/* =============================================================
   TRIDENTE LABS DTS — Design System
   "Institutional precision": editorial warmth (Fraunces serif)
   meeting clinical rigor (Manrope sans + IBM Plex Mono data).
   Palette derived from "Tridente" (trident / marine depth).
   ============================================================= */

/* ---------- Design tokens ---------- */
:root{
  /* Brand — marine navy foundation + single clinical teal accent */
  --ink:        #0B1B2B;   /* deep navy ink — primary dark surface + headings */
  --ink-2:      #0E2438;   /* raised dark surface */
  --ink-3:      #16324A;   /* dark hover / borders on dark */
  --accent:     #0F8B8D;   /* primary accent — clinical teal */
  --accent-deep:#0A6E70;   /* pressed / deep accent */
  --accent-soft:#E4F1F1;   /* teal wash for section tints */
  --gold:       #B08D57;   /* restrained recognition accent (Hecho en México) */

  /* Neutrals */
  --paper:      #F7F9FA;   /* page background */
  --white:      #FFFFFF;
  --mist:       #EEF3F4;   /* alt section background */
  --line:       #DCE5E7;   /* hairline borders (light) */
  --line-dark:  rgba(255,255,255,.12);
  --text:       #12222F;   /* body text on light */
  --muted:      #566773;   /* secondary text on light */
  --muted-dark: #9FB4BF;   /* secondary text on dark */

  /* Type */
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Spacing / rhythm */
  --container: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-y: clamp(64px, 9vw, 132px);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(11,27,43,.05), 0 4px 14px rgba(11,27,43,.05);
  --shadow-md: 0 6px 24px rgba(11,27,43,.08), 0 2px 6px rgba(11,27,43,.05);
  --shadow-lg: 0 24px 60px rgba(11,27,43,.14);
  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:400;color:var(--ink);letter-spacing:-.015em}
p{margin:0}
::selection{background:var(--accent);color:#fff}

/* ---------- Type scale ---------- */
.display{font-family:var(--serif);font-weight:380;line-height:1.04;letter-spacing:-.02em}
h1,.h1{font-family:var(--serif);font-weight:380;font-size:clamp(2.5rem,5.4vw,4.6rem);line-height:1.03;letter-spacing:-.022em}
h2,.h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.9rem,3.4vw,2.9rem);line-height:1.08;letter-spacing:-.02em}
h3,.h3{font-family:var(--sans);font-weight:600;font-size:1.28rem;line-height:1.25;letter-spacing:-.01em}
h4,.h4{font-family:var(--sans);font-weight:600;font-size:1.05rem;line-height:1.3}
.lead{font-size:clamp(1.08rem,1.7vw,1.32rem);line-height:1.55;color:var(--muted);font-weight:400}
.eyebrow{font-family:var(--mono);font-size:.72rem;font-weight:500;text-transform:uppercase;letter-spacing:.18em;color:var(--accent-deep)}
.eyebrow--light{color:var(--accent)}
.muted{color:var(--muted)}

/* ---------- Layout ---------- */
.container{max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--section-y)}
.section--tint{background:var(--mist)}
.section--dark{background:var(--ink);color:#fff}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff}
.section--dark .lead,.section--dark .muted{color:var(--muted-dark)}
.grid{display:grid;gap:clamp(18px,2.4vw,30px)}
.stack{display:flex;flex-direction:column}
.divider-tri{display:flex;gap:5px;align-items:flex-end;height:22px;margin:0 0 26px}
.divider-tri i{width:3px;background:var(--accent);border-radius:2px;display:block}
.divider-tri i:nth-child(1){height:12px}
.divider-tri i:nth-child(2){height:22px}
.divider-tri i:nth-child(3){height:12px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--sans);font-weight:600;font-size:.95rem;letter-spacing:.005em;
  padding:.92em 1.5em;border-radius:100px;border:1px solid transparent;
  transition:transform .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .2s;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;transition:transform .3s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-deep);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn--onDark{background:#fff;color:var(--ink)}
.btn--onDark:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}
.btn--onDark.btn--ghost{background:transparent;color:#fff;border-color:var(--line-dark)}
.btn--onDark.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,249,250,.72);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(247,249,250,.88)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px}
.brand .brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand .brand-name{font-family:var(--sans);font-weight:700;font-size:1.02rem;letter-spacing:-.01em;color:var(--ink);line-height:1}
.brand .brand-sub{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{font-size:.93rem;font-weight:500;color:var(--text);padding:.5em .8em;border-radius:8px;transition:background .2s,color .2s}
.nav-links a:hover{background:var(--mist);color:var(--ink)}
.nav-links a.is-active{color:var(--accent-deep)}
.nav-right{display:flex;align-items:center;gap:14px}
.lang-toggle{display:inline-flex;font-family:var(--mono);font-size:.72rem;font-weight:500;border:1px solid var(--line);border-radius:100px;overflow:hidden}
.lang-toggle button{padding:.42em .72em;background:transparent;color:var(--muted);border:0;letter-spacing:.06em;transition:background .2s,color .2s}
.lang-toggle button.is-active{background:var(--ink);color:#fff}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--white);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{width:18px;height:1.5px;background:var(--ink);transition:transform .3s,opacity .3s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding-block:clamp(72px,11vw,148px)}
.hero__depth{position:absolute;inset:0;opacity:.5;pointer-events:none}
.hero__glow{position:absolute;width:60vw;height:60vw;max-width:760px;max-height:760px;right:-14%;top:-24%;background:radial-gradient(circle,rgba(15,139,141,.34),transparent 62%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero h1{color:#fff;max-width:16ch}
.hero h1 em{font-style:italic;color:#7fd4d2;font-weight:300}
.hero__lead{max-width:56ch;margin-top:26px;color:var(--muted-dark);font-size:clamp(1.05rem,1.6vw,1.28rem);line-height:1.6}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:26px}
.hero__eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(15,139,141,.25)}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero__pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--radius);margin-top:clamp(44px,6vw,72px);overflow:hidden}
.hero__pillar{background:var(--ink);padding:22px 24px}
.hero__pillar .k{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.hero__pillar .t{margin-top:9px;font-weight:600;color:#fff;font-size:1.02rem}
.hero__pillar .d{margin-top:5px;color:var(--muted-dark);font-size:.9rem;line-height:1.45}

