/* ============================================================
   NIUAXI CAPACITACIÓN — Design System
   Brand: Dark Navy + Electric Blue
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --bg-primary:      #060b18;
  --bg-secondary:    #0a1020;
  --bg-card:         rgba(255,255,255,0.04);
  --bg-card-hover:   rgba(255,255,255,0.08);
  --border-card:     rgba(255,255,255,0.08);
  --border-glow:     rgba(37,99,235,0.35);

  --blue-primary:    #2563eb;
  --blue-bright:     #3b82f6;
  --blue-light:      #60a5fa;
  --blue-glow:       rgba(37,99,235,0.15);

  --green-primary:   #22c55e;
  --green-light:     #86efac;
  --green-glow:      rgba(34,197,94,0.15);

  --purple-primary:  #a855f7;
  --purple-light:    #d8b4fe;
  --purple-glow:     rgba(168,85,247,0.15);

  --text-primary:    #f1f5ff;
  --text-secondary:  #94a3b8;
  --text-muted:      #64748b;

  --gradient-hero:   linear-gradient(135deg, #060b18 0%, #0a1020 60%, #0f1a35 100%);
  --gradient-blue:   linear-gradient(135deg, #1d4ed8, #3b82f6);
  --gradient-text:   linear-gradient(90deg, #3b82f6, #60a5fa, #93c5fd);

  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-blue: 0 8px 32px rgba(37,99,235,0.25);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

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

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--blue-primary); border-radius: 3px; }

/* ── Background Grid Pattern ────────────────────────────────── */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.bg-glow-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, transparent 70%);
  top: -150px; right: -150px;
}

.bg-glow-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
  bottom: 10%; left: -100px;
}

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ── HEADER / NAV ───────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  background: rgba(2,6,23,0.80);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(2,6,23,0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(37,99,235,0.18);
  box-shadow: 0 4px 32px rgba(0,0,0,0.6);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}

.nav-logo:hover { opacity: 0.9; transform: scale(1.01); }

/* PNG logo image in nav */
.logo-img {
  height: 52px;
  width: auto;
  display: block;
  /* mix-blend-mode screen: makes white transparent on dark bg,
     preserving the blue icon and inverting the dark NIUAXI outline to white */
  mix-blend-mode: screen;
  filter: brightness(1.4) contrast(1.1);
  transition: var(--transition);
}

/* Legacy SVG icon (kept for fallback) */
.logo-icon {
  width: 36px;
  height: 36px;
}

.logo-wordmark {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.logo-badge {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue-light);
  background: rgba(37,99,235,0.15);
  border: 1px solid rgba(37,99,235,0.3);
  border-radius: 100px;
  padding: 3px 10px;
  margin-left: 2px;
  white-space: nowrap;
  animation: pulse-glow 3s ease-in-out infinite;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--blue-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { transform: scaleX(1); }

/* Back to main CTA */
.btn-back-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(37,99,235,0.5);
  color: var(--blue-light);
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.btn-back-home:hover {
  background: rgba(37,99,235,0.15);
  border-color: var(--blue-primary);
  color: var(--text-primary);
  transform: translateY(-1px);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-blue);
  color: #fff;
  box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(37,99,235,0.4);
}

.btn-primary:active { transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

.btn-pulse {
  animation: pulse-glow 2.5s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 8px 32px rgba(37,99,235,0.3); }
  50%       { box-shadow: 0 8px 48px rgba(37,99,235,0.6); }
}

/* ── HERO SECTION ───────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.3);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-bright);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero h1 .text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero Orbital Concept */
.hero-orbital {
  position: relative;
  width: 100%;
  max-width: 540px;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

/* Central Sphere */
.orbital-center {
  position: relative;
  width: 320px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

