/* ===== Reset & Variables ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --c-deep:#0A1F44;
  --c-deep-2:#132B5C;
  --c-blue-deep:#003366;
  --c-accent:#FF6B00;
  --c-accent-dark:#E05A00;
  --c-data:#39FF14;
  --c-data-dark:#2ECC71;
  --c-text:#E5E9F0;
  --c-white:#FFFFFF;
  --font-title:'Archivo Black','Noto Sans SC',sans-serif;
  --font-body:'Inter','Noto Sans SC',sans-serif;
  --font-mono:'Roboto Mono','SFMono-Regular',Consolas,monospace;
  --container:1240px;
  --header-bar-h:80px;
  --quick-strip-h:36px;
  --header-h:calc(var(--header-bar-h) + var(--quick-strip-h));
  --radius:4px;
  --border-soft:1px solid rgba(255,255,255,0.08);
}
html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
  background:var(--c-deep);
}
body{
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.6;
  color:var(--c-text);
  background:
    linear-gradient(135deg,var(--c-deep) 0%,var(--c-blue-deep) 120%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
#main-content{
  padding-top:var(--header-h);
  min-height:70vh;
}

/* ===== Focus & Accessibility ===== */
:focus-visible{
  outline:2px solid var(--c-data);
  outline-offset:3px;
  border-radius:2px;
}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}
.skip-link{
  position:fixed;
  top:-100%;
  left:1rem;
  z-index:3000;
  background:var(--c-accent);
  color:var(--c-deep);
  font-weight:700;
  font-size:0.9rem;
  padding:0.7rem 1.4rem;
  border-radius:0 0 8px 8px;
  box-shadow:0 4px 16px rgba(10,31,68,0.5);
  transition:top 0.2s ease;
}
.skip-link:focus{
  top:0;
}

/* ===== Typography ===== */
h1,h2,h3,h4{
  font-family:var(--font-title);
  color:var(--c-white);
  line-height:1.2;
  font-weight:700;
}
h1{font-size:clamp(2.4rem,5vw,3.5rem)}
h2{font-size:clamp(2rem,4vw,2.5rem)}
h3{font-size:1.4rem}
h4{font-size:1rem}
p{max-width:70ch}

/* ===== Utilities ===== */
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 2rem;
}
.section{
  padding:6rem 0;
}
.section--tight{
  padding:3rem 0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:0.5rem;
  padding:0.9rem 2rem;
  font-family:var(--font-title);
  font-size:0.9rem;
  font-weight:600;
  letter-spacing:0.08em;
  border-radius:4px;
  transition:transform 0.2s ease,background 0.2s ease,border-color 0.2s ease,box-shadow 0.2s ease;
}
.btn--accent{
  background:var(--c-accent);
  color:var(--c-deep);
  box-shadow:0 4px 14px rgba(255,107,0,0.3);
}
.btn--accent:hover{
  background:var(--c-accent-dark);
  transform:translateY(-2px);
  box-shadow:0 6px 22px rgba(255,107,0,0.45);
}
.btn--ghost{
  border:2px solid rgba(255,255,255,0.25);
  color:var(--c-white);
}
.btn--ghost:hover{
  border-color:var(--c-data);
  color:var(--c-data);
  transform:translateY(-2px);
}

/* ===== Breadcrumb ===== */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0.5rem;
  font-size:0.85rem;
  color:rgba(229,233,240,0.55);
  padding:1rem 0 0;
}
.breadcrumb a{
  color:var(--c-text);
  transition:color 0.2s ease;
}
.breadcrumb a:hover{
  color:var(--c-accent);
}
.crumb-sep{
  opacity:0.4;
}

/* ===== Page Title ===== */
.page-title{
  font-family:var(--font-title);
  font-size:clamp(2rem,5vw,2.8rem);
  color:var(--c-white);
  line-height:1.15;
  position:relative;
  padding-bottom:1rem;
  margin-bottom:0.5rem;
}
.page-title::before{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:4.5rem;
  height:4px;
  background:var(--c-accent);
  transform:skew(-20deg);
}

