/* ========================================================
   IST Global Technology LLC — style.css
   Ruta: css/style.css  (misma estructura que proyecto Bomberos)
   ======================================================== */

:root {
  --ink:       #0a0f1e;
  --navy:      #0d1b3e;
  --blue:      #0f52ba;
  --azure:     #0078d4;
  --sky:       #38bdf8;
  --ice:       #e8f4fd;
  --white:     #ffffff;
  --offwhite:  #f7f9fc;
  --muted:     #64748b;
  --border:    #e1e8f0;
  --shadow:    0 4px 24px rgba(15,82,186,.09);
  --shadow-lg: 0 16px 48px rgba(15,82,186,.14);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--white);
  color: var(--ink);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── SCROLL REVEAL ── */
.sr       { opacity:0; transform:translateY(28px);   transition:opacity .7s ease,transform .7s ease; }
.sr.show  { opacity:1; transform:none; }
.sr-left  { opacity:0; transform:translateX(-30px);  transition:opacity .7s ease,transform .7s ease; }
.sr-left.show  { opacity:1; transform:none; }
.sr-right { opacity:0; transform:translateX(30px);   transition:opacity .7s ease,transform .7s ease; }
.sr-right.show { opacity:1; transform:none; }

/* ── SKIP LINK ── */
.skip-link { position:absolute;top:-40px;left:0;padding:.5rem 1rem;background:var(--blue);color:white;text-decoration:none;z-index:9999;transition:top .2s; }
.skip-link:focus { top:0; }

/* ── NAV ── */
nav {
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:68px;display:flex;align-items:center;justify-content:space-between;
  padding:0 6%;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s;
}
nav.scrolled { box-shadow:0 2px 20px rgba(0,0,0,.08); }
.nav-brand { display:flex;align-items:center;gap:10px;text-decoration:none; }
.nav-brand-icon {
  width:36px;height:36px;border-radius:8px;
  background:linear-gradient(135deg,var(--blue),var(--azure));
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.nav-brand-icon svg { width:20px;height:20px;color:white; }
.nav-brand-name { font-weight:700;font-size:.95rem;color:var(--ink);letter-spacing:-.01em; }
.nav-brand-name span { color:var(--azure); }
.nav-links { display:flex;gap:2rem;list-style:none; }
.nav-links a { color:var(--muted);text-decoration:none;font-size:.88rem;font-weight:500;transition:color .2s; }
.nav-links a:hover { color:var(--blue); }
.nav-actions { display:flex;gap:.75rem; }

/* ── BUTTONS ── */
.btn { display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1.3rem;border-radius:7px;font-size:.88rem;font-weight:600;text-decoration:none;transition:all .2s;cursor:pointer;border:none; }
.btn-ghost { background:transparent;border:1.5px solid var(--border);color:var(--ink); }
.btn-ghost:hover { border-color:var(--azure);color:var(--azure); }
.btn-primary { background:var(--blue);color:white;box-shadow:0 2px 12px rgba(15,82,186,.3); }
.btn-primary:hover { background:#0d47a1;box-shadow:0 4px 20px rgba(15,82,186,.4);transform:translateY(-1px); }
.btn-lg { padding:.8rem 2rem;font-size:.95rem;border-radius:9px; }
.btn-outline-white { background:transparent;border:1.5px solid rgba(255,255,255,.35);color:white; }
.btn-outline-white:hover { background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6); }

/* ── HAMBURGER ── */
.hamburger { display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px;z-index:1100; }
.hamburger span { width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s; }
.hamburger.active span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity:0; }
.hamburger.active span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

/* ── MOBILE NAV PANEL ── */
.nav-mobile-panel {
  display:none;position:fixed;top:68px;left:0;right:0;
  background:rgba(255,255,255,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);box-shadow:0 8px 30px rgba(0,0,0,.08);
  padding:1.5rem 6% 2rem;z-index:999;flex-direction:column;gap:1rem;
}
.nav-mobile-panel.open { display:flex; }
.nav-mobile-panel .nav-links { flex-direction:column;gap:.75rem; }
.nav-mobile-panel .nav-links a { font-size:1rem;color:var(--ink); }
.nav-mobile-panel .nav-actions { flex-direction:column;gap:.5rem;margin-top:.5rem; }
.nav-mobile-panel .btn { width:100%;justify-content:center; }

