/* =========================================================
   GINKGO OTEC SpA – Sistema de diseño
   Paleta inspirada en el logo: verde hoja, dorado, teal.
   ========================================================= */

:root {
  /* Colores marca */
  --green-900: #143324;
  --green-800: #1F5235;
  --green-700: #2F7A4D;
  --green-500: #4A9D6E;
  --green-100: #E7F1EA;

  --gold-700: #B8862F;
  --gold-500: #D4A24A;
  --gold-300: #F5D27A;
  --gold-50:  #FBF4E2;

  --teal-700: #1F6E6E;
  --teal-500: #2A8B8B;
  --teal-100: #DFEFEF;

  /* Neutros cálidos */
  --ink-900: #1B2421;
  --ink-700: #3B4742;
  --ink-500: #6B756F;
  --ink-300: #B8BFB9;
  --paper:    #FBF8F1;   /* fondo crema, similar al de la referencia */
  --paper-2:  #F4EFE3;
  --white:    #FFFFFF;

  /* Tipografías */
  --font-serif: "Cormorant Garamond", "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans:  "Inter", "Helvetica Neue", Arial, sans-serif;

  /* Layout */
  --container: 1180px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-soft: 0 6px 24px rgba(20, 51, 36, 0.08);
  --shadow-hover: 0 14px 36px rgba(20, 51, 36, 0.14);
  --transition: 0.25s ease;
}

/* ---------- Reset suave ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-900);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--green-800); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold-700); }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--green-900);
  line-height: 1.2;
  margin: 0 0 0.6em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.6rem); }
h4 { font-size: 1.15rem; }

p { margin: 0 0 1em; }
.lead { font-size: 1.18rem; color: var(--ink-700); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-700);
  margin-bottom: 1rem;
}

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

section { padding: 80px 0; }
section.tight { padding: 56px 0; }

.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 { margin-bottom: 12px; }
.section-title p  { color: var(--ink-700); max-width: 720px; margin: 0 auto; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--green-800);
  color: var(--white);
}
.btn-primary:hover { background: var(--green-900); color: var(--white); transform: translateY(-2px); }
.btn-gold {
  background: var(--gold-500);
  color: var(--green-900);
}
.btn-gold:hover { background: var(--gold-700); color: var(--white); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--green-800);
  border-color: var(--green-800);
}
.btn-ghost:hover { background: var(--green-800); color: var(--white); }

/* ---------- Header / Navbar ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 248, 241, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid rgba(20, 51, 36, 0.08);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 44px; height: 44px; }
.brand .name {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--green-900);
  letter-spacing: 0.01em;
}
.brand .name span { color: var(--teal-700); font-weight: 500; }

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  color: var(--ink-700);
  font-weight: 500;
  font-size: 0.98rem;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--green-800); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -8px;
  height: 2px;
  background: var(--gold-500);
}

.nav-cta { display: flex; gap: 12px; align-items: center; }
.nav-toggle {
  display: none;
  background: none; border: none;
  font-size: 1.6rem;
  color: var(--green-800);
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 88px;
  background:
    radial-gradient(ellipse at top right, rgba(212, 162, 74, 0.18), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(42, 139, 139, 0.15), transparent 55%),
    var(--paper);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero h1 { color: var(--green-900); }
.hero h1 em {
  font-style: italic;
  color: var(--gold-700);
  font-weight: 500;
}
.hero .lead { max-width: 540px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-art {
  position: relative;
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(245, 210, 122, 0.35), rgba(47, 122, 77, 0.12) 65%, transparent 100%);
  z-index: 0;
}
.hero-art img, .hero-art svg { width: 88%; height: auto; position: relative; z-index: 1; }
.hero-meta {
  margin-top: 28px;
  display: flex; gap: 24px; flex-wrap: wrap;
  font-size: 0.92rem; color: var(--ink-700);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-500); }

