/* ============================================================
   BELEZA NA CAPITAL — styles.css
   Mobile-first | Breakpoints: 768px | 1024px | 1440px
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg-primary:    #0D0D0D;
  --bg-secondary:  #111111;
  --bg-card:       #1A1A1A;
  --border:        #2A2A2A;
  --gold:          #C9A96E;
  --gold-light:    #E8C99A;
  --gold-dark:     #A07840;
  --text-primary:  #FFFFFF;
  --text-muted:    #9A9A9A;
  --gradient-gold: linear-gradient(135deg, #C9A96E 0%, #E8C99A 100%);
  --gradient-dark: linear-gradient(180deg, #0D0D0D 0%, #1A1410 100%);
  --shadow-gold:   0 4px 24px rgba(201, 169, 110, 0.18);
  --shadow-card:   0 2px 16px rgba(0,0,0,0.5);
  --radius:        12px;
  --radius-sm:     8px;
  --transition:    0.3s ease;
  --font:          'Poppins', sans-serif;
  --header-h:      72px;
  --wa-url:        "https://wa.me/5561996112266?text=Quero%20mais%20informa%C3%A7%C3%B5es%20sobre%20o%20M%C3%A9todo%20BNC";
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(1.75rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }
p  { color: var(--text-muted); }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}
.section-title {
  margin-bottom: 1rem;
  color: var(--text-primary);
}
.section-subtitle {
  max-width: 600px;
  margin-bottom: 2.5rem;
}

/* ── Gold accent text ───────────────────────────────────────── */
.gold { color: var(--gold); }

/* ── Container ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0 1.75rem;
  border-radius: 50px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient-gold);
  color: #0D0D0D;
  box-shadow: 0 4px 20px rgba(201,169,110,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201,169,110,0.5);
  filter: brightness(1.08);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--gold);
  color: var(--gold);
}
.btn-outline:hover {
  background: var(--gold);
  color: #0D0D0D;
  transform: translateY(-2px);
}
.btn-lg {
  min-height: 56px;
  padding: 0 2.5rem;
  font-size: 1.05rem;
}
.btn-icon { width: 20px; height: 20px; flex-shrink: 0; }

/* ── Section spacing ────────────────────────────────────────── */
section { padding: 5rem 0; }

/* ── Divider ────────────────────────────────────────────────── */
.gold-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

/* ══════════════════════════════════════════════════════════════
   HEADER
   ══════════════════════════════════════════════════════════════ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}
.header.scrolled {
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 24px rgba(0,0,0,0.6);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
}

/* Logo */
.logo-placeholder {
  width: 160px;
  height: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--gold);
  text-align: center;
  flex-shrink: 0;
}

/* Nav */
.nav { display: none; }
.nav ul {
  display: flex;
  gap: 2rem;
}
.nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gold);
  border-radius: 1px;
  transition: width var(--transition);
}
.nav a:hover { color: var(--gold); }
.nav a:hover::after { width: 100%; }

/* Header actions */
.header-actions { display: none; }
.header-actions .btn { font-size: 0.8rem; padding: 0 1.1rem; min-height: 40px; }

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
  z-index: 1100;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(13,13,13,0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu ul { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.mobile-menu a {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--gold); }

@media (min-width: 768px) {
  .hamburger { display: none; }
  .nav { display: block; }
  .header-actions { display: flex; }
  .mobile-menu { display: none !important; }
}

/* ══════════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.18;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,13,0.95) 0%, rgba(13,13,13,0.7) 60%, rgba(13,13,13,0.9) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 4rem 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(201,169,110,0.12);
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 50px;
  padding: 0.35rem 1rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.hero h1 { margin-bottom: 1.25rem; }
.hero h1 span { background: var(--gradient-gold); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin-bottom: 2.25rem;
  color: rgba(255,255,255,0.7);
  max-width: 560px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 3rem; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 0.5rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
}
.hero-badge-item svg { color: var(--gold); flex-shrink: 0; }

/* ══════════════════════════════════════════════════════════════
   QUEM SOMOS
   ══════════════════════════════════════════════════════════════ */
.quem-somos { background: var(--bg-secondary); }
.quem-somos-inner {
  display: grid;
  gap: 3rem;
  align-items: center;
}
.quem-somos-img {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-gold);
  position: relative;
}
.quem-somos-img img { width: 100%; height: 100%; object-fit: cover; }
.quem-somos-img .img-badge {
  position: absolute;
  bottom: 1rem; left: 1rem;
  background: rgba(13,13,13,0.88);
  border: 1px solid rgba(201,169,110,0.4);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gold);
}
.quem-somos-text p { margin-bottom: 1.25rem; }
.quem-somos-stats {
  display: flex;
  gap: 1.5rem;
  margin: 1.75rem 0;
  flex-wrap: wrap;
}
.stat {
  text-align: center;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  flex: 1;
  min-width: 100px;
}
.stat-num {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; }
.instagram-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gold);
  font-weight: 600;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.instagram-link:hover { color: var(--gold-light); }

@media (min-width: 1024px) {
  .quem-somos-inner { grid-template-columns: 1fr 1fr; }
}

