form__status[data-state="ok"]  { color: #8fc7a3; }
.form__status[data-state="err"] { color: #c98a8a; }

.form-success {
  border: 1px solid var(--line-2);
  background: var(--bg-elev);
  padding: clamp(2rem, 5vw, 3rem);
  border-radius: 2px;
}
.form-success h3 { margin-bottom: 0.8rem; }
.form-success p { margin: 0; color: var(--ink-dim); }

/* contact aside detail */
.contact-meta { display: grid; gap: 1.8rem; }
.contact-meta dt { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.4rem; }
.contact-meta dd { margin: 0; color: var(--ink-dim); }

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

.footer { border-top: 1px solid var(--line); padding-block: clamp(3rem, 7vh, 5rem); }
.footer__inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; }
.footer__mark { display: flex; align-items: center; gap: 0.9rem; }
.footer__mark svg { width: 30px; height: 35px; color: var(--ink-dim); }
.footer__tag { font-family: var(--serif); font-style: italic; font-size: 1.3rem; color: var(--ink-dim); }
.footer__meta { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; color: var(--faint); text-align: right; line-height: 2; }
.footer__meta a:hover { color: var(--ink); }

/* --- Load reveal animation --------------------------------------------- */

.reveal { opacity: 0; transform: translateY(18px); }
.loaded .reveal {
  animation: reveal 0.9s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes reveal { to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}