/* ==========================================================================
   NautiSafe — sitio público
   Paleta: navy #0D1B2A · blue #1565C0 · cyan #00B4D8 · amber #F5A623
   ========================================================================== */

:root {
  --navy: #0D1B2A;
  --navy-soft: #1B2A3F;
  --blue: #1565C0;
  --blue-light: #4FC3F7;
  --cyan: #00B4D8;
  --amber: #F5A623;
  --green: #2E7D32;
  --red: #C62828;
  --bg: #F4F8FB;
  --surface: #FFFFFF;
  --text: #0D1B2A;
  --text-muted: #5C6B7A;
  --border: #E2E8EE;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(13, 27, 42, .06);
  --shadow-md: 0 8px 28px rgba(13, 27, 42, .10);
  --shadow-lg: 0 18px 50px rgba(13, 27, 42, .18);
  --container: 1180px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--navy); line-height: 1.18; margin: 0 0 .4em; font-weight: 800; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 4.5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; color: var(--text-muted); }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ─── NAV ────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s;
}
.nav.nav--scrolled {
  background: rgba(255, 255, 255, .9);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: rgba(13, 27, 42, .08);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 16px;
}
.nav__brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: #fff; transition: color .3s; }
.nav__brand img { height: 36px; width: auto; filter: brightness(0) invert(1); transition: filter .3s; }
.nav__brand span { font-size: 1.05rem; letter-spacing: .02em; }
.nav.nav--scrolled .nav__brand { color: var(--navy); }
.nav.nav--scrolled .nav__brand img { filter: none; }

.nav__links { display: flex; gap: 26px; align-items: center; }
.nav__links a { color: rgba(255, 255, 255, .92); font-weight: 600; font-size: .95rem; transition: color .25s; }
.nav__links a:hover { color: var(--blue-light); text-decoration: none; }
.nav.nav--scrolled .nav__links a { color: var(--navy); opacity: .85; }
.nav.nav--scrolled .nav__links a:hover { opacity: 1; color: var(--blue); }

.nav__cta {
  background: #fff; color: var(--navy) !important; padding: 10px 18px;
  border-radius: 999px; font-weight: 700; font-size: .9rem;
  transition: transform .2s var(--ease), background .2s, color .2s;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .15);
}
.nav__cta:hover { transform: translateY(-1px); background: var(--blue); color: #fff !important; text-decoration: none; }
.nav.nav--scrolled .nav__cta { background: var(--navy); color: #fff !important; box-shadow: none; }
.nav.nav--scrolled .nav__cta:hover { background: var(--blue); }

.nav__toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; color: #fff; transition: color .3s; }
.nav.nav--scrolled .nav__toggle { color: var(--navy); }
.nav__toggle svg { display: block; }

@media (max-width: 880px) {
  .nav__links {
    position: fixed; inset: 0;
    background: rgba(13, 27, 42, .97);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 32px;
    gap: 28px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform .35s var(--ease), opacity .25s var(--ease);
    border: 0;
  }
  .nav__links.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__links a { color: #fff; font-size: 1.35rem; opacity: 1; }
  .nav__links a:hover { color: var(--blue-light); }
  .nav__cta {
    background: #fff !important; color: var(--navy) !important;
    padding: 14px 36px; font-size: 1rem;
    box-shadow: 0 8px 26px rgba(0, 0, 0, .25);
  }
  .nav__cta:hover { background: var(--blue) !important; color: #fff !important; }
  .nav__toggle { display: inline-flex; z-index: 60; position: relative; }
  /* Cuando el menú está abierto, animamos el icono al modo "X" usando opacidad */
  .nav__links.is-open ~ * .nav__toggle, body:has(.nav__links.is-open) .nav__toggle { color: #fff; }
}

/* ─── HERO ───────────────────────────────────────────────────────────────── */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-soft) 60%, #133258 100%);
  color: #fff;
  padding: 130px 0 200px;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 40% at 80% 0%, rgba(0, 180, 216, .25), transparent 60%),
    radial-gradient(50% 35% at 10% 20%, rgba(79, 195, 247, .20), transparent 60%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 2; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14);
  padding: 6px 14px; border-radius: 999px; font-size: .82rem; letter-spacing: .04em;
  text-transform: uppercase; color: #B5DCFF; font-weight: 600;
}
.hero h1 { color: #fff; max-width: 18ch; margin-top: 22px; }
.hero__lead { font-size: clamp(1rem, 1.4vw, 1.18rem); color: #C7D7E4; max-width: 60ch; }
.hero__cta { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px; border-radius: 999px;
  font-weight: 700; font-size: .98rem; letter-spacing: .01em;
  border: 0; cursor: pointer; transition: transform .2s var(--ease), box-shadow .2s, background .2s;
}
.btn--primary { background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%); color: #fff; box-shadow: 0 10px 28px rgba(21, 101, 192, .35); }
.btn--primary:hover { transform: translateY(-2px); text-decoration: none; }
.btn--ghost { background: rgba(255, 255, 255, .1); color: #fff; border: 1px solid rgba(255, 255, 255, .25); }
.btn--ghost:hover { background: rgba(255, 255, 255, .18); text-decoration: none; }
.btn--solid { background: var(--navy); color: #fff; }
.btn--solid:hover { background: var(--blue); text-decoration: none; }
.btn--danger { background: var(--red); color: #fff; }
.btn--danger:hover { background: #a01f1f; text-decoration: none; }

