/* T&S Consultores — sistema visual
   Layout: firma clásica. Cabecera fija en tinta musgo, portadas fotográficas de Santiago teñidas,
   cuerpo en papel crema con columnas de práctica y subíndice lateral, pie de cuatro columnas. */
:root{
  --ink:#1b2314;        /* tinta musgo profunda: cabecera, pie, texto sobre papel */
  --moss:#3d4a30;       /* verde musgo de marca */
  --moss-deep:#2a3420;
  --paper:#f4eedf;      /* papel crema: fondo de lectura */
  --paper-2:#ebe3cf;    /* papel sombreado: bandas alternas */
  --cream:#efe6cf;      /* texto sobre fondos oscuros */
  --cream-soft:rgba(239,230,207,.74);
  --brass:#c9ab6a;      /* acento sobre oscuro */
  --brass-ink:#8a6d2f;  /* acento legible sobre papel */
  --rule:rgba(27,35,20,.14);
  --rule-dark:rgba(239,230,207,.16);
  --text:#2a3122;
  --text-soft:#5a6150;
  --f-display:"DM Serif Display",Georgia,"Times New Roman",serif;
  --f-body:"DM Sans","Helvetica Neue",Arial,sans-serif;
  --s-xs:.75rem; --s-sm:.92rem; --s-md:1.03rem; --s-lg:1.28rem;
  --s-xl:clamp(2rem,3.6vw,2.8rem); --s-2xl:clamp(2.6rem,5.6vw,4.6rem);
  --header-h:76px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 24px)}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--f-body);font-size:var(--s-md);line-height:1.68;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
.wrap{max-width:1240px;margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:400;margin:0;line-height:1.1;text-wrap:balance;color:var(--ink)}
h1 em,h2 em,h3 em{font-style:italic;color:var(--brass-ink)}
.dark h1,.dark h2,.dark h3,.dark h4{color:var(--cream)}
.dark h1 em,.dark h2 em,.dark h3 em{color:var(--brass)}
.amp{font-family:var(--f-display);font-style:normal;color:var(--brass)}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:var(--s-xs);letter-spacing:.22em;text-transform:uppercase;color:var(--brass-ink);font-weight:600}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor}
.dark .eyebrow{color:var(--brass)}
section{padding-block:clamp(72px,9vw,120px)}
.sec-title{font-size:var(--s-xl);margin-top:18px}
.lead{font-size:var(--s-lg);line-height:1.55;color:var(--text-soft);max-width:60ch;font-weight:300}
.dark .lead{color:var(--cream-soft)}
.dark{background:var(--ink);color:var(--cream)}
.band{background:var(--paper-2)}

/* Fotografía teñida */
.photo{position:relative;overflow:hidden;background:var(--moss-deep)}
.photo img{width:100%;height:100%;object-fit:cover;filter:saturate(.7) contrast(1.05)}
.photo::after{content:"";position:absolute;inset:0;background:var(--moss);mix-blend-mode:multiply;opacity:.5;pointer-events:none}

/* Cabecera */
.site-header{position:sticky;top:0;z-index:50;background:var(--ink);color:var(--cream);border-bottom:1px solid var(--rule-dark)}
.site-header .wrap{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--cream)}
.logo b{font-family:var(--f-display);font-weight:400;font-size:1.85rem;line-height:1;letter-spacing:.01em}
.logo > span{display:block;font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;color:var(--cream-soft);border-left:1px solid var(--rule-dark);padding-left:14px;line-height:1.6}
.nav{display:flex;align-items:center;gap:30px}
.nav a{text-decoration:none;font-size:.88rem;color:var(--cream-soft);letter-spacing:.02em;padding-block:6px;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.nav a:hover{color:var(--cream)}
.nav a[aria-current="page"]{color:var(--cream);border-bottom-color:var(--brass)}
.nav a.cta{border:1px solid var(--brass);padding:9px 18px;color:var(--brass)}
.nav a.cta:hover,.nav a.cta[aria-current="page"]{background:var(--brass);color:var(--ink)}
.menu-btn{display:none;background:none;border:1px solid var(--rule-dark);color:var(--cream);font:500 .8rem/1 var(--f-body);letter-spacing:.14em;text-transform:uppercase;padding:10px 14px;cursor:pointer}

