:root {
  --deep-navy: #071739;
  --muted-blue: #4B6382;
  --light-blue: #A4B5C4;
  --very-light: #CDD5DB;
  --warm-brown: #A68868;
  --light-beige: #E3C39D;
  --bg-body: var(--very-light);
  --text-dark: var(--deep-navy);
  --text-muted: var(--muted-blue);
  --border-color: var(--light-blue);
  --card-bg: rgba(255, 255, 255, 0.92);
  --btn-primary: var(--warm-brown);
  --btn-primary-hover: #8f6e4c;
  --link-color: var(--muted-blue);
  --link-hover: var(--warm-brown);
}

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

body {
  font-family: 'Inter', 'Noto Sans Devanagari', sans-serif;
  background: linear-gradient(145deg, var(--bg-body) 0%, #E3E8ED 100%);
  color: var(--text-dark);
  scroll-behavior: smooth;
  line-height: 1.5;
}
.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.sacred-glow {
  background: radial-gradient(circle at 10% 20%, rgba(166,136,104,0.08) 0%, rgba(75,99,130,0.05) 100%);
}
.card-glass {
  background: var(--card-bg);
  backdrop-filter: blur(2px);
  border: 1px solid var(--border-color);
  border-radius: 2rem;
  box-shadow: 0 12px 28px -8px rgba(7,23,57,0.08);
  transition: all 0.25s ease;
}
.card-glass:hover {
  border-color: var(--warm-brown);
  box-shadow: 0 20px 30px -12px rgba(7,23,57,0.15);
  transform: translateY(-3px);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 2rem;
  border-radius: 3rem;
  font-weight: 600;
  font-size: 1rem;
  transition: 0.2s;
  cursor: pointer;
  border: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--btn-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(166,136,104,0.3);
}
.btn-primary:hover {
  background: var(--btn-primary-hover);
  transform: scale(1.02);
  box-shadow: 0 8px 20px rgba(166,136,104,0.4);
}
.btn-outline {
  border: 1.5px solid var(--warm-brown);
  color: var(--warm-brown);
  background: transparent;
}
.btn-outline:hover {
  background: var(--light-beige);
  border-color: var(--btn-primary-hover);
  color: var(--btn-primary-hover);
}
.section-badge {
  background: var(--light-beige);
  padding: 0.3rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--deep-navy);
}
.pillar-icon {
  background: var(--light-beige);
  width: 56px;
  height: 56px;
  border-radius: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--warm-brown);
  margin-bottom: 1.2rem;
}
.definitions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.def-card { padding: 1.8rem 1.5rem; }
.def-card h3 { font-size: 1.6rem; font-weight: 600; color: var(--warm-brown); }
.def-sub { font-size: 1.1rem; font-weight: 500; margin: 0.5rem 0 0.75rem; color: var(--muted-blue); }
.churning-card { padding: 2rem; text-align: center; background: rgba(255,255,255,0.85); }
.churning-card i { font-size: 2.2rem; color: var(--warm-brown); margin-bottom: 1rem; }
.churning-card h3 { font-size: 1.8rem; font-weight: 600; color: var(--deep-navy); }
.churning-card p { max-width: 750px; margin: 1rem auto 0; font-size: 1.05rem; color: var(--text-muted); }
.features-flex { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; }
.feature-item { background: white; border-radius: 1.5rem; padding: 1rem 1.8rem; width: 230px; text-align: center; box-shadow: 0 5px 12px rgba(0,0,0,0.03); }
.feature-item i { font-size: 2rem; color: var(--warm-brown); }
.feature-item p { margin-top: 0.5rem; font-weight: 500; color: var(--text-dark); }
hr { border: none; height: 1px; background: linear-gradient(90deg, transparent, var(--light-blue), transparent); margin: 2rem 0; }

/* Scientific analysis cards */
.analysis-card {
  background: #ffffff;
  border-radius: 1.5rem;
  padding: 1.5rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(7,23,57,0.05);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.analysis-card:hover { transform: translateY(-4px); box-shadow: 0 20px 30px -12px rgba(7,23,57,0.1); border-color: var(--warm-brown); }
.analysis-card .card-tag { background: var(--light-beige); padding: 0.2rem 0.8rem; border-radius: 20px; font-size: 0.7rem; font-weight: 600; color: var(--warm-brown); width: fit-content; margin-bottom: 1rem; }
.analysis-card h3 { font-size: 1.4rem; font-weight: 600; color: var(--deep-navy); margin-bottom: 0.75rem; }
.analysis-card .tradition-category { font-size: 0.75rem; color: var(--muted-blue); margin-bottom: 0.6rem; font-weight: 500; text-transform: uppercase; }
.analysis-card p { color: var(--text-muted); line-height: 1.5; font-size: 0.95rem; flex-grow: 1; margin-bottom: 1rem; }
.analysis-card .read-more-btn { background: none; border: none; color: var(--warm-brown); font-weight: 600; padding: 0; cursor: pointer; text-align: left; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.4rem; transition: gap 0.2s; }
.analysis-card .read-more-btn:hover { gap: 0.6rem; color: var(--btn-primary-hover); }
.scientific-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }

