/* ===== VALEA Inversiones — Estilos estáticos ===== */
:root {
  --azulOscuro: #1F4E79;
  --azulPrincipal: #2F6FB3;
  --azulMedio: #4FA3D1;
  --azulClaro: #8FD0E8;
  --naranjaAccento: #F07A2B;
  --naranjaOscuro: #D9681A;
  --grisClaro: #F2F2F2;
  --grisMedio: #6E6E6E;
  --blanco: #FFFFFF;
  --radius: 0.5rem;
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1), 0 10px 10px -5px rgba(0,0,0,.04);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  background: var(--azulOscuro);
  color: var(--blanco);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

::selection { background: var(--naranjaAccento); color: var(--blanco); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--azulOscuro); }
::-webkit-scrollbar-thumb { background: var(--azulPrincipal); border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: var(--azulMedio); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; }

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 768px) { .container { padding: 0 2rem; } }

.pt-20 { padding-top: 5rem; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 500;
  padding: .5rem 1rem;
  transition: background-color .2s, transform .15s, box-shadow .2s;
  color: var(--blanco);
}
.btn:active { transform: scale(.98); }
.btn-cta { background: var(--naranjaAccento); }
.btn-cta:hover { background: var(--naranjaOscuro); }
.btn-default { background: var(--azulPrincipal); }
.btn-default:hover { background: var(--azulOscuro); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: rgba(47,111,179,.2); }
.btn-lg { padding: .75rem 2rem; font-size: 1rem; height: 2.75rem; }
.btn-rounded-full { border-radius: 9999px; }
.btn-block { width: 100%; }
.btn-shadow { box-shadow: var(--shadow-lg); }

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: rgba(31,78,121,.95);
  backdrop-filter: blur(4px);
  border-bottom: 1px solid rgba(79,163,209,.3);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}
.nav-logo img {
  height: 3rem;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,.3));
  transition: transform .3s;
}
.nav-logo:hover img { transform: scale(1.05) rotate(2deg); }

.nav-desktop { display: none; align-items: center; gap: .25rem; }
.nav-link {
  position: relative;
  padding: .5rem 1rem;
  color: var(--blanco);
  font-size: .875rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: color .2s, background .2s;
}
.nav-link:hover { color: var(--azulPrincipal); background: rgba(31,78,121,.5); }
.nav-link.active { color: var(--azulPrincipal); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--naranjaAccento);
}
.nav-cta { margin-left: 1rem; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .5rem;
  background: transparent;
  color: var(--blanco);
}
.nav-toggle:hover { color: var(--azulPrincipal); }

.nav-mobile {
  display: none;
  background: var(--azulOscuro);
  border-top: 1px solid rgba(79,163,209,.3);
  overflow: hidden;
}
.nav-mobile.open { display: block; }
.nav-mobile-inner { padding: 1rem; display: flex; flex-direction: column; gap: .5rem; }
.nav-mobile-link {
  padding: .75rem 1rem;
  border-radius: .5rem;
  color: var(--blanco);
  transition: background .2s;
}
.nav-mobile-link:hover, .nav-mobile-link.active { background: rgba(47,111,179,.4); }
.nav-mobile-cta {
  margin-top: 1rem;
  padding: .75rem 1rem;
  border-radius: .5rem;
  background: var(--naranjaAccento);
  color: var(--blanco);
  text-align: center;
  font-weight: 500;
}

