/* =====================================================
   ITACS Communications LLC — Design 5 (Clean / White)
   White background · Inter font · Navy + Magenta theme
   ===================================================== */

:root{
  --navy:#0c0c24;
  --navy-2:#1a1a3a;
  --rose:#c00054;
  --rose-bright:#e0246f;
  --rose-deep:#82003c;
  --rose-tint:#fdeef4;
  --rose-soft:#fbe3ee;

  --white:#ffffff;
  --off:#f7f7fb;
  --line:#e9e9f0;
  --ink:#14142b;
  --gray:#5a5a72;
  --gray-light:#8a8aa0;

  --grad:linear-gradient(120deg,#82003c 0%,#c00054 55%,#e0246f 110%);
  --shadow-sm:0 2px 12px rgba(12,12,36,.05);
  --shadow-md:0 10px 34px -12px rgba(12,12,36,.14);
  --shadow-lg:0 24px 60px -20px rgba(12,12,36,.22);
  --radius:16px;
  --maxw:1180px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{font-family:var(--font);color:var(--gray);background:var(--white);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;width:100%;-webkit-tap-highlight-color:transparent}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.15;letter-spacing:-.02em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px}
.accent{color:var(--rose)}

.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:300;transition:width .1s linear}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font);font-weight:600;font-size:.95rem;padding:.85rem 1.7rem;border-radius:10px;cursor:pointer;border:none;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-primary{background:var(--grad);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px -10px rgba(192,0,84,.5)}
.btn-line{background:transparent;border:1.5px solid var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--rose);color:var(--rose);transform:translateY(-2px)}
.btn-block{width:100%}

/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0px 32px;background:rgba(255,255,255,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:.3s}
.site-header.scrolled{box-shadow:0 1px 0 var(--line);background:rgba(255,255,255,.96)}
.brand-logo{
  height: 115px;
  transition: 0.3s;
}
.site-header.scrolled .brand-logo {
  height: 85px;
}
.nav{display:flex;align-items:center;gap:2rem}
.nav a{font-weight:500;font-size:.95rem;color:var(--ink);position:relative;transition:color .2s}
.nav a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:2px;background:var(--rose);transition:width .25s}
.nav a:not(.nav-cta):hover::after{width:100%}
.nav a:not(.nav-cta):hover{color:var(--rose)}
.nav-cta{background:var(--grad);color:#fff!important;padding:.5rem 1.3rem;border-radius:10px;font-weight:600}
.nav-cta:hover{transform:translateY(-2px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;z-index:110}
.nav-toggle span{width:26px;height:2.5px;background:var(--ink);border-radius:3px;transition:.3s}
.nav-toggle.open span{background:#fff}
.nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ===== Section base ===== */
.section{padding:96px 0}
.section-head{max-width:660px;margin:0 auto 54px;text-align:center}
.kicker{display:inline-block;font-weight:700;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--rose);margin-bottom:1rem}
.section-head h2{font-size:clamp(1.9rem,3.2vw,2.6rem);margin-bottom:1rem}
.section-head p{color:var(--gray);font-size:1.05rem}
h2{font-size:clamp(1.8rem,3vw,2.5rem)}

/* ===== Hero ===== */
.hero{padding:180px 0 110px;background:
  radial-gradient(circle at 85% 15%,var(--rose-tint),transparent 45%),
  radial-gradient(circle at 10% 90%,#f2f2fa,transparent 50%),var(--white);
  text-align:center}
.hero-inner{max-width:820px}
.overline{display:inline-block;font-weight:600;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:var(--rose);background:var(--rose-tint);padding:.5rem 1.1rem;border-radius:50px;margin-bottom:1.6rem}
.hero h1{font-size:clamp(2.4rem,5.2vw,3.9rem);color:var(--ink);margin-bottom:1.4rem;letter-spacing:-.03em}
.hero .lead{font-size:1.2rem;color:var(--gray);max-width:640px;margin:0 auto 2.2rem}
.actions{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}