/* ---------- Generic section header ---------- */
.sec-head{max-width:64ch}
.sec-head .lead{margin-top:16px}
.sec-head--split{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,4vw,64px);align-items:end;max-width:none}

/* ---------- Service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.card{background:var(--white);padding:clamp(26px,3vw,38px);transition:background .3s var(--ease);position:relative}
.card:hover{background:#fff}
.card .num{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;color:var(--accent-deep)}
.card h3{margin-top:16px;color:var(--ink)}
.card p{margin-top:12px;color:var(--muted);font-size:.96rem;line-height:1.55}
.card .card-arrow{margin-top:20px;display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-deep);opacity:0;transform:translateX(-6px);transition:opacity .3s,transform .3s}
.card:hover .card-arrow{opacity:1;transform:translateX(0)}
.card::after{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--accent);transition:width .35s var(--ease)}
.card:hover::after{width:100%}

/* Feature list (why / value) */
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.feature{background:var(--white);padding:26px 28px}
.feature .ico{width:34px;height:34px;border-radius:9px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent-deep);margin-bottom:16px}
.feature .ico svg{width:18px;height:18px}
.feature h4{color:var(--ink)}
.feature p{margin-top:8px;color:var(--muted);font-size:.94rem;line-height:1.5}

/* ---------- Stats / market ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--radius);overflow:hidden}
.stat{background:var(--ink-2);padding:28px 26px}
.stat .val{font-family:var(--serif);font-weight:300;font-size:clamp(2.2rem,3.6vw,3.1rem);line-height:1;color:#fff;letter-spacing:-.02em}
.stat .val sup{font-size:.5em;color:var(--accent);vertical-align:super}
.stat .lbl{margin-top:12px;font-weight:600;color:#fff;font-size:.98rem}
.stat .desc{margin-top:7px;color:var(--muted-dark);font-size:.86rem;line-height:1.45}

/* Bar breakdown */
.bars{display:flex;flex-direction:column;gap:16px}
.bar-row{display:grid;grid-template-columns:120px 1fr auto;align-items:center;gap:16px}
.bar-row .name{font-size:.92rem;color:#fff;font-weight:500}
.bar-track{height:8px;background:rgba(255,255,255,.1);border-radius:100px;overflow:hidden}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),#5fc7c5);border-radius:100px;width:0;transition:width 1.1s var(--ease)}
.bar-row .pct{font-family:var(--mono);font-size:.82rem;color:var(--accent)}

/* Process / transfer flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;counter-reset:step}
.flow-step{background:var(--white);padding:28px 26px;position:relative}
.flow-step .step-k{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;color:var(--accent-deep);text-transform:uppercase}
.flow-step h4{margin-top:14px;color:var(--ink)}
.flow-step p{margin-top:10px;color:var(--muted);font-size:.92rem;line-height:1.5}

/* Recognition badges */
.badges{display:flex;flex-wrap:wrap;gap:14px}
.badge{display:inline-flex;align-items:center;gap:11px;padding:12px 18px;border:1px solid var(--line);border-radius:100px;background:var(--white);font-size:.9rem;font-weight:600;color:var(--ink)}
.badge .bdot{width:9px;height:9px;border-radius:50%;background:var(--gold)}
.badge--teal .bdot{background:var(--accent)}

