/* HelpBrand: sistema de diseño (Fase 2 build, rev. cinematográfica 10-jul). Ver ../mockups/design-system.md
   Evolución: hero oscuro con movimiento ambiental (azul->teal) + nav adaptativa + escala mayor.
   El CUERPO sigue siendo editorial claro (autoridad B2B). Solo el hero y las bandas de método/footer
   son oscuros: rimo dramático claro<->oscuro (referencia del cliente: Apple/Tesla/brainbow). */
:root{
  --paper:#FCFCFA; --paper-2:#F3F4F1; --ink:#17191B; --ink-soft:#565B60;
  --line:#E4E6E2; --accent:#0090C4; --accent-deep:#00719B; --accent-darker:#005A7D;
  --teal:#38B8BC; --ink-hero:#0B0D0E;
  --serif:'Source Serif 4',Georgia,'Times New Roman',serif;
  --sans:'Archivo',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --wrap:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:1.5rem}
@media(min-width:768px){.wrap{padding-inline:2rem}}
.narrow{max-width:760px}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-0.015em;line-height:1.1;font-optical-sizing:auto;text-wrap:balance}
p{text-wrap:pretty}
em{font-style:italic}
.accent{color:var(--accent-deep)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:100}
.skip:focus{left:.5rem;top:.5rem}

/* ---- Nav (adaptativa: sólida por defecto = failsafe sin JS; .at-top la vuelve transparente sobre hero oscuro) ---- */
.nav{position:sticky;top:0;z-index:50;background:rgba(252,252,250,0.9);backdrop-filter:saturate(180%) blur(8px);-webkit-backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line);transition:background .3s ease,border-color .3s ease}
.nav .row{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-family:var(--serif);font-weight:600;font-size:1.4rem;letter-spacing:-0.02em;color:var(--ink);transition:color .3s ease}
.brand b{color:var(--accent);font-weight:600;transition:color .3s ease}
.nav-links{display:flex;align-items:center;gap:2rem}
.nav-links a{font-size:0.94rem;color:var(--ink-soft);transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-links a.btn{color:#fff}
.btn{font-family:var(--sans);font-weight:600;font-size:0.94rem;background:var(--accent-deep);color:#fff;padding:0.72rem 1.5rem;border-radius:999px;border:0;cursor:pointer;transition:transform .18s cubic-bezier(.16,1,.3,1),background .2s,box-shadow .28s;white-space:nowrap;display:inline-block}
.btn:hover{background:var(--accent-darker);transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,113,155,0.26)}
.btn:active{transform:translateY(1px)}
/* Estado transparente sobre hero oscuro (solo home, solo con JS y al tope) */
/* at-top: fondo OSCURO CASI SÓLIDO (0.88), NO translúcido-puro. Root cause del bug "Help invisible": el texto
   blanco dependía de que hubiera hero oscuro detrás; si el fondo quedaba claro, "Help" (blanco) desaparecía.
   Con 0.88 dark el texto blanco es legible AUNQUE el fondo detrás sea crema (blanco/255 sobre ~rgb(40) = ~11:1).
   Sobre el hero oscuro se funde (mismo color) = efecto melt. + text-shadow como seguro final. */
.nav.at-top{background:rgba(11,13,14,0.88);border-color:rgba(255,255,255,0.07);backdrop-filter:saturate(160%) blur(10px);-webkit-backdrop-filter:saturate(160%) blur(10px)}
.nav.at-top .brand,.nav.at-top .nav-links a,.nav.at-top .menu>summary{text-shadow:0 1px 6px rgba(0,0,0,0.45)}
.nav.at-top .brand{color:#fff}
.nav.at-top .brand b{color:var(--teal)}
.nav.at-top .nav-links a{color:rgba(255,255,255,0.82)}
.nav.at-top .nav-links a:hover{color:#fff}
.nav.at-top .nav-links a.btn{color:#fff;background:rgba(255,255,255,0.14);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.nav.at-top .nav-links a.btn:hover{background:rgba(255,255,255,0.24)}
.nav.at-top .menu>summary{color:#fff}
/* Menu movil accesible (details/summary, sin JS) */
.menu{display:none;position:relative}
.menu>summary{list-style:none;cursor:pointer;font-family:var(--sans);font-weight:600;font-size:0.94rem;color:var(--ink);padding:0.55rem 0.7rem;min-height:44px;display:flex;align-items:center}
.menu>summary::-webkit-details-marker{display:none}
.menu-panel{position:absolute;right:0;top:calc(100% + 0.4rem);background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:0.5rem;display:flex;flex-direction:column;gap:0.15rem;min-width:220px;box-shadow:0 12px 34px rgba(0,0,0,0.14)}
.menu-panel a{padding:0.7rem 0.85rem;color:var(--ink-soft);border-radius:8px}
.menu-panel a:hover{color:var(--ink);background:var(--paper-2)}
.menu-panel a.btn{color:#fff;text-align:center;margin-top:0.3rem}
.menu-panel a.btn:hover{color:#fff}
@media(max-width:900px){.nav-links{display:none}.menu{display:block}}