@media (min-width: 768px) {
  .nav-desktop { display: flex; }
  .nav-toggle { display: none; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(31,78,121,.9), rgba(31,78,121,.8), rgba(31,78,121,.9));
}
.hero-overlay-r {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(31,78,121,.8), transparent);
}
.hero-content { position: relative; z-index: 10; text-align: center; max-width: 56rem; margin: 0 auto; }
.hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--blanco);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}
.hero-sub {
  font-size: 1.25rem;
  color: var(--grisClaro);
  font-weight: 300;
  margin-bottom: 2rem;
}
.hero-sub strong { color: var(--azulClaro); font-weight: 600; }
@media (min-width: 768px) {
  .hero h1 { font-size: 3.75rem; }
  .hero-sub { font-size: 1.875rem; }
}
@media (min-width: 1024px) {
  .hero h1 { font-size: 4.5rem; }
  .hero-sub { font-size: 2.25rem; }
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}
.scroll-mouse {
  width: 1.5rem;
  height: 2.5rem;
  border: 2px solid var(--azulClaro);
  border-radius: 9999px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: .5rem;
}
.scroll-dot {
  width: .375rem; height: .375rem;
  background: var(--naranjaAccento);
  border-radius: 9999px;
  animation: scrollBounce 1.5s infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ===== Page hero (interior pages) ===== */
.page-hero {
  position: relative;
  padding: 5rem 0;
  overflow: hidden;
  background: var(--azulOscuro);
}
.page-hero-bg { position: absolute; inset: 0; }
.page-hero-bg img { width: 100%; height: 100%; object-fit: cover; mix-blend-mode: overlay; opacity: .3; }
.page-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(31,78,121,.95), rgba(31,78,121,.9), rgba(31,78,121,.95));
}
.page-hero-content { position: relative; text-align: center; max-width: 48rem; margin: 0 auto; }
.page-hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--blanco);
  margin-bottom: 1.5rem;
}
.page-hero h1 span { color: var(--naranjaAccento); }
.page-hero p { font-size: 1.25rem; color: var(--azulClaro); }
@media (min-width: 768px) { .page-hero h1 { font-size: 3.75rem; } }

/* ===== Sections ===== */
.section { padding: 4rem 0; }
.section-light { background: var(--grisClaro); }
.section-white { background: var(--blanco); }
.section-dark { background: var(--azulOscuro); }

.section-head { text-align: center; margin-bottom: 4rem; }
.section-head h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--azulOscuro);
  margin-bottom: 1.5rem;
}
.section-head h2 span { color: var(--azulPrincipal); }
.section-head h2.on-dark { color: var(--blanco); }
.section-head h2.on-dark span { color: var(--azulClaro); }
.section-head p { font-size: 1.125rem; color: var(--grisMedio); max-width: 42rem; margin: 0 auto; }
.section-head p.on-dark { color: var(--grisClaro); }
@media (min-width: 768px) { .section-head h2 { font-size: 3rem; } }

/* ===== About / values ===== */
.about-text { max-width: 48rem; margin: 0 auto; }
.about-text p { font-size: 1.125rem; color: var(--grisMedio); margin-bottom: 1.5rem; }

.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ===== Cards ===== */
.card {
  background: var(--blanco);
  border: 1px solid rgba(79,163,209,.3);
  border-radius: .75rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.card:hover { transform: translateY(-5px) scale(1.02); box-shadow: var(--shadow-xl); border-color: var(--azulPrincipal); }
.card-light {
  background: var(--grisClaro);
  border: 1px solid rgba(79,163,209,.2);
}
.card-light:hover { border-color: var(--naranjaAccento); }
.card-icon {
  width: 3rem; height: 3rem;
  background: rgba(143,208,232,.3);
  border-radius: .5rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}
.card-icon-lg { width: 4rem; height: 4rem; }
.card-icon.dark { background: var(--azulOscuro); }
.card-icon svg { width: 1.5rem; height: 1.5rem; color: var(--azulPrincipal); }
.card-icon.dark svg { color: var(--azulClaro); width: 2rem; height: 2rem; }
.card h3 { font-size: 1.25rem; font-weight: 600; color: var(--azulOscuro); margin-bottom: .5rem; }
.card .card-title-blue { color: var(--azulPrincipal); }
.card p { color: var(--grisMedio); font-size: .875rem; line-height: 1.6; }
.card-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--naranjaAccento);
  font-weight: 500;
  font-size: .875rem;
  transition: color .2s;
}
.card-link:hover { color: var(--azulPrincipal); }

