/* ====== Paleta (variables) ====== */
:root{
  --beige: #DCD2C0;        /* cajas */
  --vino: #6D071A;         /* botones */
  --rojo: #8B0000;         /* logo / acento */
  --antracita: #D6C1A6;    /* nav / textos */
  --azul-gris: #D6C1A6;    /* fondo */
  --dorado: #AA8F63;       /* iconos / textos */
  --gris-calido: #C0C0C0;  /* detalles / líneas */
  --blanco: #FFFFFF;
  --negro: #000000;

  --bg: var(--azul-gris);
  --text: #eef1f3;
  --card: var(--beige);
  --card-text: #1f2429;
  --primary: var(--vino);
  --primary-2: var(--rojo);
  --muted: #95a3ad;

  --radius: 16px;
  --shadow: 0 10px 30px rgba(0,0,0,.15);
}

/* ====== Reset base accesible ====== */
*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  color: var(--text);
  background: linear-gradient(160deg, #5a6a75 0%, var(--bg) 60%, #54626c 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
p{ line-height: 1.6; margin: 0.5rem 0 0; }
h1,h2,h3{ margin:0 0 .5rem; line-height:1.2; }

/* ====== Utilitarios ====== */
.container{
  width:min(1140px, 92vw);
  margin-inline: auto;
}
.section{ padding: 64px 0; }
.section.alt{ background: rgba(255,255,255,.04); }
.section-head{
  text-align:center;
  margin-bottom: 32px;
}
.section-head h2{
  font-size: clamp(1.4rem, 1.2rem + 1.4vw, 2rem);
  color: var(--blanco);
}
.section-head p{ color: var(--text); opacity:.9; }

/* ====== Skip link ====== */
.skip-link{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{ left: 16px; top:16px; width:auto; height:auto; background: var(--blanco); color: var(--antracita); padding:8px 12px; border-radius:10px; }

/* ====== Header / Nav ====== */
.site-header{
  position: sticky; top:0; z-index: 20;
  background: rgba(49,51,56,.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:12px 0;
}
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; letter-spacing:.4px; }
.brand span{ color: var(--dorado); }

.nav-toggle{ display:none; }
.nav-burger{
  display:none; width:40px; height:40px; padding:8px; cursor:pointer;
}
.nav-burger span{
  display:block; height:2px; background: var(--blanco); margin:6px 0; transition:.2s;
}

.site-nav ul{ display:flex; gap:18px; align-items:center; list-style:none; padding:0; margin:0; }
.site-nav a{ padding:10px 12px; border-radius:12px; transition: background .2s ease, color .2s ease; }
.site-nav a:hover{ background: rgba(100,255,255,.08); }

/* ====== Botones ====== */
.btn{
  display:inline-block; padding:12px 18px; border-radius: 999px; font-weight:600; border:1px solid transparent; transition: all .2s ease;
}
.btn-primary{
  background: linear-gradient(180deg, var(--primary-2) 0%, var(--primary) 100%);
  color: var(--blanco);
  box-shadow: var(--shadow);
}
.btn-primary:hover{ filter: brightness(1.05); transform: translateY(-1px); }
.btn-ghost{
  border-color: rgba(255,255,255,.3);
  color: var(--blanco);
  background: transparent;
}
.btn-ghost:hover{ background: rgba(255,255,255,.08); }

/* ====== Hero ====== */
.hero{
  padding: 56px 0 28px;
}
.hero-inner{
  display:grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center;
}
.hero-copy h1{
  font-size: clamp(1.8rem, 1.3rem + 2.2vw, 2.8rem);
  font-weight: 800;
}
.hero-copy .accent{ color: var(--dorado); }
.hero-copy p{ font-size: 1.05rem; color: var(--text); opacity:.95; }
.hero-cta{ display:flex; gap:12px; margin-top:14px; flex-wrap: wrap; }

