/* ═══════════════════════════════════════════════════════════
   EL PLANO DEL PUENTE — sistema de diseño · eduardogtlopez.com
   Paleta teal/petróleo · tipografía editorial · motivos de plano
   ═══════════════════════════════════════════════════════════ */
:root{
  --paper:#eef4f5; --paper-2:#e7eff0; --panel:#e2edee;
  --ink:#0e3a44; --ink2:#4c6a71;
  --line:rgba(14,58,68,.22); --line2:rgba(14,58,68,.10);
  --teal:#1690a6; --teal2:#1fa5bd; --teal-deep:#0c3540; --teal-soft:rgba(22,144,166,.10);
  --max:1120px;
  --f-disp:'Fraunces',Georgia,serif;
  --f-body:'Hanken Grotesk',system-ui,sans-serif;
  --f-mono:'IBM Plex Mono',monospace;
  --f-hand:'Caveat',cursive;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--f-body);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(var(--line2) 1px,transparent 1px);background-size:26px 26px;opacity:.55}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
.mono{font-family:var(--f-mono)}
.hand{font-family:var(--f-hand)}
.wrap{position:relative;z-index:2;width:100%;max-width:var(--max);margin:0 auto;padding:0 40px}
@media(max-width:640px){.wrap{padding:0 22px}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}.reveal{opacity:1!important;transform:none!important}}
a:focus-visible,button:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}

/* marco de lámina */
.sheet{position:fixed;inset:14px;border:1px solid var(--line);pointer-events:none;z-index:40}
.sheet::before{content:'';position:absolute;inset:6px;border:1px solid var(--line2)}
@media(max-width:640px){.sheet{inset:8px}}

/* reveal sobrio */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.vis{opacity:1;transform:none}

/* ── NAV ── */
.nav{position:sticky;top:0;z-index:50;background:rgba(238,244,245,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px}
.brand-av{width:38px;height:38px;border-radius:50%;overflow:hidden;border:1.5px solid var(--teal);flex-shrink:0;background:var(--panel)}
.brand-av img{width:100%;height:100%;object-fit:cover}
.brand-tx{display:block;font-family:var(--f-disp);font-weight:600;font-size:1.16rem;line-height:1;letter-spacing:-.01em}
.brand-sub{display:block;font-family:var(--f-mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink2);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:.9rem;color:var(--ink2)}
.nav-links a{transition:color .2s;padding:4px 0;border-bottom:1px solid transparent}
.nav-links a:hover{color:var(--ink);border-bottom-color:var(--teal)}
.nav-cta{display:inline-flex;align-items:center;gap:9px;background:var(--teal);color:#f2fbfd;padding:11px 20px;border-radius:3px;font-weight:700;font-size:.86rem;transition:transform .18s,background .18s}
.nav-cta:hover{background:var(--teal2);transform:translateY(-2px)}
@media(max-width:820px){.nav-links{display:none}.brand-sub{display:none}}

/* kicker */
.kick{font-family:var(--f-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--teal);display:flex;align-items:center;gap:12px;margin-bottom:22px}
.kick::before{content:'';width:34px;height:1px;background:var(--teal)}
.kick.c{justify-content:center}

/* títulos */
.h-xl{font-family:var(--f-disp);font-weight:600;font-size:clamp(2.4rem,5.3vw,4.4rem);line-height:1.02;letter-spacing:-.015em}
.h-lg{font-family:var(--f-disp);font-weight:600;font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.05;letter-spacing:-.01em}
.h-md{font-family:var(--f-disp);font-weight:600;font-size:1.5rem;line-height:1.15}
.it{font-style:italic}
.lead{font-size:1.12rem;line-height:1.72;color:#2c4d55;max-width:36em}
.lead b,.lead strong{font-weight:700;color:var(--ink)}
.sub{color:var(--ink2);font-size:1.02rem;line-height:1.7;max-width:40em}

