/* ===================================================================
   CROWN Digital Land Surveyors — Premium Corporate Theme
   ThemeForest-style: rich, polished, corporate template design
   Palette: Deep navy + refined gold + warm off-white
   Includes full site-wide animation system
=================================================================== */

:root {
  --bt-primary: #0b1f3a;        /* deep navy */
  --bt-primary-dark: #08182e;
  --bt-primary-deep: #050f1f;
  --bt-accent: #e6a22e;         /* refined gold */
  --bt-accent-light: #e6c07a;
  --bt-accent-dark: #b9863a;
  --bt-light: #f6f4f0;          /* warm off-white */
  --bt-soft: #eef1f5;
  --bt-white: #ffffff;
  --bt-text: #5b6472;
  --bt-text-light: #8b94a3;
  --bt-heading: #0b1f3a;
  --bt-border: #e6e9ee;
  --bt-muted: #aab2bf;
  --bt-shadow: 0 14px 40px rgba(11,31,58,.10);
  --bt-shadow-lg: 0 30px 70px rgba(11,31,58,.18);
  --bt-shadow-accent: 0 18px 45px rgba(212,162,78,.28);
  --bt-grad: linear-gradient(135deg, #0b1f3a 0%, #133a63 100%);
  --bt-grad-accent: linear-gradient(135deg, #d4a24e 0%, #e6c07a 100%);
  --bt-radius: 18px;
  --bt-radius-sm: 12px;
  --bt-font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --bt-font-head: 'Poppins', 'Segoe UI', system-ui, sans-serif;
  --bt-transition: .35s cubic-bezier(.4,0,.2,1);
  --bt-ease: cubic-bezier(.4,0,.2,1);
  --bt-ease-out: cubic-bezier(0,0,.2,1);
}

/* ============ Base ============ */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--bt-font-body);
  color: var(--bt-text);
  background: var(--bt-white);
  line-height: 1.75;
  overflow-x: hidden;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--bt-font-head);
  color: var(--bt-heading);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -.01em;
}

a { text-decoration: none; color: var(--bt-primary); transition: var(--bt-transition); }
a:hover { color: var(--bt-accent-dark); }
img { max-width: 100%; height: auto; }
::selection { background: var(--bt-accent); color: var(--bt-primary-deep); }

.container { max-width: 1240px; }

/* ============ Buttons ============ */
.btn-bt {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .95rem 1.9rem;
  border-radius: 60px;
  font-family: var(--bt-font-head);
  font-weight: 600; font-size: .92rem; letter-spacing: .02em;
  border: none; cursor: pointer; overflow: hidden;
  transition: var(--bt-transition);
  box-shadow: 0 6px 18px rgba(11,31,58,.12);
}
.btn-bt i { transition: transform var(--bt-transition); }
.btn-bt:hover i { transform: translateX(4px); }

.btn-bt-primary { background: var(--bt-primary); color: #fff; }
.btn-bt-primary::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: var(--bt-grad-accent); opacity: 0; transition: opacity var(--bt-transition);
}
.btn-bt-primary:hover { color: var(--bt-primary-deep); transform: translateY(-3px); box-shadow: var(--bt-shadow-accent); }
.btn-bt-primary:hover::before { opacity: 1; }
.btn-bt-primary span, .btn-bt-primary i { position: relative; z-index: 1; }

.btn-bt-accent { background: var(--bt-grad-accent); color: var(--bt-primary-deep); }
.btn-bt-accent:hover { transform: translateY(-3px); box-shadow: var(--bt-shadow-accent); color: var(--bt-primary-deep); }

.btn-bt-outline { background: transparent; color: var(--bt-primary); border: 2px solid rgba(11,31,58,.25); box-shadow: none; }
.btn-bt-outline:hover { background: var(--bt-primary); color: #fff; border-color: var(--bt-primary); transform: translateY(-3px); }
.btn-bt-outline-light { border-color: rgba(255,255,255,.5); color: #fff; background: transparent; box-shadow: none; }
.btn-bt-outline-light:hover { background: #fff; color: var(--bt-primary); border-color: #fff; transform: translateY(-3px); }

.btn-bt-light { background: #fff; color: var(--bt-primary); box-shadow: var(--bt-shadow); }
.btn-bt-light:hover { background: var(--bt-accent); color: var(--bt-primary-deep); transform: translateY(-3px); }

.btn-bt-lg { padding: 1.1rem 2.3rem; font-size: 1rem; }

/* ============ Section helpers ============ */
.section { padding: 6.5rem 0; position: relative; }
.section-light { background: var(--bt-light); }
.section-soft { background: var(--bt-soft); }
.section-navy {
  background: var(--bt-grad); color: #c9d4e2; position: relative; overflow: hidden;
}
.section-navy::before {
  content: ''; position: absolute; top: -120px; right: -120px; width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(212,162,78,.18), transparent 70%);
  border-radius: 50%; pointer-events: none;
}
.section-navy h1, .section-navy h2, .section-navy h3, .section-navy h4 { color: #fff; }
.section-navy .section-lead { color: #b9c6d6; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  letter-spacing: .22em; text-transform: uppercase;
  font-size: .72rem; font-weight: 700; color: var(--bt-accent-dark);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: ''; width: 34px; height: 2px; background: var(--bt-accent); display: inline-block;
}
.eyebrow-center { justify-content: center; }
.eyebrow-center::after {
  content: ''; width: 34px; height: 2px; background: var(--bt-accent); display: inline-block;
}
.section-navy .eyebrow { color: var(--bt-accent-light); }

.section-title { font-size: clamp(1.9rem, 3.4vw, 2.9rem); font-weight: 800; letter-spacing: -.02em; }
.section-lead { max-width: 660px; margin: 1.1rem auto 0; font-size: 1.05rem; color: var(--bt-text); }

.sec-head { margin-bottom: 3.2rem; }
.sec-head-left { text-align: left; }
.sec-head-center { text-align: center; }
.sec-head-center .section-lead { margin-inline: auto; }

