/* ================================================================
   RANGEL RADAELI ADVOCACIA — style.css v2
   Cores e tipografia conforme Manual de Identidade Visual oficial

   Paleta oficial:
   #081b1d  Verde Petróleo (cor escura principal)
   #b89161  Dourado/Bege (cor de destaque)
   #d8bfa3  Bege Paris (cor clara de apoio)
   #f9ecdc  Bege muito claro (backgrounds)
   #ffffff  Branco

   Tipografia oficial:
   Cinzel      → equivalente gratuita da Trajan Pro (títulos)
   Montserrat  → fonte secundária oficial (corpo, UI)
================================================================ */

/* ---------------------------------------------------------------
   1. RESET & BASE
--------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-white);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
ul, ol   { list-style: none; }
a        { text-decoration: none; color: inherit; }
button   { cursor: pointer; border: none; background: none; font: inherit; }

/* ---------------------------------------------------------------
   2. VARIÁVEIS — Paleta e tipografia oficiais do Manual
--------------------------------------------------------------- */
:root {
  /* Cores oficiais (Manual de Identidade Visual) */
  --color-petroleo:     #081b1d;   /* Verde Petróleo */
  --color-petroleo-mid: #0f2d30;   /* Petróleo médio */
  --color-gold:         #b89161;   /* Dourado/Bege */
  --color-gold-dark:    #9a7848;   /* Dourado escuro – hover */
  --color-gold-light:   #d8bfa3;   /* Bege Paris */
  --color-cream:        #f9ecdc;   /* Bege muito claro */
  --color-cream-mid:    #f2e4ce;   /* Bege ligeiramente mais escuro */
  --color-white:        #ffffff;
  --color-text:         #081b1d;
  --color-text-muted:   #4a5a5b;
  --color-border:       #ddd4c4;

  /* Semânticas */
  --color-bg:           var(--color-white);
  --color-bg-alt:       var(--color-cream);
  --color-accent:       var(--color-gold);
  --color-accent-hover: var(--color-gold-dark);
  --color-dark:         var(--color-petroleo);

  /* Tipografia oficial */
  --font-title: 'Cinzel', 'Trajan Pro', Georgia, serif;  /* equivalente Trajan Pro */
  --font-body:  'Montserrat', system-ui, sans-serif;      /* fonte secundária oficial */

  /* Espaçamentos */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  7rem;

  /* Layout */
  --radius-sm:  3px;
  --radius-md:  6px;
  --radius-lg:  10px;
  --header-h:   76px;
  --transition: 0.25s ease;
}

/* ---------------------------------------------------------------
   3. TIPOGRAFIA GLOBAL
--------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  line-height: 1.2;
  color: var(--color-petroleo);
}

p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  font-size: 0.95rem;
}

p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------
   4. UTILITÁRIOS
--------------------------------------------------------------- */

/* Tag eyebrow */
.section-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.5rem;
}

.section-tag--light { color: var(--color-gold-light); }

/* Títulos de seção */
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
}

.section-title--center { text-align: center; }
.section-title--light  { color: var(--color-white); }

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-gold);
  color: var(--color-petroleo);
  border: 1px solid var(--color-gold);
}

.btn--primary:hover {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.5);
}

.btn--ghost:hover {
  background-color: rgba(255,255,255,0.08);
  border-color: var(--color-white);
}

.btn--full { width: 100%; }
.btn:active { transform: scale(0.98); }

/* ---------------------------------------------------------------
   5. CONTAINER
--------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* ---------------------------------------------------------------
   6. HEADER
--------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.header--scrolled {
  box-shadow: 0 2px 20px rgba(8,27,29,0.1);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

/* Logo */
.logo { display: flex; align-items: center; }

.logo__img { height: 52px; width: auto; }

.logo__fallback {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo__name {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-petroleo);
  letter-spacing: 0.05em;
}

.logo__sub {
  font-family: var(--font-body);
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--color-gold);
}

/* Nav desktop */
.nav__list {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.nav__link {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-petroleo);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav__link:hover {
  color: var(--color-gold);
  background-color: var(--color-cream);
}

.nav__link--cta {
  background-color: var(--color-petroleo);
  color: var(--color-gold);
  padding: 0.5rem 1.25rem;
}

.nav__link--cta:hover {
  background-color: var(--color-petroleo-mid);
  color: var(--color-gold-light);
}

/* Hamburguer */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.hamburger__line {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-petroleo);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Menu mobile */
.nav-mobile {
  display: none;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}


/* Fix menu mobile iOS */
.nav-mobile {
  position: relative;
  z-index: 99;
}

.nav-mobile.is-open {
  display: block !important;
}

.nav-mobile.is-open { display: block; }

.nav-mobile__list { padding: var(--space-sm) 0; }

.nav-mobile__link {
  display: block;
  padding: 0.75rem var(--space-md);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-petroleo);
  transition: background var(--transition), color var(--transition);
}

.nav-mobile__link:hover {
  background-color: var(--color-cream);
  color: var(--color-gold);
}

