/* Sitio Lic. Bernardo Contreras · manual de marca v1.0
   Tinta, grises y blanco. El verde (#0E8A5F) solo en el hito verificado. */
:root{
  --tinta:#0B1C2C; --verde:#0E8A5F; --nodo:#7C8A99; --gtexto:#4A5563; --gclaro:#B8C2CC; --blanco:#FFFFFF;
  --bg:var(--blanco); --fg:var(--tinta); --muted:var(--gtexto); --line:#DDE3E8; --card:var(--blanco); --soft:#F2F5F7;
  --btn-bg:var(--tinta); --btn-fg:var(--blanco);
  --f-display:'Sora','Segoe UI',system-ui,sans-serif;
  --f-body:'IBM Plex Sans','Segoe UI',system-ui,sans-serif;
  --f-mono:'IBM Plex Mono',ui-monospace,Consolas,monospace;
  --gutter:clamp(16px,4vw,40px);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){ --bg:var(--tinta); --fg:var(--blanco); --muted:var(--gclaro); --line:#26394B; --card:#0F2436; --soft:#10273A; --btn-bg:var(--blanco); --btn-fg:var(--tinta); color-scheme:dark; }
}
:root[data-theme="dark"]{ --bg:var(--tinta); --fg:var(--blanco); --muted:var(--gclaro); --line:#26394B; --card:#0F2436; --soft:#10273A; --btn-bg:var(--blanco); --btn-fg:var(--tinta); color-scheme:dark; }

*{box-sizing:border-box}
html{scroll-behavior:smooth; scroll-padding-top:84px}
body{margin:0; background:var(--bg); color:var(--fg); font:16px/1.6 var(--f-body); -webkit-font-smoothing:antialiased}
a{color:inherit}
img,svg{max-width:100%}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--nodo); outline-offset:3px; border-radius:6px}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} *{animation:none!important; transition:none!important} }
.wrap{max-width:1160px; margin:0 auto; padding-inline:var(--gutter)}
h1,h2,h3{font-family:var(--f-display); margin:0; text-wrap:balance; letter-spacing:-.015em}
p{margin:0}
.label{font:500 12px/1.4 var(--f-mono); letter-spacing:.14em; text-transform:uppercase}
.sr{position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden}

/* Logo: contorno blanco solo sobre fondo oscuro (versión negativa del manual) */
.contorno{stroke-opacity:0}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .contorno{stroke-opacity:1} }
:root[data-theme="dark"] .contorno{stroke-opacity:1}
.hero .contorno, .on-dark .contorno{stroke-opacity:1}

/* Encabezado: el menú es la línea de hitos */
header.top{position:sticky; top:0; z-index:20; background:color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter:blur(8px); border-bottom:1px solid var(--line)}
header.top .wrap{display:flex; align-items:center; gap:20px; min-height:68px}
.logo{display:flex; align-items:center; gap:12px; text-decoration:none; flex-shrink:0}
.logo b{display:block; font:600 16px/1.15 var(--f-display)}
.logo small{display:block; font:500 10px var(--f-mono); letter-spacing:.14em; color:var(--muted); margin-top:3px}
nav.hitos{flex:1; display:flex; justify-content:center; min-width:0}
nav.hitos ol{list-style:none; margin:0; padding:0; display:flex; align-items:center}
nav.hitos li{display:flex; align-items:center}
nav.hitos li+li::before{content:""; width:clamp(12px,2.6vw,36px); height:2px; background:var(--nodo)}
nav.hitos a{display:flex; align-items:center; gap:8px; padding:8px 6px; text-decoration:none; font-size:14px; font-weight:500; color:var(--muted); white-space:nowrap}
nav.hitos a:hover, nav.hitos a[aria-current="page"]{color:var(--fg)}
nav.hitos .n{width:10px; height:10px; border-radius:50%; background:var(--nodo); flex-shrink:0; transition:transform .2s}
nav.hitos a[aria-current="page"] .n{background:var(--fg); transform:scale(1.35)}
.lang{display:flex; border:1px solid var(--line); border-radius:999px; overflow:hidden; flex-shrink:0}
.lang button{all:unset; cursor:pointer; padding:6px 11px; font:500 12px var(--f-mono); letter-spacing:.08em; color:var(--muted)}
.lang button[aria-pressed="true"]{background:var(--fg); color:var(--bg)}
.lang button:focus-visible{outline:3px solid var(--nodo); outline-offset:-3px}
.btn{display:inline-flex; align-items:center; justify-content:center; gap:10px; min-height:46px; padding:0 22px; border-radius:999px; font:600 15px var(--f-body); text-decoration:none; border:1.5px solid transparent; cursor:pointer; transition:transform .15s, border-color .15s}
.btn:hover{transform:translateY(-1px)}
.btn-main{background:var(--btn-bg); color:var(--btn-fg)}
.btn-line{border-color:var(--fg); color:var(--fg); background:transparent}
.btn-top{min-height:40px; padding:0 16px; font-size:14px}
@media (max-width: 960px){ nav.hitos .t{display:none} }
@media (max-width: 640px){ header .logo > span{position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap} nav.hitos{display:none} header.top .wrap{justify-content:space-between; gap:10px} .btn-top{padding:0 14px; font-size:13px} }