/* ============ Header / Nav — glass ============ */
.bt-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgb(2 21 43);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid rgba(11,31,58,.06);
  transition: box-shadow var(--bt-transition), background var(--bt-transition);
  animation: headerSlide .8s var(--bt-ease-out);
}
.bt-header.scrolled {
  box-shadow: 0 10px 40px rgba(11,31,58,.12);
  background: rgb(2 21 43);
}
.bt-navbar { padding: .9rem 0; transition: padding var(--bt-transition); }
.bt-header.scrolled .bt-navbar { padding: .55rem 0; }
.bt-navbar .navbar-brand img { height: 44px; transition: var(--bt-transition); }
.bt-navbar .navbar-brand img:hover { transform: scale(1.04); }

.bt-nav-link {
  color: var(--bt-light) !important; font-family: var(--bt-font-head);
  font-weight: 500; margin: 0 .7rem; font-size: .9rem; position: relative;
  letter-spacing: .01em;
}
.bt-nav-link::after {
  content: ''; position: absolute; left: .7rem; right: .7rem; bottom: -4px;
  height: 2px; background: var(--bt-accent); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform var(--bt-transition);
}
.bt-nav-link:hover::after, .bt-nav-link.active::after { transform: scaleX(1); }
.bt-nav-link:hover, .bt-nav-link.active { color: var(--bt-accent-dark) !important; }

.bt-nav-cta {
  background: var(--bt-grad-accent); color: var(--bt-primary-deep) !important;
  padding: .6rem 1.4rem; border-radius: 50px; font-weight: 600;
  box-shadow: 0 6px 18px rgba(212,162,78,.35);
}
.bt-nav-cta::after { display: none; }
.bt-nav-cta:hover { transform: translateY(-2px); box-shadow: var(--bt-shadow-accent); color: var(--bt-primary-deep) !important; }

/* Dropdown */
.bt-nav .dropdown-menu {
  border: none; border-radius: 16px; box-shadow: 0 24px 60px rgba(11,31,58,.18);
  padding: .7rem; min-width: 270px; margin-top: .8rem;
  animation: dropIn .3s var(--bt-ease);
}
@keyframes dropIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.bt-nav .dropdown-item {
  border-radius: 10px; padding: .7rem 1rem; font-weight: 500; color: var(--bt-primary);
  font-size: .9rem; display: flex; align-items: center; gap: .6rem;
}
.bt-nav .dropdown-item i { color: var(--bt-accent-dark); width: 18px; text-align: center; transition: var(--bt-transition); }
.bt-nav .dropdown-item:hover, .bt-nav .dropdown-item.active {
  background: var(--bt-light); color: var(--bt-accent-dark); transform: translateX(4px);
}
.bt-nav .dropdown-item:hover i { transform: scale(1.2); }

@media (max-width: 991px) {
  .bt-nav .dropdown-menu { box-shadow: none; padding-left: .5rem; margin-top: 0; }
  .bt-nav-cta { display: inline-flex; margin-top: .5rem; }
}

/* ============ Hero — dramatic overlay ============ */
.bt-hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  color: #fff; background-size: cover; background-position: center;
  overflow: hidden;
}
.bt-hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(5,15,31,.94) 0%, rgba(8,24,46,.82) 45%, rgba(11,31,58,.45) 100%);
}
.bt-hero::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(650px circle at 85% 20%, rgba(212,162,78,.16), transparent 60%),
    radial-gradient(500px circle at 10% 90%, rgba(212,162,78,.10), transparent 55%);
  pointer-events: none;
}
.bt-hero .container { position: relative; z-index: 3; }
.bt-hero h1 { color: #fff; font-size: clamp(2.4rem, 5.4vw, 4rem); font-weight: 800; letter-spacing: -.02em; }
.bt-hero h1 span { color: var(--bt-accent-light); }
.bt-hero p { color: #cfd9e6; font-size: 1.12rem; max-width: 580px; }
.bt-hero .hero-badge {
  display: inline-flex; align-items: center; gap: .55rem;
  background: rgba(212,162,78,.14); border: 1px solid rgba(212,162,78,.45);
  color: var(--bt-accent-light); padding: .45rem 1.1rem; border-radius: 50px;
  font-size: .8rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  margin-bottom: 1.4rem; backdrop-filter: blur(4px);
  animation: fadeDown .9s var(--bt-ease-out) both;
}
.bt-hero h1 { animation: fadeUp 1s var(--bt-ease-out) .15s both; }
.bt-hero p { animation: fadeUp 1s var(--bt-ease-out) .3s both; }
.bt-hero .hero-actions { animation: fadeUp 1s var(--bt-ease-out) .45s both; }
.bt-hero-stats {
  margin-top: 3rem; display: flex; gap: 3rem; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,.15); padding-top: 2rem; max-width: 640px;
  animation: fadeUp 1s var(--bt-ease-out) .6s both;
}
.bt-hero-stats .stat h3 { color: var(--bt-accent-light); font-size: 2.1rem; font-weight: 800; margin: 0; position: relative; }
.bt-hero-stats .stat span { color: #aeb9ca; font-size: .85rem; letter-spacing: .04em; }

/* Hero wave bottom */
.bt-hero-wave { position: absolute; bottom: -1px; left: 0; width: 100%; z-index: 2; line-height: 0; }
.bt-hero-wave svg { width: 100%; height: 90px; }

/* ============ Page title (inner pages) ============ */
.bt-page-title {
  background-size: cover; background-position: center; position: relative;
  color: #fff; padding: 8.5rem 0 7rem; text-align: center; overflow: hidden;
}
.bt-page-title::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,15,31,.88) 0%, rgba(8,24,46,.78) 100%);
}
.bt-page-title::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(500px circle at 80% 20%, rgba(212,162,78,.18), transparent 60%);
  pointer-events: none;
}
.bt-page-title .container { position: relative; z-index: 2; }
.bt-page-title h1 { color: #fff; font-size: clamp(2.2rem, 4.6vw, 3.4rem); font-weight: 800; animation: fadeUp 1s var(--bt-ease-out) both; }
.bt-page-title .eyebrow { color: var(--bt-accent-light); animation: fadeDown .9s var(--bt-ease-out) both; }
.bt-breadcrumb { color: #aeb9ca; font-size: .9rem; margin-top: .6rem; animation: fadeUp 1s var(--bt-ease-out) .15s both; }
.bt-breadcrumb a { color: var(--bt-accent-light); }
.bt-breadcrumb a:hover { color: #fff; }
.bt-breadcrumb i { font-size: .7rem; margin: 0 .4rem; color: #7c8696; }

