/* ============================================
   COHLI BASE STYLES
   Reset, nav, footer, shared components,
   animations, image placeholders
   ============================================ */

/* === RESET === */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--alabaster);
  color: var(--dark);
  line-height: 1.7;
  overflow-x: hidden;
}

/* === NAVIGATION === */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(243,237,228,.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clay);
  transition: var(--ease-slow);
}
nav.scrolled { background: rgba(255,255,255,.97); box-shadow: 0 2px 20px rgba(0,0,0,.06); }
.nav-inner {
  max-width: var(--max-width-wide); margin: 0 auto; padding: 0 24px;
  display: flex; justify-content: space-between; align-items: center; height: 72px;
}
.logo {
  font-family: var(--font-headline); font-size: 1.6rem; font-weight: 900;
  color: var(--terracotta); text-decoration: none; letter-spacing: -.5px;
}
.logo-sub {
  font-size: .7rem; color: var(--stone); font-family: var(--font-body); font-weight: 400;
}
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  text-decoration: none; color: var(--stone); font-size: .9rem;
  font-weight: 500; transition: var(--ease);
}
.nav-links a:hover { color: var(--terracotta); }
.nav-cta {
  background: var(--ember); color: white !important; padding: 10px 24px;
  border-radius: 24px; font-weight: 600 !important; transition: var(--ease) !important;
}
.nav-cta:hover { background: var(--terracotta); transform: translateY(-1px); }

/* Mobile menu */
.mobile-menu { display: none; background: none; border: none; cursor: pointer; z-index: 1001; }
.mobile-menu svg { width: 28px; height: 28px; stroke: var(--stone); }
.mobile-overlay {
  display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
  background: rgba(243,237,228,.98); backdrop-filter: blur(16px);
  z-index: 999; padding: 40px 24px;
}
.mobile-overlay.active { display: flex; flex-direction: column; gap: 8px; }
.mobile-overlay a {
  display: block; padding: 16px 0; font-size: 1.2rem; font-weight: 500;
  color: var(--dark); text-decoration: none; border-bottom: 1px solid var(--clay);
}
.mobile-overlay a:last-child { border-bottom: none; }
.mobile-overlay .nav-cta {
  display: inline-block; margin-top: 16px; text-align: center;
  background: var(--ember); color: white; padding: 14px 32px;
  border-radius: var(--radius-pill); font-weight: 600; font-size: 1.05rem;
}

/* === SCROLL ANIMATIONS === */
.fade-in {
  opacity: 0; transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-delay-1 { transition-delay: .1s; }
.fade-in-delay-2 { transition-delay: .2s; }
.fade-in-delay-3 { transition-delay: .3s; }

/* === IMAGE PLACEHOLDERS === */
.img-placeholder {
  background: var(--clay); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--stone); font-size: .8rem; font-weight: 500;
  text-align: center; overflow: hidden; position: relative;
}
.img-placeholder::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(180,107,82,.12) 0%, rgba(167,180,156,.12) 50%, rgba(210,169,96,.08) 100%);
}
.img-placeholder span { position: relative; z-index: 1; padding: 20px; }

/* === SHARED SECTION PATTERNS === */
.section { padding: var(--section-pad); }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-label {
  font-size: .75rem; text-transform: uppercase; letter-spacing: 2px;
  font-weight: 600; color: var(--terracotta); margin-bottom: 8px;
}
.section-title {
  font-family: var(--font-headline); font-size: 2.2rem; font-weight: 900;
  color: var(--dark); margin-bottom: 16px; line-height: 1.25;
}
.section-desc { font-size: 1.05rem; color: var(--stone); max-width: 640px; margin-bottom: 40px; }

/* === BUTTONS === */
.btn-primary {
  background: var(--ember); color: white; padding: 14px 32px;
  border-radius: var(--radius-pill); font-size: 1rem; font-weight: 600;
  text-decoration: none; transition: var(--ease); border: none;
  cursor: pointer; display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover {
  background: var(--terracotta); transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(180,107,82,.3);
}
.btn-secondary {
  background: transparent; color: var(--stone); padding: 14px 32px;
  border-radius: var(--radius-pill); font-size: 1rem; font-weight: 500;
  text-decoration: none; transition: var(--ease); border: 1.5px solid var(--driftwood); cursor: pointer;
}
.btn-secondary:hover { border-color: var(--terracotta); color: var(--terracotta); }
.btn-white {
  background: white; color: var(--terracotta); padding: 16px 36px;
  border-radius: var(--radius-pill); font-size: 1.05rem; font-weight: 700;
  text-decoration: none; transition: var(--ease); display: inline-block;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(0,0,0,.15); }

/* === FAQ COMPONENT === */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--clay); }
.faq-q {
  width: 100%; padding: 20px 0; background: none; border: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-body); font-size: 1.05rem; font-weight: 600;
  color: var(--dark); text-align: left;
}
.faq-q .icon, .faq-icon {
  font-size: 1.4rem; color: var(--terracotta); transition: var(--ease-slow);
}
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s; }
.faq-a-inner { padding: 0 0 20px; font-size: .92rem; color: var(--stone); line-height: 1.7; }
.faq-item.open .faq-a { max-height: 300px; }
.faq-item.open .icon,
.faq-item.open .faq-icon { transform: rotate(45deg); }

/* === TESTIMONIALS === */
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px,1fr)); gap: 24px; }
.testimonial {
  padding: 32px; border-radius: var(--radius-md); background: var(--alabaster);
  border: 1px solid var(--clay); position: relative;
}
.testimonial::before {
  content: '\201C'; position: absolute; top: 16px; left: 24px;
  font-family: var(--font-quote); font-size: 4rem; color: var(--driftwood); line-height: 1;
}
.testimonial-text {
  font-family: var(--font-quote); font-size: 1.15rem; font-style: italic;
  color: var(--dark); padding-top: 24px; margin-bottom: 16px; line-height: 1.7;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%; background: var(--driftwood);
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; color: white; font-weight: 700;
}
.testimonial-name { font-weight: 600; font-size: .9rem; }
.testimonial-cohort { font-size: .8rem; color: var(--stone); }

/* === FOOTER === */
footer { background: var(--dark); color: rgba(255,255,255,.5); padding: 48px 24px; }
.footer-inner {
  max-width: var(--max-width); margin: 0 auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 32px;
}
.footer-col h4 {
  color: white; font-size: .85rem; text-transform: uppercase;
  letter-spacing: 1px; margin-bottom: 12px;
}
.footer-col a {
  display: block; color: rgba(255,255,255,.5); text-decoration: none;
  font-size: .85rem; margin-bottom: 6px; transition: var(--ease);
}
.footer-col a:hover { color: white; }
.footer-bottom {
  max-width: var(--max-width); margin: 24px auto 0; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1); font-size: .8rem; text-align: center;
}

/* === RESPONSIVE BASE === */
@media (max-width: 900px) {
  .section-title { font-size: 1.8rem; }
  .nav-links { display: none; }
  .mobile-menu { display: block; }
}
@media (max-width: 600px) {
  .section { padding: var(--section-pad-mobile); }
  .testimonial-grid { grid-template-columns: 1fr; }
}