/* ==========================================================================
   VuelaClaro — identidad visual «aviación / tarjeta de embarque»
   Tipografía Archivo (display) + Inter (texto) + IBM Plex Mono (códigos).
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=IBM+Plex+Mono:wght@500;600;700&family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #eef3f8;              /* cielo pálido */
  --bg-2: #e6edf5;
  --surface: #ffffff;
  --surface-2: #f2f6fa;
  --border: #d9e2ec;
  --ink: #0b2545;             /* azul marino profundo */
  --text: #29374d;
  --text-soft: #5d6b82;
  --brand: #1f6fe0;           /* azul aerolínea */
  --brand-strong: #1656b4;
  --brand-soft: #e3eeff;
  --amber: #ffb703;           /* ámbar señalética aeropuerto */
  --amber-ink: #7a5200;
  --accent: #0ca678;          /* verde "tienes derecho" */
  --accent-soft: #d9f3ea;
  --danger: #d64550;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(11,37,69,.06);
  --shadow: 0 2px 8px rgba(11,37,69,.07), 0 16px 40px -14px rgba(11,37,69,.18);
  --shadow-brand: 0 12px 30px -10px rgba(31,111,224,.45);
  --maxw: 1120px;
  --display: "Archivo", -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1120;
    --bg-2: #0d1526;
    --surface: #131d33;
    --surface-2: #1a2540;
    --border: #283a5c;
    --ink: #eef3fb;
    --text: #d7e0ef;
    --text-soft: #93a3bf;
    --brand: #5f9bff;
    --brand-strong: #86b3ff;
    --brand-soft: #14274a;
    --amber: #ffc233;
    --amber-ink: #ffd66e;
    --accent: #2ec99a;
    --accent-soft: #0d2c22;
    --shadow: 0 2px 8px rgba(0,0,0,.45), 0 18px 44px -16px rgba(0,0,0,.7);
    --shadow-brand: 0 14px 34px -12px rgba(95,155,255,.4);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1100px 520px at 80% -10%, color-mix(in srgb, var(--brand) 16%, transparent), transparent 58%),
    radial-gradient(860px 460px at 2% 0%, color-mix(in srgb, var(--amber) 14%, transparent), transparent 52%);
  background-attachment: fixed;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.03'/%3E%3C/svg%3E");
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Header ------------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 11px; font-family: var(--display); font-weight: 800; font-size: 1.2rem; color: var(--ink); letter-spacing: -.02em; }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 37px; height: 37px; border-radius: 11px; font-size: 0; flex: none;
  /* la imagen del avion va PRIMERO para pintarse encima; el gradiente,
     opaco, debe ir en la ultima capa o taparia el avion */
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M21.5 15.5c.9-.4 1.5-1.2 1.4-2-.1-.8-.9-1.4-1.9-1.3l-5.3.6-7.4-8.1c-.3-.3-.7-.5-1.1-.4l-1.3.3 4.4 8.8-5 .6-2-2.3c-.2-.3-.6-.4-1-.4l-1 .2 1.7 4.4c.2.5.7.8 1.2.7l17.3-1.1z'/%3E%3C/svg%3E") center 55% / 21px no-repeat,
    linear-gradient(135deg, var(--brand), var(--brand-strong));
  box-shadow: var(--shadow-brand);
}
.nav { display: flex; gap: 6px; font-size: .95rem; align-items: center; }
.nav a { color: var(--text-soft); font-weight: 600; padding: 8px 12px; border-radius: 9px; }
.nav a:hover { color: var(--ink); background: var(--surface-2); text-decoration: none; }
@media (max-width: 700px) { .nav { display: none; } }