/* ============ Cards ============ */
.bt-card {
  background: #fff; border-radius: var(--bt-radius); overflow: hidden;
  border: 1px solid var(--bt-border); transition: var(--bt-transition);
  position: relative;
}
.bt-card:hover { transform: translateY(-8px); box-shadow: var(--bt-shadow-lg); border-color: transparent; }
.bt-card .card-img-wrap { overflow: hidden; position: relative; }
.bt-card .card-img { height: 240px; object-fit: cover; width: 100%; transition: transform .8s cubic-bezier(.2,.6,.2,1); }
.bt-card:hover .card-img { transform: scale(1.08); }
.bt-card .card-body { padding: 1.8rem; }
.bt-card .card-title { font-size: 1.2rem; font-weight: 700; margin-bottom: .5rem; }
.bt-card .card-title a { color: var(--bt-primary); }
.bt-card .card-title a:hover { color: var(--bt-accent-dark); }
.bt-card .card-tag {
  display: inline-block; font-size: .72rem; color: var(--bt-accent-dark);
  font-weight: 700; text-transform: uppercase; letter-spacing: .1em; margin-bottom: .4rem;
  background: var(--bt-light); padding: .3rem .7rem; border-radius: 50px;
}

/* Service icon card */
.bt-service-card { text-align: center; padding: 2.6rem 1.9rem; }
.bt-service-card .icon {
  width: 84px; height: 84px; margin: 0 auto 1.4rem; border-radius: 22px;
  background: var(--bt-light); display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem; color: var(--bt-primary); transition: var(--bt-transition);
  position: relative;
}
.bt-service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--bt-grad-accent); transform: scaleX(0); transform-origin: left;
  transition: transform var(--bt-transition);
}
.bt-service-card:hover::before { transform: scaleX(1); }
.bt-service-card:hover .icon { background: var(--bt-grad-accent); color: var(--bt-primary-deep); transform: translateY(-6px) rotate(-4deg); box-shadow: var(--bt-shadow-accent); animation: iconPulse .8s var(--bt-ease); }
.bt-service-card h3 { font-size: 1.25rem; margin-bottom: .7rem; }
.bt-service-card p { font-size: .95rem; }

/* Service card with image hover */
.bt-service-card-img { position: relative; cursor: pointer; overflow: hidden; border-radius: var(--bt-radius); }
.bt-service-card-img .backdrop {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  filter: grayscale(1) brightness(.5); transition: var(--bt-transition); z-index: 0;
}
.bt-service-card-img:hover .backdrop { filter: grayscale(0) brightness(.6); transform: scale(1.05); }
.bt-service-card-img .content { position: relative; z-index: 1; padding: 2.6rem 1.9rem; color: #fff; text-align: center; min-height: 260px; display: flex; flex-direction: column; justify-content: center; }
.bt-service-card-img .icon { color: var(--bt-accent-light); font-size: 2.4rem; margin-bottom: 1rem; }
.bt-service-card-img h3 { color: #fff; }
.bt-service-card-img p { color: #d5dce6; }

/* Feature / icon-left */
.bt-feature {
  display: flex; gap: 1.2rem; padding: 1.6rem; border-radius: var(--bt-radius);
  border: 1px solid var(--bt-border); background: #fff; transition: var(--bt-transition);
  height: 100%;
}
.bt-feature:hover { box-shadow: var(--bt-shadow); border-color: transparent; transform: translateY(-4px); }
.bt-feature .f-icon {
  flex-shrink: 0; width: 58px; height: 58px; border-radius: 16px;
  background: var(--bt-light); display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--bt-accent-dark); transition: var(--bt-transition);
}
.bt-feature:hover .f-icon { background: var(--bt-grad-accent); color: var(--bt-primary-deep); animation: iconPulse .8s var(--bt-ease); }
.bt-feature h4 { font-size: 1.05rem; margin-bottom: .3rem; }

/* ============ Stats band ============ */
.bt-stats { background: var(--bt-grad); padding: 4.5rem 0; position: relative; overflow: hidden; }
.bt-stats::after {
  content: ''; position: absolute; bottom: -100px; right: 10%; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(212,162,78,.16), transparent 70%); border-radius: 50%;
}
.bt-stats .bt-counter h3 { color: var(--bt-accent-light); }
.bt-stats .counter-label { color: #c9d4e2; }

/* ============ Counters ============ */
.bt-counter { text-align: center; padding: 1.5rem 1rem; position: relative; z-index: 1; }
.bt-counter h3 {
  font-size: 2.9rem; font-weight: 800; color: var(--bt-primary);
  margin: 0; line-height: 1.1; font-family: var(--bt-font-head);
}
.bt-counter .counter-suffix { color: var(--bt-accent); }
.bt-counter .counter-label { color: var(--bt-text-light); font-weight: 500; letter-spacing: .04em; margin-top: .4rem; }

/* ============ Process ============ */
.bt-process { position: relative; }
.bt-process-step { text-align: center; padding: 1.8rem 1.2rem; position: relative; }
.bt-process-step .num {
  width: 78px; height: 78px; margin: 0 auto 1.3rem; border-radius: 50%;
  background: var(--bt-grad); color: var(--bt-accent-light); font-weight: 800;
  font-size: 1.6rem; display: flex; align-items: center; justify-content: center;
  border: 4px solid var(--bt-white); box-shadow: var(--bt-shadow);
  transition: var(--bt-transition); position: relative;
}
.bt-process-step:hover .num { background: var(--bt-grad-accent); color: var(--bt-primary-deep); transform: translateY(-6px); box-shadow: var(--bt-shadow-accent); }
.bt-process-step h4 { font-size: 1.15rem; margin-bottom: .5rem; }
.section-navy .bt-process-step .num { background: #fff; color: var(--bt-primary); border-color: var(--bt-accent); }
.section-navy .bt-process-step:hover .num { background: var(--bt-grad-accent); color: var(--bt-primary-deep); }

