/* ============================================================
   OPGSAM — Theme System
   Gaming HUD aesthetic: black base, acid lime accent, corner-bracket
   "targeting reticle" signature element on every card.
   ============================================================ */

:root{
  --bg:#0a0a0c;
  --bg-soft:#101013;
  --surface:#15161a;
  --surface-2:#1c1d22;
  --line:#2a2c33;
  --line-bright:#3d4049;
  --text:#eef0f0;
  --text-dim:#9a9da3;
  --text-faint:#5c5f66;
  --lime:#c6ff3d;
  --lime-dim:#8fbf2c;
  --lime-soft:rgba(198,255,61,0.12);
  --red:#ff3850;
  --red-soft:rgba(255,56,80,0.12);
  --ok:#c6ff3d;
  --warn:#ffb627;
  --err:#ff3850;
  --radius-sm:6px;
  --radius-md:4px;

  --font-display: 'Rajdhani', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, Menlo, Consolas, monospace;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  background-image:
    linear-gradient(rgba(198,255,61,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198,255,61,0.025) 1px, transparent 1px);
  background-size:40px 40px;
  color:var(--text);
  font-family:var(--font-body);
  font-size:15.5px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;}
ul,ol{list-style:none;}

::selection{background:var(--lime-soft);color:var(--text);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:0;}
::-webkit-scrollbar-thumb:hover{background:var(--lime);}

:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

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

/* ============================================================
   Layout shell
   ============================================================ */
.app-shell{min-height:100vh;display:flex;flex-direction:column;}
main{flex:1;}
.page-wrap{max-width:1180px;margin:0 auto;padding:0 28px;}

.site-header{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  padding:18px 28px;
  background:rgba(10,10,12,0.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:21px;
  letter-spacing:1px;
  text-transform:uppercase;
}
.brand .mark{
  width:30px;height:30px;
  border:2px solid var(--lime);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  position:relative;
  transform:rotate(45deg);
}
.brand .mark svg{width:14px;height:14px;color:var(--lime);transform:rotate(-45deg);}
.brand .lime-text{color:var(--lime);}

.main-nav{
  display:flex;align-items:center;gap:26px;
  font-size:13px;font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.8px;
  color:var(--text-dim);
}
.main-nav a{transition:color .15s;position:relative;}
.main-nav a:hover, .main-nav a.active{color:var(--lime);}
.main-nav a.active::after{
  content:"";
  position:absolute;left:0;bottom:-20px;
  width:100%;height:2px;
  background:var(--lime);
}

.menu-toggle-btn{
  display:none;
  width:38px;height:38px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--text);
  align-items:center;justify-content:center;
}
.menu-toggle-btn svg{width:16px;height:16px;}

@media (max-width:880px){
  .main-nav{
    position:fixed;top:65px;left:0;right:0;
    flex-direction:column;align-items:flex-start;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    padding:18px 24px;gap:16px;
    display:none;z-index:49;
  }
  .main-nav.open{display:flex;}
  .main-nav a.active::after{display:none;}
  .menu-toggle-btn{display:flex;}
}

.site-footer{
  border-top:1px solid var(--line);
  padding:50px 28px 30px;
  margin-top:auto;
}
.footer-grid{
  max-width:1180px;margin:0 auto;
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;
}
.footer-col h4{
  font-family:var(--font-display);
  font-size:12px;text-transform:uppercase;letter-spacing:1.5px;
  color:var(--lime);margin-bottom:14px;font-weight:700;
}
.footer-col a, .footer-col p{
  display:block;color:var(--text-dim);font-size:13.5px;
  margin-bottom:10px;transition:color .15s;
}
.footer-col a:hover{color:var(--lime);}
.footer-brand-blurb{color:var(--text-dim);font-size:13.5px;max-width:300px;margin-top:10px;line-height:1.7;}
.footer-bottom{
  max-width:1180px;margin:36px auto 0;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:10px;font-size:12px;color:var(--text-faint);
  font-family:var(--font-mono);
}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr 1fr;}}

/* ============================================================
   Signature: corner-bracket "reticle" frame
   ============================================================ */
.bracket-frame{
  position:relative;
  border:1px solid var(--line);
  background:var(--surface);
  transition:border-color .2s;
}
.bracket-frame::before, .bracket-frame::after,
.bracket-frame .bracket-tl, .bracket-frame .bracket-br{
  content:"";
  position:absolute;
  width:14px;height:14px;
  border:2px solid var(--lime);
  opacity:0;
  transition:opacity .2s;
}
.bracket-frame::before{top:-1px;left:-1px;border-right:none;border-bottom:none;}
.bracket-frame::after{bottom:-1px;right:-1px;border-left:none;border-top:none;}
.bracket-frame .bracket-tl{top:-1px;right:-1px;border-left:none;border-bottom:none;}
.bracket-frame .bracket-br{bottom:-1px;left:-1px;border-right:none;border-top:none;}
.bracket-frame:hover{border-color:var(--line-bright);}
.bracket-frame:hover::before, .bracket-frame:hover::after,
.bracket-frame:hover .bracket-tl, .bracket-frame:hover .bracket-br{opacity:1;}

/* ============================================================
   Components
   ============================================================ */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);
  font-size:11.5px;font-weight:700;
  padding:6px 13px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--text-dim);
  text-transform:uppercase;
  letter-spacing:0.5px;
}
.pill.glow{background:var(--lime-soft);border-color:var(--lime);color:var(--lime);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  font-family:var(--font-display);
  font-size:14px;font-weight:700;
  text-transform:uppercase;
  letter-spacing:1px;
  border:none;
  clip-path:polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition:transform .15s, box-shadow .15s, opacity .15s, background .15s;
}
.btn-lime{background:var(--lime);color:#0a0a0c;}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(198,255,61,0.3);}
.btn-outline{background:transparent;border:1px solid var(--line-bright);color:var(--text);}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);}
.btn:disabled{opacity:0.4;cursor:not-allowed;transform:none !important;}
.btn svg{width:16px;height:16px;}

