/* ==========================================================================
   Quantaloft – Main Stylesheet
   ========================================================================== */

/* ---------- 1. Design tokens ---------- */
:root {
  --ql-navy: #0B1B3F;
  --ql-navy-700: #132B5E;
  --ql-navy-600: #1E3A70;
  --ql-blue: #2563EB;
  --ql-blue-600: #1D4ED8;
  --ql-blue-50: #EEF4FF;
  --ql-teal: #14B8A6;
  --ql-teal-600: #0D9488;
  --ql-teal-50: #E8FAF7;

  --ql-text: #0F172A;
  --ql-body: #475569;
  --ql-muted: #64748B;
  --ql-border: #E2E8F0;
  --ql-bg: #FFFFFF;
  --ql-bg-alt: #F6F8FC;
  --ql-light-muted: #B6C2DA;

  --ql-gradient: linear-gradient(135deg, var(--ql-blue) 0%, var(--ql-teal) 100%);
  --ql-gradient-navy: linear-gradient(160deg, #132B5E 0%, #0B1B3F 60%, #08142F 100%);

  --ql-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --ql-radius-sm: 10px;
  --ql-radius: 16px;
  --ql-radius-lg: 24px;
  --ql-shadow-sm: 0 2px 8px rgba(11, 27, 63, .06);
  --ql-shadow: 0 12px 32px rgba(11, 27, 63, .08);
  --ql-shadow-lg: 0 24px 56px rgba(11, 27, 63, .14);
  --ql-transition: .25s ease;
  --ql-nav-height: 82px;
}

/* ---------- 2. Base ---------- */
/* Smooth scrolling is handled by jQuery (with navbar offset); override Bootstrap's :root smooth scroll */
:root { scroll-behavior: auto !important; }

body {
  font-family: var(--ql-font);
  color: var(--ql-body);
  background: var(--ql-bg);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  color: var(--ql-text);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.25;
}

a { color: var(--ql-blue); text-decoration: none; transition: color var(--ql-transition); }
a:hover { color: var(--ql-blue-600); }

::selection { background: rgba(37, 99, 235, .18); }

:focus-visible { outline: 3px solid rgba(37, 99, 235, .45); outline-offset: 2px; }

.skip-link {
  position: absolute; top: 8px; left: 8px; z-index: 2000;
  background: var(--ql-navy); color: #fff; padding: .5rem 1rem; border-radius: 8px;
}

section[id] { scroll-margin-top: var(--ql-nav-height); }

.text-gradient {
  background: var(--ql-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.text-light-muted { color: var(--ql-light-muted) !important; }

/* ---------- 3. Buttons ---------- */
.btn { font-weight: 600; border-radius: 12px; padding: .7rem 1.4rem; transition: all var(--ql-transition); }
.btn-lg { padding: .85rem 1.7rem; font-size: 1rem; }

.btn-brand {
  color: #fff;
  background: var(--ql-gradient);
  border: 0;
  box-shadow: 0 8px 20px rgba(37, 99, 235, .25);
}
.btn-brand:hover, .btn-brand:focus-visible {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(37, 99, 235, .32);
}
.btn-brand:active { transform: translateY(0); color: #fff !important; }
.btn-brand:disabled { opacity: .7; transform: none; }

.btn-outline-brand {
  color: var(--ql-navy);
  border: 1.5px solid var(--ql-border);
  background: #fff;
}
.btn-outline-brand:hover, .btn-outline-brand:focus-visible {
  color: var(--ql-blue);
  border-color: var(--ql-blue);
  transform: translateY(-2px);
  box-shadow: var(--ql-shadow-sm);
}

.btn-sm-nav { padding: .55rem 1.1rem; font-size: .925rem; }

/* ---------- 4. Navigation ---------- */
.site-nav {
  min-height: var(--ql-nav-height);
  background: rgba(255, 255, 255, .85);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--ql-transition), border-color var(--ql-transition), background var(--ql-transition);
}
.site-nav.scrolled {
  background: rgba(255, 255, 255, .96);
  border-bottom-color: var(--ql-border);
  box-shadow: 0 6px 20px rgba(11, 27, 63, .06);
}