/* ── HERO ── */
#hero { min-height:100vh;background:var(--navy);display:flex;align-items:center;padding:120px 6% 80px;position:relative;overflow:hidden; }
.hero-mesh {
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse 70% 80% at 80% 50%,rgba(0,120,212,.18) 0%,transparent 65%),
    radial-gradient(ellipse 50% 60% at 20% 80%,rgba(15,82,186,.12) 0%,transparent 60%),
    radial-gradient(ellipse 40% 40% at 90% 10%,rgba(56,189,248,.08) 0%,transparent 55%);
}
.hero-grid-bg {
  position:absolute;inset:0;pointer-events:none;opacity:.04;
  background-image:linear-gradient(rgba(255,255,255,1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,1) 1px,transparent 1px);
  background-size:50px 50px;
}
.hero-inner { position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1280px;margin:0 auto;width:100%; }
.hero-eyebrow {
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.25);
  color:var(--sky);padding:.35rem 1rem;border-radius:50px;
  font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:1.6rem;animation:fadeDown .8s ease both;
}
.hero-eyebrow::before { content:'';width:6px;height:6px;border-radius:50%;background:var(--sky);animation:blink 2s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }
@keyframes fadeDown { from{opacity:0;transform:translateY(-16px)} to{opacity:1;transform:none} }
@keyframes fadeUp   { from{opacity:0;transform:translateY(24px)}  to{opacity:1;transform:none} }
@keyframes fadeIn   { from{opacity:0} to{opacity:1} }

.hero-h1 { font-weight:800;font-size:clamp(2.4rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.03em;color:white;margin-bottom:1.4rem;animation:fadeUp .9s .1s ease both; }
.hero-h1 span { background:linear-gradient(90deg,#38bdf8,#60a5fa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text; }
.hero-sub { font-size:1.05rem;color:#94a3b8;line-height:1.75;max-width:500px;margin-bottom:2.4rem;animation:fadeUp .9s .2s ease both; }
.hero-btns { display:flex;gap:1rem;flex-wrap:wrap;animation:fadeUp .9s .3s ease both; }
.hero-trust { display:flex;align-items:center;gap:1.5rem;margin-top:3rem;animation:fadeUp .9s .4s ease both;flex-wrap:wrap; }
.hero-trust-label { font-size:.78rem;color:#475569;font-weight:500;letter-spacing:.05em;text-transform:uppercase; }
.trust-badges { display:flex;gap:.75rem;flex-wrap:wrap; }
.trust-badge { background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:6px;padding:.3rem .8rem;font-size:.78rem;color:#94a3b8;font-weight:600; }
.hero-visual { animation:fadeIn 1.2s .2s ease both; }

/* ── METRICS ── */
#metrics { background:white;border-bottom:1px solid var(--border);padding:3rem 6%; }
.metrics-inner { max-width:1280px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:2rem; }
.metric { text-align:center;padding:1rem; }
.metric-num { font-size:2.4rem;font-weight:800;letter-spacing:-.04em;color:var(--blue);line-height:1;margin-bottom:.3rem; }
.metric-label { font-size:.85rem;color:var(--muted);font-weight:500; }

/* ── SECTIONS ── */
section { padding:100px 6%; }
.section-inner { max-width:1280px;margin:0 auto; }
.section-tag { display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--azure);margin-bottom:.7rem; }
.section-h2 { font-size:clamp(1.9rem,3vw,2.6rem);font-weight:800;letter-spacing:-.03em;line-height:1.12;margin-bottom:1rem; }
.section-h2 span { color:var(--azure); }
.section-lead { font-size:1.05rem;color:var(--muted);line-height:1.75;max-width:580px; }
.section-header { margin-bottom:4rem; }
.section-header.center { text-align:center; }
.section-header.center .section-lead { margin:0 auto; }

/* ── ABOUT ── */
#about { background:var(--offwhite); }
.about-grid { display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center; }
.about-visual-wrap { position:relative; }
.about-card-stack { position:relative;height:380px; }
.about-card { position:absolute;background:white;border-radius:16px;padding:1.6rem;box-shadow:var(--shadow-lg);border:1px solid var(--border); }
.about-card.main { inset:0;display:flex;flex-direction:column;justify-content:center; }
.about-card.float1 { width:200px;bottom:20px;right:-20px;background:var(--navy);border-color:rgba(255,255,255,.1); }
.about-card.float2 { width:180px;top:20px;left:-10px;animation:float1 5s ease-in-out infinite; }
@keyframes float1 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
.about-stat-num { font-size:2rem;font-weight:800;color:var(--sky);line-height:1; }
.about-stat-label { font-size:.78rem;color:rgba(255,255,255,.6);margin-top:.2rem; }
.about-float2-num { font-size:1.6rem;font-weight:800;color:var(--blue); }
.about-float2-label { font-size:.75rem;color:var(--muted);margin-top:.2rem; }
.about-pills { display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1.2rem; }
.about-pill { background:var(--ice);color:var(--blue);padding:.25rem .75rem;border-radius:50px;font-size:.75rem;font-weight:700; }
.about-points { margin-top:2rem;display:flex;flex-direction:column;gap:.9rem; }
.about-point { display:flex;align-items:flex-start;gap:.9rem; }
.about-point-dot { width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--azure));flex-shrink:0;display:flex;align-items:center;justify-content:center;margin-top:.15rem; }
.about-point-dot svg { width:11px;height:11px;color:white; }
.about-point-text { font-size:.95rem;color:#334155;line-height:1.55; }

