/* ─── PERSPECTIVE Q · DESIGN SYSTEM EDITORIAL MINERAL ─── */

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

:root {
  --preto:   #1A1816;
  --azul:    #2C3E5C;
  --cinza:   #5C6B7A;
  --areia:   #F4F1EA;
  --mineral: #EFECE4;
  --borda:   #C8C4BC;
  --muted:   #888480;
  --subtle:  #999490;
  --texto:   #3A3530;
  --tensao:  #C4341A;

  --fonte: Arial, Helvetica, sans-serif;
  --max: 1100px;
  --max-texto: 720px;
  --radius: 4px;
  --trans: 180ms ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--fonte);
  background: var(--areia);
  color: var(--texto);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ─── TIPOGRAFIA ─── */
h1, h2, h3, h4 { line-height: 1.2; color: var(--preto); }

.label {
  font-size: 11px;
  letter-spacing: 2.5px;
  color: var(--subtle);
  text-transform: uppercase;
}

.lead {
  font-size: 20px;
  font-weight: 300;
  color: var(--azul);
  line-height: 1.6;
}

/* ─── LAYOUT ─── */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 48px;
}

.container--texto {
  max-width: var(--max-texto);
  margin: 0 auto;
  padding: 0 48px;
}

section { padding: 80px 0; }
section + section { border-top: 0.5px solid var(--borda); }

.divider {
  height: 0.5px;
  background: var(--borda);
  margin: 48px 0;
}

/* ─── NAVEGAÇÃO ─── */
.nav {
  background: var(--areia);
  border-bottom: 0.5px solid var(--borda);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 48px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav__logo svg { display: block; flex-shrink: 0; }

.nav__wordmark {
  font-size: 13px;
  font-weight: 700;
  color: var(--preto);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.nav__links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav__links a {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--muted);
  text-decoration: none;
  text-transform: uppercase;
  transition: color var(--trans);
}

.nav__links a:hover,
.nav__links a.ativo { color: var(--preto); }

.nav__cta {
  background: var(--preto);
  color: var(--areia);
  border: none;
  border-radius: var(--radius);
  padding: 9px 18px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: opacity var(--trans);
}

.nav__cta:hover { opacity: 0.82; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--preto);
  transition: var(--trans);
}

.nav__mobile {
  display: none;
  background: var(--areia);
  border-top: 0.5px solid var(--borda);
  padding: 24px 48px;
}

.nav__mobile.aberto { display: block; }

.nav__mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}

.nav__mobile a {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--muted);
  text-decoration: none;
  text-transform: uppercase;
}

/* ─── BOTÕES ─── */
.btn {
  display: inline-block;
  border-radius: var(--radius);
  padding: 12px 24px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: opacity var(--trans);
  font-family: var(--fonte);
  border: none;
}

.btn:hover { opacity: 0.82; }

.btn--primario {
  background: var(--preto);
  color: var(--areia);
}

.btn--secundario {
  background: transparent;
  color: var(--azul);
  border: 1px solid var(--azul);
}

.btn--ghost {
  background: transparent;
  color: var(--muted);
  border: 0.5px solid var(--borda);
}

/* ─── TAGS ─── */
.tag {
  display: inline-block;
  border-radius: var(--radius);
  padding: 4px 10px;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.tag--filled {
  background: var(--azul);
  color: #B8C8DC;
}

.tag--outline {
  border: 0.5px solid var(--borda);
  color: var(--muted);
}

.tag--tensao {
  background: var(--tensao);
  color: #F4E8E4;
}

/* ─── CARD ARTIGO ─── */
.card {
  background: var(--mineral);
  border: 0.5px solid var(--borda);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  transition: border-color var(--trans);
}

.card:hover { border-color: var(--azul); }

.card__tags { display: flex; gap: 6px; flex-wrap: wrap; }

.card__titulo {
  font-size: 22px;
  font-weight: 700;
  color: var(--preto);
  line-height: 1.25;
}

.card__subtitulo {
  font-size: 22px;
  font-weight: 300;
  color: var(--preto);
  line-height: 1.25;
  margin-top: -8px;
}

.card__desc {
  font-size: 14px;
  color: var(--cinza);
  line-height: 1.6;
}

.card__meta {
  font-size: 11px;
  color: var(--subtle);
  letter-spacing: 1px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 0.5px solid var(--borda);
}

/* ─── CARD FATOR Q ─── */
.fator-q {
  border-left: 2px solid var(--azul);
  padding: 20px 28px;
  background: var(--areia);
}

.fator-q__label {
  font-size: 10px;
  letter-spacing: 2.5px;
  color: var(--subtle);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.fator-q__texto {
  font-size: 18px;
  font-weight: 300;
  color: var(--azul);
  line-height: 1.7;
  font-style: italic;
}

/* ─── CARD NEWSLETTER ─── */
.newsletter-card {
  background: var(--preto);
  border-radius: var(--radius);
  padding: 40px 48px;
}