.brand { display: inline-flex; align-items: center; padding: 0; margin-right: 1rem; }
.brand-logo { display: block; height: 65px; width: auto; }
@media (max-width: 575.98px) { .brand-logo { height: 55px; } }

.site-nav .nav-link {
  position: relative;
  color: var(--ql-navy);
  font-weight: 500;
  font-size: .95rem;
  padding: .5rem .9rem !important;
}
.site-nav .nav-link:hover { color: var(--ql-blue); }
.site-nav .nav-link.active { color: var(--ql-blue); }
@media (min-width: 992px) {
  .site-nav .nav-link::after {
    content: "";
    position: absolute; left: .9rem; right: .9rem; bottom: .15rem;
    height: 2px; border-radius: 2px;
    background: var(--ql-gradient);
    transform: scaleX(0); transform-origin: left;
    transition: transform var(--ql-transition);
  }
  .site-nav .nav-link:hover::after,
  .site-nav .nav-link.active::after { transform: scaleX(1); }
}

/* Custom hamburger */
.navbar-toggler {
  border: 1px solid var(--ql-border);
  border-radius: 10px;
  width: 44px; height: 44px;
  padding: 0;
  display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(37, 99, 235, .2); }
.toggler-bar {
  display: block; width: 20px; height: 2px; border-radius: 2px;
  background: var(--ql-navy);
  transition: transform var(--ql-transition), opacity var(--ql-transition);
}
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) { opacity: 0; }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 991.98px) {
  .site-nav { background: rgba(255, 255, 255, .97); }
  .navbar-collapse {
    margin-top: .75rem;
    padding: .75rem 0 1.25rem;
    border-top: 1px solid var(--ql-border);
  }
  .site-nav .nav-link { padding: .7rem .25rem !important; border-bottom: 1px solid #F1F5F9; }
  .site-nav .btn-sm-nav { width: 100%; padding: .75rem 1rem; }
}

/* ---------- 5. Sections (shared) ---------- */
.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--ql-bg-alt); }

.section-head { margin-bottom: 3.5rem; }
.section-kicker {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ql-blue);
  margin-bottom: .9rem;
  padding-left: 28px;
  position: relative;
}
.section-kicker::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 18px; height: 2px; border-radius: 2px;
  background: var(--ql-gradient);
}
.kicker-light { color: #5EEAD4; }

.section-title { font-size: clamp(1.85rem, 1.3rem + 2vw, 2.75rem); margin-bottom: 1.1rem; }
.section-text { font-size: 1.075rem; color: var(--ql-body); max-width: 680px; }

/* Icon boxes */
.icon-box {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.35rem;
}
.icon-blue { background: var(--ql-blue-50); color: var(--ql-blue); }
.icon-teal { background: var(--ql-teal-50); color: var(--ql-teal-600); }
.icon-navy { background: #E8ECF5; color: var(--ql-navy); }
.icon-glass { background: rgba(255, 255, 255, .08); color: #5EEAD4; border: 1px solid rgba(255, 255, 255, .12); }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--ql-nav-height) + 80px) 0 110px;
  overflow: hidden;
  background: linear-gradient(180deg, #F7FAFF 0%, #FFFFFF 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, .06) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 40%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 70% 40%, #000 30%, transparent 75%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(80px); }
.hero-glow-1 { width: 420px; height: 420px; right: -80px; top: 60px; background: rgba(37, 99, 235, .16); }
.hero-glow-2 { width: 360px; height: 360px; left: -120px; bottom: -120px; background: rgba(20, 184, 166, .14); }

.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .85rem; font-weight: 600;
  color: var(--ql-navy);
  background: #fff;
  border: 1px solid var(--ql-border);
  border-radius: 999px;
  padding: .4rem 1rem;
  box-shadow: var(--ql-shadow-sm);
  margin-bottom: 1.5rem;
}
.eyebrow i { color: var(--ql-teal); }

.hero-title {
  font-size: clamp(2.3rem, 1.4rem + 3.4vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}
.hero-title .text-gradient { display: inline; }
.hero-lead { font-size: 1.15rem; max-width: 560px; margin-bottom: 2.2rem; }

.hero-points {
  display: flex; flex-wrap: wrap; gap: .6rem 1.6rem;
  margin: 2.5rem 0 0;
  font-size: .925rem; font-weight: 500; color: var(--ql-navy);
}
.hero-points i { color: var(--ql-teal); margin-right: .35rem; }

