/* ============================================================
   Alkimia · nav.css — mobile-first
   Navegación superior y sticky CTA flotante
   ============================================================ */

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: absolute;
  top: 0; left: 0; right: 0;
  padding: 20px 0;
  z-index: 20;
}
@media (min-width: 960px) {
  .nav { padding: 28px 0; }
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-mark {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--serif-display);
  font-weight: 600;
  letter-spacing: 0.22em;
  font-size: 13px;
  color: var(--bone);
  text-decoration: none;
}
.nav-mark img { width: 30px; height: 30px; }
@media (min-width: 960px) {
  .nav-mark     { gap: 14px; font-size: 14px; }
  .nav-mark img { width: 36px; height: 36px; }
}
.nav-meta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sage);
}
@media (min-width: 960px) {
  .nav-meta { font-size: 11px; letter-spacing: 0.18em; }
}
.nav-meta strong { color: var(--gold); font-weight: 500; }

/* ── Sticky CTA — base mobile ─────────────────────────────── */
.sticky-cta {
  position: fixed;
  left: 50%;
  bottom: 12px;
  transform: translate(-50%, 32px);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease, transform .35s cubic-bezier(.2,.7,.2,1);
  width: calc(100vw - 16px);
}
.sticky-cta.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}
.sticky-cta .sc-inner {
  background: var(--bottle);
  border: 1px solid var(--gold);
  position: relative;
  padding: 10px 10px 10px 14px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  border-radius: 6px;
  box-shadow:
    0 1px 0 color-mix(in srgb, var(--gold) 35%, transparent) inset,
    0 18px 40px rgba(0,0,0,0.45);
}
.sticky-cta .sc-inner::before {
  content: ""; position: absolute; inset: 4px;
  border: 1px solid color-mix(in srgb, var(--gold) 35%, transparent);
  border-radius: 4px;
  pointer-events: none;
}
.sticky-cta .sc-mark {
  display: flex; align-items: center; gap: 12px;
  position: relative; z-index: 1;
}
.sticky-cta .sc-mark img { width: 32px; height: 32px; }
.sticky-cta .sc-eyebrow {
  display: block;
  font-family: var(--serif-display);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bone);
  line-height: 1.1;
}
.sticky-cta .sc-sub  { display: none; }
.sticky-cta .sc-price { display: none; }
.sticky-cta .sc-btn {
  position: relative; z-index: 1;
  padding: 11px 16px;
  font-size: 11px;
}

/* ── Sticky CTA — desktop ─────────────────────────────────── */
@media (min-width: 720px) {
  .sticky-cta {
    bottom: 24px;
    width: min(calc(100vw - 32px), 720px);
  }
  .sticky-cta .sc-inner {
    grid-template-columns: 1fr auto auto;
    gap: 24px;
    padding: 12px 12px 12px 20px;
  }
  .sticky-cta .sc-mark img { width: 40px; height: 40px; }
  .sticky-cta .sc-eyebrow  { font-size: 13px; letter-spacing: 0.22em; }
  .sticky-cta .sc-sub {
    display: block;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--gold);
    text-transform: uppercase;
    margin-top: 4px;
  }
  .sticky-cta .sc-price {
    display: flex; align-items: baseline; gap: 6px;
    font-family: var(--serif-display);
    color: var(--gold);
    border-left: 1px solid var(--moss);
    padding-left: 24px;
    position: relative; z-index: 1;
  }
  .sticky-cta .sc-price .n {
    font-size: 36px; line-height: 1; font-weight: 600; letter-spacing: -0.005em;
  }
  .sticky-cta .sc-price .u {
    font-family: var(--mono); font-size: 11px;
    color: var(--gold-soft); letter-spacing: 0.16em;
  }
  .sticky-cta .sc-btn { padding: 14px 22px; font-size: 12px; }
}