/* ══════════════════════════════════════════════════════
   ChaD Event — Shared Stylesheet
   Sister identity: ChaD Event (dark) + Let's Talk (light)
══════════════════════════════════════════════════════ */

/* ── TOKENS ─────────────────────────────────────────── */
:root {
  /* ChaD Event — dark, dramatic */
  --plum:          #1E0F33;
  --deep-plum:     #140A24;
  --mauve:         #9B6EC8;
  --mauve-light:   #C9A8E8;
  --lavender:      #EAD9FA;
  --gold:          #D4A84B;
  --gold-light:    #F0CC80;
  --teal:          #1D7A6E;
  --teal-light:    #2BA898;
  --cream:         #FAF6F0;
  --text-muted:    #B8A0CC;

  /* Program — warmer sister palette */
  --prog-bg:       #F5EEF8;
  --prog-bg-deep:  #EDE0F5;
  --prog-plum:     #2D0F4A;
  --prog-mauve:    #C98FE8;
  --prog-mauve2:   #9B5DC8;
  --prog-warm:     #7A3FA0;
  --prog-gold:     #C4943A;
  --prog-text:     #2A1240;
  --prog-muted:    #7A6090;
  --prog-card:     #FFFFFF;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* ── GRAIN OVERLAY ──────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 9999; opacity: .45;
}

/* ══ NAV ════════════════════════════════════════════════ */
nav {
  position: fixed; top: 0; width: 100%; z-index: 200;
  padding: 1.4rem 4rem;
  display: flex; align-items: center; justify-content: space-between;
}
nav.dark {
  background: linear-gradient(to bottom, rgba(20,10,36,.95) 0%, transparent 100%);
}
nav.light {
  background: rgba(245,238,248,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,143,232,.15);
}
nav.scrolled-dark {
  background: rgba(20,10,36,.96) !important;
  backdrop-filter: blur(10px);
}
nav.scrolled-light {
  box-shadow: 0 2px 20px rgba(45,15,74,.08);
}

.nav-logo {
  font-family: 'Cinzel', serif;
  font-size: .85rem; letter-spacing: .22em;
  text-decoration: none; text-transform: uppercase;
  transition: color .3s;
}
nav.dark  .nav-logo { color: var(--gold); }
nav.light .nav-logo { color: var(--prog-warm); }

.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a {
  font-size: .78rem; letter-spacing: .15em; text-transform: uppercase;
  text-decoration: none; transition: color .3s;
}
nav.dark  .nav-links a { color: var(--mauve-light); }
nav.dark  .nav-links a:hover { color: var(--gold); }
nav.light .nav-links a { color: var(--prog-muted); }
nav.light .nav-links a:hover { color: var(--prog-warm); }

.nav-links a.active {
  font-weight: 500;
}
nav.dark  .nav-links a.active { color: var(--gold); }
nav.light .nav-links a.active { color: var(--prog-warm); }

.nav-program-pill {
  background: linear-gradient(135deg, rgba(201,143,232,.2), rgba(155,93,200,.2));
  border: 1px solid rgba(201,143,232,.4);
  padding: .35rem 1rem; border-radius: 20px;
  color: var(--prog-mauve2) !important;
  transition: all .3s !important;
}
.nav-program-pill:hover {
  background: linear-gradient(135deg, rgba(201,143,232,.35), rgba(155,93,200,.35)) !important;
  color: #fff !important;
}

.nav-hamburger {
  display: none;
  flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: .3rem;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px; border-radius: 2px;
  transition: all .3s;
}
nav.dark  .nav-hamburger span { background: var(--mauve-light); }
nav.light .nav-hamburger span { background: var(--prog-muted); }

/* ══ BUTTONS ════════════════════════════════════════════ */
.btn-primary {
  padding: .85rem 2.2rem;
  background: linear-gradient(135deg, var(--mauve), var(--teal));
  color: #fff; text-decoration: none;
  font-size: .8rem; letter-spacing: .15em; text-transform: uppercase;
  border-radius: 30px; transition: transform .3s, box-shadow .3s;
  box-shadow: 0 4px 24px rgba(155,110,200,.3);
  border: none; cursor: pointer; font-family: 'DM Sans', sans-serif;
  display: inline-block;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(155,110,200,.5); }

.btn-ghost {
  padding: .85rem 2.2rem;
  border: 1px solid rgba(212,168,75,.5);
  color: var(--gold-light); text-decoration: none;
  font-size: .8rem; letter-spacing: .15em; text-transform: uppercase;
  border-radius: 30px; transition: all .3s;
  background: transparent; cursor: pointer;
  font-family: 'DM Sans', sans-serif; display: inline-block;
}
.btn-ghost:hover { background: rgba(212,168,75,.1); border-color: var(--gold); }

