:root {
  --navy: #0e1a3a;
  --navy-dark: #05070f;
  --navy-deep: #02030a;
  --purple: #8b5cf6;
  --purple-light: #a78bfa;
  --cyan: #22d3ee;
  --bg: #05070f;
  --card-bg: rgba(255, 255, 255, 0.04);
  --text: #eef0fb;
  --text-muted: #97a0c3;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(167, 139, 250, 0.6);
  --radius: 16px;
  --max-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  position: relative;
  overflow-x: hidden;
}

.watermark {
  position: fixed;
  z-index: -1;
  pointer-events: none;
  bottom: -8vw;
  right: -6vw;
  width: 46vw;
  min-width: 420px;
  max-width: 760px;
  aspect-ratio: 1 / 1;
  border: 1.4vw solid rgba(139, 92, 246, 0.14);
  border-radius: 50%;
}

.watermark::before {
  content: "iP";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -55%);
  font-size: 22vw;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.22;
}

img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Ambient background glows */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
  pointer-events: none;
}

.bg-glow-1 {
  top: -10%;
  left: -10%;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.35), transparent 70%);
}

.bg-glow-2 {
  bottom: -15%;
  right: -10%;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.22), transparent 70%);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  color: #04050b;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 8px 30px rgba(139, 92, 246, 0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15), 0 12px 40px rgba(139, 92, 246, 0.6);
}

/* Header */
.site-header {
  padding: 28px 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  background: rgba(5, 7, 15, 0.6);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header h2 {
  margin: 0 0 6px;
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--text);
}

.site-header .dot { color: var(--purple-light); }

.site-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Method */
.method {
  padding: 100px 0;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.method-grid[hidden],
.subview[hidden] {
  display: none;
}

.method-card {
  position: relative;
  background: var(--card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  text-align: left;
  font-family: inherit;
  color: var(--text);
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.method-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 0%, rgba(139, 92, 246, 0.18), transparent 60%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.method-card:hover,
.method-card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35), 0 0 30px rgba(139, 92, 246, 0.25);
  outline: none;
}

.method-card:hover::before,
.method-card:focus-visible::before {
  opacity: 1;
}

.method-icon {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 14px;
}

.method-card h3 {
  color: #fff;
  margin: 0 0 10px;
  font-size: 1.15rem;
  position: relative;
}

.method-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  position: relative;
}

.method-arrow {
  position: absolute;
  right: 22px;
  bottom: 22px;
  font-size: 1.2rem;
  color: var(--purple-light);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.method-card:hover .method-arrow,
.method-card:focus-visible .method-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Subview (e.g. Treinamento) */
.subview-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  padding: 10px 18px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.subview-back:hover,
.subview-back:focus-visible {
  border-color: var(--border-hover);
  color: var(--purple-light);
  transform: translateX(-3px);
  outline: none;
}

.subview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.subview-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.subview-nav .subview-back {
  margin-bottom: 0;
}

.subview-iframe #quiz-frame {
  width: 100%;
  height: 80vh;
  min-height: 640px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--navy-dark);
}

/* CTA */
.cta {
  padding: 90px 0;
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.08), transparent);
}

.cta h2 {
  font-size: 2.1rem;
  margin: 0 0 14px;
  color: #fff;
}

.cta p {
  color: var(--text-muted);
  margin: 0 0 32px;
  font-size: 1.05rem;
}

/* Footer */
.site-footer {
  padding: 44px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
}

.footer-logo {
  height: 34px;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.footer-contacts {
  list-style: none;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0;
  margin: 0;
}

.footer-contacts a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-contacts a:hover { color: var(--purple-light); }

.footer-social {
  display: flex;
  gap: 14px;
}

.footer-social a {
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.footer-social a:hover {
  color: var(--purple-light);
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
}

.footer-copy {
  font-size: 0.8rem;
  color: #565e80;
  margin: 4px 0 0;
}

/* Responsive */
@media (max-width: 640px) {
  .method { padding: 70px 0; }
  .cta { padding: 70px 0; }
  .bg-glow { display: none; }
}