/* ---- Hero cinematográfico (oscuro, movimiento ambiental de marca) ---- */
/* margin-top:-73px pulls el hero DETRÁS de la nav sticky (72px + 1px borde) para que la nav transparente
   'at-top' quede sobre el hero OSCURO, no sobre una banda crema. El padding-top compensa los 73px. */
.hero{position:relative;overflow:hidden;background:var(--ink-hero);color:#fff;min-height:86vh;display:flex;align-items:center;margin-top:-73px;padding-top:calc(73px + clamp(3rem,7vh,5.5rem));padding-bottom:clamp(4rem,10vh,7.5rem)}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg .blob{position:absolute;border-radius:50%;filter:blur(72px);opacity:0.5;will-change:transform;mix-blend-mode:screen}
.hero-bg .b1{width:52vw;height:52vw;left:-8vw;top:-12vh;background:radial-gradient(circle at 50% 50%,var(--accent),transparent 62%);animation:drift1 26s ease-in-out infinite alternate}
.hero-bg .b2{width:46vw;height:46vw;right:-6vw;top:4vh;background:radial-gradient(circle at 50% 50%,var(--teal),transparent 60%);opacity:0.42;animation:drift2 32s ease-in-out infinite alternate}
.hero-bg .b3{width:40vw;height:40vw;left:24vw;bottom:-18vh;background:radial-gradient(circle at 50% 50%,var(--accent-deep),transparent 64%);opacity:0.4;animation:drift3 30s ease-in-out infinite alternate}
/* Grano sutil + viñeta + scrim para garantizar contraste del texto (WCAG AA sobre cualquier punto del gradiente) */
.hero-grain{position:absolute;inset:0;opacity:0.06;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.hero-scrim{position:absolute;inset:0;background:radial-gradient(120% 100% at 20% 45%,rgba(11,13,14,0.72) 0%,rgba(11,13,14,0.42) 45%,rgba(11,13,14,0.66) 100%),linear-gradient(to bottom,rgba(11,13,14,0.2),rgba(11,13,14,0) 30%,rgba(11,13,14,0.55) 100%)}
.hero-inner{position:relative;z-index:2;width:100%}
.hero .kicker{font-size:0.82rem;letter-spacing:0.16em;text-transform:uppercase;color:rgba(255,255,255,0.72);margin-bottom:1.8rem;display:flex;align-items:center;gap:0.7rem}
.hero .kicker::before{content:"";width:2rem;height:1px;background:var(--teal);display:inline-block}
.hero h1{font-size:clamp(2.4rem,5.2vw,4.2rem);max-width:24ch;color:#fff;line-height:1.06;letter-spacing:-0.02em}
.hero h1 em{color:var(--teal);font-style:italic}
.hero p.sub{font-size:clamp(1.08rem,1.7vw,1.3rem);color:rgba(255,255,255,0.82);max-width:54ch;margin-top:1.8rem;line-height:1.55}
.hero .cta-row{margin-top:2.6rem;display:flex;gap:1.4rem;align-items:center;flex-wrap:wrap}
.hero .cta-row .btn{background:var(--accent-deep);padding:0.85rem 1.8rem;font-size:1rem}
.hero .cta-row .btn:hover{background:var(--accent-darker)}
.hero .cta-row .secondary{font-size:0.98rem;color:rgba(255,255,255,0.82);text-decoration:underline;text-decoration-color:rgba(255,255,255,0.28);text-decoration-thickness:1px;text-underline-offset:4px;padding-block:0.7rem;transition:color .2s,text-decoration-color .2s}
.hero .cta-row .secondary:hover{color:#fff;text-decoration-color:var(--teal)}
@keyframes drift1{0%{transform:translate(0,0) scale(1)}100%{transform:translate(6vw,7vh) scale(1.12)}}
@keyframes drift2{0%{transform:translate(0,0) scale(1)}100%{transform:translate(-5vw,5vh) scale(1.08)}}
@keyframes drift3{0%{transform:translate(0,0) scale(1)}100%{transform:translate(4vw,-6vh) scale(1.1)}}

/* Authority strip */
.strip{border-bottom:1px solid var(--line);background:var(--paper-2)}
.strip .row{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;padding-block:2.6rem}
.strip .item .n{font-family:var(--serif);font-size:2rem;font-weight:600;color:var(--ink)}
.strip .item .l{font-size:0.92rem;color:var(--ink-soft);margin-top:0.3rem}
@media(max-width:680px){.strip .row{grid-template-columns:1fr;gap:1.5rem}}