/* ===== Grid & Media ===== */
.grid{
  display:grid;
  gap:1.5rem;
}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.media-box{
  position:relative;
  overflow:hidden;
  background:linear-gradient(145deg,var(--c-deep-2),var(--c-blue-deep));
  aspect-ratio:16 / 9;
  border-radius:6px;
  border:var(--border-soft);
}
.media-box img{
  width:100%;
  height:100%;
  object-fit:cover;
}

/* ===== Data Display ===== */
.data-label{
  font-family:var(--font-mono);
  font-size:0.85rem;
  letter-spacing:0.12em;
  color:var(--c-data);
  text-transform:uppercase;
}
.data-value{
  font-family:var(--font-mono);
  font-size:1.5rem;
  color:var(--c-white);
  font-weight:500;
  line-height:1.1;
}

/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  height:var(--header-h);
  display:flex;
  flex-direction:column;
  background:rgba(10,31,68,0.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:background 0.3s ease,box-shadow 0.3s ease;
}
.site-header.is-scrolled{
  background:rgba(10,31,68,0.97);
  box-shadow:0 8px 32px rgba(0,0,0,0.35);
}
.site-header::after{
  content:'';
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:4px;
  background:linear-gradient(100deg,var(--c-accent) 0%,var(--c-accent) 12%,transparent 12%);
  opacity:0.85;
  pointer-events:none;
}
.scroll-progress{
  position:absolute;
  top:0;
  left:0;
  height:3px;
  width:0%;
  background:var(--c-data);
  box-shadow:0 0 10px rgba(57,255,20,0.8);
  z-index:10;
  transition:width 0.08s linear;
}
.header-inner{
  max-width:var(--container);
  width:100%;
  margin:0 auto;
  height:var(--header-bar-h);
  flex-shrink:0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.5rem;
  padding:0 2rem;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:0.85rem;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  background:var(--c-accent);
  color:var(--c-deep);
  font-family:var(--font-title);
  font-size:1.2rem;
  font-weight:700;
  letter-spacing:-0.02em;
  border-radius:4px;
  transform:skew(-8deg);
  box-shadow:4px 4px 0 var(--c-data);
}
.brand-text{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:2px;
}
.brand-name{
  font-family:var(--font-title);
  font-size:1.35rem;
  font-weight:700;
  color:var(--c-white);
  line-height:1;
  letter-spacing:0.02em;
}
.brand-tag{
  font-family:var(--font-mono);
  font-size:0.62rem;
  letter-spacing:0.32em;
  color:var(--c-accent);
  text-transform:uppercase;
}

/* ===== Navigation ===== */
.site-nav{
  flex-shrink:0;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:0.2rem;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:0.65rem 1rem;
  font-size:0.95rem;
  font-weight:500;
  color:var(--c-text);
  letter-spacing:0.03em;
  white-space:nowrap;
  transition:color 0.25s ease;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:1rem;
  right:1rem;
  bottom:0.15rem;
  height:2px;
  background:var(--c-data);
  transform:scaleX(0);
  transform-origin:right center;
  transition:transform 0.3s ease;
}
.nav-link:hover{
  color:var(--c-white);
}
.nav-link:hover::after,
.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
  transform-origin:left center;
}
.nav-link[aria-current="page"]{
  color:var(--c-white);
  font-weight:700;
}

/* ===== Nav Toggle (mobile) ===== */
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:6px;
  width:44px;
  height:44px;
  padding:10px;
  background:transparent;
  border:1px solid rgba(255,255,255,0.16);
  border-radius:6px;
  transition:border-color 0.2s ease;
}
.nav-toggle:hover{
  border-color:var(--c-accent);
}
.toggle-line{
  display:block;
  height:2px;
  width:100%;
  background:var(--c-white);
  border-radius:2px;
  transition:transform 0.3s ease,opacity 0.3s ease;
}
.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(1){
  transform:translateY(8px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(2){
  opacity:0;
}
.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(3){
  transform:translateY(-8px) rotate(-45deg);
}

