:root{
  --ink:#20241F; --paper:#F4F2EA; --surface:#FFFFFF;
  --moss:#3C5A45; --moss-deep:#26402F;
  --clay:#C7754F; --clay-bg:#F7E6DC;
  --gold:#C9A24C;
  --line:rgba(32,36,31,0.13); --muted:rgba(32,36,31,0.6);
  --green-bg:#E5F0E7; --green:#3C5A45;
  --amber-bg:#FBEFDC; --amber:#B87F2E;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'Inter',sans-serif;line-height:1.5;}
h1,h2{font-family:'Fraunces',serif;font-weight:600;margin:0;}
.mono{font-family:'IBM Plex Mono',monospace;letter-spacing:0.02em;}
.wrap{max-width:900px;margin:0 auto;padding:0 22px 70px;}
a{color:var(--clay);}

/* SITE HEADER / NAV */
.site-header{border-bottom:1px solid var(--line);background:var(--surface);}
.site-nav{max-width:900px;margin:0 auto;padding:16px 22px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}
.site-logo{font-family:'Fraunces',serif;font-weight:600;font-size:19px;color:var(--moss-deep);text-decoration:none;}
.site-links{display:flex;gap:18px;flex-wrap:wrap;}
.site-links a{font-size:13px;font-weight:500;color:var(--muted);text-decoration:none;}
.site-links a:hover, .site-links a.current{color:var(--moss-deep);}

.top{margin:30px 0 8px;}
.top .eyebrow{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:0.06em;text-transform:uppercase;color:var(--clay);}
.top h1{font-size:28px;color:var(--moss-deep);margin-top:8px;}
.top p{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:60ch;}

.intro-copy{font-size:14.5px;color:rgba(32,36,31,0.78);max-width:68ch;margin:18px 0 26px;line-height:1.65;}
.intro-copy h2{font-size:16.5px;color:var(--moss-deep);margin-top:22px;margin-bottom:8px;}

.tabs{display:flex;gap:8px;margin:26px 0 20px;flex-wrap:wrap;}
.tab-btn{
  font-family:'IBM Plex Mono',monospace;font-size:12.5px;padding:9px 16px;border-radius:20px;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;color:var(--muted);font-weight:500;
  text-decoration:none;display:inline-block;
}
.tab-btn.active, .tab-btn.current{background:var(--moss-deep);color:#fff;border-color:var(--moss-deep);}

.panel{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px;}

.row{margin-bottom:16px;}
.row label{display:block;font-size:13px;font-weight:600;color:var(--moss-deep);margin-bottom:6px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
input,select{
  width:100%;padding:11px 13px;border-radius:8px;border:1px solid var(--line);
  background:var(--paper);font-family:'Inter',sans-serif;font-size:14.5px;color:var(--ink);
}
input:focus,select:focus{outline:2px solid var(--clay);outline-offset:1px;}

.btn{
  padding:11px 20px;border-radius:8px;border:none;background:var(--clay);color:#fff;
  font-weight:600;font-size:14px;cursor:pointer;font-family:'Inter',sans-serif;
}
.btn:hover{background:var(--moss-deep);}
.ad-slot{
  background:repeating-linear-gradient(45deg, rgba(32,36,31,0.04), rgba(32,36,31,0.04) 10px, rgba(32,36,31,0.02) 10px, rgba(32,36,31,0.02) 20px);
  border:1px dashed var(--line);border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:0.05em;
}
.ad-top{height:90px;margin:20px 0;}
.ad-between{height:100px;margin:24px 0;}

.clock-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 16px;position:relative;}
.clock-card .tz-name{font-size:12.5px;font-weight:600;color:var(--moss-deep);margin-bottom:6px;}
.clock-card .tz-time{font-family:'IBM Plex Mono',monospace;font-size:20px;color:var(--clay);}
.clock-card .tz-date{font-size:11px;color:var(--muted);margin-top:3px;}
.clock-card .tz-remove{position:absolute;top:8px;right:10px;background:none;border:none;color:var(--muted);cursor:pointer;font-size:15px;}
.meeting-row{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px solid var(--line);font-size:13.5px;}
.meeting-row b{color:var(--moss-deep);}

.btn-outline{background:transparent;border:1px solid var(--line);color:var(--moss-deep);}
.btn-outline.active{background:var(--moss-deep);color:#fff;border-color:var(--moss-deep);}

.result-box{margin-top:18px;padding:18px 20px;border-radius:12px;background:var(--green-bg);border-left:3px solid var(--moss);display:none;}
.result-box.show{display:block;}
.result-box .big{font-family:'Fraunces',serif;font-size:26px;color:var(--moss-deep);font-weight:600;}
.result-box .sub{font-size:13px;color:var(--muted);margin-top:4px;}
.result-box .breakdown{margin-top:14px;font-size:13.5px;color:rgba(32,36,31,0.75);}
.result-box .breakdown div{display:flex;justify-content:space-between;padding:4px 0;border-top:1px solid rgba(32,36,31,0.08);}

.inv-form{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr auto;gap:10px;align-items:end;margin-bottom:20px;}
.inv-form .row{margin-bottom:0;}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
th{text-align:left;font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:0.04em;color:var(--muted);padding:8px 10px;border-bottom:2px solid var(--line);}
td{padding:10px;border-bottom:1px solid var(--line);}
.status-pill{font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:3px 9px;border-radius:12px;cursor:pointer;text-transform:uppercase;}
.status-pill.paid{background:var(--green-bg);color:var(--green);}
.status-pill.unpaid{background:var(--amber-bg);color:var(--amber);}
.del-btn{background:none;border:none;color:var(--clay);cursor:pointer;font-size:16px;}
.totals-strip{display:flex;gap:24px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);flex-wrap:wrap;}
.totals-strip div{font-size:13px;}
.totals-strip b{font-family:'Fraunces',serif;font-size:18px;display:block;color:var(--moss-deep);}

/* HOMEPAGE TOOL CARDS */
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:30px 0;}
.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;display:block;transition:transform .15s ease, box-shadow .15s ease;}
.tool-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(32,36,31,0.08);}
.tool-card h2{font-size:18px;color:var(--moss-deep);margin-bottom:8px;}
.tool-card p{font-size:13.5px;color:var(--muted);margin:0;}

/* FOOTER */
.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:28px 22px;text-align:center;}
.site-footer .foot-links{display:flex;justify-content:center;gap:20px;margin-bottom:10px;flex-wrap:wrap;}
.site-footer a{font-size:12.5px;color:var(--muted);text-decoration:none;}
.site-footer .copyright{font-size:12px;color:var(--muted);}

@media (max-width:760px){
  .two-col{grid-template-columns:1fr;}
  .inv-form{grid-template-columns:1fr;}
  .tool-grid{grid-template-columns:1fr;}
}