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

:root {
  --bg: #070b14;
  --bg-alt: #0d1b2a;
  --cyan: #00d4ff;
  --cyan-bright: #00e5ff;
  --cyan-glow: rgba(0, 212, 255, 0.15);
  --green: #00e676;
  --text: #e8e8e8;
  --text-muted: #9aa0a6;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--cyan);
  color: #000;
  padding: 8px 16px;
  z-index: 9999;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
}
.skip-link:focus { top: 0; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* === NAV === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(7, 11, 20, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.nav-logo { font-weight: 900; font-size: 1.1rem; color: var(--cyan); letter-spacing: -0.5px; }
.nav-toggle { display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); transition: 0.3s; }
.nav-menu { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: rgba(7, 11, 20, 0.97); padding: 20px; gap: 12px; border-bottom: 1px solid rgba(0, 212, 255, 0.1); }
.nav-menu a { color: var(--text); text-decoration: none; font-weight: 600; font-size: 1rem; padding: 8px 0; transition: color 0.2s; }
.nav-menu a:hover { color: var(--cyan); }
.nav-menu .btn { display: inline-block; text-align: center; }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-menu { display: flex; flex-direction: row; position: static; background: none; padding: 0; gap: 24px; border: none; }
  .nav-menu a { font-size: 0.9rem; }
}

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--cyan); color: #000; font-weight: 800; text-decoration: none;
  border: none; border-radius: 6px; cursor: pointer; transition: all 0.25s;
  font-family: var(--font);
}
.btn:hover { background: var(--cyan-bright); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0, 212, 255, 0.3); }
.btn-primary { padding: 12px 28px; font-size: 1rem; }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; }

/* === WA FLOAT === */
.wa-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 2000;
  width: 56px; height: 56px; border-radius: 50%; border: none; cursor: pointer;
  background: #00e676; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 230, 118, 0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  animation: pulse 2s infinite;
}
.wa-float:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(0, 230, 118, 0.6); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(0, 230, 118, 0.4); }
  50% { box-shadow: 0 4px 35px rgba(0, 230, 118, 0.7); }
}
@media (min-width: 768px) { .wa-float { width: 64px; height: 64px; bottom: 30px; right: 30px; } }

/* === HERO === */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; background: var(--bg);
}
.hero-video {
  position: absolute; top: 50%; left: 50%;
  width: 100%; height: 100%;
  object-fit: cover; transform: translate(-50%, -50%);
  z-index: 1;
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(180deg, rgba(7,11,20,0.7) 0%, rgba(7,11,20,0.95) 100%);
}
.hero-content {
  position: relative; z-index: 3; text-align: center; padding: 120px 0 80px;
}
.hero-name {
  font-size: clamp(2.4rem, 8vw, 4.5rem); font-weight: 900;
  letter-spacing: -1px; margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, var(--cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-headline {
  font-size: clamp(1rem, 3vw, 1.5rem); font-weight: 600;
  color: var(--text-muted); max-width: 600px; margin: 0 auto 32px;
}
.hero-content .btn { margin-top: 8px; }

/* === SECTIONS === */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-tag {
  display: inline-block; font-size: 0.8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 3px; color: var(--cyan);
  margin-bottom: 12px;
}
.section h2 {
  font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 900; margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.section-desc { color: var(--text-muted); max-width: 600px; margin-bottom: 40px; font-size: 1.05rem; }

/* === ABOUT === */
.about-grid {
  display: grid; grid-template-columns: 1fr; gap: 32px; align-items: center;
}
.about-img img {
  width: 100%; aspect-ratio: 3/4; object-fit: cover; border-radius: 12px;
  border: 2px solid rgba(0, 212, 255, 0.2);
}
.about-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 1rem; }

@media (min-width: 768px) {
  .about-grid { grid-template-columns: 1fr 1fr; gap: 48px; }
}

/* === CARDS === */
.cards-grid { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 40px; }
.card {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(0, 212, 255, 0.08);
  border-radius: 12px; padding: 32px 24px; text-align: center;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(0, 212, 255, 0.3); box-shadow: 0 12px 40px rgba(0, 212, 255, 0.08); }
.card-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 50%; background: var(--cyan-glow);
  color: var(--cyan); font-weight: 900; font-size: 1.2rem; margin-bottom: 16px;
}
.card h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
@media (min-width: 768px) { .cards-grid { grid-template-columns: repeat(3, 1fr); } }