/* Hero -------------------------------------------------------------------- */
.hero { padding: 62px 0 16px; text-align: center; }
.hero .kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: var(--amber-ink); background: color-mix(in srgb, var(--amber) 22%, var(--surface));
  padding: 7px 15px 7px 12px; border-radius: 999px; margin-bottom: 22px;
  border: 1px solid color-mix(in srgb, var(--amber) 50%, var(--border)); box-shadow: var(--shadow-sm);
}
.hero .kicker::before { content: "€"; font-weight: 800; }
.hero h1 {
  font-family: var(--display); font-weight: 800;
  font-size: clamp(2rem, 5.4vw, 3.5rem); line-height: 1.04; margin: 0 auto 18px;
  letter-spacing: -.03em; color: var(--ink); max-width: 17ch;
}
.hero h1 .amt { color: var(--brand); white-space: nowrap; }
.hero p { font-size: clamp(1.05rem, 2.2vw, 1.2rem); color: var(--text-soft); max-width: 640px; margin: 0 auto; }
/* Subrayado tipo rotulador con text-decoration nativo: a diferencia de una
   franja de fondo, sigue cada renglon por si mismo aunque la frase se parta,
   y queda siempre debajo del texto (no lo cruza). skip-ink:none lo hace
   continuo bajo las letras con rasgo descendente. */
.hero strong { color: var(--ink); font-weight: 700;
  text-decoration-line: underline;
  text-decoration-color: color-mix(in srgb, var(--amber) 62%, transparent);
  text-decoration-thickness: .16em;
  text-underline-offset: .12em;
  text-decoration-skip-ink: none;
}

/* Cards / layout ---------------------------------------------------------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 26px; }
.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin: 30px 0; align-items: start; }
@media (max-width: 900px) { .tool-grid { grid-template-columns: 1fr; } }

section { margin: 52px 0; }
h2 { font-family: var(--display); font-weight: 800; font-size: clamp(1.5rem, 3.2vw, 2.05rem); letter-spacing: -.025em; margin: 0 0 16px; color: var(--ink); }
h3 { font-family: var(--display); font-weight: 700; font-size: 1.2rem; margin: 28px 0 8px; color: var(--ink); letter-spacing: -.015em; }
.lead { color: var(--text-soft); font-size: 1.08rem; }

/* Form -------------------------------------------------------------------- */
.field { margin-bottom: 17px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 7px; color: var(--ink); }
.field .hint { font-weight: 500; color: var(--text-soft); font-size: .82rem; }
input[type="text"], select {
  width: 100%; padding: 12px 13px; font-size: 1rem; color: var(--ink); font-weight: 600;
  background: var(--surface); border: 1.5px solid var(--border); border-radius: 11px;
  font-family: var(--font); transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 18%, transparent); }
.airport-ok { font-family: var(--mono); font-size: .8rem; font-weight: 600; margin-top: 5px; color: var(--accent); min-height: 1.2em; }
.airport-ok.bad { color: var(--danger); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 460px) { .two-col { grid-template-columns: 1fr; } }