/* ══════════════════════════════════════════════════════════════
   DORES
   ══════════════════════════════════════════════════════════════ */
.dores { background: var(--bg-primary); }
.dores-header { text-align: center; margin-bottom: 3rem; }
.dores-header .section-subtitle { margin: 0 auto 0; }
.dores-grid {
  display: grid;
  gap: 1.5rem;
}
.dor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.dor-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--gradient-gold);
  border-radius: 2px 0 0 2px;
  opacity: 0;
  transition: opacity var(--transition);
}
.dor-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201,169,110,0.3);
  box-shadow: var(--shadow-gold);
}
.dor-card:hover::before { opacity: 1; }
.dor-icon {
  width: 56px; height: 56px;
  background: rgba(201,169,110,0.1);
  border: 1px solid rgba(201,169,110,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.dor-icon svg { color: var(--gold); }
.dor-card h3 { margin-bottom: 0.75rem; color: var(--text-primary); }

@media (min-width: 768px) { .dores-grid { grid-template-columns: repeat(3, 1fr); } }

/* ══════════════════════════════════════════════════════════════
   CASES
   ══════════════════════════════════════════════════════════════ */
.cases { background: var(--bg-secondary); }
.cases-header { text-align: center; margin-bottom: 3rem; }
.cases-header .section-subtitle { margin: 0 auto; }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.case-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-gold);
  border-color: rgba(201,169,110,0.3);
}
.case-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  position: relative;
}
.case-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.case-card:hover .case-img img { transform: scale(1.05); }
.case-info {
  padding: 1rem;
}
.case-info h3 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.case-info .city { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.case-info .ig-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--gold);
  font-weight: 600;
  transition: color var(--transition);
}
.case-info .ig-link:hover { color: var(--gold-light); }
.cases-cta { text-align: center; }

@media (min-width: 768px) { .cases-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .cases-grid { grid-template-columns: repeat(4, 1fr); } }

/* ══════════════════════════════════════════════════════════════
   NOSSA ESTRUTURA
   ══════════════════════════════════════════════════════════════ */
.estrutura { background: var(--bg-primary); }
.estrutura-header { text-align: center; margin-bottom: 3.5rem; }
.estrutura-grid {
  display: grid;
  gap: 1.5rem;
}
.estrutura-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: all var(--transition);
}
.estrutura-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201,169,110,0.3);
  box-shadow: var(--shadow-gold);
}
.estrutura-num {
  width: 48px; height: 48px;
  background: var(--gradient-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: #0D0D0D;
  flex-shrink: 0;
}
.estrutura-content h3 { margin-bottom: 0.5rem; }

@media (min-width: 768px) { .estrutura-grid { grid-template-columns: repeat(2, 1fr); } }

/* ══════════════════════════════════════════════════════════════
   CTA FINAL — DIAGNÓSTICO
   ══════════════════════════════════════════════════════════════ */
.diagnostico {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.diagnostico::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at center, rgba(201,169,110,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.diagnostico-inner { text-align: center; position: relative; z-index: 1; }
.diagnostico h2 { margin-bottom: 1rem; }
.diagnostico > .container > .diagnostico-inner > p { max-width: 580px; margin: 0 auto 3rem; }
.beneficios {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 3rem;
  text-align: left;
}
.beneficio {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition);
}
.beneficio:hover {
  border-color: rgba(201,169,110,0.3);
  box-shadow: var(--shadow-gold);
}
.beneficio-icon {
  width: 44px; height: 44px;
  background: rgba(201,169,110,0.1);
  border: 1px solid rgba(201,169,110,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.beneficio-icon svg { color: var(--gold); }
.beneficio h3 { font-size: 1rem; margin-bottom: 0.3rem; }
.diagnostico-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.diagnostico-cta .btn-lg { min-width: 280px; }
.diagnostico-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  max-width: 420px;
  text-align: center;
}

@media (min-width: 768px) { .beneficios { grid-template-columns: repeat(2, 1fr); } }

/* ══════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════ */
.footer {
  background: #090909;
  border-top: 1px solid var(--border);
  padding: 3rem 0 1.5rem;
}
.footer-inner {
  display: grid;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-logo .logo-placeholder { margin-bottom: 1rem; }
.footer-logo p { font-size: 0.85rem; max-width: 240px; }
.footer-nav h4 {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.footer-nav ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-nav a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--gold); }
.footer-social h4 {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.social-links { display: flex; gap: 0.75rem; }
.social-link {
  width: 40px; height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.social-link:hover {
  border-color: var(--gold);
  background: rgba(201,169,110,0.1);
  transform: translateY(-2px);
}
.social-link svg { color: var(--text-muted); transition: color var(--transition); }
.social-link:hover svg { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  text-align: center;
}
.footer-bottom p { font-size: 0.8rem; }

@media (min-width: 768px) {
  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

/* ══════════════════════════════════════════════════════════════
   FLOATING WHATSAPP BUTTON
   ══════════════════════════════════════════════════════════════ */
.wa-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 900;
  width: 60px; height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: all var(--transition);
  animation: wa-pulse 2.5s infinite;
}
.wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,0.55);
  animation: none;
}
.wa-float svg { color: #fff; }
@keyframes wa-pulse {
  0%,100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
  50%      { box-shadow: 0 4px 30px rgba(37,211,102,0.7), 0 0 0 8px rgba(37,211,102,0.1); }
}

/* ══════════════════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ══════════════════════════════════════════════════════════════ */
.fade-in-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease;
}
.fade-in.visible { opacity: 1; }

/* Stagger children */
.stagger > * { transition-delay: calc(var(--i, 0) * 0.1s); }

/* ══════════════════════════════════════════════════════════════
   SCROLLBAR
   ══════════════════════════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-dark); }