/* === STEPS === */
.steps-grid { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 40px; }
.step {
  display: flex; gap: 20px; align-items: flex-start;
  background: rgba(255,255,255,0.02); border: 1px solid rgba(0, 212, 255, 0.06);
  border-radius: 12px; padding: 24px; transition: border-color 0.2s;
}
.step:hover { border-color: rgba(0, 212, 255, 0.2); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; border-radius: 50%; background: var(--cyan);
  color: #000; font-weight: 900; font-size: 1rem; flex-shrink: 0;
}
.step h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 6px; }
.step p { color: var(--text-muted); font-size: 0.95rem; }
@media (min-width: 768px) { .steps-grid { grid-template-columns: repeat(2, 1fr); } }

/* === DIFFERENTIALS === */
.diff-grid { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 40px; }
.diff-item {
  background: rgba(255,255,255,0.02); border: 1px solid rgba(0, 212, 255, 0.06);
  border-radius: 12px; padding: 32px 24px; text-align: center; transition: transform 0.2s;
}
.diff-item:hover { transform: translateY(-3px); }
.diff-icon { margin-bottom: 16px; }
.diff-item h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 8px; }
.diff-item p { color: var(--text-muted); font-size: 0.95rem; }
@media (min-width: 768px) { .diff-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .diff-grid { grid-template-columns: repeat(3, 1fr); } }

/* === DECORATIVE IMAGES === */
.images-showcase {
  padding: 40px 0;
  background: var(--bg-alt);
}
.visual-row {
  display: flex; gap: 20px; justify-content: center; flex-wrap: wrap;
}
.visual-block img {
  width: 100%; max-width: 340px; height: 220px; object-fit: cover;
  border-radius: 12px; border: 1px solid rgba(0, 212, 255, 0.15);
  transition: transform 0.3s, border-color 0.3s;
}
.visual-block img:hover {
  transform: scale(1.05); border-color: rgba(0, 212, 255, 0.4);
}

/* === COMPARATIVO === */
.comparativo-grid {
  display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 40px;
}
.comparativo-item {
  border-radius: 12px; padding: 40px 32px; text-align: center;
  transition: transform 0.3s;
}
.comparativo-item:hover { transform: translateY(-4px); }
.comparativo-yes {
  background: rgba(0, 230, 118, 0.08);
  border: 1px solid rgba(0, 230, 118, 0.2);
}
.comparativo-no {
  background: rgba(255, 82, 82, 0.08);
  border: 1px solid rgba(255, 82, 82, 0.2);
}
.comparativo-icon { margin-bottom: 20px; display: flex; justify-content: center; }
.comparativo-item h3 { font-size: 1.3rem; font-weight: 800; margin-bottom: 16px; }
.comparativo-yes h3 { color: var(--green); }
.comparativo-no h3 { color: #ff5252; }
.comparativo-item ul { list-style: none; padding: 0; }
.comparativo-item ul li {
  color: var(--text-muted); font-size: 0.95rem; padding: 8px 0;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
@media (min-width: 768px) {
  .comparativo-grid { grid-template-columns: 1fr 1fr; }
}

/* === CTA SECTION === */
.cta-section { text-align: center; padding: 100px 0; background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%); }
.cta-section h2 { font-size: clamp(1.8rem, 5vw, 3rem); margin-bottom: 16px; }
.cta-section p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }

/* === FOOTER === */
.footer { padding: 40px 0; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-inner { text-align: center; }
.footer-links { display: flex; justify-content: center; gap: 32px; margin-bottom: 20px; }
.footer-link {
  display: flex; align-items: center; gap: 8px; color: var(--text); text-decoration: none;
  font-weight: 600; font-size: 0.95rem; transition: color 0.2s;
}
.footer-link:hover { color: var(--cyan); }
.footer-copy { color: var(--text-muted); font-size: 0.8rem; }

/* === SCROLL REVEAL === */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s, transform 0.6s; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}