/*
 * Tema claro estilo G4 (referência: https://g4business.com/)
 * Ritmo vertical: faixas azul-marinho profundo ↔ branco/off-white,
 * texto claro sobre azul, texto escuro sobre branco, dourado como destaque nas faixas escuras.
 */

html[data-theme="light"] {
  --g4-navy: #0a1628;
  --g4-navy-mid: #0f243d;
  --g4-navy-deep: #050a12;
  --g4-white: #ffffff;
  --g4-off-white: #f5f7fa;
  --g4-on-dark: #f0f4f8;
  --g4-on-dark-muted: #9fb0c4;
  --g4-gold: #e0bc5c;
  --g4-gold-hover: #eccf7a;
  --g4-on-light: #0a1628;
  --g4-muted-light: #4a5a6e;
  --g4-blue-accent: #0c4a7a;
  --g4-blue-accent-hover: #1565a8;

  --bg: var(--g4-off-white);
  --bg2: var(--g4-white);
  --surface: #eef1f6;
  --border: rgba(10, 22, 40, 0.12);
  --text: var(--g4-on-light);
  --muted: var(--g4-muted-light);
  --gold: var(--g4-blue-accent);
  --gold-lt: var(--g4-blue-accent-hover);
  --gold-dim: rgba(12, 74, 122, 0.12);
  --accent: #064a7a;
  --nav-bg: rgba(10, 22, 40, 0.97);
  --noise-opacity: 0.03;
  --btn-on-gold: #0a1628;
  --elev-1: 0 4px 24px rgba(5, 12, 24, 0.12);
  --elev-2: 0 12px 40px rgba(5, 12, 24, 0.18);
}

html[data-theme="light"] body {
  background: var(--g4-navy-deep);
}

html[data-theme="light"] body::before {
  opacity: var(--noise-opacity);
}

/* ─── Navegação (barra escura tipo G4) ─── */
html[data-theme="light"] nav {
  background: var(--nav-bg);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

html[data-theme="light"] .nav-links a {
  color: rgba(240, 244, 248, 0.72);
}

html[data-theme="light"] .nav-links a:hover {
  color: var(--g4-gold);
}

html[data-theme="light"] .nav-links a[aria-current="page"] {
  color: var(--g4-gold);
}

html[data-theme="light"] .nav-cta {
  background: var(--g4-gold) !important;
  color: var(--g4-navy) !important;
}

html[data-theme="light"] .nav-cta:hover {
  background: var(--g4-gold-hover) !important;
}

/* ─── Faixas AZUIS: hero, services, testimonials ─── */
html[data-theme="light"] .hero,
html[data-theme="light"] .services,
html[data-theme="light"] .testimonial-section {
  background: linear-gradient(
    165deg,
    var(--g4-navy) 0%,
    var(--g4-navy-mid) 48%,
    #0c2036 100%
  );
  color: var(--g4-on-dark);
  --text: var(--g4-on-dark);
  --muted: var(--g4-on-dark-muted);
  --gold: var(--g4-gold);
  --gold-lt: var(--g4-gold-hover);
  --gold-dim: rgba(224, 188, 92, 0.14);
  --border: rgba(255, 255, 255, 0.14);
}

html[data-theme="light"] .hero .staff-line,
html[data-theme="light"] .services .staff-line,
html[data-theme="light"] .testimonial-section .staff-line {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(224, 188, 92, 0.12),
    rgba(255, 255, 255, 0.1),
    rgba(224, 188, 92, 0.12),
    transparent
  );
}

html[data-theme="light"] .hero .orb-1,
html[data-theme="light"] .services .orb-1,
html[data-theme="light"] .testimonial-section .orb-1 {
  background: rgba(224, 188, 92, 0.08);
}

html[data-theme="light"] .hero .orb-2,
html[data-theme="light"] .services .orb-2,
html[data-theme="light"] .testimonial-section .orb-2 {
  background: rgba(120, 170, 255, 0.07);
}

html[data-theme="light"] .hero .hero-tag,
html[data-theme="light"] .services .section-tag,
html[data-theme="light"] .testimonial-section .section-tag {
  background: rgba(224, 188, 92, 0.12);
  border-color: rgba(224, 188, 92, 0.35);
  color: var(--g4-gold-hover);
}

html[data-theme="light"] .hero .btn-primary,
html[data-theme="light"] .services .btn-primary,
html[data-theme="light"] .testimonial-section .btn-primary {
  background: var(--g4-gold);
  color: var(--g4-navy) !important;
  border-color: rgba(10, 22, 40, 0.15);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

html[data-theme="light"] .hero .btn-primary:hover,
html[data-theme="light"] .services .btn-primary:hover,
html[data-theme="light"] .testimonial-section .btn-primary:hover {
  background: var(--g4-gold-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

html[data-theme="light"] .hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--g4-on-dark);
  background: rgba(255, 255, 255, 0.04);
}

html[data-theme="light"] .hero .btn-outline:hover {
  border-color: var(--g4-gold);
  background: rgba(224, 188, 92, 0.12);
  color: var(--g4-gold-hover);
}

