/* ===== Tachcloud Engineering — estilos ===== */
:root{
  --navy:#26324A;
  --navy-dark:#202c42;
  --navy-light:#2f3d57;
  --gold:#E8B84B;
  --orange:#F39C21;
  --teal:#1BA098;
  --green:#3DAE4B;
  --red:#E23B2E;
  --text:#e8edf4;
  --muted:#a9b6c9;
  --white:#ffffff;
  --radius:14px;
  --max:1140px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Poppins',sans-serif;
  color:var(--text);
  background:var(--navy);
  line-height:1.65;
}
.container{width:92%;max-width:var(--max);margin:0 auto}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ===== Header / Nav ===== */
#header{
  position:sticky;top:0;z-index:100;
  background:rgba(38,50,74,.95);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.8rem 0}
.nav__logo{display:flex;align-items:center}
.nav__logo-img{height:52px;width:auto}
.nav__menu{list-style:none;display:flex;gap:1.8rem;align-items:center}
.nav__menu a{color:var(--muted);font-weight:500;transition:color .2s}
.nav__menu a:hover{color:var(--gold)}
.nav__cta{
  background:var(--gold);color:var(--navy-dark)!important;
  padding:.5rem 1.2rem;border-radius:30px;font-weight:600;
  transition:transform .2s,box-shadow .2s;
}
.nav__cta:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(232,184,75,.35)}
.nav__toggle,.nav__toggle-check{display:none}

/* ===== Hero ===== */
.hero{
  padding:5rem 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(27,160,152,.18), transparent 40%),
    radial-gradient(circle at 80% 30%, rgba(243,156,33,.15), transparent 40%),
    linear-gradient(180deg,var(--navy-dark),var(--navy));
}
.hero__content{display:flex;align-items:center;gap:3rem;flex-wrap:wrap}
.hero__text-col{flex:1 1 420px;order:2}
.hero__logo-col{flex:0 0 auto;text-align:center;order:1}
.hero__title{font-size:clamp(2rem,5vw,3.4rem);font-weight:700;line-height:1.15}
.hero__logo{
  width:400px;height:auto;
  filter:drop-shadow(0 8px 24px rgba(0,0,0,.3));
}
.hero__title span{color:var(--gold);font-weight:500;font-size:.62em;display:inline-block;margin-top:.4rem}
.hero__text{max-width:560px;margin:1.4rem 0 2.2rem;color:var(--muted);font-size:1.1rem}
.hero__actions{display:flex;gap:1rem;flex-wrap:wrap}
@media(max-width:760px){
  .hero__content{flex-direction:column;text-align:center}
  .hero__actions{justify-content:center}
  .hero__text{margin-left:auto;margin-right:auto}
  .hero__logo{width:280px}
}

/* ===== Botones ===== */
.btn{
  display:inline-block;padding:.85rem 1.8rem;border-radius:30px;
  font-weight:600;transition:transform .2s,box-shadow .2s,background .2s;
}
.btn--primary{background:var(--gold);color:var(--navy-dark)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(232,184,75,.4)}
.btn--ghost{border:1.5px solid var(--muted);color:var(--text)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}

/* ===== Secciones ===== */
.section{padding:5rem 0}
.section--alt{background:var(--navy-dark)}
.section__title{
  font-size:clamp(1.6rem,4vw,2.4rem);font-weight:600;text-align:center;
  position:relative;padding-bottom:1rem;
}
.section__title::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:70px;height:4px;border-radius:4px;
  background:linear-gradient(90deg,var(--orange),var(--teal),var(--green),var(--red));
}
.section__subtitle{text-align:center;color:var(--muted);max-width:620px;margin:1.2rem auto 3rem}

/* ===== Grids / Cards ===== */
.grid{display:grid;gap:1.6rem}
.grid--services{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{
  background:var(--navy-light);border-radius:var(--radius);padding:2rem 1.6rem;
  border:1px solid rgba(255,255,255,.06);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(0,0,0,.3);border-color:rgba(232,184,75,.4)}
.card__icon{
  width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;font-weight:700;margin-bottom:1.1rem;
  background:color-mix(in srgb,var(--c) 20%,transparent);color:var(--c);
}
.card h3{font-size:1.2rem;margin-bottom:.6rem}
.card p{color:var(--muted);font-size:.96rem}

.grid--why{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.why{padding:1.6rem;border-left:3px solid var(--gold);background:rgba(255,255,255,.03);border-radius:0 var(--radius) var(--radius) 0}
.why h3{color:var(--gold);font-size:1.1rem;margin-bottom:.5rem}
.why p{color:var(--muted);font-size:.95rem}

/* ===== Contacto ===== */
.contacto__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:2rem;max-width:800px;margin:0 auto}
.contacto__info p,.contacto__horario{margin-bottom:1.2rem}
.contacto__info a{color:var(--gold)}
.contacto__info strong,.contacto__horario strong{color:var(--white);display:block;margin-bottom:.2rem}
.contacto__horario ul{list-style:none;margin-top:.8rem}
.contacto__horario li{display:flex;justify-content:space-between;padding:.4rem 0;border-bottom:1px solid rgba(255,255,255,.07);color:var(--muted)}