/* ============ CTA band ============ */
.bt-cta {
  background: var(--bt-grad); color: #fff; padding: 5rem 0; position: relative; overflow: hidden;
}
.bt-cta::before {
  content: ''; position: absolute; top: -100px; left: -100px; width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(212,162,78,.2), transparent 70%); border-radius: 50%;
}
.bt-cta::after {
  content: ''; position: absolute; bottom: -140px; right: -80px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(212,162,78,.14), transparent 70%); border-radius: 50%;
}
.bt-cta h2 { color: #fff; position: relative; z-index: 1; }
.bt-cta p { color: #c9d4e2; position: relative; z-index: 1; }
.bt-cta .btn-bt { position: relative; z-index: 1; }

/* ============ Testimonials ============ */
.bt-testimonial {
  background: #fff; border: 1px solid var(--bt-border); border-radius: var(--bt-radius);
  padding: 2.2rem; transition: var(--bt-transition); height: 100%; position: relative;
}
.bt-testimonial::before {
  content: '\201C'; position: absolute; top: 14px; right: 24px;
  font-family: Georgia, serif; font-size: 5rem; line-height: 1; color: var(--bt-accent-light); opacity: .25;
}
.bt-testimonial:hover { box-shadow: var(--bt-shadow); transform: translateY(-5px); }
.bt-testimonial blockquote { font-size: 1rem; color: var(--bt-text); font-style: italic; margin: 1rem 0 1.4rem; }
.bt-testimonial .stars { color: var(--bt-accent); font-size: .9rem; }
.bt-testimonial .author { display: flex; align-items: center; gap: .9rem; }
.bt-testimonial .author img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; border: 2px solid var(--bt-accent); }
.bt-testimonial .author h6 { margin: 0; font-weight: 700; }
.bt-testimonial .author span { font-size: .82rem; color: var(--bt-text-light); }

/* Testimonial slider */
.bt-testimonial-slider { position: relative; }
.bt-testimonial-slider .testimonial-track { display: flex; transition: transform .55s var(--bt-ease); }
.bt-testimonial-slider .testimonial-slide { flex: 0 0 100%; padding: .5rem; }
.bt-testimonial-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 50px; height: 50px; border: none; border-radius: 50%;
  background: var(--bt-grad-accent); color: var(--bt-primary-deep); font-size: 1.1rem;
  cursor: pointer; box-shadow: var(--bt-shadow); transition: var(--bt-transition);
}
.bt-testimonial-arrow:hover { background: var(--bt-primary); color: var(--bt-accent-light); transform: translateY(-50%) scale(1.05); }
.bt-testimonial-arrow.prev { left: -60px; }
.bt-testimonial-arrow.next { right: -60px; }
.bt-testimonial-dots { text-align: center; margin-top: 1.4rem; }
.bt-testimonial-dots button {
  width: 9px; height: 9px; border-radius: 50%; border: none; margin: 0 .3rem;
  background: var(--bt-border); cursor: pointer; transition: var(--bt-transition); padding: 0;
}
.bt-testimonial-dots button.active { background: var(--bt-accent); width: 26px; border-radius: 10px; }

/* ============ Gallery ============ */
.bt-gallery-item { position: relative; border-radius: var(--bt-radius); overflow: hidden; cursor: pointer; box-shadow: var(--bt-shadow); }
.bt-gallery-item img { width: 100%; height: 280px; object-fit: cover; transition: transform .8s cubic-bezier(.2,.6,.2,1); }
.bt-gallery-item:hover img { transform: scale(1.1); }
.bt-gallery-item .overlay {
  position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(5,15,31,.85) 100%);
  opacity: 0; display: flex; align-items: flex-end; padding: 1.4rem;
  transition: var(--bt-transition); color: #fff;
}
.bt-gallery-item .overlay span {
  font-family: var(--bt-font-head); font-weight: 600; font-size: 1rem; transform: translateY(12px); transition: var(--bt-transition);
}
.bt-gallery-item .overlay i { position: absolute; top: 18px; right: 18px; font-size: 1.2rem; color: var(--bt-accent-light); }
.bt-gallery-item:hover .overlay { opacity: 1; }
.bt-gallery-item:hover .overlay span { transform: none; }

/* ============ Forms ============ */
.bt-form .form-control, .bt-form .form-select {
  border-radius: 12px; border: 1px solid var(--bt-border); padding: .85rem 1.1rem;
  font-family: var(--bt-font-body); font-size: .95rem; transition: var(--bt-transition);
  background: #fbfbfd;
}
.bt-form .form-control:focus, .bt-form .form-select:focus {
  border-color: var(--bt-accent); box-shadow: 0 0 0 .25rem rgba(212,162,78,.16);
  background: #fff;
}
.bt-form label { font-weight: 600; color: var(--bt-primary); margin-bottom: .4rem; font-size: .9rem; font-family: var(--bt-font-head); }

/* ============ Contact info ============ */
.bt-contact-info {
  background: var(--bt-grad); color: #c9d4e2; border-radius: var(--bt-radius);
  padding: 2.4rem; height: 100%; position: relative; overflow: hidden;
}
.bt-contact-info::after {
  content: ''; position: absolute; bottom: -80px; right: -80px; width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(212,162,78,.2), transparent 70%); border-radius: 50%;
}
.bt-contact-info h4 { color: #fff; }
.bt-contact-info .item { display: flex; gap: 1.1rem; margin-bottom: 1.6rem; position: relative; z-index: 1; }
.bt-contact-info .item i {
  color: var(--bt-accent-light); font-size: 1.3rem; margin-top: .25rem;
  background: rgba(212,162,78,.14); height: 46px; width: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: var(--bt-transition);
}
.bt-contact-info .item:hover i { background: var(--bt-grad-accent); color: var(--bt-primary-deep); transform: translateY(-3px); }
.bt-contact-info .item h6 { color: #fff; margin-bottom: .15rem; }