/* botones */
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--teal);color:#f2fbfd;padding:15px 26px;border-radius:3px;font-weight:700;font-size:1rem;cursor:pointer;border:none;font-family:inherit;transition:transform .18s,background .18s}
.btn:hover{background:var(--teal2);transform:translateY(-2px)}
.btn .arw{transition:transform .18s}.btn:hover .arw{transform:translateX(4px)}
.btn-ghost{display:inline-flex;align-items:center;gap:9px;background:transparent;color:var(--ink);padding:14px 24px;border:1px solid var(--line);border-radius:3px;font-weight:500;font-size:.98rem;transition:border-color .2s,background .2s}
.btn-ghost:hover{border-color:var(--teal);background:var(--teal-soft)}
.microlbl{font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink2)}

/* secciones (ritmo variable, no uniforme) */
.section{position:relative;z-index:2;padding:88px 0}
.section.tight{padding:60px 0}
.section.wide{padding:112px 0}
.rule{border:0;border-top:1px solid var(--line);margin:0}
.two{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:44px;border:1px solid var(--line)}
.two > div{padding:34px 32px}
.two > div:first-child{border-right:1px solid var(--line)}
.two h3{font-family:var(--f-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);margin-bottom:14px}
.two p{color:var(--ink2);font-size:1rem;line-height:1.7}
@media(max-width:760px){.two{grid-template-columns:1fr}.two > div:first-child{border-right:0;border-bottom:1px solid var(--line)}}

/* ── HERO ── */
.hero{padding:64px 0 34px;display:grid;grid-template-columns:1.35fr .9fr;gap:56px;align-items:center}
@media(max-width:860px){.hero{grid-template-columns:1fr;gap:34px;padding:46px 0 18px}}
.hero .h-xl{margin-bottom:24px}
.hero .h-xl .u{position:relative;white-space:nowrap}
.hero .h-xl .u svg{position:absolute;left:-2%;right:-2%;width:104%;bottom:-.14em;height:.34em}
.hero .lead{margin-bottom:30px}
.cta-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.plate{position:relative;justify-self:center}
.plate .photo{width:350px;max-width:86vw;border:none;background:none;padding:0;transform:rotate(-1deg);box-shadow:none}
.plate .photo img{width:100%;height:auto;object-fit:contain;filter:drop-shadow(7px 12px 16px rgba(14,58,68,.22))}
.plate .tape{display:none}
.plate .spec{position:absolute;right:-6px;top:-4px;font-family:var(--f-mono);font-size:10px;color:var(--ink2)}
.plate .note{display:block;margin:18px auto 0;font-family:var(--f-hand);font-size:1.5rem;color:var(--teal);line-height:1.15;transform:rotate(-1.5deg);max-width:270px;text-align:center}
.plate .note::before{content:'\2196  '}

/* ── BANDA PUENTE ── */
.bridgeband{position:relative;z-index:2;padding:22px 0 44px}
.bridge-cap{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:6px}
.bridge-cap .t{font-family:var(--f-disp);font-style:italic;font-size:1.12rem;color:var(--ink2)}
.bridge-svg{width:100%;height:auto;overflow:visible}
.bi{stroke:var(--ink);fill:none}.bl{stroke:var(--line);fill:none}.bt{stroke:var(--teal);fill:none}
.blbl{font-family:var(--f-mono);font-size:13px;letter-spacing:.14em;fill:var(--ink);text-transform:uppercase}
.bdim{font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;fill:var(--teal)}

