/* =========================================================================
   shuntflow.com — estilos
   =========================================================================
   Identidad del icono (shuntflow-icon.svg):
     azul petróleo   #15566A -> #0A2F38 (degradado del fondo)
     blanco verdoso  #E6F4EE
     ámbar           #F5A524
   Sin fuentes ni scripts externos: la web no hace ninguna petición a
   terceros, así que no hay nada que declarar en la política de privacidad
   sobre ella más allá del alojamiento. */

:root {
  --petrol: #15566a;
  --petrol-deep: #0a2f38;
  --mint: #e6f4ee;
  --amber: #f5a524;
  --ink: #0f2a31;
  --muted: #4b6268;
  --line: #cfe3db;
  --paper: #ffffff;
  --radius: 14px;
  --max: 46rem;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--mint);
  line-height: 1.6;
}

* { box-sizing: border-box; }

body { margin: 0; }

a { color: var(--petrol); }
a:hover { color: var(--petrol-deep); }
a:focus-visible, .button:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* --- Cabecera ------------------------------------------------------------ */
.site-header {
  background: linear-gradient(135deg, var(--petrol), var(--petrol-deep));
  color: var(--mint);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--mint);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
}
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.site-header nav { display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.95rem; }
.site-header nav a { color: var(--mint); text-decoration: none; opacity: 0.9; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { opacity: 1; text-decoration: underline; }
.site-header nav .lang { border: 1px solid rgba(230, 244, 238, 0.5); border-radius: 6px; padding: 0 0.45rem; }

/* --- Portada ------------------------------------------------------------- */
.hero {
  background: linear-gradient(135deg, var(--petrol), var(--petrol-deep));
  color: var(--mint);
  padding: 3rem 0 3.5rem;
}
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.2; margin: 0 0 1rem; }
.hero p { font-size: 1.1rem; margin: 0 0 1.5rem; max-width: 38rem; }
.eyebrow {
  display: inline-block;
  color: var(--amber);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
}
.button {
  display: inline-block;
  background: var(--amber);
  color: var(--petrol-deep);
  font-weight: 700;
  text-decoration: none;
  padding: 0.75rem 1.2rem;
  border-radius: 10px;
}
.button:hover { color: var(--petrol-deep); filter: brightness(1.05); }
.hero .note { font-size: 0.9rem; opacity: 0.8; margin-top: 0.75rem; }

main { padding: 2.5rem 0 3rem; }

.cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
}
.card h3 { margin: 0 0 0.4rem; font-size: 1.05rem; color: var(--petrol-deep); }
.card p { margin: 0; color: var(--muted); }

h2 { color: var(--petrol-deep); margin-top: 2.5rem; font-size: 1.4rem; }
h3 { color: var(--petrol-deep); }

.disclaimer {
  border-left: 4px solid var(--amber);
  background: var(--paper);
  padding: 0.9rem 1.1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* --- Páginas legales ----------------------------------------------------- */
.doc h1 { color: var(--petrol-deep); font-size: 1.9rem; margin: 0 0 0.25rem; }
.doc .updated { color: var(--muted); margin-top: 0; }
.doc table { width: 100%; border-collapse: collapse; background: var(--paper); font-size: 0.95rem; }
.doc th, .doc td { border: 1px solid var(--line); padding: 0.55rem 0.7rem; text-align: left; vertical-align: top; }
.doc th { background: #f3faf6; color: var(--petrol-deep); }
.table-scroll { overflow-x: auto; }

.draft {
  background: #fff5e0;
  border: 2px solid var(--amber);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin: 1rem 0 2rem;
}
.draft strong { color: #8a5a00; }

/* Huecos que tiene que completar el titular. Visibles a propósito. */
mark.todo {
  background: var(--amber);
  color: var(--petrol-deep);
  padding: 0 0.3rem;
  border-radius: 4px;
  font-weight: 600;
}

/* --- Pie ----------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--line); padding: 1.5rem 0 2.5rem; color: var(--muted); font-size: 0.9rem; }
.site-footer nav { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 0.5rem; }