/* ═══════════════════════════════════════════
   AI-DESARROLLOS  —  styles.css
   ═══════════════════════════════════════════ */

/* ── Reset ─────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,sans-serif;background:#080E1A;color:#94A3B8;
     line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* ── Tokens ─────────────────────────────────── */
:root{
  --bg:       #080E1A;
  --bg2:      #0D1625;
  --bg3:      #111D2E;
  --navy:     #1A2D5A;
  --navyMid:  #1E3A6E;
  --red:      #9B1D20;
  --redLt:    #C0282C;
  --sky:      #38BDF8;
  --skyDim:   #1E6FA8;
  --teal:     #0891B2;
  --slate:    #94A3B8;
  --slateD:   #475569;
  --white:    #FFFFFF;
  --green:    #10B981;
  --purple:   #7C3AED;
  --glass:    rgba(255,255,255,.05);
  --glassBdr: rgba(255,255,255,.10);
  --r:        14px;
  --sh:       0 4px 32px rgba(0,0,0,.4);
  --shLg:     0 12px 48px rgba(0,0,0,.5);
  --t:        .22s cubic-bezier(.4,0,.2,1);
}

/* ── Typography ─────────────────────────────── */
h1,h2,h3,h4{font-family:'Sora',sans-serif;color:#fff;line-height:1.1;letter-spacing:-.02em}
h1{font-size:clamp(2.2rem,5vw,3.8rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.5rem);font-weight:700}
h3{font-size:1.05rem;font-weight:700}
p{font-size:.95rem}
.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--sky)}
em.sky{font-style:normal;color:var(--sky)}

/* ── Layout ─────────────────────────────────── */
.wrap{max-width:1160px;margin:0 auto;padding:0 28px}
section{padding:96px 0}

/* ── Section header ─────────────────────────── */
.sec-head{text-align:center;margin-bottom:60px}
.sec-head .eyebrow{margin-bottom:12px}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--slate);max-width:580px;margin:0 auto;font-size:1rem}

/* ── Buttons ─────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;
     border-radius:50px;font-weight:600;font-size:.9rem;transition:var(--t);letter-spacing:.01em}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--redLt);transform:translateY(-2px);box-shadow:0 8px 28px rgba(155,29,32,.45)}
.btn-glass{background:var(--glass);color:#fff;border:1.5px solid var(--glassBdr)}
.btn-glass:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.2)}
.btn-sky{background:var(--sky);color:#080E1A;font-weight:700}
.btn-sky:hover{background:#7DD3FC;transform:translateY(-2px)}
.btn-teal{background:var(--teal);color:#fff}
.btn-teal:hover{background:#0E7490;transform:translateY(-2px)}

/* ── Cards base ─────────────────────────────── */
.glass-card{background:var(--bg2);border:1.5px solid var(--glassBdr);border-radius:var(--r);transition:var(--t)}
.glass-card:hover{border-color:rgba(255,255,255,.2);transform:translateY(-4px);box-shadow:var(--sh)}

/* ── NAV ─────────────────────────────────────── */
#site-nav{position:fixed;top:0;left:0;right:0;z-index:200;height:68px;
  display:flex;align-items:center;padding:0 32px;transition:var(--t);
  border-bottom:1px solid transparent}
#site-nav.scrolled{background:rgba(8,14,26,.96);backdrop-filter:blur(20px);
  border-bottom-color:var(--glassBdr)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;
  width:100%;max-width:1160px;margin:0 auto}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:36px;width:auto}
.nav-logo .brand{font-family:'Sora',sans-serif;font-size:.95rem;font-weight:700;color:#fff;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{color:rgba(255,255,255,.65);font-size:.87rem;font-weight:500;transition:var(--t)}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active{font-weight:700}
.nav-cta{background:var(--red);color:#fff!important;padding:8px 22px;
  border-radius:50px;font-size:.85rem!important;font-weight:600!important}
.nav-cta:hover{background:var(--redLt)!important;transform:translateY(-1px)}
.ham{display:none;flex-direction:column;gap:5px;padding:4px;cursor:pointer}
.ham span{width:22px;height:2px;background:#fff;border-radius:2px;display:block;transition:var(--t)}

/* Mobile menu */
#mob-menu{display:none;position:fixed;top:68px;left:0;right:0;
  background:rgba(8,14,26,.98);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--glassBdr);z-index:199;padding:24px 32px 32px}
#mob-menu.open{display:block}
#mob-menu a{display:block;color:rgba(255,255,255,.75);font-size:1rem;
  font-weight:500;padding:11px 0;border-bottom:1px solid var(--glassBdr);transition:var(--t)}
#mob-menu a:hover{color:#fff}
#mob-menu a:last-child{border-bottom:none;margin-top:8px}
#mob-menu .mob-cta{background:var(--red);color:#fff!important;text-align:center;
  border-radius:50px;border:none;padding:12px;margin-top:8px}