/* Portada principal */
.hero{position:relative;min-height:min(86vh,820px);display:flex;align-items:flex-end;padding:0;color:var(--cream)}
.hero .photo{position:absolute;inset:0}
.hero .photo::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(27,35,20,.94) 0%,rgba(27,35,20,.7) 46%,rgba(27,35,20,.15) 100%),linear-gradient(0deg,rgba(27,35,20,.85) 0%,transparent 45%)}
.hero-in{position:relative;z-index:2;width:100%;padding-block:120px 72px}
.hero h1{font-size:var(--s-2xl);max-width:15ch;margin-top:22px;color:var(--cream)}
.hero h1 em{color:var(--brass)}
.hero .lead{color:var(--cream-soft);margin-top:24px;max-width:52ch}
.btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;font-size:.9rem;font-weight:500;text-decoration:none;letter-spacing:.03em;transition:background .25s,color .25s,border-color .25s;border:1px solid transparent}
.btn.solid{background:var(--brass);color:var(--ink)}
.btn.solid:hover{background:var(--cream)}
.btn.ghost{border-color:var(--rule-dark);color:var(--cream)}
.btn.ghost:hover{border-color:var(--brass);color:var(--brass)}
.btn.ink{background:var(--ink);color:var(--cream)}
.btn.ink:hover{background:var(--moss)}
.btn.line{border-color:var(--ink);color:var(--ink)}
.btn.line:hover{background:var(--ink);color:var(--cream)}
.hero-areas{display:flex;flex-wrap:wrap;gap:0;margin-top:64px;border-top:1px solid var(--rule-dark)}
.hero-areas a{flex:1 1 200px;padding:20px 24px 4px 0;text-decoration:none;color:var(--cream-soft);font-size:var(--s-sm);display:flex;flex-direction:column;gap:4px;transition:color .2s}
.hero-areas a b{font-family:var(--f-display);font-weight:400;font-size:1.25rem;color:var(--cream)}
.hero-areas a:hover b{color:var(--brass)}

/* Portada interior */
.page-hero{position:relative;padding:0;color:var(--cream);min-height:420px;display:flex;align-items:flex-end}
.page-hero .photo{position:absolute;inset:0}
.page-hero .photo::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(27,35,20,.95) 0%,rgba(27,35,20,.72) 55%,rgba(27,35,20,.3) 100%)}
.page-hero .wrap{position:relative;z-index:2;width:100%;padding-block:96px 56px}
.crumbs{font-size:var(--s-xs);letter-spacing:.14em;text-transform:uppercase;color:var(--cream-soft)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--brass)}
.page-hero h1{font-size:var(--s-2xl);margin-top:20px;max-width:18ch;color:var(--cream)}
.page-hero h1 em{color:var(--brass)}
.page-hero .lead{color:var(--cream-soft);margin-top:20px}
.lead-partner{display:inline-flex;align-items:center;gap:14px;margin-top:30px;padding:10px 18px 10px 10px;border:1px solid var(--rule-dark);text-decoration:none}
.lead-partner .ini{width:40px;height:40px;font-size:1rem}
.lead-partner small{display:block;font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--brass)}
.lead-partner strong{font-weight:500;font-size:.95rem;color:var(--cream)}

.ini{width:76px;height:76px;border-radius:50%;border:1px solid var(--brass);display:grid;place-items:center;font-family:var(--f-display);font-size:1.5rem;color:var(--brass);flex:none}

/* Introducción */
.intro{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,6vw,96px);align-items:start}
.intro p{margin:0 0 18px;max-width:62ch}
.intro .big{font-family:var(--f-display);font-size:var(--s-lg);line-height:1.45;color:var(--ink)}

/* Áreas de práctica (inicio) */
.practices{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:52px}
.practice{background:var(--paper);display:grid;grid-template-columns:180px 1fr;min-width:0;text-decoration:none;transition:background .25s}
.practice:hover{background:#fbf7ec}
.practice .photo{min-height:100%}
.practice .body{padding:30px 32px 32px;min-width:0;display:flex;flex-direction:column}
.practice .num{font-family:var(--f-display);font-style:italic;color:var(--brass-ink);font-size:1.05rem}
.practice h3{font-size:1.65rem;margin:8px 0 10px}
.practice p{margin:0 0 18px;color:var(--text-soft);font-size:var(--s-sm)}
.practice .who{margin-top:auto;font-size:var(--s-xs);letter-spacing:.16em;text-transform:uppercase;color:var(--brass-ink);font-weight:600}
.practice .more{font-size:.85rem;color:var(--ink);font-weight:500}