/* Boarding pass result ----------------------------------------------------- */
.bpass {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden; position: relative;
}
.bpass-top {
  background: linear-gradient(120deg, var(--ink), color-mix(in srgb, var(--ink) 55%, var(--brand)));
  color: #fff; padding: 16px 24px; display: flex; justify-content: space-between; align-items: center; gap: 10px;
}
.bpass-top .t { font-family: var(--mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; opacity: .85; }
.bpass-top .plane { font-size: 1.1rem; }
.bpass-route {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 10px;
  padding: 22px 24px 8px; text-align: center;
}
.bpass-route .iata { font-family: var(--mono); font-weight: 700; font-size: clamp(1.9rem, 6vw, 2.6rem); color: var(--ink); letter-spacing: .02em; line-height: 1; }
.bpass-route .city { font-size: .82rem; color: var(--text-soft); font-weight: 600; margin-top: 4px; min-height: 1.1em; }
.bpass-route .path { color: var(--text-soft); display: grid; place-items: center; }
.bpass-route .path .line { display: flex; align-items: center; gap: 6px; }
.bpass-route .path .dot { width: 7px; height: 7px; border-radius: 50%; border: 2px solid var(--brand); }
.bpass-route .path .dash { width: clamp(30px, 8vw, 70px); border-top: 2px dashed color-mix(in srgb, var(--brand) 55%, var(--border)); }
.bpass-route .path .km { font-family: var(--mono); font-size: .78rem; font-weight: 600; margin-top: 6px; min-height: 1.1em; }
/* perforación */
.bpass-cut { position: relative; margin: 14px 0 0; border-top: 2px dashed var(--border); }
.bpass-cut::before, .bpass-cut::after {
  content: ""; position: absolute; top: -13px; width: 26px; height: 26px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--border);
}
.bpass-cut::before { left: -14px; clip-path: inset(0 0 0 50%); }
.bpass-cut::after { right: -14px; clip-path: inset(0 50% 0 0); }
.bpass-result { padding: 20px 24px 22px; text-align: center; }
.bpass-result .label { font-family: var(--mono); font-size: .74rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--text-soft); }
.bpass-result .big {
  font-family: var(--display); font-weight: 900; letter-spacing: -.03em; line-height: 1.05;
  font-size: clamp(2.6rem, 9vw, 3.8rem); margin: 6px 0 4px; color: var(--ink); font-variant-numeric: tabular-nums;
}
.bpass-result .big.yes { color: var(--accent); }
.bpass-result .big.no { color: var(--text-soft); font-size: clamp(1.5rem, 5vw, 2rem); }
.bpass-result .sub { color: var(--text-soft); font-size: .95rem; }
.bpass-details { list-style: none; margin: 16px 0 0; padding: 14px 24px 20px; border-top: 1px solid var(--border); text-align: left; }
.bpass-details li { display: flex; justify-content: space-between; gap: 14px; padding: 7px 0; font-size: .92rem; }
.bpass-details .k { color: var(--text-soft); }
.bpass-details .v { font-weight: 700; color: var(--ink); text-align: right; }

.verdict { border-radius: 14px; padding: 15px 18px; font-weight: 600; margin: 16px 24px 20px; border: 1px solid var(--border); background: var(--surface-2); font-size: .95rem; text-align: left; }
.verdict.good { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.verdict.warn { background: color-mix(in srgb, var(--amber) 18%, var(--surface)); border-color: color-mix(in srgb, var(--amber) 55%, transparent); }
.verdict.bad  { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }

.note { background: var(--brand-soft); border: 1px solid color-mix(in srgb, var(--brand) 22%, transparent); border-radius: 14px; padding: 15px 17px; font-size: .93rem; margin: 18px 0; color: var(--text); }
.note strong { color: var(--brand-strong); }

/* Buttons ----------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--brand); color: #fff; font-weight: 700;
  padding: 13px 24px; border-radius: 12px; border: 0; cursor: pointer; font-size: 1rem;
  font-family: var(--font); box-shadow: var(--shadow-brand); transition: transform .12s, background .12s;
}
.btn:hover { background: var(--brand-strong); text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: transparent; color: var(--brand); border: 1.5px solid var(--border); box-shadow: none; }
.btn.ghost:hover { background: var(--surface-2); }

/* Steps ------------------------------------------------------------------- */
.steps { counter-reset: step; display: grid; gap: 14px; margin: 22px 0; }
.step { display: flex; gap: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 18px 20px; box-shadow: var(--shadow-sm); }
.step::before {
  counter-increment: step; content: counter(step);
  font-family: var(--mono); font-weight: 700; flex: none;
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand-strong); border: 1px solid color-mix(in srgb, var(--brand) 25%, transparent);
}
.step h3 { margin: 2px 0 4px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--text-soft); font-size: .94rem; }

/* Prose / FAQ / cards ------------------------------------------------------ */
.prose { max-width: 780px; }
.prose p, .prose li { color: var(--text); }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 2px 20px; margin-bottom: 12px; transition: border-color .15s; }
.faq details[open] { border-color: color-mix(in srgb, var(--brand) 40%, var(--border)); }
.faq summary { cursor: pointer; font-weight: 700; padding: 16px 0; list-style: none; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--brand); font-weight: 800; font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details[open] summary { border-bottom: 1px solid var(--border); }
.faq details p { padding: 14px 0; color: var(--text-soft); }

