/* =========================================================
   IMMASERVICE S.A.S — Ingeniería Mecánica y Mantenimiento Automotor
   Hoja de estilos principal — tema claro / oscuro (rojo / negro / gris / blanco)
   ========================================================= */

:root {
  --rojo: #e31e24;
  --rojo-oscuro: #a4141a;
  --negro: #0c0c0e;
  --negro-suave: #1a1a1d;
  --texto: #17171a;
  --gris-800: #3a3a3f;
  --gris-600: #6b6b70;
  --gris-400: #8f8f95;
  --gris-200: #e4e4e8;
  --gris-100: #f4f4f6;
  --blanco: #ffffff;
  --radio: 14px;

  /* ---- Superficies que cambian entre modo día / noche ---- */
  --bg: #ffffff;
  --bg-alt: #f4f4f6;
  --card-bg: #ffffff;
  --card-border: #e4e4e8;
  --fg: #17171a;
  --fg-muted: #6b6b70;
  --input-bg: #f4f4f6;
  --input-border: #e4e4e8;
  --header-bg: rgba(255, 255, 255, 0.88);
  --header-bg-scroll: rgba(255, 255, 255, 0.97);
  --grid-line: rgba(12, 12, 14, 0.05);
  --outline-border: rgba(12, 12, 14, 0.18);
  --outline-hover-bg: rgba(12, 12, 14, 0.045);
  --sombra: 0 10px 28px rgba(12, 12, 14, 0.08);
  --sombra-fuerte: 0 16px 40px rgba(12, 12, 14, 0.16);

  --fuente: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fuente-titulo: 'Poppins', var(--fuente);
}

/* ---- Modo nocturno (activado con el botón de tema) ---- */
:root[data-tema="oscuro"] {
  --bg: #0c0c0e;
  --bg-alt: #141416;
  --card-bg: #1c1c1f;
  --card-border: rgba(255, 255, 255, 0.09);
  --fg: #f4f4f6;
  --fg-muted: #a3a3a8;
  --input-bg: #232326;
  --input-border: rgba(255, 255, 255, 0.14);
  --header-bg: rgba(12, 12, 14, 0.85);
  --header-bg-scroll: rgba(12, 12, 14, 0.97);
  --grid-line: rgba(255, 255, 255, 0.06);
  --outline-border: rgba(255, 255, 255, 0.22);
  --outline-hover-bg: rgba(255, 255, 255, 0.06);
  --sombra: 0 10px 28px rgba(0, 0, 0, 0.35);
  --sombra-fuerte: 0 16px 40px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; min-width: 0; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--fuente);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

.contenedor {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--fuente-titulo);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 16px;
  color: var(--fg);
}

.etiqueta {
  display: inline-block;
  color: var(--rojo);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 13px;
  margin-bottom: 10px;
}

.texto-suave { color: var(--fg-muted); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 15.5px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.btn-primario {
  background: var(--rojo);
  color: #ffffff;
  box-shadow: 0 8px 22px rgba(227, 30, 36, 0.28);
}
.btn-primario:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(227, 30, 36, 0.4); }
.btn-secundario {
  background: transparent;
  border-color: var(--outline-border);
  color: var(--fg);
}
.btn-secundario:hover { border-color: var(--fg); background: var(--outline-hover-bg); }
.btn-bloque { width: 100%; justify-content: center; }
.btn-grande { padding: 18px 34px; font-size: 17px; }

/* ---------- Botón de tema (día / noche) ---------- */
.btn-tema {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--fg);
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}
.btn-tema:hover { transform: translateY(-1px); border-color: var(--rojo); color: var(--rojo); }
.btn-tema svg { width: 20px; height: 20px; }
.btn-tema .icono-luna { display: block; }
.btn-tema .icono-sol { display: none; }
:root[data-tema="oscuro"] .btn-tema .icono-luna { display: none; }
:root[data-tema="oscuro"] .btn-tema .icono-sol { display: block; }

/* ---------- Logos que cambian entre modo día / noche ---------- */
/* Se usan solo donde el fondo cambia con el tema (encabezado).
   El pie de página, la tarjeta de flotas y el panel del hero son siempre
   oscuros por diseño, así que ahí se usa directamente el logo oscuro. */
.logo-noche { display: none; }
:root[data-tema="oscuro"] .logo-dia { display: none; }
:root[data-tema="oscuro"] .logo-noche { display: block; }