.newsletter-card__label {
  font-size: 10px;
  letter-spacing: 2.5px;
  color: #3A5068;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.newsletter-card__titulo {
  font-size: 22px;
  font-weight: 300;
  color: var(--areia);
  line-height: 1.5;
  margin-bottom: 28px;
  max-width: 480px;
}

.newsletter-card__form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.newsletter-card__input {
  flex: 1;
  min-width: 220px;
  background: transparent;
  border: 0.5px solid #3A3530;
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--areia);
  font-size: 14px;
  font-family: var(--fonte);
  outline: none;
  transition: border-color var(--trans);
}

.newsletter-card__input::placeholder { color: #4A4540; }
.newsletter-card__input:focus { border-color: var(--azul); }

.newsletter-card__btn {
  background: var(--azul);
  color: #B8C8DC;
  border: none;
  border-radius: var(--radius);
  padding: 12px 24px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: var(--fonte);
  transition: opacity var(--trans);
  white-space: nowrap;
}

.newsletter-card__btn:hover { opacity: 0.82; }

/* ─── HERO ─── */
.hero {
  padding: 96px 0 80px;
  border-bottom: 0.5px solid var(--borda);
}

.hero__label { margin-bottom: 24px; }

.hero__titulo {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 300;
  color: var(--preto);
  line-height: 1.1;
  margin-bottom: 8px;
}

.hero__titulo strong {
  font-weight: 700;
}

.hero__titulo .acento { color: var(--azul); }

.hero__lead {
  font-size: 18px;
  font-weight: 300;
  color: var(--cinza);
  line-height: 1.7;
  max-width: 560px;
  margin: 24px 0 40px;
}

.hero__acoes { display: flex; gap: 12px; flex-wrap: wrap; }

/* ─── GRID ─── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

/* ─── SÍMBOLO Q DECORATIVO ─── */
.q-symbol {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

/* ─── FOOTER ─── */
.footer {
  background: var(--mineral);
  border-top: 0.5px solid var(--borda);
  padding: 64px 0 40px;
}

.footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 48px;
}

.footer__top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 0.5px solid var(--borda);
  margin-bottom: 40px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer__wordmark {
  font-size: 13px;
  font-weight: 700;
  color: var(--preto);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.footer__tagline {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 240px;
}

.footer__col-titulo {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--subtle);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__links a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--trans);
}

.footer__links a:hover { color: var(--preto); }

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer__copyright {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.footer__disclaimer {
  font-size: 11px;
  color: var(--subtle);
  line-height: 1.8;
  padding: 20px 24px;
  border: 0.5px solid var(--borda);
  border-radius: var(--radius);
  background: var(--areia);
}

.footer__disclaimer strong {
  color: var(--cinza);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

/* ─── PÁGINA INTERNA ─── */
.page-header {
  padding: 64px 0 48px;
  border-bottom: 0.5px solid var(--borda);
}

.page-header__label { margin-bottom: 16px; }

.page-header__titulo {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 300;
  color: var(--preto);
  line-height: 1.15;
}

.page-header__titulo strong { font-weight: 700; }
.page-header__titulo .acento { color: var(--azul); }

/* ─── ARTIGO ─── */
.artigo-body { font-size: 17px; line-height: 1.8; color: var(--texto); }
.artigo-body p { margin-bottom: 1.5em; }
.artigo-body h2 { font-size: 26px; font-weight: 300; color: var(--preto); margin: 2.5em 0 0.8em; }
.artigo-body h3 { font-size: 20px; font-weight: 700; color: var(--preto); margin: 2em 0 0.6em; }

/* ─── MANIFESTO ─── */
.manifesto-body { font-size: 18px; line-height: 1.9; color: var(--texto); }
.manifesto-body p { margin-bottom: 1.6em; }
.manifesto-body h2 { font-size: 28px; font-weight: 300; color: var(--azul); margin: 3em 0 1em; border-top: 0.5px solid var(--borda); padding-top: 2em; }

/* ─── PLACEHOLDER LENTES ─── */
.placeholder-lentes {
  padding: 80px 0;
  text-align: center;
  border: 0.5px dashed var(--borda);
  border-radius: var(--radius);
}

.placeholder-lentes__titulo {
  font-size: 22px;
  font-weight: 300;
  color: var(--cinza);
  margin-bottom: 8px;
}

.placeholder-lentes__sub {
  font-size: 13px;
  color: var(--subtle);
}

/* ─── RESPONSIVO ─── */
@media (max-width: 768px) {
  .container, .container--texto { padding: 0 24px; }
  .nav__inner { padding: 0 24px; }
  .nav__links, .nav__cta { display: none; }
  .nav__hamburger { display: flex; }
  section { padding: 56px 0; }
  .hero { padding: 64px 0 56px; }
  .footer__top { grid-template-columns: 1fr; gap: 32px; }
  .footer__inner { padding: 0 24px; }
  .newsletter-card { padding: 28px 24px; }
  .newsletter-card__form { flex-direction: column; }
  .newsletter-card__input { min-width: unset; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}