/* ==========================================================================
   GOLDEN SHIELD TECHNOLOGIES — STYLESHEET
   Sections: 1. Tokens  2. Base/Reset  3. Layout utils  4. Header
   5. Hero  6. Stats  7. About  8. Solutions  9. Feature strip
   10. Marquees (partners/clients)  11. Footer  12. Buttons/eyebrows
   13. Responsive
   ========================================================================== */

/* -------------------------- 1. Design tokens --------------------------- */
:root{
  --navy-950:#0A1628;
  --navy-900:#0E1E33;
  --navy-800:#152742;
  --navy-700:#1E3352;
  --paper:#F7F8FA;
  --paper-alt:#EFF2F6;
  --white:#FFFFFF;
  --ink:#101826;
  --ink-soft:#4A5568;
  --amber-500:#F0A500;
  --amber-400:#F5B301;
  --amber-050:#FFF4DC;

  --font-display:'Manrope', 'Inter', sans-serif;
  --font-body:'Inter', 'Manrope', sans-serif;

  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:20px;

  --shadow-1:0 8px 24px rgba(10,22,40,0.10);
  --shadow-2:0 16px 40px rgba(10,22,40,0.16);

  --ease:cubic-bezier(.4,0,.2,1);
  --space-section:96px;
}

@media (max-width:900px){
  :root{ --space-section:56px; }
}

/* -------------------------- 2. Base / reset ----------------------------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--navy-950);
  line-height:1.2;
  margin:0 0 .5em;
}
h2{ font-size:clamp(1.7rem, 2.4vw + 1rem, 2.5rem); font-weight:800; }
h3{ font-size:1.05rem; font-weight:700; }
p{ margin:0 0 1em; color:var(--ink-soft); }

:focus-visible{
  outline:3px solid var(--amber-500);
  outline-offset:2px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

/* -------------------------- 3. Layout utils ----------------------------- */
.container{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-inline:24px;
}
.section-head{
  text-align:center;
  max-width:640px;
  margin:0 auto 48px;
}
.eyebrow{
  display:inline-block;
  font-family:var(--font-display);
  font-size:0.78rem;
  font-weight:700;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--amber-500);
  margin-bottom:12px;
  position:relative;
  padding-bottom:8px;
}
.eyebrow::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:32px; height:2px;
  background:var(--amber-500);
}
.section-head .eyebrow::after{ left:50%; transform:translateX(-50%); }
.eyebrow-light{ color:var(--amber-400); }

/* -------------------------- 12. Buttons --------------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  min-height:44px;
  border-radius:var(--radius-sm);
  font-family:var(--font-display);
  font-weight:700;
  font-size:0.92rem;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.btn:hover{ transform:translateY(-2px); }
.btn-amber{ background:var(--amber-500); color:var(--navy-950); }
.btn-amber:hover{ background:var(--amber-400); box-shadow:var(--shadow-1); }
.btn-outline-light{ border-color:rgba(255,255,255,0.5); color:var(--white); }
.btn-outline-light:hover{ border-color:var(--white); background:rgba(255,255,255,0.08); }
.btn-dark{ background:var(--navy-950); color:var(--white); }
.btn-dark:hover{ background:var(--navy-800); }
.btn-sm{ padding:10px 18px; font-size:0.85rem; min-height:40px; }

/* -------------------------- 4. Header ------------------------------------ */
.site-header{
  position:sticky; top:0; z-index:100;
  background:var(--white);
  border-bottom:1px solid #E4E8EE;
  box-shadow:0 1px 4px rgba(10,22,40,0.06);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.logo{ display:flex; align-items:center; gap:10px; }
.logo-word{
  font-family:var(--font-display); font-weight:800; font-size:1.15rem; color:var(--navy-950);
}
.logo-word span{ color:var(--amber-500); }

.main-nav ul{ display:flex; gap:30px; }
.main-nav a{
  color:var(--ink-soft);
  font-size:0.92rem; font-weight:600;
  padding:8px 2px;
  position:relative;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background:var(--amber-500); transform:scaleX(0); transform-origin:left;
  transition:transform .2s var(--ease);
}
.main-nav a:hover{ color:var(--navy-950); }
.main-nav a:hover::after{ transform:scaleX(1); }