/* ---------- Encabezado ---------- */
.encabezado {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.encabezado.con-sombra { background: var(--header-bg-scroll); box-shadow: 0 6px 20px rgba(12, 12, 14, 0.06); }
.encabezado .barra {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  gap: 16px;
}
.marca { display: flex; align-items: center; gap: 10px; }
.marca img { height: 90px; width: auto; }
.nav-principal { display: flex; align-items: center; gap: 34px; }
.nav-principal a {
  font-weight: 600;
  font-size: 15px;
  color: var(--fg);
  opacity: 0.78;
  transition: opacity 0.2s, color 0.2s;
}
.nav-principal a:hover { opacity: 1; color: var(--rojo); }
.acciones-header { display: flex; align-items: center; gap: 12px; }
.btn-menu {
  display: none;
  background: transparent;
  border: none;
  color: var(--fg);
  font-size: 26px;
  cursor: pointer;
}

@media (max-width: 900px) {
  .nav-principal {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--card-bg);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 10px 24px 20px;
    border-bottom: 1px solid var(--card-border);
    box-shadow: var(--sombra);
    transform: translateY(-140%);
    transition: transform 0.3s ease, background-color 0.3s ease;
  }
  .nav-principal.abierto { transform: translateY(0); }
  .nav-principal a { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--card-border); }
  .btn-menu { display: block; }
  .acciones-header .btn span.txt-larga { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 156px 0 100px;
  background:
    radial-gradient(circle at 84% 12%, rgba(227,30,36,0.10), transparent 45%),
    radial-gradient(circle at 6% 95%, rgba(227,30,36,0.08), transparent 40%),
    var(--bg);
  overflow: hidden;
  transition: background-color 0.3s ease;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 70% 30%, black, transparent 70%);
  pointer-events: none;
}
.hero .contenedor { position: relative; z-index: 2; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}
.hero h1 { font-size: clamp(32px, 4.6vw, 54px); color: var(--fg); }
.hero h1 span { color: var(--rojo); }
.hero p.intro { font-size: 18px; color: var(--fg-muted); max-width: 540px; margin-bottom: 34px; }
.hero-acciones { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 12px 26px; }
.hero-chip { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--fg-muted); font-weight: 600; }
.hero-chip svg { width: 18px; height: 18px; color: var(--rojo); flex-shrink: 0; }

/* Panel del hero: siempre oscuro por diseño, sin importar el tema del sitio */
.hero-visual {
  position: relative;
  background: linear-gradient(155deg, var(--negro), #17171a 60%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 22px;
  padding: 34px;
  box-shadow: var(--sombra-fuerte);
}
.hero-visual .logo-grande { max-width: 100%; width: 340px; margin: 0 auto 22px; }
.hero-visual-lista { display: grid; gap: 12px; }
.hero-visual-item {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 13px 16px;
  font-size: 14.5px;
  font-weight: 600;
  color: #ffffff;
}
.hero-visual-item .icono {
  width: 34px; height: 34px; border-radius: 9px;
  background: rgba(227,30,36,0.2);
  display: flex; align-items: center; justify-content: center;
  color: #ff5b60; flex-shrink: 0;
}
.hero-visual-item .icono svg { width: 18px; height: 18px; }

@media (max-width: 900px) {
  .hero { padding: 120px 0 60px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
}

/* ---------- Franja de confianza ---------- */
.franja {
  background: var(--bg-alt);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  padding: 24px 0;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.franja-lista {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px 30px;
}
.franja-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 14.5px; font-weight: 600; color: var(--fg);
  flex: 1 1 220px;
}
.franja-item svg { width: 22px; height: 22px; color: var(--rojo); flex-shrink: 0; }

/* ---------- Secciones genéricas ---------- */
.seccion { padding: 96px 0; }
.seccion-cabecera { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.seccion-cabecera h2 { font-size: clamp(26px, 3.4vw, 38px); }
.seccion-cabecera p { color: var(--fg-muted); font-size: 16.5px; }
.bg-suave { background: var(--bg-alt); transition: background-color 0.3s ease; }

/* ---------- Grid de servicios ---------- */
.grid-servicios {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
@media (max-width: 1000px) { .grid-servicios { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-servicios { grid-template-columns: 1fr; } }