.hero-card{
  background: linear-gradient(180deg, rgba(220,210,192,.94) 0%, rgba(220,210,192,.88) 100%);
  color: var(--card-text);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gris-calido);
}
.hero-card ul{
  margin:0; padding-left: 1.2rem;
}
.hero-card li{ margin: 6px 0; }

/* ====== Grid de servicios ====== */
.grid{
  display:grid; gap:18px;
}
.cards{
  grid-template-columns: repeat(3, 1fr);
}
.card{
  background: var(--card);
  color: var(--card-text);
  border-radius: var(--radius);
  padding:20px;
  border:1px solid var(--gris-calido);
  box-shadow: var(--shadow);
}
.card h3{
  color: var(--antracita);
  margin-bottom: 6px;
}
.card p{ color:#363c42; }
.list{ margin:10px 0 0 1rem; color:#2c3338; }
.list li{ margin: 4px 0; }

/* ====== Sobre ====== */
.about{
  display:grid; grid-template-columns: 1.2fr .8fr; gap:20px; align-items: start;
}
.about-copy p{ opacity:.95; }
.ticks{
  margin: 10px 0 0; padding-left: 1.2rem;
}
.ticks li{ margin: 6px 0; }
.about-box{
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding:18px;
}

/* ====== Confianza / KPIs ====== */
.badges{
  display:grid; grid-template-columns: repeat(3, 1fr); gap:16px;
}
.badge{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 20px;
  text-align:center;
}
.kpi{
  display:block;
  font-size: clamp(1.2rem, .9rem + 2vw, 2rem);
  font-weight: 800;
}

/* ====== Contacto ====== */
.contact-form{
  width:min(760px, 100%);
  margin-inline:auto;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: calc(var(--radius) + 6px);
  padding: 18px;
  box-shadow: var(--shadow);
}
.form-row{
  display:flex; flex-direction: column; gap:6px; margin-bottom:12px;
}
label{ font-weight:600; color: var(--blanco); }
input, textarea{
  width:100%;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.25);
  background: rgba(0,0,0,.15);
  color: var(--blanco);
  padding:12px;
  outline: none;
}
input::placeholder, textarea::placeholder{ color: rgba(255,255,255,.6); }
input:focus, textarea:focus{ border-color: var(--dorado); box-shadow: 0 0 0 3px rgba(170,143,99,.25); }
.form-note{ font-size:.9rem; color: var(--muted); margin-top:8px; }

/* ====== Footer ====== */
.site-footer{
  border-top:1px solid rgba(255,255,255,.12);
  background: #2a2d31;
  margin-top: 40px;
}
.footer-inner{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding: 18px 0;
}
.brand.mini{ display:flex; align-items:center; gap:8px; font-weight:700; color: var(--dorado); }
.footer-link{ color: var(--text); opacity:.9; margin-right: 12px; }
.footer-link:hover{ opacity:1; text-decoration: underline; }

/* ====== Responsive ====== */
@media (max-width: 960px){
  .hero-inner{ grid-template-columns: 1fr; }
  .about, .cards, .badges{ grid-template-columns: 1fr; }
}

@media (max-width: 760px){
  .nav-burger{ display:block; }
  .site-nav{
    position: fixed; inset: 64px 16px auto 16px;
    background: rgba(49,51,56,.98);
    border:1px solid rgba(255,255,255,.08);
    border-radius: 14px;
    transform: translateY(-20px);
    opacity:0; pointer-events:none;
    transition: all .2s ease;
  }
  .site-nav ul{ flex-direction: column; align-items: stretch; padding:10px; }
  .site-nav a{ padding:12px 14px; }

  .nav-toggle:checked ~ .site-nav{
    transform: translateY(0); opacity:1; pointer-events:auto;
  }
  .nav-toggle:checked + .nav-burger span:nth-child(1){ transform: translateY(8px) rotate(45deg); }
  .nav-toggle:checked + .nav-burger span:nth-child(2){ opacity:0; }
  .nav-toggle:checked + .nav-burger span:nth-child(3){ transform: translateY(-8px) rotate(-45deg); }
}