/* =====================================================
   LOTUS ESTUDI — main.css
   Variables globales, reset, tipografía, utilidades
   ===================================================== */

/* --- Variables corporativas --- */
:root {
  --lotus-green:       #3a8559;
  --lotus-green-dark:  #2c6644;
  --lotus-green-soft:  #eaf3ee;
  --lotus-dark:        #1a1a1a;
  --lotus-text:        #2b2b2b;
  --lotus-muted:       #6b6b6b;
  --lotus-bg:          #ffffff;
  --lotus-bg-alt:      #f7f7f5;
  --lotus-border:      #e5e5e0;
  --radius:            14px;
  --radius-lg:         20px;
  --shadow:            0 10px 30px rgba(26,26,26,.08);
  --shadow-md:         0 4px 16px rgba(26,26,26,.12);
  --transition:        .25s ease;
  --font-main:         'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-main);
  color: var(--lotus-text);
  background: var(--lotus-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
p { margin: 0 0 16px; }
h1, h2, h3, h4, h5, h6 { margin: 0; }

/* --- Contenedor --- */
.lotus-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Eyebrow (etiqueta superior) --- */
.lotus-eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 12px;
  font-weight: 600;
  color: var(--lotus-green-dark);
  background: #fff;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--lotus-border);
  margin-bottom: 22px;
}
.eyebrow-light {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
}

/* --- Botones --- */
.lotus-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  font-family: var(--font-main);
  line-height: 1;
}
.lotus-btn-primary {
  background: var(--lotus-green-dark);
  color: #fff;
}
.lotus-btn-primary:hover {
  background: var(--lotus-dark);
  transform: translateY(-2px);
}
.lotus-btn-ghost {
  background: transparent;
  color: var(--lotus-dark);
  border: 1px solid var(--lotus-dark);
}
.lotus-btn-ghost:hover {
  background: var(--lotus-dark);
  color: #fff;
}
.lotus-btn-white {
  background: #fff;
  color: var(--lotus-green-dark);
}
.lotus-btn-white:hover {
  background: var(--lotus-green-soft);
  transform: translateY(-2px);
}
.lotus-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
  transform: none !important;
}

/* --- CTA row --- */
.lotus-cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Secciones --- */
section.lotus-section { padding: 90px 0; }
section.lotus-section.alt { background: var(--lotus-bg-alt); }

.lotus-section-eyebrow {
  text-transform: uppercase;
  letter-spacing: .2em;
  font-size: 12px;
  font-weight: 700;
  color: var(--lotus-green-dark);
  margin: 0 0 16px;
  text-align: center;
}
.lotus-section-title {
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.15;
  font-weight: 700;
  color: var(--lotus-dark);
  margin: 0 auto 24px;
  text-align: center;
  letter-spacing: -.4px;
  max-width: 900px;
}
.lotus-section-lead {
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
  color: var(--lotus-muted);
  font-size: 17px;
}

/* --- Bloques alternados imagen+texto --- */
.lotus-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-top: 60px;
}
.lotus-split.reverse .text { order: 2; }
.lotus-split.reverse .visual { order: 1; }
.lotus-split h3 {
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.2;
  color: var(--lotus-dark);
  margin: 0 0 18px;
  font-weight: 700;
  letter-spacing: -.3px;
}
.lotus-split p {
  color: var(--lotus-muted);
  font-size: 16px;
  margin: 0 0 14px;
}
.lotus-split .visual {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--lotus-green-soft), #fff);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lotus-split .visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Cards de servicios --- */
.lotus-services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.lotus-service-card {
  background: #fff;
  border: 1px solid var(--lotus-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}
.lotus-service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--lotus-green);
}
.lotus-service-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--lotus-green-soft);
  color: var(--lotus-green-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 20px;
}
.lotus-service-card h4 {
  font-size: 19px;
  font-weight: 700;
  color: var(--lotus-dark);
  margin: 0 0 10px;
}
.lotus-service-card p {
  margin: 0;
  color: var(--lotus-muted);
  font-size: 15px;
}

/* --- Testimonios --- */
.lotus-testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.lotus-testimonial {
  background: #fff;
  border: 1px solid var(--lotus-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}
.lotus-testimonial:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.lotus-testimonial .thumb {
  aspect-ratio: 16/9;
  background: #1a1a1a center/cover no-repeat;
  position: relative;
}
.lotus-testimonial .thumb::after {
  content: '▶';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 32px;
  background: rgba(0,0,0,.25);
  transition: background var(--transition);
}
.lotus-testimonial:hover .thumb::after {
  background: rgba(44,102,68,.55);
}
.lotus-testimonial .body { padding: 22px 24px; }
.lotus-testimonial .body p {
  margin: 0 0 14px;
  color: var(--lotus-text);
  font-size: 15px;
  font-style: italic;
}
.lotus-testimonial .body strong {
  display: block;
  color: var(--lotus-dark);
  font-size: 14px;
}
.lotus-testimonial .body span {
  color: var(--lotus-muted);
  font-size: 13px;
}

