/* Visual Cue Lab — Landing */


/* ── Fonts ── */

@font-face {
  font-family: "VCL Sans";
  src: url("../fonts/LibreFranklin-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "VCL Sans";
  src: url("../fonts/LibreFranklin-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "VCL Sans";
  src: url("../fonts/LibreFranklin-Black.ttf") format("truetype");
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "VCL Mono";
  src: url("../fonts/IBMPlexMono-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}


/* ── Design tokens ── */

:root {
  color-scheme: dark;
  --bg: #000000;
  --fg: #ffffff;
  --muted: rgba(255, 255, 255, 0.76);
  --line: #ffffff;
  --line-subtle: rgba(255, 255, 255, 0.18);
  --accent: #d4ab45;
  --logo-ring: #ffffff;
  --logo-dot: #d4ab45;
}


/* ── Reset & base ── */

* { box-sizing: border-box; }

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.55 "VCL Sans", sans-serif;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img, svg { display: block; }


/* ── Shell ── */

.site-shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 32px;
}


/* ── Topbar ── */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  display: inline-flex;
}

.brand-mark svg { width: 100%; height: 100%; }
.brand-mark__ring { fill: var(--logo-ring); }
.brand-mark__dot  { fill: var(--logo-dot); }

.brand-wordmark {
  font-family: "VCL Sans", sans-serif;
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.github-link {
  display: flex;
  align-items: center;
  transition: opacity 140ms ease;
}

.github-link:hover { opacity: 0.6; }

.github-link svg {
  width: 21px;
  height: 21px;
  fill: currentColor;
}


/* ── Hero ── */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: center;
  gap: 0 40px;
  padding: 32px 0 0;
}

.hero h1 {
  margin: 0;
  font-family: "VCL Sans", sans-serif;
  font-size: clamp(3rem, 6vw, 5.1rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.hero-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-side p {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.55;
  max-width: 34ch;
}

.hero-tags {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.hero-tags span {
  border: 1px solid var(--accent);
  color: var(--accent);
  background: var(--bg);
  padding: 4px 12px;
  font-family: "VCL Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}

/* EEG emotion lines — canvas + positioned labels, spans full grid width. */

.hero-lines {
  grid-column: 1 / -1;
  position: relative;
  height: 150px;
  margin: 20px 0;
}

.hero-lines-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-lines-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-label {
  position: absolute;
  left: 0;
  font-family: "VCL Mono", monospace;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  line-height: 1;
  transform: translateY(-50%);
}

.hero-x-label {
  position: absolute;
  top: -8px;
  left: 0;  /* JS updates left each frame */
  font-family: "VCL Mono", monospace;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.10em;
  color: #ffffff;
  white-space: nowrap;
  pointer-events: none;
}


/* ── Capabilities ── */

.capabilities {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
}

.capability {
  background: var(--bg);
  padding: 20px;
}

.capability-label {
  display: block;
  margin: 0 0 8px;
  font-family: "VCL Mono", monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.capability p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.5;
}


/* ── Content grid ── */

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.panel {
  background: var(--bg);
  padding: 20px 24px;
}

.section-eyebrow {
  display: block;
  margin: 0 0 8px;
  font-family: "VCL Mono", monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  margin: 0 0 8px;
  font-family: "VCL Sans", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title--sentence {
  letter-spacing: 0;
  text-transform: none;
}


/* ── About ── */

.about-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}


/* ── Project ── */

.project-desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.stack span {
  font-family: "VCL Mono", monospace;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}

.stack span::after {
  content: "\00b7";
  margin-left: 8px;
}

.stack span:last-child::after {
  content: "";
  margin-left: 0;
}


/* ── Project layout (video + text side-by-side) ── */

.project-layout {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 20px;
  align-items: center;
  margin-top: 12px;
}

.demo-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #111;
}

.demo-poster {
  position: absolute;
  inset: 0;
  cursor: pointer;
}

.demo-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.demo-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  opacity: 0.55;
  transition: opacity 200ms ease;
}

.demo-play:hover {
  opacity: 1;
}

.demo-play svg {
  width: 100%;
  height: 100%;
}

/* ── Lightbox ── */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0);
  transition: background 300ms ease;
}

.lightbox.is-open {
  background: rgba(0, 0, 0, 0.88);
}

.lightbox-wrap {
  position: relative;
  width: 88vw;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 300ms ease, transform 300ms ease;
}

.lightbox.is-open .lightbox-wrap {
  opacity: 1;
  transform: scale(1);
}

.lightbox-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.lightbox-close {
  position: absolute;
  top: -36px;
  right: 0;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 140ms ease;
}

.lightbox-close:hover {
  color: #fff;
}


/* ── Contact ── */

.panel-contact {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 1px;
  align-items: start;
}

.contact-types {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-types li {
  font-family: "VCL Mono", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-types li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: 1px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-field { margin-bottom: 12px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line-subtle);
  background: transparent;
  color: var(--fg);
  padding: 10px 12px;
  font-size: 0.95rem;
  outline: 0;
  resize: vertical;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  font-family: "VCL Mono", monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.5;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

.form-submit {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  padding: 8px 24px;
  font-family: "VCL Mono", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}

.form-submit:hover {
  background: var(--accent);
  color: var(--bg);
}

.form-submit:disabled {
  opacity: 0.5;
  cursor: default;
}

.form-confirmation {
  font-family: "VCL Mono", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}


/* ── Footer ── */

.footer {
  padding: 20px 0;
  border-top: 1px solid var(--line-subtle);
}

.footer p {
  margin: 0;
  color: var(--muted);
  font-family: "VCL Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer a {
  color: var(--muted);
  transition: color 140ms ease;
}

.footer a:hover { color: var(--accent); }


/* ── Responsive ── */

@media (max-width: 1100px) {
  .site-shell { padding: 0 24px; }

  .hero {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 24px 0 0;
    align-items: start;
  }

  .hero-lines {
    height: 120px;
    margin: 16px 0;
  }

  .capabilities { grid-template-columns: repeat(2, 1fr); }
  .content-grid { grid-template-columns: 1fr; }

  .project-layout { grid-template-columns: 1fr; }

  .panel-contact {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 720px) {
  .site-shell { padding: 0 16px; }

  .hero {
    padding: 20px 0 0;
  }

  .hero h1 { font-size: clamp(2.2rem, 13vw, 3.3rem); }

  .hero-lines {
    height: 90px;
    margin: 12px 0;
  }

  .hero-label, .hero-x-label { font-size: 0.48rem; }

  .brand-wordmark {
    font-size: 0.92rem;
    letter-spacing: 0.12em;
  }

  .capabilities { grid-template-columns: 1fr; }
  .panel { padding: 20px 16px; }
  .form-row { grid-template-columns: 1fr; }

  .demo-play { width: 32px; height: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .demo-play,
  .lightbox,
  .lightbox-wrap,
  .lightbox-close {
    transition-duration: 0ms;
  }
}