/* =============================================
   EcoTuring — Stylesheet Compartilhado
   Estética: Tech / Dark / EcoTuring Identity
   ============================================= */

/* ---- Variáveis ---- */
:root {
  --bg:           #05070b;
  --bg-secondary: #0c1118;
  --card:         rgba(18, 24, 34, 0.92);
  --border:       rgba(120, 255, 214, 0.15);
  --text:         #edf6f3;
  --muted:        #a8bbb3;
  --accent:       #64f3d0;
  --accent-2:     #9af26b;
  --shadow:       0 18px 50px rgba(0, 0, 0, 0.38);
  --radius:       14px;
  --transicao:    .25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top, rgba(100, 243, 208, 0.12), transparent 30%),
    radial-gradient(circle at right bottom, rgba(154, 242, 107, 0.10), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, #020305 100%);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

/* ---- Tipografia ---- */
h1, h2, h3, h4 {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.2;
  color: var(--text);
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transicao);
}
a:hover { color: var(--accent-2); }

/* ====== HEADER / NAV ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 7, 11, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
}

.logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
  border-radius: 8px;
}

.footer-logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
  border-radius: 8px;
  opacity: .85;
  transition: opacity var(--transicao);
}
.footer-logo-img:hover { opacity: 1; }

.site-logo span {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.site-nav a {
  font-size: .85rem;
  font-weight: 500;
  color: var(--muted);
  padding: .45rem .75rem;
  border-radius: 8px;
  transition: background var(--transicao), color var(--transicao);
  white-space: nowrap;
}
.site-nav a:hover,
.site-nav a.ativo {
  background: rgba(100, 243, 208, 0.08);
  color: var(--accent);
}

/* Hamburguer (mobile) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
  color: var(--text);
}

@media (max-width: 720px) {
  .menu-toggle { display: flex; align-items: center; }

  .site-nav {
    position: absolute;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: .75rem 1.5rem 1rem;
    gap: .1rem;
    display: none;
    box-shadow: var(--shadow);
  }
  .site-nav.aberto { display: flex; }
  .site-nav a { padding: .6rem .75rem; }
}

/* ====== HERO ====== */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 2rem 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
}

.hero-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(100, 243, 208, 0.10);
  border: 1px solid rgba(100, 243, 208, 0.30);
  padding: .3rem .8rem;
  border-radius: 100px;
  margin-bottom: 1.2rem;
}

.hero h1 {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: .6rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--muted);
  margin-bottom: 2rem;
  max-width: 460px;
}

.hero-btns {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border-radius: 100px;
  font-size: .9rem;
  font-weight: 600;
  transition: transform var(--transicao), box-shadow var(--transicao), background var(--transicao);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #03110d;
  box-shadow: 0 4px 20px rgba(100, 243, 208, 0.25);
}
.btn-primary:hover {
  color: #03110d;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(100, 243, 208, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid rgba(100, 243, 208, 0.30);
}
.btn-outline:hover {
  background: rgba(100, 243, 208, 0.06);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Ilustração hero */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo-wrap::before {
  content: '';
  position: absolute;
  inset: -32px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(100, 243, 208, 0.10) 0%, transparent 70%);
  pointer-events: none;
}

.hero-logo-img {
  width: 320px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 20px;
  filter: drop-shadow(0 0 32px rgba(100, 243, 208, 0.22));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 840px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 4rem 1.5rem 3rem;
    text-align: center;
    gap: 2.5rem;
  }
  .hero-sub { margin: 0 auto 2rem; }
  .hero-btns { justify-content: center; }
  .hero-visual { order: -1; }
  .hero-logo-img { width: 220px; }
}

/* ====== SEÇÕES GERAIS ====== */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .6rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: .6rem;
}

.section-header h2::before {
  content: '';
  display: inline-block;
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(100, 243, 208, 0.55);
}

