/* Home de Linkvia (www.): diseño de Eric (20/10/2026) con la marca de docs/marca.
   Una sola columna de secciones a lo ancho; héroe partido en texto + teléfono; la calculadora es el centro de la página. */
:root{
  --verde:#25D366; --fluor:#39FF6A; --barra:#008069; --profundo:#075E54;
  --bg:#FFFFFF; --bg-alt:#F3F6F4; --chat:#EFEAE2; --burbuja:#D9FDD3; --burbuja-in:#FFFFFF;
  --fg:#111B21; --muted:#54656F; --line:#E2E8E5; --card:#FFFFFF;
  --brand-text:#075E54; --phone:#111B21; --on-fluor:#0B141A; --head:#008069; --shadow:0 1px 2px rgb(11 20 26 / .08), 0 8px 24px rgb(11 20 26 / .06);
  --display:"Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --body:Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0B141A; --bg-alt:#111B21; --chat:#0B141A; --burbuja:#005C4B; --burbuja-in:#202C33;
  --fg:#E9EDEF; --muted:#8696A0; --line:#222D34; --card:#111B21; --brand-text:#E9EDEF; --head:#202C33; --barra:#00A884; --phone:#2A3942;
  --shadow:0 1px 2px rgb(0 0 0 / .4); color-scheme:dark }}
:root[data-theme="dark"]{
  --bg:#0B141A; --bg-alt:#111B21; --chat:#0B141A; --burbuja:#005C4B; --burbuja-in:#202C33;
  --fg:#E9EDEF; --muted:#8696A0; --line:#222D34; --card:#111B21; --brand-text:#E9EDEF; --head:#202C33; --barra:#00A884; --phone:#2A3942;
  --shadow:0 1px 2px rgb(0 0 0 / .4); color-scheme:dark }
*{box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
.wrap{max-width:1240px;margin:0 auto;padding-left:max(16px, env(safe-area-inset-left, 0px));padding-right:max(16px, env(safe-area-inset-right, 0px))}
h1,h2,h3{font-family:var(--display);line-height:1.12;text-wrap:balance;margin:0}
h1{font-size:clamp(2.1rem, 5vw, 3.5rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem, 3.2vw, 2.3rem);font-weight:800;letter-spacing:-.015em}
h3{font-size:1.15rem;font-weight:700}
p{margin:0}
a{color:inherit}
.eyebrow{font-family:var(--display);font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--barra)}
:root[data-theme="dark"] .eyebrow{color:var(--verde)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .eyebrow{color:var(--verde)}}
.lead{font-size:1.15rem;color:var(--muted);max-width:40rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;white-space:nowrap;font-family:var(--display);font-weight:700;font-size:1rem;text-decoration:none;border-radius:999px;padding:.8rem 1.4rem;border:0;cursor:pointer;transition:transform .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--barra);outline-offset:2px}
.btn-fluor{background:var(--fluor);color:var(--on-fluor)}
.btn-barra{background:var(--barra);color:#FFFFFF}
.btn-ghost{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1.5px var(--line)}
/* Cabecera */
header{position:sticky;top:env(safe-area-inset-top, 0px);z-index:5;background:color-mix(in srgb, var(--bg) 88%, transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top, 0px);z-index:10;background:var(--bg)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo img{height:34px;width:auto;display:block}
.logo .oscuro{display:none}
:root[data-theme="dark"] .logo .claro{display:none}:root[data-theme="dark"] .logo .oscuro{display:block}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .logo .claro{display:none}:root:not([data-theme="light"]) .logo .oscuro{display:block}}
.nav nav{display:flex;gap:22px;align-items:center}
.nav nav a{text-decoration:none;color:var(--muted);font-weight:500;font-size:.95rem}
.nav nav a:hover{color:var(--fg)}
.nav nav a.btn-barra,.nav nav a.btn-barra:hover{color:#FFFFFF;padding:.6rem 1.1rem;font-size:.95rem}
html{scroll-behavior:smooth}
section,#inicio{scroll-margin-top:72px}
.nav nav a.hide-sm.active{color:var(--barra);font-weight:600}
.theme-btn{display:inline-flex;width:44px;height:44px;border-radius:12px;border:0;background:transparent;color:var(--muted);cursor:pointer;align-items:center;justify-content:center}
.theme-btn:hover{color:var(--fg)}
.theme-btn svg{width:22px;height:22px}
.theme-btn .sun{display:none}
:root[data-theme="dark"] .theme-btn .sun{display:block}:root[data-theme="dark"] .theme-btn .moon{display:none}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .theme-btn .sun{display:block}:root:not([data-theme="light"]) .theme-btn .moon{display:none}}