/* ===== Footer ===== */
.footer{background:var(--navy-dark);text-align:center;padding:2rem 0;color:var(--muted);font-size:.9rem;border-top:1px solid rgba(255,255,255,.07)}

/* ===== Responsive nav ===== */
@media(max-width:760px){
  .nav__toggle{display:block;font-size:1.6rem;color:var(--text);cursor:pointer}
  .nav__menu{
    position:absolute;top:100%;left:0;right:0;background:var(--navy-dark);
    flex-direction:column;gap:0;padding:0;max-height:0;overflow:hidden;transition:max-height .3s;
  }
  .nav__menu li{width:100%;text-align:center}
  .nav__menu a{display:block;padding:1rem}
  .nav__cta{border-radius:0}
  .nav__toggle-check:checked ~ .nav__menu{max-height:360px}
}

/* ========================================================= */
/* ===== MEJORAS VISUALES (añadido, sin cambiar textos) ==== */
/* ========================================================= */

/* Hero con degradado animado sutil */
.hero{position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-50%;z-index:0;
  background:conic-gradient(from 0deg,
    rgba(243,156,33,.08),rgba(27,160,152,.08),
    rgba(61,174,75,.08),rgba(226,59,46,.08),rgba(243,156,33,.08));
  animation:spin 28s linear infinite;
}
.hero .container{position:relative;z-index:1}
@keyframes spin{to{transform:rotate(360deg)}}

/* Logo del hero con leve flotación */
.hero__logo{animation:float 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* Título con acento en degradado */
.hero__title{letter-spacing:-.5px}

/* Animación de aparición al hacer scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* Iconos de servicio con gradiente y anillo */
.card{position:relative;overflow:hidden}
.card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--orange),var(--teal),var(--green),var(--red));
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.card:hover::after{transform:scaleX(1)}
.card__icon{
  background:linear-gradient(135deg,color-mix(in srgb,var(--c) 28%,transparent),color-mix(in srgb,var(--c) 8%,transparent));
  box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--c) 35%,transparent);
  transition:transform .3s;
}
.card:hover .card__icon{transform:scale(1.08) rotate(-4deg)}

/* Tarjetas "por qué" con hover */
.why{transition:transform .25s,background .25s,border-color .25s}
.why:hover{transform:translateX(6px);background:rgba(232,184,75,.07)}

/* Nav: subrayado animado y seccion activa */
.nav__menu a:not(.nav__cta){position:relative}
.nav__menu a:not(.nav__cta)::after{
  content:"";position:absolute;left:0;bottom:-4px;width:100%;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:center;transition:transform .25s;
}
.nav__menu a:not(.nav__cta):hover::after,
.nav__menu a.active::after{transform:scaleX(1)}
.nav__menu a.active{color:var(--gold)}

/* Botón volver arriba */
#toTop{
  position:fixed;right:22px;bottom:22px;z-index:200;
  width:48px;height:48px;border:none;border-radius:50%;cursor:pointer;
  background:var(--gold);color:var(--navy-dark);font-size:1.4rem;font-weight:700;
  box-shadow:0 6px 20px rgba(0,0,0,.3);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s,transform .3s,box-shadow .2s;
}
#toTop.show{opacity:1;visibility:visible;transform:none}
#toTop:hover{box-shadow:0 8px 26px rgba(232,184,75,.5);transform:translateY(-3px)}

/* Contacto: tarjetas con fondo */
.contacto__info,.contacto__horario{
  background:var(--navy-light);padding:1.8rem;border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.06);
}
.contacto__horario li:last-child{border-bottom:none}

/* Respeta preferencias de movimiento reducido */
@media(prefers-reduced-motion:reduce){
  .hero::before,.hero__logo{animation:none}
  .reveal{opacity:1;transform:none}
}

/* ========================================================= */
/* ===== SISTEMA DE VISTAS (una seccion a la vez) ========== */
/* ========================================================= */
.view{display:none;animation:fadeView .4s ease}
.view--active{display:block}
@keyframes fadeView{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* La vista de inicio ocupa toda la altura disponible */
#inicio.view--active{min-height:calc(100vh - 76px);display:flex;align-items:center}
#inicio .container{width:92%;max-width:var(--max);margin:0 auto}

/* Boton volver al inicio */
.btn-volver{
  display:inline-flex;align-items:center;gap:.4rem;
  margin-bottom:2rem;padding:.6rem 1.3rem;border-radius:30px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);
  color:var(--muted);font-weight:500;font-size:.95rem;
  transition:background .2s,color .2s,border-color .2s,transform .2s;
}
.btn-volver:hover{
  background:rgba(232,184,75,.12);color:var(--gold);
  border-color:var(--gold);transform:translateX(-4px);
}

/* El boton flotante volver-arriba ya no se usa en el modo vistas */
#toTop{display:none!important}

/* Que cada vista interna tenga buena altura */
.view.section{min-height:calc(100vh - 76px)}