/* ============================================================
   AlxLabs — "Workshop blueprint" design system (static build)
   Tokens first; components style through tokens only.
   ============================================================ */

/* ---------- Self-hosted fonts (latin subset, no CDN calls) ---------- */
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/fonts/archivo-700.woff2") format("woff2");
}
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("/fonts/archivo-800.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/plex-sans-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/plex-sans-500.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/plex-sans-600.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/plex-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/plex-mono-500.woff2") format("woff2");
}

:root {
  --font-display: "Archivo";
  --font-body: "IBM Plex Sans";
  --font-mono: "IBM Plex Mono";
}

/* ---------- Tokens: light (default) ---------- */
:root {
  --bg: #fbfaf7;
  --bg-raised: #ffffff;
  --bg-sunken: #f3f1ec;

  --text: #10141a;
  --text-2: #5b6570;
  --text-3: #8a929c;

  --accent: #cb5a2e;
  --accent-strong: #b04a22;
  --accent-soft: rgba(203, 90, 46, 0.09);
  --on-accent: #fff8f4;

  --line: rgba(16, 20, 26, 0.14);
  --line-soft: rgba(16, 20, 26, 0.07);
  --grid-line: rgba(16, 20, 26, 0.045);

  --ok: #2e7d4f;
  --err: #b3362b;

  --shadow: 0 1px 2px rgba(16, 20, 26, 0.05), 0 8px 28px rgba(16, 20, 26, 0.07);

  --fs-hero: clamp(2.5rem, 1.4rem + 4.6vw, 4.75rem);
  --fs-h2: clamp(1.75rem, 1.3rem + 1.8vw, 2.75rem);
  --fs-h3: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.9375rem;
  --fs-mono: 0.8125rem;

  --radius: 3px;
  --container: 76rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0f14;
    --bg-raised: #12161d;
    --bg-sunken: #090b0f;

    --text: #ece9e2;
    --text-2: #9aa3ad;
    --text-3: #6b7480;

    --accent: #e07043;
    --accent-strong: #ea8055;
    --accent-soft: rgba(224, 112, 67, 0.13);
    --on-accent: #1a0e08;

    --line: rgba(236, 233, 226, 0.16);
    --line-soft: rgba(236, 233, 226, 0.08);
    --grid-line: rgba(236, 233, 226, 0.05);

    --ok: #58b380;
    --err: #e06a5f;

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 28px rgba(0, 0, 0, 0.45);

    color-scheme: dark;
  }
}

:root[data-theme="light"] {
  --bg: #fbfaf7;
  --bg-raised: #ffffff;
  --bg-sunken: #f3f1ec;
  --text: #10141a;
  --text-2: #5b6570;
  --text-3: #8a929c;
  --accent: #cb5a2e;
  --accent-strong: #b04a22;
  --accent-soft: rgba(203, 90, 46, 0.09);
  --on-accent: #fff8f4;
  --line: rgba(16, 20, 26, 0.14);
  --line-soft: rgba(16, 20, 26, 0.07);
  --grid-line: rgba(16, 20, 26, 0.045);
  --ok: #2e7d4f;
  --err: #b3362b;
  --shadow: 0 1px 2px rgba(16, 20, 26, 0.05), 0 8px 28px rgba(16, 20, 26, 0.07);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0c0f14;
  --bg-raised: #12161d;
  --bg-sunken: #090b0f;
  --text: #ece9e2;
  --text-2: #9aa3ad;
  --text-3: #6b7480;
  --accent: #e07043;
  --accent-strong: #ea8055;
  --accent-soft: rgba(224, 112, 67, 0.13);
  --on-accent: #1a0e08;
  --line: rgba(236, 233, 226, 0.16);
  --line-soft: rgba(236, 233, 226, 0.08);
  --grid-line: rgba(236, 233, 226, 0.05);
  --ok: #58b380;
  --err: #e06a5f;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 28px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body), system-ui, sans-serif;
  font-size: var(--fs-body);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; }
h1, h2, h3 {
  font-family: var(--font-display), var(--font-body), system-ui, sans-serif;
  line-height: 1.08;
  text-wrap: balance;
  font-weight: 800;
  letter-spacing: -0.015em;
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--accent); color: var(--on-accent); }