.theme-btn:focus-visible{outline:3px solid var(--barra);outline-offset:2px}
.menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:0;background:transparent;color:var(--fg);cursor:pointer;align-items:center;justify-content:center}
.menu-btn svg{width:24px;height:24px}
.menu-btn:focus-visible{outline:3px solid var(--barra);outline-offset:2px}
.menu-panel{display:none}
@media (max-width:820px){
  .nav nav a.hide-sm{display:none}
  .nav nav{gap:8px}
  .menu-btn{display:inline-flex}
  .logo img{height:28px}
  .menu-panel{display:block;position:absolute;left:0;right:0;top:100%;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08);padding:8px 16px 16px;transform-origin:top;transition:opacity .15s ease, transform .15s ease}
  .menu-panel[hidden]{display:none}
  .menu-panel a{display:block;padding:14px 4px;text-decoration:none;color:var(--fg);font-weight:600;font-family:var(--display);border-bottom:1px solid var(--line)}
  .menu-panel a:last-child{border-bottom:0}
  .menu-panel a.active{color:var(--barra)}
}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
.hero .tagline{font-family:var(--display);font-weight:800;font-size:clamp(1.35rem, 2.6vw, 1.9rem);line-height:1.2;color:var(--barra);margin:16px 0 0;text-wrap:balance}
/* Héroe */
.hero{padding-block:56px 64px}
.hero-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:48px;align-items:center}
.hero-grid > *{min-width:0}
.hero h1 .accent{color:var(--barra)}
:root[data-theme="dark"] .hero h1 .accent{color:var(--verde)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .hero h1 .accent{color:var(--verde)}}
.hero .lead{margin-top:18px}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-note{margin-top:14px;font-size:.9rem;color:var(--muted)}
.phone{width:min(330px,100%);margin-inline:auto;border-radius:34px;background:var(--phone);padding:10px;box-shadow:var(--shadow)}
.screen{border-radius:26px;overflow:hidden;background:var(--chat)}
.chat-head{background:var(--head);color:#FFFFFF;display:flex;align-items:center;gap:10px;padding:14px 14px}
.avatar{width:36px;height:36px;border-radius:50%;background:#FFFFFF;color:var(--barra);display:grid;place-items:center;font-family:var(--display);font-weight:800}
.chat-head b{display:block;font-family:var(--display);font-size:.98rem}
.chat-head small{opacity:.85;font-size:.78rem}
.msgs{display:flex;flex-direction:column;justify-content:flex-end;gap:8px;padding:14px 12px 10px;height:360px;overflow:hidden}
.msgs > *{flex:none}
.msg.pop{animation:pop .28s ease-out}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.97)}to{opacity:1;transform:none}}
.ticks{display:inline-block;width:16px;height:10px;margin-left:3px;vertical-align:-1px;color:var(--muted);transition:color .3s}
.ticks.read{color:#53BDEB}
.chat-head small{transition:opacity .2s}
.composer{display:flex;align-items:center;gap:8px;padding:6px 10px 12px}
.cfield{flex:1;min-width:0;background:var(--burbuja-in);border-radius:22px;padding:9px 14px;font-size:.92rem;line-height:1.3;min-height:38px;color:var(--fg);box-shadow:0 1px .5px rgb(11 20 26 / .13);white-space:nowrap;overflow:hidden;text-overflow:clip;direction:ltr}
.cfield{display:flex;align-items:center}
.cfield .txt{overflow:hidden;white-space:nowrap;display:flex;justify-content:flex-end;min-width:0}
.cfield .txt:empty::before{content:"Mensaje";color:var(--muted)}
.cfield .caret{display:none;flex:none;width:1.5px;height:1.1em;background:var(--barra);margin-left:1px;animation:caret 1s steps(1) infinite}
.cfield.on .caret{display:block}
.cfield.on .txt:empty::before{content:none}
@keyframes caret{50%{opacity:0}}
.send{flex:none;width:38px;height:38px;border-radius:50%;background:var(--barra);display:grid;place-items:center;transition:transform .15s}
.send.press{transform:scale(.88)}
.send svg{width:18px;height:18px}
.msgs.fade{transition:opacity .5s;opacity:0}
.msg{max-width:80%;padding:7px 10px 6px;border-radius:9px;font-size:.92rem;box-shadow:0 1px .5px rgb(11 20 26 / .13);line-height:1.35}