/* Diferenciales */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:52px;border-top:1px solid var(--rule-dark)}
.pillar{padding:34px 32px 6px 0;min-width:0}
.pillar+.pillar{padding-left:32px;border-left:1px solid var(--rule-dark)}
.pillar .k{font-family:var(--f-display);font-size:2.6rem;line-height:1;color:var(--brass)}
.pillar h3{font-size:1.45rem;margin:16px 0 10px}
.pillar p{margin:0;color:var(--cream-soft);font-size:var(--s-sm)}

/* Detalle de práctica */
.practice-layout{display:grid;grid-template-columns:250px 1fr;gap:clamp(32px,5vw,80px);align-items:start}
.subnav{position:sticky;top:calc(var(--header-h) + 32px);border-top:2px solid var(--ink)}
.subnav h4{font-family:var(--f-body);font-size:var(--s-xs);letter-spacing:.2em;text-transform:uppercase;color:var(--text-soft);font-weight:600;padding:16px 0 8px}
.subnav a{display:block;padding:11px 0;border-bottom:1px solid var(--rule);text-decoration:none;font-size:var(--s-sm);color:var(--text)}
.subnav a:hover{color:var(--brass-ink)}
.subnav .box{margin-top:28px;padding:22px;background:var(--ink);color:var(--cream)}
.subnav .box small{display:block;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--brass)}
.subnav .box strong{display:block;font-family:var(--f-display);font-weight:400;font-size:1.25rem;margin:6px 0 4px}
.subnav .box a{border:0;padding:0;color:var(--cream-soft);font-size:.85rem;word-break:break-all}
.subnav .box a:hover{color:var(--brass)}
.blocks{min-width:0}
.block{padding-block:0 56px;margin-bottom:56px;border-bottom:1px solid var(--rule)}
.block:last-child{border-bottom:0;margin-bottom:0}
.block-head{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.block-head .num{font-family:var(--f-display);font-style:italic;color:var(--brass-ink);font-size:1.2rem}
.block h2{font-size:clamp(1.8rem,3vw,2.4rem)}
.block > p{margin:16px 0 0;color:var(--text-soft);max-width:66ch}
.items{list-style:none;margin:30px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.items li{padding:16px 0 16px 26px;border-top:1px solid var(--rule);position:relative;min-width:0}
.items li::before{content:"";position:absolute;left:0;top:25px;width:12px;height:1px;background:var(--brass-ink)}
.items li b{display:block;font-weight:600;color:var(--ink);font-size:var(--s-sm)}
.items li span{display:block;color:var(--text-soft);font-size:.88rem;line-height:1.55;margin-top:3px}
.note{margin-top:26px;padding:18px 22px;background:var(--paper-2);border-left:2px solid var(--brass-ink);font-size:.9rem;color:var(--text-soft);max-width:72ch}
.note b{color:var(--ink)}

/* Socios */
.partners{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:52px}
.partner{background:var(--paper);border:1px solid var(--rule);display:grid;grid-template-rows:auto 1fr;min-width:0}
.partner .top{display:flex;gap:22px;align-items:center;padding:30px 32px;border-bottom:1px solid var(--rule)}
.partner .ini{color:var(--brass-ink);border-color:var(--brass-ink)}
.partner h3{font-size:1.7rem}
.partner .role{font-size:var(--s-xs);letter-spacing:.18em;text-transform:uppercase;color:var(--brass-ink);font-weight:600;margin-top:6px}
.partner .body{padding:24px 32px 30px}
.partner .body p{margin:0 0 16px;color:var(--text-soft);font-size:var(--s-sm)}
.partner .tags{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px;padding:0;list-style:none}
.partner .tags li{font-size:.76rem;padding:5px 10px;border:1px solid var(--rule);color:var(--text)}
.partner .mail{font-size:.9rem;font-weight:500;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--brass-ink)}

/* Historia */
.story{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,6vw,96px);align-items:start}
.story .photo{min-height:560px;position:sticky;top:calc(var(--header-h) + 32px)}
.story-text p{margin:0 0 20px;max-width:62ch}
.story-text p.big{font-family:var(--f-display);font-size:1.55rem;line-height:1.4;color:var(--ink)}
.story-text blockquote{margin:36px 0;padding:6px 0 6px 28px;border-left:2px solid var(--brass-ink);font-family:var(--f-display);font-style:italic;font-size:1.4rem;line-height:1.4;color:var(--ink)}
.values{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:52px}
.value{border-top:1px solid var(--brass);padding-top:20px;min-width:0}
.value h3{font-size:1.3rem;margin-bottom:8px}
.value p{margin:0;color:var(--cream-soft);font-size:var(--s-sm)}