/* ── DIAGNÓSTICO ── */
.diag-intro{display:grid;grid-template-columns:1fr 1fr;gap:0;margin:26px 0 34px;border:1px solid var(--line)}
.diag-intro .p{padding:20px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.diag-intro .p:nth-child(2n){border-right:0}.diag-intro .p:nth-last-child(-n+2){border-bottom:0}
.diag-intro .n{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;color:var(--teal)}
.diag-intro strong{display:block;font-family:var(--f-disp);font-weight:600;font-size:1.12rem;margin:6px 0 4px}
.diag-intro span{color:var(--ink2);font-size:.9rem;line-height:1.5}
@media(max-width:600px){.diag-intro{grid-template-columns:1fr}.diag-intro .p{border-right:0}.diag-intro .p:not(:last-child){border-bottom:1px solid var(--line)}}
.diag-card{position:relative;background:#fff;border:1px solid var(--line);padding:38px 36px;box-shadow:8px 12px 0 rgba(14,58,68,.05)}
.diag-corner{position:absolute;top:12px;right:16px;font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;color:var(--ink2)}
.diag-stage{display:none}.diag-stage.on{display:block;animation:df .4s ease}
@keyframes df{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.diag-prog{display:flex;align-items:center;gap:14px;margin-bottom:24px}
.diag-prog-bar{flex:1;height:5px;background:var(--panel);overflow:hidden}
.diag-prog-fill{height:100%;width:0;background:var(--teal);transition:width .35s ease}
.diag-prog-tx{font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;color:var(--ink2);white-space:nowrap}
.diag-qp{font-family:var(--f-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--teal);margin-bottom:12px}
.diag-qt{font-family:var(--f-disp);font-weight:600;font-size:1.4rem;line-height:1.25;margin-bottom:24px}
.diag-opts{display:grid;gap:10px}
.diag-opt{display:flex;align-items:center;gap:13px;padding:15px 18px;background:var(--paper);border:1px solid var(--line);color:var(--ink);font-size:.98rem;text-align:left;cursor:pointer;font-family:inherit;transition:border-color .18s,background .18s,transform .12s}
.diag-opt:hover{border-color:var(--teal);background:var(--teal-soft);transform:translateX(3px)}
.diag-opt .dot{width:16px;height:16px;border:1.5px solid var(--ink2);flex-shrink:0;transition:border-color .2s,background .2s}
.diag-opt:hover .dot{border-color:var(--teal);background:var(--teal)}
.diag-back{margin-top:20px;background:none;border:none;color:var(--ink2);font-family:inherit;font-size:.9rem;cursor:pointer;display:inline-flex;gap:8px;align-items:center}
.diag-back:hover{color:var(--ink)}
/* resultado: puente de 4 pilares */
.diag-res-top{display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:center;margin-bottom:8px}
@media(max-width:680px){.diag-res-top{grid-template-columns:1fr;text-align:center}}
.diag-score{font-family:var(--f-disp);font-weight:700;font-size:4.6rem;line-height:.9;color:var(--teal)}
.diag-score small{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink2);margin-top:8px;font-weight:400}
.diag-band{font-family:var(--f-disp);font-weight:600;font-size:1.5rem;margin:14px 0 6px}
.diag-diag{color:var(--ink2);font-size:.98rem;line-height:1.65}
.diag-bridgeviz{width:100%;height:auto;overflow:visible;margin-top:6px}
.diag-build{padding:20px 22px;background:var(--teal-soft);border-left:3px solid var(--teal);margin:22px 0}
.diag-build strong{color:var(--ink)}
.diag-build p{color:#2c4d55;font-size:.95rem;line-height:1.65;margin-top:5px}
.diag-lead h4{font-family:var(--f-disp);font-weight:600;font-size:1.3rem;margin-bottom:6px}
.diag-lead>p{color:var(--ink2);font-size:.92rem;margin-bottom:16px}
.diag-inp{width:100%;background:var(--paper);border:1px solid var(--line);padding:14px 16px;color:var(--ink);font-size:.98rem;font-family:inherit;outline:none;margin-bottom:14px;transition:border-color .2s}
.diag-inp:focus{border-color:var(--teal)}
.diag-consent{display:flex;gap:11px;align-items:flex-start;margin-bottom:16px;cursor:pointer}
.diag-consent input{margin-top:2px;width:17px;height:17px;flex-shrink:0;accent-color:var(--teal);cursor:pointer}
.diag-consent span{font-size:.84rem;color:var(--ink2);line-height:1.5}
.diag-consent a{color:var(--teal);text-decoration:underline}
.diag-priv{font-family:var(--f-mono);font-size:10.5px;line-height:1.5;color:var(--ink2);margin-top:12px}
.diag-restart{display:block;margin:18px auto 0;background:none;border:none;color:var(--ink2);font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;cursor:pointer;text-decoration:underline}
.diag-final{text-align:center;padding:8px 0}
.diag-final .ok{font-family:var(--f-disp);font-weight:600;font-size:1.5rem;margin:12px 0 8px}
.diag-final p{color:var(--ink2);max-width:440px;margin:0 auto 22px}
.diag-final-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ── TRAMOS / método ── */
.spans{display:grid;grid-template-columns:repeat(3,1fr);margin-top:40px;border:1px solid var(--line)}
.span{padding:28px 26px 30px;border-left:1px solid var(--line)}
.span:first-child{border-left:0}
.span .no{font-family:var(--f-mono);font-size:12px;letter-spacing:.14em;color:var(--teal)}
.span h3{font-family:var(--f-disp);font-weight:600;font-size:1.45rem;margin:12px 0 8px}
.span p{color:var(--ink2);font-size:.96rem}
.span .sp{margin-top:14px;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.03em;color:var(--ink2);text-transform:uppercase}
@media(max-width:760px){.spans{grid-template-columns:1fr}.span{border-left:0;border-top:1px solid var(--line)}.span:first-child{border-top:0}}

