/*
 * Intro popup — platform overview modal shown on the homepage.
 *
 * Every selector is prefixed `intro-` and the palette lives on the overlay
 * rather than :root, so the dark modal cannot leak into (or inherit from)
 * the light site theme in styles.css.
 */

.intro-overlay {
  --intro-ink: #f7f7f4;
  --intro-slate: #a9b0b0;
  --intro-signal: #58e0d0;
  --intro-line: rgba(255, 255, 255, 0.12);

  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(5, 7, 8, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, visibility 0.28s ease;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--intro-ink);
}

.intro-overlay.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Scroll lock while the dialog is open. The lock has to sit on `html`, not
   `body`: styles.css sets overflow-x on `html`, which makes it the viewport
   scroll container, so a body-level lock is ignored. */
html.intro-popup-open {
  overflow: hidden;
}

.intro-modal {
  width: min(1120px, 96vw);
  max-height: min(830px, 92vh);
  overflow: auto;
  position: relative;
  border-radius: 30px;
  background: #121416;
  box-shadow: 0 36px 110px rgba(0, 0, 0, 0.32);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.intro-modal h2,
.intro-modal h3,
.intro-modal p {
  margin: 0;
}

.intro-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--intro-line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--intro-ink);
  font-family: inherit;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  z-index: 5;
  transition: 0.2s ease;
}

.intro-close:hover {
  transform: rotate(5deg) scale(1.04);
  background: rgba(255, 255, 255, 0.12);
}

/* ── Hero ──────────────────────────────────────────────────────────────── */

.intro-hero {
  display: grid;
  grid-template-columns: 1.05fr 1.15fr;
  min-height: 430px;
  border-bottom: 1px solid var(--intro-line);
}

.intro-brand {
  padding: 42px 42px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--intro-line);
  background:
    radial-gradient(circle at 18% 18%, rgba(88, 224, 208, 0.08), transparent 32%),
    #101213;
}

.intro-eyebrow {
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 800;
}

.intro-eyebrow span {
  color: var(--intro-signal);
}

.intro-logo {
  margin: 14px 0 10px;
}

.intro-logo img {
  width: 100%;
  max-width: 520px;
  height: auto;
  display: block;
}

.intro-brandline {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  color: var(--intro-slate);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.intro-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--intro-signal);
}

.intro-body {
  padding: 58px 54px 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.intro-title {
  margin: 22px 0 16px;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 620px;
  color: var(--intro-ink);
}

.intro-title em {
  font-style: normal;
  color: var(--intro-signal);
}

.intro-lead {
  max-width: 640px;
  color: #d9dddc;
  font-size: 18px;
  line-height: 1.55;
}

/* ── Capabilities + CTA ────────────────────────────────────────────────── */

.intro-lower {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr;
}

.intro-story {
  padding: 30px 42px 34px;
  border-right: 1px solid var(--intro-line);
}

.intro-tag {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  padding: 8px 12px;
  border: 1px solid var(--intro-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.intro-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--intro-signal);
  box-shadow: 0 0 0 4px rgba(88, 224, 208, 0.12);
}

.intro-story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.intro-story h3,
.intro-cta h3 {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--intro-ink);
}

.intro-story p {
  color: var(--intro-slate);
  font-size: 14px;
  line-height: 1.5;
}

.intro-cta {
  padding: 30px 34px 34px;
  background: #0d0f10;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.intro-cta p {
  color: rgba(255, 255, 255, 0.66);
  margin: 0 0 18px;
  line-height: 1.45;
  font-size: 14px;
}

.intro-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.intro-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  text-decoration: none;
  font-family: inherit;
  font-weight: 800;
  font-size: 13px;
  cursor: pointer;
  transition: 0.2s ease;
}

.intro-btn-primary {
  background: var(--intro-signal);
  color: #fff;
}

.intro-btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.intro-btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

.intro-btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.5);
}

/* ── Responsive ────────────────────────────────────────────────────────── */

@media (max-width: 860px) {
  .intro-hero,
  .intro-lower {
    grid-template-columns: 1fr;
  }

  .intro-brand {
    border-right: 0;
    border-bottom: 1px solid var(--intro-line);
    padding: 32px 30px 28px;
  }

  .intro-body {
    padding: 38px 30px;
  }

  .intro-story {
    border-right: 0;
    border-bottom: 1px solid var(--intro-line);
    padding: 28px 30px;
  }

  .intro-cta {
    padding: 28px 30px;
  }

  .intro-story-grid {
    grid-template-columns: 1fr;
  }

  .intro-modal {
    max-height: 92vh;
  }

  .intro-title {
    font-size: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .intro-overlay,
  .intro-overlay * {
    transition: none !important;
  }

  .intro-close:hover,
  .intro-btn-primary:hover {
    transform: none;
  }
}