/* ---------- Cards (cursos) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.card {
  background: var(--white);
  border: 1px solid rgba(20, 51, 36, 0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card .tag {
  display: inline-block;
  background: var(--green-100);
  color: var(--green-800);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
  align-self: flex-start;
}
.card .tag.gold { background: var(--gold-50); color: var(--gold-700); }
.card .tag.teal { background: var(--teal-100); color: var(--teal-700); }
.card h3 { margin-bottom: 12px; }
.card p { color: var(--ink-700); margin-bottom: 18px; }
.card ul {
  list-style: none; padding: 0; margin: 0 0 24px;
  font-size: 0.95rem; color: var(--ink-700);
}
.card ul li {
  padding: 6px 0 6px 26px;
  position: relative;
  border-bottom: 1px dashed rgba(20, 51, 36, 0.08);
}
.card ul li::before {
  content: "";
  position: absolute; left: 0; top: 14px;
  width: 14px; height: 14px;
  background: var(--gold-300);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}
.card ul li:last-child { border-bottom: none; }
.card .card-foot {
  margin-top: auto;
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 18px;
  border-top: 1px solid rgba(20, 51, 36, 0.08);
}
.card .price {
  font-family: var(--font-serif);
  font-size: 1.4rem; color: var(--green-900); font-weight: 600;
}
.card .price small { font-size: 0.8rem; color: var(--ink-500); display: block; font-family: var(--font-sans); font-weight: 400; }

/* ---------- Sobre la OTEC / split sections ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.feature-list {
  list-style: none;
  padding: 0; margin: 24px 0 0;
}
.feature-list li {
  display: flex; gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(20, 51, 36, 0.08);
}
.feature-list .ico {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gold-50);
  color: var(--gold-700);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.feature-list strong { color: var(--green-900); display: block; margin-bottom: 2px; font-size: 1.02rem; }
.feature-list span { color: var(--ink-700); font-size: 0.95rem; }

/* ---------- Módulos del curso ---------- */
.modules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.module {
  position: relative;
  padding: 32px 24px 28px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border-top: 4px solid var(--gold-500);
  box-shadow: var(--shadow-soft);
}
.module:nth-child(1) { border-top-color: var(--green-700); }
.module:nth-child(2) { border-top-color: var(--gold-500); }
.module:nth-child(3) { border-top-color: var(--teal-500); }
.module:nth-child(4) { border-top-color: var(--green-900); }
.module .num {
  font-family: var(--font-serif);
  font-size: 2.4rem; font-weight: 600; color: var(--gold-500);
  line-height: 1; margin-bottom: 10px;
}
.module h4 { color: var(--green-900); margin-bottom: 10px; font-size: 1.15rem; }
.module .chinese {
  font-style: italic; color: var(--ink-500); font-size: 0.92rem; margin-bottom: 12px;
}
.module p { color: var(--ink-700); font-size: 0.96rem; margin: 0; }

/* ---------- Calendario ---------- */
.calendar-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.calendar-table th, .calendar-table td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid rgba(20, 51, 36, 0.08);
  font-size: 0.96rem;
}
.calendar-table th {
  background: var(--green-800);
  color: var(--white);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
.calendar-table tr:last-child td { border-bottom: none; }
.calendar-table td:first-child {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--green-900);
}

/* ---------- Instructor ---------- */
.instructor {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  align-items: center;
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.instructor .photo {
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, var(--gold-300), var(--green-700) 80%);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 600;
}
.instructor h3 { margin-bottom: 4px; }
.instructor .role { color: var(--gold-700); font-weight: 600; margin-bottom: 16px; font-size: 0.92rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- SENCE info ---------- */
.sence-banner {
  background: linear-gradient(135deg, var(--green-800) 0%, var(--teal-700) 100%);
  color: var(--white);
  padding: 56px 48px;
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: center;
}
.sence-banner h2 { color: var(--white); }
.sence-banner p { color: rgba(255, 255, 255, 0.86); }

/* ---------- Testimonios ---------- */
.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.testimonial {
  background: var(--white);
  padding: 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  position: relative;
}
.testimonial::before {
  content: "\201C";
  font-family: var(--font-serif);
  font-size: 5rem;
  color: var(--gold-300);
  line-height: 1;
  position: absolute;
  top: 8px; left: 18px;
}
.testimonial blockquote {
  margin: 0 0 20px;
  padding-top: 28px;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-style: italic;
  color: var(--ink-700);
}
.testimonial .who {
  display: flex; align-items: center; gap: 12px;
  border-top: 1px solid rgba(20, 51, 36, 0.08);
  padding-top: 16px;
}
.testimonial .avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--green-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--green-800);
  font-weight: 700;
}
.testimonial .who strong { display: block; color: var(--green-900); font-size: 0.96rem; }
.testimonial .who span { color: var(--ink-500); font-size: 0.85rem; }