/* --- CTA final --- */
.lotus-cta-final {
  background: linear-gradient(135deg, var(--lotus-green-dark) 0%, var(--lotus-dark) 100%);
  color: #fff;
  padding: 90px 0;
  text-align: center;
}
.lotus-cta-final h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  margin: 0 0 18px;
  font-weight: 700;
  letter-spacing: -.3px;
}
.lotus-cta-final p {
  color: rgba(255,255,255,.85);
  max-width: 640px;
  margin: 0 auto 32px;
  font-size: 17px;
}

/* --- Logos clientes --- */
.lotus-logos {
  background: var(--lotus-bg);
  padding: 50px 0;
  border-bottom: 1px solid var(--lotus-border);
}
.lotus-logos-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 32px;
  align-items: center;
}
.lotus-logos-grid img {
  width: auto;
  margin: 0 auto;
  filter: grayscale(100%) brightness(2);
  opacity: .9;
  transition: all .3s;
}
.lotus-logos-grid img:hover {
  filter: grayscale(0) brightness(1);
  opacity: 1;
}

/* --- FAQ accordion --- */
.lotus-faq { display: grid; gap: 14px; margin-top: 24px; }
.lotus-faq details {
  background: #fff;
  border: 1px solid var(--lotus-border);
  border-radius: 12px;
  padding: 18px 22px;
  transition: box-shadow var(--transition);
}
.lotus-faq details[open] { box-shadow: var(--shadow-md); }
.lotus-faq summary {
  font-weight: 600;
  cursor: pointer;
  color: var(--lotus-dark);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.lotus-faq summary::-webkit-details-marker { display: none; }
.lotus-faq summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 300;
  color: var(--lotus-green-dark);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.lotus-faq details[open] summary::after { transform: rotate(45deg); }
.lotus-faq details p {
  margin: 12px 0 0;
  color: var(--lotus-muted);
}

/* --- Listas con bullet verde --- */
.lotus-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}
.lotus-list li {
  padding-left: 30px;
  position: relative;
  font-size: 16px;
  color: #333;
}
.lotus-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--lotus-green-dark);
  box-shadow: 0 0 0 4px var(--lotus-green-soft);
}

/* --- Formularios --- */
.lotus-field { margin-bottom: 18px; }
.lotus-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--lotus-dark);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.lotus-field input,
.lotus-field textarea,
.lotus-field select {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--lotus-border);
  border-radius: 10px;
  font-size: 15px;
  font-family: var(--font-main);
  background: #fafaf7;
  transition: border-color .2s, background .2s;
  color: var(--lotus-text);
}
.lotus-field textarea { resize: vertical; min-height: 120px; }
.lotus-field input:focus,
.lotus-field textarea:focus,
.lotus-field select:focus {
  outline: none;
  border-color: var(--lotus-green-dark);
  background: #fff;
  box-shadow: 0 0 0 3px var(--lotus-green-soft);
}
.lotus-field input.error,
.lotus-field textarea.error { border-color: #c0392b; background: #fdecea; }
.lotus-error-msg {
  color: #c0392b;
  font-size: 13px;
  margin-top: 6px;
  display: none;
}
.lotus-error-msg.show { display: block; }

.lotus-consent {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 8px 0 22px;
  font-size: 13px;
  color: var(--lotus-muted);
  line-height: 1.5;
}
.lotus-consent input { margin-top: 3px; accent-color: var(--lotus-green-dark); }
.lotus-consent a { color: var(--lotus-green-dark); text-decoration: underline; }

.lotus-feedback {
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 14px;
  display: none;
}
.lotus-feedback.success {
  display: block;
  background: #e8f6ee;
  color: #1e6b3a;
  border: 1px solid #b9e2c7;
}
.lotus-feedback.error {
  display: block;
  background: #fdecea;
  color: #a93226;
  border: 1px solid #f3b9b1;
}

/* Honeypot anti-spam */
.lotus-hp { display: none !important; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .lotus-split { grid-template-columns: 1fr; gap: 36px; }
  .lotus-split.reverse .text { order: 1; }
  .lotus-split.reverse .visual { order: 2; }
  .lotus-services,
  .lotus-testimonials { grid-template-columns: 1fr; }
  .lotus-logos-grid { grid-template-columns: repeat(3,1fr); gap: 24px; }
  section.lotus-section { padding: 64px 0; }
}
@media (max-width: 600px) {
  .lotus-services { grid-template-columns: 1fr; }
  .lotus-cta-row { flex-direction: column; }
  .lotus-btn { width: 100%; text-align: center; }
}