/* ── FOOTER ──────────────────────────────────── */
#site-footer{background:var(--bg2);border-top:1px solid var(--glassBdr);padding:56px 0 24px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:48px;margin-bottom:48px}
.foot-brand img{height:44px;margin-bottom:16px}
.foot-brand p{font-size:.85rem;color:var(--slateD);line-height:1.75;max-width:270px}
.foot-col h4{font-size:.75rem;font-weight:700;color:#fff;
  letter-spacing:.1em;text-transform:uppercase;margin-bottom:18px}
.foot-col a{display:block;font-size:.85rem;color:var(--slateD);margin-bottom:10px;transition:var(--t)}
.foot-col a:hover{color:#fff}
.foot-contact p{font-size:.85rem;color:var(--slateD);margin-bottom:9px;
  display:flex;align-items:center;gap:8px}
.foot-contact strong{color:var(--slate)}
.foot-bottom{border-top:1px solid var(--glassBdr);padding-top:22px;
  display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:var(--slateD)}
.foot-links{display:flex;gap:22px}
.foot-links a{color:var(--slateD);transition:var(--t)}
.foot-links a:hover{color:#fff}

/* ── Trust strip ─────────────────────────────── */
.trust-strip{background:var(--bg2);border-top:1px solid var(--glassBdr);
  border-bottom:1px solid var(--glassBdr);padding:20px 0;overflow:hidden}
.trust-scroll{display:flex;gap:52px;animation:tscroll 22s linear infinite;width:max-content}
.trust-scroll:hover{animation-play-state:paused}
@keyframes tscroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.trust-item{display:flex;align-items:center;gap:10px;white-space:nowrap;
  color:var(--slateD);font-size:.8rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase}
.trust-item .dot{width:4px;height:4px;background:var(--slateD);border-radius:50%;flex-shrink:0}

/* ── Page hero (inner pages) ─────────────────── */
.page-hero{min-height:44vh;display:flex;align-items:flex-end;padding-top:68px;
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#080E1A 0%,var(--navy) 60%,#080E1A 100%)}
.page-hero::before{content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 70% at 70% 40%,rgba(56,189,248,.06),transparent 70%)}
.page-hero-inner{position:relative;z-index:1;padding:80px 0 60px}
.page-hero .eyebrow{margin-bottom:12px}
.page-hero h1{margin-bottom:14px}
.page-hero .lead{color:var(--slate);font-size:1.05rem;max-width:560px;line-height:1.8}

/* ── Sol tabs ─────────────────────────────────── */
.sol-tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:52px}
.sol-tab{padding:9px 22px;border-radius:50px;font-size:.84rem;font-weight:600;
  border:1.5px solid var(--glassBdr);color:var(--slate);transition:var(--t);background:transparent}
.sol-tab:hover{border-color:rgba(255,255,255,.2);color:#fff}
.sol-tab.on{background:var(--sky);color:#080E1A;border-color:var(--sky)}

/* ── Methodology steps ───────────────────────── */
.method-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.method-row::before{content:'';position:absolute;top:40px;
  left:calc(12.5%);right:calc(12.5%);height:1.5px;
  background:linear-gradient(90deg,var(--navy),var(--skyDim),var(--navy));z-index:0}
.m-step{text-align:center;padding:0 16px;position:relative;z-index:1}
.m-circle{width:80px;height:80px;border-radius:50%;margin:0 auto 24px;
  display:flex;align-items:center;justify-content:center;
  font-family:'Sora',sans-serif;font-size:1.5rem;font-weight:800;
  color:#fff;border:2px solid;transition:var(--t)}
.m-step:hover .m-circle{transform:scale(1.08)}
.m-step h3{color:#fff;margin-bottom:8px}
.m-step p{font-size:.82rem}

/* ── CTA band ─────────────────────────────────── */
.cta-band{position:relative;overflow:hidden;padding:96px 0;text-align:center;
  background:linear-gradient(135deg,var(--navy) 0%,#080E1A 50%,rgba(155,29,32,.12) 100%)}
.cta-band::after{content:'';position:absolute;top:-20%;right:-5%;width:500px;height:500px;
  background:radial-gradient(circle,rgba(56,189,248,.05),transparent 70%);pointer-events:none}
.cta-inner{position:relative;z-index:1}
.cta-inner h2{margin-bottom:12px}
.cta-inner .sub{color:var(--slate);font-size:1rem;margin-bottom:32px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:24px}
.cta-contacts{display:flex;gap:32px;justify-content:center;flex-wrap:wrap}
.cta-contact{font-size:.85rem;color:var(--slateD)}
.cta-contact strong{color:var(--slate)}

/* ── Responsive ──────────────────────────────── */
@media(max-width:1024px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .nav-links{display:none}
  .ham{display:flex}
  section{padding:72px 0}
  .method-row{grid-template-columns:1fr 1fr;gap:32px}
  .method-row::before{display:none}
}
@media(max-width:600px){
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:12px;text-align:center}
  .method-row{grid-template-columns:1fr}
}