*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #111;
  --dark: #1a1a1a;
  --grey-dark: #333;
  --grey: #666;
  --grey-mid: #999;
  --grey-light: #ccc;
  --grey-pale: #e8e8e8;
  --off-white: #f5f5f5;
  --white: #fff;
}

html { scroll-behavior: smooth; }

body {
  font-family: Georgia, 'Times New Roman', Times, serif;
  font-size: 1.2rem;
  color: var(--grey-dark);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: Georgia, 'Times New Roman', Times, serif;
  line-height: 1.3;
  color: var(--black);
  font-weight: bold;
}

a { color: var(--black); text-decoration: none; }
a:hover { color: var(--grey); }

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--grey-pale);
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

nav .logo {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--black);
}

.nav-links { display: flex; gap: 32px; list-style: none; }

.nav-links a {
  color: var(--grey);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--black); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--black);
  margin: 6px 0;
}

/* ── HERO / BANNER ── */
.hero {
  padding: 96px 0 0;
  background: var(--white);
  text-align: center;
}

.hero-banner {
  max-width: 100%;
  margin: 0 auto;
}

.hero-banner img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-below {
  padding: 44px 0 56px;
  text-align: center;
}

.hero-below p {
  font-size: 1.3rem;
  color: var(--grey);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  border-radius: 5px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  font-weight: bold;
  letter-spacing: 0.5px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-black { background: var(--black); color: var(--white); }
.btn-black:hover { background: var(--grey-dark); color: var(--white); }

.btn-outline { background: transparent; color: var(--black); border: 2px solid var(--grey-light); }
.btn-outline:hover { border-color: var(--black); }

.btn-white { background: var(--white); color: var(--black); }
.btn-white:hover { background: var(--off-white); color: var(--black); }

/* ── PAGE SECTIONS ── */
.page-section {
  padding: 100px 0;
}

.page-section.alt { background: var(--off-white); }
.page-section.dark { background: var(--black); color: var(--white); }
.page-section.dark h2 { color: var(--white); }
.page-section.dark p { color: var(--grey-mid); }

.section-label {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
  font-weight: bold;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--grey-mid);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.8rem;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.25rem;
  color: var(--grey);
  max-width: 640px;
  margin-bottom: 48px;
  line-height: 1.8;
}

.text-center { text-align: center; }
.centered { margin-left: auto; margin-right: auto; text-align: center; }

/* ── ABOUT ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-grid blockquote {
  font-size: 1.4rem;
  font-style: italic;
  color: var(--black);
  line-height: 1.75;
  border-left: 4px solid var(--black);
  padding-left: 28px;
  margin-bottom: 20px;
}

.about-grid .attribution {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  color: var(--grey);
}

/* ── FEATURE CARDS (homepage) ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--grey-pale);
  border-radius: 10px;
  padding: 40px 32px;
  transition: all 0.2s;
  text-align: center;
}

.feature-card:hover {
  border-color: var(--black);
  box-shadow: 0 6px 24px rgba(0,0,0,0.07);
  transform: translateY(-3px);
}

.feature-icon {
  width: 72px;
  height: 72px;
  background: var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.feature-card h3 { font-size: 1.3rem; margin-bottom: 12px; }

.feature-card p {
  font-size: 1.05rem;
  color: var(--grey);
  line-height: 1.7;
}

/* ── YOUTUBE ── */
.youtube-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 44px;
}

.video-card {
  background: var(--dark);
  border: 1px solid var(--grey-dark);
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.2s;
}

.video-card:hover { border-color: var(--grey); }

.video-card .video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.video-card iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-card .video-title {
  padding: 16px 18px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  color: var(--grey-light);
}

.youtube-cta { text-align: center; }

/* ── ARTICLES ── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.article-card {
  display: flex;
  align-items: center;
  gap: 18px;
  border: 1px solid var(--grey-pale);
  border-radius: 8px;
  padding: 22px 26px;
  transition: all 0.2s;
}

.article-card:hover { border-color: var(--black); color: var(--black); }

.article-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--off-white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-card h4 {
  font-size: 1.1rem;
  margin-bottom: 3px;
}

.article-card .article-meta {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  color: var(--grey);
}

/* ── AUDIO ── */
.audio-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.audio-card {
  background: var(--off-white);
  border: 1px solid var(--grey-pale);
  border-radius: 8px;
  padding: 36px 24px;
  text-align: center;
  transition: all 0.2s;
}

.audio-card:hover { border-color: var(--black); }
.audio-card h4 { font-size: 1.15rem; margin-bottom: 20px; }
.audio-card audio { width: 100%; height: 44px; }
.audio-card .audio-icon { margin-bottom: 16px; }

/* ── REGISTER ── */
.register-section {
  background: var(--black);
  text-align: center;
  padding: 100px 0;
}

.register-section h2 { color: var(--white); font-size: 2.8rem; margin-bottom: 18px; }
.register-section p { color: var(--grey); font-size: 1.25rem; max-width: 540px; margin: 0 auto 40px; line-height: 1.8; }

/* ── LINKS ── */
.links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 18px;
  border: 1px solid var(--grey-pale);
  border-radius: 8px;
  padding: 22px 26px;
  transition: all 0.2s;
}

.link-card:hover { border-color: var(--black); color: var(--black); }

.link-card .link-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--off-white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.link-card h4 {
  font-size: 1.1rem;
  margin-bottom: 3px;
}

.link-card p {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  color: var(--grey);
}

/* ── FOOTER ── */
footer {
  background: var(--black);
  color: var(--grey);
  padding: 44px 0;
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.95rem;
  border-top: 1px solid #222;
}

footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

footer a { color: var(--grey-mid); font-size: 0.9rem; }
footer a:hover { color: var(--white); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .features-grid,
  .youtube-grid,
  .audio-list { grid-template-columns: 1fr; }
  .articles-grid,
  .links-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .section-title { font-size: 2.2rem; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: rgba(255,255,255,0.98);
    padding: 20px 32px 28px;
    gap: 16px;
    border-bottom: 1px solid var(--grey-pale);
  }
  .nav-toggle { display: block; }
  .hero { padding: 80px 0 0; }
  .page-section { padding: 60px 0; }
  .hero-actions { flex-direction: column; align-items: center; }
  .section-title { font-size: 1.8rem; }
  body { font-size: 1.1rem; }
}