/* ============ Sidebar ============ */
.bt-sidebar-item { background: #fff; border: 1px solid var(--bt-border); border-radius: var(--bt-radius); padding: 1.8rem; margin-bottom: 1.5rem; box-shadow: var(--bt-shadow); }
.bt-sidebar-item h4 { font-size: 1.15rem; margin-bottom: 1.1rem; padding-bottom: .7rem; border-bottom: 2px solid var(--bt-accent); position: relative; }
.bt-sidebar-service { display: flex; align-items: center; gap: .6rem; padding: .7rem .9rem; border-radius: 10px; color: var(--bt-primary); font-weight: 500; margin-bottom: .4rem; transition: var(--bt-transition); }
.bt-sidebar-service:hover, .bt-sidebar-service.active { background: var(--bt-primary); color: #fff; transform: translateX(4px); }
.bt-sidebar-service i { color: var(--bt-accent); }

/* ============ Fooder ============ */
.bt-footer { background: var(--bt-primary-deep); color: #aeb9ca; padding: 5rem 0 2rem; position: relative; overflow: hidden; }
.bt-footer::before {
  content: ''; position: absolute; top: -120px; left: -120px; width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(212,162,78,.12), transparent 70%); border-radius: 50%;
}
.bt-footer h5 { color: #fff; margin-bottom: 1.3rem; position: relative; }
.bt-footer h5::after { content: ''; display: block; width: 34px; height: 2px; background: var(--bt-accent); margin-top: .5rem; }
.bt-footer a { color: #aeb9ca; }
.bt-footer a:hover { color: var(--bt-accent); padding-left: 4px; }
.bt-footer ul { list-style: none; padding: 0; margin: 0; }
.bt-footer ul li { margin-bottom: .65rem; transition: var(--bt-transition); }
.bt-footer .social a {
  display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center;
  background: rgba(255,255,255,.08); border-radius: 10px; margin-right: .4rem; transition: var(--bt-transition);
  color: #aeb9ca;
}
.bt-footer .social a:hover { background: var(--bt-accent); color: var(--bt-primary-deep); transform: translateY(-4px); }
.bt-footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 3rem; padding-top: 1.6rem; }

/* ============ Blog ============ */
.bt-blog-meta { font-size: .82rem; color: var(--bt-text); }
.bt-blog-meta i { color: var(--bt-accent-dark); margin-right: .3rem; }

/* ============ Filters ============ */
.bt-filter-btn {
  border: 1px solid var(--bt-border); background: #fff; color: var(--bt-primary);
  padding: .55rem 1.4rem; border-radius: 50px; font-weight: 600; font-size: .88rem; margin: .25rem;
  transition: var(--bt-transition);
}
.bt-filter-btn:hover, .bt-filter-btn.active { background: var(--bt-grad-accent); border-color: transparent; color: var(--bt-primary-deep); transform: translateY(-2px); box-shadow: var(--bt-shadow-accent); }

/* ============ Tech item ============ */
.bt-tech-item {
  text-align: center; padding: 2.2rem 1.6rem; background: #fff;
  border: 1px solid var(--bt-border); border-radius: var(--bt-radius); height: 100%;
  transition: var(--bt-transition);
}
.bt-tech-item:hover { box-shadow: var(--bt-shadow-lg); transform: translateY(-6px); }
.bt-tech-item .icon {
  width: 74px; height: 74px; margin: 0 auto 1.2rem; border-radius: 50%;
  background: var(--bt-primary); color: var(--bt-accent-light); display: flex;
  align-items: center; justify-content: center; font-size: 1.9rem; transition: var(--bt-transition);
}
.bt-tech-item:hover .icon { background: var(--bt-grad-accent); color: var(--bt-primary-deep); animation: iconPulse .8s var(--bt-ease); }
.bt-tech-item h4 { font-size: 1.1rem; margin-bottom: .4rem; }
.bt-tech-item p { margin-bottom: 0; font-size: .92rem; }

/* White tech cards inside a navy section keep readable dark text */
.section-navy .bt-tech-item h4 { color: var(--bt-primary); }
.section-navy .bt-tech-item p { color: var(--bt-text); }

/* ============ Areas served ============ */
.bt-area-card {
  background: var(--bt-grad); color: #c9d4e2; border-radius: var(--bt-radius);
  padding: 2.4rem; height: 100%; position: relative; overflow: hidden; transition: var(--bt-transition);
}
.bt-area-card::after {
  content: ''; position: absolute; right: -40px; bottom: -40px; width: 140px; height: 140px;
  background: rgba(212,162,78,.16); border-radius: 50%; transition: var(--bt-transition);
}
.bt-area-card:hover::after { transform: scale(1.4); }
.bt-area-card h3 { color: #fff; margin-bottom: .8rem; }
.bt-area-card .area-icon { color: var(--bt-accent-light); }
.bt-area-card ul { list-style: none; padding: 0; margin: 0; columns: 2; }
.bt-area-card li { padding: .3rem 0; font-size: .92rem; }
.bt-area-card li i { color: var(--bt-accent); margin-right: .4rem; }

/* ============ Trust badge ============ */
.bt-trust { border-left: 4px solid var(--bt-accent); background: #fff; padding: 1.3rem 1.5rem; border-radius: 0 var(--bt-radius) var(--bt-radius) 0; box-shadow: var(--bt-shadow); transition: var(--bt-transition); height: 100%; }
.bt-trust:hover { transform: translateX(6px); box-shadow: var(--bt-shadow-lg); }
.bt-trust h4 { font-size: 1.05rem; margin-bottom: .2rem; }
.bt-trust p { margin: 0; font-size: .9rem; }