/* Sections */
.sec{padding-block:clamp(4.5rem,9vw,7.5rem)}
.sec-head{max-width:62ch}
.sec-head h2{font-size:clamp(1.8rem,3.6vw,2.8rem)}
.sec-head p{color:var(--ink-soft);margin-top:1rem;font-size:1.08rem}
.bt{border-top:1px solid var(--line)}

/* Page hero (interiores claros: portafolio, clientes, caso) */
.page-hero{padding-top:clamp(3rem,7vw,5rem);padding-bottom:clamp(2rem,4vw,3rem)}
.page-hero .kicker{font-size:0.82rem;letter-spacing:0.15em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:1.2rem;display:flex;align-items:center;gap:0.7rem}
.page-hero .kicker::before{content:"";width:1.8rem;height:1px;background:var(--accent);display:inline-block}
.page-hero h1{font-size:clamp(2.2rem,5.2vw,4rem);max-width:18ch;letter-spacing:-0.02em}
.page-hero .lede{font-size:clamp(1.1rem,1.7vw,1.3rem);color:var(--ink-soft);margin-top:1.5rem;max-width:60ch}
.crumb{font-size:0.88rem;color:var(--ink-soft);padding-top:2rem}
.crumb a:hover{color:var(--ink)}

/* Servicios (asimetrico, ponderado) */
.services{display:grid;grid-template-columns:1.4fr 1fr;gap:3.5rem;margin-top:3rem;align-items:start}
@media(max-width:860px){.services{grid-template-columns:1fr;gap:2.5rem}}
.svc-lead{border-top:2px solid var(--accent);padding-top:1.4rem}
.svc-lead h3{font-size:1.7rem}
.svc-lead p{color:var(--ink-soft);margin-top:0.8rem;font-size:1.05rem;max-width:46ch}
.svc-list{display:flex;flex-direction:column}
.svc-item{border-top:1px solid var(--line);padding-block:1.3rem}
.svc-item:last-child{border-bottom:1px solid var(--line)}
.svc-item h4{font-family:var(--sans);font-weight:600;font-size:1.05rem}
.svc-item p{color:var(--ink-soft);font-size:0.96rem;margin-top:0.25rem}

/* Metodo / criterio (banda oscura) */
.method{background:var(--ink);color:var(--paper)}
.method h2{color:var(--paper)}
.method .sec-head p{color:#B9BDC2}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2.5rem;margin-top:3rem}
@media(max-width:860px){.method-grid{grid-template-columns:1fr;gap:2rem}}
.m-item{border-top:1px solid #34383C;padding-top:1.2rem}
.m-item h3{font-size:1.2rem;color:var(--paper);font-family:var(--sans);font-weight:600}
.m-item p{color:#B9BDC2;font-size:0.98rem;margin-top:0.6rem}

/* Banda ANAC (credencial, tratamiento tipografico) */
.anac{border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:1rem;display:grid;grid-template-columns:1.1fr 1fr}
@media(max-width:860px){.anac{grid-template-columns:1fr}}
.anac .txt{padding:clamp(2rem,4vw,3.5rem)}
.anac .txt .tag{font-size:0.82rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:1rem;display:block}
.anac .txt h2{font-size:clamp(1.6rem,3vw,2.3rem)}
.anac .txt p{color:var(--ink-soft);margin-top:1rem;font-size:1.02rem}
.anac .txt .link{display:inline-block;margin-top:1.5rem;color:var(--accent-deep);font-weight:600;border-bottom:1px solid var(--line);padding-bottom:2px}
.anac .txt .link:hover{border-color:var(--accent)}
.anac .aside{background:var(--paper-2);padding:clamp(2rem,4vw,3.5rem);display:flex;flex-direction:column;justify-content:center;gap:1.4rem;border-left:1px solid var(--line)}
@media(max-width:860px){.anac .aside{border-left:0;border-top:1px solid var(--line)}}
.anac .stat .big{font-family:var(--serif);font-size:2.7rem;font-weight:600;line-height:1;color:var(--ink)}
.anac .stat .cap{font-size:0.92rem;color:var(--ink-soft);margin-top:0.4rem}

/* Clientes / muro de relaciones (placeholder tasteful) */
.logos{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;margin-top:2.5rem}
@media(max-width:860px){.logos{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.logos{grid-template-columns:repeat(2,1fr)}}
.logo-cell{aspect-ratio:3/2;border:1px solid var(--line);border-radius:12px;background:var(--paper-2);display:flex;align-items:center;justify-content:center;color:var(--ink-soft);font-family:var(--serif);font-size:0.9rem;text-align:center;padding:0 1rem;transition:border-color .2s,background .2s}
.logo-cell:hover{border-color:var(--accent);background:#fff}
.logo-cell .mono{opacity:0.35;font-size:1.6rem;letter-spacing:0.02em}
.note{font-size:0.86rem;color:var(--ink-soft);margin-top:1.6rem;font-style:italic;max-width:60ch}