/* ---------- Shared primitives ---------- */
.container { max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }

.eyebrow {
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.eyebrow::after { content: ""; height: 1px; width: 3.5rem; background: var(--line); }

.section { padding-block: clamp(4.5rem, 10vw, 8rem); border-top: 1px solid var(--line-soft); }

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   Header
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  backdrop-filter: blur(12px) saturate(1.2);
  border-bottom: 1px solid var(--line-soft);
}
.header__inner { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.header__wordmark {
  font-family: var(--font-display), var(--font-body), system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--text);
  text-decoration: none;
  line-height: 1;
}
.header__wordmark:hover .header__x { color: var(--accent-strong); }
.header__x { color: var(--accent); transition: color 0.15s ease; }
.header__nav { display: flex; align-items: center; gap: clamp(1.25rem, 3vw, 2.25rem); margin-left: auto; }
.header__navLink {
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.15s ease;
}
.header__navLink:hover { color: var(--accent); }
@media (max-width: 639.98px) {
  .header__navLink:not(.header__navContact) { display: none; }
}
.header__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.header__toggle:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.header__icon { width: 16px; height: 16px; }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; padding-block: clamp(6.5rem, 15vw, 11rem) clamp(4rem, 9vw, 6rem); overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(to right, var(--grid-line) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(to bottom, var(--grid-line) 0 1px, transparent 1px 56px);
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 50%, transparent 97%);
  mask-image: linear-gradient(to bottom, black 0%, black 50%, transparent 97%);
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: end;
}
.hero__copy, .hero__demo { min-width: 0; }
@media (max-width: 56.25em) {
  .hero__inner { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .hero__demo { max-width: 34rem; }
}
.hero__title { margin-top: 1.5rem; font-size: var(--fs-hero); line-height: 1.04; }
.hero__mark {
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-size: 100% 0.08em;
  background-position: 0 91%;
  padding-bottom: 0.05em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.hero__sub { margin-top: 1.5rem; max-width: 34rem; color: var(--text-2); }
.hero__ctas { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: 0.875rem; }
.hero__btn {
  display: inline-flex;
  align-items: center;
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.hero__btn--primary { background: var(--accent); border: 1px solid transparent; color: var(--on-accent); }
.hero__btn--primary:hover { background: var(--accent-strong); }
.hero__btn--ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }
.hero__btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

.hero__card { background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero__cardHead {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.1rem;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono), monospace;
  font-size: 0.71rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-2);
}
.hero__cardTitle { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hero__cardFig { margin-left: auto; padding-left: 0.6rem; color: var(--text-3); }
.hero__dot { flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: hero-pulse 1.8s ease-out infinite; }
@keyframes hero-pulse {
  0% { box-shadow: 0 0 0 0 var(--accent-soft); }
  70%, 100% { box-shadow: 0 0 0 8px transparent; }
}
.hero__convo { position: relative; }
.hero__ghost, .hero__live { display: flex; flex-direction: column; gap: 1rem; padding: 1.2rem 1.1rem 1.35rem; }
.hero__ghost { visibility: hidden; }
.hero__live { position: absolute; inset: 0; }
.hero__line { border-left: 2px solid var(--line-soft); padding-left: 0.9rem; }
.hero__line--ai { border-left-color: var(--accent); }
.hero__speaker { display: block; margin-bottom: 0.3rem; font-family: var(--font-mono), monospace; font-size: 0.71rem; letter-spacing: 0.13em; color: var(--text-3); }
.hero__line--ai .hero__speaker { color: var(--accent); }
.hero__msg { display: block; font-size: var(--fs-small); line-height: 1.55; color: var(--text-2); }
.hero__line--ai .hero__msg { color: var(--text); font-weight: 500; }
.hero__caret {
  display: inline-block;
  width: 0.5em;
  height: 1em;
  margin-left: 0.15em;
  vertical-align: -0.12em;
  background: var(--accent);
  animation: hero-blink 1.05s steps(2, start) infinite;
}
@keyframes hero-blink { 50% { opacity: 0; } }
.hero__srOnly {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.hero__facts {
  margin-top: clamp(3.5rem, 8vw, 5.5rem);
  padding: 1.4rem 0 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  row-gap: 0.6rem;
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  color: var(--text-3);
}
.hero__fact { padding-inline: 1.4rem; border-left: 1px solid var(--line); }
.hero__fact:first-child { padding-left: 0; border-left: 0; }