/* ---------- FAQ (accordion) ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq details {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  margin-bottom: 14px;
  overflow: hidden;
  border: 1px solid rgba(20, 51, 36, 0.06);
}
.faq summary {
  padding: 20px 24px;
  font-weight: 600;
  color: var(--green-900);
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-serif);
  font-size: 1.1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  color: var(--gold-700);
  font-size: 1.6rem;
  font-weight: 400;
  transition: transform var(--transition);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > *:not(summary) {
  padding: 0 24px 22px;
  color: var(--ink-700);
}

/* ---------- Formulario ---------- */
.form-wrap {
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 18px; }
.form-field label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink-700);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(20, 51, 36, 0.18);
  background: var(--paper);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--green-700);
  box-shadow: 0 0 0 3px rgba(47, 122, 77, 0.15);
}
.form-field textarea { min-height: 120px; resize: vertical; }

/* ---------- CTA banner ---------- */
.cta {
  background:
    radial-gradient(ellipse at top, rgba(212, 162, 74, 0.18), transparent 55%),
    var(--green-900);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
}
.cta h2 { color: var(--white); margin-bottom: 14px; }
.cta p { color: rgba(255, 255, 255, 0.82); max-width: 600px; margin: 0 auto 28px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--green-900);
  color: rgba(255, 255, 255, 0.78);
  padding: 64px 0 24px;
  font-size: 0.94rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-grid h4 {
  color: var(--gold-300);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-family: var(--font-sans);
  margin-bottom: 14px;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid ul li { margin-bottom: 8px; }
.footer-grid a { color: rgba(255, 255, 255, 0.78); }
.footer-grid a:hover { color: var(--gold-300); }
.footer-grid .brand .name { color: var(--white); }
.footer-grid .brand .name span { color: var(--gold-300); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.86rem;
}

/* ---------- Page header (interna) ---------- */
.page-head {
  padding: 80px 0 56px;
  background:
    radial-gradient(ellipse at top right, rgba(212, 162, 74, 0.16), transparent 55%),
    var(--paper);
  text-align: center;
}
.page-head .breadcrumb {
  font-size: 0.86rem;
  color: var(--ink-500);
  margin-bottom: 10px;
}
.page-head .breadcrumb a { color: var(--ink-500); }
.page-head h1 { margin-bottom: 12px; }
.page-head p { max-width: 720px; margin: 0 auto; color: var(--ink-700); }

/* ---------- Mentoría destacada ---------- */
.mentor-card {
  background: linear-gradient(135deg, var(--gold-50), var(--paper-2));
  border: 1px solid rgba(184, 134, 47, 0.2);
  padding: 40px;
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
}
.mentor-card .icon-wrap {
  width: 84px; height: 84px;
  border-radius: 50%;
  background: var(--gold-500);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
  font-size: 2.2rem;
}
.mentor-card h3 { margin-bottom: 4px; }
.mentor-card p { margin: 0; color: var(--ink-700); }

/* ---------- Placeholder note ---------- */
.placeholder-note {
  display: inline-block;
  background: rgba(212, 162, 74, 0.18);
  color: var(--gold-700);
  padding: 2px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid, .split, .instructor, .sence-banner, .mentor-card {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .mentor-card { text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav-links {
    display: none;
    position: absolute;
    top: 78px; left: 0; right: 0;
    background: var(--paper);
    flex-direction: column;
    gap: 0;
    padding: 16px 24px;
    box-shadow: var(--shadow-soft);
    border-bottom: 1px solid rgba(20, 51, 36, 0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 10px 0; border-bottom: 1px solid rgba(20, 51, 36, 0.06); }
  .nav-toggle { display: block; }
  .nav-cta .btn { display: none; }
}
@media (max-width: 600px) {
  section { padding: 56px 0; }
  .hero { padding: 64px 0 56px; }
  .footer-grid { grid-template-columns: 1fr; }
  .card, .form-wrap, .instructor, .mentor-card { padding: 24px; }
  .sence-banner { padding: 32px; }
}

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }