/* ============================
   HK Tax Consultancy — Design System
   ============================ */
:root{
  --navy:#0a1f44;
  --navy-dark:#061530;
  --navy-light:#123a7a;
  --blue:#1d4ed8;
  --gold:#c99a3c;
  --gold-light:#e6c874;
  --grey-50:#f8fafc;
  --grey-100:#f1f5f9;
  --grey-200:#e2e8f0;
  --grey-500:#64748b;
  --grey-700:#334155;
  --text:#1e293b;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-sm:0 6px 18px rgba(10,31,68,.06);
  --shadow-md:0 16px 40px rgba(10,31,68,.10);
  --shadow-lg:0 24px 60px rgba(10,31,68,.16);
  --transition:.35s cubic-bezier(.4,0,.2,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',sans-serif;
  color:var(--text);
  line-height:1.7;
  background:#fff;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:'Poppins',sans-serif;font-weight:700;color:var(--navy)}
a{transition:var(--transition)}
img{max-width:100%}

.section{padding:100px 0}
.section.alt{background:var(--grey-50)}

.section-tag{
  display:inline-block;
  font-size:.8rem;
  font-weight:600;
  letter-spacing:1.5px;
  text-transform:uppercase;
  color:var(--gold);
  background:rgba(201,154,60,.1);
  padding:6px 16px;
  border-radius:30px;
  margin-bottom:14px;
}
.section-tag-light{background:rgba(255,255,255,.12);color:var(--gold-light)}
.section-title{font-size:2.4rem;margin-bottom:18px;letter-spacing:-.5px}
.section-text{color:var(--grey-500);font-size:1.05rem}

/* ===== Top Bar ===== */
.top-bar{
  background:var(--navy-dark);
  color:#cbd5e1;
  font-size:.85rem;
  padding:8px 0;
}
.top-bar-item i{color:var(--gold-light);margin-right:6px}
.top-bar .divider{display:inline-block;width:1px;height:12px;background:rgba(255,255,255,.25);margin:0 16px}
.top-bar-social a{color:#cbd5e1;margin-left:16px;font-size:.95rem}
.top-bar-social a:hover{color:var(--gold-light)}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(10,31,68,.97);
  backdrop-filter:blur(8px);
  transition:var(--transition);
  box-shadow:0 4px 20px rgba(0,0,0,.15);
}
.site-header.scrolled{padding:0}
.navbar{padding:14px 0}
.navbar-brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:44px;height:44px;
  background:linear-gradient(135deg,var(--gold),var(--gold-light));
  color:var(--navy-dark);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.1rem;font-family:'Poppins',sans-serif;
}
.brand-text{color:#fff;font-weight:700;font-size:1.2rem;font-family:'Poppins',sans-serif}
.brand-text em{color:var(--gold-light);font-style:normal;font-weight:400}
.nav-link{color:#e2e8f0!important;font-weight:500;margin:0 4px;position:relative}
.nav-link::after{
  content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--gold);transition:var(--transition)
}
.nav-link:hover{color:var(--gold-light)!important}
.nav-link:hover::after{width:100%}
.btn-primary-cta{
  background:linear-gradient(135deg,var(--gold),var(--gold-light));
  color:var(--navy-dark)!important;
  font-weight:700;
  padding:10px 24px;
  border-radius:30px;
  border:none;
}
.btn-primary-cta:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(201,154,60,.35)}

