/* ============================================
   VERÓNICA HODOS — Premium English Teaching
   Design System & Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --primary: #1E2A38;
  --primary-light: #2a3a4d;
  --accent: #C8A96A;
  --accent-light: #d4bc8a;
  --accent-dark: #b8964f;
  --background: #F5F7FA;
  --background-alt: #EDF0F5;
  --text: #1A1A1A;
  --text-light: #555;
  --text-muted: #888;
  --white: #FFFFFF;
  --border: #E2E6EC;
  --shadow-sm: 0 2px 8px rgba(30, 42, 56, 0.06);
  --shadow-md: 0 8px 24px rgba(30, 42, 56, 0.08);
  --shadow-lg: 0 16px 48px rgba(30, 42, 56, 0.10);
  --shadow-accent: 0 8px 24px rgba(200, 169, 106, 0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s ease;
  --max-width: 1200px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background-color: var(--background);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.15rem; }

p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.text-accent {
  color: var(--accent);
}

.text-center {
  text-align: center;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-alt {
  background-color: var(--white);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-header .section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
  background-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(200, 169, 106, 0.35);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-white {
  background-color: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.88rem;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: all var(--transition);
  background: transparent;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 20px rgba(30, 42, 56, 0.06);
  height: 70px;
}

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

.logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  transition: color var(--transition);
  letter-spacing: -0.5px;
}

.logo span {
  color: var(--accent);
}

.header.scrolled .logo {
  color: var(--primary);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-links a:hover {
  color: var(--accent);
}

.nav-links a:hover::after {
  width: 100%;
}

.header.scrolled .nav-links a {
  color: var(--text-light);
}

.header.scrolled .nav-links a:hover {
  color: var(--accent);
}

.nav-cta {
  display: none;
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

.header.scrolled .hamburger span {
  background-color: var(--primary);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: var(--primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  transition: right var(--transition);
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu a {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  color: var(--white);
  transition: color var(--transition-fast);
  opacity: 0;
  transform: translateX(40px);
}

.mobile-menu.active a {
  opacity: 1;
  transform: translateX(0);
}

.mobile-menu a:hover {
  color: var(--accent);
}

/* Stagger animation for mobile menu items */
.mobile-menu a:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu a:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu a:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu a:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu a:nth-child(5) { transition-delay: 0.3s; }
.mobile-menu a:nth-child(6) { transition-delay: 0.35s; }
.mobile-menu a:nth-child(7) { transition-delay: 0.4s; }

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

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(30, 42, 56, 0.92) 0%,
    rgba(30, 42, 56, 0.7) 50%,
    rgba(30, 42, 56, 0.85) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 120px 0 80px;
}

.hero-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease 0.3s forwards;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 24px;
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  line-height: 1.15;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.8s ease 0.5s forwards;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 520px;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.8s ease 0.7s forwards;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.8s ease 0.9s forwards;
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Decorative accent line */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, transparent 50%);
}

/* ============================================
   PROBLEMA SECTION
   ============================================ */
.problema-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.problema-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.problema-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--accent);
  transition: height var(--transition);
}

.problema-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.problema-card:hover::before {
  height: 100%;
}

.problema-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.5rem;
}

.problema-card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.problema-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ============================================
   MÉTODO SECTION
   ============================================ */
.metodo-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 80px;
}

.metodo-step:last-child {
  margin-bottom: 0;
}

.metodo-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.metodo-image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform var(--transition);
}

.metodo-step:hover .metodo-image img {
  transform: scale(1.03);
}

.metodo-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.metodo-text h3 {
  margin-bottom: 12px;
}

.metodo-text p {
  font-size: 0.95rem;
}

/* ============================================
   SOBRE VERÓNICA
   ============================================ */
.sobre-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

.sobre-image {
  position: relative;
}

.sobre-image img {
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
}

.sobre-image::after {
  content: '';
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 120px;
  height: 120px;
  border: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.sobre-text .section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.sobre-text h2 {
  margin-bottom: 20px;
}

.sobre-text p {
  margin-bottom: 16px;
  font-size: 0.98rem;
}

.sobre-credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.credential-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--background);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--primary);
  border: 1px solid var(--border);
}

.credential-tag svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

/* ============================================
   CURSOS
   ============================================ */
.cursos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.curso-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.curso-badge {
  display: inline-block;
  padding: 6px 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 50px;
  margin-bottom: 16px;
}

.curso-content {
  padding: 36px 32px;
}

.curso-content h3 {
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.curso-content p {
  font-size: 0.93rem;
  margin-bottom: 20px;
}

.curso-features {
  margin-bottom: 24px;
}

.curso-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
}

.curso-features li:last-child {
  border-bottom: none;
}

.curso-features li svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

.curso-footer {
  padding: 24px 32px;
  background: var(--background);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.curso-price {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.curso-price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
}

/* ============================================
   TESTIMONIOS
   ============================================ */
.testimonios-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonios-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonio-slide {
  min-width: 100%;
  padding: 0 20px;
}

.testimonio-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.testimonio-quote {
  font-family: 'Playfair Display', serif;
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 20px;
}

.testimonio-card blockquote {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.testimonio-author {
  font-weight: 600;
  color: var(--primary);
  font-size: 0.95rem;
}

.testimonio-role {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

.slider-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  color: var(--primary);
}

.slider-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--white);
}

.slider-dots {
  display: flex;
  gap: 8px;
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: all var(--transition);
  cursor: pointer;
}

.slider-dot.active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
}

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

.contacto-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.contacto-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contacto-icon svg {
  width: 20px;
  height: 20px;
  color: var(--white);
}

.contacto-item h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  margin-bottom: 4px;
}

.contacto-item p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  transition: all var(--transition-fast);
  color: var(--text);
  font-size: 0.95rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 169, 106, 0.15);
}

.form-group textarea {
  height: 140px;
  resize: vertical;
}

.mapa-container {
  margin-top: 48px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  height: 300px;
}

.mapa-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--primary);
  padding: 60px 0 24px;
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer h4 {
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  z-index: 900;
  transition: all var(--transition);
  animation: whatsappPulse 2s ease-in-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: var(--white);
}

@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 32px rgba(37, 211, 102, 0.6); }
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delays for grid children */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }

/* ============================================
   RESPONSIVE — TABLET (768px+)
   ============================================ */
@media (min-width: 768px) {
  .container {
    padding: 0 40px;
  }

  .problema-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .metodo-step {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }

  .metodo-step:nth-child(even) .metodo-image {
    order: 2;
  }

  .sobre-grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }

  .cursos-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contacto-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ============================================
   RESPONSIVE — DESKTOP (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }

  .nav-links {
    display: flex;
  }

  .nav-cta {
    display: inline-flex;
  }

  .cursos-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .section {
    padding: 120px 0;
  }
}

/* Mobile: hide nav-links, show hamburger */
@media (max-width: 1023px) {
  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .hero-content {
    padding: 140px 0 80px;
  }

  .hero h1 {
    font-size: clamp(2rem, 7vw, 2.8rem);
  }

  .sobre-image::after {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 64px 0;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
    justify-content: center;
  }

  .problema-card {
    padding: 32px 24px;
  }

  .testimonio-card {
    padding: 32px 24px;
  }

  .curso-content {
    padding: 28px 24px;
  }

  .curso-footer {
    padding: 20px 24px;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
  }

  .whatsapp-float svg {
    width: 26px;
    height: 26px;
  }
}