:root { color-scheme: dark; --bg: #0a0d11; --card: #141a21; --ink: #e8edf2; --mut: #9aa7b4; --acc: #3b82f6; --on: #04101f; --line: #27303b; --ok: #34d399; --bad: #ff7b72; }
@media (prefers-color-scheme: light) { :root { color-scheme: light; --bg: #f4f6fb; --card: #ffffff; --ink: #10182b; --mut: #51596b; --acc: #1d4ed8; --on: #ffffff; --line: #d5dae6; --ok: #17663a; --bad: #b3261e; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, sans-serif; }
header { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.marca { font-weight: 700; font-size: 1.1rem; color: var(--acc); text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 4px 14px; }
nav a, footer a { color: var(--ink); text-decoration: none; padding: 4px 0; }
nav a.activo { color: var(--acc); border-bottom: 2px solid var(--acc); }
main { max-width: 760px; margin: 0 auto; padding: 16px 16px 48px; }
footer { text-align: center; padding: 16px; }
footer a { color: var(--mut); }
h1 { font-size: 1.5rem; margin: 8px 0 12px; } h2 { font-size: 1.15rem; margin: 20px 0 8px; }
input, select, button { font: inherit; }
input[type=search], select { width: 100%; padding: 10px 12px; background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 10px; }
.btn { padding: 9px 14px; border: 0; border-radius: 10px; background: var(--acc); color: var(--on); font-weight: 600; cursor: pointer; }
.btn.sec { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.on { background: var(--ok); color: #04130d; }
.fila { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; align-items: center; }
.chip { padding: 6px 12px; border-radius: 99px; background: var(--card); border: 1px solid var(--line); color: var(--ink); cursor: pointer; }
.chip.sel { background: var(--acc); color: var(--on); border-color: var(--acc); }
.tarjeta { display: block; padding: 12px 14px; margin: 8px 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px; color: inherit; text-decoration: none; }
.tarjeta .t { font-weight: 600; } .tarjeta .m, .mut { color: var(--mut); font-size: .9rem; }
.precio { font-size: 1.25rem; font-weight: 700; color: var(--acc); }
.baja { color: var(--ok); font-weight: 600; } .sube { color: var(--bad); font-weight: 600; }
.etq { display: inline-block; margin-left: 8px; padding: 1px 8px; border-radius: 99px; background: var(--ok); color: #04130d; font-size: .75rem; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; } th, td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; } th { color: var(--mut); font-weight: 600; }
#aviso { margin: 0; padding: 10px 16px; background: var(--acc); color: var(--on); text-align: center; font-weight: 600; }
.barra { height: 8px; border-radius: 4px; background: var(--acc); }
.beneficios li { margin: 6px 0; }

.qr { display: block; width: min(260px, 70vw); height: auto; margin: 12px 0; border-radius: 8px; background: #fff; }
.codigo { font: 700 1.3rem/1.4 ui-monospace, monospace; letter-spacing: .06em; margin: 0 0 8px; }
a.btn { display: inline-block; text-decoration: none; }

:root { --bg: #04060c; --card: #0b1120; --ink: #eaf1ff; --mut: #8c9cc2; --acc: #3d7bff; --acc2: #19d3ff; --line: #1b2745; --ok: #2fe39a; --bad: #ff5d73; --on: #ffffff; --grad: linear-gradient(135deg, #2f66ff, #3d9bff 55%, #19d3ff); }
@media (prefers-color-scheme: light) { :root { --bg: #eef2fb; --card: #ffffff; --ink: #0c1530; --mut: #55648c; --acc: #2457ff; --acc2: #00a7d6; --line: #d6dff2; --ok: #0f8a5a; --bad: #c8243c; } }
html { background: var(--bg); } body { background: transparent; }
body::before { content: ""; position: fixed; inset: -10%; z-index: -1; pointer-events: none; background: radial-gradient(60% 40% at 15% 6%, rgba(47, 102, 255, .26), transparent 70%), radial-gradient(50% 34% at 92% 20%, rgba(124, 92, 255, .15), transparent 70%), radial-gradient(60% 40% at 70% 98%, rgba(25, 211, 255, .13), transparent 70%); animation: sx-deriva 22s ease-in-out infinite alternate; }
header { background: color-mix(in srgb, var(--card) 70%, transparent); -webkit-backdrop-filter: blur(16px) saturate(1.3); backdrop-filter: blur(16px) saturate(1.3); }
.marca { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 800; letter-spacing: .02em; }
nav a { transition: color .2s; } nav a.activo { color: var(--acc2); border-bottom-color: var(--acc2); }
h1 { font-weight: 780; letter-spacing: -.02em; }
.btn, a.btn { background: var(--grad); color: #fff; border-radius: 12px; box-shadow: 0 6px 18px rgba(47, 102, 255, .35), inset 0 1px 0 rgba(255, 255, 255, .26); transition: transform .2s cubic-bezier(.34, 1.56, .64, 1), filter .2s; }
.btn:hover { filter: brightness(1.1); transform: translateY(-2px); } .btn:active { transform: scale(.96); }
.btn.sec { background: transparent; color: var(--acc2); border: 1px solid color-mix(in srgb, var(--acc) 55%, transparent); box-shadow: none; }
.btn.on { background: var(--ok); color: #04130d; box-shadow: none; }
.chip { transition: transform .2s cubic-bezier(.34, 1.56, .64, 1), border-color .2s; } .chip:hover { border-color: var(--acc); transform: translateY(-1px); }
.chip.sel { background: var(--grad); border-color: transparent; color: #fff; }
input[type=search], select { border-radius: 12px; transition: border-color .2s, box-shadow .25s; } input:focus-visible, select:focus-visible { outline: none; border-color: var(--acc); box-shadow: 0 0 0 4px color-mix(in srgb, var(--acc) 24%, transparent); }
.tarjeta { background: color-mix(in srgb, var(--card) 72%, transparent); border-color: color-mix(in srgb, var(--acc) 22%, var(--line)); border-radius: 16px; box-shadow: 0 14px 40px rgba(0, 0, 0, .25); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); transition: transform .25s cubic-bezier(.34, 1.56, .64, 1), border-color .2s, box-shadow .25s; animation: sx-sube .5s cubic-bezier(.34, 1.56, .64, 1) both; }
.tarjeta:hover { transform: translateY(-3px); border-color: var(--acc); box-shadow: 0 18px 46px rgba(47, 102, 255, .2); }
.precio { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.barra { background: var(--grad); box-shadow: 0 0 12px rgba(61, 123, 255, .55); }
#aviso { background: var(--grad); color: #fff; }
th { text-transform: uppercase; font-size: .72rem; letter-spacing: .1em; }
main > * { animation: sx-sube .5s cubic-bezier(.34, 1.56, .64, 1) both; }
@keyframes sx-deriva { from { transform: translate3d(-3%, 2%, 0) scale(1); } to { transform: translate3d(3%, -2%, 0) scale(1.1); } }
@keyframes sx-sube { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }
input[type=text], input[type=password] { width: 100%; padding: 10px 12px; margin: 4px 0; background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 12px; font: inherit; }