.grid-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; }
.card-link {
  display: block; background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 22px; box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
  transition: border-color .18s, transform .18s, box-shadow .18s;
}
.card-link::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--amber); transform: scaleY(0); transform-origin: top; transition: transform .2s; }
.card-link:hover { border-color: color-mix(in srgb, var(--brand) 45%, var(--border)); text-decoration: none; transform: translateY(-3px); box-shadow: var(--shadow); }
.card-link:hover::before { transform: scaleY(1); }
.card-link h3 { margin: 8px 0 6px; color: var(--ink); }
.card-link p { margin: 0; color: var(--text-soft); font-size: .93rem; }
.card-link .tag { font-size: .72rem; color: var(--brand-strong); font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }

/* Tables ------------------------------------------------------------------- */
.mg-table { width: 100%; border-collapse: collapse; font-size: .96rem; }
.mg-table th, .mg-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.mg-table thead th { color: var(--text-soft); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; }
.mg-table tbody tr:hover { background: var(--surface-2); }
.mg-table td:first-child { font-weight: 600; color: var(--ink); }
.mg-table td.eur { text-align: right; font-family: var(--mono); font-weight: 700; color: var(--brand-strong); white-space: nowrap; }
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); margin: 18px 0; }

/* Modelo de carta ----------------------------------------------------------- */
.carta {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 22px 26px; font-size: .93rem; line-height: 1.7; box-shadow: var(--shadow-sm);
  position: relative; margin: 20px 0;
}
.carta::before {
  content: "MODELO"; position: absolute; top: 14px; right: 16px;
  font-family: var(--mono); font-size: .68rem; font-weight: 700; letter-spacing: .12em;
  color: var(--amber-ink); background: color-mix(in srgb, var(--amber) 25%, transparent);
  padding: 3px 9px; border-radius: 6px;
}
.carta .blank { color: var(--brand-strong); font-weight: 700; }

/* Ad slots ------------------------------------------------------------------ */

/* Footer --------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 70px; padding: 40px 0; color: var(--text-soft); font-size: .9rem; background: color-mix(in srgb, var(--surface) 50%, transparent); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; }
.site-footer strong { color: var(--ink); font-family: var(--display); }
.site-footer a { color: var(--text-soft); }
.site-footer a:hover { color: var(--brand); }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.disclaimer { font-size: .82rem; color: var(--text-soft); max-width: 780px; }

/* Article --------------------------------------------------------------------- */
.article-head { padding: 40px 0 8px; max-width: 780px; }
.article-head .cat { font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; color: var(--brand-strong); }
.article-head h1 { font-family: var(--display); font-weight: 800; font-size: clamp(1.8rem, 4.2vw, 2.6rem); margin: 10px 0 12px; letter-spacing: -.03em; color: var(--ink); line-height: 1.07; }
.article-head .meta { color: var(--text-soft); font-size: .9rem; }
.article-body { max-width: 740px; font-size: 1.05rem; }
.article-body h2 { margin-top: 40px; }
.article-body ul, .article-body ol { padding-left: 24px; }
.article-body li { margin: 7px 0; }
.article-body blockquote { margin: 24px 0; padding: 16px 22px; border-left: 4px solid var(--brand); background: var(--surface-2); border-radius: 0 14px 14px 0; color: var(--text); }
.toc { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 20px 24px; margin: 24px 0; box-shadow: var(--shadow-sm); }
.toc strong { display: block; margin-bottom: 8px; font-family: var(--display); color: var(--ink); }
.toc a { display: block; padding: 4px 0; color: var(--text-soft); }
.toc a:hover { color: var(--brand); }

.skip-link { position: absolute; left: -999px; }
.skip-link:focus { left: 12px; top: 12px; background: var(--surface); padding: 8px 14px; border-radius: 8px; z-index: 100; }