/* ---------------------------------------------------------------
   7. HERO
--------------------------------------------------------------- */
.hero {
  background-color: var(--color-petroleo);
  position: relative;
  padding-top: calc(var(--header-h) + var(--space-xl));
  padding-bottom: var(--space-2xl);
  overflow: hidden;
}

/* Textura decorativa sutil */
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, rgba(184,145,97,0.05) 0%, transparent 70%);
  pointer-events: none;
}

/* Linha vertical decorativa
.hero::after {
  content: '';
  position: absolute;
  top: 0; right: 38%;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(184,145,97,0.15), transparent);
  pointer-events: none;
} */

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.hero__title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: var(--space-md);
  letter-spacing: 0.03em;
}

.hero__title-accent {
  font-style: normal;
  color: var(--color-gold);
}

.hero__desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.65);
  max-width: 500px;
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

/* Contatos rápidos */
.hero__contacts {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hero__contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

.hero__contact-link:hover { color: var(--color-gold); }

.hero__contact-icon {
  width: 16px;
  height: 16px;
  color: var(--color-gold);
  flex-shrink: 0;
}

/* Painel lateral com áreas de atuação */
.hero__panel {
  background-color: rgba(255,255,255,0.04);
  border: 1px solid rgba(184,145,97,0.25);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-md);
}

.hero__panel-label {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(184,145,97,0.2);
}

.hero__panel-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero__panel-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  cursor: pointer;
  transition: color var(--transition);
}

.hero__panel-item:last-child { border-bottom: none; }

.hero__panel-item:hover { color: var(--color-gold); }

.hero__panel-item svg:first-child {
  width: 16px;
  height: 16px;
  stroke: var(--color-gold);
  flex-shrink: 0;
}

.hero__panel-item .arrow {
  width: 14px;
  height: 14px;
  stroke: rgba(255,255,255,0.3);
  margin-left: auto;
  flex-shrink: 0;
  transition: stroke var(--transition);
  display: none; /* Esconde a seta por padrão */
}

.hero__panel-item:hover .arrow { stroke: var(--color-gold); }

/* Barra dourada inferior */
.hero__bar {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--color-gold) 40%, var(--color-gold-light) 60%, transparent 100%);
}

/* ---------------------------------------------------------------
   8. SOBRE
--------------------------------------------------------------- */
.sobre {
  padding-block: var(--space-2xl);
  background-color: var(--color-bg);
}

.sobre__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.sobre__text p { line-height: 1.85; }

/* Cards de atributos */
.sobre__attrs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.attr-card {
  background-color: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border-top: 3px solid var(--color-gold);
  transition: transform var(--transition), box-shadow var(--transition);
}

.attr-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(8,27,29,0.06);
}

.attr-card svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-gold);
  margin-bottom: 0.75rem;
}

.attr-card h3 {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-petroleo);
  margin-bottom: 0.4rem;
  letter-spacing: 0.03em;
}

.attr-card p {
  font-size: 0.8rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---------------------------------------------------------------
   9. ÁREAS DE ATUAÇÃO
--------------------------------------------------------------- */
.areas {
  padding-block: var(--space-2xl);
  background-color: var(--color-petroleo);
}

.areas__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.areas__subtitle {
  color: rgba(255,255,255,0.55);
  max-width: 600px;
  margin-inline: auto;
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 0;
}

.areas__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.area-card {
  background-color: rgba(255,255,255,0.04);
  border: 1px solid rgba(184,145,97,0.15);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  position: relative;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  cursor: pointer;
}

.area-card:hover {
  background-color: rgba(184,145,97,0.07);
  border-color: rgba(184,145,97,0.4);
  transform: translateY(-3px);
}

.area-card__num {
  font-family: var(--font-title);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(184,145,97,0.4);
  margin-bottom: var(--space-sm);
}

.area-card__icon {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(184,145,97,0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
}

.area-card__icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-gold);
}

.area-card__title {
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.area-card__desc {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
  margin-bottom: var(--space-sm);
}

.area-card__link {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
}

/* ---------------------------------------------------------------
  10. DIFERENCIAIS
--------------------------------------------------------------- */
.diferenciais {
  padding-block: var(--space-2xl);
  background-color: var(--color-cream);
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.diff-item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: transform var(--transition), box-shadow var(--transition);
}

.diff-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(8,27,29,0.07);
}

.diff-item__icon {
  width: 42px;
  height: 42px;
  background-color: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.diff-item__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-gold);
}

.diff-item__text h3 {
  font-family: var(--font-title);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-petroleo);
  margin-bottom: 0.375rem;
  letter-spacing: 0.02em;
}

.diff-item__text p {
  font-size: 0.82rem;
  line-height: 1.65;
  margin-bottom: 0;
}

/* ---------------------------------------------------------------
  11. MULTIDISCIPLINAR
--------------------------------------------------------------- */
.multidisciplinar {
  padding-block: var(--space-2xl);
  background-color: var(--color-petroleo-mid);
}

.multidisciplinar__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.multidisciplinar p { color: rgba(255,255,255,0.6); line-height: 1.8; }

