/* ============================================================
   VARIÁVEIS & RESET
   ============================================================ */
:root {
  --bg: #f5f4f0;
  --fg: #111111;
  --muted: #888888;
  --border: #d8d6d0;
  --white: #ffffff;
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --nav-h: 64px;
  --gap: 32px;
  --col: minmax(0, 1fr);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 0.9rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ============================================================
   TIPOGRAFIA
   ============================================================ */
.serif { font-family: var(--serif); }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.1;
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
}

.label {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.muted { color: var(--muted); }

/* ============================================================
   NAV
   ============================================================ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gap);
  background: var(--bg);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: border-color 0.3s;
}

nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--muted);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--fg);
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  margin-top: 8rem;
  padding: 2.5rem var(--gap);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

footer .footer-logo {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

footer nav {
  position: static;
  height: auto;
  padding: 0;
  background: transparent;
  border: none;
}

footer .footer-links {
  display: flex;
  gap: 1.5rem;
}

footer .footer-links a {
  font-size: 0.78rem;
  color: var(--muted);
  transition: color 0.2s;
}

footer .footer-links a:hover {
  color: var(--fg);
}

footer .footer-copy {
  font-size: 0.72rem;
  color: var(--muted);
  width: 100%;
}

/* ============================================================
   LAYOUT UTILITÁRIOS
   ============================================================ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--gap);
}

.page-wrapper {
  padding-top: var(--nav-h);
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
}

/* ============================================================
   ANIMAÇÃO FADE-UP
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   PÁGINA HEADER (título + subtítulo em 2 colunas)
   ============================================================ */
.page-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: end;
  padding: 5rem 0 3rem;
}

.page-header-sub {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 36ch;
  padding-bottom: 0.25rem;
}

/* ============================================================
   SPA — sistema de painéis
   ============================================================ */
body.spa-mode {
  overflow: hidden;
  height: 100vh;
  height: 100dvh;
}

.spa-container {
  position: fixed;
  inset: 0;
  top: 0; /* painéis gerenciam o próprio offset via padding/top */
}

.panel {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.5s cubic-bezier(.4, 0, .2, 1), visibility 0.5s, z-index 0s 0.5s;
  overflow: hidden;
}

.panel.active {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
  z-index: 10;
  transition: opacity 0.5s cubic-bezier(.4, 0, .2, 1), visibility 0.5s, z-index 0s 0s;
}

/* Nav no SPA: sem position fixed, fica dentro do layout normal */
nav.spa-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

/* ============================================================
   RESPONSIVE — mobile
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --gap: 20px;
  }

  .nav-links {
    display: none;
  }

  .page-header {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 3rem 0 2rem;
  }

  footer {
    flex-direction: column;
    align-items: flex-start;
  }
}