/* ===== About ===== */
.about{background:var(--white)}
.about-inner{max-width:760px;margin:0 auto;text-align:center}
.about .kicker{margin-bottom:1rem}
.about h2{font-size:clamp(1.8rem,3vw,2.4rem);margin-bottom:1.4rem}
.about p{margin-bottom:1.1rem}
.about-points{display:flex;flex-direction:column;gap:.8rem;max-width:520px;margin:2rem auto 0;text-align:left}
.point{display:flex;align-items:flex-start;gap:.8rem;font-weight:500;color:var(--ink)}
.tick{flex:none;width:1.4rem;height:1.4rem;margin-top:2px;border-radius:50%;background:var(--rose-tint);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23c00054' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center}

/* ===== SIRA ===== */
.sira{background:var(--off)}
.sira-head{display:grid;grid-template-columns:1.6fr .8fr;gap:40px;align-items:center;margin-bottom:52px}
.sira-head h2{font-size:clamp(1.8rem,3vw,2.4rem);margin-bottom:1.1rem}
.sira-head p{margin-bottom:1.6rem}
.sira-badge{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow-sm)}
.sira-logo-wrap{display:flex;align-items:center;justify-content:center;width:120px;height:120px;margin:0 auto 1rem;border-radius:50%;background:#fff;border:1px solid var(--line);padding:14px}
.sira-logo-wrap img{width:100%;height:100%;object-fit:contain}
.sira-badge strong{display:block;font-size:1.2rem;color:var(--ink);text-transform:uppercase;letter-spacing:.02em}
.sira-badge .sira-sub{font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--rose);font-weight:600}
.block-sub{font-size:1.3rem;margin-bottom:1.5rem;color:var(--ink)}
.sira-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:48px}
.sira-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px;transition:transform .25s,box-shadow .25s,border-color .25s}
.sira-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--rose-soft)}
.sira-ic{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:var(--rose-tint);color:var(--rose);margin-bottom:1rem}
.sira-ic svg{width:24px;height:24px}
.sira-card p{font-weight:600;font-size:.92rem;color:var(--ink);line-height:1.4}

/* ===== Services ===== */
.services{background:var(--white)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.service-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s;overflow:hidden}
.service-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.service-card:hover::before{transform:scaleX(1)}
.svc-num{font-weight:800;font-size:1rem;color:var(--rose);margin-bottom:.9rem}
.service-card h3{font-size:1.3rem;margin-bottom:.6rem;color:var(--ink)}
.service-card>p{font-size:.95rem;margin-bottom:1.2rem}
.svc-list{display:flex;flex-direction:column;gap:.45rem;margin-bottom:1.2rem}
.svc-list li{position:relative;padding-left:1.4rem;font-size:.9rem;color:var(--gray)}
.svc-list li::before{content:"";position:absolute;left:0;top:.5rem;width:6px;height:6px;border-radius:50%;background:var(--rose)}
.ai-block{margin-top:auto;background:var(--rose-tint);border-radius:12px;padding:16px 18px}
.ai-head{display:inline-block;font-weight:800;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:var(--grad);padding:.2rem .6rem;border-radius:50px;margin-bottom:.7rem}
.ai-list{display:flex;flex-direction:column;gap:.4rem}
.ai-list li{position:relative;padding-left:1.3rem;font-size:.88rem;font-weight:500;color:var(--rose-deep)}
.ai-list li::before{content:"▸";position:absolute;left:0;color:var(--rose)}
.card-cta{background:var(--navy);border-color:transparent;justify-content:center;text-align:center}
.card-cta::before{display:none}
.card-cta h3{color:#fff}
.card-cta p{color:rgba(255,255,255,.75);font-size:.95rem;margin-bottom:1.2rem}
.cta-go{font-weight:600;color:var(--rose-bright)}
.card-cta:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}

/* ===== Sectors ===== */
.sectors{background:var(--off)}
.sector-grid{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;max-width:900px;margin:0 auto}
.sector-grid span{font-weight:600;font-size:.98rem;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:50px;padding:.85rem 1.6rem;transition:.25s}
.sector-grid span:hover{border-color:var(--rose);color:var(--rose);transform:translateY(-3px);box-shadow:var(--shadow-sm)}