.header-actions{ display:flex; align-items:center; gap:18px; }

.nav-toggle{
  display:none;
  flex-direction:column; justify-content:center; gap:5px;
  width:44px; height:44px;
  background:transparent; border:none; cursor:pointer;
}
.nav-toggle span{
  width:22px; height:2px; background:var(--navy-950); margin-inline:auto;
  transition:transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* -------------------------- 5. Hero -------------------------------------- */
.hero{
  position:relative;
  min-height:640px;
  display:flex; align-items:center;
  overflow:hidden;
  padding-block:80px;
}
.hero-video{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  z-index:0;
}
.hero-bg{
  position:absolute; inset:0;
  background:
    radial-gradient(circle at 78% 30%, rgba(240,165,0,0.14), transparent 45%),
    linear-gradient(120deg, rgba(10,22,40,0.65) 0%, rgba(14,30,51,0.45) 55%, rgba(21,39,66,0.3) 100%);
  z-index:1;
}
.hero-bg::after{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(to right, black, transparent 70%);
}
.hero-scrim{
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(10,22,40,0.1) 0%, rgba(10,22,40,0.6) 100%);
  z-index:2;
}
.hero-inner{ position:relative; z-index:3; max-width:680px; }
.hero-title{
  color:var(--white);
  font-size:clamp(2.1rem, 4vw + 1rem, 3.4rem);
  font-weight:800;
  margin-bottom:20px;
}
.accent-text{ color:var(--amber-500); }
.hero-sub{
  color:rgba(255,255,255,0.78);
  font-size:1.05rem;
  max-width:520px;
  margin-bottom:32px;
}
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

/* -------------------------- 6. Stats -------------------------------------- */
.stats{ background:var(--navy-900); padding-block:36px; }
.stats-grid{
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  gap:24px;
}
.stat{
  display:flex; flex-direction:column; align-items:center; text-align:center;
  color:var(--white);
  padding-inline:12px;
}
.stat-icon{ width:26px; height:26px; color:var(--amber-500); margin-bottom:10px; }
.stat-num{ font-family:var(--font-display); font-weight:800; font-size:1.5rem; }
.stat-label{ font-size:0.78rem; color:rgba(255,255,255,0.65); margin-top:2px; }

/* -------------------------- 7. About -------------------------------------- */
.about{ padding-block:var(--space-section); background:var(--white); }
.about-grid{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:64px;
  align-items:center;
}
.about-img{
  aspect-ratio:4/3.4;
  border-radius:var(--radius-lg);
  background:var(--navy-900) url('images/logo-1-1-768x241.webp') center/60% no-repeat;
  box-shadow:var(--shadow-2);
  position:relative;
  overflow:hidden;
}
.about-img::after{
  content:"";
  position:absolute; inset:0;
  background-image:linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size:36px 36px;
}
.about-copy h2{ margin-bottom:18px; }

/* -------------------------- 8. Solutions (accordion tabs) -------------- */
.solutions{ padding-block:var(--space-section); background:var(--paper); }

/* --- Tab row --- */
.solution-tabs{
  display:flex;
  gap:0;
}
.solution-tab{
  flex:1 1 0;
  min-width:0;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  padding:18px 10px 16px;
  background:var(--paper);
  border:1px solid #E4E8EE;
  border-radius:var(--radius-sm) var(--radius-sm) 0 0;
  margin-right:-1px;
  cursor:pointer;
  font-family:var(--font-display);
  color:var(--ink-soft);
  position:relative;
  transition:color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.solution-tab:last-child{ margin-right:0; }
.solution-tab::after{
  content:""; position:absolute; bottom:0; left:-1px; right:-1px; height:3px;
  background:var(--amber-500); transform:scaleX(0);
  transition:transform .25s var(--ease);
}
.solution-tab:hover{ color:var(--navy-950); background:#E8EDF2; border-color:#CDD4DE; }
.solution-tab.active{
  color:var(--navy-950);
  background:var(--white);
  border-bottom-color:var(--white);
  z-index:2;
}
.solution-tab.active::after{ transform:scaleX(1); }
.tab-icon{
  display:flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:50%;
  background:var(--paper); color:var(--ink-soft);
  border:1px solid #E4E8EE;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.tab-icon svg{ width:22px; height:22px; }
.solution-tab.active .tab-icon{ background:var(--amber-500); color:var(--white); border-color:var(--amber-500); }
.solution-tab:hover .tab-icon{ background:#E8DFD0; border-color:#CDD4DE; }
.tab-label{ font-size:0.8rem; font-weight:700; text-align:center; line-height:1.25; }

