:root{
  --bg:#0b0e13;
  --card:#121722;
  --muted:#9fb0c3;
  --accent:#4da3ff;
  --text:#e9eef5;
  --success:#1abc9c;
  --danger:#ff5c5c;
  --warning:#f1c40f;
  --border:#1f2a3a;
  --border2:#263449;
  --surface:#0d141f;
  --input-bg:#111824;
}
:root[data-theme="light"]{
  --bg:#f7f9fc;
  --card:#ffffff;
  --muted:#5b6b7c;
  --accent:#2563eb;
  --text:#0b1220;
  --success:#16a34a;
  --danger:#ef4444;
  --warning:#ca8a04;
  --border:#e2e8f0;
  --border2:#d5dde7;
  --surface:#eef2f8;
  --input-bg:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,'Noto Sans',sans-serif;line-height:1.6}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1050px;margin:0 auto;padding:16px}
.header{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:12px;position:relative}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#9b59b6)}
.brand h1{font-size:20px;margin:0}
.navbar{display:flex;align-items:center;gap:8px}
nav{display:flex;align-items:center;gap:8px}
nav a{margin:0 10px;color:var(--muted);padding:8px 10px;border-radius:10px}
nav a.active, nav a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-toggle{display:none!important;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:10px;padding:8px 10px}
.theme-toggle{border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:10px;padding:8px 10px}
.hero{background:linear-gradient(180deg,rgba(77,163,255,0.10),rgba(0,0,0,0));border:1px solid var(--border);padding:26px;border-radius:16px;margin:8px 0 18px}
.hero h2{margin:0 0 6px;font-size:26px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:0 6px 20px rgba(0,0,0,.15)}
.card h3{margin:0 0 10px;font-size:18px}
.card p{margin:0 0 12px;color:var(--muted)}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;background:var(--surface);color:var(--muted);font-size:12px}
.footer{margin:24px 0 80px;color:var(--muted);text-align:center}
hr{border:0;border-top:1px solid var(--border);margin:18px 0}
.input, textarea, select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--border2);background:var(--input-bg);color:var(--text);outline:none;font-size:16px}
textarea{min-height:140px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#00122a;padding:12px 14px;border:0;border-radius:12px;cursor:pointer;font-weight:600;min-height:40px}
.btn.secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}
.btn.danger{background:var(--danger);color:white}
.btn.success{background:var(--success);color:#001d14}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.kv{display:grid;grid-template-columns:200px 1fr;gap:8px;align-items:center}
@media(max-width:600px){.kv{grid-template-columns:1fr}}
.mono{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;}
pre{background:var(--surface);border:1px solid var(--border2);border-radius:12px;padding:12px;overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{border-bottom:1px solid var(--border);padding:10px;text-align:left}
.alert{padding:12px 14px;border-radius:12px;background:var(--surface);border:1px solid var(--border2);margin:12px 0}
.note{color:var(--muted);font-size:14px}
.ad{border:1px dashed var(--border2);border-radius:12px;padding:12px;color:#89a0b8;text-align:center;margin:10px 0}
/* Admin */
.admin-shell{display:grid;grid-template-columns:220px 1fr;gap:16px}
@media(max-width:900px){.admin-shell{grid-template-columns:1fr}}
.side{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;position:sticky;top:14px;height:max-content}
.side a{display:block;padding:10px 12px;border-radius:10px;color:var(--muted)}
.side a.active,.side a:hover{background:var(--surface);color:var(--text)}
.main{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px}
.login{max-width:480px;margin:40px auto;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px}
.small{font-size:12px;color:#93a6be}
fieldset{border:1px solid var(--border);border-radius:12px;margin:10px 0}
legend{padding:0 6px;color:#a9bfd9}
/* Mobile nav */

  nav.open{display:block}
  .nav-toggle{display:none!important;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:10px;padding:8px 10px}
}

/* Mobile / Tablet nav behavior */

  nav.open{display:flex}
  .nav-toggle{display:none!important;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:10px;padding:8px 10px}
}
/* Larger touch targets */
nav a{padding:10px 12px;border-radius:10px}
button{min-height:44px}


  nav.open{display:flex}
  .nav-toggle{display:inline-flex!important}
}


/* --- Header layout cleanup --- */
.header{display:flex;align-items:center;gap:16px;justify-content:space-between;position:relative;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand img.logo{width:44px;height:44px;border-radius:10px}
.brand .site{font-weight:700;font-size:20px;margin:0;line-height:1}
.brand .small{margin-top:2px}
/* Desktop defaults */
nav{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none !important}
/* Mobile/Tablet */
@media (max-width: 992px){
  nav{display:none;position:absolute;right:16px;top:70px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:10px;z-index:5;flex-direction:column;min-width:220px}
  nav.open{display:flex}
  .nav-toggle{display:inline-flex !important}
}

/* --- Strong mobile menu rules & larger controls --- */
@media (max-width: 992px){
  header.container{position:relative}
  /* Hide nav by default on mobile */
  header .header + nav, nav { display:none; } /* safety */
  header .navbar{gap:10px}
  #mainnav{display:none;position:absolute;right:16px;top:70px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:12px;z-index:50;flex-direction:column;min-width:240px;box-shadow:0 12px 30px rgba(0,0,0,.4)}
  #mainnav.open{display:flex}
  #mainnav a{padding:12px 14px;border-radius:10px;font-size:16px}
  /* Larger buttons for touch */
  .nav-toggle,.theme-toggle{min-height:46px;padding:10px 14px;font-size:16px}
}

/* --- Tool icon badge --- */
.icon-badge{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--surface),rgba(255,255,255,.06));display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);margin-bottom:10px;font-size:20px;overflow:hidden}
.icon-badge img{width:24px;height:24px;display:block}
.icon-badge svg{width:24px;height:24px;display:block}
.theme-toggle,.nav-toggle{min-height:44px;padding:8px 12px;font-size:15px}
@media (max-width: 992px){
  .theme-toggle,.nav-toggle{min-height:48px;padding:10px 14px;font-size:16px}
  #mainnav{display:none}
  #mainnav.open{display:flex}
}