/* ============================================
   Dr. Roger Méndez Roca — Cirugía Bariátrica
   Styles
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-primary: #0D2B45;
  --color-secondary: #1E5A8A;
  --color-accent: #3FAE7A;
  --color-white: #FFFFFF;
  --color-bg-light: #F6F8FA;
  --color-text: #1F2937;
  --color-text-secondary: #6B7280;
  --color-cta: #43C27A;
  --color-cta-hover: #36A968;
  --color-border: #E5E7EB;
  --color-success: #10B981;
  --color-warning: #F59E0B;

  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-width: 1200px;
  --nav-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);

  --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;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

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

.section {
  padding: 100px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--color-cta);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(67, 194, 122, 0.35);
}

.btn-primary:hover {
  background: var(--color-cta-hover);
  box-shadow: 0 6px 20px rgba(67, 194, 122, 0.45);
  transform: translateY(-1px);
}

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

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

.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--color-white);
}

.btn-whatsapp:hover {
  background: #1DA851;
  transform: translateY(-1px);
}

/* --- Navbar --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
  background: transparent;
}

.nav.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  height: 40px;
  transition: color var(--transition);
}

.nav-logo img {
  height: 36px;
  width: auto;
  display: block;
  transition: opacity 0.3s ease;
}

.nav-logo .logo-light {
  display: none;
}

.nav.scrolled .nav-logo .logo-light {
  display: block;
}

.nav.scrolled .nav-logo .logo-dark {
  display: none;
}

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

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition);
  position: relative;
}

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

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

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

.nav-links .nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--color-cta);
  color: var(--color-white) !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  transition: all var(--transition);
}

.nav-links .nav-cta:hover {
  background: var(--color-cta-hover);
  transform: translateY(-1px);
}

.nav.scrolled .nav-links .nav-cta {
  color: var(--color-white) !important;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: all var(--transition);
  border-radius: 2px;
}

.nav.scrolled .mobile-toggle span {
  background: var(--color-primary);
}

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

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

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

.nav.scrolled .mobile-toggle.active span {
  background: var(--color-primary);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: linear-gradient(170deg, #082A47 0%, #0D3B66 40%, #0E4A7A 70%, #1E5F9E 100%);
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  width: 80%;
  height: 140%;
  background: radial-gradient(ellipse at center, rgba(30, 95, 158, 0.12), transparent 60%);
  pointer-events: none;
  transform: translateX(-50%);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 180px;
  background: linear-gradient(to top, #0D3B66 0%, transparent 100%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 40px;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(63, 174, 122, 0.15);
  border: 1px solid rgba(63, 174, 122, 0.3);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero h1 .highlight {
  color: var(--color-accent);
}

.hero p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.75);
  margin-bottom: 28px;
}

.hero-bullets {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-bullets li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.85);
}

.hero-bullets li svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-frame {
  position: relative;
  width: 400px;
  height: 500px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hero-image-frame .placeholder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 0.85rem;
  text-align: center;
  padding: 40px;
}

.hero-image-placeholder svg {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  opacity: 0.3;
}

/* Hero Badges (credenciales) */
.hero-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-badge-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.06);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
}

.hero-badge-item svg {
  width: 14px;
  height: 14px;
  color: var(--color-accent);
}

/* --- Hero Before/After Carousel --- */
.hero-carousel-frame {
  position: relative;
  overflow: hidden;
}

.hero-carousel {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.hero-cslide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

.hero-cslide.active {
  opacity: 1;
  pointer-events: auto;
  position: relative;
}

.hero-cslide-img {
  width: 100%;
  height: calc(100% - 36px);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255,255,255,0.04);
}

.hero-cslide-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-ba-patient {
  margin-top: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.hero-carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 3;
}

.hero-cdot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  transition: all 0.3s ease;
  cursor: default;
}

.hero-cdot.active {
  background: var(--color-accent);
  width: 18px;
  border-radius: 3px;
}

/* --- Sections common --- */
.section-header {
  margin-bottom: 56px;
}

/* --- Para quién --- */
.para-quien {
  background: var(--color-bg-light);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-white);
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.card p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.card-cta {
  margin-top: 40px;
  text-align: center;
}