/* Portada oscura de cada página */
.hero{background:var(--tinta); color:var(--blanco); border-bottom:1px solid #26394B}
.hero .wrap{padding-block:clamp(52px,7vw,96px) clamp(40px,6vw,72px)}
.hero .label{color:var(--gclaro)}
.hero h1{font-size:clamp(36px,5.6vw,68px); line-height:1.04; font-weight:700; margin-top:18px; max-width:17ch}
.hero.big h1{font-size:clamp(38px,6.2vw,76px); max-width:15ch}
.hero p.sub{color:var(--gclaro); font-size:clamp(17px,1.6vw,19px); max-width:60ch; margin-top:22px}
.hero .ctas{display:flex; flex-wrap:wrap; gap:12px; margin-top:32px}
.btn-light{background:var(--blanco); color:var(--tinta)}
.btn-ghost{border-color:#3B5166; color:var(--blanco)}
.btn-ghost:hover{border-color:var(--blanco)}

/* Línea de hitos animada: se dibuja una vez y termina verificada */
.trayecto{margin-top:clamp(40px,6vw,68px)}
.trayecto svg{display:block; width:100%; height:auto}
.tray-mob{display:none!important}
@media (max-width: 640px){ .tray-desk{display:none!important} .tray-mob{display:block!important} }
.trayecto .tramo{stroke-dasharray:1100; stroke-dashoffset:1100; animation:dibuja 1.8s ease-out .3s forwards}
.trayecto .nodo{opacity:0; animation:aparece .3s ease-out forwards}
.trayecto .hito{opacity:0; transform-origin:center; transform-box:fill-box; animation:verifica .45s cubic-bezier(.2,1.4,.4,1) 2.05s forwards}
@keyframes dibuja{to{stroke-dashoffset:0}}
@keyframes aparece{to{opacity:1}}
@keyframes verifica{from{opacity:0; transform:scale(.4)} to{opacity:1; transform:scale(1)}}
@media (prefers-reduced-motion: reduce){ .trayecto .tramo{stroke-dashoffset:0} .trayecto .nodo,.trayecto .hito{opacity:1} }

/* Secciones */
section.blk{padding-block:clamp(56px,8vw,96px)}
section.blk + section.blk{border-top:1px solid var(--line)}
.head{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:20px 48px; align-items:end; margin-bottom:36px}
.head .label{color:var(--muted); display:block; margin-bottom:12px}
.head h2{font-size:clamp(28px,3.4vw,40px); line-height:1.12; font-weight:600}
.head p{color:var(--muted); max-width:58ch; font-size:17px}
@media (max-width: 820px){ .head{grid-template-columns:1fr} }
.chip{display:inline-flex; font:500 11px var(--f-mono); letter-spacing:.1em; text-transform:uppercase; padding:4px 8px; border:1px solid var(--line); border-radius:6px; color:var(--muted); white-space:nowrap}
.flecha{width:36px; height:36px; border-radius:50%; border:1.5px solid var(--fg); display:grid; place-items:center; flex-shrink:0; transition:background .15s, color .15s}