/* ── cards (lo que construyo) ── */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
@media(max-width:820px){.cards{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);padding:26px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:6px 10px 0 rgba(14,58,68,.06)}
.card .no{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;color:var(--teal)}
.card h3{font-family:var(--f-disp);font-weight:600;font-size:1.3rem;margin:10px 0 8px}
.card p{color:var(--ink2);font-size:.94rem;line-height:1.6}
.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.tag{font-family:var(--f-mono);font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink2);border:1px solid var(--line);padding:4px 9px}
.confid{margin-top:22px;font-family:var(--f-mono);font-size:11px;color:var(--ink2)}

/* ── servicios (escalera) ── */
.ladder{display:grid;grid-template-columns:repeat(3,1fr);margin-top:40px;border:1px solid var(--line)}
.rung{padding:30px 26px;border-left:1px solid var(--line)}
.rung:first-child{border-left:0}
.rung .no{font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;color:var(--teal)}
.rung h3{font-family:var(--f-disp);font-weight:600;font-size:1.4rem;margin:10px 0 10px}
.rung p{color:var(--ink2);font-size:.94rem;line-height:1.6;margin-bottom:16px}
.rung ul{list-style:none;display:grid;gap:9px}
.rung li{display:flex;gap:10px;font-size:.9rem;color:#2c4d55;line-height:1.5}
.rung li::before{content:'';flex-shrink:0;width:6px;height:6px;background:var(--teal);margin-top:8px}
@media(max-width:820px){.ladder{grid-template-columns:1fr}.rung{border-left:0;border-top:1px solid var(--line)}.rung:first-child{border-top:0}}

/* ── CTA / contacto ── */
.cta{background:var(--teal-deep);color:var(--paper);padding:64px 48px;position:relative;overflow:hidden}
.cta .h-lg{color:#fff}
.cta p{color:rgba(238,244,245,.8);max-width:44em;margin:14px 0 28px}
.cta-actions{display:flex;gap:13px;flex-wrap:wrap}
.btn-wa{display:inline-flex;align-items:center;gap:9px;background:#eef4f5;color:var(--teal-deep);padding:15px 26px;border-radius:3px;font-weight:700;transition:transform .18s}
.btn-wa:hover{transform:translateY(-2px)}
.btn-mail{display:inline-flex;align-items:center;gap:9px;background:transparent;color:#fff;padding:14px 24px;border:1px solid rgba(238,244,245,.4);border-radius:3px;transition:border-color .2s}
.btn-mail:hover{border-color:#fff}
.contact-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:rgba(238,244,245,.7)}
.contact-row a:hover{color:#fff}

/* título-bloque + footer */
.titleblock{width:max-content;max-width:100%;margin-left:auto;background:var(--panel);border:1px solid var(--line);padding:12px 16px;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.03em;color:var(--ink2);line-height:1.9}
.titleblock b{color:var(--ink);font-weight:500}
.foot{position:relative;z-index:2;padding:26px 0 40px;border-top:1px solid var(--line);font-family:var(--f-mono);font-size:11px;letter-spacing:.05em;color:var(--ink2);text-align:center}
.foot a{text-decoration:underline}