.multi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.625rem;
}

.multi-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  background-color: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 0.75rem var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.7);
  transition: background var(--transition), border-color var(--transition);
}

.multi-item:hover {
  background-color: rgba(184,145,97,0.08);
  border-color: rgba(184,145,97,0.25);
}

.multi-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-gold);
  flex-shrink: 0;
}

/* ---------------------------------------------------------------
  12. CONTATO & FORMULÁRIO
--------------------------------------------------------------- */
.contato {
  padding-block: var(--space-2xl);
  background-color: var(--color-bg);
}

.contato__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contato__info p { line-height: 1.8; }

.contato__details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: var(--space-md);
}

.contato__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  transition: opacity var(--transition);
}

.contato__item:hover { opacity: 0.75; }
.contato__item--addr { cursor: default; }
.contato__item--addr:hover { opacity: 1; }

.contato__item-icon {
  width: 42px;
  height: 42px;
  background-color: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contato__item-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-gold);
  fill: none;
}

.contato__item-icon svg[fill="currentColor"] {
  fill: var(--color-gold);
  stroke: none;
}

.contato__item-label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.15rem;
}

.contato__item-value {
  display: block;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-petroleo);
  line-height: 1.5;
}

/* Formulário */
.contato__form-wrapper {
  background-color: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form__label {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-petroleo);
}

.form__label span { color: var(--color-gold); }

.form__input {
  width: 100%;
  padding: 0.7rem 0.875rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-petroleo);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}

.form__input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(184,145,97,0.12);
}

.form__input.is-error  { border-color: #a33; }
.form__textarea        { resize: vertical; min-height: 110px; }

.form__select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23081b1d' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
}

.form__error {
  font-size: 0.75rem;
  color: #a33;
  min-height: 1rem;
}

.form__feedback {
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
}

.form__feedback.is-success {
  background-color: #eafaf1;
  border: 1px solid #27ae60;
  color: #1e8449;
  padding: 0.875rem 1rem;
}

.form__feedback.is-error-msg {
  background-color: #fdedec;
  border: 1px solid #e74c3c;
  color: #a33;
  padding: 0.875rem 1rem;
}

/* ---------------------------------------------------------------
  13. FOOTER
--------------------------------------------------------------- */
.footer {
  background-color: var(--color-petroleo);
  padding-top: var(--space-2xl);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.footer__brand { display: flex; flex-direction: column; gap: 0.5rem; }

.footer__logo { height: 48px; width: auto; }

.footer__logo-name {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.footer__logo-sub {
  font-family: var(--font-body);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  color: var(--color-gold);
}

.footer__tagline {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.8;
  margin-top: 0.5rem;
}

.footer__nav-title {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__link {
  display: block;
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
  margin-bottom: 0.25rem;
}

.footer__link:hover { color: var(--color-gold); }

.footer__addr {
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  line-height: 1.75;
  margin-top: 0.5rem;
}

.footer__bottom { padding-block: var(--space-sm); }

.footer__copy {
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
  text-align: center;
  letter-spacing: 0.04em;
}

/* ---------------------------------------------------------------
  14. BOTÃO VOLTAR AO TOPO
--------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 1.5rem; right: 1.5rem;
  width: 42px; height: 42px;
  background-color: var(--color-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
}

.back-to-top svg { width: 16px; height: 16px; stroke: var(--color-petroleo); }

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover { background-color: var(--color-gold-dark); }

/* ---------------------------------------------------------------
  15. ANIMAÇÕES FADE-IN
--------------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in.is-visible { opacity: 1; transform: translateY(0); }
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.4s; }
.fade-in:nth-child(6) { transition-delay: 0.5s; }

/* ---------------------------------------------------------------
  16. RESPONSIVIDADE
--------------------------------------------------------------- */
@media (max-width: 1024px) {
  :root { --space-2xl: 5rem; }

  .hero__inner       { grid-template-columns: 1fr; }
  .hero__panel       { max-width: 480px; }
  .areas__grid       { grid-template-columns: repeat(2, 1fr); }
  .sobre__inner      { grid-template-columns: 1fr; }
  .multidisciplinar__inner { grid-template-columns: 1fr; }
  .contato__inner    { grid-template-columns: 1fr; }
  .footer__inner     { grid-template-columns: 1fr 1fr; }
  .footer__brand     { grid-column: span 2; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; --space-2xl: 3.5rem; }

  .nav          { display: none; }
  .hamburger    { display: flex; }

  .hero { padding-top: calc(var(--header-h) + var(--space-lg)); }

  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; text-align: center; }

  .areas__grid  { grid-template-columns: 1fr; }
  .diff-grid    { grid-template-columns: 1fr; }
  .sobre__attrs { grid-template-columns: 1fr; }
  .multi-grid   { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; }
  .footer__brand { grid-column: span 1; }
}

@media (max-width: 480px) {
  :root { --space-2xl: 2.5rem; }
  .contato__form-wrapper { padding: var(--space-sm); }
}

@media (max-width: 768px) {
  .nav-mobile.is-open {
    display: block !important;
  }
}