:root{
  --bg:#0b0c10;
  --panel:#12141b;
  --panel2:#0f1117;
  --text:#ffffff;
  --muted:#d4d6e0;
  --line:rgba(255,255,255,.10);
  --accent:#00a8e1;   /* “Prime blue” */
  --accent2:#5be7c4;
  --radius:16px;
  --shadow:0 16px 40px rgba(0,0,0,.45);
  --max:1180px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(0,168,225,.20), transparent 60%),
    radial-gradient(900px 450px at 100% 0%, rgba(91,231,196,.10), transparent 55%),
    var(--bg);
}

/* Layout */
.wrap{max-width:var(--max); margin:0 auto; padding:20px 18px 70px}

/* Topbar */
.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: rgba(11,12,16,.65);
  border-bottom:1px solid var(--line);
}
.topbar .inner{
  max-width:var(--max); margin:0 auto;
  padding:14px 18px;
  display:flex; align-items:center; justify-content:space-between; gap:14px;
}
.brand{
  display:flex; align-items:center; gap:10px; font-weight:800;
  letter-spacing:.2px;
}
.brand .dot{
  width:10px; height:10px; border-radius:50%;
  background:var(--accent);
  box-shadow: 0 0 0 6px rgba(0,168,225,.12);
}
.nav{
  display:flex; gap:14px; flex-wrap:wrap; align-items:center;
}
.nav a{
  color:var(--muted); text-decoration:none; font-weight:600;
  padding:8px 10px; border-radius:999px;
}
.nav a:hover{color:var(--text); background:rgba(255,255,255,.06)}
.nav a.active{color:var(--text); background:rgba(0,168,225,.18); border:1px solid rgba(0,168,225,.22)}

/* Hero */
.hero{
  margin-top:18px;
  border:1px solid var(--line);
  border-radius:24px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)),
    radial-gradient(900px 420px at 20% 10%, rgba(0,168,225,.18), transparent 55%),
    rgba(0,0,0,.18);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.hero .content{
  padding:26px 22px;
  display:grid; gap:16px;
}
.hero h1{margin:0; font-size:clamp(1.6rem, 3vw, 2.4rem); letter-spacing:-.02em}
.hero p{margin:0; color:var(--muted); max-width:72ch}
.hero .actions{display:flex; gap:10px; flex-wrap:wrap; margin-top:6px}
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:10px 14px;
  border-radius:999px;
  text-decoration:none;
  font-weight:800;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--text);
}
.btn:hover{background:rgba(255,255,255,.10)}
.btn.primary{
  background: rgba(0,168,225,.20);
  border-color: rgba(0,168,225,.30);
}
.btn.primary:hover{background: rgba(0,168,225,.28)}
.pill{
  display:inline-flex; align-items:center;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(0,0,0,.18);
  color:var(--muted);
  font-size:.92rem;
  width:fit-content;
}

/* Sections */
.section{margin-top:26px}
.section-header{
  display:flex; align-items:end; justify-content:space-between; gap:12px; flex-wrap:wrap;
  margin-bottom:12px;
}
.section-title{margin:0; font-size:1.15rem}
.section-sub{margin:0; color:var(--muted); font-size:.95rem}

/* Horizontal row “Prime style” */
.row{
  display:flex; gap:14px;
  overflow-x:auto;
  padding-bottom:10px;
  scroll-snap-type:x mandatory;
}
.row::-webkit-scrollbar{height:10px}
.row::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12); border-radius:999px}
.card{
  flex:0 0 auto;
  width:210px;
  scroll-snap-align:start;
  border:1px solid var(--line);
  border-radius:18px;
  background: rgba(0,0,0,.18);
  box-shadow: 0 12px 30px rgba(0,0,0,.35);
  overflow:hidden;
  transition: transform .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.card:hover{
  transform: translateY(-4px) scale(1.02);
  border-color: rgba(0,168,225,.35);
  box-shadow: 0 18px 44px rgba(0,0,0,.5);
}
.poster{
  height:122px;
  background:
    radial-gradient(520px 160px at 30% 20%, rgba(0,168,225,.30), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  display:flex; align-items:end;
  padding:12px;
}
.poster .tag{
  font-size:.78rem;
  color: rgba(255,255,255,.92);
  padding:4px 8px;
  border-radius:999px;
  background: rgba(0,0,0,.38);
  border:1px solid rgba(255,255,255,.12);
}
.card .body{padding:12px}
.card h3{margin:0 0 6px; font-size:1.02rem}
.card p{margin:0; color:var(--muted); font-size:.92rem; line-height:1.35}
.card a{
  display:inline-flex; margin-top:10px;
  color:var(--accent); text-decoration:none; font-weight:800;
}