/* --- Calculadora IMC --- */
.imc-calculator {
  background: var(--color-white);
}

.calculator-wrapper {
  max-width: 560px;
  margin: 0 auto;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--color-border);
}

.calc-row {
  margin-bottom: 20px;
}

.calc-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.calc-row input[type="range"] {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-border);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}

.calc-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(63, 174, 122, 0.3);
}

.calc-row input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: none;
}

.calc-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.calc-value-small {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.calc-result {
  text-align: center;
  padding: 24px;
  margin-top: 24px;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.calc-result .imc-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.calc-result .imc-category {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.calc-result .imc-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.imc-scale {
  display: flex;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  margin: 16px 0 8px;
}

.imc-scale span {
  flex: 1;
}

.imc-scale .underweight { background: #93C5FD; }
.imc-scale .normal { background: var(--color-accent); }
.imc-scale .overweight { background: #FCD34D; }
.imc-scale .obese-1 { background: #FB923C; }
.imc-scale .obese-2 { background: #F87171; }
.imc-scale .obese-3 { background: #DC2626; }

.imc-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--color-text-secondary);
}

/* --- Problema real --- */
.problema-real {
  background: var(--color-primary);
  color: var(--color-white);
}

.problema-real .section-title {
  color: var(--color-white);
}

.problema-real .section-subtitle {
  color: rgba(255,255,255,0.7);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.problem-card {
  padding: 32px 28px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition);
}

.problem-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
}

.problem-card .card-icon {
  background: rgba(63, 174, 122, 0.2);
  color: var(--color-accent);
}

.problem-card h3 {
  color: var(--color-white);
  margin-bottom: 10px;
}

.problem-card p {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Sobre el Dr. --- */
.doctor-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 60px;
  align-items: start;
}

.doctor-image-wrapper {
  position: relative;
}

.doctor-image-frame {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
}

.doctor-image-frame .placeholder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.doctor-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  text-align: center;
  padding: 40px;
}

.doctor-image-placeholder svg {
  width: 60px;
  height: 60px;
  opacity: 0.2;
  margin-bottom: 12px;
}

.doctor-crest {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.doctor-name {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.doctor-specialty {
  font-size: 1rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 20px;
}

.doctor-description {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.doctor-credentials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.credential-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* --- Técnicas (Carrusel) --- */
.tecnicas {
  background: var(--color-bg-light);
}

.carousel-container {
  position: relative;
  overflow: hidden;
}

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

.carousel-slide {
  min-width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 0 4px;
}

.carousel-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.carousel-content .tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(63, 174, 122, 0.1);
  color: var(--color-accent);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.carousel-content .description {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.carousel-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.carousel-detail-item {
  padding: 12px 16px;
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
}

.carousel-detail-item .label {
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 2px;
}

.carousel-detail-item .value {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-primary);
}

.carousel-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.carousel-visual-inner {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  padding: 32px;
}

.carousel-visual-inner svg {
  width: 100%;
  height: 100%;
  max-width: 240px;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 36px;
}

.carousel-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-text);
}

.carousel-arrow:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

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

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

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

/* --- Beneficios --- */
.beneficios {
  background: var(--color-white);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.benefit-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.benefit-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
}

.benefit-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  background: rgba(63, 174, 122, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.benefit-text h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.benefit-text p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --- Proceso --- */
.proceso {
  background: var(--color-bg-light);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 28px;
  width: 2px;
  height: 100%;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 72px;
  padding-bottom: 48px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-accent);
  z-index: 2;
}

.timeline-item.active .timeline-number {
  background: var(--color-accent);
  color: var(--color-white);
}

.timeline-content {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  border: 1px solid var(--color-border);
}

.timeline-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Casos de éxito --- */
.casos {
  background: var(--color-white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.testimonial-stars {
  color: #F59E0B;
  font-size: 0.9rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  overflow: hidden;
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-info .name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-info .result {
  font-size: 0.82rem;
  color: var(--color-accent);
  font-weight: 500;
}

.testimonial-beforeafter {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.testimonial-beforeafter > div {
  flex: 1;
  aspect-ratio: 3/4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  text-align: center;
}