/* ── SERVICES ── */
#services { background:white; }
.services-grid { display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem; }
.svc-card { background:white;border:1.5px solid var(--border);border-radius:16px;padding:2rem 1.8rem;position:relative;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s;cursor:default; }
.svc-card::after { content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--azure));transform:scaleX(0);transform-origin:left;transition:transform .3s; }
.svc-card:hover { transform:translateY(-6px);border-color:rgba(15,82,186,.25);box-shadow:var(--shadow-lg); }
.svc-card:hover::after { transform:scaleX(1); }
.svc-icon-wrap { width:56px;height:56px;border-radius:13px;background:linear-gradient(135deg,rgba(15,82,186,.08),rgba(0,120,212,.12));border:1px solid rgba(15,82,186,.12);display:flex;align-items:center;justify-content:center;margin-bottom:1.3rem; }
.svc-icon-wrap svg { width:28px;height:28px; }
.svc-title { font-size:1rem;font-weight:700;color:var(--ink);margin-bottom:.5rem;letter-spacing:-.01em; }
.svc-desc { font-size:.88rem;color:var(--muted);line-height:1.65; }
.svc-link { display:inline-flex;align-items:center;gap:.3rem;margin-top:1.2rem;font-size:.82rem;font-weight:600;color:var(--azure);text-decoration:none;transition:gap .2s; }
.svc-link:hover { gap:.55rem; }

/* ── AZURE SECTION ── */
#azure { background:var(--navy);position:relative;overflow:hidden; }
#azure::before { content:'';position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 60% 70% at 85% 50%,rgba(0,120,212,.2) 0%,transparent 65%); }
.azure-grid { display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center; }
.azure-h2 { color:white; }
.azure-sub { color:#94a3b8;max-width:480px; }
.azure-badge-row { display:flex;align-items:center;gap:.6rem;margin-bottom:1.5rem;flex-wrap:wrap; }
.azure-badge { background:rgba(0,120,212,.2);border:1px solid rgba(0,120,212,.4);color:#60a5fa;padding:.3rem .9rem;border-radius:6px;font-size:.78rem;font-weight:700;letter-spacing:.04em; }
.azure-features { display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2rem; }
.azure-feat { background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:1.3rem 1.4rem;transition:background .3s,border-color .3s; }
.azure-feat:hover { background:rgba(255,255,255,.08);border-color:rgba(56,189,248,.25); }
.azure-feat-top { display:flex;align-items:center;gap:.7rem;margin-bottom:.5rem; }
.azure-feat-icon { width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--blue),var(--azure));display:flex;align-items:center;justify-content:center;flex-shrink:0; }
.azure-feat-icon svg { width:16px;height:16px;color:white; }
.azure-feat-title { font-size:.9rem;font-weight:700;color:white; }
.azure-feat-desc { font-size:.82rem;color:#94a3b8;line-height:1.55; }

/* ── LICENSING ── */
#licensing { background:var(--offwhite); }
.lic-grid { display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center; }
.lic-vendors { display:grid;grid-template-columns:1fr 1fr;gap:1rem; }
.vendor-card { background:white;border:1.5px solid var(--border);border-radius:14px;padding:1.6rem;display:flex;flex-direction:column;align-items:center;gap:.8rem;transition:transform .3s,box-shadow .3s,border-color .3s; }
.vendor-card:hover { transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(15,82,186,.2); }
.vendor-card svg { width:44px;height:44px; }
.vendor-name { font-size:.88rem;font-weight:700;color:var(--ink); }
.vendor-desc { font-size:.78rem;color:var(--muted);text-align:center;line-height:1.45; }
.lic-points { margin-top:2rem;display:flex;flex-direction:column;gap:1rem; }
.lic-point { display:flex;align-items:flex-start;gap:1rem;padding:1rem 1.2rem;background:white;border:1px solid var(--border);border-radius:10px;transition:border-color .3s; }
.lic-point:hover { border-color:rgba(15,82,186,.25); }
.lic-point-icon { width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,var(--blue),var(--azure));display:flex;align-items:center;justify-content:center;flex-shrink:0; }
.lic-point-icon svg { width:18px;height:18px;color:white; }
.lic-point-title { font-size:.9rem;font-weight:700;color:var(--ink);margin-bottom:.2rem; }
.lic-point-desc { font-size:.82rem;color:var(--muted);line-height:1.5; }

