/* ==========================================================================
   CSI AV — Design system
   Navy + señal naranja. Big Shoulders Display (rotulación) + IBM Plex Sans/Mono.
   ========================================================================== */

@font-face{
  font-family:'Big Shoulders';
  font-style:normal;
  font-weight:700 900;
  font-display:swap;
  src:url('../fonts/big-shoulders-display.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+2018-201F,U+2013-2014;
}
@font-face{
  font-family:'Plex Sans';
  font-style:normal;
  font-weight:400 700;
  font-display:swap;
  src:url('../fonts/ibm-plex-sans.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+2018-201F,U+2013-2014;
}
@font-face{
  font-family:'Plex Mono';
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url('../fonts/ibm-plex-mono-500.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+2018-201F,U+2013-2014;
}
@font-face{
  font-family:'Plex Mono';
  font-style:normal;
  font-weight:600;
  font-display:swap;
  src:url('../fonts/ibm-plex-mono-600.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+2018-201F,U+2013-2014;
}

:root{
  --paper:#FAF8F5;
  --surface:#FFFFFF;
  --surface-2:#E9E1D6;
  --ink:#211F1C;
  --ink-soft:#5C574F;
  --ink-faint:#948A7E;
  --line:rgba(32,30,27,.14);
  --navy-900:#0D0D3D;
  --navy-800:#14145C;
  --navy-700:#191970;
  --accent:#191970;
  --accent-strong:#12124F;
  --accent-ink:#191970;
  --accent-tint:#E3E5F1;
  --mock-ink:#F5F2EC;
  --mock-ink-soft:#AEB8DA;
  --mock-line:rgba(255,255,255,.14);
  --gold:#D8CABE;
  --radius-lg:16px;
  --radius-md:12px;
  --container:1180px;
  --header-h:76px;
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-in-out:cubic-bezier(.77,0,.175,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Plex Sans',ui-sans-serif,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3,h4{margin:0;text-wrap:balance;font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;}

.container{max-width:var(--container);margin:0 auto;padding:0 clamp(1.25rem,4vw,2.5rem);}

.eyebrow{
  font-family:'Plex Mono',ui-monospace,monospace;
  font-weight:600;
  font-size:.74rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-ink);
  display:inline-block;
}
.display{font-family:'Big Shoulders',ui-sans-serif,sans-serif;text-transform:uppercase;letter-spacing:.005em;}

.h1{font-size:clamp(2.4rem,5vw,4.2rem);line-height:.98;}
.h2{font-size:clamp(1.9rem,3.6vw,2.8rem);line-height:1.02;}
.h3{font-size:clamp(1.3rem,2.2vw,1.7rem);line-height:1.06;}

.lede{color:var(--ink-soft);font-size:1.08rem;max-width:56ch;}

/* ---------- buttons ---------- */
.btn{
  font-family:'Plex Sans',sans-serif;font-weight:600;font-size:.95rem;
  padding:.85rem 1.5rem;border-radius:999px;text-decoration:none;
  display:inline-flex;align-items:center;gap:.5rem;border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,background .15s ease,border-color .15s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-strong);color:#fff;}
.btn-ghost-dark{border-color:var(--mock-line);color:var(--mock-ink);}
.btn-ghost-dark:hover{background:rgba(255,255,255,.08);}
.btn-outline{border-color:var(--line);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--surface-2);}
.btn:focus-visible{outline:2px solid var(--accent-strong);outline-offset:2px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,248,245,.98);
  border-bottom:1px solid var(--line);
}
.site-header .bar{
  height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink);flex-shrink:0;}
.brand img{width:34px;height:34px;transition:transform .55s cubic-bezier(.34,1.56,.64,1);}
.brand:hover img{transform:scale(1.25) rotate(360deg);}
@media (prefers-reduced-motion: reduce){.brand:hover img{transform:none;}}
.brand .wordmark{font-family:'Big Shoulders',sans-serif;font-weight:800;font-size:1.35rem;letter-spacing:.01em;text-transform:uppercase;}

.main-nav{display:flex;align-items:center;gap:2.1rem;}
.main-nav ul{display:flex;gap:1.8rem;}
.main-nav a{
  font-size:.94rem;font-weight:600;text-decoration:none;color:var(--ink-soft);
  position:relative;padding:.3rem 0;transition:color .15s ease;
}
.main-nav a:hover,.main-nav a.active{color:var(--ink);}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent-strong);border-radius:2px;}

.nav-actions{display:flex;align-items:center;gap:.9rem;}
.nav-toggle{display:none;background:none;border:none;padding:.4rem;cursor:pointer;color:var(--ink);}
.nav-toggle svg{width:26px;height:26px;}