/* --- Detail panel --- */
.solution-detail{
  background:var(--white);
  border:1px solid #E4E8EE;
  border-top:none;
  border-radius:0 0 var(--radius-md) var(--radius-md);
  overflow:hidden;
  max-height:0;
  opacity:0;
  transition:max-height .45s var(--ease), opacity .35s var(--ease), padding .35s var(--ease);
}
.solution-detail.expanded{
  max-height:900px;
  opacity:1;
  padding:32px;
}
.sd-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
  align-items:start;
}
.sd-title{ font-size:1.35rem; margin-bottom:10px; color:var(--navy-950); }
.sd-desc{ color:var(--ink-soft); line-height:1.7; margin-bottom:20px; }
.sd-features h4{
  font-family:var(--font-display); font-size:0.82rem; text-transform:uppercase;
  letter-spacing:0.08em; color:var(--amber-500); margin:18px 0 8px;
}
.sd-features h4:first-child{ margin-top:0; }
.sd-features ul{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:6px 24px;
}
.sd-features li{
  font-size:0.9rem; color:var(--ink-soft); padding-left:16px; position:relative;
}
.sd-features li::before{
  content:""; position:absolute; left:0; top:10px;
  width:6px; height:6px; border-radius:50%; background:var(--amber-500);
}
.sd-image{ border-radius:var(--radius-md); overflow:hidden; box-shadow:var(--shadow-1); }
.sd-image img{ width:100%; height:100%; object-fit:cover; aspect-ratio:4/3; }

/* -------------------------- 9b. Why Us + Process ------------------------ */
.section-pad{ padding:var(--space-section) 0; }
.bg-paper{ background:var(--paper); }

.eyebrow-left::after{
  content:""; position:absolute; left:0; bottom:0;
  width:40px; height:2px; background:var(--amber-500);
}

.why-process-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
}

/* Check list */
.check-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:32px;
}
.check-item{
  display:flex; align-items:center; gap:10px;
  background:var(--white); padding:16px;
  border-radius:var(--radius-sm);
  box-shadow:0 2px 8px rgba(0,0,0,0.04);
  font-family:var(--font-body); font-weight:600; font-size:0.9rem;
  color:var(--navy-950);
  border-left:4px solid var(--amber-500);
}

/* Timeline */
.timeline{
  position:relative; padding-left:32px; margin-top:32px;
}
.timeline::before{
  content:""; position:absolute; left:6px; top:0; bottom:0;
  width:2px; background:#E4E8EE;
}
.tl-item{
  position:relative; margin-bottom:32px;
}
.tl-item:last-child{ margin-bottom:0; }
.tl-item::before{
  content:""; position:absolute; left:-32px; top:4px;
  width:14px; height:14px; border-radius:50%;
  background:var(--white); border:3px solid var(--amber-500);
}
.tl-item h4{ margin-bottom:4px; }
.tl-item p{ color:var(--ink-soft); margin-bottom:0; }

/* Scroll reveal */
.reveal{
  opacity:0; transform:translateY(40px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
  will-change:opacity, transform;
}
.reveal.active{ opacity:1; transform:translateY(0); }
.delay-1{ transition-delay:.2s; }

/* -------------------------- 10. Marquees (partners / clients) ------------- */
.partners{ padding-block:var(--space-section) 64px; background:var(--white); }
.clients{ padding-block:64px var(--space-section); background:var(--white); }

.marquee{
  width:100%;
  overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  mask-image:linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.marquee-track{
  display:flex;
  align-items:center;
  gap:64px;
  width:max-content;
  will-change:transform;
}
.marquee-track img{
  width:100px;
  height:auto;
  object-fit:contain;
  filter:grayscale(1) opacity(0.55);
  transition:filter .2s var(--ease);
}
.marquee-track img:hover{ filter:grayscale(0) opacity(1); }

.marquee-left .marquee-track{ animation:scroll-left 50s linear infinite; }
.marquee-right .marquee-track{ animation:scroll-right 55s linear infinite; }
.marquee:hover .marquee-track{ animation-play-state:paused; }

@keyframes scroll-left{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}
@keyframes scroll-right{
  from{ transform:translateX(-50%); }
  to{ transform:translateX(0); }
}

/* -------------------------- 9b. Contact Section --------------------------- */
.contact-section{ padding-block:var(--space-section); background:var(--white); }
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.contact-subtitle{ color:var(--ink-soft); margin-bottom:28px; max-width:440px; }
.contact-card-list{
  display:flex; flex-direction:column; gap:20px;
}
.contact-card-list li{
  display:flex; align-items:flex-start; gap:16px;
  padding:20px; border-radius:var(--radius-sm);
  background:var(--paper); border:1px solid #E4E8EE;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.contact-card-list li:hover{ border-color:var(--amber-500); box-shadow:var(--shadow-1); }
.cc-icon{
  flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:50%;
  background:var(--amber-500); color:var(--navy-950);
}
.cc-icon svg{ width:22px; height:22px; }
.contact-card-list div{ display:flex; flex-direction:column; gap:2px; }
.contact-card-list strong{ font-family:var(--font-display); font-size:0.85rem; color:var(--navy-950); }
.contact-card-list span{ font-size:0.9rem; color:var(--ink-soft); }
.contact-map{ border-radius:var(--radius-md); overflow:hidden; box-shadow:var(--shadow-2); height:100%; min-height:340px; }
.contact-map iframe{ width:100%; height:100%; border:none; }