/*

.orbital-sphere {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(59, 130, 246, 0.25), rgba(6, 11, 24, 0.95));
  box-shadow: 0 0 60px rgba(37, 99, 235, 0.4), inset 0 0 40px rgba(59, 130, 246, 0.7);
  border: 1px solid rgba(96, 165, 250, 0.5);
  background-image: 
    repeating-linear-gradient(45deg, rgba(59, 130, 246, 0.08) 0, rgba(59, 130, 246, 0.08) 1px, transparent 1px, transparent 12px),
    repeating-linear-gradient(-45deg, rgba(59, 130, 246, 0.08) 0, rgba(59, 130, 246, 0.08) 1px, transparent 1px, transparent 12px);
  animation: spin-slow 30s linear infinite;
}
*/

.orbital-sphere::before{
    content:'';
    position:absolute;
    inset:12%;

    border-radius:50%;

    background:
        radial-gradient(
            circle,
            rgba(59,130,246,.25),
            transparent 70%
        );

    filter:blur(20px);
}

.orbital-sphere{
    position:absolute;
    inset:0;
    border-radius:50%;
    overflow:hidden;

    background:
        radial-gradient(
            circle at center,
            rgba(96,165,250,.35) 0%,
            rgba(37,99,235,.18) 35%,
            rgba(10,15,30,.85) 75%,
            rgba(3,6,12,1) 100%
        );

    box-shadow:
        0 0 120px rgba(59,130,246,.6),
        inset 0 0 60px rgba(96,165,250,.35);

    border:1px solid rgba(147,197,253,.25);
}

.orbital-sphere::after{
    content:'';
    position:absolute;
    inset:0;

    background:

        radial-gradient(circle at 18% 28%, #9fd4ff 0 2px, transparent 4px),
        radial-gradient(circle at 30% 12%, #9fd4ff 0 2px, transparent 4px),
        radial-gradient(circle at 72% 18%, #9fd4ff 0 2px, transparent 4px),
        radial-gradient(circle at 82% 38%, #9fd4ff 0 2px, transparent 4px),
        radial-gradient(circle at 70% 75%, #9fd4ff 0 2px, transparent 4px),
        radial-gradient(circle at 30% 80%, #9fd4ff 0 2px, transparent 4px),
        radial-gradient(circle at 12% 60%, #9fd4ff 0 2px, transparent 4px);

    filter:
        drop-shadow(0 0 6px #60a5fa)
        drop-shadow(0 0 12px #60a5fa);
}

@keyframes spin-slow {
  100% { transform: rotate(360deg); }
}

.orbital-text {
  position: relative;
  font-size: 4.5rem;
  font-weight: 900;
  color: #fff;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.5), 0 0 50px rgba(59, 130, 246, 1);
  z-index: 2;
  font-family: 'Inter', sans-serif;
  letter-spacing: -0.02em;
}

/* Orbital Rings */
.orbital-rings {
  position: absolute;
  inset: -80px;
  pointer-events: none;
}

.ring {
  position: absolute;
  top: 50%; left: 50%;
  border: 1px solid rgba(96, 165, 250, 0.25);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.1) inset;
}

.ring-1 {
  width: 100%; height: 35%;
  transform: translate(-50%, -50%) rotate(20deg);
}

.ring-2 {
  width: 100%; height: 35%;
  transform: translate(-50%, -50%) rotate(-20deg);
}

/*
.ring-3 {
  width: 25%; height: 100%;
  transform: translate(-50%, -50%) rotate(180deg);
}*/

/* Glowing dots on rings */
.ring::before, .ring::after {
  content: '';
  position: absolute;
  width: 6px; height: 6px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 12px 3px rgba(96, 165, 250, 0.9);
}
.ring-1::before { top: 0; left: 50%; transform: translate(-50%, -50%); }
.ring-1::after { bottom: 0; left: 50%; transform: translate(-50%, 50%); }
.ring-2::before { top: 50%; left: 0; transform: translate(-50%, -50%); }
.ring-2::after { top: 50%; right: 0; transform: translate(50%, -50%); }