.msg.in{background:var(--burbuja-in);align-self:flex-start;border-top-left-radius:2px}
.msg.out{background:var(--burbuja);align-self:flex-end;border-top-right-radius:2px}
.msg time{display:block;text-align:right;font-size:.68rem;color:var(--muted);margin-top:2px}
.typing{display:inline-flex;gap:4px;padding:10px 12px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.3}40%{opacity:1}}
@media (prefers-reduced-motion: reduce){.typing i{animation:none;opacity:.7}.btn{transition:none}.msg.pop{animation:none}.cfield .caret{animation:none}}
@media (max-width:820px){.hero-grid{grid-template-columns:1fr}.hero{padding-block:36px 48px}}
/* Secciones */
section{padding-block:64px}
.alt{background:var(--bg-alt)}
.sec-head{display:flex;flex-direction:column;gap:10px;max-width:56rem;margin-bottom:32px}
.sec-head p{color:var(--muted)}
/* Calculadora */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.calc > *{min-width:0}
.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:22px}
.field:last-child{margin-bottom:0}
.field label{font-weight:600;font-size:.95rem}
.field .hint{font-size:.84rem;color:var(--muted)}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.help{margin:10px 0 0;color:var(--muted)}
.help a{color:var(--barra);font-weight:600}
.field .label{font-weight:600;font-size:.95rem}
.seg{display:inline-flex;background:var(--bg-alt);border:1px solid var(--line);border-radius:999px;padding:3px}
.seg button{font:inherit;font-weight:600;font-size:.92rem;border:0;background:transparent;color:var(--muted);padding:.5rem 1rem;border-radius:999px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--barra);color:#FFFFFF}
.seg button:focus-visible{outline:3px solid var(--barra);outline-offset:2px}
.fx{display:inline-flex;align-items:center;gap:8px;font-size:.92rem;color:var(--muted)}
.fx[hidden]{display:none}
.fx input{width:110px}
input[type=range]{flex:1;accent-color:var(--barra);min-width:0}
input[type=number]{width:7.5rem;font:inherit;font-variant-numeric:tabular-nums;padding:.5rem .6rem;border-radius:10px;border:1.5px solid var(--line);background:var(--bg);color:var(--fg)}
.result .big{font-family:var(--display);font-weight:800;font-size:clamp(2.2rem,5vw,3.1rem);letter-spacing:-.02em;color:var(--barra);font-variant-numeric:tabular-nums}
:root[data-theme="dark"] .result .big{color:var(--fluor)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .result .big{color:var(--fluor)}}
.result .sub{color:var(--muted);margin-top:4px}
.bars{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.bar-row{display:grid;grid-template-columns:7.5rem 1fr auto;gap:12px;align-items:center;font-variant-numeric:tabular-nums}
.bar-row span:first-child{font-weight:600;font-size:.92rem}
.track{height:14px;border-radius:999px;background:var(--bg-alt);overflow:hidden}
.fill{height:100%;border-radius:999px;transition:width .3s ease}
.fill.wa{background:var(--muted)}
.fill.lv{background:var(--verde)}
.bar-row b{font-size:.95rem;min-width:6.5rem;text-align:right}
.breakdown{margin-top:22px;border-top:1px solid var(--line);padding-top:16px;display:grid;gap:6px;font-size:.88rem;color:var(--muted)}
.breakdown div{display:flex;justify-content:space-between;gap:12px;font-variant-numeric:tabular-nums}
.breakdown div span:last-child{color:var(--fg);text-align:right}
@media (max-width:820px){.calc{grid-template-columns:1fr}.bar-row{grid-template-columns:5.5rem 1fr auto}}
/* Pasos */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:paso}
.step{display:flex;flex-direction:column;gap:10px}
.step::before{counter-increment:paso;content:counter(paso);width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--verde);color:#FFFFFF;font-family:var(--display);font-weight:800}
.step p{color:var(--muted)}
@media (max-width:820px){.steps{grid-template-columns:1fr}}
/* Beneficios */
.benefits{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 40px}
.benefit{display:flex;flex-direction:column;gap:6px;padding-left:16px;border-left:3px solid var(--verde)}
.benefit p{color:var(--muted)}
@media (max-width:820px){.benefits{grid-template-columns:1fr}}
