/* ========== Reset & Variables ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --c-primary:#00D4FF;
  --c-accent:#FF6B00;
  --c-bg:#0D0D0D;
  --c-card:#1A1A2E;
  --c-text:#FFFFFF;
  --c-text-muted:#B0B0B0;
  --c-border:rgba(0,212,255,0.4);
  --gradient:linear-gradient(135deg,#00D4FF,#FF6B00);
  --font-heading:Impact,Haettenschweiler,'Arial Narrow Bold',sans-serif;
  --font-body:'Noto Sans SC','Inter',system-ui,sans-serif;
  --font-mono:'Fira Code','Consolas',monospace;
  --header-h:4rem;
  --content-w:1200px;
  --gap:1.5rem;
}
html{font-size:16px;scroll-behavior:smooth}
body{background:var(--c-bg);color:var(--c-text);font-family:var(--font-body);line-height:1.6;min-height:100vh}
a{color:var(--c-primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--c-accent)}
a:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
img{max-width:100%;display:block}
ul{list-style:none}

/* ========== Skip Link ========== */
.skip-link{position:fixed;top:-100px;left:0;z-index:9999;padding:.5rem 1rem;background:var(--c-accent);color:#000;font-weight:700;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.skip-link:focus{top:0;clip:auto;white-space:normal;width:auto;height:auto}

/* ========== Header ========== */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:var(--c-bg);border-bottom:1px solid var(--c-border);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.header-inner{max-width:var(--content-w);margin:0 auto;padding:0 var(--gap);display:flex;flex-direction:column}
.header-top{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);flex-wrap:wrap}
.header-brand{font-family:var(--font-heading);font-size:1.8rem;font-style:italic;color:var(--c-text);letter-spacing:2px;text-transform:uppercase}
.header-brand:hover{color:var(--c-primary)}
.header-slogan{font-size:0.8rem;color:var(--c-text-muted);text-transform:uppercase;letter-spacing:3px;display:none}
@media (min-width:768px){.header-slogan{display:inline-block}}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:.5rem}
.nav-toggle-bar{display:block;width:24px;height:2px;background:var(--c-text);transition:all .3s}
@media (max-width:767px){
  .nav-toggle{display:flex}
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:rotate(45deg) translate(4px,4px)}
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:rotate(-45deg) translate(4px,-4px)}
}
.header-nav{display:flex;align-items:center;transition:max-height .4s ease,opacity .3s}
@media (max-width:767px){
  .header-nav{max-height:0;overflow:hidden;flex-direction:column;width:100%;background:var(--c-card);padding:0 var(--gap)}
  .header-nav[data-open]{max-height:500px;padding:var(--gap)}
}
.nav-list{display:flex;gap:1rem;flex-wrap:wrap;padding:.5rem 0}
@media (max-width:767px){.nav-list{flex-direction:column;gap:.75rem;width:100%}}
.nav-list a{font-family:var(--font-heading);font-size:1.1rem;font-style:italic;color:var(--c-text-muted);text-transform:uppercase;padding:.25rem .5rem;transition:color .2s,border-bottom .2s;position:relative}
.nav-list a:hover{color:var(--c-primary)}
.nav-list a[aria-current="page"]{color:var(--c-primary);border-bottom:2px solid var(--c-primary)}
.nav-list a:focus-visible{outline:2px solid var(--c-accent)}

/* ========== Scroll Progress ========== */
.scroll-progress{position:absolute;bottom:-2px;left:0;height:3px;background:var(--gradient);width:0;transition:width 0.1s linear;pointer-events:none}

/* ========== Footer ========== */
.site-footer{background:var(--c-card);border-top:2px solid var(--c-border);padding:2rem var(--gap);margin-top:4rem}
.footer-inner{max-width:var(--content-w);margin:0 auto;display:grid;grid-template-columns:1fr;gap:1.5rem}
@media (min-width:768px){.footer-inner{grid-template-columns:repeat(3,1fr)}}
.footer-logo{font-family:var(--font-heading);font-size:1.6rem;font-style:italic;color:var(--c-primary)}
.footer-tagline{font-size:0.85rem;color:var(--c-text-muted);margin-top:.25rem}
.footer-links ul{display:flex;flex-direction:column;gap:.5rem}
.footer-links a{color:var(--c-text-muted);transition:color .2s}
.footer-links a:hover{color:var(--c-accent)}
.footer-contact p{font-size:0.9rem;color:var(--c-text-muted);margin-bottom:.25rem}
.footer-legal{font-size:0.8rem;color:var(--c-text-muted);border-top:1px solid var(--c-border);padding-top:1rem;text-align:center;grid-column:1/-1}
.footer-legal p{margin-bottom:.25rem}

/* ========== Shared Components ========== */
.cta-btn{display:inline-block;padding:.75rem 2rem;font-family:var(--font-heading);font-size:1.2rem;font-style:italic;text-transform:uppercase;background:var(--gradient);color:#000;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 15px rgba(0,212,255,0.3)}
.cta-btn:hover{transform:scale(1.05);box-shadow:0 6px 25px rgba(0,212,255,0.5)}
.cta-btn:focus-visible{outline:2px solid var(--c-accent)}

.section{max-width:var(--content-w);margin:0 auto;padding:4rem var(--gap)}
.section--wide{max-width:100%;padding:4rem 0}
.section--narrow{max-width:800px}

.card{background:var(--c-card);border:1px solid var(--c-border);padding:1.5rem;transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(0,212,255,0.15)}
.card--glow{border-color:transparent;box-shadow:0 0 20px var(--c-border)}
.card--glow:hover{box-shadow:0 0 35px var(--c-border)}

.frame{position:relative;border:2px solid var(--c-primary);padding:1rem;display:inline-block}
.frame::before{content:'';position:absolute;top:-4px;left:-4px;right:-4px;bottom:-4px;border:1px dashed var(--c-accent);pointer-events:none}

/* ========== Responsive ========== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important}
  .scroll-progress{display:none}
}

/* ========== Utilities ========== */
.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}