/* --- YouTube Testimonials --- */
.yt-testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  max-width: 860px;
  margin: 0 auto;
}

.yt-testimonial-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.yt-video-wrapper {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  box-shadow: var(--shadow-md);
}

.yt-video-wrapper:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.yt-video-wrapper iframe {
  width: 100%;
  height: 100%;
  display: block;
}

.yt-testimonial-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
}

/* --- Valoración Médica --- */
.valoracion {
  background: var(--color-primary);
  color: var(--color-white);
}

.valoracion .section-title {
  color: var(--color-white);
}

.valoracion .section-subtitle {
  color: rgba(255,255,255,0.7);
}

.valoracion-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.valoracion-info h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
}

.valoracion-info .includes-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.valoracion-info ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.valoracion-info ul li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.8);
}

.valoracion-info ul li svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.valoracion-price-box {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
}

.valoracion-price-box .price-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}

.valoracion-price-box .price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}

.valoracion-price-box .price-note {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 24px;
}

.modality-options {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}

.modality-tag {
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
}

.valoracion-cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.valoracion-cta .btn {
  width: 100%;
  max-width: 320px;
}

/* --- FAQ --- */
.faq-section {
  background: var(--color-bg-light);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--color-secondary);
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--color-text-secondary);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}

.faq-answer p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- CTA Final --- */
.cta-final {
  position: relative;
  background: linear-gradient(145deg, var(--color-primary) 0%, #0A1F33 50%, #061524 100%);
  text-align: center;
  overflow: hidden;
}

.cta-final::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(63, 174, 122, 0.06), transparent 70%);
  pointer-events: none;
}

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

.cta-final .section-title {
  color: var(--color-white);
}

.cta-final .section-subtitle {
  color: rgba(255,255,255,0.7);
  margin: 0 auto 36px;
}

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

.cta-final .btn-ghost {
  margin-top: 12px;
  display: inline-block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}

.cta-final .btn-ghost:hover {
  color: rgba(255,255,255,0.8);
}

/* --- Footer --- */
.footer {
  background: #061524;
  padding: 48px 0;
  color: rgba(255,255,255,0.5);
  font-size: 0.82rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand h4 {
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin-bottom: 8px;
}

.footer-brand p {
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h5 {
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  padding: 4px 0;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* --- WhatsApp FAB --- */
.whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition);
}

.whatsapp-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

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

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

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

/* --- Responsive --- */

/* Tablet */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-bullets {
    align-items: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-badges-row {
    justify-content: center;
  }

  .hero-image-wrapper {
    display: none;
  }

  .doctor-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .doctor-image-wrapper {
    max-width: 320px;
    margin: 0 auto;
  }

  .carousel-slide {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .carousel-visual {
    order: -1;
  }

  .carousel-visual-inner {
    max-width: 260px;
    aspect-ratio: 1;
  }

  .valoracion-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

/* Mobile */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    padding: 100px 32px 40px;
    gap: 20px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 40px rgba(0,0,0,0.1);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    color: var(--color-text-secondary) !important;
    font-size: 1rem;
  }

  .nav-links .nav-cta {
    margin-top: 12px;
  }

  .mobile-toggle {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-badges-row {
    gap: 8px;
  }

  .hero-badge-item {
    font-size: 0.72rem;
    padding: 5px 10px;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.5rem;
  }

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

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

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

  .yt-testimonials-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .yt-video-wrapper {
    max-width: 220px;
    margin: 0 auto;
  }

  .doctor-credentials {
    grid-template-columns: 1fr;
  }

  .calculator-wrapper {
    padding: 24px;
  }

  .timeline-item {
    padding-left: 60px;
  }

  .timeline-number {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .timeline::before {
    left: 22px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .whatsapp-fab {
    width: 48px;
    height: 48px;
    bottom: 16px;
    right: 16px;
  }