/* ===== Service detail (services page) ===== */
.service-detail {
  background: var(--blanco);
  border-left: 4px solid var(--azulPrincipal);
  border-radius: 0 .75rem .75rem 0;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  margin-bottom: 4rem;
}
@media (min-width: 768px) { .service-detail { padding: 3rem; } }
.service-detail-grid { display: grid; gap: 2rem; }
@media (min-width: 768px) { .service-detail-grid { grid-template-columns: 1fr 1fr; align-items: start; } }
.service-detail h2 { font-size: 1.875rem; font-weight: 700; color: var(--azulOscuro); margin-bottom: 1rem; }
.service-detail .desc { color: var(--grisMedio); font-size: 1.125rem; margin-bottom: 1.5rem; }
.service-features {
  background: var(--grisClaro);
  padding: 1.5rem;
  border-radius: .5rem;
}
.service-features h3 { font-weight: 700; color: var(--azulOscuro); margin-bottom: 1rem; }
.feature-item { display: flex; align-items: flex-start; gap: .75rem; margin-bottom: .75rem; }
.feature-item svg { width: 1.25rem; height: 1.25rem; color: var(--naranjaAccento); flex-shrink: 0; margin-top: .25rem; }
.feature-item span { color: var(--azulOscuro); font-weight: 500; }

/* ===== Projects ===== */
.project-card {
  background: var(--blanco);
  border-radius: .5rem;
  padding: 1.5rem;
  border-bottom: 4px solid var(--naranjaAccento);
  box-shadow: var(--shadow-lg);
  transition: transform .3s;
}
.project-card:hover { transform: translateY(-5px) scale(1.02); }
.project-card-head { display: flex; align-items: flex-start; gap: .75rem; margin-bottom: 1rem; }
.project-card-icon {
  width: 2.5rem; height: 2.5rem;
  background: var(--azulClaro);
  border-radius: .5rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.project-card-icon svg { width: 1.25rem; height: 1.25rem; color: var(--azulOscuro); }
.project-card h3 { font-size: 1.125rem; font-weight: 700; color: var(--azulPrincipal); margin-bottom: .5rem; }
.project-card p { color: var(--grisMedio); font-size: .875rem; margin-bottom: 1rem; }
.project-client { display: flex; align-items: center; gap: .5rem; color: var(--azulMedio); }
.project-client svg { width: 1rem; height: 1rem; color: var(--naranjaAccento); }
.project-client span { font-size: .875rem; font-weight: 600; }

/* ===== Clients ===== */
.client-card {
  background: var(--blanco);
  border: 1px solid rgba(79,163,209,.2);
  border-radius: .5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  transition: transform .3s, box-shadow .3s;
}
.client-card:hover { transform: scale(1.05); box-shadow: var(--shadow-lg); }
.client-icon {
  width: 3rem; height: 3rem;
  background: rgba(143,208,232,.3);
  border-radius: 9999px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: .75rem;
}
.client-icon svg { width: 1.5rem; height: 1.5rem; color: var(--azulPrincipal); }
.client-card span { color: var(--azulOscuro); font-weight: 700; }

/* ===== Mission / Vision ===== */
.mv-card {
  background: rgba(255,255,255,.05);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(79,163,209,.3);
  border-radius: .75rem;
  padding: 2rem;
}
.mv-card h2 { font-size: 1.5rem; font-weight: 700; color: var(--naranjaAccento); margin-bottom: 1rem; }
.mv-card p { color: var(--grisClaro); line-height: 1.7; font-size: 1.125rem; }

/* ===== Contact ===== */
.contact-info-card {
  background: var(--blanco);
  border: 1px solid rgba(79,163,209,.2);
  border-radius: .75rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: box-shadow .3s, border-color .3s;
}
.contact-info-card:hover { box-shadow: var(--shadow-xl); border-color: var(--naranjaAccento); }
.contact-info-icon {
  width: 3rem; height: 3rem;
  background: var(--azulOscuro);
  border-radius: .5rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}
.contact-info-icon svg { width: 1.5rem; height: 1.5rem; color: var(--naranjaAccento); }
.contact-info-card h3 { font-size: 1.125rem; font-weight: 700; color: var(--azulPrincipal); margin-bottom: .75rem; }
.contact-info-card p { color: var(--grisMedio); font-size: .875rem; margin-bottom: .5rem; }