/* Pill list */
.pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{font-family:var(--mono);font-size:.78rem;letter-spacing:.04em;padding:.5em 1em;border:1px solid var(--line);border-radius:100px;color:var(--muted);background:var(--white)}
.section--dark .pill{border-color:var(--line-dark);color:var(--muted-dark);background:transparent}

/* Founder / about */
.founder{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,4vw,60px);align-items:center}
.founder__card{background:var(--ink);border-radius:var(--radius-lg);padding:clamp(30px,4vw,48px);color:#fff;position:relative;overflow:hidden}
.founder__card .fmark{position:absolute;right:-30px;bottom:-30px;opacity:.09;width:200px}
.founder__initials{width:74px;height:74px;border-radius:16px;background:linear-gradient(135deg,var(--accent),var(--accent-deep));display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.9rem;color:#fff;margin-bottom:22px}

/* Timeline */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--accent),var(--line))}
.tl-item{position:relative;padding:0 0 30px 22px}
.tl-item::before{content:"";position:absolute;left:-24px;top:6px;width:11px;height:11px;border-radius:50%;background:var(--white);border:2px solid var(--accent)}
.tl-item .tl-k{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--accent-deep);text-transform:uppercase}
.tl-item h4{margin-top:6px;color:var(--ink)}
.tl-item p{margin-top:6px;color:var(--muted);font-size:.94rem}

/* ---------- Forms ---------- */
.form-wrap{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(26px,3.5vw,44px);box-shadow:var(--shadow-md)}
.field{margin-bottom:18px}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--ink);margin-bottom:7px;letter-spacing:.01em}
.field label .req{color:var(--accent-deep)}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:.98rem;color:var(--text);
  padding:.82em 1em;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper);
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px rgba(15,139,141,.12)
}
.field textarea{resize:vertical;min-height:130px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-note{margin-top:8px;font-size:.8rem;color:var(--muted)}
.form-status{margin-top:14px;font-size:.9rem;padding:12px 14px;border-radius:10px;display:none}
.form-status.ok{display:block;background:var(--accent-soft);color:var(--accent-deep)}
.form-status.err{display:block;background:#fdecec;color:#b23b3b}

.contact-info{display:flex;flex-direction:column;gap:2px}
.contact-info a,.contact-info span{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);color:var(--text);font-size:.98rem;transition:color .2s}
.contact-info a:hover{color:var(--accent-deep)}
.contact-info .ci-ico{width:20px;height:20px;color:var(--accent-deep);flex:0 0 auto}
.contact-info .ci-k{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:2px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:clamp(38px,5vw,72px);position:relative;overflow:hidden}
.cta-band__glow{position:absolute;right:-10%;top:-40%;width:50%;height:180%;background:radial-gradient(circle,rgba(15,139,141,.35),transparent 60%);pointer-events:none}
.cta-band .container{position:relative;z-index:2}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding-block:clamp(48px,6vw,72px) 34px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,48px)}
.site-footer .brand-name{color:#fff}
.site-footer p{color:var(--muted-dark);font-size:.92rem;line-height:1.6;margin-top:16px;max-width:34ch}
.footer-col h5{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 16px;font-weight:500}
.footer-col a{display:block;color:var(--muted-dark);font-size:.94rem;padding:5px 0;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{margin-top:clamp(36px,5vw,56px);padding-top:24px;border-top:1px solid var(--line-dark);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.footer-bottom p{margin:0;color:var(--muted-dark);font-size:.82rem}
.footer-bottom .tagline{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted-dark)}

/* ---------- Scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1!important;transform:none!important;transition:none!important}
  .bar-fill{transition:none!important}
  *{animation:none!important}
}

/* ---------- Focus visibility (a11y) ---------- */
:focus-visible{outline:2.5px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;transition:top .2s}
.skip-link:focus{top:12px}

/* i18n visibility helper */
[data-lang-hide="true"]{display:none!important}

/* ---------- Utilities ---------- */
.mt-s{margin-top:14px}.mt-m{margin-top:26px}.mt-l{margin-top:44px}
.maxw-60{max-width:60ch}.center{text-align:center}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,60px);align-items:start}
.text-accent{color:var(--accent-deep)}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .cards,.flow{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .hero__pillars{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .founder,.two-col,.sec-head--split{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
}
@media (max-width:720px){
  .nav-links{
    position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--paper);border-bottom:1px solid var(--line);padding:14px var(--gutter) 24px;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;
    box-shadow:var(--shadow-md);
  }
  .nav-links.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:.85em .4em;font-size:1rem;border-bottom:1px solid var(--line)}
  .nav-links a:last-child{border-bottom:0}
  .nav-toggle{display:flex}
  .nav-cta-desktop{display:none}
  .cards,.flow,.stat-grid,.feature-list,.footer-grid{grid-template-columns:1fr}
  .bar-row{grid-template-columns:92px 1fr auto}
  body{font-size:16px}
}