.tarjeta-servicio {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radio);
  padding: 30px 24px;
  box-shadow: var(--sombra);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.3s ease;
}
.tarjeta-servicio:hover {
  transform: translateY(-6px);
  border-color: rgba(227,30,36,0.45);
  box-shadow: var(--sombra-fuerte);
}
.tarjeta-servicio .icono {
  width: 52px; height: 52px; border-radius: 13px;
  background: rgba(227,30,36,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--rojo); margin-bottom: 20px;
}
.tarjeta-servicio .icono svg { width: 27px; height: 27px; }
.tarjeta-servicio h3 { font-size: 18px; margin-bottom: 10px; }
.tarjeta-servicio p { color: var(--fg-muted); font-size: 14.5px; margin: 0; }

/* ---------- Por qué elegirnos ---------- */
.grid-ventajas {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
@media (max-width: 900px) { .grid-ventajas { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-ventajas { grid-template-columns: 1fr; } }
.tarjeta-ventaja {
  text-align: center;
  padding: 10px 14px;
}
.tarjeta-ventaja .num {
  width: 60px; height: 60px; margin: 0 auto 18px;
  border-radius: 50%;
  border: 2px solid var(--rojo);
  display: flex; align-items: center; justify-content: center;
  color: var(--rojo);
  font-family: var(--fuente-titulo);
  font-weight: 700; font-size: 20px;
}
.tarjeta-ventaja h3 { font-size: 17px; margin-bottom: 8px; }
.tarjeta-ventaja p { font-size: 14px; color: var(--fg-muted); margin: 0; }

/* ---------- Sección transportadoras (flotas) ---------- */
/* Bloque oscuro intencional para dar contraste, sin importar el tema del sitio */
.flotas {
  background: linear-gradient(135deg, #17171a, var(--negro) 70%);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.flotas h2, .flotas .etiqueta { color: #ffffff; }
.flotas .etiqueta { color: #ff5b60; }
.flotas > .contenedor > div:first-child > p.texto-suave { color: #b9b9be; }
.flotas-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 54px;
  align-items: center;
}
@media (max-width: 900px) { .flotas-grid { grid-template-columns: 1fr; } }
.flotas-lista { display: grid; gap: 16px; margin: 28px 0 34px; }
.flotas-lista li {
  display: flex; gap: 14px; align-items: flex-start;
  font-size: 15.5px;
}
.flotas-lista li svg {
  width: 22px; height: 22px; color: #ff5b60; flex-shrink: 0; margin-top: 2px;
}
.flotas-lista li b { color: #ffffff; }
.flotas-lista li span { color: #b9b9be; }

.panel-flotas {
  background: var(--negro-suave);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 30px;
  box-shadow: var(--sombra-fuerte);
  color: #ffffff;
}
.panel-flotas .fila {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.09);
  font-size: 14.5px;
}
.panel-flotas .fila:last-child { border-bottom: none; }
.pill {
  font-size: 11.5px; font-weight: 700; padding: 4px 11px; border-radius: 20px;
  background: rgba(46, 204, 113, 0.18); color: #4fe092; letter-spacing: 0.4px;
  white-space: nowrap;
}
.pill.alerta { background: rgba(227,30,36,0.22); color: #ff7f83; }
.pill.pendiente { background: rgba(255, 193, 7, 0.2); color: #ffd166; }
.panel-flotas .nota {
  margin-top: 18px; font-size: 12.5px; color: #a3a3a8;
  border-top: 1px dashed rgba(255,255,255,0.12); padding-top: 14px;
}

/* ---------- CTA banda ---------- */
.cta-banda {
  background: linear-gradient(120deg, var(--rojo-oscuro), var(--rojo));
  padding: 58px 0;
}
.cta-banda-interior {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.cta-banda h2 { margin: 0 0 6px; font-size: clamp(22px, 3vw, 30px); color: #ffffff; }
.cta-banda p { margin: 0; color: rgba(255,255,255,0.9); font-size: 15.5px; }
.cta-banda .btn-secundario { border-color: rgba(255,255,255,0.6); color: #ffffff; }
.cta-banda .btn-secundario:hover { background: rgba(255,255,255,0.15); border-color: #ffffff; }
.cta-banda .btn-primario { background: var(--negro); box-shadow: none; }
.cta-banda .btn-primario:hover { background: #000; }

/* ---------- Proceso ---------- */
.grid-proceso {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: paso;
}
@media (max-width: 900px) { .grid-proceso { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-proceso { grid-template-columns: 1fr; } }
.paso {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radio);
  padding: 28px 22px;
  box-shadow: var(--sombra);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.paso::before {
  counter-increment: paso;
  content: counter(paso);
  position: absolute; top: -16px; left: 22px;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--rojo); color: #ffffff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-family: var(--fuente-titulo); font-size: 15px;
  box-shadow: 0 4px 10px rgba(227,30,36,0.35);
}
.paso h3 { font-size: 16px; margin: 12px 0 8px; }
.paso p { font-size: 14px; color: var(--fg-muted); margin: 0; }