.btn-prog {
  padding: .9rem 2.2rem;
  background: linear-gradient(135deg, var(--prog-mauve2), var(--prog-warm));
  color: #fff; text-decoration: none;
  font-size: .8rem; letter-spacing: .15em; text-transform: uppercase;
  border-radius: 30px; transition: transform .3s, box-shadow .3s;
  box-shadow: 0 4px 20px rgba(155,93,200,.3);
  border: none; cursor: pointer; font-family: 'DM Sans', sans-serif;
  display: inline-block;
}
.btn-prog:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(155,93,200,.5); }

.btn-prog-ghost {
  padding: .9rem 2.2rem;
  border: 1.5px solid rgba(155,93,200,.4);
  color: var(--prog-warm); text-decoration: none;
  font-size: .8rem; letter-spacing: .15em; text-transform: uppercase;
  border-radius: 30px; transition: all .3s; background: transparent;
  cursor: pointer; font-family: 'DM Sans', sans-serif; display: inline-block;
}
.btn-prog-ghost:hover { background: rgba(155,93,200,.08); border-color: var(--prog-mauve2); }

/* ══ SHARED LABELS & TITLES ═════════════════════════════ */
.section-label {
  font-family: 'Cinzel', serif;
  font-size: .65rem; letter-spacing: .35em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1rem; display: block;
}
.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300; line-height: 1.1; color: var(--cream);
}
.section-title em { font-style: italic; color: var(--mauve-light); }
.bilingual { font-size: .82rem; color: var(--text-muted); font-style: italic; margin-top: .3rem; }

.prog-section-label {
  font-family: 'Cinzel', serif;
  font-size: .62rem; letter-spacing: .35em; text-transform: uppercase;
  color: var(--prog-gold); margin-bottom: .8rem; display: block;
}
.prog-section-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300; line-height: 1.1; color: var(--prog-plum);
}
.prog-section-title em { font-style: italic; color: var(--prog-mauve2); }

/* ══ FOOTER ═════════════════════════════════════════════ */
.site-footer {
  padding: 2.5rem 4rem;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-dark {
  background: var(--deep-plum);
  border-top: 1px solid rgba(155,110,200,.15);
}
.footer-light {
  background: var(--prog-bg-deep);
  border-top: 1px solid rgba(201,143,232,.2);
}
.site-footer .f-logo {
  font-family: 'Cinzel', serif;
  font-size: .78rem; letter-spacing: .2em;
  text-transform: uppercase; text-decoration: none;
}
.footer-dark .f-logo { color: var(--gold); }
.footer-light .f-logo { color: var(--prog-warm); }
.site-footer p { font-size: .72rem; letter-spacing: .05em; }
.footer-dark p { color: var(--text-muted); }
.footer-light p { color: var(--prog-muted); }
.site-footer .f-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.site-footer .f-links a { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; text-decoration: none; transition: color .3s; }
.footer-dark .f-links a { color: var(--text-muted); }
.footer-dark .f-links a:hover { color: var(--gold); }
.footer-light .f-links a { color: var(--prog-muted); }
.footer-light .f-links a:hover { color: var(--prog-warm); }

/* ══ PAGE TRANSITIONS ═══════════════════════════════════ */
.page-enter { animation: pageIn .5s ease forwards; }
@keyframes pageIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

/* ══ SCROLL REVEAL UTILITY ══════════════════════════════ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ══ ANIMATIONS ═════════════════════════════════════════ */
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes drift  { from { transform: translate(0,0) scale(1); }       to   { transform: translate(30px,20px) scale(1.08); } }
@keyframes pulse  { 0%, 100% { opacity: .5; transform: scale(1); }     50%  { opacity: 1; transform: scale(1.3); } }
@keyframes scrollLine { 0%, 100% { opacity: .3; transform: scaleY(1); } 50% { opacity: 1; transform: scaleY(1.2); } }

/* ══ RESPONSIVE ═════════════════════════════════════════ */
@media (max-width: 900px) {
  nav { padding: 1.2rem 2rem; }
  .nav-links { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; flex-direction: column; align-items: center; justify-content: center; gap: 2rem; z-index: 199; }
  nav.dark  .nav-links.open { display: flex; background: rgba(20,10,36,.97); }
  nav.light .nav-links.open { display: flex; background: rgba(245,238,248,.98); }
  .nav-hamburger { display: flex; z-index: 201; }
  .nav-links a { font-size: 1.1rem; }
  .site-footer { flex-direction: column; text-align: center; padding: 2rem; }
}