/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:var(--navy-dark);
}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 15% 20%,rgba(201,154,60,.18) 0,transparent 45%),
    radial-gradient(circle at 85% 80%,rgba(29,78,216,.35) 0,transparent 50%),
    linear-gradient(135deg,var(--navy-dark) 0%,var(--navy) 55%,var(--navy-light) 100%);
}
.hero-bg::before{
  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:48px 48px;
  mask-image:radial-gradient(circle at 60% 40%,#000 0%,transparent 70%);
}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(6,21,48,.55) 100%)}
.hero-content{position:relative;z-index:2;padding:60px 0}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15);
  color:var(--gold-light);
  padding:8px 18px;border-radius:30px;
  font-size:.85rem;font-weight:600;margin-bottom:24px;
}
.hero-title{
  font-size:4.2rem;
  color:#fff;
  font-weight:800;
  letter-spacing:-1.5px;
  margin-bottom:10px;
}
.hero-subtitle{font-size:1.55rem;color:var(--gold-light);font-weight:500;margin-bottom:26px}
.hero-objective{
  color:#cbd5e1;font-size:1.1rem;font-style:italic;max-width:760px;
  border-left:3px solid var(--gold);padding-left:20px;margin-bottom:36px;
}
.btn-cta-primary{
  background:linear-gradient(135deg,var(--gold),var(--gold-light));
  color:var(--navy-dark);
  font-weight:700;padding:15px 32px;border-radius:12px;border:none;
  display:inline-flex;align-items:center;gap:10px;
}
.btn-cta-primary:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(201,154,60,.4);color:var(--navy-dark)}
.btn-cta-outline{
  background:transparent;
  border:2px solid rgba(255,255,255,.4);
  color:#fff;font-weight:700;padding:13px 30px;border-radius:12px;
  display:inline-flex;align-items:center;gap:10px;
}
.btn-cta-outline:hover{background:#fff;color:var(--navy);border-color:#fff;transform:translateY(-3px)}
.hero-scroll{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:2;
  animation:bounce 2s infinite;
}
.hero-scroll a{color:#fff;font-size:1.6rem;opacity:.7}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,-10px)}}

/* ===== About ===== */
.about-image-wrap{position:relative}
.about-image{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;object-fit:cover;aspect-ratio:4/3}
.about-badge{
  position:absolute;bottom:20px;right:20px;
  z-index:3;
  background:var(--navy);color:#fff;
  border-radius:var(--radius-md);
  padding:18px 24px;
  display:flex;align-items:center;gap:14px;
  box-shadow:var(--shadow-lg);
}
.about-badge i{font-size:1.8rem;color:var(--gold-light)}
.about-badge strong{display:block;font-size:1.4rem;font-family:'Poppins',sans-serif}
.about-badge span{font-size:.8rem;color:#cbd5e1}
.about-counters{margin-top:8px}
.counter-box h3{font-size:2.1rem;color:var(--navy);margin-bottom:2px}
.counter-box h3 .counter{color:var(--blue)}
.counter-box p{color:var(--grey-500);font-size:.9rem;margin:0}

/* ===== Vision ===== */
.vision-section{
  position:relative;
  padding:110px 0;
  background:linear-gradient(135deg,var(--navy-dark),var(--navy) 60%,var(--navy-light));
  overflow:hidden;
}
.vision-section::before{
  content:'';position:absolute;width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,154,60,.15),transparent 70%);
  top:-150px;right:-150px;
}
.vision-icon{
  width:80px;height:80px;margin:0 auto 24px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:2rem;color:var(--gold-light);
}
.vision-text{color:#cbd5e1;font-size:1.2rem;font-style:italic;line-height:1.8}

/* ===== Services ===== */
.service-card{
  background:#fff;
  border-radius:var(--radius-lg);
  padding:36px 30px;
  height:100%;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--grey-200);
  transition:var(--transition);
}
.service-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.service-icon{
  width:64px;height:64px;
  background:linear-gradient(135deg,var(--navy),var(--navy-light));
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;color:var(--gold-light);
  margin-bottom:22px;
  transition:var(--transition);
}
.service-card:hover .service-icon{
  background:linear-gradient(135deg,var(--gold),var(--gold-light));
  color:var(--navy-dark);
  transform:rotate(-6deg) scale(1.05);
}
.service-card h3{font-size:1.25rem;margin-bottom:12px}
.service-card p{color:var(--grey-500);font-size:.95rem;margin-bottom:20px}
.service-link{
  color:var(--navy);font-weight:600;text-decoration:none;font-size:.92rem;
  display:inline-flex;align-items:center;gap:6px;
}
.service-link i{transition:var(--transition)}
.service-link:hover{color:var(--gold)}
.service-link:hover i{transform:translateX(4px)}