/* Forum */
.forum-topics-list { display: flex; flex-direction: column; gap: 1.2rem; margin-top: 1rem; }
.forum-topic-card { background: #ffffff; border-radius: 1.2rem; padding: 1.2rem; cursor: pointer; transition: all 0.2s ease; border: 1px solid var(--border-color); }
.forum-topic-card:hover { background: var(--light-beige); transform: translateX(6px); border-color: var(--warm-brown); }
.forum-topic-card h3 { margin: 0 0 0.5rem 0; color: var(--warm-brown); }
.forum-topic-card p { color: var(--text-muted); margin: 0 0 0.5rem 0; }
.forum-topic-card small { color: var(--muted-blue); font-size: 0.8rem; }
.forum-reply-card { background: var(--light-beige); border-radius: 1rem; padding: 1rem; margin-bottom: 1rem; border-left: 4px solid var(--warm-brown); }

/* Lab */
.lab-experiments-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.lab-card { padding: 1.5rem; text-align: center; }
.breathing-circle { transition: transform 0.1s ease; cursor: pointer; background: var(--light-beige); color: var(--warm-brown); }

/* Modal */
.modal { display: none; position: fixed; top:0; left:0; width:100%; height:100%; background-color: rgba(7,23,57,0.7); backdrop-filter: blur(8px); align-items: center; justify-content: center; z-index: 1000; }
.modal-card { background: #fffcf5; width: 90%; max-width: 700px; border-radius: 2rem; padding: 2rem; box-shadow: 0 30px 40px rgba(7,23,57,0.2); border: 1px solid var(--light-beige); text-align: center; }
.modal-card h3 { font-size: 1.7rem; font-weight: 600; color: var(--warm-brown); margin-bottom: 1rem; }
.modal-card p { color: var(--text-dark); margin: 1rem 0; line-height: 1.5; }
.close-modal { background: var(--light-beige); border: none; padding: 0.6rem 1.5rem; border-radius: 3rem; margin-top: 1rem; font-weight: 500; cursor: pointer; transition: 0.2s; color: var(--deep-navy); }
.close-modal:hover { background: var(--warm-brown); color: white; }

/* Footer */
footer { background: linear-gradient(135deg, #FCF9F2 0%, #F4EFE6 100%); border-top: 1px solid var(--light-blue); padding: 3rem 0 1.5rem; margin-top: 4rem; position: relative; }
footer::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--warm-brown), var(--muted-blue), var(--light-beige)); }
.footer-links-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 2.5rem; margin-bottom: 2rem; }
.footer-col h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1.2rem; color: var(--deep-navy); position: relative; display: inline-block; }
.footer-col h4::after { content: ''; position: absolute; bottom: -6px; left: 0; width: 32px; height: 2px; background: var(--warm-brown); border-radius: 2px; }
.footer-col a { display: flex; align-items: center; gap: 0.6rem; color: var(--muted-blue); text-decoration: none; margin-bottom: 0.8rem; font-size: 0.9rem; transition: all 0.2s ease; }
.footer-col a i { width: 20px; font-size: 0.85rem; color: var(--warm-brown); transition: transform 0.2s; }
.footer-col a:hover { color: var(--warm-brown); transform: translateX(4px); }
.footer-col a:hover i { transform: translateX(2px); }
.footer-copyright { border-top: 1px solid var(--border-color); margin-top: 2rem; padding-top: 1.8rem; text-align: center; font-size: 0.85rem; color: var(--text-muted); display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
.footer-copyright i { margin-right: 0.3rem; color: var(--warm-brown); }
.footer-tagline { font-size: 0.75rem; text-align: center; margin-top: 1rem; color: var(--muted-blue); letter-spacing: 0.3px; }

@media (max-width: 700px) {
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .container { padding: 0 1.2rem; }
  .pillar-icon { width: 48px; height: 48px; font-size: 1.5rem; }
  .footer-links-grid { gap: 1.8rem; text-align: center; }
  .footer-col h4::after { left: 50%; transform: translateX(-50%); }
  .footer-col a { justify-content: center; }
  .footer-copyright { flex-direction: column; gap: 0.5rem; }
}