/* ==========================================================================
   Base reset, typography, structural layout, header/nav/footer
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-espresso);
  background: var(--color-ivory);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 var(--space-4);
  color: var(--color-espresso);
}
h1 { font-size: clamp(2.6rem, 5vw, 4.4rem); font-weight: 400; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.9rem, 3.2vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }
p { margin: 0 0 var(--space-4); }
.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.gradient-text {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--color-espresso);
  color: var(--color-white); padding: var(--space-3) var(--space-5); z-index: 999;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.container--narrow { max-width: var(--container-narrow); }

main { display: block; }
section { position: relative; padding: var(--space-9) 0; }
section.section--tight { padding: var(--space-7) 0; }
.section--dark {
  background: var(--gradient-dark-radial);
  color: var(--color-ivory);
}
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--color-white); }
.section--gradient { background: var(--gradient-hero-soft); }
.section--mesh { position: relative; background: var(--color-ivory); }
.section--mesh::before {
  content: ''; position: absolute; inset: 0; background: var(--gradient-mesh);
  opacity: 0.7; pointer-events: none;
}
.section--mesh > * { position: relative; z-index: 1; }

.section-head { max-width: 640px; margin-bottom: var(--space-8); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--color-espresso-soft); font-size: 1.05rem; }

/* ----- Header / Nav ----- */
.site-header {
  position: sticky; top: 0; z-index: var(--z-header);
  width: 100%;
  transition: background var(--transition-base), box-shadow var(--transition-base), padding var(--transition-base);
  background: rgba(251, 247, 242, 0.0);
}
.site-header.is-solid {
  background: rgba(251, 247, 242, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--color-line);
}
.site-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-6);
  min-height: var(--header-height);
}
.site-header__logo img { width: 168px; height: auto; }

.site-nav ul { display: flex; gap: var(--space-5); align-items: center; }
.site-nav a {
  font-size: 0.92rem; font-weight: 500; color: var(--color-espresso-soft);
  position: relative; padding: var(--space-2) 0; white-space: nowrap;
}
.site-nav a::after {
  content: ''; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--gradient-gold); transition: width var(--transition-fast);
}
.site-nav a:hover::after, .site-nav a.active::after { width: 100%; }
.site-nav a.active { color: var(--color-espresso); }

.site-header__actions { display: flex; align-items: center; gap: var(--space-4); }
.site-header__cta { white-space: nowrap; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 42px; height: 42px; background: none; border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}
.nav-toggle span { display: block; height: 2px; width: 20px; margin: 0 auto; background: var(--color-espresso); transition: transform var(--transition-fast), opacity var(--transition-fast); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav-mobile {
  display: none; position: fixed; inset: var(--header-height) 0 0 0; z-index: var(--z-mobile-nav);
  background: var(--color-ivory); overflow-y: auto;
  transform: translateY(-8px); opacity: 0; pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}
.site-nav-mobile.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.site-nav-mobile ul { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-2); }
.site-nav-mobile a { display: block; padding: var(--space-4) 0; font-family: var(--font-serif); font-size: 1.5rem; border-bottom: 1px solid var(--color-line); }
.site-nav-mobile .btn { margin-top: var(--space-5); text-align: center; }

.a11y-toggle {
  display: flex; align-items: center; gap: var(--space-2); background: none; border: 1px solid var(--color-line);
  border-radius: var(--radius-pill); padding: var(--space-2) var(--space-4); font-size: 0.8rem; color: var(--color-espresso-soft);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.a11y-toggle[aria-pressed="true"] { background: var(--color-espresso); color: var(--color-white); }
.a11y-toggle__label { display: none; }

@media (min-width: 1000px) {
  .a11y-toggle__label { display: inline; }
}

@media (max-width: 999px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
  .site-nav-mobile { display: block; }
  /* Extra specificity (vs. the equal-specificity, later-loaded .btn display
     rule in components.css) so this hide actually wins the cascade. */
  .site-header__actions .site-header__cta { display: none; }
}

/* ----- Footer ----- */
.site-footer {
  background: var(--gradient-dark-radial);
  color: var(--color-ivory-deep);
  padding: var(--space-9) 0 var(--space-6);
  margin-top: var(--space-9);
}
.site-footer a { color: var(--color-ivory-deep); }
.site-footer a:hover { color: var(--color-gold-light); }
.site-footer__inner {
  max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-6);
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-8);
}
.site-footer__brand img { width: 150px; margin-bottom: var(--space-4); filter: brightness(0) invert(1); opacity: 0.92; }
.site-footer__brand p { color: var(--color-taupe-light); max-width: 30ch; }
.site-footer__socials { display: flex; gap: var(--space-3); margin-top: var(--space-4); }
.site-footer__socials a {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.18); border-radius: 50%; transition: border-color var(--transition-fast);
}
.site-footer__socials a:hover { border-color: var(--color-gold-light); }
.site-footer__col h2 { font-family: var(--font-sans); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-gold-light); margin-bottom: var(--space-4); }
.site-footer__col ul { display: flex; flex-direction: column; gap: var(--space-3); font-size: 0.92rem; }
.site-footer__col address { font-style: normal; font-size: 0.92rem; line-height: 1.9; color: var(--color-taupe-light); }
.site-footer__legal {
  max-width: var(--container-max); margin: var(--space-8) auto 0; padding: var(--space-6) var(--space-6) 0;
  border-top: 1px solid rgba(255,255,255,0.12); font-size: 0.78rem; color: var(--color-taupe-light); display: flex; flex-direction: column; gap: var(--space-2);
}

@media (max-width: 860px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}

/* ----- Mobile sticky CTA bar ----- */
.mobile-cta-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: var(--z-cta-bar);
  padding: var(--space-3) var(--space-4); background: rgba(251, 247, 242, 0.95); backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-line); padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
}
@media (max-width: 720px) {
  .mobile-cta-bar { display: block; }
  body { padding-bottom: 74px; }
}

/* ----- Back to top ----- */
.back-to-top {
  position: fixed; right: var(--space-5); bottom: var(--space-6); z-index: var(--z-float);
  width: 46px; height: 46px; border-radius: 50%; border: none;
  background: var(--color-espresso); color: var(--color-white); font-size: 1.1rem;
  box-shadow: var(--shadow-soft); opacity: 0; transform: translateY(10px); transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.back-to-top.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 720px) { .back-to-top { bottom: 88px; } }

/* ----- WhatsApp float ----- */
.whatsapp-float {
  position: fixed; left: var(--space-5); bottom: var(--space-6); z-index: var(--z-float);
  width: 54px; height: 54px; border-radius: 50%; background: #25D366; color: #fff;
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-soft);
  transition: transform var(--transition-fast);
}
.whatsapp-float:hover { transform: scale(1.06); }
@media (max-width: 720px) { .whatsapp-float { bottom: 88px; width: 48px; height: 48px; } }

@media (max-width: 720px) {
  .container { padding: 0 var(--space-5); }
  section { padding: var(--space-8) 0; }
}