/* ─── ARTINTROSPECT — SHARED STYLESHEET ─────────────── */
:root {
  --bg:           #F4EFE6;
  --bg-dark:      #0D0B09;
  --text:         #1A1614;
  --text-light:   #7A726A;
  --accent:       #7A1F1F;
  --accent-hover: #9B2C2C;
  --border:       #DDD5C8;
  --border-dark:  rgba(255,255,255,0.09);
  --white:        #FDFAF5;
  --font-serif:   'Playfair Display', Georgia, serif;
  --font-sans:    'Inter', system-ui, sans-serif;
}

/* ─── RESET ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ─── TYPOGRAPHY ─────────────────────────────────────── */
.serif { font-family: var(--font-serif); }
.t-96  { font-size: clamp(52px, 9vw, 96px);  line-height: 0.95; }
.t-72  { font-size: clamp(44px, 7vw, 72px);  line-height: 1.0; }
.t-56  { font-size: clamp(36px, 5vw, 56px);  line-height: 1.05; }
.t-40  { font-size: clamp(28px, 4vw, 40px);  line-height: 1.15; }
.t-28  { font-size: clamp(20px, 3vw, 28px);  line-height: 1.3; }
.t-20  { font-size: clamp(17px, 2vw, 20px);  line-height: 1.5; }
.italic { font-style: italic; }

/* ─── LAYOUT ─────────────────────────────────────────── */
.container   { max-width: 1280px; margin: 0 auto; padding: 0 40px; }
.container-sm{ max-width: 880px;  margin: 0 auto; padding: 0 40px; }
section { padding: 120px 0; }
@media (max-width: 768px) {
  .container, .container-sm { padding: 0 24px; }
  section { padding: 72px 0; }
}

/* ─── NAVIGATION ─────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 24px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s, padding 0.4s;
}
nav.scrolled {
  background: rgba(244,239,230,0.95);
  backdrop-filter: blur(12px);
  padding: 15px 40px;
  border-bottom: 1px solid var(--border);
}
nav.dark { background: transparent; }
nav.dark.scrolled {
  background: rgba(13,11,9,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dark);
}
nav.light-nav { background: rgba(244,239,230,0.97); border-bottom: 1px solid var(--border); padding: 18px 40px; }

.nav-logo { color: var(--white); transition: color 0.3s; }
nav.scrolled .nav-logo,
nav.light-nav .nav-logo { color: var(--text); }
.nav-logo svg { height: 28px; width: auto; }

.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--white);
  opacity: 0.72;
  transition: opacity 0.2s;
}
.nav-links a.active { opacity: 1; }
.nav-links a:hover  { opacity: 1; }
nav.scrolled .nav-links a,
nav.light-nav .nav-links a { color: var(--text); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span { display: block; width: 22px; height: 1px; background: var(--white); transition: background 0.3s; }
nav.scrolled .nav-toggle span,
nav.light-nav .nav-toggle span { background: var(--text); }

@media (max-width: 768px) {
  nav { padding: 20px 24px; }
  nav.scrolled, nav.light-nav { padding: 14px 24px; }
  .nav-links {
    position: fixed; inset: 0;
    background: var(--bg-dark);
    flex-direction: column; align-items: center; justify-content: center;
    gap: 28px; transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
    z-index: 200;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 20px; color: var(--white) !important; opacity: 0.85; }
  .nav-links a.active { opacity: 1; }
  .nav-toggle { display: flex; z-index: 201; }
}

/* ─── PAGE HERO (interior pages) ─────────────────────── */
.page-hero {
  background: var(--bg-dark);
  padding: 160px 0 100px;
  color: var(--white);
}
.page-hero-label {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(253,250,245,0.4);
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 20px;
}
.page-hero-label::before {
  content: ''; display: block; width: 24px; height: 1px;
  background: rgba(253,250,245,0.25);
}

/* ─── SECTION LABELS ─────────────────────────────────── */
.section-label {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--text-light);
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 18px;
}
.section-label::before { content: ''; display: block; width: 22px; height: 1px; background: var(--text-light); }
.section-label.white { color: rgba(253,250,245,0.42); }
.section-label.white::before { background: rgba(253,250,245,0.25); }

/* ─── BUTTONS ────────────────────────────────────────── */
.btn-solid {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; letter-spacing: 0.08em;
  background: var(--accent); color: var(--white);
  padding: 14px 32px; transition: background 0.2s;
}
.btn-solid:hover { background: var(--accent-hover); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; letter-spacing: 0.08em;
  color: var(--white); border: 1px solid rgba(253,250,245,0.28);
  padding: 14px 32px; transition: border-color 0.2s, background 0.2s;
}
.btn-outline:hover { border-color: var(--white); background: rgba(253,250,245,0.06); }

.btn-outline-dark {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; letter-spacing: 0.08em;
  color: var(--text); border: 1px solid var(--border);
  padding: 14px 32px; transition: border-color 0.2s;
}
.btn-outline-dark:hover { border-color: var(--text); }

/* ─── DIVIDER ────────────────────────────────────────── */
.divider       { width: 48px; height: 1px; background: var(--border);       margin: 32px 0; }
.divider.white { width: 48px; height: 1px; background: rgba(255,255,255,0.14); margin: 32px 0; }

/* ─── FOOTER ─────────────────────────────────────────── */
footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-dark);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.footer-copy { font-size: 13px; color: rgba(253,250,245,0.28); }
.footer-links { display: flex; gap: 28px; list-style: none; }
.footer-links a { font-size: 12px; letter-spacing: 0.07em; color: rgba(253,250,245,0.28); transition: color 0.2s; }
.footer-links a:hover { color: rgba(253,250,245,0.7); }

/* ─── WHATSAPP FAB ───────────────────────────────────── */
.whatsapp-fab {
  position: fixed; bottom: 28px; right: 28px; z-index: 99;
  width: 52px; height: 52px; background: #25D366; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.32);
  transition: transform 0.2s, box-shadow 0.2s;
}
.whatsapp-fab:hover { transform: scale(1.08); box-shadow: 0 6px 28px rgba(37,211,102,0.5); }
.whatsapp-fab svg { width: 26px; height: 26px; }

/* ─── REVEAL ANIMATIONS ──────────────────────────────── */
.reveal       { opacity: 0; transform: translateY(30px); }
.reveal-left  { opacity: 0; transform: translateX(-30px); }
.reveal-right { opacity: 0; transform: translateX(30px); }