/* ===========================
   Root Variables (Theme LDA)
=========================== */
:root {
  --bg-dark: #0a0d14;
  --bg-card: #111827;
  --neon-blue: #00eaff;
  --neon-purple: #8b5cf6;
  --neon-cyan: #22d3ee;
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
}

/* ===========================
   Global
=========================== */
body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
}

/* Canvas */
#particles-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
}

/* ===========================
   Navbar LDA (Bootstrap-safe)
=========================== */
.lda-navbar {
  background: rgba(10, 13, 20, 0.85);
  backdrop-filter: blur(12px);
  z-index: 1030;
}

.navbar-brand.logo {
  font-size: 1.4rem;
  font-weight: 700;
}

.navbar-brand.logo span {
  color: var(--neon-cyan);
  margin-left: 6px;
}

/* Ajuste botão mobile */
.navbar-toggler {
  border: none;
}

.navbar-toggler:focus {
  box-shadow: none;
}


.logo {
  font-size: 1.4rem;
  font-weight: 700;
}

.logo span {
  color: var(--neon-cyan);
  margin-left: 6px;
}

/* ===========================
   Buttons (override Bootstrap)
=========================== */
.btn {
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-blue));
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(0, 234, 255, 0.6);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
}

.btn-outline:hover {
  background: var(--neon-cyan);
  color: #000;
}

.btn-glow {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
  color: #000;
  border: none;
  box-shadow: 0 0 20px rgba(0, 234, 255, 0.6);
}

.btn-glow:hover {
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.9);
}

/* ===========================
   Hero
=========================== */
.hero {
  padding: 140px 20px 60px;
  text-align: center;
}

.hero-compact {
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 16px;
}

.hero h1 span {
  color: var(--neon-blue);
}

.hero p {
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
}

/* ===========================
   Cards (Bootstrap grid)
=========================== */
.cards {
  padding: 80px 0;
}

.cards-top {
  padding-top: 40px;
}

.card {
  background: var(--bg-card);
  border: none;
  border-radius: 18px;
  padding: 32px;
  height: 100%;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 234, 255, 0.15);
}

.card h3 {
  color: var(--neon-cyan);
  margin-bottom: 12px;
}

.card p {
  color: var(--text-muted);
}

/* ===========================
   Scroll Reveal
=========================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   Showcase / Carousel
=========================== */
.showcase {
  padding: 100px 0;
}

.showcase h2 {
  color: var(--neon-cyan);
}

/* Bootstrap Carousel override */
.carousel {
  border-radius: 28px;
  overflow: hidden;
}

.carousel-img {
  height: 520px;
  object-fit: cover;
  filter: brightness(0.65);
}

.carousel-caption {
  background: rgba(10, 13, 20, 0.75);
  backdrop-filter: blur(8px);
  border-radius: 18px;
  padding: 20px 28px;
}

.carousel-caption h5 {
  color: var(--neon-cyan);
}

.carousel-caption p {
  color: var(--text-muted);
}

/* ===========================
   Contact
=========================== */
.contact {
  padding: 120px 0;
}

.contact-box {
  background: linear-gradient(
    135deg,
    rgba(0, 234, 255, 0.15),
    rgba(139, 92, 246, 0.15)
  );
  padding: 60px;
  border-radius: 28px;
  text-align: center;
  max-width: 620px;
}

.contact-box h2 {
  margin-bottom: 12px;
}

.contact-box p {
  margin-bottom: 32px;
  color: var(--text-muted);
}