/* Local fonts (Inter) */
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 400; font-display: optional; src: url('/asset.php?f=fonts/Inter-Regular.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 600; font-display: optional; src: url('/asset.php?f=fonts/Inter-SemiBold.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 800; font-display: optional; src: url('/asset.php?f=fonts/Inter-ExtraBold.woff2') format('woff2'); }
:root{--bg:#0b1220;--surface:#111827;--muted:#94a3b8;--text:#e5e7eb;--brand:#3b82f6;--brand-2:#60a5fa;--card:#0f172a;--border:#1f2937;--accent:#3b82f6}
/* Light theme overrides */
[data-theme="light"]{--bg:#f5f7fb;--surface:#ffffff;--muted:#475569;--text:#0b1324;--brand:#3b82f6;--brand-2:#60a5fa;--card:#ffffff;--border:#e2e8f0;--accent:#2563eb}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,var(--bg),#0a0f1a);color:var(--text);font:16px/1.6 Inter, system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,sans-serif}
html[data-theme="light"], body[data-theme="light"],
[data-theme="light"] body{background:linear-gradient(180deg,var(--bg),#ffffff)}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* Layout */
.site{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}
.container{max-width:1600px;margin:0 auto;padding:16px clamp(16px,2vw,40px)}

/* Top Nav */
.topnav{position:sticky;top:0;z-index:50;background:rgba(15,23,42,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
[data-theme="light"] .topnav{background:rgba(255,255,255,.8)}
.topnav-inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px}
.site-logo{display:inline-flex;align-items:center;border-radius:10px}
.site-logo img{display:block;border-radius:8px;transition:transform .15s ease, box-shadow .2s ease, filter .2s ease}
.site-logo:hover img,.site-logo:focus-visible img{transform:translateY(-1px) scale(1.02);box-shadow:0 0 0 2px rgba(59,130,246,.6), 0 8px 28px rgba(59,130,246,.35), 0 0 24px rgba(96,165,250,.35)}
[data-theme="light"] .site-logo:hover img,[data-theme="light"] .site-logo:focus-visible img{box-shadow:0 0 0 2px rgba(59,130,246,.5), 0 6px 22px rgba(96,165,250,.25)}
.brand-mark{appearance:none;border:none;outline:none;cursor:pointer;width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#3b82f6,#60a5fa);box-shadow:0 0 0 2px #000,0 8px 24px rgba(59,130,246,.3);display:inline-flex;align-items:center;justify-content:center}
[data-theme="light"] .brand-mark{filter:invert(1) hue-rotate(180deg)}
.brand-name{font-weight:800;letter-spacing:.3px}
.nav-links{display:flex;gap:10px;flex-wrap:wrap}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border:1px solid var(--border);border-radius:10px;color:var(--text);background:linear-gradient(180deg,#0b1324,#0a1222)}
.nav-link:hover{border-color:#334155}
[data-theme="light"] .nav-link{background:#ffffff;border-color:var(--border);color:#0b1324}
[data-theme] .nav-link.active{border-color:#3b82f6;color:#e5e7eb;background:rgba(59,130,246,.12)}
[data-theme="light"] .nav-link.active{background:#eff6ff;border-color:#3b82f6;color:#0b1324}
/* Dropdown */
.dropdown{position:relative;display:inline-flex;align-items:center}
.dropdown-menu{display:none;position:absolute;top:100%;left:0;min-width:220px;background:#0b1324;border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.35);padding:8px;z-index:60;margin-top:-4px;padding-top:12px}
[data-theme="light"] .dropdown-menu{background:#ffffff;border-color:var(--border);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.dropdown:hover .dropdown-menu,.dropdown-menu:hover{display:block}
.dropdown-title{color:#9ca3af;font-size:.8rem;padding:6px 8px}
[data-theme="light"] .dropdown-title{color:#64748b}
.dropdown-item{display:block;padding:8px 10px;border-radius:8px;color:var(--text);text-decoration:none}
.dropdown-item:hover{background:#0d162b}
[data-theme="light"] .dropdown-item{color:#0b1324}
[data-theme="light"] .dropdown-item:hover{background:#eef2ff}
.dropdown-sep{height:1px;background:#1f2937;margin:6px 4px}
[data-theme="light"] .dropdown-sep{background:#e2e8f0}