/* Cards */
.orbital-card {
  position: absolute;
  width: 140px;
  background: rgba(6, 11, 24, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: 16px;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), inset 0 0 20px rgba(59, 130, 246, 0.15);
  z-index: 20;
  transition: var(--transition);
  animation: float-gentle 6s ease-in-out infinite;
}

.orbital-card:hover {
  transform: scale(1.05) translateY(-5px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.8), inset 0 0 30px rgba(59, 130, 246, 0.3);
  border-color: rgba(96, 165, 250, 0.8);
}

.card-tl { top: 0; left: 0; animation-delay: 0s; }
.card-tr { top: 0; right: 0; animation-delay: 1.5s; }
.card-bl { bottom: 0; left: 0; animation-delay: 3s; }
.card-br { bottom: 0; right: 0; animation-delay: 4.5s; }

.card-icon {
  width: 44px; height: 44px;
  margin-bottom: 12px;
  color: #fff;
  filter: drop-shadow(0 0 10px rgba(96, 165, 250, 0.8));
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon svg {
  width: 100%; height: 100%;
}

.card-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #f1f5ff;
  line-height: 1.3;
}

@keyframes float-gentle {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.stat-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(37,99,235,0.3);
  transform: translateX(4px);
}

.stat-icon {
  width: 44px; height: 44px;
  background: rgba(37,99,235,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.stat-text strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.stat-text span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ── SECTION UTILITIES ──────────────────────────────────────── */
section { padding: 100px 0; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-title .text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── COURSES GRID ───────────────────────────────────────────── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.course-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-blue);
  opacity: 0;
  transition: var(--transition);
}

.course-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(37,99,235,0.3);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(37,99,235,0.1);
}

.course-card:hover::before { opacity: 1; }

/* Level-specific styling */
.courses-grid a:nth-child(1)::before {
  background: linear-gradient(135deg, var(--green-primary), var(--green-light));
}

.courses-grid a:nth-child(1):hover {
  border-color: rgba(34, 197, 94, 0.4);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 20px rgba(34, 197, 94, 0.15);
}

.courses-grid a:nth-child(2)::before {
  background: linear-gradient(135deg, var(--purple-primary), var(--purple-light));
}

.courses-grid a:nth-child(2):hover {
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 20px rgba(168, 85, 247, 0.15);
}

.courses-grid a:nth-child(3)::before {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-bright));
}

.courses-grid a:nth-child(3):hover {
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 20px rgba(37, 99, 235, 0.15);
}

/* Level badge */
.course-level-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 20px;
  width: fit-content;
}

.badge-nivel1 { 
  background: rgba(34, 197, 94, 0.12); 
  color: #86efac; 
  border: 1px solid rgba(34, 197, 94, 0.3); 
}
.badge-nivel2 { 
  background: rgba(168, 85, 247, 0.12); 
  color: #d8b4fe; 
  border: 1px solid rgba(168, 85, 247, 0.3); 
}
.badge-nivel3 { 
  background: rgba(59, 130, 246, 0.12); 
  color: #93c5fd; 
  border: 1px solid rgba(59, 130, 246, 0.3); 
}

.course-emoji { font-size: 1.3rem; }

/* Course header with icon */
.course-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.course-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
  background: rgba(37,99,235,0.12);
  border: 1px solid rgba(37,99,235,0.25);
}

.courses-grid a:nth-child(1) .course-icon {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.25);
}

.courses-grid a:nth-child(2) .course-icon {
  background: rgba(168, 85, 247, 0.12);
  border-color: rgba(168, 85, 247, 0.25);
}

.courses-grid a:nth-child(3) .course-icon {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.25);
}

/* Level badge in header */
.course-header .course-level-badge {
  margin-bottom: 0;
}

.course-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.courses-grid a:nth-child(1) h3 {
  color: var(--green-light);
}