/* ============================================================
   Products
   ============================================================ */
.products__header { max-width: 46rem; margin-bottom: clamp(2.5rem, 6vw, 4rem); }
.products__title { font-size: var(--fs-h2); margin-top: 1.25rem; }
.products__intro { margin-top: 1rem; color: var(--text-2); max-width: 38rem; }
.products__panels { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.products__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem 2.5rem;
  padding: clamp(1.75rem, 4vw, 2.75rem) clamp(0.75rem, 2vw, 1.5rem);
  border-radius: var(--radius);
  transition: opacity 0.6s ease, transform 0.6s ease, background-color 0.25s ease;
}
.products__panel + .products__panel { border-top: 1px solid var(--line-soft); }
@media (min-width: 60rem) {
  .products__panel { grid-template-columns: 8.5rem minmax(0, 1fr) minmax(0, 21rem); }
}
@media (hover: hover) and (pointer: fine) {
  .products__panel:hover { background: var(--bg-raised); }
  .products__panel:hover .products__coord { color: var(--accent); }
}
.products__rail { display: flex; align-items: center; gap: 0.875rem; }
@media (min-width: 60rem) {
  .products__rail { flex-direction: column; align-items: flex-start; gap: 1rem; }
}
.products__coord { font-family: var(--font-mono), monospace; font-size: var(--fs-mono); letter-spacing: 0.1em; color: var(--text-3); transition: color 0.25s ease; }
.products__badge {
  font-family: var(--font-mono), monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.25rem 0.5rem;
  white-space: nowrap;
}
.products__badge--flagship { color: var(--on-accent); background: var(--accent); border-color: var(--accent); }
.products__body { min-width: 0; }
.products__name { font-size: var(--fs-h3); }
.products__tagline { margin-top: 0.5rem; font-family: var(--font-mono), monospace; font-size: var(--fs-mono); letter-spacing: 0.02em; color: var(--accent); }
.products__blurb { margin-top: 0.875rem; color: var(--text-2); max-width: 34rem; }
.products__points { list-style: none; padding: 0; display: grid; gap: 0.75rem; align-content: start; }
@media (min-width: 60rem) {
  .products__points { border-left: 1px solid var(--line-soft); padding-left: 2rem; }
}
.products__point { position: relative; padding-left: 1.25rem; font-size: var(--fs-small); line-height: 1.55; color: var(--text-2); }
.products__point::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 6px; background: var(--accent); }

/* ============================================================
   Approach
   ============================================================ */
.approach__header { max-width: 46rem; margin-bottom: clamp(2.5rem, 6vw, 4rem); }
.approach__title { font-size: var(--fs-h2); margin-top: 1.25rem; }
.approach__lead { margin-top: 1rem; color: var(--text-2); max-width: 62ch; }
.approach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border-block: 1px solid var(--line-soft);
}
@media (min-width: 48rem) {
  .approach__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.approach__block { background: var(--bg); padding: clamp(1.75rem, 4vw, 2.75rem) clamp(1.25rem, 3vw, 2.25rem); }
.approach__label {
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}
.approach__labelIndex { color: var(--accent); }
.approach__body { margin-top: 0.875rem; color: var(--text-2); font-size: var(--fs-small); line-height: 1.65; max-width: 44ch; }