/* -------------------------- 11. Footer ------------------------------------ */
.site-footer{ background:var(--navy-950); color:rgba(255,255,255,0.7); padding-top:72px; }
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-col h4{
  color:var(--white); font-size:0.95rem; text-transform:uppercase; letter-spacing:0.06em;
  margin-bottom:18px;
}
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:0.9rem; color:rgba(255,255,255,0.65); transition:color .2s; }
.footer-col a:hover{ color:var(--amber-500); }
.footer-brand p{ color:rgba(255,255,255,0.6); font-size:0.9rem; margin:16px 0 20px; max-width:280px; }
.logo-footer{ margin-bottom:4px; }

.social-row{ display:flex; gap:10px; }
.social-row a{
  display:flex; align-items:center; justify-content:center;
  width:38px; height:38px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,0.18);
  font-size:0.8rem; font-weight:700;
  color:var(--white);
}
.social-row a:hover{ background:var(--amber-500); color:var(--navy-950); border-color:var(--amber-500); }

.footer-bottom{ padding-block:20px; }
.footer-bottom-inner{
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:0.82rem;
}
.footer-bottom-links{ display:flex; gap:20px; }
.footer-bottom-links a:hover{ color:var(--amber-500); }

/* -------------------------- WhatsApp FAB ----------------------------------- */
.whatsapp-fab{
  position:fixed; right:22px; bottom:22px; z-index:90;
  width:56px; height:56px;
  border-radius:50%;
  background:#25D366;
  color:var(--white);
  display:flex; align-items:center; justify-content:center;
  box-shadow:var(--shadow-2);
  transition:transform .2s var(--ease);
}
.whatsapp-fab svg{ width:26px; height:26px; }
.whatsapp-fab:hover{ transform:translateY(-3px) scale(1.05); }

/* -------------------------- 13. Responsive --------------------------------- */
@media (max-width:1080px){
  .stats-grid{ grid-template-columns:repeat(3,1fr); row-gap:28px; }
  .solution-detail.expanded{ padding:24px; }
  .contact-grid{ grid-template-columns:1fr; gap:32px; }
  .contact-map{ min-height:280px; }
  .why-process-grid{ grid-template-columns:1fr; gap:40px; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:860px){
  .solution-tabs{
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .solution-tabs::-webkit-scrollbar{ display:none; }
  .solution-tab{
    flex:0 0 auto;
    min-width:100px;
    padding:14px 12px 12px;
    border-radius:var(--radius-sm) var(--radius-sm) 0 0;
  }
  .tab-label{ font-size:0.72rem; white-space:nowrap; }
}

@media (max-width:900px){
  .nav-toggle{ display:flex; }
  .main-nav{
    position:absolute; top:76px; left:0; right:0;
    background:var(--navy-950);
    border-top:1px solid rgba(255,255,255,0.08);
    max-height:0; overflow:hidden;
    transition:max-height .3s var(--ease);
  }
  .main-nav.open{ max-height:420px; }
  .main-nav ul{ flex-direction:column; gap:0; padding:8px 24px 20px; }
  .main-nav a{
    display:block; padding:14px 0; border-bottom:1px solid rgba(255,255,255,0.06);
    color:rgba(255,255,255,0.82);
  }
  .main-nav a:hover{ color:var(--white); }
  .header-actions .btn-sm{ display:none; }

  .about-grid{ grid-template-columns:1fr; gap:36px; }
  .about-media{ order:-1; }
}

@media (max-width:720px){
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .solution-detail.expanded{
    max-height:1400px;
    padding:18px;
  }
  .sd-features ul{ grid-template-columns:1fr; }
  .check-list{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .hero{ min-height:auto; padding-block:64px; }
}

@media (max-width:480px){
  .stats-grid{ grid-template-columns:1fr 1fr; }
  .solution-tab{
    min-width:88px;
    padding:12px 8px 10px;
    gap:4px;
  }
  .tab-icon{ width:34px; height:34px; }
  .tab-icon svg{ width:18px; height:18px; }
  .tab-label{ font-size:0.68rem; }
  .solution-detail.expanded{ padding:14px; }
  .hero-actions{ flex-direction:column; align-items:flex-start; }
  .btn{ width:100%; }
}