/* ===== Contact ===== */
.contact{background:var(--white)}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info h2{font-size:clamp(1.8rem,3vw,2.3rem);margin-bottom:1rem}
.contact-info>p{margin-bottom:1.8rem}
.contact-list{display:grid;gap:1.1rem}
.contact-list li{color:var(--gray);font-size:.96rem}
.contact-list strong{display:block;color:var(--ink);font-weight:700;margin-bottom:.15rem}
.contact-list a:hover{color:var(--rose)}
.contact-side{display:flex;flex-direction:column;gap:20px}
.contact-form{display:grid;gap:.8rem;background:var(--off);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.contact-form input,.contact-form textarea{width:100%;padding:.8rem 1rem;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-family:var(--font);font-size:16px;resize:vertical;-webkit-appearance:none;appearance:none}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--gray-light)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--rose);box-shadow:0 0 0 3px var(--rose-tint)}
.form-note{font-size:.85rem;color:var(--rose);font-weight:600}
.form-note-ok{color:#1a7a44}
.form-note-error{color:var(--rose)}
.form-note a{color:inherit;text-decoration:underline}
.contact-form button[disabled]{opacity:.7;cursor:not-allowed}
.contact-map{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);height:240px}
.contact-map iframe{width:100%;height:100%;border:0;filter:grayscale(.15)}

/* ===== Footer ===== */
.site-footer{background:var(--navy);color:rgba(255,255,255,.6);padding:56px 0 26px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo{height:120px;margin-bottom:1rem;display:block}
.footer-brand p{font-size:.92rem;max-width:330px;color:rgba(255,255,255,.55)}
.footer-tag{margin-top:.6rem;color:var(--rose-bright)!important;font-weight:500}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:1rem}
.footer-col a{display:block;font-size:.92rem;padding:.3rem 0;transition:.2s}
.footer-col a:hover{color:var(--rose-bright);transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;padding-top:22px;font-size:.84rem;color:rgba(255,255,255,.4)}

/* ===== WhatsApp ===== */
.whatsapp-float{position:fixed;right:22px;bottom:22px;bottom:calc(22px + env(safe-area-inset-bottom));z-index:200;display:inline-flex;align-items:center;gap:.55rem;background:#25D366;color:#fff;font-weight:600;font-size:.95rem;padding:13px 18px 13px 15px;border-radius:50px;box-shadow:0 12px 30px -8px rgba(37,211,102,.55);transition:transform .2s}
.whatsapp-float svg{width:26px;height:26px}
.whatsapp-float:hover{transform:translateY(-3px) scale(1.03)}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.06s}.reveal.d2{transition-delay:.12s}.reveal.d3{transition-delay:.18s}.reveal.d4{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ===== Responsive ===== */
@media(max-width:1000px){
  .sira-head{grid-template-columns:1fr;gap:28px}
  .sira-badge{max-width:340px;margin:0 auto}
  .sira-grid{grid-template-columns:repeat(3,1fr)}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  .site-header{padding:10px 22px}
  .container{padding:0 22px}
  .section{padding:64px 0}
  .contact-inner{grid-template-columns:1fr;gap:32px}
  .nav{position:fixed;inset:0;flex-direction:column;justify-content:center;background:var(--navy);transform:translateX(100%);transition:transform .35s;gap:1.6rem}
  .nav.open{transform:none}
  .nav a{color:#fff!important;font-size:1.3rem}
  .nav a:not(.nav-cta):hover{color:var(--rose-bright)}
  .nav-toggle{display:flex}
  .brand-logo{height:78px}
  .site-header.scrolled .brand-logo{height:64px}
}
@media(max-width:620px){
  .sira-grid{grid-template-columns:1fr 1fr}
  .service-grid{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .hero{padding:150px 0 80px}
  .wa-label{display:none}
  .whatsapp-float{padding:14px}
}
@media(hover:none){
  .service-card:hover,.sira-card:hover,.sector-grid span:hover,.btn:hover,.whatsapp-float:hover{transform:none}
}