/* ===== Quick Strip ===== */
.quick-strip{
  height:var(--quick-strip-h);
  flex-shrink:0;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  background:rgba(10,31,68,0.72);
  border-top:1px solid rgba(255,255,255,0.05);
  transition:height 0.3s ease,opacity 0.3s ease;
}
.quick-strip::-webkit-scrollbar{
  display:none;
}
.site-header.is-scrolled .quick-strip{
  height:0;
  opacity:0;
  overflow:hidden;
  border-top-color:transparent;
}
.quick-list{
  display:flex;
  align-items:center;
  gap:0.3rem;
  height:100%;
  padding:0 1.5rem;
  white-space:nowrap;
}
.quick-label{
  font-family:var(--font-mono);
  font-size:0.62rem;
  letter-spacing:0.22em;
  color:var(--c-data);
  text-transform:uppercase;
  margin-right:0.6rem;
}
.quick-list a{
  display:inline-block;
  padding:0.18rem 0.9rem;
  font-size:0.78rem;
  border-radius:20px;
  border:1px solid rgba(255,255,255,0.14);
  color:rgba(229,233,240,0.85);
  transition:background 0.2s ease,border-color 0.2s ease,color 0.2s ease;
}
.quick-list a:hover{
  border-color:var(--c-accent);
  background:var(--c-accent);
  color:var(--c-deep);
}

/* ===== Side Rail ===== */
.side-rail{
  position:fixed;
  left:0;
  top:50%;
  transform:translateY(-50%);
  z-index:1001;
  display:flex;
  align-items:stretch;
}
.rail-trigger{
  width:46px;
  height:160px;
  background:var(--c-deep-2);
  border:1px solid rgba(255,255,255,0.08);
  border-left:none;
  border-radius:0 8px 8px 0;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:background 0.3s ease;
}
.rail-label{
  font-family:var(--font-title);
  font-size:0.8rem;
  letter-spacing:0.24em;
  color:var(--c-text);
  writing-mode:vertical-rl;
  text-orientation:mixed;
  text-transform:uppercase;
  transition:color 0.3s ease;
}
.rail-trigger:hover{
  background:var(--c-accent);
}
.rail-trigger:hover .rail-label{
  color:var(--c-deep);
}
.rail-panel{
  width:0;
  overflow:hidden;
  background:rgba(19,43,92,0.96);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-right:3px solid var(--c-accent);
  transition:width 0.35s cubic-bezier(0.65,0,0.35,1);
}
.side-rail[data-open="true"] .rail-panel{
  width:260px;
}
.rail-panel-inner{
  padding:1.5rem 1.25rem;
  width:260px;
  opacity:0;
  transform:translateX(-8px);
  transition:opacity 0.3s ease,transform 0.3s ease;
}
.side-rail[data-open="true"] .rail-panel-inner{
  opacity:1;
  transform:translateX(0);
  transition-delay:0.08s;
}
.rail-title{
  font-family:var(--font-title);
  font-size:1.05rem;
  color:var(--c-white);
  border-left:3px solid var(--c-data);
  padding-left:0.75rem;
  margin-bottom:1rem;
}
.rail-list li{
  margin-bottom:0.5rem;
}
.rail-list a{
  display:flex;
  align-items:center;
  gap:0.5rem;
  padding:0.5rem 0.75rem;
  background:rgba(255,255,255,0.04);
  border-radius:4px;
  font-size:0.9rem;
  color:var(--c-text);
  transition:background 0.2s ease,color 0.2s ease;
}
.rail-list a::before{
  content:'◤';
  color:var(--c-accent);
  font-size:0.65rem;
  flex-shrink:0;
}
.rail-list a:hover{
  background:var(--c-accent);
  color:var(--c-deep);
}

