:root {
  --primary: #0A7AFF;
  --primary-dark: #0560CC;
  --primary-light: #3D95FF;
  --dark: #0B1121;
  --dark-2: #111827;
  --dark-3: #1F2937;
  --dark-card: #151D2E;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --white: #FFFFFF;
  --gradient-primary: linear-gradient(135deg, #0A7AFF 0%, #6C3AED 100%);
  --gradient-hero: linear-gradient(135deg, #0B1121 0%, #1a1040 50%, #0B1121 100%);
  --gradient-card: linear-gradient(145deg, rgba(15,25,50,0.8) 0%, rgba(10,15,35,0.9) 100%);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.3);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.2);
  --shadow-glow: 0 0 40px rgba(10,122,255,0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--dark);
  color: var(--gray-200);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  width: 100%;
}

img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
  width: 100%;
}

/* ============ NAVBAR ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  box-sizing: border-box;
}

.navbar.scrolled {
  background: rgba(11, 17, 33, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  height: 46px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-300);
  transition: var(--transition);
  position: relative;
}

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

.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: var(--gradient-primary) !important;
  color: var(--white) !important;
  padding: 10px 24px !important;
  border-radius: 50px !important;
  font-weight: 600 !important;
  transition: var(--transition) !important;
  box-shadow: 0 4px 15px rgba(10,122,255,0.3);
}

.nav-cta::after { display: none !important; }
.nav-cta:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 25px rgba(10,122,255,0.4) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO ============ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(10,122,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108,58,237,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(10,122,255,0.1);
  border: 1px solid rgba(10,122,255,0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease;
}

.hero-badge i { font-size: 0.75rem; }

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  animation: fadeInUp 0.8s ease 0.1s both;
}

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

.hero p {
  font-size: 1.2rem;
  color: var(--gray-400);
  max-width: 560px;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
}

.hero-stat p {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 0;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
  max-width: 100%;
  box-sizing: border-box;
  text-align: center;
  word-break: break-word;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(10,122,255,0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(10,122,255,0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.05);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.1);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-3px);
}

.btn-sm {
  padding: 12px 24px;
  font-size: 0.9rem;
}

.btn-white {
  background: var(--white);
  color: var(--dark);
}

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255,255,255,0.2);
}

/* ============ SECTIONS ============ */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 64px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--gray-400);
}

/* ============ COURSES ============ */
.courses {
  background: var(--dark-2);
  position: relative;
}

.courses::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(10,122,255,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.course-card {
  background: var(--gradient-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.course-card:hover {
  transform: translateY(-8px);
  border-color: rgba(10,122,255,0.2);
  box-shadow: var(--shadow-glow);
}

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

.course-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 24px;
  background: rgba(10,122,255,0.1);
  color: var(--primary);
}

.course-card:nth-child(2) .course-icon {
  background: rgba(16,185,129,0.1);
  color: #10B981;
}

.course-card:nth-child(3) .course-icon {
  background: rgba(244,114,182,0.1);
  color: #F472B6;
}

.course-card:nth-child(4) .course-icon {
  background: rgba(251,191,36,0.1);
  color: #FBBF24;
}

.course-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.course-card p {
  font-size: 0.92rem;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.course-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.course-topics span {
  padding: 4px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--gray-400);
}

.course-card .btn {
  width: 100%;
  justify-content: center;
}

.courses-grid--two {
  grid-template-columns: repeat(auto-fit, minmax(min(340px, 100%), 1fr));
}

/* ============ WHY US ============ */
.why-us {
  position: relative;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.why-card {
  text-align: center;
  padding: 40px 24px;
}

.why-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 20px;
  background: rgba(10,122,255,0.08);
  color: var(--primary);
  border: 1px solid rgba(10,122,255,0.15);
}

.why-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
}

/* ============ METHODOLOGY ============ */
.methodology {
  background: var(--dark-2);
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  position: relative;
}

.method-step {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}

.method-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  color: var(--white);
}

.method-step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.method-step p {
  font-size: 0.9rem;
  color: var(--gray-500);
}

/* ============ SERVICES ============ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.service-card:hover {
  border-color: rgba(10,122,255,0.15);
  transform: translateY(-4px);
}

.service-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 16px;
  display: block;
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.service-card p {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* ============ PORTFOLIO ============ */
.portfolio {
  background: var(--dark-2);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.portfolio-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.portfolio-img {
  height: 200px;
  background: var(--dark-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--primary);
  position: relative;
  overflow: hidden;
}