/* Tarjetas de entrada (portada) */
.entradas{display:grid; grid-template-columns:1.25fr 1fr 1fr; gap:18px}
@media (max-width: 960px){ .entradas{grid-template-columns:1fr} }
.entrada{display:flex; flex-direction:column; gap:14px; padding:28px; border:1px solid var(--line); border-radius:16px; background:var(--card); text-decoration:none; min-width:0; transition:border-color .15s}
.entrada:hover{border-color:var(--nodo)}
.entrada:hover .flecha{background:var(--fg); color:var(--bg)}
.entrada .top{display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap}
.entrada .label{color:var(--muted)}
.entrada h3{font-size:26px; font-weight:600; line-height:1.15}
.entrada.primera h3{font-size:32px}
.entrada p{color:var(--muted)}
.entrada .pie{margin-top:auto; padding-top:16px; border-top:1px solid var(--line); display:flex; justify-content:space-between; align-items:center; gap:12px; font-size:14px}
.entrada .pie b{font-weight:600}

/* Credenciales */
.cred{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); border-top:2px solid var(--fg)}
.cred div{padding:20px 20px 0 0; display:flex; flex-direction:column; gap:4px; min-width:0}
.cred div+div{padding-left:20px; border-left:1px solid var(--line)}
.cred b{font:600 28px var(--f-display); font-variant-numeric:tabular-nums}
.cred span{font-size:14px; color:var(--muted)}
@media (max-width: 760px){ .cred{grid-template-columns:repeat(2,minmax(0,1fr))} .cred div:nth-child(3){padding-left:0; border-left:0} .cred div{padding-bottom:16px} }

/* Reglas del método */
.reglas{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:22px}
@media (max-width: 960px){ .reglas{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width: 560px){ .reglas{grid-template-columns:1fr} }
.regla{display:flex; flex-direction:column; gap:10px; min-width:0}
.regla .label{color:var(--muted)}
.regla h3{font-size:18px; font-weight:600; line-height:1.3}
.regla p{color:var(--muted); font-size:15px}

/* Herramientas (suite) */
.tools{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px}
@media (max-width: 820px){ .tools{grid-template-columns:1fr} }
.tool{border:1px solid var(--line); border-radius:16px; background:var(--card); padding:26px; display:flex; flex-direction:column; gap:12px; min-width:0}
.tool.demo{border-color:var(--fg)}
.tool .top{display:flex; justify-content:space-between; gap:12px; align-items:center; flex-wrap:wrap}
.tool h3{font-size:22px; font-weight:600}
.tool p{color:var(--muted); font-size:15.5px}
.tool .acc{margin-top:auto; display:flex; gap:10px; flex-wrap:wrap; padding-top:8px}
.tool.core{grid-column:1/-1}

/* Línea de tiempo (experiencia) */
.timeline{list-style:none; margin:0; padding:0; position:relative}
.timeline::before{content:""; position:absolute; left:7px; top:10px; bottom:10px; width:2px; background:var(--nodo)}
.timeline li{position:relative; padding:0 0 32px 40px; display:grid; grid-template-columns:110px minmax(0,1fr); gap:6px 20px}
.timeline li::before{content:""; position:absolute; left:0; top:6px; width:16px; height:16px; border-radius:50%; background:var(--bg); border:3px solid var(--nodo)}
.timeline li:first-child::before{border-color:var(--fg); background:var(--fg)}
.timeline .when{font:500 14px var(--f-mono); letter-spacing:.06em; color:var(--muted); padding-top:2px}
.timeline h3{font-size:20px; font-weight:600}
.timeline p{color:var(--muted); font-size:15.5px; margin-top:4px}
@media (max-width: 600px){ .timeline li{grid-template-columns:1fr} }
.certs{width:100%; border-collapse:collapse; font-size:15px}
.certs th{font:500 11px var(--f-mono); letter-spacing:.12em; text-transform:uppercase; color:var(--muted); text-align:left; padding:0 12px 10px 0; border-bottom:1px solid var(--line)}
.certs td{padding:12px 12px 12px 0; border-bottom:1px solid var(--line); font-variant-numeric:tabular-nums}
.tabla{overflow-x:auto}
.chips{display:flex; flex-wrap:wrap; gap:8px}
.dos{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:clamp(24px,5vw,64px); align-items:start}
@media (max-width: 860px){ .dos{grid-template-columns:1fr} }

