/* ============================================================
   DATERO — estilos.css
   datero.mx
   ============================================================ */

/* ----- Reset y variables ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --azul:        #1D4ED8;
  --azul-hover:  #1E40AF;
  --azul-claro:  #DBEAFE;
  --cian:        #0EA5E9;
  --oscuro:      #0F172A;
  --oscuro-2:    #1E293B;
  --gris:        #64748B;
  --gris-borde:  #E2E8F0;
  --gris-fondo:  #F8FAFC;
  --blanco:      #FFFFFF;
  --verde:       #10B981;
  --radio:       14px;
  --radio-sm:    8px;
  --sombra:      0 2px 16px rgba(15,23,42,.08);
  --sombra-lg:   0 8px 40px rgba(15,23,42,.14);
  --trans:       .2s ease;
}

html  { scroll-behavior: smooth; }
body  {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--oscuro);
  line-height: 1.6;
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
}
img   { max-width: 100%; display: block; }
a     { color: inherit; text-decoration: none; }
ul    { list-style: none; }

/* ----- Utilitarios ----- */
.contenedor {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.etiqueta {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--azul);
  background: var(--azul-claro);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
}

/* ----- Botones ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: var(--radio-sm);
  font-weight: 600;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--trans);
  white-space: nowrap;
  text-decoration: none;
}

.btn--primario { background: var(--azul); color: var(--blanco); }
.btn--primario:hover {
  background: var(--azul-hover);
  transform: translateY(-1px);
  box-shadow: var(--sombra);
}

.btn--secundario {
  background: transparent;
  color: var(--blanco);
  border: 2px solid rgba(255,255,255,.4);
}
.btn--secundario:hover { border-color: var(--blanco); background: rgba(255,255,255,.1); }

.btn--borde {
  background: transparent;
  color: var(--azul);
  border: 2px solid var(--azul);
}
.btn--borde:hover { background: var(--azul); color: var(--blanco); }

.btn--whatsapp { background: #25D366; color: var(--blanco); }
.btn--whatsapp:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,211,102,.3);
}

/* ----- Header ----- */
.header {
  position: sticky;
  top: 0;
  background: rgba(15,23,42,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.07);
  z-index: 100;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

.nav__logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blanco);
  letter-spacing: -.03em;
  flex-shrink: 0;
}
.nav__logo span { color: var(--cian); }

.nav__links {
  display: none;
  gap: 28px;
}
.nav__links a {
  color: rgba(255,255,255,.7);
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--trans);
}
.nav__links a:hover { color: var(--blanco); }

@media (min-width: 768px) { .nav__links { display: flex; } }

/* ----- Hero ----- */
.hero {
  background: linear-gradient(140deg, var(--oscuro) 0%, var(--oscuro-2) 55%, #1a3461 100%);
  padding: 88px 0 104px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(14,165,233,.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero__titulo {
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.13;
  color: var(--blanco);
  letter-spacing: -.03em;
  max-width: 780px;
  margin: 0 auto 22px;
}
.hero__titulo em { font-style: normal; color: var(--cian); }

.hero__sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: rgba(255,255,255,.68);
  max-width: 520px;
  margin: 0 auto 44px;
}

.hero__acciones {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
@media (min-width: 480px) {
  .hero__acciones { flex-direction: row; justify-content: center; }
}

.hero__numeros {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-top: 72px;
  flex-wrap: wrap;
  padding-top: 48px;
  border-top: 1px solid rgba(255,255,255,.1);
}

.hero__num strong {
  display: block;
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--blanco);
  letter-spacing: -.03em;
}
.hero__num span {
  font-size: .82rem;
  color: rgba(255,255,255,.5);
}

/* ----- Secciones ----- */
section { padding: 88px 0; }

.sec-header { margin-bottom: 56px; }
.sec-header--centro { text-align: center; }
.sec-header--centro .sec-sub { margin: 0 auto; }

.sec-titulo {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: 1.18;
  margin-bottom: 14px;
}
.sec-sub {
  font-size: 1.05rem;
  color: var(--gris);
  max-width: 560px;
  line-height: 1.7;
}

/* ----- Problema ----- */
.problema { background: var(--gris-fondo); }

.problema__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 768px) { .problema__grid { grid-template-columns: repeat(3, 1fr); } }

.dolor {
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: var(--radio);
  padding: 32px;
  transition: box-shadow var(--trans);
}
.dolor:hover { box-shadow: var(--sombra-lg); }

.dolor__icono {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  background: var(--azul-claro);
}

.dolor h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.dolor p { font-size: .93rem; color: var(--gris); line-height: 1.65; }

/* ----- Servicios ----- */
.servicios__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}
@media (min-width: 768px) { .servicios__grid { grid-template-columns: repeat(3, 1fr); } }