.tool-card{
  display:flex;flex-direction:column;gap:14px;
  padding:24px;
  height:100%;
}
.tool-card .tc-icon{
  width:46px;height:46px;
  background:var(--lime-soft);
  border:1px solid var(--lime);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
  flex-shrink:0;
}
.tool-card h3{
  font-family:var(--font-display);
  font-size:18px;font-weight:700;
  text-transform:uppercase;letter-spacing:0.5px;
}
.tool-card p{font-size:13.5px;color:var(--text-dim);flex:1;}
.tool-card .tc-tag{
  font-family:var(--font-mono);
  font-size:10.5px;font-weight:700;
  color:var(--text-faint);text-transform:uppercase;letter-spacing:1px;
}

.tools-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(250px, 1fr));gap:18px;}

.widget-card{padding:30px;margin:20px 0 40px;}

.field-row{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field-row label{
  font-family:var(--font-mono);
  font-size:11.5px;font-weight:700;
  color:var(--lime);text-transform:uppercase;letter-spacing:1px;
}
.field-row input, .field-row select, .field-row textarea{
  background:var(--bg-soft);
  border:1px solid var(--line);
  color:var(--text);
  padding:13px 15px;
  font-size:15px;outline:none;
  transition:border-color .2s;
  width:100%;
  font-family:var(--font-body);
}
.field-row input:focus, .field-row select:focus, .field-row textarea:focus{border-color:var(--lime);}
.field-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(160px, 1fr));gap:16px;}

.result-block{
  display:none;
  margin-top:22px;padding:26px;
  background:var(--lime-soft);
  border:1px solid var(--lime);
  text-align:center;
  clip-path:polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
.result-block.show{display:block;animation:popIn .25s ease;}
@keyframes popIn{from{opacity:0;transform:scale(0.97);}to{opacity:1;transform:scale(1);}}
.result-block .result-value{
  font-family:var(--font-display);
  font-size:clamp(28px,5vw,44px);
  font-weight:700;
  color:var(--lime);
  letter-spacing:0.5px;
}
.result-block .result-label{font-size:12.5px;color:var(--text-dim);margin-top:6px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:0.5px;}

.error-note{
  display:none;margin-top:14px;padding:12px 15px;
  background:var(--red-soft);border:1px solid var(--red);
  color:var(--red);font-size:13.5px;
}
.error-note.show{display:block;}

.tool-page-hero{padding:50px 0 30px;}
.tool-page-hero .crumbs{
  font-family:var(--font-mono);
  font-size:12px;color:var(--text-faint);margin-bottom:18px;
  text-transform:uppercase;letter-spacing:0.5px;
}
.tool-page-hero .crumbs a:hover{color:var(--lime);}
.tool-page-hero h1{
  font-family:var(--font-display);
  font-size:clamp(28px,5vw,44px);
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.5px;
  margin-bottom:14px;
  display:flex;align-items:center;gap:16px;
}
.tool-page-hero h1 .tc-icon{width:48px;height:48px;font-size:22px;}
.tool-page-hero .lede{color:var(--text-dim);font-size:16px;max-width:640px;}

.content-block{padding:24px 0;border-top:1px solid var(--line);}
.content-block h2{
  font-family:var(--font-display);
  font-size:22px;text-transform:uppercase;letter-spacing:0.5px;
  margin-bottom:14px;
}
.content-block p{color:var(--text-dim);margin-bottom:14px;max-width:760px;}

.faq-item{border-bottom:1px solid var(--line);padding:16px 0;}
.faq-item summary{
  font-weight:700;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{transition:transform .2s;color:var(--lime);}
.faq-item[open] summary .chev{transform:rotate(180deg);}
.faq-item p{margin-top:10px;color:var(--text-dim);font-size:14px;}

.related-tools{display:grid;grid-template-columns:repeat(auto-fill, minmax(220px,1fr));gap:14px;}

.static-page{padding:50px 0 70px;max-width:760px;}
.static-page h1{
  font-family:var(--font-display);
  font-size:clamp(30px,5vw,44px);
  text-transform:uppercase;letter-spacing:0.5px;
  margin-bottom:18px;
}
.static-page h2{
  font-family:var(--font-display);
  font-size:20px;text-transform:uppercase;letter-spacing:0.5px;
  margin-top:32px;margin-bottom:12px;
}
.static-page p{color:var(--text-dim);margin-bottom:14px;}
.static-page a.inline-link{color:var(--lime);text-decoration:underline;}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:30px;}
@media (max-width:700px){.contact-grid{grid-template-columns:1fr;}}
.contact-card{padding:22px;}
.contact-card h3{font-family:var(--font-display);font-size:15px;text-transform:uppercase;margin-bottom:8px;letter-spacing:0.5px;}
.contact-card p{color:var(--text-dim);font-size:13.5px;margin-bottom:14px;}

.toast{
  position:fixed;bottom:26px;left:50%;
  transform:translateX(-50%) translateY(20px);
  background:var(--surface);border:1px solid var(--lime);
  color:var(--text);padding:11px 20px;
  font-size:13px;display:flex;align-items:center;gap:8px;
  opacity:0;pointer-events:none;
  transition:opacity .25s, transform .25s;
  z-index:200;font-family:var(--font-mono);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto;}
.toast svg{width:14px;height:14px;color:var(--lime);flex-shrink:0;}