/* ============ FAQ ============ */
.bt-faq .accordion-item { border: 1px solid var(--bt-border); border-radius: 14px !important; overflow: hidden; margin-bottom: 1rem; }
.bt-faq .accordion-button { font-weight: 600; color: var(--bt-primary); }
.bt-faq .accordion-button:not(.collapsed) { background: var(--bt-primary); color: #fff; box-shadow: none; }
.bt-faq .accordion-button:focus { box-shadow: none; }

/* ============ Checklist ============ */
.bt-checklist { list-style: none; padding: 0; margin: 0; }
.bt-checklist li { padding: .45rem 0; display: flex; gap: .6rem; align-items: flex-start; }
.bt-checklist li i { color: var(--bt-accent-dark); margin-top: .3rem; }

/* ============ Back to top ============ */
#bt-totop {
  position: fixed; bottom: 24px; right: 24px; width: 48px; height: 48px; z-index: 999;
  background: var(--bt-grad-accent); color: var(--bt-primary-deep); border: none; border-radius: 12px;
  font-size: 1.3rem; cursor: pointer; box-shadow: var(--bt-shadow-accent); opacity: 0; visibility: hidden;
  transition: var(--bt-transition);
}
#bt-totop.show { opacity: 1; visibility: visible; }
#bt-totop:hover { background: var(--bt-primary); color: var(--bt-accent-light); transform: translateY(-4px); }

/* ============================================================
   FULL SITE ANIMATION SYSTEM
============================================================ */

/* Scroll reveal base */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .8s var(--bt-ease-out), transform .8s var(--bt-ease-out);
  will-change: opacity, transform;
}
[data-reveal].revealed { opacity: 1; transform: none; }

/* Reveal variants */
[data-reveal="left"] { transform: translateX(-40px); }
[data-reveal="left"].revealed { transform: none; }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="right"].revealed { transform: none; }
[data-reveal="zoom"] { transform: scale(.9); }
[data-reveal="zoom"].revealed { transform: scale(1); }
[data-reveal="fade"] { transform: none; opacity: 0; }
[data-reveal="fade"].revealed { opacity: 1; }

/* Stagger delays */
[data-reveal].d-1 { transition-delay: .08s; }
[data-reveal].d-2 { transition-delay: .16s; }
[data-reveal].d-3 { transition-delay: .24s; }
[data-reveal].d-4 { transition-delay: .32s; }
[data-reveal].d-5 { transition-delay: .40s; }
[data-reveal].d-6 { transition-delay: .48s; }

/* Keyframe load animations */
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: none; } }
@keyframes fadeDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes zoomIn { from { opacity: 0; transform: scale(.9); } to { opacity: 1; transform: scale(1); } }
@keyframes headerSlide { from { opacity: 0; transform: translateY(-100%); } to { opacity: 1; transform: none; } }
@keyframes iconPulse { 0% { transform: scale(1); } 50% { transform: scale(1.15); } 100% { transform: scale(1); } }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes spinSlow { from { transform: rotate(0); } to { transform: rotate(360deg); } }
@keyframes shimmer { 0% { background-position: -400px 0; } 100% { background-position: 400px 0; } }
@keyframes pulseGlow { 0%,100% { box-shadow: 0 0 0 0 rgba(212,162,78,.5); } 50% { box-shadow: 0 0 0 14px rgba(212,162,78,0); } }

/* Floating element utility */
.bt-float { animation: floatY 5s ease-in-out infinite; }
.bt-pulse { animation: pulseGlow 2.4s ease-in-out infinite; }

/* Animated background gradient */
.bt-animated-bg {
  background: linear-gradient(120deg, #0b1f3a, #133a63, #0b1f3a, #1a4a7a, #0b1f3a);
  background-size: 300% 300%;
  animation: gradientShift 18s ease infinite;
}
@keyframes gradientShift { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }

/* Image with subtle zoom on reveal */
.bt-img-zoom { overflow: hidden; border-radius: var(--bt-radius); }
.bt-img-zoom img { transition: transform 1s var(--bt-ease-out); }
.bt-img-zoom:hover img { transform: scale(1.07); }

/* Circular rotating badge */
.bt-rotate { animation: spinSlow 14s linear infinite; }

/* Card image shimmer */
.bt-shimmer::after {
  content: ''; position: absolute; top: 0; left: 0; height: 100%; width: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
  background-size: 400px 100%; animation: shimmer 2.6s infinite; pointer-events: none;
}

/* Hover lift utility */
.bt-lift { transition: var(--bt-transition); }
.bt-lift:hover { transform: translateY(-8px); box-shadow: var(--bt-shadow-lg); }

/* Button shine sweep */
.btn-bt::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.4), transparent);
  transition: left .6s var(--bt-ease); transform: skewX(-20deg);
}
.btn-bt:hover::after { left: 150%; }

/* Arrow link underline */
.bt-arrow-link { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; color: var(--bt-primary); font-family: var(--bt-font-head); }
.bt-arrow-link i { transition: transform var(--bt-transition); }
.bt-arrow-link:hover i { transform: translateX(6px); }
.bt-arrow-link::after { content: ''; position: absolute; display: none; }

