/* ============================================
   MICHELLE KIM — PORTFOLIO
   Shared stylesheet
   ============================================ */

:root {
  --black:       #111110;
  --white:       #fafaf7;
  --mid:         #777770;
  --rule:        #e4e2dc;
  --card:        #f4f3ef;
  --green:       #358600;
  --green-dim:   #2a6a00;
  --green-light: #f0f7eb;
  --green-mid:   #c8e0b0;
}

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

/* ── SHARED NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 56px;
  background: rgba(250,250,247,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--rule);
}

.nav-brand {
  font-family: 'Playfair Display', serif;
  font-size: 18px;
  font-weight: 400;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--mid);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}

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

.nav-cta {
  font-size: 12px !important;
  font-weight: 500 !important;
  color: var(--white) !important;
  background: var(--black);
  padding: 8px 20px;
  border-radius: 40px;
  letter-spacing: 0.04em !important;
  transition: background 0.2s !important;
}

.nav-cta:hover { background: var(--green) !important; }

/* ── SHARED ANIMATIONS ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ── SHARED BUTTON ── */
.btn-dark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--black);
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 12px 28px;
  border-radius: 40px;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  border: none;
  cursor: pointer;
}
.btn-dark:hover { background: var(--green); transform: translateY(-1px); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 0 24px; }
  .nav-links li:not(:last-child) { display: none; }
}