.srv {
  border: 2px solid var(--gris-borde);
  border-radius: var(--radio);
  padding: 36px 28px 32px;
  position: relative;
  transition: all var(--trans);
  background: var(--blanco);
}
.srv:hover { box-shadow: var(--sombra-lg); transform: translateY(-4px); }

.srv--top {
  border-color: var(--azul);
  box-shadow: var(--sombra-lg);
}

.srv__badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--azul);
  color: var(--blanco);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 4px 16px;
  border-radius: 100px;
  white-space: nowrap;
}

.srv__icono { font-size: 2rem; margin-bottom: 16px; }

.srv h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.srv .desc {
  color: var(--gris);
  font-size: .92rem;
  margin-bottom: 22px;
  line-height: 1.55;
}

.srv__precio {
  margin-bottom: 24px;
  line-height: 1;
}
.srv__precio strong {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--oscuro);
  letter-spacing: -.04em;
}
.srv__precio span { font-size: .85rem; color: var(--gris); }

.srv__lista { margin-bottom: 28px; }
.srv__lista li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .88rem;
  color: var(--gris);
  padding: 5px 0;
}
.srv__lista li::before {
  content: '✓';
  color: var(--verde);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.srv .btn { width: 100%; }

/* Mantenimiento */
.mantenimiento {
  background: var(--gris-fondo);
  border: 1px solid var(--gris-borde);
  border-radius: var(--radio);
  padding: 32px;
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
@media (min-width: 600px) {
  .mantenimiento {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}
.mantenimiento h4 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.mantenimiento p { font-size: .9rem; color: var(--gris); }
.mantenimiento .precio-mant {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--oscuro);
  letter-spacing: -.02em;
  white-space: nowrap;
}

/* ----- Demos ----- */
.demos { background: var(--gris-fondo); }

.demos__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 640px) { .demos__grid { grid-template-columns: repeat(2, 1fr); } }

.demo-card {
  background: var(--blanco);
  border-radius: var(--radio);
  overflow: hidden;
  border: 1px solid var(--gris-borde);
  transition: all var(--trans);
  display: flex;
  flex-direction: column;
}
.demo-card:hover { box-shadow: var(--sombra-lg); transform: translateY(-4px); }

.demo-visual {
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.2rem;
  position: relative;
}
.demo-visual--azul  { background: linear-gradient(135deg, #1E3A8A, #2563EB); }
.demo-visual--verde { background: linear-gradient(135deg, #065F46, #059669); }

.demo-visual__pill {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255,255,255,.2);
  backdrop-filter: blur(4px);
  color: var(--blanco);
  font-size: .72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
}

.demo-info {
  padding: 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.demo-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.demo-info p {
  color: var(--gris);
  font-size: .92rem;
  flex: 1;
  margin-bottom: 18px;
  line-height: 1.6;
}

/* ----- Contacto ----- */
.contacto {
  background: linear-gradient(135deg, var(--oscuro) 0%, var(--oscuro-2) 100%);
  text-align: center;
}
.contacto .sec-titulo { color: var(--blanco); }
.contacto .sec-sub { color: rgba(255,255,255,.62); margin: 0 auto 40px; }

/* ----- Footer ----- */
.footer {
  background: var(--oscuro);
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 28px 0;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  color: rgba(255,255,255,.4);
  font-size: .84rem;
}
@media (min-width: 640px) {
  .footer__inner { flex-direction: row; justify-content: space-between; }
}
.footer__logo {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--blanco);
  letter-spacing: -.02em;
}
.footer__logo span { color: var(--cian); }


/* ============================================================
   DEMOS — estilos compartidos
   ============================================================ */

.demo-page {
  min-height: 100vh;
  background: var(--gris-fondo);
}

.demo-header {
  background: var(--blanco);
  border-bottom: 1px solid var(--gris-borde);
  padding: 14px 0;
}
.demo-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.demo-header__neg { font-weight: 700; font-size: 1.1rem; }
.demo-header__dir { font-size: .8rem; color: var(--gris); margin-top: 2px; }
.demo-header__pw  { font-size: .8rem; color: var(--gris); }
.demo-header__pw a { color: var(--azul); font-weight: 600; }

.demo-body { padding: 48px 0 80px; }

/* ----- Tarjeta de formulario ----- */
.form-card {
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: var(--radio);
  padding: 36px;
  max-width: 560px;
  margin: 0 auto;
  box-shadow: var(--sombra);
}
.form-card h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 6px; }
.form-card .desc { color: var(--gris); font-size: .93rem; margin-bottom: 28px; line-height: 1.6; }

.campo { margin-bottom: 20px; }
.campo label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--oscuro-2);
}
.campo input,
.campo select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gris-borde);
  border-radius: var(--radio-sm);
  font-size: 1rem;
  font-family: inherit;
  color: var(--oscuro);
  background: var(--blanco);
  transition: border-color var(--trans), box-shadow var(--trans);
  -webkit-appearance: none;
  appearance: none;
}
.campo select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 42px;
}
.campo input:focus,
.campo select:focus {
  outline: none;
  border-color: var(--azul);
  box-shadow: 0 0 0 3px rgba(29,78,216,.12);
}

