/* ==========================================================================
   ISA VERDÚ NUTRICIÓN — Hoja de estilos principal
   ========================================================================== */

:root {
  --color-primary: #4592bc;
  --color-primary-dark: #35708f;
  --color-primary-light: #eaf4fb;
  --color-teal: #8ebf4a;
  --color-text: #16232f;
  --color-muted: #5b6b7a;
  --color-white: #ffffff;
  --color-border: #e3ecf2;
  --color-star: #f5a623;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 10px rgba(20, 50, 80, 0.06);
  --shadow-md: 0 10px 30px rgba(20, 50, 80, 0.10);

  --container-w: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  line-height: 1.6;
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }

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

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

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

.section {
  padding: 88px 0;
}

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

.eyebrow {
  display: inline-block;
  color: var(--color-teal);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.section-title {
  text-align: center;
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  position: relative;
  padding-bottom: 14px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: var(--color-primary);
}

.section-subtitle {
  text-align: center;
  color: var(--color-muted);
  max-width: 520px;
  margin: 0 auto 48px;
}

/* Buttons -------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 14px 26px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-teal);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-whatsapp {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.92rem;
  padding: 11px 20px;
}

.btn-whatsapp:hover {
  background: var(--color-primary-dark);
}

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

/* Header ----------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

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

.brand-mark {
  width: 44px;
  height: 44px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.brand-sub {
  font-size: 0.68rem;
  color: var(--color-muted);
  letter-spacing: 0.14em;
  font-weight: 600;
}

.main-nav {
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-weight: 500;
  color: var(--color-text);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Hero --------------------------------------------------------------------*/

.hero {
  padding: 64px 0 40px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.2rem, 4vw, 3.1rem);
  margin-bottom: 20px;
}

.hero-title .accent { color: var(--color-primary); }

.hero-lead {
  color: var(--color-muted);
  font-size: 1.05rem;
  max-width: 480px;
}

.hero-checklist {
  list-style: none;
  padding: 0;
  margin: 26px 0 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
}

.hero-checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 0.95rem;
}

.check-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

.hero-cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.hero-social-proof {
  display: flex;
  align-items: center;
  gap: 14px;
}

.avatar-stack {
  display: flex;
}

.avatar-stack .avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--color-white);
  margin-left: -12px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.8rem;
}

.avatar-stack .avatar:first-child { margin-left: 0; }

.stars { color: var(--color-star); letter-spacing: 2px; font-size: 0.95rem; }

.proof-text { font-size: 0.85rem; color: var(--color-muted); }
.proof-text strong { color: var(--color-text); }

.hero-visual {
  position: relative;
}

.hero-photo-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-md);
}

.hero-photo-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(160deg, #dcebf4, #c3dded);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-dark);
  text-align: center;
  gap: 10px;
  padding: 20px;
}

.hero-photo-placeholder small {
  color: var(--color-muted);
  font-size: 0.78rem;
  max-width: 220px;
}

.hero-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Sobre mí ---------------------------------------------------------------*/

.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: center;
}

.about-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-md);
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.about-text h2 { text-align: left; }
.about-text h2::after { left: 0; transform: none; }

.about-credentials {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 22px 0 8px;
}

.about-credentials span {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.82rem;
  padding: 7px 14px;
  border-radius: 999px;
}

@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; }
}

.credential-card {
  position: absolute;
  right: -24px;
  bottom: -28px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 22px 26px;
  width: 250px;
  text-align: center;
}

.credential-badge {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
}

.credential-card h4 {
  font-size: 1rem;
  margin-bottom: 2px;
}

.credential-role {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.credential-meta {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin: 0;
}

.credential-divider {
  width: 40px;
  height: 3px;
  background: var(--color-teal);
  margin: 12px auto 0;
  border-radius: 3px;
}

/* Services grid ------------------------------------------------------------*/

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 34px 26px;
  text-align: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

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

.service-icon {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}

.service-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* Results carousel ---------------------------------------------------------*/

.results-header { margin-bottom: 44px; }

.carousel {
  position: relative;
}

.carousel-track-wrap {
  overflow: hidden;
}

.carousel-track {
  display: flex;
  gap: 22px;
  transition: transform 0.4s ease;
}

.result-card {
  flex: 0 0 calc(25% - 16.5px);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--color-white);
  position: relative;
}

.result-photos {
  display: flex;
  aspect-ratio: 3 / 4;
}

.result-photo {
  flex: 1;
  background: linear-gradient(160deg, #dbe9f2, #c7dde9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 0.7rem;
  text-align: center;
  padding: 8px;
  border-right: 2px solid var(--color-white);
}

.result-photo:last-child { border-right: none; }

.result-badge {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 6px 16px;
  border-radius: 999px;
}

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
}

.carousel-nav:hover { background: var(--color-primary); color: var(--color-white); }

