/* NHLGuru teaser page — vanilla CSS, no build step, no external fonts. */

:root {
  --bg-0: #05040a;
  --bg-1: #0b0716;
  --bg-2: #140b26;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-border: rgba(255, 255, 255, 0.09);
  --text-0: #f4f2fb;
  --text-1: #cbc4de;
  --text-2: #8f89a8;
  --accent-violet: #a78bfa;
  --accent-violet-strong: #8b5cf6;
  --accent-blue: #38bdf8;
  --accent-amber: #f5a656;
  --focus-ring: #38bdf8;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas,
    monospace;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;

  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg-0);
  color-scheme: dark;
}

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  font-family: var(--font-sans);
  color: var(--text-0);
  background: var(--bg-0);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--bg-2);
  color: var(--text-0);
  padding: var(--space-1) var(--space-2);
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

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

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4) var(--space-2);
  overflow: hidden;
  background:
    radial-gradient(60% 55% at 50% 12%, rgba(139, 92, 246, 0.35), transparent 60%),
    radial-gradient(55% 45% at 85% 85%, rgba(56, 189, 248, 0.16), transparent 60%),
    linear-gradient(160deg, var(--bg-1) 0%, var(--bg-0) 55%, #090512 100%);
}

.hero::before {
  /* faint rink-line texture, pure CSS, zero network cost */
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    repeating-linear-gradient(
      115deg,
      rgba(255, 255, 255, 0.025) 0px,
      rgba(255, 255, 255, 0.025) 1px,
      transparent 1px,
      transparent 68px
    );
  mask-image: radial-gradient(70% 70% at 50% 35%, black, transparent 75%);
}

.hero__inner {
  position: relative;
  max-width: 46rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__mark {
  margin-bottom: var(--space-2);
  filter: drop-shadow(0 0 18px rgba(167, 139, 250, 0.45));
}

.hero__eyebrow {
  margin: 0 0 var(--space-1);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-blue);
}

.hero__brand {
  margin: 0;
  font-size: clamp(2.6rem, 8vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  background: linear-gradient(120deg, #ffffff 20%, var(--accent-violet) 65%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__tagline {
  margin: var(--space-3) 0 0;
  font-size: clamp(1.15rem, 3vw, 1.6rem);
  font-weight: 600;
  color: var(--text-0);
}

.hero__subtagline {
  margin: 0.35rem 0 0;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  color: var(--text-1);
}

.cta {
  margin-top: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.7rem;
  border-radius: 999px;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  color: #0a0714;
  background: linear-gradient(120deg, var(--accent-blue), var(--accent-violet));
  box-shadow: 0 10px 30px -8px rgba(139, 92, 246, 0.55);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.cta:hover,
.cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -6px rgba(139, 92, 246, 0.65);
}

.cta__arrow {
  transition: transform 180ms ease;
}

.cta:hover .cta__arrow,
.cta:focus-visible .cta__arrow {
  transform: translateX(3px);
}

.hero__note {
  margin: var(--space-2) 0 0;
  font-size: 0.85rem;
  color: var(--text-2);
}

.hero__scrollcue {
  position: absolute;
  bottom: var(--space-3);
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 36px;
  border: 2px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
}

.hero__scrollcue span {
  display: block;
  width: 4px;
  height: 8px;
  margin: 6px auto 0;
  border-radius: 999px;
  background: var(--accent-blue);
  animation: scrollcue 1.8s ease-in-out infinite;
}

@keyframes scrollcue {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  70% {
    transform: translateY(14px);
    opacity: 0;
  }
  100% {
    transform: translateY(14px);
    opacity: 0;
  }
}

/* ------------------------------------------------------------------ */
/* Feature sections                                                     */
/* ------------------------------------------------------------------ */

main {
  background: var(--bg-0);
}

.feature {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-5) var(--space-3);
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: var(--space-4);
  align-items: center;
}

.feature--reverse .feature__text {
  order: 2;
}

.feature--reverse .feature__media {
  order: 1;
}

.feature__eyebrow {
  margin: 0 0 var(--space-1);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-blue);
}

.feature__eyebrow--future {
  color: var(--accent-amber);
}

.feature__title {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.6rem, 3.2vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-0);
}

.feature__body {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-1);
}

.feature__body strong {
  color: var(--text-0);
  font-variant-numeric: tabular-nums;
}

.feature__media {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.7);
}

.feature__media img {
  width: 100%;
}

.feature__media figcaption {
  padding: 0.65rem 0.9rem;
  font-size: 0.8rem;
  color: var(--text-2);
  border-top: 1px solid var(--panel-border);
}

/* ------------------------------------------------------------------ */
/* Scroll fade-in — progressive enhancement                            */
/* ------------------------------------------------------------------ */

/* Base state (no-JS / JS-disabled / reduced-motion): always visible. */
.fade-section {
  opacity: 1;
  transform: none;
}

/* Only when JS has confirmed motion is allowed does the pre-visible
   state apply; IntersectionObserver then flips .is-visible on. See
   js/main.js. This guarantees content is never hidden behind JS that
   fails to load, and reduced-motion users never see any movement. */
body.js-fade-ready .fade-section {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
  will-change: opacity, transform;
}

body.js-fade-ready .fade-section.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  body.js-fade-ready .fade-section {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero__scrollcue span {
    animation: none;
  }
  .cta,
  .cta__arrow {
    transition: none;
  }
}

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

.site-footer {
  padding: var(--space-4) var(--space-2) var(--space-4);
  text-align: center;
  color: var(--text-2);
  font-size: 0.85rem;
  border-top: 1px solid var(--panel-border);
}

.site-footer p {
  margin: 0;
}

/* ------------------------------------------------------------------ */
/* Responsive                                                           */
/* ------------------------------------------------------------------ */

@media (max-width: 900px) {
  .feature {
    grid-template-columns: 1fr;
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
  }

  .feature--reverse .feature__text,
  .feature--reverse .feature__media {
    order: initial;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--space-3) var(--space-2);
  }

  .cta {
    width: 100%;
    justify-content: center;
  }

  .feature {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }
}