/* Cartões sobre faixa azul */
html[data-theme="light"] .services .service-card,
html[data-theme="light"] .testimonial-section .testimonial-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

html[data-theme="light"] .services .service-card:hover,
html[data-theme="light"] .testimonial-section .testimonial-card:hover {
  border-color: rgba(224, 188, 92, 0.35);
  box-shadow: var(--elev-2);
}

html[data-theme="light"] .services .service-card::before {
  background: radial-gradient(
    ellipse at top left,
    rgba(224, 188, 92, 0.08),
    transparent 55%
  );
}

html[data-theme="light"] .services .service-icon,
html[data-theme="light"] .testimonial-section .testimonial-avatar {
  background: rgba(224, 188, 92, 0.12);
  border-color: rgba(224, 188, 92, 0.28);
}

html[data-theme="light"] .testimonial-section .quote-icon {
  color: var(--g4-gold);
}

html[data-theme="light"] .services .service-link {
  color: var(--g4-gold-hover);
}

/* ─── Faixas BRANCAS: about, feature, cta ─── */
html[data-theme="light"] .about,
html[data-theme="light"] .feature-section,
html[data-theme="light"] .cta-section {
  background: var(--g4-white);
  color: var(--g4-on-light);
  --text: var(--g4-on-light);
  --muted: var(--g4-muted-light);
  --gold: var(--g4-blue-accent);
  --gold-lt: var(--g4-blue-accent-hover);
  --gold-dim: rgba(12, 74, 122, 0.1);
  --border: rgba(10, 22, 40, 0.11);
}

html[data-theme="light"] .feature-section {
  background: var(--g4-off-white);
}

html[data-theme="light"] .about .about-visual {
  background: var(--g4-off-white);
  border-color: rgba(10, 22, 40, 0.12);
  box-shadow: var(--elev-1);
}

html[data-theme="light"] .about .about-visual::before {
  background: radial-gradient(
    ellipse at center,
    rgba(12, 74, 122, 0.06),
    transparent 70%
  );
}

html[data-theme="light"] .about .about-visual-inner .big-num {
  color: var(--g4-blue-accent);
  text-shadow: none;
}

html[data-theme="light"] .about .pill {
  background: var(--g4-white);
  border-color: rgba(10, 22, 40, 0.12);
}

html[data-theme="light"] .about .pill:hover {
  border-color: var(--g4-blue-accent);
  color: var(--g4-blue-accent);
}

html[data-theme="light"] .feature-section::before {
  background: radial-gradient(
    ellipse at top right,
    rgba(12, 74, 122, 0.06),
    transparent 55%
  );
}

html[data-theme="light"] .feature-section .feature-visual {
  border-color: rgba(10, 22, 40, 0.12);
  box-shadow: var(--elev-1);
}

html[data-theme="light"] .feature-section .feature-list li {
  border-bottom-color: rgba(10, 22, 40, 0.1);
}

html[data-theme="light"] .feature-section .feature-list li::before {
  color: var(--g4-blue-accent);
}

html[data-theme="light"] .feature-section .mock-ui {
  background: var(--g4-off-white);
  border-color: rgba(10, 22, 40, 0.1);
}

html[data-theme="light"] .feature-section .mock-row {
  background: var(--g4-white);
}

html[data-theme="light"] .feature-section .mock-bar-fill {
  background: linear-gradient(90deg, var(--g4-blue-accent), #2e7dc4);
}

html[data-theme="light"] .feature-section .btn-primary {
  background: var(--g4-blue-accent);
  color: var(--g4-white) !important;
  border: 1px solid rgba(10, 22, 40, 0.12);
  box-shadow: var(--elev-1);
}

html[data-theme="light"] .feature-section .btn-primary:hover {
  background: var(--g4-blue-accent-hover);
  box-shadow: var(--elev-2);
}

html[data-theme="light"] .cta-section::before {
  background: radial-gradient(
    ellipse at center,
    rgba(12, 74, 122, 0.06) 0%,
    transparent 65%
  );
}

