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

:root {
  --blue:    #1a8fe3;
  --green:   #2ebd52;
  --yellow:  #f7c600;
  --pink:    #e0197d;
  --wa:      #25d366;
  --wa-dark: #128c7e;
  --dark:    #1a1a1a;
  --gray:    #f7f8fa;
  --border:  #ebebeb;
  --muted:   #888;
  --white:   #ffffff;
  --rainbow: linear-gradient(90deg, var(--blue), var(--green), var(--yellow));
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Open Sans', sans-serif;
  background: var(--white);
  color: var(--dark);
  line-height: 1.6;
}

/* HEADER */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 40px;
  background: var(--white);
  border-bottom: 3px solid transparent;
  border-image: var(--rainbow) 1;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}

.logo { display: flex; align-items: baseline; gap: 8px; }

.logo-brand {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  font-weight: 900;
  background: var(--rainbow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}

.logo-sub {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.btn-wa-header {
  background: var(--wa);
  color: var(--white);
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 10px 24px;
  border-radius: 50px;
  transition: background 0.2s, transform 0.2s;
}

.btn-wa-header:hover { background: var(--wa-dark); transform: translateY(-1px); }

/* HERO */
.hero {
  background: var(--white);
  text-align: center;
  padding: 80px 24px 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: var(--rainbow);
}

.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--dark);
}

.hero h1 span {
  background: var(--rainbow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1rem;
  color: var(--muted);
  letter-spacing: 1px;
}

.hero-sub {
  font-size: 0.82rem;
  color: #bbb;
}

/* BOTÓN WHATSAPP PRINCIPAL */
.btn-wa-main {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--wa);
  color: var(--white);
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  padding: 18px 44px;
  border-radius: 50px;
  box-shadow: 0 8px 28px rgba(37,211,102,0.35);
  transition: all 0.25s;
  margin-top: 8px;
}

.btn-wa-main:hover {
  background: var(--wa-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(37,211,102,0.45);
}

/* TRABAJOS */
.trabajos {
  padding: 72px 24px;
  background: var(--gray);
  text-align: center;
}

.trabajos h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
}

.trabajos h2::after {
  content: '';
  display: block;
  height: 4px;
  border-radius: 2px;
  background: var(--rainbow);
  margin-top: 10px;
}

.galeria {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 960px;
  margin: 0 auto;
}

.galeria-item {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 3/4;
  box-shadow: 0 4px 20px rgba(0,0,0,0.10);
}

.galeria-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.galeria-item:hover img { transform: scale(1.04); }

.galeria-item span {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(26,26,26,0.85));
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 24px 14px 14px;
  display: block;
}

/* PRECIOS */
.precios {
  padding: 72px 24px;
  background: var(--white);
  text-align: center;
}

.precios h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
  position: relative;
  display: inline-block;
}

.precios h2::after {
  content: '';
  display: block;
  height: 4px;
  border-radius: 2px;
  background: var(--rainbow);
  margin-top: 10px;
}

.precios-sub {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 16px 0 48px;
}

.precios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.precio-card {
  background: var(--gray);
  border-radius: 16px;
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  border: 2px solid var(--border);
  transition: all 0.25s;
}

.precio-card:hover {
  border-color: var(--wa);
  transform: translateY(-5px);
  box-shadow: 0 10px 32px rgba(0,0,0,0.09);
}

.precio-card:nth-child(1) { border-top: 4px solid var(--blue); }
.precio-card:nth-child(2) { border-top: 4px solid var(--green); }
.precio-card:nth-child(3) { border-top: 4px solid var(--green); }
.precio-card:nth-child(4) { border-top: 4px solid var(--yellow); }

.precio-icon { font-size: 2rem; }

.precio-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--dark);
}

.precio-desc {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: -6px;
}

.precio-tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--dark);
}

.precio-tag span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
}

.precio-filas {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.precio-fila {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--white);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.precio-fila strong {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--dark);
}

.precio-card ul {
  list-style: none;
  font-size: 0.82rem;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 100%;
  text-align: left;
}

.precio-card ul li::before { content: "✓  "; color: var(--wa); font-weight: 700; }

.precio-wa {
  margin-top: auto;
  background: var(--wa);
  color: var(--white);
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 10px 20px;
  border-radius: 50px;
  transition: background 0.2s;
  width: 100%;
  display: block;
}

.precio-wa:hover { background: var(--wa-dark); }

/* CTA FINAL */
.cta-final {
  background: var(--gray);
  text-align: center;
  padding: 80px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  border-top: 4px solid transparent;
  border-image: var(--rainbow) 1;
}

.cta-final h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--dark);
}

.cta-final p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

/* BOTÓN FLOTANTE */
.wa-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 60px;
  height: 60px;
  background: var(--wa);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
  z-index: 999;
  transition: all 0.3s;
  text-decoration: none;
}

.wa-float:hover {
  background: var(--wa-dark);
  transform: scale(1.1);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .precios-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.1rem; }
  .btn-wa-main { font-size: 1rem; padding: 16px 28px; }
  .galeria { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
  .cta-final h2 { font-size: 1.5rem; }
  .header { padding: 14px 20px; }
  .logo-brand { font-size: 1.3rem; }
}

@media (max-width: 480px) {
  .hero { padding: 56px 20px; }
  .hero h1 { font-size: 1.8rem; }
  .precios-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
}