/* Contacto */
.contact{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,6vw,88px);align-items:start}
.contact-cards{display:grid;gap:20px}
.c-card{border:1px solid var(--rule);padding:26px 28px;background:var(--paper)}
.c-card small{display:block;font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--brass-ink);font-weight:600}
.c-card h3{font-size:1.45rem;margin:8px 0 4px}
.c-card p{margin:0 0 14px;color:var(--text-soft);font-size:.88rem}
.c-card a.mail{font-family:var(--f-display);font-size:1.25rem;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--brass-ink);word-break:break-all}
form.cform{background:var(--ink);color:var(--cream);padding:clamp(28px,4vw,44px);display:grid;gap:18px}
form.cform h2{color:var(--cream);font-size:1.9rem}
form.cform p.hint{margin:0;color:var(--cream-soft);font-size:.88rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:grid;gap:7px;min-width:0}
.field label{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--brass)}
.field input,.field select,.field textarea{font:inherit;font-size:.95rem;color:var(--cream);background:transparent;border:0;border-bottom:1px solid var(--rule-dark);padding:10px 0;border-radius:0;width:100%}
.field select option{color:#111}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-bottom-color:var(--brass)}
form.cform button{justify-self:start;font:500 .9rem/1 var(--f-body);letter-spacing:.04em;background:var(--brass);color:var(--ink);border:0;padding:16px 28px;cursor:pointer}
form.cform button:hover{background:var(--cream)}
.form-msg{font-size:.85rem;color:var(--cream-soft);min-height:1.2em;margin:0}

/* Llamado final */
.cta-band{position:relative;padding:0;color:var(--cream)}
.cta-band .photo{position:absolute;inset:0}
.cta-band .photo::before{content:"";position:absolute;inset:0;z-index:1;background:rgba(27,35,20,.82)}
.cta-band .wrap{position:relative;z-index:2;padding-block:96px;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.cta-band h2{color:var(--cream);font-size:var(--s-xl);max-width:20ch}
.cta-band h2 em{color:var(--brass)}

/* Pie */
.site-footer{background:var(--ink);color:var(--cream-soft);font-size:.88rem}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-block:64px 44px}
.site-footer h4{font-family:var(--f-body);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--brass);font-weight:600;margin-bottom:16px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.site-footer a{text-decoration:none}
.site-footer a:hover{color:var(--cream)}
.site-footer .brand b{font-family:var(--f-display);font-weight:400;font-size:2rem;color:var(--cream)}
.site-footer .brand p{margin:12px 0 0;max-width:36ch}
.site-footer .legal{border-top:1px solid var(--rule-dark);padding-block:22px 30px;font-size:.72rem;line-height:1.7;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-footer .legal .credits{max-width:80ch}

@media (prefers-reduced-motion:no-preference){
  .hero .photo img,.page-hero .photo img{animation:drift 24s ease-out both}
  @keyframes drift{from{transform:scale(1.07)}to{transform:scale(1)}}
}
@media (max-width:1080px){
  .nav{gap:20px}
  .practice{grid-template-columns:1fr}
  .practice .photo{height:180px;min-height:0}
  .values{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--ink);border-bottom:1px solid var(--rule-dark);padding:8px max(24px,env(safe-area-inset-left,0px)) 20px}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--rule-dark)}
  .nav a.cta{margin-top:14px;text-align:center}
  .intro,.story,.contact,.practice-layout{grid-template-columns:1fr}
  .story .photo{position:relative;top:0;min-height:340px}
  .subnav{position:relative;top:0}
  .pillars{grid-template-columns:1fr}
  .pillar,.pillar+.pillar{padding:26px 0;border-left:0;border-bottom:1px solid var(--rule-dark)}
  .site-footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:700px){
  .practices,.partners,.items,.row{grid-template-columns:1fr}
  .logo > span{display:none}
  .values{grid-template-columns:1fr}
  .site-footer .cols{grid-template-columns:1fr}
  .btn{width:100%;justify-content:center}
}