/* Estilos exclusivos da landing page (index.html) */

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* --- Nav --- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem clamp(1.25rem, 5vw, 4rem);
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 7, 18, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.05rem;
}

.nav-logo span {
  color: var(--violet-400);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--duration-fast) var(--ease-out-expo);
}

.nav-links a:hover {
  color: var(--text-primary);
}

@media (max-width: 780px) {
  .nav-links { display: none; }
}

/* --- Hero --- */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding: clamp(3rem, 8vw, 6rem) clamp(1.25rem, 5vw, 4rem);
  overflow: hidden;
}

.hero-orb-1 {
  width: 480px;
  height: 480px;
  background: var(--violet-600);
  opacity: 0.35;
  top: -160px;
  left: -160px;
}

.hero-orb-2 {
  width: 360px;
  height: 360px;
  background: #c026d3;
  opacity: 0.22;
  bottom: -140px;
  right: 10%;
  animation-delay: -6s;
}

.hero-title {
  font-size: clamp(2.4rem, 5.6vw, 4.2rem);
  margin: 1.25rem 0 1.5rem;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 46ch;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 340px;
}

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

.progress-ring {
  width: min(320px, 80vw);
  height: min(320px, 80vw);
  transform: rotate(-90deg);
}

.progress-ring-track {
  fill: none;
  stroke: var(--border-subtle);
  stroke-width: 10;
}

.progress-ring-value {
  fill: none;
  stroke: var(--violet-400);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 565.48;
  stroke-dashoffset: 565.48;
  transition: stroke-dashoffset 1.4s var(--ease-out-expo) 0.2s;
}

.hero-visual.is-visible .progress-ring-value {
  stroke-dashoffset: 158.3;
}

.progress-ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.progress-ring-number {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
}

.progress-ring-text {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.floating-card {
  position: absolute;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.15rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
  animation: float-orb 8s ease-in-out infinite;
}

.floating-card-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--violet-300);
}

.floating-card-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  max-width: 16ch;
}

.floating-card-1 {
  top: 5%;
  left: -6%;
}

.floating-card-2 {
  bottom: 8%;
  right: -8%;
  animation-delay: -4s;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    flex-direction: column;
    min-height: auto;
    gap: 1rem;
  }
  .floating-card-1, .floating-card-2 {
    position: static;
    animation: none;
  }
}

/* --- Seções gerais --- */
.section {
  padding: clamp(3rem, 7vw, 5rem) clamp(1.25rem, 5vw, 4rem);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  margin-top: 0.75rem;
}

.section-desc {
  max-width: 34ch;
  color: var(--text-secondary);
}

/* --- Feature grid --- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--duration-base) var(--ease-out-expo),
    border-color var(--duration-base) var(--ease-out-expo);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--violet-500);
}

.feature-card-accent {
  background: var(--accent-gradient);
  border-color: transparent;
}

.feature-card-accent .feature-index,
.feature-card-accent p {
  color: rgba(255, 255, 255, 0.85);
}

.feature-index {
  display: block;
  font-family: var(--font-display);
  color: var(--violet-400);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* --- Stats --- */
.stats-section {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  margin-left: clamp(1.25rem, 5vw, 4rem);
  margin-right: clamp(1.25rem, 5vw, 4rem);
  padding: clamp(2.5rem, 5vw, 3.5rem);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--violet-300);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 700px) {
  .stats-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* --- Artigos --- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.article-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.article-card:hover {
  transform: translateY(-6px);
}

.article-thumb {
  height: 160px;
}

.article-thumb-1 { background: linear-gradient(135deg, #4c1d95, #1c1530); }
.article-thumb-2 { background: linear-gradient(135deg, #6d28d9, #0a0712); }
.article-thumb-3 { background: var(--accent-gradient); }

.article-card > *:not(.article-thumb) {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.article-tag {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--violet-400);
}

.article-card h3 {
  font-size: 1.05rem;
  margin: 0.6rem 0;
}

.article-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding-bottom: 1.75rem;
}

.article-card-accent {
  border-color: var(--violet-500);
}

@media (max-width: 960px) {
  .articles-grid { grid-template-columns: 1fr; }
}

/* --- CTA final --- */
.cta-section {
  position: relative;
  text-align: center;
  padding: clamp(4rem, 10vw, 6rem) 1.5rem;
  overflow: hidden;
}

.cta-orb {
  width: 600px;
  height: 400px;
  background: var(--accent-gradient);
  opacity: 0.25;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.cta-section h2 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  position: relative;
}

.cta-section p {
  color: var(--text-secondary);
  margin: 1rem 0 2rem;
  position: relative;
}

.cta-section .hero-actions {
  justify-content: center;
  position: relative;
}

/* --- Footer --- */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem clamp(1.25rem, 5vw, 4rem);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text-primary);
}