.carousel-prev { left: -20px; }
.carousel-next { right: -20px; }

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

/* Process ------------------------------------------------------------------*/

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
}

.process-step {
  text-align: center;
  padding: 0 16px;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.process-step h3 { font-size: 1rem; margin-bottom: 8px; }
.process-step p { color: var(--color-muted); font-size: 0.88rem; margin: 0; }

.process-connector {
  position: absolute;
  top: 16px;
  left: 12.5%;
  right: 12.5%;
  height: 0;
  border-top: 2px dashed var(--color-border);
  z-index: 0;
}

/* Contact / CTA split -------------------------------------------------------*/

.contact-section { padding: 0 0 100px; }

.contact-panel {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.contact-side {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 48px 40px;
}

.contact-side-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.contact-side h2 {
  color: var(--color-white);
  font-size: 1.6rem;
}

.contact-side p {
  color: rgba(255,255,255,0.85);
}

.contact-benefits {
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
}

.contact-benefits li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-weight: 500;
  font-size: 0.95rem;
}

.contact-benefits .check-dot {
  background: rgba(255,255,255,0.18);
  color: var(--color-white);
}

.contact-form-wrap {
  background: var(--color-white);
  padding: 48px 44px;
}

.contact-form-wrap h2 { font-size: 1.5rem; }
.contact-form-wrap > p { color: var(--color-muted); margin-bottom: 28px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(28, 95, 138, 0.12);
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin: 20px 0 24px;
}

.form-consent input { margin-top: 3px; }

.form-consent a { color: var(--color-primary); font-weight: 600; }

.form-footer-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.form-status {
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}

.form-status.show { display: block; }
.form-status.ok { color: var(--color-teal); }
.form-status.error { color: #c0392b; }

/* Footer ---------------------------------------------------------------- */

.site-footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 30px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .brand-mark { width: 34px; height: 34px; }
.footer-brand .brand-name { font-size: 0.9rem; }
.footer-brand .brand-sub { font-size: 0.6rem; }

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--color-muted);
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Floating WhatsApp button ------------------------------------------------*/

.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 60;
  transition: transform 0.15s ease;
}

.whatsapp-float:hover { transform: scale(1.08); }

/* Blog --------------------------------------------------------------------*/

.page-hero {
  background: var(--color-primary-light);
  padding: 64px 0 56px;
  text-align: center;
}

.page-hero h1 { font-size: clamp(2rem, 3.4vw, 2.6rem); }
.page-hero p { color: var(--color-muted); max-width: 560px; margin: 0 auto; }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.post-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  display: flex;
  flex-direction: column;
}

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

.post-card-image {
  aspect-ratio: 16 / 10;
  background: linear-gradient(160deg, #dbe9f2, #c7dde9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 0.75rem;
  text-align: center;
  padding: 12px;
}

.post-card-body { padding: 22px 22px 26px; flex: 1; display: flex; flex-direction: column; }

.post-tag {
  color: var(--color-teal);
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.post-card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.post-card p { color: var(--color-muted); font-size: 0.9rem; margin-bottom: 16px; flex: 1; }

.post-card-meta {
  font-size: 0.78rem;
  color: var(--color-muted);
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}

.post-read-more {
  font-weight: 600;
  color: var(--color-primary);
}

/* Single blog post ---------------------------------------------------------*/

.post-article {
  max-width: 740px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.post-article .post-tag { text-align: center; }
.post-article h1 { text-align: center; font-size: clamp(1.8rem, 3vw, 2.4rem); }

.post-meta-bar {
  display: flex;
  justify-content: center;
  gap: 18px;
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-bottom: 36px;
}

.post-cover {
  aspect-ratio: 16 / 8;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, #dbe9f2, #c7dde9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  margin-bottom: 40px;
  font-size: 0.85rem;
}

.post-content h2 { font-size: 1.4rem; margin-top: 1.6em; }
.post-content h3 { font-size: 1.15rem; margin-top: 1.4em; }
.post-content p { color: var(--color-text); }
.post-content ul { color: var(--color-text); padding-left: 22px; }
.post-content li { margin-bottom: 8px; }

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 30px;
}

.post-cta {
  margin-top: 48px;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
}

.post-cta h3 { margin-bottom: 12px; }

/* Utility -------------------------------------------------------------- */

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

/* Responsive -------------------------------------------------------------- */

@media (max-width: 960px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .process-connector { display: none; }
  .result-card { flex: 0 0 calc(50% - 11px); }
  .contact-panel { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .credential-card { position: static; width: 100%; margin-top: 18px; }
  .hero-checklist { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .contact-side, .contact-form-wrap { padding: 34px 24px; }
  .form-row { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .result-card { flex: 0 0 100%; }
  .section { padding: 64px 0; }
}

/* Mobile nav open state */
.site-header.nav-open .main-nav {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-white);
  flex-direction: column;
  padding: 20px 24px;
  gap: 16px;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}