/* Nekyia Labs — relational AI research lab */

:root {
  --obsidian: #0D0C12;
  --midnight-ink: #171524;
  --orphic-violet: #5C497A;
  --gold-thread: #B6934D;
  --river-blue: #5B6C85;
  --bone: #F5F2EB;
  --bone-dim: rgba(245, 242, 235, 0.62);
  --bone-faint: rgba(245, 242, 235, 0.38);
  --bone-rule: rgba(245, 242, 235, 0.08);

  --font-serif: "Cormorant Garamond", "Cormorant", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, monospace;

  --col-narrow: 680px;
  --col-wide: 880px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--obsidian);
  color: var(--bone);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  /* Ultra-subtle vignette to give the page depth without a gradient */
  background:
    radial-gradient(ellipse at 50% 0%, rgba(92, 73, 122, 0.08) 0%, rgba(13, 12, 18, 0) 50%),
    var(--obsidian);
  min-height: 100vh;
}

::selection {
  background: var(--orphic-violet);
  color: var(--bone);
}

a {
  color: var(--bone);
  text-decoration: none;
  border-bottom: 1px solid var(--bone-faint);
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}
a:hover {
  color: var(--bone);
  border-bottom-color: var(--gold-thread);
}

/* ───────── layout ───────── */

.page {
  width: 100%;
  overflow-x: hidden;
}

.col {
  width: 100%;
  max-width: var(--col-narrow);
  margin: 0 auto;
  padding: 0 32px;
}

.col-wide {
  max-width: var(--col-wide);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-thread);
}

.rule {
  height: 1px;
  width: 100%;
  background: var(--gold-thread);
  opacity: 0.55;
  border: 0;
  margin: 0;
}
.rule-faint {
  background: var(--bone-rule);
  opacity: 1;
}

.serif {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.005em;
}

.italic { font-style: italic; }

/* ───────── hero ───────── */

.hero {
  min-height: 100vh;
  padding: 56px 32px 96px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.wordmark {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.32em;
  color: var(--gold-thread);
  text-transform: uppercase;
  border: 0;
}

.hero-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--bone-faint);
  text-transform: uppercase;
}

.hero-body {
  flex: 1;
  display: flex;
  align-items: center;
  width: 100%;
  margin-top: 24px;
}

.hero-inner {
  width: 100%;
  max-width: var(--col-narrow);
  margin: 0 auto;
}

.hero-eyebrow {
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.hero-eyebrow .dash {
  width: 28px;
  height: 1px;
  background: var(--gold-thread);
  display: inline-block;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--bone);
  margin: 0 0 56px 0;
  text-wrap: balance;
}

.hero-tagline .accent {
  font-style: italic;
  color: var(--bone);
}

.founding-statement {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.2vw, 24px);
  line-height: 1.55;
  color: var(--bone);
  border-left: 1px solid var(--gold-thread);
  padding: 4px 0 4px 28px;
  margin: 0 0 56px 0;
  max-width: 600px;
  text-wrap: pretty;
}

.hero-subhead {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--bone-dim);
  max-width: 540px;
  text-wrap: pretty;
}

.hero-bottom {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--bone-faint);
  text-transform: uppercase;
}

.scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--bone-faint);
}

.scroll-cue .line {
  width: 1px;
  height: 32px;
  background: var(--bone-faint);
  display: inline-block;
  animation: scrollCue 2.4s var(--ease) infinite;
  transform-origin: top;
}

@keyframes scrollCue {
  0%   { transform: scaleY(0.2); transform-origin: top; opacity: 0.3; }
  40%  { transform: scaleY(1);   transform-origin: top; opacity: 1; }
  60%  { transform: scaleY(1);   transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0.2); transform-origin: bottom; opacity: 0.3; }
}

/* ───────── section frame ───────── */

.section {
  padding: 120px 32px;
}

.section-header {
  max-width: var(--col-narrow);
  margin: 0 auto 72px auto;
}

.section-eyebrow-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
.section-eyebrow-row .dash {
  width: 28px;
  height: 1px;
  background: var(--gold-thread);
}

.section-heading {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(36px, 4.8vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--bone);
  margin: 0 0 20px 0;
  text-wrap: balance;
}

.section-subhead {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--bone-dim);
  max-width: 560px;
  text-wrap: pretty;
}

/* ───────── research stack ───────── */

.research {
  max-width: var(--col-narrow);
  margin: 0 auto;
}

.research-item {
  padding: 48px 0;
  border-top: 1px solid var(--bone-rule);
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  position: relative;
  cursor: default;
  transition: background 300ms var(--ease);
}
.research-item:last-child {
  border-bottom: 1px solid var(--bone-rule);
}

.research-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 0;
  height: 1px;
  background: var(--gold-thread);
  transition: width 600ms var(--ease);
}
.research-item:hover::before {
  width: 100%;
}

.research-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-thread);
  padding-top: 10px;
  font-feature-settings: "tnum";
}

