/* friendlydrift.com — bóveda de mármol negro: champán dorado, acero y destellos de hielo */

:root {
  --negro: #0c0b0a;
  --carbon: #141312;
  --carbon-2: #1b1a18;
  --carbon-3: #24221f;
  --hondo: #070706;
  --veta: rgba(232, 214, 176, 0.12);
  --veta-2: rgba(232, 214, 176, 0.28);
  --texto: #ece7dd;
  --apagado: #a9a294;
  --oro: #dcb469;
  --oro-claro: #f2d18e;
  --oro-oscuro: #b78f45;
  --hielo: #86e1ee;
  --hielo-oscuro: #4fb9c9;
  --tinta: #15110a;
  --blanco: #ffffff;

  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "DM Sans", "Segoe UI", Roboto, Arial, sans-serif;

  --ancho: 1180px;
  --borde-lat: clamp(1rem, 4vw, 2.4rem);
  --alto-cab: 72px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--alto-cab) + 16px);
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation: none !important; }
}

body { margin: 0; background: var(--negro); color: var(--texto); font-family: var(--sans); font-size: 1.04rem; line-height: 1.72; }
body.fd-fijo { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }
p { margin: 0 0 1em; }
strong { color: var(--oro-claro); font-weight: 700; }

:focus-visible { outline: 2px solid var(--hielo); outline-offset: 3px; border-radius: 4px; }
section:focus { outline: none; }

.fd-oculto { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.fd-salto { position: absolute; top: -90px; left: 1rem; z-index: 999; padding: 0.7rem 1rem; background: var(--oro); color: var(--tinta); font-weight: 700; text-decoration: none; }
.fd-salto:focus { top: 1rem; }

.fd-ancho { width: min(100% - 2 * var(--borde-lat), var(--ancho)); margin-inline: auto; }

/* ---------- botones ---------- */

.fd-boton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.7rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.fd-boton--oro { background: linear-gradient(135deg, var(--oro-claro), var(--oro) 50%, var(--oro-oscuro)); color: var(--tinta); box-shadow: 0 10px 24px -14px rgba(220, 180, 105, 0.9); }
.fd-boton--oro:hover { background: linear-gradient(135deg, #fbe2ad, var(--oro-claro) 50%, var(--oro)); box-shadow: 0 14px 30px -12px rgba(242, 209, 142, 0.9); }
.fd-boton--oro:active { background: var(--oro-oscuro); }
.fd-boton--hielo { background: rgba(134, 225, 238, 0.06); border-color: var(--hielo); color: var(--hielo); }
.fd-boton--hielo:hover { background: var(--hielo); color: var(--tinta); }
.fd-boton--hielo:active { background: var(--hielo-oscuro); }
.fd-boton--xl { min-height: 54px; padding: 0.85rem 1.9rem; font-size: 0.96rem; }

/* ---------- cabecera ---------- */

.fd-cabecera { position: sticky; top: 0; z-index: 300; background: rgba(12, 11, 10, 0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--veta); }
.fd-cabecera__fila { display: flex; align-items: center; gap: 1.1rem; height: var(--alto-cab); }

.fd-marca { display: inline-flex; align-items: center; gap: 0.55rem; color: var(--blanco); text-decoration: none; flex-shrink: 0; }
.fd-marca__sello { width: 26px; height: 26px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, var(--oro-claro), var(--oro) 45%, var(--oro-oscuro)); box-shadow: inset 0 0 0 3px rgba(21, 17, 10, 0.35), 0 0 0 2px var(--veta-2); }
.fd-marca__txt { font-family: var(--serif); font-size: 1.55rem; font-weight: 800; letter-spacing: -0.01em; }
.fd-marca__ec { color: var(--oro); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; }

.fd-menu { margin-left: auto; }
.fd-menu ul { display: flex; gap: 0.1rem; margin: 0; padding: 0; list-style: none; }
.fd-menu__a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.7rem;
  color: var(--apagado);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}
.fd-menu__a::before { content: ""; position: absolute; left: 50%; bottom: 9px; width: 5px; height: 5px; margin-left: -2.5px; background: var(--oro); transform: rotate(45deg) scale(0); transition: transform 0.2s ease; }
.fd-menu__a:hover,
.fd-menu__a[aria-current="true"] { color: var(--oro-claro); }
.fd-menu__a:hover::before,
.fd-menu__a[aria-current="true"]::before { transform: rotate(45deg) scale(1); }