.hero-visual { position: relative; text-align: center; }
.hero-visual img { width: 100%; max-width: 580px; animation: float 7s ease-in-out infinite; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- 7. About ---------- */
.about-visual { text-align: center; }
.about-visual img { width: 100%; max-width: 540px; }

.highlight-list { margin-top: 2rem; display: grid; gap: 1rem; }
.highlight-item {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--ql-border);
  border-radius: var(--ql-radius);
  background: #fff;
  transition: border-color var(--ql-transition), box-shadow var(--ql-transition), transform var(--ql-transition);
}
.highlight-item:hover { border-color: rgba(37, 99, 235, .3); box-shadow: var(--ql-shadow); transform: translateX(4px); }
.highlight-item h3 { margin-bottom: .25rem; font-size: 1.02rem; }
.highlight-item p { margin: 0; font-size: .95rem; }

/* ---------- 8. Services ---------- */
.service-card {
  border: 1px solid var(--ql-border);
  border-radius: var(--ql-radius);
  background: #fff;
  position: relative;
  overflow: hidden;
  transition: transform var(--ql-transition), box-shadow var(--ql-transition), border-color var(--ql-transition);
}
.service-card::before {
  content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px;
  background: var(--ql-gradient);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s ease;
}
.service-card .card-body { padding: 2rem 1.75rem; }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--ql-shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  color: var(--ql-blue);
  background: var(--ql-blue-50);
  margin-bottom: 1.4rem;
  transition: background var(--ql-transition), color var(--ql-transition);
}
.service-card:hover .service-icon { background: var(--ql-gradient); color: #fff; }

.service-title { font-size: 1.15rem; margin-bottom: .7rem; }
.service-text { font-size: .95rem; margin: 0; }

.service-card-cta { background: var(--ql-gradient-navy); border-color: transparent; color: var(--ql-light-muted); }
.service-card-cta .service-title { color: #fff; }
.service-card-cta .service-text { color: var(--ql-light-muted); }
.service-card-cta .service-icon { background: rgba(255, 255, 255, .1); color: #5EEAD4; }
.service-card-cta .cta-link {
  display: inline-flex; align-items: center; gap: .4rem;
  margin-top: 1.1rem; font-weight: 600; color: #5EEAD4;
}
.service-card-cta .cta-link i { transition: transform var(--ql-transition); }
.service-card-cta:hover .cta-link i { transform: translateX(4px); }

/* ---------- 10. Why Us ---------- */
.section-dark { background: var(--ql-gradient-navy); overflow: hidden; }
.section-dark-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px 300px at 10% 0%, rgba(37, 99, 235, .25), transparent 70%),
    radial-gradient(500px 300px at 95% 100%, rgba(20, 184, 166, .2), transparent 70%);
}
.section-dark-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 56px 56px;
}

.feature-card {
  padding: 2rem 1.6rem;
  border-radius: var(--ql-radius);
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .1);
  color: var(--ql-light-muted);
  transition: transform var(--ql-transition), background var(--ql-transition), border-color var(--ql-transition);
}
.feature-card:hover { transform: translateY(-6px); background: rgba(255, 255, 255, .07); border-color: rgba(94, 234, 212, .35); }
.feature-card p { margin: 0; font-size: .95rem; }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: #fff;
  background: var(--ql-gradient);
  box-shadow: 0 10px 24px rgba(20, 184, 166, .25);
  margin-bottom: 1.4rem;
}
.feature-title { color: #fff; font-size: 1.15rem; margin-bottom: .65rem; }

/* ---------- 11. Contact ---------- */
.contact-panel {
  position: relative;
  overflow: hidden;
  padding: 4rem 3.5rem;
  border-radius: var(--ql-radius-lg);
  background: var(--ql-gradient-navy);
  color: var(--ql-light-muted);
  box-shadow: var(--ql-shadow-lg);
}
.contact-panel::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 48px 48px;
}
.contact-panel::after {
  content: ""; position: absolute; width: 420px; height: 420px; right: -140px; bottom: -160px;
  border-radius: 50%; background: radial-gradient(circle, rgba(20, 184, 166, .28), transparent 70%);
  pointer-events: none;
}
.contact-panel .section-title { font-size: clamp(1.8rem, 1.3rem + 1.6vw, 2.5rem); }
.contact-lead { font-size: 1.075rem; max-width: 480px; }