.section-header p {
  margin-top: .5rem;
  font-size: .97rem;
}

/* ====== SOBRE / ABOUT ====== */
.sobre-texto {
  margin-bottom: 2.5rem;
}

.sobre-texto p {
  font-size: .97rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.sobre-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.stat-card {
  background: linear-gradient(180deg, rgba(15, 21, 30, 0.96), var(--card));
  border-radius: 22px;
  padding: 1.4rem 1.2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform var(--transicao), box-shadow var(--transicao), border-color var(--transicao);
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(154, 242, 107, 0.35);
}

.stat-card .num {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: .25rem;
}

.stat-card .label {
  font-size: .82rem;
  font-weight: 500;
  color: var(--muted);
}

@media (max-width: 720px) {
  .sobre-stats { grid-template-columns: 1fr 1fr; }
}

/* ====== INSTAGRAM BAND ====== */
.insta-band {
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-secondary) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.insta-band::before {
  content: '';
  position: absolute;
  top: -60%; left: -10%;
  width: 40%; height: 200%;
  background: rgba(100, 243, 208, 0.03);
  transform: rotate(-15deg);
}
.insta-band h3 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: .4rem;
}
.insta-band p {
  color: var(--muted);
  margin-bottom: 1.4rem;
}
.btn-insta {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #03110d;
  border-radius: 100px;
  padding: .7rem 1.6rem;
  font-weight: 600;
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  transition: transform var(--transicao), box-shadow var(--transicao);
}
.btn-insta:hover {
  color: #03110d;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(100, 243, 208, 0.25);
}

/* ====== PUBLICAÇÕES ====== */
.pub-lista {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.pub-card {
  background: linear-gradient(180deg, rgba(15, 21, 30, 0.96), var(--card));
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 22px;
  padding: 1.6rem 1.8rem;
  box-shadow: var(--shadow);
  transition: transform var(--transicao), box-shadow var(--transicao), border-color var(--transicao);
}
.pub-card:hover {
  transform: translateY(-4px);
  border-color: rgba(154, 242, 107, 0.35);
}

.pub-year {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(100, 243, 208, 0.10);
  padding: .2rem .65rem;
  border-radius: 100px;
  margin-bottom: .7rem;
}

.pub-card h3 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: .5rem;
}

.pub-citation {
  font-size: .85rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .83rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(100, 243, 208, 0.08);
  padding: .35rem .8rem;
  border-radius: 8px;
  transition: background var(--transicao), color var(--transicao);
}
.pub-link:hover {
  background: rgba(100, 243, 208, 0.16);
  color: var(--accent-2);
}

/* ====== VR ====== */
.vr-hero {
  background: linear-gradient(160deg, var(--bg) 0%, #020305 100%);
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.vr-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 120%, rgba(100, 243, 208, 0.12) 0%, transparent 65%);
  pointer-events: none;
}

.vr-hero h1 {
  color: var(--text);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  margin-bottom: .6rem;
}
.vr-hero h1 em { color: var(--accent-2); font-style: italic; }
.vr-hero p {
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto;
  font-size: 1rem;
}

.bioma-titulo {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.5rem;
}
.bioma-titulo h2 { font-size: 1.5rem; color: var(--text); }
.bioma-badge {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .25rem .65rem;
  border-radius: 100px;
}
.badge-caatinga { background: rgba(154, 242, 107, 0.12); color: var(--accent-2); border: 1px solid rgba(154, 242, 107, 0.35); }
.badge-mata    { background: rgba(100, 243, 208, 0.10); color: var(--accent); border: 1px solid rgba(100, 243, 208, 0.30); }

.trilha-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-bottom: 3.5rem;
}

.trilha-card {
  background: linear-gradient(180deg, rgba(15, 21, 30, 0.96), var(--card));
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 1.4rem 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .6rem;
  transition: transform var(--transicao), box-shadow var(--transicao), border-color var(--transicao);
}
.trilha-card:hover {
  transform: translateY(-4px);
  border-color: rgba(154, 242, 107, 0.35);
}