/* ── WHY US ── */
#why { background:white; }
.why-grid { display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:1rem; }
.why-card { text-align:center;padding:2rem 1.5rem;border:1.5px solid var(--border);border-radius:16px;transition:transform .3s,box-shadow .3s,border-color .3s; }
.why-card:hover { transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(15,82,186,.2); }
.why-icon { width:60px;height:60px;border-radius:16px;margin:0 auto 1.2rem;background:linear-gradient(135deg,var(--blue),var(--azure));display:flex;align-items:center;justify-content:center; }
.why-icon svg { width:28px;height:28px;color:white; }
.why-title { font-size:.95rem;font-weight:700;color:var(--ink);margin-bottom:.5rem; }
.why-desc { font-size:.85rem;color:var(--muted);line-height:1.6; }

/* ── SUPPORT ── */
#support { background:var(--offwhite); }
.support-grid { display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center; }
.support-pills { display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.5rem; }
.pill { background:white;border:1.5px solid var(--border);border-radius:50px;padding:.4rem 1rem;font-size:.82rem;font-weight:600;color:#334155;transition:border-color .2s,color .2s; }
.pill:hover { border-color:var(--azure);color:var(--azure); }
.support-stat-cards { display:flex;flex-direction:column;gap:1rem; }
.support-stat { background:white;border:1px solid var(--border);border-radius:12px;padding:1.2rem 1.5rem;display:flex;align-items:center;gap:1.2rem;transition:box-shadow .3s; }
.support-stat:hover { box-shadow:var(--shadow); }
.support-stat-num { font-size:1.8rem;font-weight:800;color:var(--blue);min-width:72px;letter-spacing:-.04em; }
.support-stat-info-label { font-size:.88rem;font-weight:700;color:var(--ink); }
.support-stat-info-desc { font-size:.8rem;color:var(--muted); }

/* ── CONTACT ── */
#contact { background:var(--navy);position:relative;overflow:hidden; }
#contact::before { content:'';position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 50% 80% at 50% 100%,rgba(15,82,186,.25) 0%,transparent 65%); }
.contact-inner { max-width:1280px;margin:0 auto;position:relative;z-index:2; }
.contact-grid { display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start; }
.contact-h2 { color:white; }
.contact-sub { color:#94a3b8;margin-bottom:2rem; }
.contact-info-items { display:flex;flex-direction:column;gap:1.2rem; }
.contact-info-item { display:flex;align-items:flex-start;gap:1rem; }
.contact-info-icon { width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;flex-shrink:0; }
.contact-info-icon svg { width:18px;height:18px;color:var(--sky); }
.contact-info-label { font-size:.75rem;color:#64748b;font-weight:600;text-transform:uppercase;letter-spacing:.05em; }
.contact-info-value { font-size:.92rem;color:white;font-weight:500;margin-top:.1rem; }
.contact-form { background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:2rem; }
.contact-form-title { font-size:1.1rem;font-weight:700;color:white;margin-bottom:.3rem; }
.contact-form-sub { font-size:.85rem;color:#64748b;margin-bottom:1.5rem; }
.form-row { display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem; }
.form-group { display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem; }
.form-group label { font-size:.8rem;font-weight:600;color:#94a3b8;letter-spacing:.04em;text-transform:uppercase; }
.form-group input,.form-group select,.form-group textarea { background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:.75rem 1rem;color:white;font-size:.9rem;font-family:inherit;outline:none;transition:border-color .2s;width:100%; }
.form-group input::placeholder,.form-group textarea::placeholder { color:#475569; }
.form-group input:focus,.form-group select:focus,.form-group textarea:focus { border-color:var(--azure); }
.form-group select option { background:var(--navy);color:white; }
.form-group textarea { resize:vertical;min-height:100px; }
.form-submit { background:linear-gradient(135deg,var(--blue),var(--azure));color:white;border:none;border-radius:8px;padding:.85rem 2rem;font-size:.92rem;font-weight:700;cursor:pointer;width:100%;transition:opacity .2s,transform .2s; }
.form-submit:hover { opacity:.92;transform:translateY(-1px); }
.form-submit:disabled { opacity:.7;cursor:not-allowed;transform:none; }
.contact-cta-btns { display:flex;gap:1rem;margin-top:2rem;flex-wrap:wrap; }
.form-msg { display:none;padding:.75rem 1rem;border-radius:8px;font-size:.88rem;font-weight:600;margin-top:.75rem; }
.form-msg-ok  { background:rgba(22,163,74,.15);border:1px solid rgba(22,163,74,.35);color:#86efac; }
.form-msg-err { background:rgba(220,38,38,.12);border:1px solid rgba(220,38,38,.3);color:#fca5a5; }