/* Media */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:grid;grid-template-areas:'stage' 'caption';grid-template-rows:1fr auto;z-index:200}
.lightbox[hidden]{display:none}
.lb-stage{grid-area:stage;display:flex;align-items:center;justify-content:center;padding:20px}
.lb-stage img{max-width:90vw;max-height:80vh;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb-caption{grid-area:caption;color:#cbd5e1;padding:10px 16px;text-align:center}
.lb-close,.lb-prev,.lb-next{position:fixed;top:12px;background:rgba(0,0,0,.5);color:#fff;border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:6px 10px;cursor:pointer}
.lb-close{right:12px;font-size:20px}
.lb-prev{left:12px;top:50%;transform:translateY(-50%);font-size:26px}
.lb-next{right:12px;top:50%;transform:translateY(-50%);font-size:26px}
[data-theme="light"] .lightbox{background:rgba(255,255,255,.95)}
[data-theme="light"] .lb-caption{color:#0b1324}
[data-theme="light"] .lb-close,[data-theme="light"] .lb-prev,[data-theme="light"] .lb-next{background:rgba(0,0,0,.7)}

/* Main */
.main{background:radial-gradient(1000px 300px at 10% -20%,#0e1a30,transparent),radial-gradient(800px 300px at 90% -10%,#161a2b,transparent)}
[data-theme="light"] .main{background:radial-gradient(1000px 300px at 10% -20%,rgba(224,231,255,0.4),transparent),radial-gradient(800px 300px at 90% -10%,rgba(219,234,254,0.3),transparent)}
.section{border:1px solid var(--border);border-radius:14px;background:linear-gradient(180deg,#0b1324,#0b1426);box-shadow:0 10px 30px rgba(0,0,0,.35)}
[data-theme="light"] .section{background:linear-gradient(180deg,#ffffff,#f6f9ff);box-shadow:0 6px 18px rgba(0,0,0,.08)}
.section + .section{margin-top:16px}
.section-header{padding:16px 16px 0 16px}
.section-body{padding:16px}
.muted{color:var(--muted)}
.h1{font-size:1.5rem;margin:0 0 6px 0}
.h2{font-size:1.1rem;margin:0 0 6px 0}
.grid{display:grid;gap:12px}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){.grid.cols-3{grid-template-columns:1fr 1fr}}
@media (max-width:900px){.grid.cols-4{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.grid.cols-3{grid-template-columns:1fr}}
@media (max-width:600px){.grid.cols-4{grid-template-columns:1fr}}
.card{border:1px solid var(--border);border-radius:12px;padding:14px;background:linear-gradient(180deg,#0d1529,#0c1528)}
[data-theme="light"] .card{background:#ffffff}
.badge{display:inline-block;padding:3px 8px;border:1px solid var(--border);border-radius:999px;background:#0e172a;color:#cbd5e1;font-size:.75rem}
[data-theme="light"] .badge{background:#f1f5f9;color:#334155}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:6px 10px;border:1px solid var(--border);border-radius:999px;background:#0e172a;color:#cbd5e1;font-size:.85rem}
.chip:hover{background:#111e36;border-color:#334155;text-decoration:none}
.chip.active{background:rgba(59,130,246,.15);border-color:#3b82f6;color:#e5e7eb}
[data-theme="light"] .chip{background:#ffffff;color:#0b1324}
[data-theme="light"] .chip:hover{background:#eef2ff;border-color:#cbd5e1}
[data-theme="light"] .chip.active{background:#eff6ff;border-color:#3b82f6;color:#0b1324}

/* Lists */
.list{display:flex;flex-direction:column}
.list-item{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed #1e293b}
[data-theme="light"] .list-item{border-bottom-color:#e2e8f0}
.list-item:last-child{border-bottom:none}
.meta{color:#9ca3af;font-size:.9rem}
[data-theme="light"] .meta{color:#64748b}

