:root{
  --bg:#0d0f14;
  --panel:#151923;
  --panel-2:#1a2030;
  --text:#f3f5fa;
  --muted:#a9b0bf;
  --accent:#5fe1a5;
  --ring:0 0 0 3px rgba(95,225,165,.25);
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;background:var(--bg);color:var(--text);line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:20px}
.header{position:sticky;top:0;background:rgba(13,15,20,.82);backdrop-filter:saturate(130%) blur(6px);border-bottom:1px solid rgba(255,255,255,.06);z-index:10}
.nav{display:flex;gap:16px;align-items:center;justify-content:center;padding:10px 20px;flex-wrap:wrap}
.brand{font-weight:800;font-size:26px;letter-spacing:.2px}
.navspace{display:none}

/* Dropdown menu */
.dropdown{ position: relative; }
#menuToggle{ display:inline-flex; align-items:center; gap:6px; padding:8px 10px; border-radius:10px;
  background: rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.08); color: var(--text); cursor:pointer;  font-size:16px; padding:10px 12px; font-weight:600;}
#menuToggle:focus{ outline:none; box-shadow: var(--ring); border-color: rgba(255,255,255,.2); }
.dropdown-panel{ position:absolute; top:110%; left:0; min-width:260px; max-height:60vh; overflow:auto; padding:10px;
  background:linear-gradient(180deg,var(--panel),var(--panel-2)); border:1px solid rgba(255,255,255,.12); border-radius:12px;
  display:none; z-index: 20; box-shadow: 0 10px 24px rgba(0,0,0,.35); }
.dropdown.open .dropdown-panel{ display:block; }
.dropdown-panel a{ display:block; padding:8px 10px; border-radius:8px; color:var(--text); text-decoration:none;  font-size:15px;}
.dropdown-panel a:hover{ background: rgba(255,255,255,.06); text-decoration:none; }
.dropdown-section{ font-size:12px; color: var(--muted); padding:6px 10px 2px; }
@media (max-width:720px){
  .dropdown-panel{ left:auto; right:0; width:min(90vw, 360px); }
}

.card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px}
.grid{display:grid;gap:14px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:980px){ .grid-3{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .grid-3, .grid-2{grid-template-columns:1fr} }

.label{font-size:13px;color:var(--muted);margin-bottom:6px;display:block}
.input, select{width:100%;padding:12px;border-radius:12px;background:#0f131d;border:1px solid rgba(255,255,255,.12);color:var(--text);outline:none}
.input:focus, select:focus{border-color:var(--accent);box-shadow:var(--ring)}
.btn{background:#0f151f;border:1px solid rgba(255,255,255,.14);color:var(--text);padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:600}
.btn:hover{transform:translateY(-1px);border-color:rgba(255,255,255,.25)}
.btn.primary{background:linear-gradient(180deg,#123027,#101a2a);border-color:rgba(95,225,165,.5)}
.small{color:var(--muted);font-size:13px}
.result{font-weight:800;font-size:18px}
.section-title{margin:0 0 6px 0}
footer{margin-top:30px;color:var(--muted);font-size:13px}

.tight{gap:8px}

/* --- Light theme + comfy spacing update v12 --- */

:root{
  --bg:#f6f8fb;
  --panel:#ffffff;
  --panel-2:#fbfdff;
  --text:#0f172a;   /* slate-900 */
  --muted:#5b6476;  /* slate-500-ish */
  --accent:#2fb07b; /* fresh green */
  --ring:0 0 0 3px rgba(47,176,123,.25);
}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;background:var(--bg);color:var(--text);line-height:1.65; font-size:17px;}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:28px}
.header{position:sticky;top:0;background:rgba(255,255,255,.86);backdrop-filter:saturate(130%) blur(6px);border-bottom:1px solid #e6e9f2;z-index:10}
.nav{display:flex;gap:18px;align-items:center;justify-content:center;padding:14px 22px;flex-wrap:wrap}
.brand{font-weight:800;font-size:26px;letter-spacing:.2px;color:var(--text)}
.navspace{display:none}

/* Dropdown menu */
.dropdown{ position: relative; }
#menuToggle{ display:inline-flex; align-items:center; gap:8px; padding:12px 14px; border-radius:12px;
  background: #f1f4f9; border:1px solid #e3e8f2; color: var(--text); cursor:pointer; font-size:16px; font-weight:600; }
#menuToggle:focus{ outline:none; box-shadow: var(--ring); border-color: rgba(47,176,123,.45); }
.dropdown-panel{ position:absolute; top:110%; left:0; min-width:280px; max-height:60vh; overflow:auto; padding:12px;
  background:var(--panel); border:1px solid #e6e9f2; border-radius:14px;
  display:none; z-index: 20; box-shadow: 0 14px 32px rgba(16,24,40,.12); }
.dropdown.open .dropdown-panel{ display:block; }
.dropdown-panel a{ display:block; padding:10px 12px; border-radius:10px; color:var(--text); text-decoration:none; font-size:15px; }
.dropdown-panel a:hover{ background: #f5f7fb; text-decoration:none; }
.dropdown-section{ font-size:12px; color: var(--muted); padding:6px 10px 6px; }

.card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid #e6e9f2;border-radius:16px;padding:22px; box-shadow: 0 2px 10px rgba(16,24,40,.04)}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:980px){ .grid-3{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .grid-3, .grid-2{grid-template-columns:1fr} }