@media (max-width:940px){
  .main-nav{
    position:fixed;inset:var(--header-h) 0 0 0;background:var(--paper);
    flex-direction:column;align-items:stretch;padding:1.5rem clamp(1.25rem,6vw,2.5rem);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .18s var(--ease-out),transform .18s var(--ease-out);
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .main-nav ul{flex-direction:column;gap:0;border-top:1px solid var(--line);}
  .main-nav ul li{border-bottom:1px solid var(--line);}
  .main-nav ul a{display:block;padding:1rem 0;}
  .main-nav .nav-cta{margin-top:1.25rem;align-self:flex-start;}
  .nav-toggle{display:inline-flex;}
}

/* ---------- hero ---------- */
.hero{
  background:radial-gradient(1200px 480px at 12% -10%,var(--navy-700),var(--navy-900) 62%);
  color:var(--mock-ink);position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.45;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1.5px,transparent 1.5px);
  background-size:22px 22px;
  mask-image:radial-gradient(760px 420px at 78% 30%,black,transparent 72%);
}
.hero .container{position:relative;z-index:2;padding-top:clamp(3.5rem,8vw,6.5rem);padding-bottom:clamp(3.5rem,8vw,6.5rem);}
.hero h1{max-width:16ch;}
.hero p.lede{color:var(--mock-ink-soft);margin-top:1.1rem;max-width:52ch;}
.hero .ctas{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:1.9rem;}

.hero.has-video::before{display:none;}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.hero-scrim{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(100deg, rgba(11,23,48,.94) 0%, rgba(11,23,48,.72) 42%, rgba(11,23,48,.38) 75%),
    linear-gradient(0deg, rgba(11,23,48,.55), transparent 45%);
}

.page-hero{
  background:radial-gradient(1000px 420px at 88% -20%,var(--navy-700),var(--navy-900) 60%);
  color:var(--mock-ink);
  position:relative;overflow:hidden;
}
.page-hero .container{position:relative;z-index:1;padding-top:clamp(2.75rem,6vw,4.5rem);padding-bottom:clamp(2.5rem,5vw,3.5rem);}
.page-hero p.lede{color:var(--mock-ink-soft);margin-top:.9rem;}
.page-hero.has-photo{background-size:cover;background-position:center;}
.page-hero.has-photo::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(100deg, rgba(11,23,48,.92) 0%, rgba(11,23,48,.78) 50%, rgba(11,23,48,.5) 100%);
}

/* ---------- sector full-bleed photo blocks ---------- */
.sector-photo{position:relative;overflow:hidden;background-size:cover;background-position:center;color:var(--mock-ink);padding:clamp(4rem,10vw,7.5rem) 0;}
.sector-photo::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(100deg, rgba(11,23,48,.94) 0%, rgba(11,23,48,.8) 40%, rgba(11,23,48,.42) 78%);
}
.sector-photo.has-video::before{display:none;}
.sector-photo .container{position:relative;z-index:2;max-width:640px;}
.sector-photo .eyebrow{color:var(--gold);}
.sector-photo p.lede{color:var(--mock-ink-soft);}
.sector-photo .cta-link{color:var(--gold);}
.sector-photo .cta-link:hover{text-decoration:underline;}
.sector-meta{margin-top:1.6rem;font-family:'Plex Mono',monospace;font-size:.8rem;letter-spacing:.03em;color:var(--mock-ink-soft);}
.sector-meta strong{color:var(--mock-ink);font-weight:600;}

.sector-photo.has-video .sector-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.sector-photo.has-video .sector-scrim{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg, rgba(11,23,48,.94) 0%, rgba(11,23,48,.8) 40%, rgba(11,23,48,.42) 78%);
}

/* ---------- inline video showcase ---------- */
.video-frame{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px rgba(20,33,61,.18);}
.video-frame video{width:100%;display:block;}

/* ---------- sections ---------- */
section{padding:clamp(3rem,6vw,5.5rem) 0;}
section.tight{padding:clamp(2rem,4vw,3.25rem) 0;}
.section-head{max-width:64ch;margin-bottom:2.25rem;}
.section-head .eyebrow{margin-bottom:.6rem;}
.section-head p{margin-top:.8rem;}

/* ---------- scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
.reveal-stagger>*{opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease-out),transform .5s var(--ease-out);}
.reveal-stagger.is-visible>*{opacity:1;transform:translateY(0);}
.reveal-stagger.is-visible>*:nth-child(1){transition-delay:.03s;}
.reveal-stagger.is-visible>*:nth-child(2){transition-delay:.08s;}
.reveal-stagger.is-visible>*:nth-child(3){transition-delay:.13s;}
.reveal-stagger.is-visible>*:nth-child(4){transition-delay:.18s;}
.reveal-stagger.is-visible>*:nth-child(5){transition-delay:.23s;}
.reveal-stagger.is-visible>*:nth-child(6){transition-delay:.28s;}
.reveal-stagger.is-visible>*:nth-child(7){transition-delay:.33s;}
.reveal-stagger.is-visible>*:nth-child(8){transition-delay:.38s;}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,1fr);}}
.stat{background:var(--surface);padding:1.5rem 1.2rem;}
.stat .num{font-family:'Plex Mono',monospace;font-variant-numeric:tabular-nums;font-weight:600;font-size:clamp(1.6rem,3vw,2.1rem);color:var(--accent-strong);}
.stat .lbl{font-size:.86rem;color:var(--ink-soft);margin-top:.3rem;}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:1.25rem;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:920px){.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:820px){.grid-3,.grid-2{grid-template-columns:1fr;}}
@media (max-width:600px){.grid-4{grid-template-columns:1fr;}}