.contact-cards { display: grid; gap: 1rem; }
.contact-card {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 1.35rem 1.5rem;
  border-radius: var(--ql-radius);
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  color: var(--ql-light-muted);
  transition: background var(--ql-transition), border-color var(--ql-transition), transform var(--ql-transition);
}
a.contact-card:hover { background: rgba(255, 255, 255, .08); border-color: rgba(94, 234, 212, .4); transform: translateY(-3px); color: var(--ql-light-muted); }
.contact-card-title { color: #fff; font-size: 1rem; margin-bottom: .3rem; }
.contact-card-value { display: block; color: var(--ql-light-muted); font-style: normal; line-height: 1.65; word-break: break-word; }
a.contact-card .contact-card-value { color: #5EEAD4; font-weight: 500; }

/* ---------- 12. Footer ---------- */
.site-footer {
  background: #07122B;
  color: var(--ql-light-muted);
  padding: 80px 0 0;
  font-size: .95rem;
}
.footer-about { margin: 1.25rem 0 0; max-width: 360px; }
.footer-heading {
  color: #fff; font-size: .95rem; font-weight: 700; letter-spacing: .02em;
  margin-bottom: 1.25rem;
}
.footer-links li { margin-bottom: .6rem; }
.footer-links a { color: var(--ql-light-muted); }
.footer-links a:hover { color: #5EEAD4; }
.footer-address { display: flex; gap: .6rem; font-style: normal; line-height: 1.65; }
.footer-address i { color: #5EEAD4; margin-top: .15rem; }
.footer-contact { margin: .9rem 0 0; }
.footer-contact li { display: flex; gap: .6rem; margin-bottom: .55rem; }
.footer-contact i { color: #5EEAD4; }
.footer-contact a { color: var(--ql-light-muted); word-break: break-word; }
.footer-contact a:hover { color: #5EEAD4; }

.footer-social { display: flex; gap: .6rem; margin-top: 1.5rem; }
.footer-social a {
  width: 40px; height: 40px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1);
}
.footer-social a:hover { background: var(--ql-gradient); border-color: transparent; color: #fff; }

.footer-bottom {
  margin-top: 56px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
  font-size: .875rem;
}
.footer-top-link { color: var(--ql-light-muted); }
.footer-top-link:hover { color: #5EEAD4; }

/* ---------- 13. Scroll to top ---------- */
.scroll-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 1030;
  width: 46px; height: 46px; border: 0; border-radius: 12px;
  background: var(--ql-gradient); color: #fff; font-size: 1.15rem;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .3);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all var(--ql-transition);
}
.scroll-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-3px); }

/* ---------- 14. Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in-view { opacity: 1; transform: none; }

/* ---------- 15. Responsive ---------- */
@media (max-width: 1199.98px) {
  .section { padding: 96px 0; }
}
@media (max-width: 991.98px) {
  :root { --ql-nav-height: 82px; }
  .hero { padding: calc(var(--ql-nav-height) + 56px) 0 80px; text-align: center; }
  .hero-lead, .section-text { margin-left: auto; margin-right: auto; }
  .hero .d-flex { justify-content: center; }
  .hero-points { justify-content: center; }
  .hero-visual img { max-width: 480px; }
  .section { padding: 80px 0; }
  .section-head { margin-bottom: 2.75rem; }
  .contact-panel { padding: 3rem 2rem; }
}
@media (max-width: 575.98px) {
  :root { --ql-nav-height: 72px; }
  .container { padding-left: 20px; padding-right: 20px; }
  .section { padding: 64px 0; }
  .hero { padding-bottom: 64px; }
  .hero .btn-lg { width: 100%; }
  .hero-points { flex-direction: column; align-items: center; gap: .4rem; }
  .service-card .card-body { padding: 1.6rem 1.4rem; }
  .contact-panel { padding: 2.5rem 1.35rem; border-radius: var(--ql-radius); }
  .scroll-top { right: 16px; bottom: 16px; }
  .footer-bottom { justify-content: center; text-align: center; }
}

/* ---------- 16. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}