/* Posts */
.posts{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px}
@media (max-width: 900px){ .posts{grid-template-columns:1fr} }
.post{border:1px solid var(--line); border-radius:14px; background:var(--card); padding:22px; display:flex; flex-direction:column; gap:10px; min-width:0}
.post .label{color:var(--muted)}
.post h3{font-size:18px; font-weight:600; line-height:1.3}
.post p{color:var(--muted); font-size:15px}
.post a{margin-top:auto; font-weight:600; font-size:14.5px; text-underline-offset:3px}
.vacio{border:1px dashed var(--line); border-radius:14px; padding:32px; display:flex; flex-direction:column; gap:14px; align-items:flex-start}
.vacio p{color:var(--muted); max-width:56ch}

/* Formularios */
.req{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.3fr); gap:clamp(24px,5vw,64px); align-items:start}
@media (max-width: 900px){ .req{grid-template-columns:1fr} }
.req aside p{color:var(--muted)}
.req aside p + p{margin-top:12px}
form.f{background:var(--card); border:1px solid var(--line); border-radius:18px; padding:clamp(20px,3vw,32px); display:grid; grid-template-columns:1fr 1fr; gap:18px}
@media (max-width: 560px){ form.f{grid-template-columns:1fr} }
.field{display:flex; flex-direction:column; gap:6px; min-width:0}
.field.full{grid-column:1/-1}
.field label, .field .lab{font-size:14px; font-weight:600}
.field input[type=text], .field input[type=email], .field select, .field textarea{width:100%; min-height:44px; border:1.5px solid var(--line); border-radius:10px; background:var(--soft); color:var(--fg); padding:10px 12px; font:15px var(--f-body)}
.field textarea{min-height:110px; resize:vertical}
.field input:focus, .field select:focus, .field textarea:focus{outline:none; border-color:var(--fg)}
.checks{display:grid; grid-template-columns:1fr 1fr; gap:8px}
@media (max-width: 560px){ .checks{grid-template-columns:1fr} }
.check{display:flex; gap:10px; align-items:flex-start; padding:10px 12px; border:1.5px solid var(--line); border-radius:10px; cursor:pointer; font-size:14.5px; background:var(--soft)}
.check:has(input:checked){border-color:var(--fg)}
.check input, .consent input{width:18px; height:18px; margin:2px 0 0; accent-color:var(--tinta); flex-shrink:0}
.consent{grid-column:1/-1; display:flex; gap:10px; align-items:flex-start; font-size:13.5px; color:var(--muted)}
.hp{position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden}
.form-foot{grid-column:1/-1; display:flex; flex-wrap:wrap; gap:14px; align-items:center; justify-content:space-between}
.status{font-size:14.5px}
.status.err{color:#B42318}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .status.err{color:#FDA29B} }
:root[data-theme="dark"] .status.err{color:#FDA29B}
.btn[disabled]{opacity:.6; cursor:progress}

/* Texto legal */
.prosa{max-width:68ch}
.prosa h2{font-size:22px; font-weight:600; margin:32px 0 10px}
.prosa p, .prosa li{color:var(--muted)}
.prosa p + p{margin-top:12px}
.prosa ul{padding-left:20px}

footer{border-top:1px solid var(--line); padding-block:40px calc(32px + env(safe-area-inset-bottom,0px))}
footer .wrap{display:grid; grid-template-columns:1.4fr repeat(3,minmax(0,1fr)); gap:28px}
footer .fh{font:500 11px var(--f-mono); letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin:0 0 10px}
footer ul{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:4px; font-size:14.5px}
footer ul a{display:inline-block; padding:3px 0}
footer a{text-decoration:none} footer a:hover{text-decoration:underline}
footer .legal{grid-column:1/-1; padding-top:20px; border-top:1px solid var(--line); font-size:13px; color:var(--muted); display:flex; flex-wrap:wrap; gap:8px 24px; justify-content:space-between}
@media (max-width: 760px){ footer .wrap{grid-template-columns:1fr 1fr} }

/* Saltar al contenido: visible solo con teclado */
.skip{position:absolute; left:16px; top:-60px; z-index:50; background:var(--fg); color:var(--bg); padding:10px 16px; border-radius:8px; font-weight:600; text-decoration:none}
.skip:focus{top:12px}