/* === Reset & Variables === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --color-primary:#0B1D3A;
  --color-accent:#FF6B35;
  --color-background:#FFFFFF;
  --color-surface:#F4F6F9;
  --color-text-primary:#1A1A1A;
  --color-text-secondary:#5A5A5A;
  --color-border:#D1D5DB;
  --color-success:#27AE60;
  --color-warning:#E67E22;
  --font-heading: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body: Georgia, 'Times New Roman', serif;
  --font-size-h1:48px;
  --font-size-h2:32px;
  --font-size-h3:24px;
  --font-size-body:16px;
  --font-size-small:14px;
  --line-height-heading:1.4;
  --line-height-body:1.6;
  --container-max:1200px;
  --header-height:70px;
  --transition-fast:0.2s ease;
}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);font-size:var(--font-size-body);line-height:var(--line-height-body);color:var(--color-text-primary);background:var(--color-background);}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
/* === Accessibility === */
.skip-link{position:absolute;top:-100px;left:0;background:var(--color-accent);color:#fff;padding:8px 16px;z-index:1000;transition:top var(--transition-fast)}
.skip-link:focus{top:0}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
/* === Container === */
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}
@media(min-width:768px){.container{padding:0 32px}}
/* === Header === */
.site-header{background:var(--color-primary);color:#fff;position:fixed;top:0;left:0;width:100%;z-index:100;height:var(--header-height)}
.header-inner{display:flex;align-items:center;height:100%;gap:24px}
.brand{display:flex;align-items:center;gap:12px}
.logo-text{font-family:var(--font-heading);font-size:24px;font-weight:700;letter-spacing:0.5px;color:#fff}
.tagline{font-size:var(--font-size-small);color:rgba(255,255,255,0.7);display:none}
@media(min-width:768px){.tagline{display:inline}}
.nav-toggle{display:none;background:transparent;border:none;color:#fff;cursor:pointer;padding:8px;margin-left:auto}
.nav-icon,.nav-icon::before,.nav-icon::after{display:block;width:24px;height:2px;background:#fff;transition:var(--transition-fast)}
.nav-icon{position:relative}
.nav-icon::before,.nav-icon::after{content:'';position:absolute;left:0}
.nav-icon::before{top:-6px}
.nav-icon::after{top:6px}
.nav-container{display:flex;align-items:center}
.nav-list{display:flex;gap:8px;margin-left:auto}
.nav-list a{display:block;padding:8px 14px;font-family:var(--font-heading);font-size:15px;font-weight:600;color:rgba(255,255,255,0.85);border-bottom:2px solid transparent;transition:var(--transition-fast)}
.nav-list a:hover,.nav-list a:focus-visible{color:#fff;border-bottom-color:var(--color-accent)}
.nav-list a[aria-current="page"]{color:#fff;border-bottom-color:var(--color-accent);background:rgba(255,255,255,0.08)}
@media(max-width:767px){
  .nav-toggle{display:block}
  .nav-container{position:fixed;top:var(--header-height);left:0;width:100%;background:var(--color-primary);max-height:0;overflow:hidden;transition:max-height 0.4s ease}
  .nav-container[data-open]{max-height:500px}
  .nav-list{flex-direction:column;padding:16px 24px;gap:0}
  .nav-list a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,0.1)}
}
/* === Footer === */
.site-footer{background:var(--color-primary);color:rgba(255,255,255,0.8);padding:48px 0 24px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:600px){.footer-grid{grid-template-columns:repeat(3,1fr)}}
.footer-heading{font-family:var(--font-heading);font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;position:relative;padding-bottom:8px}
.footer-heading::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:2px;background:var(--color-accent)}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{color:rgba(255,255,255,0.7);transition:var(--transition-fast);font-size:15px}
.footer-links a:hover{color:var(--color-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.15);margin-top:32px;padding-top:24px}
.footer-bottom-inner{display:flex;flex-direction:column;gap:8px;text-align:center}
@media(min-width:600px){.footer-bottom-inner{flex-direction:row;justify-content:space-between;text-align:left}}
.footer-brand{font-family:var(--font-heading);font-weight:700;color:#fff;font-size:16px}
.footer-icp,.footer-contact{font-size:var(--font-size-small);color:rgba(255,255,255,0.5)}
/* === Buttons === */
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--color-accent);color:#fff;font-family:var(--font-heading);font-weight:700;padding:12px 28px;border:none;cursor:pointer;transition:var(--transition-fast);border-radius:2px;font-size:16px;text-decoration:none}
.btn-primary:hover,.btn-primary:focus-visible{background:#e55a2b;box-shadow:0 4px 12px rgba(255,107,53,0.3)}
.btn-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--color-accent);border:2px solid var(--color-accent);font-family:var(--font-heading);font-weight:700;padding:10px 26px;cursor:pointer;transition:var(--transition-fast);border-radius:2px;font-size:16px;text-decoration:none}
.btn-outline:hover,.btn-outline:focus-visible{background:var(--color-accent);color:#fff}
/* === Cards === */
.card{background:var(--color-background);border:1px solid var(--color-border);padding:24px;transition:var(--transition-fast);border-radius:2px}
.card:hover{box-shadow:0 6px 20px rgba(0,0,0,0.08);transform:translateY(-2px)}
/* === Tags === */
.tag{display:inline-block;background:var(--color-surface);color:var(--color-text-secondary);font-size:var(--font-size-small);padding:4px 10px;border-radius:2px;font-family:var(--font-heading)}
/* === Data badge === */
.data-badge{display:inline-flex;align-items:center;justify-content:center;background:var(--color-success);color:#fff;border-radius:4px;padding:2px 10px;font-size:14px;font-weight:700}
/* === Section title === */
.section-title{font-family:var(--font-heading);font-size:var(--font-size-h2);line-height:var(--line-height-heading);font-weight:700;margin-bottom:24px;position:relative;padding-bottom:12px}
.section-title::after{content:'';position:absolute;bottom:0;left:0;width:60px;height:3px;background:var(--color-accent)}
/* === Visually hidden === */
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* === Timeline component (generic) === */
.timeline{position:relative;padding-left:32px;border-left:2px solid var(--color-border)}
.timeline-item{position:relative;margin-bottom:32px;padding-left:16px}
.timeline-item::before{content:'';position:absolute;left:-27px;top:6px;width:12px;height:12px;background:var(--color-accent);border-radius:50%;border:2px solid var(--color-background)}
/* === Image container base === */
.img-container{position:relative;overflow:hidden;background:var(--color-surface);aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);font-size:14px;border:1px solid var(--color-border)}
/* === Reduced motion === */
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:0s!important;animation-duration:0s!important}}