/* ---------- Contacto ---------- */
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
@media (max-width: 900px) { .contacto-grid { grid-template-columns: 1fr; } }
.tarjeta-contacto {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 30px;
  box-shadow: var(--sombra);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.tarjeta-contacto .fila-contacto {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--card-border);
}
.tarjeta-contacto .fila-contacto:last-child { border-bottom: none; }
.tarjeta-contacto .icono {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: rgba(227,30,36,0.1); color: var(--rojo);
  display: flex; align-items: center; justify-content: center;
}
.tarjeta-contacto .icono svg { width: 22px; height: 22px; }
.tarjeta-contacto strong { display: block; font-size: 15px; margin-bottom: 3px; color: var(--fg); }
.tarjeta-contacto span, .tarjeta-contacto a {
  color: var(--fg-muted); font-size: 14.5px;
  overflow-wrap: anywhere; word-break: break-word;
}
.tarjeta-contacto a:hover { color: var(--rojo); }
.tarjeta-contacto .fila-contacto > div { min-width: 0; }

.form-cotizar { display: grid; gap: 14px; }
.form-cotizar label { font-size: 13.5px; font-weight: 600; color: var(--fg-muted); margin-bottom: 5px; display: block; }
.form-cotizar input, .form-cotizar select, .form-cotizar textarea {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  padding: 13px 14px;
  color: var(--fg);
  font-family: var(--fuente);
  font-size: 14.5px;
  transition: background-color 0.3s ease, border-color 0.2s ease;
}
.form-cotizar input:focus, .form-cotizar select:focus, .form-cotizar textarea:focus {
  outline: none; border-color: var(--rojo); background: var(--card-bg);
}
.form-cotizar textarea { resize: vertical; min-height: 96px; }
.form-cotizar .fila-doble { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .form-cotizar .fila-doble { grid-template-columns: 1fr; } }

.form-botones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.form-botones .btn { flex: 1 1 200px; justify-content: center; }
.form-botones .btn-secundario { border-color: var(--card-border); }
.form-botones .btn-secundario:hover { border-color: var(--fg); }
.form-botones .btn[disabled] { opacity: 0.65; cursor: not-allowed; transform: none; }

.form-nota { min-height: 18px; margin: 2px 0 0; font-size: 13.5px; font-weight: 600; }
.form-nota.ok { color: #1a9e52; }
.form-nota.error { color: var(--rojo); }

/* ---------- Footer ---------- */
/* Siempre oscuro por diseño, sin importar el tema del sitio */
.pie {
  background: var(--negro);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 56px 0 26px;
  color: #ffffff;
}
.pie-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (max-width: 800px) { .pie-grid { grid-template-columns: 1fr; gap: 30px; } }
.pie-marca img { height: 90px; margin-bottom: 14px; }
.pie-marca p { color: #a3a3a8; font-size: 14px; max-width: 320px; }
.pie h4 { font-size: 14.5px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; color: #a3a3a8; }
.pie ul li { margin-bottom: 11px; }
.pie ul a { font-size: 14.5px; color: #ffffff; opacity: 0.85; }
.pie ul a:hover { opacity: 1; color: #ff5b60; }
.pie-social { display: flex; gap: 12px; margin-top: 18px; }
.pie-social a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  color: #ffffff;
}
.pie-social a:hover { border-color: var(--rojo); color: #ff5b60; }
.pie-social svg { width: 17px; height: 17px; }
.pie-linea {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 22px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: #949499;
}

/* ---------- Botón flotante de WhatsApp ---------- */
/* Se conserva el verde de marca de WhatsApp por reconocimiento universal del ícono */
.wa-flotante {
  position: fixed;
  bottom: 26px; right: 26px;
  z-index: 600;
  width: 62px; height: 62px;
  border-radius: 50%;
  background: #25D366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.4);
  animation: pulso 2.4s infinite;
}
.wa-flotante svg { width: 32px; height: 32px; color: #ffffff; }
@keyframes pulso {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,0.5); }
  70% { box-shadow: 0 0 0 18px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

/* ---------- Utilidades animación ---------- */
.rev { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.rev.visible { opacity: 1; transform: translateY(0); }