.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:1.6rem 1.6rem;display:flex;flex-direction:column;
  transition:transform .2s var(--ease-out),box-shadow .2s var(--ease-out),border-color .2s var(--ease-out);
}
@media (hover:hover) and (pointer:fine){
  .card:has(.cta-link):hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(20,33,61,.09);border-color:var(--accent);}
}
.card .tag{font-family:'Plex Mono',monospace;font-size:.72rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.08em;}
.card h3,.card h4{margin-top:.55rem;}
.card p.value{margin-top:.55rem;font-weight:800;}
.card .tagline{color:var(--ink-soft);font-size:.94rem;margin-top:.45rem;}
.card ul.checks{margin-top:1.1rem;display:flex;flex-direction:column;gap:.45rem;}
.card ul.checks li{font-size:.9rem;padding-left:1.35rem;position:relative;color:var(--ink);}
.card ul.checks li::before{content:"✓";position:absolute;left:0;color:var(--accent-strong);font-weight:700;}
.cta-link{display:inline-block;margin-top:1.25rem;font-family:'Plex Mono',monospace;font-size:.8rem;color:var(--accent-ink);text-decoration:none;font-weight:600;}
.cta-link:hover{text-decoration:underline;}

.card.photo-card{
  position:relative;overflow:hidden;border-color:transparent;min-height:220px;justify-content:flex-end;
  background-size:cover;background-position:center;color:var(--mock-ink);
}
.card.photo-card::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(0deg, rgba(11,23,48,.92) 0%, rgba(11,23,48,.35) 65%, rgba(11,23,48,.1) 100%);
}
.card.photo-card>*{position:relative;z-index:1;}
.card.photo-card .tag{color:var(--gold);}
.card.photo-card .tagline{color:var(--mock-ink-soft);}
.cta-link::after{content:" →";}

.pillar-icon{width:44px;height:44px;border-radius:10px;background:var(--accent-tint);display:flex;align-items:center;justify-content:center;color:var(--accent-ink);flex-shrink:0;}
.pillar-icon svg{width:22px;height:22px;}

/* ---------- client strip ---------- */
.client-strip{display:flex;flex-wrap:wrap;gap:.85rem;align-items:center;}
.client-chip{
  font-family:'Big Shoulders',sans-serif;font-weight:700;letter-spacing:.02em;text-transform:uppercase;
  font-size:1.05rem;color:var(--ink-soft);border:1px solid var(--line);border-radius:999px;padding:.6rem 1.3rem;
  background:var(--surface);
}

