:root{
  --ink:#0A2023;
  --panel:#0F2A2E;
  --panel-2:#123338;
  --line: rgba(224,236,234,0.14);
  --line-strong: rgba(224,236,234,0.28);
  --foam:#E4EFEC;
  --foam-dim: rgba(228,239,236,0.62);
  --brass:#D6A24B;
  --brass-dim: rgba(214,162,75,0.35);
  --kelp:#4C8A7C;
  --kelp-dim: rgba(76,138,124,0.35);
  --tide-low:#7E97A0;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background: radial-gradient(1200px 800px at 15% -10%, #123840 0%, transparent 60%), var(--ink);
  color: var(--foam);
  font-family: 'Work Sans', sans-serif;
  line-height:1.5;
  padding: 32px 20px 80px;
  min-height:100vh;
}
.wrap{max-width: 920px; margin: 0 auto;}
header{
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
  margin-bottom: 26px;
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap: 20px;
  flex-wrap:wrap;
}
h1{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size: clamp(28px, 4vw, 40px);
  margin:0 0 6px;
  letter-spacing: -0.01em;
}
header p{ margin:0; max-width: 46ch; color: var(--foam-dim); font-size: 14.5px; }
.moonlabel{ text-align:right; font-family:'Fraunces', serif; font-size:14px; color: var(--brass); white-space:nowrap; }
.moonlabel .pct{font-size:26px; display:block; font-weight:600;}

.controls{
  display:flex; gap:14px; flex-wrap:wrap; align-items:flex-end;
  margin-bottom: 14px; padding: 14px 16px;
  background: var(--panel); border: 1px solid var(--line);
}
.controls label{font-size:12.5px; color:var(--foam-dim); display:block; margin-bottom:3px;}
.controls input{
  background: var(--panel-2); border:1px solid var(--line-strong); color: var(--foam);
  padding:7px 9px; font-family:'Work Sans',sans-serif; font-size:13.5px; width: 108px;
}
.controls input.station{ width:150px; }
.controls button{
  background: transparent; border:1px solid var(--brass-dim); color: var(--brass);
  padding:8px 14px; font-size:13px; cursor:pointer; font-family:'Work Sans',sans-serif; height: 34px;
}
.controls button:hover{ border-color: var(--brass); }
.controls .place{font-size:13px; color:var(--foam-dim);}
.controls .tide-status{ font-size:12px; color:var(--foam-dim); width:100%; }

.legend{ display:flex; gap:18px; flex-wrap:wrap; font-size:12px; color:var(--foam-dim); margin-bottom:18px; }
.legend span{display:inline-flex; align-items:center; gap:6px;}
.dot{width:9px;height:9px; display:inline-block; border-radius:50%;}
.dot.prime{background:var(--brass);}
.dot.major{background:var(--kelp);}
.dot.minor{background:var(--tide-low);}

.pagebar{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom: 10px;
}
.pagebar .range{ font-family:'Fraunces', serif; font-size:15px; color: var(--foam); }
.pagebar .navbtns button{
  background:transparent; border:1px solid var(--line-strong); color:var(--foam);
  padding:6px 12px; font-size:13px; cursor:pointer; font-family:'Work Sans',sans-serif;
}
.pagebar .navbtns button:hover:not(:disabled){ border-color: var(--brass); color:var(--brass); }
.pagebar .navbtns button:disabled{ opacity:0.3; cursor:default; }
.pagebar .navbtns button + button{ margin-left:6px; }

.weekdays{
  display:grid; grid-template-columns: repeat(7,1fr);
  font-size:11.5px; color: var(--foam-dim);
  padding: 0 2px 8px; border-bottom:1px solid var(--line); margin-bottom: 6px;
}
.weekdays div{text-align:center;}

.grid{ display:grid; grid-template-columns: repeat(7,1fr); gap:1px; background: var(--line); border:1px solid var(--line); }
.cell{ background: var(--panel); min-height: 92px; padding: 8px 8px 10px; cursor:pointer; position:relative; transition: background .15s ease; }
.cell:hover{ background: var(--panel-2); }
.cell.out-of-range{ opacity:0.28; cursor:default; }
.cell.out-of-range:hover{ background:var(--panel); }
.cell.selected{ outline: 1px solid var(--brass); outline-offset:-1px; background:var(--panel-2); }
.cell.today .num{ color: var(--brass); }
.cell .num{ font-family:'Fraunces', serif; font-size:16px; font-weight:500; }
.cell .bestline{ font-size:11px; color: var(--foam-dim); margin-top: 20px; line-height:1.35; }
.cell .bestline b{ color: var(--brass); font-weight:600; }
.gauge{ position:absolute; left:8px; right:8px; bottom:8px; height:4px; background: rgba(228,239,236,0.1); }
.gauge i{ display:block; height:100%; background: var(--kelp); }
.gauge.prime i{ background: var(--brass); }

.detail{ margin-top: 26px; border:1px solid var(--line); background: var(--panel); padding: 22px 24px; display:none; }
.detail.show{display:block;}
.detail h2{ font-family:'Fraunces', serif; font-weight:600; font-size:22px; margin:0 0 4px; }
.detail .sub{ color: var(--foam-dim); font-size:13px; margin-bottom: 18px;}
.cols{ display:grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.cols3{ display:grid; grid-template-columns: 1fr 1fr 1fr; gap: 26px; margin-top:22px; }
@media (max-width:640px){ .cols{grid-template-columns:1fr;} .cols3{grid-template-columns:1fr;} }
.fact{ display:flex; justify-content:space-between; padding:7px 0; border-bottom:1px dashed var(--line); font-size:13.5px;}
.fact span:first-child{ color: var(--foam-dim); }
.windows h3, .tides h3{ font-size:13px; text-transform:uppercase; letter-spacing:.04em; color:var(--foam-dim); font-weight:500; margin: 0 0 10px;}
.win-row{ display:flex; align-items:center; gap:10px; padding: 8px 0; border-bottom:1px solid var(--line); font-size:13.5px; flex-wrap:wrap; }
.win-row .tag{ font-size:10.5px; text-transform:uppercase; letter-spacing:.03em; padding: 2px 6px; border:1px solid var(--line-strong); color:var(--foam-dim); }
.win-row.prime .tag{ border-color: var(--brass); color: var(--brass); }
.win-row .time{ font-family:'Fraunces', serif; font-weight:500; min-width: 128px; }
.win-row .note{ font-size:12px; color:var(--foam-dim); }
.tide-row{ display:flex; justify-content:space-between; padding:7px 0; border-bottom:1px dashed var(--line); font-size:13.5px; }
.tide-row .h{ color: var(--brass); }
.tide-row .l{ color: var(--tide-low); }

details.about{ margin-top:34px; border-top:1px solid var(--line); padding-top: 16px; }
details.about summary{ cursor:pointer; color: var(--foam-dim); font-size:13px; }
details.about .body{ font-size:13.5px; color: var(--foam-dim); margin-top:12px; max-width:70ch;}
details.about .body p{ margin: 0 0 10px; }
details.about code{ background: var(--panel-2); padding:1px 5px; font-size:12px; }