.fd-cabecera__cta { min-height: 44px; padding: 0.5rem 1.1rem; font-size: 0.8rem; white-space: nowrap; }

.fd-conmutador { display: none; align-items: center; gap: 0.6rem; min-height: 44px; padding: 0 0.9rem; border: 1px solid var(--veta-2); border-radius: 2px; background: transparent; color: var(--texto); font-family: var(--sans); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; cursor: pointer; }
.fd-conmutador__barras { display: grid; gap: 6px; width: 20px; }
.fd-conmutador__barras span { display: block; height: 2px; background: var(--oro); transition: transform 0.2s ease; }
.fd-conmutador[aria-expanded="true"] .fd-conmutador__barras span:first-child { transform: translateY(4px) rotate(45deg); }
.fd-conmutador[aria-expanded="true"] .fd-conmutador__barras span:last-child { transform: translateY(-4px) rotate(-45deg); }

.fd-cortina { position: absolute; top: 100%; left: 0; right: 0; height: calc(100vh - var(--alto-cab)); overflow-y: auto; padding: 1.4rem 0 2rem; background: linear-gradient(180deg, var(--carbon), var(--hondo)); border-top: 1px solid var(--oro-oscuro); }
.fd-cortina[hidden] { display: none; }
.fd-cortina__lista { margin: 0; padding: 0; list-style: none; }
.fd-cortina__lista li + li { border-top: 1px solid var(--veta); }
.fd-cortina__a { display: flex; align-items: baseline; gap: 1rem; min-height: 56px; padding: 0.7rem 0.2rem; color: var(--blanco); font-family: var(--serif); font-size: 1.45rem; font-weight: 700; text-decoration: none; }
.fd-cortina__a:hover { color: var(--oro-claro); }
.fd-cortina__n { color: var(--oro); font-family: var(--sans); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em; }
.fd-cortina__ctas { display: grid; gap: 0.8rem; margin-top: 1.6rem; }

/* ---------- portada ---------- */

.fd-portada { position: relative; display: grid; min-height: min(86vh, 760px); align-items: center; overflow: hidden; border-bottom: 1px solid var(--veta); }
.fd-portada__foto { position: absolute; inset: 0; margin: 0; }
.fd-portada__foto img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 40%; }
.fd-portada__foto::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(12, 11, 10, 0.97) 0%, rgba(12, 11, 10, 0.88) 38%, rgba(12, 11, 10, 0.25) 66%, rgba(12, 11, 10, 0.1) 100%), linear-gradient(0deg, rgba(12, 11, 10, 0.9), transparent 30%); }
.fd-portada__capa { position: relative; z-index: 1; padding: clamp(2.4rem, 6vw, 4.4rem) 0; }
.fd-portada__texto { max-width: 600px; }
.fd-portada h1 { margin: 0 0 1.2rem; color: var(--blanco); font-family: var(--serif); font-size: clamp(2rem, 1.3rem + 2.6vw, 3.3rem); font-weight: 800; line-height: 1.08; text-wrap: balance; }
.fd-portada h1::after { content: ""; display: block; width: 90px; height: 2px; margin-top: 1rem; background: linear-gradient(90deg, var(--oro), transparent); }
.fd-claves { display: grid; gap: 0.35rem; margin: 0 0 1.2rem; padding: 0; list-style: none; }
.fd-claves li { position: relative; padding: 0.2rem 0 0.2rem 1.6rem; }
.fd-claves li::before { content: ""; position: absolute; left: 0.2rem; top: 0.72em; width: 0.7rem; height: 1px; background: var(--oro); }
.fd-portada__ctas { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 1.4rem; }