/* Portafolio: grid de categorias */
.pf-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-top:3rem}
@media(max-width:820px){.pf-grid{grid-template-columns:1fr}}
.pf-cat{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;display:flex;flex-direction:column;transition:border-color .2s,box-shadow .3s,transform .3s}
.pf-cat:hover{border-color:var(--accent);box-shadow:0 18px 40px rgba(23,25,27,0.07);transform:translateY(-3px)}
.pf-cat .thumb{aspect-ratio:16/10;position:relative;background:linear-gradient(135deg,var(--paper-2),#EAECE8);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);overflow:hidden}
.pf-cat .thumb .ico{width:56px;height:56px;color:var(--accent);opacity:0.55}
.pf-cat .thumb .cnt{position:absolute;top:0.9rem;right:1rem;font-family:var(--sans);font-size:0.78rem;font-weight:600;color:var(--ink-soft);background:rgba(252,252,250,0.85);border:1px solid var(--line);border-radius:999px;padding:0.25rem 0.7rem}
.pf-cat .body{padding:1.6rem 1.8rem 1.9rem}
.pf-cat h3{font-size:1.35rem}
.pf-cat p{color:var(--ink-soft);font-size:0.98rem;margin-top:0.55rem}
.pf-cat .kinds{margin-top:1rem;font-size:0.84rem;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:0.9rem}

/* Trabajo seleccionado (piezas reales de clientes verificados en facturacion) */
.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.6rem}
@media(max-width:900px){.work-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.work-grid{grid-template-columns:1fr}}
.work-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;display:flex;flex-direction:column;transition:border-color .2s,box-shadow .3s,transform .3s}
.work-card:hover{border-color:var(--accent);box-shadow:0 18px 40px rgba(23,25,27,0.07);transform:translateY(-3px)}
.work-card .shot{aspect-ratio:4/3;background:var(--ink-hero);border-bottom:1px solid var(--line);overflow:hidden}
.work-card .shot img{width:100%;height:100%;object-fit:cover;display:block}
.work-card .cap{padding:1rem 1.2rem 1.2rem}
.work-card .cap .c-name{font-family:var(--serif);font-weight:600;font-size:1.08rem;color:var(--ink);line-height:1.25}
.work-card .cap .c-kind{font-size:0.8rem;letter-spacing:0.06em;text-transform:uppercase;color:var(--ink-soft);margin-top:0.35rem}

/* Featured (caso ANAC dentro de portafolio) */
.feature{margin-top:3rem;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--ink);color:var(--paper);display:grid;grid-template-columns:1.2fr 1fr}
@media(max-width:860px){.feature{grid-template-columns:1fr}}
.feature .f-txt{padding:clamp(2.2rem,4vw,3.6rem)}
.feature .f-txt .tag{font-size:0.8rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--teal);margin-bottom:1.1rem;display:block}
.feature .f-txt h2{color:#fff;font-size:clamp(1.7rem,3vw,2.4rem)}
.feature .f-txt p{color:#C4C8CC;margin-top:1rem;font-size:1.04rem;max-width:48ch}
.feature .f-aside{background:#111315;display:flex;flex-direction:column;justify-content:center;gap:1.6rem;padding:clamp(2.2rem,4vw,3.6rem);border-left:1px solid #2b2f33}
@media(max-width:860px){.feature .f-aside{border-left:0;border-top:1px solid #2b2f33}}
.feature .f-aside .stat .big{font-family:var(--serif);font-size:2.6rem;color:#fff;line-height:1}
.feature .f-aside .stat .cap{color:#9BA1A6;font-size:0.9rem;margin-top:0.35rem}

/* Contacto */
.contact{background:var(--paper-2);border-top:1px solid var(--line)}
.contact .grid{display:grid;grid-template-columns:1.2fr 1fr;gap:3rem;align-items:center}
@media(max-width:760px){.contact .grid{grid-template-columns:1fr;gap:2rem}}
.contact h2{font-size:clamp(1.8rem,3.4vw,2.7rem)}
.contact p{color:var(--ink-soft);margin-top:1rem;max-width:44ch}
.mail{font-family:var(--serif);font-size:1.5rem;color:var(--accent-deep);margin-top:1.5rem;display:inline-block;border-bottom:1px solid var(--line);padding:5px 0 4px}
.mail:hover{border-color:var(--accent)}