  .whatsapp-fab svg {
    width: 22px;
    height: 22px;
  }

  .diff-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
}

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

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
  }

  .modality-options {
    flex-direction: column;
    align-items: center;
  }

  .valoracion-price-box .price {
    font-size: 2rem;
  }

  .carousel-detail-item {
    padding: 10px 12px;
  }

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

/* --- Mobile overlay --- */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.mobile-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* --- Badge Featured (NUESTRA TÉCNICA INSIGNIA) --- */
.badge-featured {
  display: inline-block;
  padding: 5px 14px;
  background: linear-gradient(135deg, var(--color-accent), #2D9A68);
  color: var(--color-white);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  box-shadow: 0 2px 10px rgba(63, 174, 122, 0.3);
}

/* --- Badge Premium (SOLUCIÓN METABÓLICA AVANZADA) --- */
.badge-premium {
  display: inline-block;
  padding: 5px 14px;
  background: linear-gradient(135deg, var(--color-secondary), #2A5F8A);
  color: var(--color-white);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  box-shadow: 0 2px 10px rgba(30, 90, 138, 0.3);
}

/* ============================================
   RESULTADOS REALES — Premium Before/After Carousel
   ============================================ */
.resultados {
  background: var(--color-bg-light);
  overflow: hidden;
}

.results-carousel-wrapper {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 48px;
  position: relative;
}

.results-track-container {
  flex: 1;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.results-track {
  display: flex;
  gap: 24px;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.results-card {
  flex: 0 0 calc(50% - 12px);
  max-width: calc(50% - 12px);
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.4s ease, transform 0.4s ease;
}

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

.results-img-full {
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--color-bg-light);
}

.results-img-full img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.results-card:hover .results-img-full img {
  transform: scale(1.06);
}

.results-patient-label {
  padding: 12px 16px;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  text-align: center;
  border-top: 1px solid var(--color-border);
  font-weight: 500;
}

.results-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

.results-arrow:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.results-arrow:active {
  transform: scale(0.93);
}

/* --- Results Dots --- */
.results-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}

.results-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: all 0.4s ease;
  padding: 0;
}

.results-dot.active {
  width: 28px;
  border-radius: 4px;
  background: var(--color-accent);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .results-card {
    flex: 0 0 calc(100% - 48px);
    max-width: calc(100% - 48px);
  }

  .results-carousel-wrapper {
    gap: 8px;
  }

  .results-arrow {
    width: 36px;
    height: 36px;
  }

  .results-arrow svg {
    width: 18px;
    height: 18px;
  }

  .results-patient-label {
    font-size: 0.72rem;
    padding: 10px 12px;
  }

  .results-dots {
    margin-top: 20px;
  }
}

@media (max-width: 480px) {
  .results-card {
    flex: 0 0 calc(100% - 32px);
    max-width: calc(100% - 32px);
  }

  .results-arrow {
    width: 32px;
    height: 32px;
  }
}

/* --- Featured Slide (Manga WII) --- */
.slide-featured {
  position: relative;
}

.slide-featured .carousel-content {
  position: relative;
}

.slide-featured .carousel-visual-inner {
  border-color: var(--color-accent);
  border-width: 2px;
  box-shadow: 0 0 0 1px rgba(63, 174, 122, 0.1), 0 8px 30px rgba(63, 174, 122, 0.1);
}

/* --- Premium Slide (SADI WII) --- */
.slide-premium .carousel-visual-inner {
  border-color: var(--color-secondary);
  border-width: 2px;
  box-shadow: 0 0 0 1px rgba(30, 90, 138, 0.08), 0 8px 30px rgba(30, 90, 138, 0.08);
}

/* --- Featured Bullets (listas con check) --- */
.featured-bullets {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.featured-bullets li {
  position: relative;
  padding-left: 22px;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.featured-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.featured-bullets li::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 10px;
  width: 6px;
  height: 3px;
  border-left: 1.5px solid white;
  border-bottom: 1.5px solid white;
  transform: rotate(-45deg);
}

/* --- Diferenciación Dr. Roger --- */
.diferenciacion {
  background: var(--color-white);
  padding: 80px 0;
}

.diferenciacion .section-header {
  margin-bottom: 40px;
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.diff-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.diff-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.diff-icon {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 50%;
  background: rgba(63, 174, 122, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.diff-icon svg {
  width: 16px;
  height: 16px;
}

/* --- Utility --- */
.hidden { display: none; }