:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #020617;
  color: #e2e8f0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% -8%, rgba(34, 211, 238, 0.14), transparent 34rem),
    radial-gradient(circle at 88% 4%, rgba(99, 102, 241, 0.13), transparent 30rem),
    linear-gradient(180deg, #030817 0%, #020617 45%, #02040e 100%);
  background-attachment: fixed;
}

body::before {
  background: linear-gradient(90deg, #22d3ee, #6366f1 55%, #a855f7);
  content: "";
  height: 3px;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 20;
}

.page {
  margin: 0 auto;
  max-width: 1040px;
  padding: 28px 24px 72px;
}

nav {
  align-items: center;
  backdrop-filter: blur(16px);
  background: rgba(8, 15, 31, 0.74);
  border: 1px solid rgba(51, 65, 85, 0.72);
  border-radius: 999px;
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.22);
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  margin-bottom: 54px;
  padding: 6px;
  width: fit-content;
}

nav::before {
  background: linear-gradient(135deg, #22d3ee, #6366f1);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.45);
  content: "";
  height: 10px;
  margin: 0 9px 0 7px;
  width: 10px;
}

nav a {
  border: 0;
  border-radius: 999px;
  color: #cbd5e1;
  font-size: 0.9rem;
  font-weight: 650;
  padding: 9px 14px;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

nav a:hover,
nav a:focus-visible {
  background: rgba(51, 65, 85, 0.62);
  color: #ffffff;
  outline: none;
}

/* Keep the global header focused. Secondary discovery links remain in-page. */
nav a[href="/poker-ai.html"],
nav a[href="/poker-technology.html"],
nav a[href="/contact.html"],
nav a[href="/glossary.html"],
nav a[href="/faq.html"],
nav a[href="/privacy.html"],
nav a[href="/#articles"] {
  display: none;
}

nav a[href="/"] {
  font-size: 0;
}

nav a[href="/"]::after {
  content: "Home";
  font-size: 0.9rem;
}

a {
  color: #67e8f9;
  text-decoration-color: rgba(103, 232, 249, 0.48);
  text-underline-offset: 3px;
}

a:hover {
  color: #cffafe;
  text-decoration-color: currentColor;
}

h1 {
  color: #f8fafc;
  font-size: clamp(2.7rem, 7vw, 5.2rem);
  letter-spacing: -0.055em;
  line-height: 0.96;
  margin: 0 0 22px;
  max-width: 900px;
}

h2 {
  color: #f1f5f9;
  font-size: clamp(1.45rem, 2.8vw, 1.9rem);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin: 46px 0 14px;
}

h3 {
  color: #e2e8f0;
  line-height: 1.35;
  margin: 26px 0 10px;
}

p,
li {
  color: #a7b4c8;
  font-size: 1.03rem;
  line-height: 1.78;
}

ul {
  padding-left: 22px;
}

.page > .eyebrow:first-of-type {
  align-items: center;
  display: flex;
  gap: 10px;
}

.page > .eyebrow:first-of-type::before {
  background: linear-gradient(180deg, #22d3ee, #6366f1);
  border-radius: 999px;
  content: "";
  height: 24px;
  width: 4px;
}

.eyebrow {
  color: #67e8f9;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.19em;
  margin: 0 0 16px;
  text-transform: uppercase;
}

.dek {
  color: #cbd5e1;
  font-size: clamp(1.1rem, 2vw, 1.28rem);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 820px;
}

.meta {
  border-bottom: 1px solid rgba(51, 65, 85, 0.6);
  color: #71819a;
  font-size: 0.86rem;
  margin-bottom: 34px;
  padding-bottom: 22px;
}

.callout {
  background:
    linear-gradient(135deg, rgba(8, 145, 178, 0.16), rgba(99, 102, 241, 0.09)),
    rgba(15, 23, 42, 0.82);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 18px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
  margin: 34px 0;
  padding: 24px 26px;
}

.callout p {
  color: #cbd5e1;
  margin: 0;
}

.author-box,
.sources,
.contact-card {
  background: linear-gradient(145deg, rgba(20, 31, 53, 0.92), rgba(10, 17, 34, 0.92));
  border: 1px solid rgba(51, 65, 85, 0.72);
  border-radius: 18px;
  box-shadow: 0 20px 52px rgba(0, 0, 0, 0.16);
  margin: 38px 0;
  padding: 26px;
}

.author-box h2,
.sources h2,
.contact-card h2 {
  margin-top: 0;
}

.author-box p,
.sources li,
.contact-card p {
  font-size: 0.98rem;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.social-links a {
  background: rgba(2, 6, 23, 0.56);
  border: 1px solid #334155;
  border-radius: 999px;
  color: #cbd5e1;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 8px 12px;
  text-decoration: none;
}

.social-links a:hover {
  border-color: #22d3ee;
  color: #f8fafc;
}

.sources ol {
  padding-left: 22px;
}

.contact-footer {
  border-top: 1px solid rgba(51, 65, 85, 0.62);
  color: #8090a8;
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 48px;
  padding-top: 24px;
}

.topics {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 20px 0 34px;
}

.topics span {
  background: rgba(2, 6, 23, 0.58);
  border: 1px solid rgba(71, 85, 105, 0.72);
  border-radius: 999px;
  color: #cbd5e1;
  font-size: 0.78rem;
  padding: 7px 10px;
}

.related {
  border-top: 1px solid rgba(51, 65, 85, 0.62);
  margin-top: 52px;
  padding-top: 26px;
}

.related a {
  display: block;
  margin: 12px 0;
}

@media (max-width: 720px) {
  .page {
    padding: 22px 18px 54px;
  }

  nav {
    border-radius: 18px;
    margin-bottom: 40px;
    width: 100%;
  }

  nav::before {
    display: none;
  }

  nav a {
    flex: 1 1 auto;
    padding: 9px 10px;
    text-align: center;
  }

  h1 {
    font-size: clamp(2.45rem, 13vw, 4rem);
  }

  .author-box,
  .sources,
  .contact-card,
  .callout {
    border-radius: 14px;
    padding: 20px;
  }
}