.portfolio-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, var(--dark-card));
}

.portfolio-info {
  padding: 24px;
}

.portfolio-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.portfolio-info span {
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============ PRICING ============ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--gradient-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
}

.pricing-card.featured {
  border-color: rgba(10,122,255,0.3);
  box-shadow: var(--shadow-glow);
}

.pricing-card.featured::before {
  content: 'Popular';
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--gradient-primary);
  color: var(--white);
  padding: 4px 16px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.pricing-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.pricing-card .price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-500);
}

.pricing-card .price-note {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 28px;
}

.pricing-features {
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--gray-300);
}

.pricing-features li i {
  color: var(--primary);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.pricing-card .btn { width: 100%; justify-content: center; }

/* ============ CTA ============ */
.cta-section {
  background: var(--dark-2);
  position: relative;
  overflow: hidden;
}

.cta-box {
  background: var(--gradient-primary);
  border-radius: var(--radius);
  padding: 80px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.03);
  border-radius: 50%;
}

.cta-box h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}

.cta-box p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 500px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 2;
}

.cta-box .btn {
  position: relative;
  z-index: 2;
}

/* ============ CONTACT ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info { display: flex; flex-direction: column; gap: 32px; }

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10,122,255,0.1);
  color: var(--primary);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 0.9rem;
  color: var(--gray-400);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-600);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(10,122,255,0.1);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ============ FOOTER ============ */
.footer {
  background: var(--dark-2);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 60px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img {
  height: 52px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--gray-500);
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.05);
  color: var(--gray-400);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: var(--white);
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--gray-500);
  padding: 4px 0;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* ============ ANIMATIONS ============ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ============ FLOATING ELEMENTS ============ */
.float-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.float-grid .dot {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(10,122,255,0.3);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); opacity: 0.3; }
  50% { transform: translateY(-20px); opacity: 0.8; }
}

/* ============ WHATSAPP BUTTON ============ */
.whatsapp-float {
  position: fixed;
  bottom: 80px;
  right: 24px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--white);
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: var(--transition);
  animation: pulse 2s ease infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37,211,102,0.5);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 30px rgba(37,211,102,0.6); }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 968px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75vw;
    max-width: 280px;
    height: 100vh;
    height: 100dvh;
    background: var(--dark-2);
    flex-direction: column;
    padding: 80px 24px 32px;
    gap: 20px;
    transition: var(--transition);
    border-left: 1px solid rgba(255,255,255,0.06);
    overflow-y: auto;
    z-index: 1001;
  }

  .nav-links.active { right: 0; }
  .hamburger { display: flex; z-index: 1002; }

  .nav-cta {
    width: 100%;
    text-align: center;
    justify-content: center;
    padding: 12px 20px !important;
    font-size: 0.85rem !important;
    box-sizing: border-box;
  }

  .hero-stats { gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .portfolio-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  section { padding: 64px 0; }

  .hero { min-height: auto; padding-top: 100px; padding-bottom: 60px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }

  .hero-stats { flex-wrap: wrap; gap: 16px; justify-content: center; }
  .hero-stat { min-width: 90px; text-align: center; }
  .hero-stat h3 { font-size: 1.5rem; }
  .hero-stat p { font-size: 0.75rem; }

  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; justify-content: center; box-sizing: border-box; }

  .section-header { margin-bottom: 40px; }
  .section-header h2 { font-size: 1.6rem; }
  .section-header p { font-size: 0.9rem; }

  .courses-grid { grid-template-columns: 1fr !important; }
  .why-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .why-card { padding: 24px 16px; }
  .services-grid { grid-template-columns: 1fr 1fr; }

  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 100%; }
  .portfolio-grid { grid-template-columns: 1fr; }

  .cta-box { padding: 40px 20px; }
  .cta-box h2 { font-size: 1.4rem; }

  .whatsapp-float { width: 48px; height: 48px; font-size: 1.3rem; right: 12px; bottom: 72px; }
}

@media (max-width: 400px) {
  .container { padding: 0 12px; }
  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 0.9rem; }
  .btn { padding: 12px 18px; font-size: 0.85rem; }
  .btn-sm { padding: 10px 16px; font-size: 0.8rem; }
  .why-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .nav-links { width: 100vw; max-width: 100vw; }
  .hero-stat h3 { font-size: 1.3rem; }
  .whatsapp-float { width: 44px; height: 44px; font-size: 1.2rem; right: 10px; bottom: 68px; }
}