.hero__pills { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 36px; }
.pill {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .15);
  padding: 8px 14px; border-radius: 999px; font-size: .85rem; color: #DCEAF7;
}

/* Olas SVG al pie del hero */
.hero__waves { position: absolute; left: 0; right: 0; bottom: -1px; line-height: 0; z-index: 1; }
.hero__waves svg { width: 100%; height: 140px; display: block; }
.hero__waves .wave1 { animation: drift 18s linear infinite; }
.hero__waves .wave2 { animation: drift2 24s linear infinite; }
@keyframes drift { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes drift2 { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ─── SECCIONES ─────────────────────────────────────────────────────────── */
.section { padding: 90px 0; }
.section__head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section__head .eyebrow { color: var(--blue); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: .82rem; }
.section__head h2 { margin-top: 12px; }
.section__head p { font-size: 1.05rem; }

/* ─── FEATURES ──────────────────────────────────────────────────────────── */
.features {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.feature {
  background: var(--surface); border-radius: var(--radius); padding: 28px 26px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  transition: transform .25s var(--ease), box-shadow .25s, border-color .25s;
}
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(21, 101, 192, .25); }
.feature__icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center; margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(21, 101, 192, .12), rgba(0, 180, 216, .12));
  color: var(--blue);
}
.feature__icon svg { width: 26px; height: 26px; }
.feature h3 { margin-bottom: 8px; }
.feature p { margin: 0; color: var(--text-muted); font-size: .96rem; }

/* ─── STEPS ─────────────────────────────────────────────────────────────── */
.steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px;
}
.step {
  position: relative; background: #fff; border: 1px solid var(--border);
  padding: 30px 26px 26px; border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.step__num {
  position: absolute; top: -18px; left: 26px;
  background: var(--navy); color: #fff;
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800;
  box-shadow: 0 6px 14px rgba(13, 27, 42, .25);
}
.step h3 { margin: 14px 0 6px; }

/* ─── PARA QUIÉN ────────────────────────────────────────────────────────── */
.audiences { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; }
.audience {
  border-radius: var(--radius); padding: 30px 26px; color: #fff;
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  box-shadow: var(--shadow-md); position: relative; overflow: hidden;
}
.audience--alt { background: linear-gradient(135deg, #0E3B5C 0%, var(--cyan) 100%); }
.audience--green { background: linear-gradient(135deg, #134E1F 0%, var(--green) 100%); }
.audience h3 { color: #fff; }
.audience p { color: rgba(255, 255, 255, .85); }
.audience ul { padding-left: 20px; margin: 14px 0 0; }
.audience li { margin: 6px 0; color: rgba(255, 255, 255, .92); }
.audience::after {
  content: ''; position: absolute; right: -40px; bottom: -40px; width: 180px; height: 180px;
  background: rgba(255, 255, 255, .08); border-radius: 50%; pointer-events: none;
}

/* ─── CTA banner ────────────────────────────────────────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  color: #fff; border-radius: var(--radius-lg);
  padding: 52px 40px; text-align: center;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 240px; height: 240px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(255, 255, 255, .18), transparent);
}
.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255, 255, 255, .9); max-width: 60ch; margin: 12px auto 26px; }

/* ─── FOOTER ────────────────────────────────────────────────────────────── */
.footer {
  background: #061220; color: #B5C3D2; padding: 60px 0 30px;
}
.footer__grid {
  display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 32px;
}
.footer__brand img { height: 38px; }
.footer__brand p { margin-top: 14px; color: #8A9AAB; max-width: 36ch; font-size: .95rem; }
.footer h4 { color: #fff; font-size: .92rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin: 8px 0; }
.footer a { color: #B5C3D2; font-size: .94rem; }
.footer a:hover { color: #fff; }
.footer__bottom {
  margin-top: 42px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px;
  font-size: .85rem; color: #6E7E90;
}
@media (max-width: 720px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
}