/* Footer */
.footer{
  margin-top:30px;
  color:var(--muted);
  text-align:center;
  font-size:.92rem;
}

/* Responsive */
@media (min-width:900px){
  .hero .content{grid-template-columns: 1.3fr .7fr; align-items:center}
}


/* Hero Main - Página Inicial */
.hero-main {
  padding: 60px 0;
}

.hero-main .subtitle {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent2);
  margin: 10px 0 20px;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 700px;
  margin-bottom: 30px;
}

.quote-main {
  border-left: 4px solid var(--accent);
  padding-left: 20px;
  margin: 30px 0;
  font-style: italic;
  font-size: 1.2rem;
  color: var(--accent2);
  font-weight: 500;
}

/* Blocks Grid */
.blocks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.block-card .poster {
  position: relative;
  height: 140px;
  background: linear-gradient(135deg, var(--panel2) 0%, var(--panel) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
}

.block-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.3;
  line-height: 1;
}

.block-card .tag {
  position: absolute;
  top: 12px;
  right: 12px;
}

/* Principles Section */
.section-principles {
  background: var(--panel2);
  border-radius: var(--radius);
  padding: 40px 20px;
  margin-top: 60px;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.principle-card {
  text-align: center;
  padding: 20px;
}

.principle-icon {
  font-size: 3rem;
  margin-bottom: 15px;
}

.principle-card h3 {
  font-size: 1.2rem;
  margin: 10px 0;
  color: var(--accent2);
}

.principle-card p {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
}

/* Questions Section */
.section-questions {
  margin-top: 60px;
  padding: 60px 20px;
  background: linear-gradient(135deg, rgba(0,168,225,.05) 0%, rgba(91,231,196,.05) 100%);
  border-radius: var(--radius);
}

.content-centered {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.questions-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.question-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--panel);
  border-radius: 12px;
  text-align: left;
}

.question-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.4;
  min-width: 60px;
  text-align: center;
}

.question-item h3 {
  margin: 0;
  font-size: 1.3rem;
  color: var(--text);
}

/* Responsive */
@media (max-width: 768px) {
  .blocks-grid {
    grid-template-columns: 1fr;
  }
  
  .principles-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-main .subtitle {
    font-size: 1.2rem;
  }
  
  .quote-main {
    font-size: 1rem;
  }
  
  .question-item {
    flex-direction: column;
    text-align: center;
  }
}


/* Navigation between blocks */
.navigation-blocks {
  margin-top: 60px;
}

.nav-blocks {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.nav-block-link {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px 25px;
  background: var(--panel);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text);
  transition: all 0.3s ease;
  flex: 1;
  max-width: 400px;
}

.nav-block-link:hover {
  background: var(--panel2);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,.3);
}

.nav-block-link.prev {
  justify-content: flex-start;
}

.nav-block-link.next {
  justify-content: flex-end;
  margin-left: auto;
}

.nav-arrow {
  font-size: 1.5rem;
  color: var(--accent);
}

.nav-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 5px;
}

.nav-title {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

@media (max-width: 768px) {
  .nav-blocks {
    flex-direction: column;
  }
  
  .nav-block-link {
    max-width: 100%;
  }
  
  .nav-block-link.next {
    margin-left: 0;
  }
}