/* ===== Why Choose Us ===== */
.why-card{
  background:#fff;
  border-radius:var(--radius-md);
  padding:32px 26px;
  text-align:center;
  height:100%;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.why-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.why-card i{font-size:2.2rem;color:var(--gold);margin-bottom:16px;display:inline-block}
.why-card h4{font-size:1.1rem;margin-bottom:8px}
.why-card p{color:var(--grey-500);font-size:.92rem;margin:0}

/* ===== Statistics ===== */
.stats-section{
  background:linear-gradient(135deg,var(--navy-dark),var(--navy));
  padding:80px 0;
}
.stat-item h3{
  font-size:3rem;color:var(--gold-light);font-family:'Poppins',sans-serif;margin-bottom:6px;
}
.stat-item p{color:#cbd5e1;font-weight:500;margin:0;letter-spacing:.5px}

/* ===== Gallery ===== */
.gallery-item{
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  cursor:pointer;
  aspect-ratio:4/3;
}
.gallery-item img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.gallery-item:hover img{transform:scale(1.1)}
.gallery-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,31,68,0) 30%,rgba(10,31,68,.85) 100%);
  display:flex;flex-direction:column;align-items:center;justify-content:flex-end;
  padding-bottom:22px;
  color:#fff;
  opacity:0;
  transition:var(--transition);
}
.gallery-item:hover .gallery-overlay{opacity:1}
.gallery-overlay i{font-size:1.6rem;margin-bottom:8px;color:var(--gold-light)}
.gallery-overlay span{font-weight:600;font-size:.95rem}

.lightbox{
  position:fixed;inset:0;z-index:2000;
  background:rgba(6,21,48,.94);
  display:none;align-items:center;justify-content:center;
  flex-direction:column;
  padding:30px;
}
.lightbox.active{display:flex}
.lightbox img{max-width:88vw;max-height:78vh;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox-caption{color:#fff;margin-top:18px;font-weight:500}
.lightbox-close{
  position:absolute;top:24px;right:28px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:#fff;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;
}
.lightbox-close:hover{background:var(--gold);color:var(--navy-dark)}

/* ===== Founder ===== */
.founder-photo-wrap{position:relative;max-width:340px;margin:0 auto}
.founder-avatar{
  width:100%;aspect-ratio:1/1;
  background:linear-gradient(135deg,var(--navy),var(--navy-light));
  border-radius:var(--radius-lg);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-lg);
  position:relative;z-index:2;
}
.founder-avatar span{
  font-family:'Poppins',sans-serif;font-weight:800;font-size:4rem;
  color:var(--gold-light);letter-spacing:2px;
}
.founder-frame{
  position:absolute;top:20px;left:20px;right:-20px;bottom:-20px;
  border:3px solid var(--gold);
  border-radius:var(--radius-lg);
  z-index:1;
}
.founder-role{color:var(--gold);font-weight:600;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.founder-stats{margin-top:20px}
.founder-stat{
  background:var(--grey-50);
  border:1px solid var(--grey-200);
  border-radius:var(--radius-sm);
  padding:14px 16px;
  font-weight:600;color:var(--navy);
  display:flex;align-items:center;gap:10px;
}
.founder-stat i{color:var(--gold)}

/* ===== Testimonials ===== */
.testimonial-card{
  background:#fff;
  border-radius:var(--radius-lg);
  padding:34px 30px;
  height:100%;
  box-shadow:var(--shadow-sm);
  position:relative;
  transition:var(--transition);
}
.testimonial-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.quote-icon{font-size:2rem;color:var(--gold);opacity:.4;margin-bottom:8px}
.stars{color:var(--gold);margin-bottom:14px;font-size:.9rem}
.testimonial-card p{color:var(--grey-700);font-style:italic;margin-bottom:24px}
.testimonial-author{display:flex;align-items:center;gap:14px}
.author-avatar{
  width:46px;height:46px;border-radius:50%;
  background:linear-gradient(135deg,var(--navy),var(--navy-light));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.9rem;
}
.testimonial-author h5{font-size:1rem;margin:0}
.testimonial-author span{font-size:.85rem;color:var(--grey-500)}