/* ============ Project cards (image overlay) ============ */
.bt-project-card {
  position: relative; border-radius: var(--bt-radius); overflow: hidden;
  height: 100%; min-height: 400px; display: block; box-shadow: var(--bt-shadow);
}
.bt-project-card img { width: 100%; height: 100%; min-height: 400px; object-fit: cover; transition: transform .9s cubic-bezier(.2,.6,.2,1); }
.bt-project-card::after {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(185deg, transparent 30%, rgba(5,15,31,.88) 100%);
  opacity: .75; transition: var(--bt-transition);
}
.bt-project-card:hover::after { opacity: .94; }
.bt-project-card:hover img { transform: scale(1.09); }
.bt-project-card .proj-body { position: absolute; left: 0; right: 0; bottom: 0; padding: 1.9rem; z-index: 2; color: #fff; transform: translateY(8px); transition: var(--bt-transition); }
.bt-project-card:hover .proj-body { transform: none; }
.bt-project-card .proj-tag { display: inline-flex; align-items: center; gap: .45rem; font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bt-accent-light); margin-bottom: .5rem; }
.bt-project-card .proj-tag::before { content: ''; width: 24px; height: 2px; background: var(--bt-accent); display: inline-block; }
.bt-project-card h3 { color: #fff; font-size: 1.35rem; margin-bottom: .4rem; }
.bt-project-card p { color: #d5dce6; font-size: .92rem; margin-bottom: .95rem; max-width: 94%; }
.bt-project-card .proj-link { display: inline-flex; align-items: center; gap: .5rem; color: #fff; font-weight: 600; font-family: var(--bt-font-head); font-size: .9rem; }
.bt-project-card .proj-link i { color: var(--bt-accent-light); transition: transform var(--bt-transition); }
.bt-project-card:hover .proj-link i { transform: translateX(5px); }
.bt-project-card .proj-arrow {
  position: absolute; top: 1.5rem; right: 1.5rem; z-index: 2; width: 48px; height: 48px;
  border-radius: 50%; background: var(--bt-grad-accent); color: var(--bt-primary-deep);
  display: flex; align-items: center; justify-content: center; opacity: 0;
  transform: translateY(10px) rotate(-45deg); transition: var(--bt-transition); box-shadow: var(--bt-shadow-accent);
}
.bt-project-card:hover .proj-arrow { opacity: 1; transform: none; }

/* Project stats strip */
.bt-proj-stats { background: var(--bt-light); border-block: 1px solid var(--bt-border); }
.bt-proj-stat { text-align: center; padding: 1.5rem 1rem; position: relative; }
.bt-proj-stat:not(:last-child)::after { content: ''; position: absolute; right: 0; top: 24%; height: 52%; width: 1px; background: var(--bt-border); }
.bt-proj-stat h3 { font-size: 2.3rem; font-weight: 800; color: var(--bt-primary); margin-bottom: .1rem; }
.bt-proj-stat h3 span { color: var(--bt-accent); }
.bt-proj-stat p { margin: 0; color: var(--bt-text-light); font-weight: 500; font-size: .9rem; }

/* ============ Gallery masonry ============ */
.bt-gallery-masonry { columns: 3 290px; column-gap: 1.4rem; }
.bt-gallery-masonry .masonry-item {
  break-inside: avoid; margin-bottom: 1.4rem; position: relative; display: block;
  border-radius: var(--bt-radius); overflow: hidden; cursor: pointer; box-shadow: var(--bt-shadow);
}
.bt-gallery-masonry .masonry-item img { width: 100%; display: block; transition: transform .85s cubic-bezier(.2,.6,.2,1); }
.bt-gallery-masonry .masonry-item:hover img { transform: scale(1.09); }
.bt-gallery-masonry .masonry-item .m-icon {
  position: absolute; z-index: 2; top: 1.2rem; right: 1.2rem; width: 42px; height: 42px;
  border-radius: 50%; background: var(--bt-grad-accent); color: var(--bt-primary-deep);
  display: flex; align-items: center; justify-content: center; opacity: 0; transform: scale(.7) rotate(-90deg);
  transition: var(--bt-transition); box-shadow: var(--bt-shadow-accent);
}
.bt-gallery-masonry .masonry-item:hover .m-icon { opacity: 1; transform: none; }
.bt-gallery-masonry .masonry-item .m-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, transparent 42%, rgba(5,15,31,.9) 100%);
  opacity: 0; display: flex; align-items: flex-end; justify-content: space-between;
  gap: 1rem; padding: 1.4rem 1.5rem; color: #fff; transition: var(--bt-transition);
}
.bt-gallery-masonry .masonry-item:hover .m-overlay { opacity: 1; }
.bt-gallery-masonry .m-overlay .m-title { font-family: var(--bt-font-head); font-weight: 600; font-size: 1.02rem; }
.bt-gallery-masonry .m-overlay .m-tag { font-size: .76rem; color: var(--bt-accent-light); letter-spacing: .06em; text-transform: uppercase; margin-top: .2rem; }
@media (max-width: 767px) { .bt-gallery-masonry { columns: 2 210px; column-gap: 1rem; } .bt-gallery-masonry .masonry-item { margin-bottom: 1rem; } }
@media (max-width: 460px) { .bt-gallery-masonry { columns: 1; } }

/* ============ Contact form card / split ============ */
.bt-form-card { background: #fff; border: 1px solid var(--bt-border); border-radius: var(--bt-radius); box-shadow: var(--bt-shadow-lg); padding: 3rem 2.6rem; position: relative; overflow: hidden; }
.bt-form-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: var(--bt-grad-accent); z-index: 1; }
.bt-form-note { display: flex; gap: .95rem; padding: 1.15rem 1.35rem; border-radius: 14px; background: var(--bt-light); border: 1px solid var(--bt-border); margin-bottom: 1.6rem; }
.bt-form-note i { color: var(--bt-accent-dark); font-size: 1.35rem; margin-top: .15rem; }
.bt-form-note p { margin: 0; font-size: .9rem; }
.bt-contact-info-soft { background: var(--bt-light); border: 1px solid var(--bt-border); border-radius: var(--bt-radius); padding: 2.2rem; height: 100%; }
.bt-faq .accordion-item { border: 1px solid var(--bt-border); border-radius: 14px !important; overflow: hidden; margin-bottom: .9rem; background: #fff; }
.bt-faq .accordion-button { font-family: var(--bt-font-head); font-weight: 600; color: var(--bt-primary); box-shadow: none; }