/* Footer */
footer{background:var(--ink);color:#B9BDC2;padding-block:3.2rem;font-size:0.92rem}
footer .g{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;align-items:flex-start}
footer .brand{color:var(--paper);font-size:1.25rem}
footer a{color:#B9BDC2;transition:color .2s}
footer a:hover{color:var(--paper)}
footer .muted{color:#949AA0}
footer p+p{margin-top:0.4rem}

/* Director */
.dhead{display:grid;grid-template-columns:1fr 1.3fr;gap:3.5rem;align-items:center;padding-block:clamp(2.5rem,6vw,4.5rem)}
@media(max-width:820px){.dhead{grid-template-columns:1fr;gap:2rem}}
.portrait{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;aspect-ratio:4/5;position:relative;overflow:hidden}
.portrait .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);font-size:0.86rem;text-align:center;padding:2rem}
.dhead .role{font-size:0.82rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:1.2rem}
.dhead h1{font-size:clamp(2.1rem,4.6vw,3.4rem)}
.dhead .lede{font-size:clamp(1.1rem,1.7vw,1.3rem);color:var(--ink-soft);margin-top:1.4rem;max-width:46ch}
.prose{padding-block:clamp(3rem,7vw,5rem);border-top:1px solid var(--line)}
.prose h2{font-size:clamp(1.5rem,2.8vw,2rem);margin-bottom:1.2rem}
.prose p{font-size:1.08rem;color:#2b2e31;margin-bottom:1.2rem;max-width:65ch}
.prose .todo{font-size:0.9rem;color:var(--ink-soft);font-style:italic;background:var(--paper-2);border-left:3px solid var(--accent);padding:0.8rem 1rem;border-radius:0 6px 6px 0;max-width:65ch}
.cred{background:var(--ink);color:var(--paper)}
.cred h2{color:var(--paper);font-size:clamp(1.5rem,2.8vw,2rem)}
.cred .list{margin-top:2.2rem;display:flex;flex-direction:column}
.cred .c-item{border-top:1px solid #34383C;padding-block:1.4rem;display:grid;grid-template-columns:1fr 2.2fr;gap:2rem}
.cred .c-item:last-child{border-bottom:1px solid #34383C}
@media(max-width:680px){.cred .c-item{grid-template-columns:1fr;gap:0.4rem}}
.cred .c-item .k{font-family:var(--serif);font-size:1.15rem;color:var(--paper)}
.cred .c-item .v{color:#B9BDC2;font-size:1rem}
.cta-band{background:var(--paper-2);border-top:1px solid var(--line)}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem);max-width:22ch}
.cta-band p{color:var(--ink-soft);margin-top:1rem;max-width:44ch}

/* Caso (articulo largo: caso ANAC) */
.case-hero{background:var(--ink-hero);color:#fff;position:relative;overflow:hidden;padding-block:clamp(3.5rem,8vw,6rem)}
.case-hero .kicker{color:var(--teal)}
.case-hero h1{color:#fff;font-size:clamp(2.1rem,4.8vw,3.6rem);max-width:20ch}
.case-hero .lede{color:rgba(255,255,255,0.82);margin-top:1.4rem;max-width:60ch;font-size:clamp(1.05rem,1.6vw,1.25rem)}
.answer{background:var(--paper-2);border-left:3px solid var(--accent);padding:clamp(1.4rem,3vw,2rem);border-radius:0 10px 10px 0;font-size:1.15rem;color:#2b2e31;max-width:70ch;margin-top:2.5rem}
.case-body{padding-block:clamp(3rem,7vw,5rem)}
.case-body h2{font-size:clamp(1.5rem,2.8vw,2rem);margin-bottom:1.1rem;margin-top:2.5rem}
.case-body h2:first-child{margin-top:0}
.case-body p{font-size:1.08rem;color:#2b2e31;margin-bottom:1.1rem;max-width:66ch}
.case-body ul{max-width:66ch;margin:0 0 1.4rem 0;list-style:none}
.case-body ul li{position:relative;padding-left:1.5rem;margin-bottom:0.7rem;color:#2b2e31;font-size:1.05rem}
.case-body ul li::before{content:"";position:absolute;left:0;top:0.62em;width:7px;height:7px;border-radius:50%;background:var(--accent)}

/* ---- Reveal (motion 3, honra reduced-motion) ---- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   ELEVACIÓN PREMIUM (11-jul): craft sobre el sistema base.
   Preserve-redesign: NO cambia tokens de marca ni IA; sube
   tipografía, motion motivado y profundidad cinematográfica.
   Todo reduced-motion safe; el scroll-driven es progressive enh.
   ============================================================ */

/* Entrada cinematográfica escalonada del hero (reusa el reveal base) */
.hero .reveal{transition-duration:.95s}
.hero .kicker.reveal{transition-delay:.05s}
.hero h1.reveal{transition-delay:.15s}
.hero .sub.reveal{transition-delay:.28s}
.hero .cta-row.reveal{transition-delay:.40s}