/* ===== Contact ===== */
.contact-info-card{
  background:var(--navy);
  border-radius:var(--radius-lg);
  padding:36px 30px;
  color:#fff;
  margin-bottom:24px;
}
.contact-info-item{display:flex;gap:18px;margin-bottom:26px}
.contact-info-item:last-child{margin-bottom:0}
.contact-info-item i{font-size:1.3rem;color:var(--gold-light);margin-top:4px}
.contact-info-item h5{color:#fff;font-size:1rem;margin-bottom:4px}
.contact-info-item p{color:#cbd5e1;margin:0;font-size:.92rem}
.contact-info-item a{color:#cbd5e1;text-decoration:none}
.contact-info-item a:hover{color:var(--gold-light)}
.map-embed{border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}

.contact-form{
  background:#fff;
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:var(--shadow-md);
  border:1px solid var(--grey-200);
}
.contact-form .form-label{font-weight:600;font-size:.9rem;color:var(--navy)}
.contact-form .form-control,.contact-form .form-select{
  border-radius:var(--radius-sm);
  border:1px solid var(--grey-200);
  padding:12px 14px;
}
.contact-form .form-control:focus,.contact-form .form-select:focus{
  border-color:var(--gold);box-shadow:0 0 0 .2rem rgba(201,154,60,.15);
}
.form-success{
  display:none;
  margin-top:20px;
  background:#ecfdf5;
  border:1px solid #a7f3d0;
  color:#047857;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  font-weight:500;
}
.form-success.show{display:block}

/* ===== Footer ===== */
.site-footer{background:var(--navy-dark);color:#cbd5e1;padding:70px 0 0}
.footer-brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-bottom:16px}
.footer-about{font-size:.92rem;color:#94a3b8;margin-bottom:20px;max-width:320px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.06);
  color:#fff;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.1);
}
.footer-social a:hover{background:var(--gold);color:var(--navy-dark)}
.footer-heading{color:#fff;font-size:1.05rem;margin-bottom:20px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:12px;font-size:.9rem;color:#94a3b8}
.footer-links a{color:#94a3b8;text-decoration:none}
.footer-links a:hover{color:var(--gold-light)}
.site-footer hr{border-color:rgba(255,255,255,.1);margin-top:20px}
.footer-bottom{padding:22px 0;text-align:center;font-size:.85rem;color:#94a3b8}

/* ===== Floating Buttons ===== */
.whatsapp-float{
  position:fixed;right:24px;bottom:24px;z-index:900;
  width:60px;height:60px;border-radius:50%;
  background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:1.8rem;box-shadow:0 10px 26px rgba(37,211,102,.4);
  animation:pulse 2.4s infinite;
}
.whatsapp-float:hover{color:#fff;transform:scale(1.08)}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}
  70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}
  100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}
}
.back-to-top{
  position:fixed;right:24px;bottom:96px;z-index:900;
  width:46px;height:46px;border-radius:50%;
  background:var(--navy);color:#fff;border:none;
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;box-shadow:var(--shadow-md);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:var(--transition);
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--gold);color:var(--navy-dark)}

/* ===== Responsive ===== */
@media(max-width:991px){
  .hero-title{font-size:3rem}
  .hero-subtitle{font-size:1.2rem}
  .section{padding:70px 0}
  .navbar-collapse{background:var(--navy-dark);margin-top:14px;padding:16px;border-radius:12px}
}
@media(max-width:767px){
  .hero{min-height:100vh}
  .hero-title{font-size:2.4rem}
  .hero-objective{font-size:1rem}
  .section-title{font-size:1.9rem}
  .founder-frame{display:none}
  .whatsapp-float{width:52px;height:52px;font-size:1.5rem;right:16px;bottom:16px}
  .back-to-top{right:16px;bottom:80px;width:42px;height:42px}
}