/* Planes */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan{display:flex;flex-direction:column;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px}
.plan.pro{border:2px solid var(--verde);box-shadow:var(--shadow)}
.plan .price{font-family:var(--display);font-weight:800;font-size:2.2rem;letter-spacing:-.02em}
.plan .price small{font-size:1rem;font-weight:600;color:var(--muted)}
.plan ul{margin:0;padding:0;list-style:none;display:grid;gap:8px;font-size:.93rem}
.plan li{display:flex;gap:8px}
.plan li::before{content:"";flex:none;width:8px;height:8px;margin-top:.5em;border-radius:50%;background:var(--verde)}
.plan .tag{align-self:flex-start;font-size:.75rem;font-weight:700;font-family:var(--display);letter-spacing:.04em;text-transform:uppercase;background:var(--fluor);color:var(--on-fluor);padding:.25rem .6rem;border-radius:999px}
.plans-note{margin-top:16px;font-size:.88rem;color:var(--muted)}
@media (max-width:900px){.plans{grid-template-columns:1fr}}
/* Desarrolladores */
.dev{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.dev > *{min-width:0}
.code{background:#0B141A;color:#E9EDEF;border-radius:16px;padding:18px 20px;font:500 .85rem/1.6 ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;overflow-x:auto}
.code .k{color:#39FF6A}.code .c{color:#8696A0}
@media (max-width:820px){.dev{grid-template-columns:1fr}}
/* Preguntas */
.faq{display:grid;gap:10px;max-width:56rem}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px}
summary{cursor:pointer;font-weight:600;font-family:var(--display)}
details p{margin-top:10px;color:var(--muted)}
/* Cierre y pie */
.final{text-align:left;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.final h2{max-width:28rem}
footer{border-top:1px solid var(--line);padding-block:28px;color:var(--muted);font-size:.88rem}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}
.foot nav{display:flex;flex-wrap:wrap;gap:18px}
.foot a{color:inherit}

/* Para tus clientes */
.clientes{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.clientes > *{min-width:0}
.clientes ul{margin:0;padding:0;list-style:none;display:grid;gap:14px}
.clientes li{display:flex;flex-direction:column;gap:2px;padding-left:16px;border-left:3px solid var(--verde)}
.clientes li span{color:var(--muted)}
@media (max-width:820px){.clientes{grid-template-columns:1fr}}
.fuente{font-size:.84rem;color:var(--muted);margin-top:10px}
.fuente a{color:var(--barra)}
:root[data-theme="dark"] .fuente a,:root[data-theme="dark"] .help a{color:var(--verde)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .fuente a,:root:not([data-theme="light"]) .help a{color:var(--verde)}}
.code .s{color:#FFD279}.code .del{color:#FF8A8A}.code .add{color:#39FF6A}
.foot .links{display:flex;flex-wrap:wrap;gap:18px}

/* Página para desarrolladores (agentes/) */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px;display:flex;flex-direction:column;gap:6px}
.card p{color:var(--muted);font-size:.95rem}
.card code,.lead code,.sec-head code{font-size:.88em}
@media (max-width:900px){.cards{grid-template-columns:1fr}}
.tabla{overflow-x:auto}
.tabla table{width:100%;min-width:560px;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden}
.tabla th,.tabla td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top;font-size:.95rem}
.tabla th{font-family:var(--display);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--barra);background:var(--bg-alt)}
.tabla tr:last-child td{border-bottom:0}
.tabla td:first-child{font-weight:600}
.tabla .si{color:var(--barra);font-weight:600}
:root[data-theme="dark"] .tabla .si,:root[data-theme="dark"] .tabla th{color:var(--verde)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .tabla .si,:root:not([data-theme="light"]) .tabla th{color:var(--verde)}}
.stream .msg.in::after{content:"▍";color:var(--barra);animation:caret 1s steps(1) infinite}
@media (prefers-reduced-motion: reduce){.stream .msg.in::after{animation:none}}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:2px}
.chips span{border:1px solid var(--barra);color:var(--barra);border-radius:999px;padding:3px 10px;font-size:.8rem;background:var(--burbuja-in)}