/* aviso privacidad */
.privacy .sub{font-size:.9rem;line-height:1.8}

/* ── FLOAT WA ── */
.float-wa{position:fixed;right:22px;bottom:96px;width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem;z-index:60;box-shadow:0 8px 24px rgba(37,211,102,.32);transition:transform .2s}
.float-wa:hover{transform:scale(1.07)}

/* ── CHATBOT ── */
.chat-trigger{position:fixed;right:22px;bottom:26px;width:58px;height:58px;border-radius:50%;border:2px solid var(--teal);background:#fff;cursor:pointer;z-index:60;box-shadow:0 8px 24px rgba(14,58,68,.18);padding:0;overflow:visible;transition:transform .2s}
.chat-trigger:hover{transform:translateY(-3px)}
.chat-trigger img{width:100%;height:100%;border-radius:50%;object-fit:cover}
.chat-notif{position:absolute;top:-7px;right:-9px;min-width:30px;height:20px;padding:0 6px;border-radius:999px;background:var(--teal);font-family:var(--f-mono);font-size:9px;font-weight:500;letter-spacing:.04em;color:#fff;display:flex;align-items:center;justify-content:center;border:2px solid var(--paper)}
.chat-panel{position:fixed;right:22px;bottom:96px;width:370px;max-height:540px;background:var(--paper);border:1px solid var(--line);border-radius:6px;display:flex;flex-direction:column;z-index:61;box-shadow:0 24px 60px rgba(14,58,68,.28);overflow:hidden;transform:scale(.9) translateY(20px);opacity:0;pointer-events:none;transform-origin:bottom right;transition:transform .24s cubic-bezier(.34,1.56,.64,1),opacity .2s}
.chat-panel.open{transform:none;opacity:1;pointer-events:all}
.chat-head{padding:14px 16px;background:var(--teal-deep);color:#fff;display:flex;align-items:center;gap:11px;flex-shrink:0}
.chat-head-av{width:34px;height:34px;border-radius:50%;overflow:hidden;border:1.5px solid rgba(255,255,255,.5);flex-shrink:0}
.chat-head-av img{width:100%;height:100%;object-fit:cover}
.chat-head-info strong{display:block;font-size:.88rem}
.chat-head-info span{font-family:var(--f-mono);font-size:10px;color:#a9dbe6}
.chat-close{margin-left:auto;background:none;border:none;color:rgba(255,255,255,.75);font-size:1.1rem;cursor:pointer;padding:4px}
.chat-close:hover{color:#fff}
.chat-msgs{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.chat-msg{display:flex;max-width:92%}
.chat-msg.user{align-self:flex-end}.chat-msg.bot{align-self:flex-start}
.chat-bubble{padding:10px 14px;font-size:.9rem;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.chat-msg.bot .chat-bubble{background:#fff;border:1px solid var(--line);border-radius:3px 14px 14px 14px}
.chat-msg.user .chat-bubble{background:var(--teal);color:#fff;border-radius:14px 3px 14px 14px}
.chat-typing{display:flex;gap:5px;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:3px 14px 14px 14px;width:fit-content}
.chat-typing span{width:7px;height:7px;border-radius:50%;background:var(--ink2);animation:blink 1.3s infinite}
.chat-typing span:nth-child(2){animation-delay:.2s}.chat-typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.2}40%{opacity:1}}
.chat-note{padding:0 14px 6px;font-family:var(--f-mono);font-size:9.5px;color:var(--ink2);text-align:center;flex-shrink:0}
.chat-in-row{padding:10px 12px 12px;border-top:1px solid var(--line);display:flex;gap:8px;align-items:center;flex-shrink:0}
.chat-in{flex:1;background:#fff;border:1px solid var(--line);border-radius:20px;padding:10px 15px;color:var(--ink);font-size:.88rem;font-family:inherit;outline:none;min-width:0}
.chat-in:focus{border-color:var(--teal)}
.chat-send{width:38px;height:38px;border-radius:50%;background:var(--teal);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .15s}
.chat-send:hover:not(:disabled){transform:scale(1.08)}
.chat-send:disabled{opacity:.4;cursor:not-allowed}
@media(max-width:520px){.chat-panel{right:10px;left:10px;width:auto}}