/* ===== Form ===== */
.form {
  background: var(--grisClaro);
  border: 1px solid rgba(79,163,209,.3);
  border-radius: .75rem;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  max-width: 48rem;
  margin: 0 auto;
}
.form-grid { display: grid; gap: 1.5rem; margin-bottom: 1.5rem; }
@media (min-width: 768px) { .form-grid { grid-template-columns: 1fr 1fr; } }
.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; font-size: .875rem; font-weight: 500; color: var(--azulPrincipal); margin-bottom: .5rem; }
.form-label .req { color: var(--naranjaAccento); }
.form-label .opt { color: var(--grisMedio); font-size: .75rem; font-weight: 400; }
.form-input, .form-textarea {
  width: 100%;
  padding: .75rem 1rem;
  background: var(--blanco);
  border: 1px solid var(--azulClaro);
  border-radius: .5rem;
  color: var(--azulOscuro);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color .2s, box-shadow .2s;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--grisMedio); }
.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--azulPrincipal);
  box-shadow: 0 0 0 2px var(--azulClaro);
}
.form-input.error, .form-textarea.error { border-color: #ef4444; }
.form-error { margin-top: .25rem; font-size: .875rem; color: #ef4444; }
.form-textarea { resize: none; }

/* ===== Toast ===== */
.toast-viewport {
  position: fixed;
  bottom: 0; right: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1rem;
  max-width: 420px;
  width: 100%;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--blanco);
  border: 1px solid var(--azulMedio);
  border-radius: .5rem;
  padding: 1.5rem 2rem 1.5rem 1.5rem;
  box-shadow: var(--shadow-lg);
  animation: toastIn .3s ease-out;
}
.toast.success { border-color: var(--azulPrincipal); }
.toast.error { border-color: #ef4444; background: #fef2f2; }
.toast-title { font-size: .875rem; font-weight: 600; color: var(--azulOscuro); }
.toast.error .toast-title { color: #b91c1c; }
.toast-desc { font-size: .875rem; color: var(--grisMedio); margin-top: .25rem; }
.toast-close {
  position: absolute;
  top: .5rem; right: .5rem;
  background: transparent;
  color: rgba(0,0,0,.4);
  padding: .25rem;
  border-radius: .25rem;
}
.toast-close:hover { color: rgba(0,0,0,.7); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===== Footer ===== */
.footer {
  background: var(--azulOscuro);
  border-top: 1px solid var(--azulMedio);
  padding: 2.5rem 0 0;
}
.footer-grid { display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr 1fr; } }
.footer h3 { font-size: 1.5rem; font-weight: 700; color: var(--blanco); margin-bottom: .5rem; }
.footer h4 { font-size: 1.125rem; font-weight: 600; color: var(--blanco); border-bottom: 1px solid var(--azulMedio); padding-bottom: .5rem; margin-bottom: 1rem; display: inline-block; }
.footer p { color: var(--azulClaro); font-size: .875rem; }
.footer-links { display: flex; flex-direction: column; gap: .5rem; }
.footer-links a { color: var(--blanco); font-size: .875rem; transition: color .2s; }
.footer-links a:hover { color: var(--naranjaAccento); }
.footer-contact { display: flex; flex-direction: column; gap: .75rem; }
.footer-contact-item { display: flex; align-items: flex-start; gap: .75rem; }
.footer-contact-item svg { width: 1.25rem; height: 1.25rem; color: var(--azulClaro); flex-shrink: 0; margin-top: .125rem; }
.footer-contact-item span, .footer-contact-item a { color: var(--blanco); font-size: .875rem; }
.footer-contact-item a:hover { color: var(--naranjaAccento); }
.footer-bottom {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--azulMedio);
  text-align: center;
  color: var(--blanco);
  font-size: .875rem;
  padding-bottom: 1.5rem;
}

/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease-out, transform .6s ease-out;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-dot { animation: none; }
  * { scroll-behavior: auto !important; }
}