/* Profundidad cinematográfica en las bandas oscuras (rima con el hero, no aplana el negro) */
.method{position:relative;overflow:hidden}
.method>.wrap{position:relative;z-index:1}
.method::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(90% 120% at 88% -10%,rgba(0,144,196,0.16),transparent 58%),radial-gradient(70% 90% at 0% 112%,rgba(56,184,188,0.10),transparent 60%)}
footer{position:relative;overflow:hidden}
footer::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(62% 130% at 100% 0%,rgba(0,144,196,0.10),transparent 62%)}
footer .g{position:relative;z-index:1}

/* Micro-interacción motivada: subrayado que crece en la nav (feedback de hover) */
.nav-links a:not(.btn){position:relative}
.nav-links a:not(.btn)::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:currentColor;opacity:.55;transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.16,1,.3,1)}
.nav-links a:not(.btn):hover::after{transform:scaleX(1)}

/* Botón fantasma (secciones claras): CTA secundaria hacia el trabajo real */
.btn.ghost{background:transparent;color:var(--accent-deep);border:1px solid var(--accent-deep);box-shadow:none}
.btn.ghost:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,113,155,0.20)}
.client-cta{display:flex;gap:1.8rem;align-items:center;flex-wrap:wrap;margin-top:2.6rem}
.link-quiet{color:var(--ink-soft);border-bottom:1px solid var(--line);padding-bottom:2px;transition:color .2s,border-color .2s}
.link-quiet:hover{color:var(--ink);border-color:var(--accent)}

/* Capa scroll-driven (progressive enhancement; la base sigue siendo el reveal JS + blobs).
   Solo donde el navegador soporta animation-timeline y sin reduced-motion. */
@media (prefers-reduced-motion:no-preference){
  @supports (animation-timeline:view()){
    .hero-bg{animation:heroParallax linear both;animation-timeline:view();animation-range:exit 0% exit 100%}
    .hero-inner{animation:heroLift linear both;animation-timeline:view();animation-range:exit 0% exit 88%}
    .strip .item{animation:riseIn linear both;animation-timeline:view();animation-range:entry 0% cover 20%}
  }
}
@keyframes heroParallax{to{transform:translateY(9%) scale(1.05);opacity:.7}}
@keyframes heroLift{to{transform:translateY(-6%);opacity:.5}}
/* Rise SIN opacity: aunque el timeline no evalúe, la banda de autoridad nunca queda invisible (failsafe del build) */
@keyframes riseIn{from{transform:translateY(24px)}to{transform:none}}

/* ============================================================
   CUERPO CLARO CON VIDA (11-jul, pasada 2): profundidad, ritmo,
   color y materialidad en el cuerpo claro. Preserve: tokens de
   marca, IA y copy intactos. Todo reversible en este bloque.
   Familias nuevas: bento de servicios · manifiesto tipográfico ·
   ANAC elevado con aside oscuro · momento "+40" · isla oscura CTA.
   ============================================================ */

/* Banda de autoridad: reglas de marca en degradado + numeros con mas cuerpo */
.strip{background:linear-gradient(180deg,#FFFFFF 0%,var(--paper-2) 100%)}
.strip .row{gap:2.5rem;padding-block:3rem}
.strip .item{padding-left:1.4rem;border-left:2px solid var(--accent);border-image:linear-gradient(180deg,var(--accent),var(--teal)) 1}
.strip .item .n{font-size:2.3rem;letter-spacing:-0.02em}

/* Servicios: bento asimetrico (celda lider oscura + 4 celdas, 1 tintada) */
.svc-bento{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:1.2rem;margin-top:3rem}
.svc-bento .b-lead{grid-row:1/3;grid-column:1}
.svc-bento .b-cell{border:1px solid var(--line);border-radius:16px;background:#fff;padding:1.7rem 1.8rem 1.9rem;box-shadow:0 2px 12px rgba(23,25,27,0.04);transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s,border-color .25s,opacity .7s ease}
.svc-bento .b-cell:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(0,113,155,0.12);border-color:rgba(0,144,196,0.4)}
.svc-bento .b-cell h4{font-family:var(--sans);font-weight:600;font-size:1.08rem}
.svc-bento .b-cell p{color:var(--ink-soft);font-size:0.97rem;margin-top:0.5rem}
.svc-bento .b-tint{background:linear-gradient(160deg,#F2F9FC,#E9F3F7);border-color:rgba(0,144,196,0.16)}
.svc-bento .b-lead{background:linear-gradient(155deg,#0E1114 0%,#16211F 100%);border-color:rgba(255,255,255,0.07);position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;min-height:400px}
.svc-bento .b-lead::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(70% 90% at 90% 0%,rgba(0,144,196,0.22),transparent 62%),radial-gradient(52% 70% at 0% 100%,rgba(56,184,188,0.14),transparent 60%)}
.svc-bento .b-lead>*{position:relative}
.svc-bento .b-lead .k{font-size:0.78rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--teal);margin-bottom:0.9rem}
.svc-bento .b-lead h3{color:#fff;font-size:clamp(1.6rem,2.6vw,2.1rem)}
.svc-bento .b-lead p:not(.k){color:rgba(255,255,255,0.78);margin-top:0.9rem;font-size:1.02rem;max-width:44ch}
.svc-bento .b-lead:hover{border-color:rgba(56,184,188,0.4);box-shadow:0 22px 48px rgba(11,13,14,0.28)}
@media(max-width:900px){.svc-bento{grid-template-columns:1fr 1fr}.svc-bento .b-lead{grid-row:auto;grid-column:1/-1;min-height:260px}}
@media(max-width:560px){.svc-bento{grid-template-columns:1fr}}