/* ─── RESPONSIVE TWEAKS ─────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .container { padding: 0 18px; }
  .hero { padding: 110px 0 140px; }
  .hero__eyebrow { font-size: .72rem; padding: 5px 12px; letter-spacing: .06em; }
  .hero h1 { margin-top: 18px; line-height: 1.12; }
  .hero__lead { font-size: 1rem; line-height: 1.5; }
  .hero__cta { gap: 10px; margin-top: 24px; }
  .hero__cta .btn { padding: 13px 20px; font-size: .94rem; flex: 1 1 auto; justify-content: center; }
  .hero__pills { margin-top: 26px; gap: 8px; }
  .pill { font-size: .76rem; padding: 6px 12px; }
  .hero__waves svg { height: 90px; }

  .section { padding: 64px 0; }
  .section__head { margin-bottom: 36px; }
  .section__head h2 { line-height: 1.2; }

  .feature { padding: 22px 20px; }
  .step { padding: 28px 22px 22px; }
  .audience { padding: 26px 22px; }

  .cta-banner { padding: 36px 22px; border-radius: var(--radius); }
  .cta-banner h2 { font-size: 1.5rem; }

  .page-hero { padding: 100px 0 96px; }
  .page-hero h1 { font-size: 1.9rem; }
  .content { padding: 32px 0 56px; }
  .content__inner { padding: 28px 22px; margin-top: -76px; border-radius: var(--radius); }
  .content h2 { font-size: 1.35rem; margin-top: 22px; }
  .content h3 { font-size: 1.05rem; }

  .footer { padding: 48px 0 24px; }
  .footer__brand img { height: 32px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 6px; }

  .btn { padding: 13px 20px; font-size: .94rem; }
}

@media (max-width: 420px) {
  h1 { font-size: 2rem; }
  .nav__brand span { display: none; } /* Solo logo, deja más espacio al hamburger */
  .nav__inner { height: 60px; }
  .nav__links { inset: 0; }
}

/* ─── REVEAL ANIM ───────────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ─── PÁGINAS INTERIORES (eliminar cuenta, terminos, privacidad) ────────── */
.page-hero {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-soft) 100%);
  color: #fff; padding: 120px 0 56px;
}
.page-hero h1 { color: #fff; }
.page-hero .crumbs { font-size: .85rem; color: rgba(255, 255, 255, .65); margin-bottom: 14px; }
.page-hero .crumbs a { color: rgba(255, 255, 255, .8); }
.content {
  background: #fff; padding: 60px 0;
}
.content__inner {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm);
  border: 1px solid var(--border); padding: 44px 40px; max-width: 860px; margin: -120px auto 0;
  position: relative; z-index: 2;
}
.content h2, .content h3 { color: var(--navy); }
.content h2 { margin-top: 28px; }
.content ol, .content ul { padding-left: 22px; }
.content ol li, .content ul li { margin: 10px 0; }
.callout {
  border-left: 4px solid var(--amber);
  background: #FFF8E1;
  padding: 16px 18px; border-radius: 8px; margin: 22px 0;
  color: #5D4037;
}
.callout--danger { border-left-color: var(--red); background: #FFEBEE; color: #642a2a; }
.callout--info { border-left-color: var(--blue); background: #E3F2FD; color: #0D47A1; }

/* Tabla de contenidos lateral en eliminar-cuenta */
.guide {
  display: grid; grid-template-columns: 240px 1fr; gap: 38px; align-items: start;
}
.guide__toc {
  position: sticky; top: 92px;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; background: #fff;
}
.guide__toc h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); margin: 0 0 8px; }
.guide__toc ol { padding-left: 18px; margin: 0; }
.guide__toc li { margin: 6px 0; }
.guide__toc a { color: var(--navy); text-decoration: none; }
.guide__toc a:hover { color: var(--blue); }
@media (max-width: 880px) { .guide { grid-template-columns: 1fr; } .guide__toc { position: static; } }

/* Sección Instituciones — imagen + texto */
.instituciones-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 44px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
.instituciones-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--navy-soft);
  position: relative;
}
.instituciones-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.instituciones-figure figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 16px 20px;
  font-size: .92rem;
  color: #fff;
  background: linear-gradient(180deg, rgba(13,27,42,0) 0%, rgba(13,27,42,.85) 100%);
}
.instituciones-body { min-width: 0; }
@media (max-width: 880px) {
  .instituciones-grid { grid-template-columns: 1fr; gap: 24px; }
  .instituciones-figure figcaption { font-size: .86rem; padding: 14px 16px; }
}