/* =====================================================================
 *  Consultoria Educacional — Landing page
 *
 *  Design: fundo escuro, tipografia Inter, acento dourado/violeta.
 *  Tudo em CSS puro para não depender de build nem de framework.
 * ===================================================================== */

:root {
  --bg:            #0a0a0f;
  --bg-elev:       #12121a;
  --border:        rgba(255,255,255,.08);
  --text:          #f5f5f7;
  --text-mute:     #a1a1aa;
  --accent:        #f5b400;   /* dourado institucional */
  --accent-soft:   #ffd469;
  --violet:        #7c3aed;   /* violeta para brilhos e realces */
  --violet-soft:   #a78bfa;
  --gradient:      linear-gradient(135deg, #f5b400 0%, #ff8a3d 100%);
  --radius:        18px;
  --shadow-lift:   0 24px 60px -20px rgba(124, 58, 237, .35);
  --ease:          cubic-bezier(.16,.84,.44,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-feature-settings: 'ss01', 'cv11';
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; }

/* --------------------------------------------------------------------
   Botões
   -------------------------------------------------------------------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  padding: 1rem 1.8rem;
  border-radius: 999px;
  background: var(--gradient);
  color: #1a1207;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 30px -8px rgba(245, 180, 0, .5);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
  will-change: transform;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -10px rgba(245, 180, 0, .7);
}
.btn-primary:active { transform: translateY(0); }

.btn-hero { margin-top: 2rem; }

/* --------------------------------------------------------------------
   Nav
   -------------------------------------------------------------------- */
.nav {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
}
.nav-cta {
  padding: .55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: .875rem;
  font-weight: 600;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.nav-cta:hover {
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.2);
}

/* --------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 8rem 2rem 6rem;
  overflow: hidden;
  isolation: isolate;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
  animation: fadeUp 1s var(--ease) both;
}
.hero-tag {
  display: inline-block;
  padding: .4rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(245, 180, 0, .08);
  color: var(--accent-soft);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0;
}
.hero-highlight {
  background: linear-gradient(135deg, var(--accent) 0%, var(--violet-soft) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}
.hero-sub {
  color: var(--text-mute);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  max-width: 640px;
  margin: 1.75rem auto 0;
}
.hero-scroll-hint {
  margin-top: 3rem;
  font-size: .8rem;
  color: var(--text-mute);
  letter-spacing: .1em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 1s both, blink 3s ease-in-out 2s infinite;
}

.hero-glow {
  position: absolute;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
  opacity: .5;
  pointer-events: none;
}
.hero-glow-1 { top: -10%; left: -10%; background: radial-gradient(circle, var(--violet), transparent 70%); }
.hero-glow-2 { bottom: -20%; right: -10%; background: radial-gradient(circle, var(--accent), transparent 70%); }

/* --------------------------------------------------------------------
   Scroll interativo (efeito Apple)
   -------------------------------------------------------------------- */
.scroll-scene {
  /*
   * Altura de 400vh: dá espaço de scroll para o vídeo avançar
   * até o fim enquanto o container fica preso no topo (sticky).
   */
  position: relative;
  height: 400vh;
  background: #000;
}
.scroll-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}
.scroll-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  /* Para o Safari acompanhar o scrubbing sem congelar. */
  transform: translateZ(0);
}
.scroll-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,.3) 50%, rgba(0,0,0,.7) 100%),
    linear-gradient(180deg, rgba(0,0,0,.4) 0%, transparent 30%, transparent 70%, rgba(0,0,0,.6) 100%);
  z-index: 1;
}
.scroll-texts {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 2rem;
  z-index: 2;
}
.scroll-text {
  position: absolute;
  text-align: center;
  max-width: 800px;
  padding: 0 1.5rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .5s var(--ease), transform .8s var(--ease);
  pointer-events: none;
}
.scroll-text.is-active {
  opacity: 1;
  transform: translateY(0);
}
.scroll-text h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 1rem;
  text-shadow: 0 4px 30px rgba(0,0,0,.6);
}
.scroll-text p {
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  color: rgba(255,255,255,.85);
  max-width: 600px;
  margin: 0 auto;
  text-shadow: 0 2px 20px rgba(0,0,0,.7);
}

.scroll-progress {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: .6rem;
}
.scroll-progress-dot {
  width: 30px;
  height: 3px;
  border-radius: 999px;
  background: rgba(255,255,255,.2);
  transition: background .4s var(--ease), width .4s var(--ease);
}
.scroll-progress-dot.is-active {
  background: var(--accent);
  width: 50px;
}

/* --------------------------------------------------------------------
   Benefícios
   -------------------------------------------------------------------- */
.benefits {
  padding: 8rem 2rem;
  background: linear-gradient(180deg, #000 0%, var(--bg) 100%);
}
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.section-tag {
  color: var(--accent);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 3rem;
  max-width: 800px;
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.benefit-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  transition: transform .4s var(--ease), border-color .4s var(--ease), background .4s var(--ease);
  position: relative;
  overflow: hidden;
}
.benefit-card:hover {
  transform: translateY(-6px);
  border-color: rgba(245, 180, 0, .25);
  background: linear-gradient(180deg, var(--bg-elev) 0%, rgba(245, 180, 0, .04) 100%);
}
.benefit-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(245, 180, 0, .15), rgba(124, 58, 237, .15));
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.benefit-icon svg { width: 28px; height: 28px; }
.benefit-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 .5rem;
}
.benefit-card p {
  color: var(--text-mute);
  font-size: .95rem;
  margin: 0;
}

/* --------------------------------------------------------------------
   CTA final
   -------------------------------------------------------------------- */
.cta-final {
  position: relative;
  padding: 10rem 2rem;
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}
.cta-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 70vw;
  height: 70vw;
  max-width: 900px;
  max-height: 900px;
  border-radius: 50%;
  background: radial-gradient(circle,
    rgba(245, 180, 0, .18) 0%,
    rgba(124, 58, 237, .08) 40%,
    transparent 70%);
  filter: blur(60px);
  z-index: -1;
}
.cta-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 auto;
  max-width: 800px;
}
.cta-sub {
  color: var(--text-mute);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  max-width: 600px;
  margin: 1.5rem auto 3rem;
}
.btn-cta { padding: 1.2rem 2.4rem; font-size: 1.05rem; }
.cta-note {
  margin-top: 1.5rem;
  font-size: .8rem;
  color: var(--text-mute);
}

/* --------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------- */
.footer {
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-mute);
  font-size: .85rem;
  border-top: 1px solid var(--border);
}

/* --------------------------------------------------------------------
   Animações
   -------------------------------------------------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes blink {
  0%, 100% { opacity: .4; }
  50%      { opacity: 1; }
}

/* --------------------------------------------------------------------
   Reduced motion — respeita quem prefere menos movimento
   -------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* --------------------------------------------------------------------
   Mobile
   -------------------------------------------------------------------- */
@media (max-width: 640px) {
  .nav { padding: 1rem 1.25rem; }
  .hero { padding: 6rem 1.25rem 4rem; }
  .benefits { padding: 5rem 1.25rem; }
  .cta-final { padding: 6rem 1.25rem; }
  .benefit-card { padding: 2rem 1.5rem; }
  .btn-primary { padding: .9rem 1.5rem; font-size: .95rem; }
  .btn-cta { padding: 1rem 1.8rem; }
}