/* ── FOOTER ── */
footer { background:#060c1c;border-top:1px solid rgba(255,255,255,.06);padding:3rem 6% 2rem; }
.footer-inner { max-width:1280px;margin:0 auto; }
.footer-top { display:flex;justify-content:space-between;align-items:flex-start;gap:3rem;padding-bottom:2rem;border-bottom:1px solid rgba(255,255,255,.06);flex-wrap:wrap; }
.footer-brand { max-width:280px; }
.footer-brand-name { font-size:1rem;font-weight:700;color:white;margin-bottom:.5rem; }
.footer-brand-desc { font-size:.82rem;color:#475569;line-height:1.6; }
.footer-partner-badges { display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1rem; }
.footer-partner-badge { background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);color:#475569;padding:.2rem .65rem;border-radius:5px;font-size:.72rem;font-weight:600; }
.footer-links-group h4 { font-size:.78rem;font-weight:700;color:#64748b;text-transform:uppercase;letter-spacing:.08em;margin-bottom:.8rem; }
.footer-links-group ul { list-style:none;display:flex;flex-direction:column;gap:.5rem; }
.footer-links-group a { font-size:.85rem;color:#475569;text-decoration:none;transition:color .2s; }
.footer-links-group a:hover { color:white; }
.footer-bottom { display:flex;justify-content:space-between;align-items:center;padding-top:1.5rem;flex-wrap:wrap;gap:.5rem; }
.footer-copy { font-size:.8rem;color:#334155; }
.footer-legal { display:flex;gap:1.5rem; }
.footer-legal a { font-size:.8rem;color:#334155;text-decoration:none;transition:color .2s; }
.footer-legal a:hover { color:#64748b; }

/* ── WHATSAPP FAB ── */
.fab-whatsapp { position:fixed;bottom:2rem;right:2rem;z-index:999;width:56px;height:56px;border-radius:50%;background:#25d366;color:white;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(37,211,102,.4);transition:transform .2s,box-shadow .2s;text-decoration:none; }
.fab-whatsapp:hover { transform:scale(1.08);box-shadow:0 6px 28px rgba(37,211,102,.55); }
.fab-whatsapp svg { width:28px;height:28px; }

/* ── SCROLL TO TOP ── */
.scroll-top { position:fixed;bottom:5.5rem;right:2rem;z-index:999;width:44px;height:44px;border-radius:50%;background:rgba(15,82,186,.85);color:white;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity .3s,transform .3s,background .2s;box-shadow:0 4px 16px rgba(15,82,186,.3); }
.scroll-top.visible { opacity:1;pointer-events:auto;transform:none; }
.scroll-top:hover { background:var(--blue); }
.scroll-top svg { width:20px;height:20px; }

/* ── RESPONSIVE ── */
@media (max-width:1024px) {
  .services-grid { grid-template-columns:1fr 1fr; }
  .why-grid      { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  .nav-links,.nav-actions { display:none; }
  .hamburger { display:flex; }
  .hero-inner { grid-template-columns:1fr; }
  .hero-visual { display:none; }
  .about-grid,.lic-grid,.azure-grid,.support-grid,.contact-grid { grid-template-columns:1fr;gap:3rem; }
  .services-grid { grid-template-columns:1fr; }
  .why-grid      { grid-template-columns:1fr 1fr; }
  .metrics-inner { grid-template-columns:1fr 1fr; }
  .azure-features { grid-template-columns:1fr; }
  .footer-top { flex-direction:column; }
  .form-row   { grid-template-columns:1fr; }
  .about-card-stack { height:300px; }
  .about-card.float1 { right:0; }
  .about-card.float2 { left:0; }
}
@media (max-width:480px) {
  .why-grid          { grid-template-columns:1fr; }
  .metrics-inner     { grid-template-columns:1fr 1fr; }
  .hero-btns         { flex-direction:column; }
  .contact-cta-btns  { flex-direction:column; }
  .fab-whatsapp      { bottom:1.25rem;right:1.25rem; }
  .scroll-top        { bottom:4.5rem;right:1.25rem; }
}