html[data-theme="light"] .cta-section .btn-primary {
  background: var(--g4-blue-accent);
  color: var(--g4-white) !important;
  border: 1px solid rgba(10, 22, 40, 0.12);
}

html[data-theme="light"] .cta-section .btn-primary:hover {
  background: var(--g4-blue-accent-hover);
}

html[data-theme="light"] .cta-contact a {
  color: var(--g4-blue-accent);
}

/* ─── Rodapé ─── */
html[data-theme="light"] footer {
  background: var(--g4-navy-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

html[data-theme="light"] footer p {
  color: var(--g4-on-dark-muted);
}

html[data-theme="light"] .footer-links .footer-item {
  color: rgba(240, 244, 248, 0.68);
}

/* ─── Toggle de tema (sobre nav escura) ─── */
html[data-theme="light"] .theme-toggle {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
  color: var(--g4-on-dark);
}

html[data-theme="light"] .theme-toggle:hover {
  background: rgba(224, 188, 92, 0.18);
  border-color: rgba(224, 188, 92, 0.4);
  color: var(--g4-gold-hover);
}

html[data-theme="light"] .theme-toggle:focus-visible {
  outline-color: var(--g4-gold);
}

html[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

html[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

/* ─── Seminário: mesma cadência (azul / branco / …) ─── */
html[data-theme="light"] .page-hero {
  background: linear-gradient(
    165deg,
    var(--g4-navy) 0%,
    var(--g4-navy-mid) 50%,
    #0c2036 100%
  );
  color: var(--g4-on-dark);
  --text: var(--g4-on-dark);
  --muted: var(--g4-on-dark-muted);
  --gold: var(--g4-gold);
  --gold-lt: var(--g4-gold-hover);
  --gold-dim: rgba(224, 188, 92, 0.14);
}

html[data-theme="light"] .page-hero .staff-line {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(224, 188, 92, 0.12),
    rgba(255, 255, 255, 0.1),
    rgba(224, 188, 92, 0.12),
    transparent
  );
}

html[data-theme="light"] .page-hero .orb-1 {
  background: rgba(224, 188, 92, 0.08);
}

html[data-theme="light"] .page-hero .orb-2 {
  background: rgba(120, 170, 255, 0.07);
}

html[data-theme="light"] .page-hero .hero-tag {
  background: rgba(224, 188, 92, 0.12);
  border-color: rgba(224, 188, 92, 0.35);
  color: var(--g4-gold-hover);
}

html[data-theme="light"] .page-hero .btn-primary {
  background: var(--g4-gold);
  color: var(--g4-navy) !important;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
}

html[data-theme="light"] .page-hero .btn-primary:hover {
  background: var(--g4-gold-hover);
}

html[data-theme="light"] .page-hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--g4-on-dark);
  background: rgba(255, 255, 255, 0.05);
}

html[data-theme="light"] .page-hero .btn-outline:hover {
  border-color: var(--g4-gold);
  background: rgba(224, 188, 92, 0.12);
}

html[data-theme="light"] .page-hero .hero-featured-photos figure {
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.38);
}

html[data-theme="light"] section#sobre-seminario.band-alt {
  background: var(--g4-white);
  color: var(--g4-on-light);
  --text: var(--g4-on-light);
  --muted: var(--g4-muted-light);
  --gold: var(--g4-blue-accent);
  --gold-lt: var(--g4-blue-accent-hover);
}

html[data-theme="light"] section#programacao-exemplo {
  background: linear-gradient(180deg, #0c1e35 0%, var(--g4-navy) 100%);
  color: var(--g4-on-dark);
  --text: var(--g4-on-dark);
  --muted: var(--g4-on-dark-muted);
  --gold: var(--g4-gold);
}

html[data-theme="light"] section#programacao-exemplo .section-tag {
  color: var(--g4-gold-hover);
}

html[data-theme="light"] section#programacao-exemplo h2.section-title,
html[data-theme="light"] section#programacao-exemplo .section-title span {
  color: var(--g4-on-dark);
}

html[data-theme="light"] section#programacao-exemplo .section-title span {
  color: var(--g4-gold);
}

html[data-theme="light"] section#programacao-exemplo .prose,
html[data-theme="light"] section#programacao-exemplo .prose a {
  color: var(--g4-on-dark-muted);
}

html[data-theme="light"] section#programacao-exemplo .prose a {
  color: var(--g4-gold-hover);
}