/* ===== Footer ===== */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,var(--c-deep) 0%,var(--c-blue-deep) 130%);
  border-top:1px solid rgba(255,255,255,0.06);
}
.site-footer::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--c-accent) 0%,var(--c-accent) 18%,transparent 18%);
  opacity:0.9;
}
.footer-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:4rem 2rem 2.5rem;
  display:grid;
  grid-template-columns:1.3fr 1fr 1.2fr;
  gap:3rem;
}
.footer-brand .brand{
  margin-bottom:1rem;
}
.footer-desc{
  font-size:0.9rem;
  line-height:1.6;
  color:rgba(229,233,240,0.7);
  margin-bottom:1rem;
  max-width:36ch;
}
.footer-trust{
  font-size:0.78rem;
  line-height:1.5;
  color:rgba(229,233,240,0.5);
  border-left:2px solid var(--c-data);
  padding-left:0.85rem;
  max-width:44ch;
}
.footer-title{
  font-size:1rem;
  letter-spacing:0.08em;
  color:var(--c-white);
  margin-bottom:1.25rem;
  position:relative;
  padding-bottom:0.5rem;
}
.footer-title::after{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:28px;
  height:2px;
  background:var(--c-accent);
}
.footer-link-list li{
  margin-bottom:0.55rem;
}
.footer-link-list a{
  font-size:0.9rem;
  color:rgba(229,233,240,0.72);
  transition:color 0.2s ease,padding-left 0.2s ease;
}
.footer-link-list a:hover{
  color:var(--c-data);
  padding-left:4px;
}
.contact-line{
  font-size:0.9rem;
  color:rgba(229,233,240,0.78);
  margin-bottom:0.5rem;
}
.footer-note{
  font-size:0.78rem;
  line-height:1.5;
  color:rgba(229,233,240,0.45);
  border-top:1px solid rgba(255,255,255,0.08);
  padding-top:0.75rem;
  margin-top:0.75rem;
  max-width:40ch;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);
  padding:1.2rem 2rem;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:0.5rem 1.5rem;
}
.footer-bottom p{
  font-size:0.8rem;
  color:rgba(229,233,240,0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px){
  :root{
    --header-bar-h:72px;
    --quick-strip-h:34px;
  }
  .nav-link{
    padding:0.6rem 0.8rem;
    font-size:0.9rem;
  }
}
@media (max-width: 900px){
  :root{
    --header-bar-h:64px;
    --quick-strip-h:0px;
  }
  .quick-strip{
    display:none;
  }
  .brand-tag{
    display:none;
  }
  .nav-toggle{
    display:flex;
  }
  .site-nav{
    position:absolute;
    top:var(--header-bar-h);
    left:0;
    right:0;
    background:rgba(10,31,68,0.98);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:2px solid var(--c-accent);
    padding:1rem 2rem 1.5rem;
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity 0.3s ease,transform 0.3s ease,visibility 0.3s ease;
  }
  .site-nav[data-open="true"]{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
    pointer-events:auto;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0.15rem;
  }
  .nav-link{
    display:block;
    padding:0.85rem 0;
    font-size:1.05rem;
  }
  .nav-link::after{
    left:0;
    right:0;
    bottom:0.2rem;
  }
  .side-rail{
    display:none;
  }
  .footer-inner{
    grid-template-columns:1fr;
    gap:2.2rem;
    padding:3rem 1.25rem 2rem;
  }
  .footer-bottom{
    padding:1rem 1.25rem;
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (max-width: 600px){
  :root{
    --header-bar-h:60px;
  }
  .header-inner{
    padding:0 1.25rem;
    gap:0.75rem;
  }
  .brand-mark{
    width:38px;
    height:38px;
    font-size:1rem;
    box-shadow:3px 3px 0 var(--c-data);
  }
  .brand-name{
    font-size:1.15rem;
  }
  .container{
    padding:0 1.25rem;
  }
  .section{
    padding:4rem 0;
  }
  .section--tight{
    padding:2rem 0;
  }
  .grid--2,.grid--3{
    grid-template-columns:1fr;
  }
  .grid{
    gap:1rem;
  }
  .footer-inner{
    padding:2.5rem 1.25rem 1.5rem;
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce){
  html{
    scroll-behavior:auto;
  }
  *,
  *::before,
  *::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
    transition-delay:0ms !important;
    scroll-behavior:auto !important;
  }
  .scroll-progress{
    transition:none;
  }
  .site-header .quick-strip{
    height:var(--quick-strip-h);
    opacity:1;
  }
}
@media print{
  .site-header,
  .side-rail,
  .quick-strip{
    display:none !important;
  }
  #main-content{
    padding-top:0;
  }
  body{
    background:#fff;
    color:#000;
  }
}