/* ---------- CTA band ---------- */
.cta-band{background:var(--navy-900);color:var(--mock-ink);border-radius:var(--radius-lg);padding:clamp(2rem,5vw,3.25rem);text-align:center;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.35;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.14) 1.5px,transparent 1.5px);background-size:20px 20px;mask-image:radial-gradient(560px 260px at 50% 0%,black,transparent 75%);}
.cta-band h2{position:relative;max-width:22ch;margin:0 auto;}
.cta-band p{position:relative;color:var(--mock-ink-soft);margin:.9rem auto 0;max-width:44ch;}
.cta-band .ctas{position:relative;display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap;margin-top:1.7rem;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item button{
  width:100%;text-align:left;background:none;border:none;padding:1.15rem 0;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;cursor:pointer;color:var(--ink);
}
.faq-item button .q{font-weight:700;font-size:1rem;}
.faq-item button .icon{flex-shrink:0;width:20px;height:20px;position:relative;}
.faq-item button .icon::before,.faq-item button .icon::after{content:"";position:absolute;background:var(--ink-soft);border-radius:2px;}
.faq-item button .icon::before{left:2px;right:2px;top:9px;height:2px;}
.faq-item button .icon::after{top:2px;bottom:2px;left:9px;width:2px;transition:transform .18s var(--ease-in-out);}
.faq-item[data-open="true"] button .icon::after{transform:scaleY(0);}
.faq-answer{display:grid;grid-template-rows:0fr;overflow:hidden;transition:grid-template-rows .28s var(--ease-in-out);}
.faq-answer>p{overflow:hidden;min-height:0;padding:0 0 1.15rem;color:var(--ink-soft);font-size:.95rem;max-width:64ch;}
.faq-item[data-open="true"] .faq-answer{grid-template-rows:1fr;}
.faq-item:focus-within button{outline:none;}
.faq-item button:focus-visible{outline:2px solid var(--accent-strong);outline-offset:2px;border-radius:6px;}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-900);color:var(--mock-ink-soft);margin-top:4rem;}
.site-footer .container{padding:clamp(2.5rem,5vw,3.5rem) clamp(1.25rem,4vw,2.5rem) 1.75rem;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:2.5rem;}
@media (max-width:820px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid h5{font-family:'Plex Mono',monospace;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mock-ink);margin-bottom:1rem;font-weight:600;}
.footer-grid ul{display:flex;flex-direction:column;gap:.65rem;}
.footer-grid a{color:var(--mock-ink-soft);text-decoration:none;font-size:.92rem;}
.footer-grid a:hover{color:var(--mock-ink);}
.footer-brand .brand{color:var(--mock-ink);}
.footer-brand p{margin-top:1rem;font-size:.9rem;max-width:32ch;color:var(--mock-ink-soft);}
.social-row{display:flex;gap:.6rem;margin-top:1.2rem;}
.social-row a{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;
  border:1px solid var(--mock-line);color:var(--mock-ink);text-decoration:none;transition:background .15s ease;
}
.social-row a:hover{background:rgba(255,255,255,.1);}
.social-row a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.social-row svg{width:17px;height:17px;fill:currentColor;}
.footer-bottom{border-top:1px solid var(--mock-line);margin-top:2.5rem;padding-top:1.5rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.75rem;font-size:.8rem;font-family:'Plex Mono',monospace;color:var(--ink-faint);}
.footer-bottom a{color:var(--ink-faint);text-decoration:underline;}

/* ---------- WhatsApp FAB ---------- */
.wa-fab{
  position:fixed;right:1.25rem;bottom:1.25rem;z-index:60;
  width:56px;height:56px;border-radius:999px;background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(11,23,48,.35);
  text-decoration:none;
}
.wa-fab svg{width:28px;height:28px;fill:currentColor;}
.wa-fab:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}

/* ---------- cookie banner ---------- */
.cookie-banner{
  position:fixed;left:1rem;right:1rem;bottom:1rem;z-index:70;max-width:640px;margin:0 auto;
  background:var(--navy-900);color:var(--mock-ink);border-radius:var(--radius-md);
  padding:1.1rem 1.3rem;display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
  box-shadow:0 12px 32px rgba(11,23,48,.35);
  transform:translateY(140%);transition:transform .3s var(--ease-out);
}
.cookie-banner.is-visible{transform:translateY(0);}
.cookie-banner p{font-size:.86rem;color:var(--mock-ink-soft);flex:1 1 220px;}
.cookie-banner .actions{display:flex;gap:.6rem;flex-shrink:0;}
.cookie-banner button{
  font-family:'Plex Sans',sans-serif;font-weight:600;font-size:.82rem;padding:.55rem 1rem;border-radius:999px;border:1px solid var(--mock-line);
  background:transparent;color:var(--mock-ink);cursor:pointer;
}
.cookie-banner button.accept{background:var(--accent);border-color:var(--accent);color:#fff;}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem;}
@media (max-width:640px){.form-grid{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:.4rem;}
.field.full{grid-column:1 / -1;}
.field label{font-size:.85rem;font-weight:600;color:var(--ink);}
.field input,.field select,.field textarea{
  font-family:'Plex Sans',sans-serif;font-size:.96rem;padding:.75rem .9rem;border-radius:8px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
}
.field textarea{resize:vertical;min-height:110px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent-strong);outline-offset:1px;border-color:transparent;}
.field .error-msg{font-size:.8rem;color:var(--accent-strong);display:none;}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--accent-strong);}
.field.has-error .error-msg{display:block;}
.form-status{font-size:.9rem;padding:.9rem 1.1rem;border-radius:8px;margin-top:1rem;display:none;}
.form-status.show{display:block;}
.form-status.success{background:#E5F3EA;color:#1B5E32;}
.form-status.error{background:var(--accent-tint);color:var(--accent-ink);}

.tablewrap{overflow-x:auto;}
table{border-collapse:collapse;width:100%;font-size:.92rem;}
th,td{text-align:left;padding:.8rem .9rem;border-bottom:1px solid var(--line);vertical-align:top;}
th{font-family:'Plex Mono',monospace;font-size:.68rem;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-faint);font-weight:600;}

.map-frame{border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;height:340px;}
.map-frame iframe{width:100%;height:100%;border:0;}

.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:.8rem 1.2rem;border-radius:0 0 8px 0;z-index:100;font-weight:700;text-decoration:none;}
.skip-link:focus{left:0;}