/* ============ Blog ============ */
.bt-blog-featured { border-radius: var(--bt-radius); overflow: hidden; background: var(--bt-primary-deep); color: #fff; height: 100%; display: flex; flex-direction: column; box-shadow: var(--bt-shadow-lg); }
.bt-blog-featured .bf-img { overflow: hidden; }
.bt-blog-featured img { width: 100%; height: 320px; object-fit: cover; transition: transform .9s var(--bt-ease-out); }
.bt-blog-featured:hover img { transform: scale(1.06); }
.bt-blog-featured .bf-body { padding: 2.1rem 2.1rem 2.4rem; flex: 1; display: flex; flex-direction: column; }
.bt-blog-featured h3 { color: #fff; font-size: 1.45rem; line-height: 1.3; margin: .85rem 0 .6rem; }
.bt-blog-featured h3 a { color: #fff; }
.bt-blog-featured h3 a:hover { color: var(--bt-accent-light); }
.bt-blog-featured p { color: #c9d4e2; }
.bt-blog-featured .bt-blog-meta { color: #aeb9ca; }
.bt-blog-featured a.bt-arrow-link { color: var(--bt-accent-light); margin-top: auto; padding-top: .6rem; }
.bt-blog-featured a.bt-arrow-link:hover { color: #fff; }
.cat-badge { display: inline-block; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--bt-accent-dark); background: rgba(212,162,78,.16); padding: .3rem .75rem; border-radius: 30px; }
.bt-blog-featured .cat-badge { color: var(--bt-accent-light); background: rgba(212,162,78,.2); }
.bt-blog-meta .sep { margin: 0 .45rem; color: var(--bt-border); }

/* Newsletter band */
.bt-newsletter { background: var(--bt-grad-accent); border-radius: var(--bt-radius); padding: 3.3rem 2.8rem; position: relative; overflow: hidden; }
.bt-newsletter::after { content: '\f003'; font-family: 'FontAwesome'; position: absolute; right: 3rem; bottom: -1.5rem; font-size: 9rem; color: rgba(255,255,255,.18); line-height: 1; }
.bt-newsletter h3 { color: var(--bt-primary-deep); margin-bottom: .4rem; }
.bt-newsletter p { color: var(--bt-primary); max-width: 620px; }
.bt-newsletter .nl-form { display: flex; gap: .6rem; max-width: 520px; position: relative; z-index: 1; }
.bt-newsletter .nl-form input { flex: 1; border: none; border-radius: 60px; padding: .95rem 1.5rem; font-family: var(--bt-font-body); font-size: .95rem; outline: none; }
.bt-newsletter .nl-form .btn-bt { background: var(--bt-primary); color: #fff; }
.bt-newsletter .nl-form .btn-bt:hover { background: var(--bt-primary-dark); color: var(--bt-accent-light); }
@media (max-width: 575px) {
  .bt-form-card { padding: 2.2rem 1.5rem; }
  .bt-newsletter { padding: 2.6rem 1.6rem; }
  .bt-newsletter .nl-form { flex-direction: column; }
  .bt-proj-stat:not(:last-child)::after { display: none; }
}

/* ============ Responsive ============ */
@media (max-width: 991px) {
  .section { padding: 4rem 0; }
  .bt-hero { min-height: 72vh; }
  .bt-testimonial-arrow.prev { left: 0; }
  .bt-testimonial-arrow.next { right: 0; }
  .bt-hero-stats { gap: 1.8rem; }
}
@media (max-width: 575px) {
  .bt-hero p { font-size: 1rem; }
  .bt-hero-stats .stat h3 { font-size: 1.6rem; }
  .bt-counter h3 { font-size: 2.2rem; }
}

/* Stagger delays */
[data-reveal].d-6 { transition-delay: .48s; }
[data-reveal].d-7 { transition-delay: .56s; }
[data-reveal].d-8 { transition-delay: .64s; }

/* ============ Home: mobile refinements ============ */
@media (max-width: 991px) {
  .bt-hero { min-height: 80vh; }
}

@media (max-width: 575px) {
  html, body { overflow-x: hidden; }

  .section { padding: 4.2rem 0; }
  .sec-head { margin-bottom: 2.4rem; }
  .section-title { font-size: 1.85rem; }
  .section-lead { font-size: .98rem; }

  /* ---- Hero ---- */
  .bt-hero {
    min-height: auto;
    padding: 6rem 0 6.5rem;
    align-items: center;
    text-align: left;
  }
  .bt-hero h1 { font-size: clamp(1.9rem, 7.6vw, 2.6rem); line-height: 1.18; }
  .bt-hero p { max-width: 100%; }
  .bt-hero .hero-badge { letter-spacing: .05em; padding: .4rem .9rem; }

  .bt-hero .hero-actions { width: 100%; flex-direction: column; align-items: stretch; }
  .bt-hero .hero-actions .btn-bt { width: 100%; justify-content: center; }

  .bt-hero-wave svg { height: 44px; }

  .bt-hero-stats {
    width: 100%; max-width: 100%;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 1.5rem 1.4rem;
    margin-top: 2.2rem; padding-top: 1.6rem;
  }
  .bt-hero-stats .stat { display: flex; flex-direction: column; }
  .bt-hero-stats .stat:last-child { grid-column: 1 / -1; align-items: center; }
  .bt-hero-stats .stat h3 { font-size: 1.8rem; }
  .bt-hero-stats .stat span { display: block; font-size: .78rem; }

  /* ---- Buttons ---- */
  .btn-bt { padding: .9rem 1.5rem; }
  .btn-bt-lg { padding: 1rem 1.7rem; font-size: .95rem; }

  /* ---- Footer ---- */
  .bt-footer-bottom { gap: .6rem; justify-content: center; text-align: center; }
  .bt-footer .container .row .col-lg-2, .bt-footer .container .row .col-lg-3 { margin-bottom: .5rem; }
}

@media (max-width: 400px) {
  .bt-hero-stats { grid-template-columns: 1fr; }
}

/* ============ Mobile navbar toggler (visible + styled) ============ */
.bt-navbar .navbar-toggler {
  border-color: rgba(11,31,58,.18);
  color: var(--bt-primary);
  box-shadow: none;
}
.bt-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(11,31,58,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.4' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e");
}
.bt-header.scrolled .navbar-toggler { border-color: rgba(11,31,58,.2); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}