:root {
  --c-bone: #F5F1EA;
  --c-terracotta: #C04E2A;
  --f-serif: 'Playfair Display', serif;
}

html { scroll-behavior: smooth; }
html, body { background: var(--c-bone); }
body { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
::selection { background: #1A1713; color: #F5F1EA; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(26,23,19,.15); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(26,23,19,.3); }

/* Scroll cue animation */
@keyframes scrollCue {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(250%); }
}
.scroll-cue-line { animation: scrollCue 2.2s ease-in-out infinite; }

/* Header — transparent (default) */
#site-header {
  background: transparent;
}
#logo-link { color: #F5F1EA; }
#main-nav { color: rgba(245,241,234,0.8); }
#lang-btn {
  border-color: rgba(245,241,234,0.2);
  color: rgba(245,241,234,0.8);
}
#lang-btn:hover { color: #F5F1EA; border-color: rgba(245,241,234,0.5); }
#header-cta { background: #F5F1EA; color: #1A1713; }
#header-cta:hover { background: #C04E2A; color: #F5F1EA; }
#mobile-menu-btn { color: #F5F1EA; }

/* Header — scrolled state */
#site-header.scrolled {
  background: rgba(245,241,234,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26,23,19,0.08);
}
#site-header.scrolled #logo-link { color: #1A1713; }
#site-header.scrolled #main-nav { color: rgba(26,23,19,0.7); }
#site-header.scrolled #lang-btn {
  border-color: rgba(26,23,19,0.15);
  color: rgba(26,23,19,0.7);
}
#site-header.scrolled #lang-btn:hover { color: #1A1713; border-color: rgba(26,23,19,0.4); }
#site-header.scrolled #header-cta { background: #1A1713; color: #F5F1EA; }
#site-header.scrolled #header-cta:hover { background: #C04E2A; }
#site-header.scrolled #mobile-menu-btn { color: #1A1713; }

/* Experience list buttons */
.exp-btn {
  display: block;
  width: 100%;
  text-align: left;
  border-top: 1px solid rgba(245,241,234,0.15);
  padding: 1.75rem 0;
  cursor: pointer;
  background: none;
  color: rgba(245,241,234,0.45);
  transition: color 0.3s;
}
.exp-btn:hover { color: rgba(245,241,234,0.8); }
.exp-btn.active { color: #F5F1EA; }

.exp-desc {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  transition: max-height 0.35s ease, opacity 0.35s ease, margin-top 0.35s ease;
  font-size: 0.875rem;
  line-height: 1.625;
  max-width: 28rem;
}
.exp-btn.active .exp-desc {
  max-height: 160px;
  opacity: 1;
  margin-top: 0.5rem;
}

.exp-arrow {
  margin-top: 4px;
  transition: transform 0.2s;
  flex-shrink: 0;
}
.exp-btn.active .exp-arrow { transform: translateX(4px); }