/* ---------- franjas ---------- */

.fd-franja { padding: clamp(2.6rem, 6vw, 4.6rem) 0; background: var(--negro); }
.fd-franja--marmol {
  background:
    linear-gradient(115deg, transparent 0 46%, rgba(232, 214, 176, 0.05) 47%, transparent 49%),
    linear-gradient(160deg, transparent 0 70%, rgba(232, 214, 176, 0.04) 71%, transparent 73%),
    var(--carbon);
  border-block: 1px solid var(--veta);
}
.fd-franja__in { max-width: 980px; }
.fd-franja__cab { position: relative; margin-bottom: 1.6rem; padding-top: 0.6rem; }
.fd-franja__num { position: absolute; right: 0; top: -1.4rem; color: transparent; -webkit-text-stroke: 1px var(--veta-2); font-family: var(--serif); font-size: clamp(4rem, 3rem + 4vw, 7rem); font-weight: 800; line-height: 1; pointer-events: none; }
.fd-franja__eti { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--oro); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; }
.fd-franja__eti::before { content: ""; width: 28px; height: 1px; background: var(--oro); }
.fd-franja__cab h2 { position: relative; margin: 0.5rem 0 0; color: var(--blanco); font-family: var(--serif); font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.4rem); font-weight: 700; line-height: 1.15; text-wrap: balance; max-width: 760px; }
.fd-franja__cuerpo > :last-child { margin-bottom: 0; }

/* línea de hitos (subtemas) */
.fd-linea { position: relative; margin: 1.6rem 0; padding: 0 0 0 2rem; list-style: none; }
.fd-linea::before { content: ""; position: absolute; left: 6px; top: 0.6rem; bottom: 0.6rem; width: 1px; background: linear-gradient(180deg, var(--oro), var(--veta-2) 60%, transparent); }
.fd-hito { position: relative; padding: 0 0 1.8rem; }
.fd-hito:last-child { padding-bottom: 0; }
.fd-hito::before { content: ""; position: absolute; left: calc(-2rem + 1px); top: 0.55rem; width: 11px; height: 11px; border: 2px solid var(--oro); background: var(--negro); transform: rotate(45deg); }
.fd-franja--marmol .fd-hito::before { background: var(--carbon); }
.fd-hito h3 { margin: 0 0 0.6rem; color: var(--oro-claro); font-family: var(--serif); font-size: 1.32rem; font-weight: 700; line-height: 1.25; }
.fd-hito > :last-child { margin-bottom: 0; }

.fd-empuje { margin: 1.8rem 0 0; }

.fd-puntos { display: grid; gap: 0.45rem; margin: 0 0 1.1rem; padding: 0; list-style: none; }
.fd-puntos li { position: relative; padding-left: 1.5rem; line-height: 1.55; }
.fd-puntos li::before { content: ""; position: absolute; left: 0.25rem; top: 0.55em; width: 0.45rem; height: 0.45rem; background: var(--hielo); transform: rotate(45deg); }

.fd-orden { display: grid; gap: 0; margin: 0 0 1.1rem; padding: 0; list-style: none; counter-reset: fd-o; border-top: 1px solid var(--veta); }
.fd-orden li { position: relative; padding: 0.75rem 0.4rem 0.75rem 3rem; border-bottom: 1px solid var(--veta); counter-increment: fd-o; line-height: 1.5; }
.fd-orden li::before { content: counter(fd-o, decimal-leading-zero); position: absolute; left: 0.2rem; top: 0.72rem; color: var(--oro); font-family: var(--serif); font-size: 1.15rem; font-weight: 700; }

.fd-cuadro { margin: 1rem 0 1.2rem; overflow-x: auto; border: 1px solid var(--veta-2); background: var(--hondo); -webkit-overflow-scrolling: touch; }
.fd-cuadro table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.fd-cuadro--larga table { min-width: 560px; }
.fd-cuadro thead th { padding: 0.85rem 1rem; border-bottom: 1px solid var(--oro); color: var(--oro); font-size: 0.76rem; font-weight: 700; letter-spacing: 0.14em; text-align: left; text-transform: uppercase; }
.fd-cuadro tbody th,
.fd-cuadro tbody td,
.fd-cuadro tfoot th,
.fd-cuadro tfoot td { padding: 0.72rem 1rem; text-align: left; vertical-align: top; }
.fd-cuadro tbody tr + tr > * { border-top: 1px solid var(--veta); }
.fd-cuadro tbody th { color: var(--blanco); font-weight: 600; }
.fd-cuadro tbody tr:hover { background: rgba(220, 180, 105, 0.05); }
.fd-cuadro tfoot { background: linear-gradient(90deg, var(--oro-oscuro), var(--oro)); }
.fd-cuadro tfoot th,
.fd-cuadro tfoot td { color: var(--tinta); font-weight: 800; }

