:root {
  --teal: #3DA8A8;
  --teal-dark: #2C7E7E;
  --teal-light: #E8F5F5;
  --text-dark: #222222;
  --text-gray: #5A5A5A;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Lato', sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  color: var(--teal-dark);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.seccion {
  padding: 80px 0;
}

/* HEADER */
.site-header {
  padding: 20px 0;
  border-bottom: 1px solid #eee;
}

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

.logo {
  height: 90px;
}

/* BOTONES */
.btn {
  display: inline-block;
  font-family: 'Lato', sans-serif;
  font-weight: 700;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.btn-header {
  background: var(--teal);
  color: #fff;
  padding: 10px 22px;
  font-size: 14px;
}

.btn-header:hover {
  background: var(--teal-dark);
}

.btn-primary {
  background: var(--teal);
  color: #fff;
  padding: 16px 36px;
  font-size: 17px;
  margin-top: 12px;
}

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

/* HERO */
.hero {
  position: relative;
  padding: 140px 0;
  text-align: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,35,35,0.6), rgba(20,35,35,0.75));
}

.hero .hero-inner {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-family: 'Lato', sans-serif;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #BFE8E8;
  margin-bottom: 14px;
}

.hero h1 {
  color: #fff;
  font-size: 34px;
  font-weight: 600;
  font-style: normal;
  max-width: 720px;
  margin: 0 auto 16px;
}

.hero-sub {
  font-size: 18px;
  color: #f0f0f0;
  margin-bottom: 8px;
}

/* SECCIONES CON FOTO DE FONDO OSCURECIDA */
.seccion-foto {
  position: relative;
  padding: 110px 0;
  text-align: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.seccion-foto::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,35,35,0.55), rgba(20,35,35,0.7));
}

.seccion-foto .container {
  position: relative;
  z-index: 1;
}

.seccion-foto h3 {
  color: #fff;
  font-size: 32px;
  margin-bottom: 14px;
}

.seccion-foto p {
  color: #f0f0f0;
  font-size: 17px;
  max-width: 560px;
  margin: 0 auto 28px;
}

.foto-instrumental {
  background-image: url('instrumental-dental.jpg');
}

.foto-implante {
  background-image: url('implante-corte.jpg');
}

/* QUIENES SOMOS */
.quienes-somos {
  text-align: center;
}

.quienes-somos h3 {
  font-size: 32px;
  margin-bottom: 24px;
}

.quienes-somos p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 17px;
  color: var(--text-gray);
}

/* PROCESO */
.proceso {
  background: var(--teal-light);
  text-align: center;
}

.proceso h3 {
  font-size: 32px;
  margin-bottom: 48px;
}

.proceso-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.paso {
  background: #fff;
  padding: 36px 24px;
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.paso-numero {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.paso h4 {
  font-size: 20px;
  margin-bottom: 10px;
}

.paso p {
  font-size: 15px;
  color: var(--text-gray);
}

/* OFERTA / FORMULARIO */
.oferta {
  background: var(--teal-dark);
  text-align: center;
  color: #fff;
}

.oferta h3 {
  color: #fff;
  font-size: 36px;
  margin-bottom: 8px;
}

.oferta-sub {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 36px;
}

.form-leads {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 420px;
  margin: 0 auto;
}

.form-leads input {
  padding: 14px 16px;
  border: none;
  border-radius: 6px;
  font-family: 'Lato', sans-serif;
  font-size: 15px;
}

.form-leads input:focus {
  outline: 2px solid var(--teal);
}

.form-leads .btn-primary {
  border: none;
  cursor: pointer;
  margin-top: 6px;
}

.hidden-field {
  display: none;
}

/* PAGINA DE GRACIAS */
.gracias {
  text-align: center;
  padding: 120px 0;
}

.gracias h3 {
  font-size: 32px;
  margin-bottom: 16px;
}

.gracias p {
  max-width: 600px;
  margin: 0 auto 28px;
  font-size: 17px;
  color: var(--text-gray);
}

/* CONFIANZA */
.confianza-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}

.confianza-item .icono {
  width: 48px;
  height: 48px;
  color: var(--teal);
  margin-bottom: 16px;
}

.confianza-item h4 {
  font-size: 19px;
  margin-bottom: 10px;
}

.confianza-item p {
  font-size: 15px;
  color: var(--text-gray);
}

/* FOOTER */
.site-footer {
  background: #f7f7f7;
  padding: 40px 0;
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.logo-footer {
  height: 40px;
}

.footer-tel {
  color: var(--teal-dark);
  text-decoration: none;
  font-weight: 700;
}

.footer-copy {
  font-size: 13px;
  color: #999;
  margin-top: 6px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero { padding: 100px 0; }
  .hero h1 { font-size: 26px; }
  .proceso-grid, .confianza-grid { grid-template-columns: 1fr; }
  .btn-header { display: none; }
}