.research-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.research-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(24px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--bone);
  margin: 0;
  text-wrap: balance;
}

.research-question {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 19px;
  line-height: 1.45;
  color: var(--orphic-violet);
  margin: 0;
  text-wrap: pretty;
}

/* a slightly brighter violet for legibility on obsidian */
.research-question {
  color: #9784b8;
}

.research-desc {
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--bone-dim);
  margin: 4px 0 0 0;
  max-width: 56ch;
  text-wrap: pretty;
}

/* ───────── why nekyia ───────── */

.why {
  max-width: var(--col-narrow);
  margin: 0 auto;
}

.why-paragraph {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.45;
  color: var(--bone);
  margin: 0 0 36px 0;
  text-wrap: pretty;
  letter-spacing: -0.005em;
}

.why-paragraph:last-child {
  margin-bottom: 0;
  font-style: italic;
  color: var(--bone);
}

.why-paragraph .vio {
  color: #b8a3dc;
}

/* ───────── waitlist ───────── */

.waitlist-section {
  padding: 140px 32px;
  background: var(--midnight-ink);
  position: relative;
}

.waitlist-section::before,
.waitlist-section::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: min(var(--col-narrow), calc(100% - 64px));
  height: 1px;
  background: var(--gold-thread);
  opacity: 0.4;
}
.waitlist-section::before { top: 0; }
.waitlist-section::after  { bottom: 0; }

.waitlist {
  max-width: var(--col-narrow);
  margin: 0 auto;
}

.waitlist-heading {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(36px, 4.4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--bone);
  margin: 0 0 20px 0;
}

.waitlist-copy {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--bone-dim);
  max-width: 540px;
  margin: 0 0 48px 0;
  text-wrap: pretty;
}

.waitlist-form {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--bone-faint);
  padding: 0 0 14px 0;
  max-width: 560px;
  align-items: baseline;
  transition: border-color 200ms var(--ease);
  position: relative;
}
.waitlist-form.focused {
  border-bottom-color: var(--gold-thread);
}
.waitlist-form.error {
  border-bottom-color: #c97a6a;
}

.waitlist-input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--bone);
  font-family: var(--font-sans);
  font-size: 17px;
  padding: 8px 0;
  letter-spacing: -0.005em;
}
.waitlist-input::placeholder {
  color: var(--bone-faint);
}

.waitlist-submit {
  background: transparent;
  border: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-thread);
  padding: 8px 0 8px 24px;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: color 200ms var(--ease), gap 200ms var(--ease);
}
.waitlist-submit:hover {
  color: var(--bone);
  gap: 14px;
}
.waitlist-submit:disabled {
  cursor: default;
  opacity: 0.45;
}
.waitlist-submit .arrow {
  display: inline-block;
  transition: transform 200ms var(--ease);
}
.waitlist-submit:hover .arrow {
  transform: translateX(4px);
}

.waitlist-status {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-faint);
  min-height: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.waitlist-status.error    { color: #c97a6a; }
.waitlist-status.success  { color: var(--gold-thread); }

.waitlist-status .mark {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.waitlist-confirmed {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 22px;
  line-height: 1.5;
  color: var(--bone);
  max-width: 560px;
  padding: 4px 0 4px 24px;
  border-left: 1px solid var(--gold-thread);
  margin: 0;
  animation: fadeUp 600ms var(--ease) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.waitlist-foot {
  margin-top: 36px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-faint);
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.waitlist-foot span::before {
  content: "·";
  margin-right: 24px;
  color: var(--bone-faint);
}
.waitlist-foot span:first-child::before { content: ""; margin: 0; }

/* ───────── footer ───────── */

.footer {
  padding: 64px 32px 48px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-mark {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold-thread);
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-faint);
}

.footer-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 15px;
  color: var(--bone-dim);
  letter-spacing: 0.02em;
}

/* ───────── reveal-on-scroll ───────── */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 800ms var(--ease), transform 800ms var(--ease);
  transition-delay: var(--delay, 0ms);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ───────── responsive ───────── */

@media (max-width: 720px) {
  body { font-size: 16px; }

  .hero { padding: 32px 24px 64px; }
  .hero-tagline { font-size: 44px; margin-bottom: 40px; }
  .founding-statement { font-size: 19px; padding-left: 20px; margin-bottom: 40px; }

  .section { padding: 80px 24px; }
  .waitlist-section { padding: 96px 24px; }
  .section-header { margin-bottom: 48px; }
  .section-heading { font-size: 36px; }

  .research-item {
    grid-template-columns: 40px 1fr;
    gap: 16px;
    padding: 36px 0;
  }
  .research-title { font-size: 22px; }
  .research-question { font-size: 17px; }

  .why-paragraph { font-size: 21px; }

  .waitlist-form { flex-direction: column; align-items: stretch; gap: 16px; }
  .waitlist-submit { padding: 12px 0 0 0; justify-content: flex-start; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}