.fd-faq { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.8rem; align-items: start; }
.fd-faq__item { border: 1px solid var(--veta-2); background: var(--hondo); transition: border-color 0.2s ease; }
.fd-faq__item[open] { border-color: var(--oro); }
.fd-faq__item summary { display: flex; align-items: flex-start; gap: 0.8rem; min-height: 64px; padding: 1rem; list-style: none; cursor: pointer; }
.fd-faq__item summary::-webkit-details-marker { display: none; }
.fd-faq__item summary::after { content: "+"; flex-shrink: 0; margin-left: auto; color: var(--oro); font-size: 1.4rem; font-weight: 400; line-height: 1; transition: transform 0.2s ease; }
.fd-faq__item[open] summary::after { transform: rotate(45deg); }
.fd-faq__n { flex-shrink: 0; color: var(--oro); font-family: var(--serif); font-size: 1.05rem; font-weight: 700; }
.fd-faq__q { color: var(--blanco); font-family: var(--serif); font-size: 1.08rem; font-weight: 700; line-height: 1.35; }
.fd-faq__r { margin: 0; padding: 0 1rem 1.1rem; color: var(--texto); }

/* ---------- pie ---------- */

.fd-pie { background: var(--hondo); border-top: 1px solid var(--oro-oscuro); }
.fd-pie__rej { display: grid; grid-template-columns: 1fr 1.6fr 1fr; gap: 2rem; align-items: start; padding: 2.8rem 0 1.6rem; }
.fd-pie__nota { display: flex; align-items: center; gap: 0.6rem; margin: 1rem 0 0; color: var(--apagado); font-size: 0.9rem; }
.fd-mayor { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--oro); border-radius: 50%; color: var(--oro); font-size: 0.78rem; font-weight: 700; }
.fd-pie__lista { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.4rem; margin: 0; padding: 0; list-style: none; }
.fd-pie__lista a { display: inline-flex; align-items: center; min-height: 40px; color: var(--apagado); text-decoration: none; }
.fd-pie__lista a:hover { color: var(--oro-claro); }
.fd-pie__ctas { display: grid; gap: 0.8rem; justify-items: start; }
.fd-pie__copy { margin-top: 0; margin-bottom: 0; padding: 1rem 0 1.6rem; border-top: 1px solid var(--veta); color: var(--apagado); font-size: 0.86rem; }

.fd-arriba { position: fixed; right: 1rem; bottom: 1rem; z-index: 250; display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid var(--oro); background: var(--hondo); color: var(--oro); font-size: 1.15rem; text-decoration: none; opacity: 0; visibility: hidden; transition: opacity 0.2s ease, visibility 0.2s, background 0.2s ease; }
.fd-arriba:hover { background: var(--oro); color: var(--tinta); }
.fd-arriba.fd-arriba--ver { opacity: 1; visibility: visible; }

/* ---------- adaptación ---------- */

@media (max-width: 1100px) {
  .fd-menu { display: none; }
  .fd-conmutador { display: inline-flex; }
  .fd-cabecera__cta { margin-left: auto; }
}

@media (max-width: 860px) {
  .fd-portada { display: block; min-height: 0; }
  .fd-portada__foto { position: relative; }
  .fd-portada__foto img { height: auto; aspect-ratio: 1380 / 752; }
  .fd-portada__foto::after { background: linear-gradient(0deg, var(--negro), transparent 40%); }
  .fd-portada__capa { padding-top: 0.6rem; }
  .fd-faq { grid-template-columns: minmax(0, 1fr); }
  .fd-pie__rej { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  :root { --alto-cab: 62px; }
  body { font-size: 1.01rem; }
  .fd-marca__ec { display: none; }
  .fd-cabecera__cta { padding: 0.45rem 0.7rem; font-size: 0.72rem; letter-spacing: 0.03em; }
  .fd-conmutador__txt { display: none; }
  .fd-conmutador { padding: 0 0.7rem; }
  .fd-portada__ctas .fd-boton,
  .fd-empuje .fd-boton { width: 100%; }
  .fd-linea { padding-left: 1.5rem; }
  .fd-hito::before { left: calc(-1.5rem + 1px); }
  .fd-franja__num { font-size: 3.4rem; top: -0.8rem; }
  .fd-pie__lista { grid-template-columns: minmax(0, 1fr); }
}