html[data-theme="light"] section#programacao-exemplo .schedule-wrap {
  background: var(--g4-white);
  border: 1px solid rgba(10, 22, 40, 0.08);
  box-shadow: var(--elev-2);
}

html[data-theme="light"] section#programacao-exemplo .schedule-table th {
  background: rgba(10, 22, 40, 0.06);
  color: var(--g4-navy);
}

html[data-theme="light"] section#programacao-exemplo .schedule-table td {
  color: var(--g4-muted-light);
  border-bottom-color: rgba(10, 22, 40, 0.08);
}

html[data-theme="light"] section#programacao-exemplo .schedule-table td strong {
  color: var(--g4-on-light);
}

html[data-theme="light"] section#historico.band-alt {
  background: var(--g4-off-white);
  color: var(--g4-on-light);
  --text: var(--g4-on-light);
  --muted: var(--g4-muted-light);
  --gold: var(--g4-blue-accent);
}

html[data-theme="light"] section#historico .event-card {
  background: var(--g4-white);
  border-color: rgba(10, 22, 40, 0.12);
  box-shadow: var(--elev-1);
}

html[data-theme="light"] section#historico .event-card:hover {
  border-color: rgba(12, 74, 122, 0.35);
}

html[data-theme="light"] section#historico .event-card .date {
  color: var(--g4-blue-accent);
}

html[data-theme="light"] section#sobre-seminario .notice {
  border: 1px solid rgba(10, 22, 40, 0.12);
  border-left: 4px solid var(--g4-blue-accent);
  background: linear-gradient(
    105deg,
    rgba(12, 74, 122, 0.08) 0%,
    var(--g4-white) 50%
  );
  color: var(--g4-on-light);
}

html[data-theme="light"] section#sobre-seminario .notice strong {
  color: var(--g4-navy);
}

html[data-theme="light"] .cta-section .btn-outline {
  border-color: rgba(10, 22, 40, 0.2);
  color: var(--g4-on-light);
  background: transparent;
}

html[data-theme="light"] .cta-section .btn-outline:hover {
  border-color: var(--g4-blue-accent);
  background: rgba(12, 74, 122, 0.08);
}

/* ─── Utilitários compartilhados ─── */
.nav-start {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Menu hambúrguer (mobile) */
.nav-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  color: var(--gold);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    border-color 0.2s,
    background 0.2s,
    color 0.2s;
}

.nav-menu-toggle:hover {
  border-color: rgba(200, 168, 75, 0.45);
  background: var(--gold-dim);
}

.nav-menu-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-menu-icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 1.35rem;
  pointer-events: none;
}

.nav-menu-icon span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition:
    transform 0.25s ease,
    opacity 0.2s ease;
}

nav.nav-menu-open .nav-menu-toggle .nav-menu-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

nav.nav-menu-open .nav-menu-toggle .nav-menu-icon span:nth-child(2) {
  opacity: 0;
}

nav.nav-menu-open .nav-menu-toggle .nav-menu-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  nav {
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }

  .nav-start {
    order: 1;
  }

  .nav-menu-toggle {
    display: inline-flex;
    order: 2;
  }

  .nav-links {
    order: 3;
    flex: 1 0 100%;
    width: 100%;
    max-width: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 0.5rem 0 1rem;
    list-style: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    box-sizing: border-box;
    background: var(--nav-bg);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
    max-height: min(75vh, calc(100vh - 5rem));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 1;
  }

  nav.nav-menu-open .nav-links {
    display: flex;
  }

  .nav-links li {
    width: 100%;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .nav-links a {
    display: block;
    padding: 1rem 1.8rem;
    font-size: 0.9rem;
  }

  .nav-links a.nav-cta {
    text-align: center;
    margin: 0.75rem 1.25rem 0.35rem;
    border-radius: 2rem;
    padding: 0.75rem 1rem;
  }
}

body.nav-menu-open {
  overflow: hidden;
}

html[data-theme="light"] .nav-menu-toggle {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--g4-gold-hover);
}

html[data-theme="light"] .nav-menu-toggle:hover {
  background: rgba(224, 188, 92, 0.15);
  border-color: rgba(224, 188, 92, 0.45);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2.45rem;
  height: 2.45rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--gold);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s, transform 0.15s;
}

.theme-toggle:hover {
  border-color: rgba(30, 100, 168, 0.45);
  background: var(--gold-dim);
  transform: translateY(-1px);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle svg {
  width: 1.1rem;
  height: 1.1rem;
  display: block;
  pointer-events: none;
}

.theme-toggle .icon-sun {
  display: none;
}