.courses-grid a:nth-child(2) h3 {
  color: var(--purple-light);
}

.courses-grid a:nth-child(3) h3 {
  color: var(--blue-light);
}

.course-card .course-subtitle {
  font-size: 0.85rem;
  color: var(--blue-light);
  font-weight: 600;
  margin-bottom: 16px;
}

.courses-grid a:nth-child(1) .course-subtitle {
  color: var(--green-light);
}

.courses-grid a:nth-child(2) .course-subtitle {
  color: var(--purple-light);
}

.courses-grid a:nth-child(3) .course-subtitle {
  color: var(--blue-light);
}

.course-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
  flex-grow: 1;
}

/* Course competencias */
.course-competencias {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.competencia-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.check-icon {
  color: var(--green-primary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.courses-grid a:nth-child(1) .check-icon {
  color: var(--green-light);
}

.courses-grid a:nth-child(2) .check-icon {
  color: var(--purple-light);
}

.courses-grid a:nth-child(3) .check-icon {
  color: var(--blue-light);
}

/* Course meta */
.course-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 28px;
}

.meta-item {
  background: rgba(37,99,235,0.07);
  border: 1px solid rgba(37,99,235,0.12);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.courses-grid a:nth-child(1) .meta-item {
  background: rgba(34, 197, 94, 0.07);
  border-color: rgba(34, 197, 94, 0.12);
}

.courses-grid a:nth-child(2) .meta-item {
  background: rgba(168, 85, 247, 0.07);
  border-color: rgba(168, 85, 247, 0.12);
}

.courses-grid a:nth-child(3) .meta-item {
  background: rgba(59, 130, 246, 0.07);
  border-color: rgba(59, 130, 246, 0.12);
}

.meta-icon {
  font-size: 1.2rem;
  display: block;
}

.meta-item .meta-value {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}


.meta-item .meta-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 2px;
}

.course-card-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-light);
  margin-top: auto;
  padding-top: 20px;
  transition: var(--transition);
}

.courses-grid a:nth-child(1) .course-card-link {
  color: var(--green-light);
}

.courses-grid a:nth-child(2) .course-card-link {
  color: var(--purple-light);
}

.courses-grid a:nth-child(3) .course-card-link {
  color: var(--blue-light);
}

.course-card:hover .course-card-link {
  gap: 10px;
}

/* ── DIAGNOSTIC CTA SECTION ─────────────────────────────────── */
.diagnostico-section {
  padding: 80px 0;
}

.diagnostico-card {
  background: linear-gradient(135deg, rgba(37,99,235,0.08) 0%, rgba(15,26,53,0.8) 100%);
  border: 1px solid rgba(37,99,235,0.25);
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.diagnostico-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(37,99,235,0.4), transparent 50%, rgba(59,130,246,0.2));
  z-index: 0;
  pointer-events: none;
}

.diagnostico-card > * { position: relative; z-index: 1; }

.diagnostico-icon {
  font-size: 3.5rem;
  margin-bottom: 24px;
  display: block;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.diagnostico-card h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.diagnostico-card p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.btn-diagnostico {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--gradient-blue);
  color: #fff;
  padding: 20px 44px;
  border-radius: 100px;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 40px rgba(37,99,235,0.4);
  transition: var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
  animation: pulse-glow 2.5s ease-in-out infinite;
}

.btn-diagnostico:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 16px 56px rgba(37,99,235,0.55);
}

.btn-diagnostico-arrow {
  transition: var(--transition);
}

.btn-diagnostico:hover .btn-diagnostico-arrow {
  transform: translateX(6px);
}

.diagnostico-hint {
  margin-top: 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ── HOW IT WORKS ────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37,99,235,0.4), transparent);
}

.step-item {
  text-align: center;
  padding: 32px 20px;
}

.step-number {
  width: 56px; height: 56px;
  background: var(--gradient-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 auto 20px;
  position: relative;
  box-shadow: 0 4px 20px rgba(37,99,235,0.3);
}