/* Forms */
.input, .select, .button{appearance:none;background:#0b1324;color:var(--text);border:1px solid var(--border);border-radius:10px;padding:10px 14px;font-size:0.95rem;line-height:1.5}
[data-theme="light"] .input,[data-theme="light"] .select,[data-theme="light"] .button{background:#ffffff;color:#0b1324}
.button{cursor:pointer;font-weight:500;transition:all 0.2s ease}
.button:hover{opacity:0.9;transform:translateY(-1px)}
.button.primary{background:#3b82f6;border-color:#3b82f6;color:#fff;font-weight:600}
.button.primary:hover{background:#2563eb;border-color:#2563eb;opacity:1;box-shadow:0 0 15px rgba(59,130,246,0.5)}
[data-theme="light"] .button.primary{background:#3b82f6;border-color:#3b82f6;color:#fff}
[data-theme="light"] .button.primary:hover{background:#2563eb;border-color:#2563eb;color:#fff}
.button.secondary{background:transparent;border-color:var(--border)}
.button.ghost{background:transparent;border:none}
.button.small{padding:6px 12px;font-size:0.85rem}
.button.large{padding:12px 20px;font-size:1rem}
.btn{appearance:none;background:#0b1324;color:var(--text);border:1px solid var(--border);border-radius:10px;padding:10px 14px;font-size:0.95rem;line-height:1.5;cursor:pointer;font-weight:500;transition:all 0.2s ease}
.btn:hover{opacity:0.9;transform:translateY(-1px)}
.btn-primary{background:#3b82f6;border-color:#3b82f6;color:#fff;font-weight:600}
.btn-primary:hover{background:#2563eb;border-color:#2563eb;opacity:1;box-shadow:0 0 15px rgba(59,130,246,0.5)}
.btn-secondary{background:transparent;border-color:var(--border)}
.btn-ghost{background:transparent;border:none}
.btn-danger{background:#ef4444;border-color:#dc2626;color:#fff}
.btn-danger-ghost{background:transparent;border:1px solid #ef4444;color:#ef4444}
[data-theme="light"] .btn{background:#ffffff;color:#0b1324}
[data-theme="light"] .btn-primary{background:#3b82f6;border-color:#3b82f6;color:#fff}
[data-theme="light"] .btn-primary:hover{background:#2563eb;border-color:#2563eb;color:#fff}
[data-theme="light"] .btn-danger{background:#ef4444;color:#fff}
.controls{display:flex;gap:8px;flex-wrap:wrap}
/* Visible keyboard focus for interactive chrome */
.button:focus-visible,.btn:focus-visible,.nav-link:focus-visible,.chip:focus-visible,a:focus-visible{outline:2px solid #3b82f6;outline-offset:2px}

/* Footer */
.footer{border-top:1px solid var(--border);background:#0b1320}
.footer-inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.copy{color:#94a3b8;font-size:.9rem}
.footer .controls{display:flex;align-items:center;gap:8px}
[data-theme="light"] .footer{background:#ffffff}
[data-theme="light"] .copy{color:#0b1324}
/* Footer logo: invert (light favicon) only on the dark footer */
html[data-theme="dark"] .footer-logo{filter:invert(1)}

/* Cookie/notice banner */
.banner{border:1px solid var(--border);border-radius:12px;background:linear-gradient(180deg,#ffffff,#f6f9ff);box-shadow:0 6px 18px rgba(0,0,0,.08)}
[data-theme="light"] .banner{background:linear-gradient(180deg,#0b1324,#0b1426);box-shadow:none}
.banner-text{color:#0b1324}
[data-theme="light"] .banner-text{color:#ffffff}
/* Cookie banner link colors override */
#cookieBanner .nav-link{color:#0b1324 !important}
[data-theme="light"] #cookieBanner .nav-link{color:#ffffff !important}

/* Chat */
.chat-wrap{display:flex;flex-direction:column;gap:10px}
.bubble{max-width:900px;padding:12px 14px;border-radius:12px;border:1px solid var(--border)}
.bubble.user{background:#121e36;text-align:right;margin-left:auto}
.bubble.assistant{background:#111b33}
[data-theme="light"] .bubble.user{background:#f8fafc}
[data-theme="light"] .bubble.assistant{background:#f1f5f9}
.bubble.media-bubble{background:#0d1529}
[data-theme="light"] .bubble.media-bubble{background:#f8fafc}
.media-item img{max-width:100%;border-radius:8px;border:1px solid var(--border)}

/* Code blocks with copy button */
.code-wrap{position:relative;border:1px solid var(--border);border-radius:10px;overflow:auto}
/* Dark theme: white code box, dark text */
.code-wrap pre{margin:0;padding:12px;background:#ffffff;color:#0b1324}
/* Light theme: dark code box, white text */
[data-theme="light"] .code-wrap pre{background:#0b1324;color:#e5e7eb}
.code-wrap code{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size:.9rem}
.code-wrap .controls{position:absolute;top:6px;right:6px}
.copy-btn{padding:6px 10px;border-radius:8px;border:1px solid var(--border);cursor:pointer}
/* Dark theme: black button on white box */
.copy-btn{background:#0b1324;color:#e5e7eb}
/* Light theme: white button on dark box */
[data-theme="light"] .copy-btn{background:#ffffff;color:#0b1324;border-color:#cbd5e1}
.copy-btn:hover{opacity:.9}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
    scroll-behavior:auto !important;
  }
}