/* ============================================================
   Contact
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
@media (max-width: 800px) {
  .contact__grid { grid-template-columns: minmax(0, 1fr); }
}
.contact__intro { display: flex; flex-direction: column; gap: 1.25rem; }
.contact__heading { font-size: var(--fs-h2); }
.contact__lede { color: var(--text-2); max-width: 34rem; }
.contact__direct { font-family: var(--font-mono), monospace; font-size: var(--fs-mono); letter-spacing: 0.04em; color: var(--text-3); margin-top: 0.5rem; }
.contact__mailto { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--line); transition: border-color 0.2s ease, color 0.2s ease; }
.contact__mailto:hover { color: var(--accent-strong); border-bottom-color: var(--accent); }
.contact__panel { background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.contact__panelHeader {
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-3);
  padding: 0.875rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: var(--accent-soft);
}
.contact__form { display: flex; flex-direction: column; gap: 1.25rem; padding: 1.5rem; }
.contact__row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.25rem; }
@media (max-width: 480px) {
  .contact__row { grid-template-columns: minmax(0, 1fr); }
}
.contact__field { display: flex; flex-direction: column; gap: 0.4rem; min-width: 0; }
.contact__label { font-family: var(--font-mono), monospace; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-3); }
#captcha-question { color: var(--text); font-size: 0.9rem; font-weight: 600; display: inline-block; min-width: 60px; }
.contact__optional { text-transform: none; letter-spacing: 0.04em; }
.contact__input, .contact__textarea {
  width: 100%;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.65rem 0.85rem;
  font-size: var(--fs-small);
  color: var(--text);
  transition: border-color 0.2s ease;
}
.contact__textarea { resize: vertical; min-height: 7.5rem; line-height: 1.55; }
.contact__input::placeholder, .contact__textarea::placeholder { color: var(--text-3); opacity: 0.85; }
.contact__input:focus, .contact__textarea:focus { outline: none; border-color: var(--accent); }
.contact__actions { display: flex; }
.contact__submit {
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--accent);
  color: var(--on-accent);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.8rem 1.6rem;
  cursor: pointer;
  transition: background 0.2s ease;
}
.contact__submit:hover:not(:disabled) { background: var(--accent-strong); }
.contact__submit:disabled { opacity: 0.65; cursor: default; }
.contact__status { min-height: 1.25rem; font-size: var(--fs-small); margin: 0; }
.contact__error { color: var(--err); }
.contact__confirmation { padding: 2.5rem 1.5rem; display: flex; flex-direction: column; gap: 0.75rem; }
.contact__confirmationTag { font-family: var(--font-mono), monospace; font-size: var(--fs-mono); text-transform: uppercase; letter-spacing: 0.14em; color: var(--ok); }
.contact__confirmationLine { color: var(--ok); font-size: var(--fs-body); }

/* ============================================================
   Footer
   ============================================================ */
.footer { border-top: 1px solid var(--line-soft); padding-block: clamp(3rem, 7vw, 5rem) 2.25rem; }
.footer__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.footer__wordmark { font-family: var(--font-display), var(--font-body), system-ui, sans-serif; font-weight: 800; font-size: 1.0625rem; letter-spacing: -0.03em; color: var(--text); line-height: 1; }
.footer__x { color: var(--accent); }
.footer__tagline { margin-top: 0.75rem; font-size: var(--fs-small); color: var(--text-2); max-width: 34ch; }
.footer__mail {
  font-family: var(--font-mono), monospace;
  font-size: var(--fs-mono);
  letter-spacing: 0.04em;
  color: var(--text-2);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.footer__mail:hover { color: var(--accent); border-color: var(--accent); }
.footer__bottom {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem 2rem;
  flex-wrap: wrap;
}
.footer__copyright { font-size: 0.8125rem; color: var(--text-3); }
.footer__coord { font-family: var(--font-mono), monospace; font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); }
@media (max-width: 639.98px) {
  .footer__top, .footer__bottom { flex-direction: column; align-items: flex-start; }
}