/* Metodo: la cabecera se vuelve momento tipografico (manifiesto serif) */
.method .sec-head{max-width:none}
.method .sec-head h2{font-family:var(--sans);font-weight:600;font-size:1.15rem;letter-spacing:0;color:rgba(255,255,255,0.62)}
.method .sec-head p{font-family:var(--serif);font-size:clamp(1.5rem,3.4vw,2.6rem);line-height:1.25;color:var(--paper);margin-top:1.1rem;max-width:24ch;letter-spacing:-0.01em;text-wrap:balance}
.method .sec-head p em{color:var(--teal);font-style:italic}
.method-grid .m-item.reveal:nth-child(2){transition-delay:.09s}
.method-grid .m-item.reveal:nth-child(3){transition-delay:.18s}

/* ANAC: la credencial se eleva (sombra tintada) y su aside se vuelve oscuro, rima con el hero */
.anac{border-radius:16px;box-shadow:0 28px 64px rgba(0,113,155,0.09),0 2px 12px rgba(23,25,27,0.05)}
.anac .aside{background:linear-gradient(160deg,#0B0D0E,#12191C);border-left:0;position:relative;overflow:hidden}
.anac .aside::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(75% 95% at 100% 0%,rgba(0,144,196,0.22),transparent 60%),radial-gradient(55% 75% at 0% 100%,rgba(56,184,188,0.13),transparent 58%)}
.anac .aside>*{position:relative}
.anac .stat .big{color:#fff;font-size:clamp(2.6rem,4.5vw,3.4rem)}
.anac .stat .cap{color:rgba(255,255,255,0.72)}
@media(max-width:860px){.anac .aside{border-top:0}}

/* Clientes (home): momento editorial asimetrico con el "+40" en display */
#clientes{background:radial-gradient(55% 90% at 100% 8%,rgba(56,184,188,0.06),transparent 60%),radial-gradient(45% 70% at 0% 100%,rgba(0,144,196,0.05),transparent 55%)}
.clients-moment{display:grid;grid-template-columns:auto 1fr;gap:clamp(2.2rem,6vw,5.5rem);align-items:center}
.clients-moment .nbig{font-family:var(--serif);font-weight:600;font-size:clamp(4.6rem,11vw,8rem);line-height:0.95;letter-spacing:-0.04em;color:var(--accent-deep);display:block}
.clients-moment .ncap{display:block;margin-top:0.9rem;font-size:0.95rem;color:var(--ink-soft);line-height:1.45}
.clients-moment h2{font-size:clamp(1.7rem,3.2vw,2.5rem)}
.clients-moment .lead-p{color:var(--ink-soft);margin-top:1rem;font-size:1.06rem;max-width:56ch}
@media(max-width:760px){.clients-moment{grid-template-columns:1fr;gap:2rem}}

/* Isla oscura de CTA (contacto en home + cta-band interiores): presencia real, glow de marca */
.cta-panel{position:relative;overflow:hidden;background:linear-gradient(140deg,#0B0D0E 0%,#101619 58%,#0D1B1E 100%);border:1px solid rgba(255,255,255,0.08);border-radius:16px;padding:clamp(2.2rem,5vw,3.8rem);box-shadow:0 30px 80px rgba(11,13,14,0.22)}
.cta-panel::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(60% 95% at 88% 0%,rgba(0,144,196,0.24),transparent 60%),radial-gradient(45% 70% at 5% 100%,rgba(56,184,188,0.15),transparent 58%)}
.cta-panel>*{position:relative;z-index:1}
.cta-panel h2{color:#fff}
.cta-panel p{color:rgba(255,255,255,0.78)}
.cta-panel .btn{background:#fff;color:var(--accent-darker)}
.cta-panel .btn:hover{background:#E8F3F7;color:var(--accent-darker);box-shadow:0 12px 30px rgba(0,0,0,0.3)}
.cta-panel .mail{color:var(--teal);border-bottom-color:rgba(255,255,255,0.18)}
.cta-panel .mail:hover{border-bottom-color:var(--teal)}
.cta-panel .form-note{font-size:0.92rem;color:rgba(255,255,255,0.66);font-style:italic}