.step-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.step-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── COMPETENCIES / OUTCOMES ────────────────────────────────── */
.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.outcome-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.outcome-item:hover {
  background: var(--bg-card-hover);
  border-color: rgba(37,99,235,0.25);
}

.outcome-check {
  width: 24px; height: 24px;
  background: rgba(37,99,235,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--blue-light);
  font-size: 0.75rem;
  font-weight: 800;
}

.outcome-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ── COURSE DETAIL PAGE ─────────────────────────────────────── */
.curso-hero {
  padding: 140px 0 80px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.breadcrumb a { color: var(--blue-light); transition: var(--transition); }
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb span { color: var(--text-muted); }

.curso-hero-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
}

.curso-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 12px;
}

.curso-subtitle-hero {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--blue-light);
  margin-bottom: 24px;
}

.curso-hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 540px;
}

/* Sidebar card */
.curso-sidebar-card {
  background: var(--bg-card);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: sticky;
  top: 100px;
}

.sidebar-meta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.sidebar-meta-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.sidebar-meta-list .meta-icon {
  font-size: 1.1rem;
  width: 28px;
  text-align: center;
}

.sidebar-meta-list strong { color: var(--text-primary); }
.sidebar-meta-list span { color: var(--text-secondary); }

.sidebar-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.07);
  margin: 24px 0;
}

/* Modules accordion */
.modulos-section { padding-bottom: 0; }

.modulos-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modulo-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.modulo-card:hover { border-color: rgba(37,99,235,0.3); }

.modulo-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 28px;
  cursor: pointer;
  user-select: none;
}

.modulo-num {
  width: 40px; height: 40px;
  background: rgba(37,99,235,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--blue-light);
  flex-shrink: 0;
}

.modulo-info { flex: 1; }

.modulo-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.modulo-info span {
  font-size: 0.78rem;
  color: var(--blue-light);
  font-weight: 600;
}

.modulo-toggle {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

.modulo-card.active .modulo-toggle { transform: rotate(180deg); }

.modulo-body {
  padding: 0 28px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.modulo-card.active .modulo-body {
  padding: 0 28px 24px;
  max-height: 400px;
}

.modulo-topics {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modulo-topics li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 4px;
}

.modulo-topics li::before {
  content: '›';
  color: var(--blue-light);
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: -1px;
}

/* ── FOOTER ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 48px 0 32px;
  margin-top: 40px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}

.footer-logo:hover { opacity: 0.85; }

.footer-logo-img {
  height: 40px;
  width: auto;
  display: block;
  mix-blend-mode: screen;
  filter: brightness(1.4) contrast(1.1);
  transition: var(--transition);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
}

.footer-copy a {
  color: var(--blue-light);
  transition: var(--transition);
}

.footer-copy a:hover { color: var(--text-primary); }

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover { color: var(--blue-light); }

/* ── DIAGNOSTICO PAGE ───────────────────────────────────────── */
.diagnostico-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  text-align: center;
}

.diagnostico-page-inner {
  max-width: 600px;
}

.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  color: #fbbf24;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.diagnostico-page h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.diagnostico-page p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
}

/* ── FEATURES SECTION ───────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  list-style: none;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(37,99,235,0.12);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(37,99,235,0.25);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
  display: block;
}

.feature-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ── ANIMATIONS ─────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .courses-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid::before { display: none; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-orbital { transform: scale(0.85); margin: 20px auto; }
  .curso-hero-inner { grid-template-columns: 1fr; }
  .curso-sidebar-card { position: static; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: rgba(6,11,24,0.97);
    backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
    gap: 40px;
    z-index: 999;
  }
  .nav-links.open a { font-size: 1.2rem; }
  .nav-toggle { display: flex; z-index: 1001; }

  .hero { padding: 100px 0 60px; }
  .courses-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .outcomes-grid { grid-template-columns: 1fr; }
  .diagnostico-card { padding: 48px 28px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .btn-back-home { display: none; }
  section { padding: 64px 0; }
}