.trilha-icon { font-size: 1.8rem; }

.trilha-preview-img {
  display: block;
  width: calc(100% + 3rem);
  margin: -1.4rem -1.5rem .8rem;
  height: 160px;
  object-fit: cover;
  border-radius: 20px 20px 0 0;
}

.trilha-card h3 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.trilha-card p {
  font-size: .85rem;
  flex: 1;
}

.btn-vr {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .82rem;
  font-weight: 600;
  color: #03110d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  padding: .45rem .9rem;
  border-radius: 8px;
  align-self: flex-start;
  margin-top: .2rem;
  transition: opacity var(--transicao), transform var(--transicao);
}
.btn-vr:hover {
  color: #03110d;
  opacity: .88;
  transform: translateY(-1px);
}

/* ====== DOWNLOAD ====== */
.download-hero {
  max-width: 700px;
  margin: 0 auto;
  padding: 6rem 2rem;
  text-align: center;
}

.download-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: .8rem;
}

.download-hero p {
  font-size: 1rem;
  margin-bottom: 2.4rem;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

.play-btn {
  display: inline-block;
  transition: transform var(--transicao), box-shadow var(--transicao);
  border-radius: 12px;
  overflow: hidden;
}
.play-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 40px rgba(100, 243, 208, 0.20);
}
.play-btn img {
  height: 68px;
  display: block;
}

.requisitos {
  margin-top: 3rem;
  background: linear-gradient(180deg, rgba(15, 21, 30, 0.96), var(--card));
  border-radius: 22px;
  padding: 1.6rem 2rem;
  border: 1px solid var(--border);
  text-align: left;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.requisitos h4 {
  font-size: .9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--accent);
  margin-bottom: .8rem;
}
.requisitos ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.requisitos li {
  font-size: .88rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.requisitos li::before {
  content: '✓';
  color: var(--accent-2);
  font-weight: 700;
  font-size: .8rem;
}

/* ====== PRIVACIDADE ====== */
.privacy-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
}

.privacy-content h1 {
  font-size: 2.2rem;
  margin-bottom: .5rem;
}

.privacy-meta {
  font-size: .82rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 2.5rem;
}

.privacy-lang-toggle {
  display: flex;
  gap: .5rem;
  margin-bottom: 2rem;
}

.lang-btn {
  padding: .35rem .85rem;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: transparent;
  font-size: .82rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transicao);
  font-family: Arial, Helvetica, sans-serif;
}
.lang-btn.ativo, .lang-btn:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #03110d;
  border-color: transparent;
}

.privacy-section {
  margin-bottom: 2rem;
}
.privacy-section h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: .6rem;
  color: var(--accent);
}
.privacy-section p, .privacy-section li {
  font-size: .92rem;
  line-height: 1.8;
  color: var(--muted);
}
.privacy-section ul {
  padding-left: 1.2rem;
  margin-top: .4rem;
}
.privacy-section li { margin-bottom: .3rem; }

.privacy-divider {
  height: 1px;
  background: var(--border);
  margin: 2.5rem 0;
}

/* ====== FOOTER ====== */
.site-footer {
  background: var(--bg-secondary);
  color: #7e938c;
  padding: 2.5rem 2rem;
  text-align: center;
  font-size: .83rem;
  border-top: 1px solid var(--border);
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
}
.footer-logo {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.2rem;
  color: var(--text);
  font-weight: 700;
  margin-bottom: .25rem;
}
.footer-links {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ====== PAGE HEADER (subpages) ====== */
.page-hero {
  background: linear-gradient(160deg, var(--bg), var(--bg-secondary));
  border-bottom: 1px solid var(--border);
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 70% at 80% 110%, rgba(100, 243, 208, 0.08) 0%, transparent 60%);
  pointer-events: none;
}
.page-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}
.page-hero h1 { color: var(--text); font-size: clamp(1.8rem, 3.5vw, 2.8rem); margin-bottom: .4rem; }
.page-hero p  { color: var(--muted); }

/* ====== UTILITÁRIOS ====== */
.divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 30%, var(--border) 70%, transparent);
  margin: 0;
}