/* Portafolio: los thumbs de disciplina dejan el gris plano (tintes de marca rotados) */
.pf-cat:nth-child(3n+1) .thumb{background:linear-gradient(140deg,#EDF6FA,#DCEBF2)}
.pf-cat:nth-child(3n+2) .thumb{background:linear-gradient(140deg,#ECF7F6,#DDF0EE)}
.pf-cat:nth-child(3n) .thumb{background:linear-gradient(140deg,#F3F4F1,#E6E9E3)}
.pf-cat .thumb .ico{opacity:0.75}

/* Muro de logos (clientes/): celdas reservadas con trama sutil, sin glifo vacio */
.logo-cell{background-image:repeating-linear-gradient(135deg,transparent 0 11px,rgba(23,25,27,0.04) 11px 12px)}

/* Placeholders de retrato/arte: trama editorial + caption serif */
.portrait{background-image:repeating-linear-gradient(135deg,transparent 0 11px,rgba(23,25,27,0.03) 11px 12px)}
.portrait .ph{font-family:var(--serif);font-style:italic;font-size:0.95rem}

/* Form de contacto medido (sobre la isla oscura .cta-panel) */
.cform{display:flex;flex-direction:column;gap:1rem}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:0.9rem}
@media(max-width:520px){.cf-row{grid-template-columns:1fr}}
.cf-field{display:flex;flex-direction:column;gap:0.4rem}
.cf-lab{font-family:var(--sans);font-size:0.86rem;font-weight:600;color:rgba(255,255,255,0.9)}
.cf-lab .cf-opt{font-weight:400;color:rgba(255,255,255,0.6)}
.cf-inp{width:100%;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.2);border-radius:10px;padding:0.7rem 0.85rem;min-height:46px;color:#fff;font-family:var(--sans);font-size:1rem;transition:border-color .18s,background .18s}
.cf-inp::placeholder{color:rgba(255,255,255,0.5)}
.cf-inp:focus{outline:none;border-color:var(--teal);background:rgba(255,255,255,0.1)}
.cf-inp.cf-bad{border-color:#F08A8A}
.cf-ta{resize:vertical;min-height:88px;line-height:1.5}
.cf-chips{display:flex;flex-wrap:wrap;gap:0.5rem}
.cf-chip{cursor:pointer;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.2);border-radius:999px;padding:0.6rem 1rem;min-height:44px;font-family:var(--sans);font-size:0.86rem;color:rgba(255,255,255,0.82);transition:border-color .18s,background .18s,color .18s}
.cf-chip:hover{border-color:var(--teal);color:#fff}
.cf-chip.sel{border-color:var(--teal);background:rgba(56,184,188,0.16);color:#fff}
.cf-err{display:none;color:#F3B0B0;font-size:0.86rem}
.cf-err.on{display:block}
.cf-submit{margin-top:0.3rem;align-self:flex-start;min-height:48px;padding-block:0.8rem}
.cf-submit:disabled{opacity:0.6;cursor:default;transform:none}
.cf-done{text-align:left}
.cf-done .cf-ring{width:56px;height:56px;border-radius:50%;background:rgba(56,184,188,0.14);border:1px solid rgba(56,184,188,0.4);display:flex;align-items:center;justify-content:center;color:var(--teal);margin-bottom:1rem}
.cf-done .cf-ring svg{width:28px;height:28px}
.cf-done h3{color:#fff;font-size:1.35rem}
.cf-done p{color:rgba(255,255,255,0.78);margin-top:0.6rem;max-width:42ch}

/* Touch target del link secundario de clientes (44px+); subrayado por text-decoration para no despegarlo */
.link-quiet{border-bottom:0;text-decoration:underline;text-decoration-color:var(--line);text-decoration-thickness:1px;text-underline-offset:4px;padding-block:0.65rem;padding-bottom:0.65rem;display:inline-block;transition:color .2s,text-decoration-color .2s}
.link-quiet:hover{color:var(--ink);text-decoration-color:var(--accent)}

/* Banda de trayectoria del director: glow que rima con metodo/footer */
.cred{position:relative;overflow:hidden}
.cred::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(70% 110% at 92% -8%,rgba(0,144,196,0.14),transparent 58%)}
.cred>.wrap{position:relative}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto}
  .hero-bg,.hero-bg .blob,.hero-inner,.strip .item{animation:none!important}
}