.label{font-size:14px;color:var(--muted);margin-bottom:8px;display:block}
.input, select{width:100%;padding:14px 14px;border-radius:12px;background:#ffffff;border:1px solid #d8dee9;color:var(--text);outline:none; font-size:16px;}
.input:focus, select:focus{border-color:var(--accent);box-shadow:var(--ring)}
.btn{background:#ffffff;border:1px solid #d8dee9;color:var(--text);padding:12px 16px;border-radius:12px;cursor:pointer;font-weight:700; font-size:16px;}
.btn:hover{transform:translateY(-1px);border-color:#cbd3e2;background:#f7f9fd}
.btn.primary{background:linear-gradient(180deg,#e9f7f1,#f3f9ff);border-color:rgba(47,176,123,.35)}

.small{color:var(--muted);font-size:14px}
.result{font-weight:800;font-size:20px}
.section-title{margin:0 0 8px 0}

footer{margin-top:34px;color:var(--muted);font-size:13px}
.tight{gap:8px}



/* --- Dark theme refresh v13 (comfortable spacing retained) --- */
:root{
  --bg:#0e1218;
  --panel:#141b25;
  --panel-2:#101621;
  --text:#e6edf3;
  --muted:#98a6b8;
  --accent:#5fe1a5;
  --ring:0 0 0 3px rgba(95,225,165,.25);
}
body{background:var(--bg);color:var(--text);}
.header{background:rgba(14,18,24,.86);border-bottom:1px solid rgba(255,255,255,.08)}
.brand{color:var(--text)}
#menuToggle{ background: rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.12); color: var(--text); }
#menuToggle:focus{ box-shadow: var(--ring); border-color: rgba(95,225,165,.45); }
.dropdown-panel{ background:linear-gradient(180deg,var(--panel),var(--panel-2)); border:1px solid rgba(255,255,255,.12); box-shadow: 0 14px 32px rgba(0,0,0,.45); }
.dropdown-panel a:hover{ background: rgba(255,255,255,.06); }
.card{ background:linear-gradient(180deg,var(--panel),var(--panel-2)); border:1px solid rgba(255,255,255,.10); box-shadow: 0 2px 10px rgba(0,0,0,.35); }
.input, select{ background:#0f141d; border:1px solid rgba(255,255,255,.16); color:var(--text); }
.input:focus, select:focus{ border-color: var(--accent); box-shadow: var(--ring); }
.btn{ background:#0f151f; border:1px solid rgba(255,255,255,.18); color:var(--text); }
.btn:hover{ border-color: rgba(255,255,255,.3); background:#101a26; }
.btn.primary{ background:linear-gradient(180deg,#132b24,#101a2a); border-color: rgba(95,225,165,.4); }
.small{ color:var(--muted); }


/* --- v14: Larger typography + brand logo tweaks --- */
body{ font-size:18.5px; line-height:1.7; }
.nav{ gap:20px; padding:16px 24px; }
.brand{ display:inline-flex; align-items:center; gap:10px; font-size:26px; }
.brandtext{ letter-spacing:.2px; }
.logo{ width:44px; height:44px; display:inline-flex; align-items:center; justify-content:center; }
.card{ padding:24px; border-radius:18px; }
.grid{ gap:22px; }
.input, select{ font-size:17px; padding:15px 16px; border-radius:12px; }
.label{ font-size:15px; margin-bottom:8px; }
.btn{ font-size:17px; padding:13px 18px; border-radius:12px; }
.result{ font-size:22px; }
.section-title{ font-size:24px; }
.dropdown-panel a{ font-size:16px; padding:11px 12px; }
#menuToggle{ font-size:17px; padding:12px 16px; border-radius:12px; }

:root{ --soil:#6b4e2e; --steel:#9aa6b2; }

/* --- v16: Larger responsive logo + brand text --- */
.logo{ width:72px; height:72px; display:inline-flex; align-items:center; justify-content:center; }
.logo svg{ width:100%; height:100%; display:block; }
.brand{ font-size:28px; }
@media (max-width:640px){
  .logo{ width:48px; height:48px; }
  .brand{ font-size:24px; }
}

/* -- v17: Share button in top-right -- */
.nav{ position: relative; } /* enable absolute positioning for share button */
.sharebtn{
  position:absolute; right:16px; top:50%; transform:translateY(-50%);
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 12px; border-radius:12px; cursor:pointer;
  background:#0f151f; border:1px solid rgba(255,255,255,.18); color:var(--text);
  font-weight:700; font-size:16px;
}
.sharebtn:hover{ border-color: rgba(255,255,255,.3); background:#101a26; }
.sharebtn svg{ width:18px; height:18px; display:block; }
@media (max-width:640px){
  .sharebtn{ right:10px; padding:9px 10px; font-size:15px; }
}
.footer-links{ margin-top:10px; display:flex; flex-wrap:wrap; gap:10px; color:var(--muted); }
.footer-links a{ color:var(--muted); text-decoration:none; border-bottom:1px dotted rgba(255,255,255,.25); }
.footer-links a:hover{ color:var(--text); border-bottom-color: var(--text); }

/* v19: vertical rhythm for stacked cards */
.card + .card{ margin-top: 22px; }

main.container{ display:block; }

main.container .card:last-of-type{ margin-bottom: 16px; }

/* v21: remove share button visually */
.sharebtn{ display:none !important; }


/* v21j: Center dropdown on mobile */
@media (max-width:640px){
  .header .nav{ justify-content:center; }
  .dropdown{ display:flex; justify-content:center; width:100%; }
  #menuToggle{ margin:0 auto; }
  .dropdown-panel{
    left:50% !important;
    right:auto !important;
    transform:translateX(-50%);
    max-width:92vw;
  }
}