.campo-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ----- Resultado cotizador ----- */
.resultado {
  display: none;
  margin-top: 28px;
  background: #F0F9FF;
  border: 1.5px solid #BAE6FD;
  border-radius: var(--radio);
  padding: 28px;
  animation: fadeIn .3s ease;
}
.resultado.visible { display: block; }

.res__label {
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--gris);
  margin-bottom: 14px;
}
.res__precio-min {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--oscuro);
  line-height: 1;
  margin-bottom: 4px;
}
.res__precio-max {
  font-size: .93rem;
  color: var(--gris);
  margin-bottom: 18px;
}
.res__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}
.chip {
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: .83rem;
  font-weight: 500;
}
.res__nota {
  font-size: .82rem;
  color: var(--gris);
  margin-bottom: 18px;
  line-height: 1.5;
}

/* ----- Calendario ----- */
.cal-wrap { max-width: 600px; margin: 0 auto; }

.cal-titulo { font-size: 1.3rem; font-weight: 700; margin-bottom: 6px; }
.cal-sub { color: var(--gris); font-size: .93rem; margin-bottom: 24px; }

.calendario {
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra);
  margin-bottom: 20px;
}

.cal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--gris-borde);
}
.cal-head h3 { font-size: 1rem; font-weight: 700; }

.cal-btn {
  background: none;
  border: 1px solid var(--gris-borde);
  border-radius: 7px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--gris);
  transition: all var(--trans);
}
.cal-btn:hover { background: var(--gris-fondo); color: var(--oscuro); }

.cal-grid { padding: 14px 20px 20px; }

.semana {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  margin-bottom: 4px;
}
.semana-label {
  text-align: center;
  font-size: .72rem;
  font-weight: 600;
  color: var(--gris);
  padding: 4px 0;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.dias { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; }

.dia {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  font-size: .88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--trans);
  border: none;
  background: none;
  font-family: inherit;
}
.dia:hover:not([disabled]):not(.dia--dom) {
  background: var(--azul-claro);
  color: var(--azul);
}
.dia--hoy     { background: var(--azul); color: var(--blanco); font-weight: 700; }
.dia--hoy:hover { background: var(--azul-hover) !important; color: var(--blanco) !important; }
.dia--sel     { background: var(--azul) !important; color: var(--blanco) !important; }
.dia--dom     { color: #CBD5E1; cursor: not-allowed; }
.dia[disabled]{ opacity: .28; cursor: not-allowed; }
.dia--vacio   { cursor: default; }

/* ----- Horarios ----- */
.horarios {
  display: none;
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: var(--radio);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--sombra);
  animation: fadeIn .25s ease;
}
.horarios.visible { display: block; }
.horarios h3 { font-size: .98rem; font-weight: 700; margin-bottom: 16px; }

.hor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 8px;
}
.hor-btn {
  padding: 10px 8px;
  border: 1.5px solid var(--gris-borde);
  border-radius: 8px;
  background: var(--blanco);
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: all var(--trans);
  font-family: inherit;
}
.hor-btn:hover:not(.hor-btn--ocp) {
  border-color: var(--azul);
  color: var(--azul);
  background: var(--azul-claro);
}
.hor-btn--sel { background: var(--azul); color: var(--blanco); border-color: var(--azul); }
.hor-btn--ocp { opacity: .32; cursor: not-allowed; text-decoration: line-through; }

/* ----- Form cita ----- */
.form-cita { animation: fadeIn .25s ease; }

/* ----- Confirmación ----- */
.confirmacion {
  display: none;
  text-align: center;
  padding: 48px 28px;
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  max-width: 560px;
  margin: 0 auto;
  animation: fadeIn .3s ease;
}
.confirmacion.visible { display: block; }
.conf-icono { font-size: 3rem; margin-bottom: 16px; }
.confirmacion h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
.confirmacion > p { color: var(--gris); margin-bottom: 24px; max-width: 360px; margin-left: auto; margin-right: auto; }

.conf-detalle {
  background: var(--gris-fondo);
  border-radius: 10px;
  padding: 18px 20px;
  text-align: left;
  max-width: 360px;
  margin: 0 auto 20px;
}
.conf-fila {
  display: flex;
  justify-content: space-between;
  font-size: .88rem;
  padding: 6px 0;
  border-bottom: 1px solid var(--gris-borde);
}
.conf-fila:last-child { border-bottom: none; }
.conf-fila span:first-child { color: var(--gris); }
.conf-fila span:last-child  { font-weight: 600; }

.nota-recordatorio {
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  border-radius: 10px;
  padding: 13px 16px;
  font-size: .85rem;
  color: #166534;
  max-width: 360px;
  margin: 0 auto 24px;
  text-align: left;
  line-height: 1.55;
}

/* ----- Animaciones ----- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}