:root {
  --bg: #F7F5F0;
  --ink: #2A2925;
  --cobalt: #4B6B8C;
  --terracotta: #C67A6A;
  --green-gray: #7A8B7E;
  --graphite: #D4CFC4;
  --max: 1200px;
  --read: 730px;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --serif: Georgia, "Times New Roman", Times, serif;
  --mono: ui-monospace, Consolas, "Courier New", monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.6;
  background-color: var(--bg);
  background-image: url("/assets/svg/planner.svg");
  background-size: 60px 60px;
}
a { color: var(--cobalt); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-family: var(--sans); font-weight: 600; line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: 2.4rem; margin: 0 0 0.6rem; }
h2 { font-size: 1.7rem; margin: 0 0 0.65rem; }
h3 { font-size: 1.15rem; margin: 0 0 0.4rem; }
p { margin: 0 0 0.85rem; }
.kicker {
  margin: 0 0 0.4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-gray);
}
.page { max-width: var(--max); margin: 0 auto; padding: 22px 18px 60px; }
.read { max-width: var(--read); }
.mast-wrap {
  border-bottom: 1px solid var(--graphite);
  background: rgba(247,245,240,0.96);
  position: sticky;
  top: 0;
  z-index: 10;
}
.mast {
  height: 60px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { color: var(--ink); font-family: var(--sans); font-size: 1.08rem; font-weight: 600; }
.nav { display: flex; gap: 18px; }
.nav a { color: var(--ink); font-family: var(--sans); font-size: 0.92rem; }
.nav a[aria-current="page"] { color: var(--cobalt); }
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 5px 9px;
  cursor: pointer;
}
.block { margin: 48px 0; }
.board {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px;
  background: rgba(247,245,240,0.94);
  border-top: 3px solid var(--cobalt);
  padding: 18px 16px;
}
.board-left { grid-column: span 5; }
.board-right { grid-column: span 7; }
.filter-group { margin: 0 0 18px; }
.filter-group label { display: block; margin: 0 0 6px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--green-gray); }
.filter-options { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-options input[type="radio"] { position: absolute; opacity: 0; }
.filter-options label {
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 7px 12px;
  border: 1px solid var(--graphite);
  background: transparent;
  cursor: pointer;
  margin: 0;
  text-transform: none;
  letter-spacing: normal;
  color: var(--ink);
}
.filter-options input:checked + label { background: var(--cobalt); color: #fff; border-color: var(--cobalt); }
button, .btn {
  font-family: var(--sans);
  background: var(--cobalt);
  color: #fff;
  border: none;
  padding: 10px 16px;
  cursor: pointer;
  font-size: 0.95rem;
}
button:hover, .btn:hover { background: #3e5a75; }
.recs { margin-top: 20px; }
.rec {
  border-top: 1px solid var(--graphite);
  padding: 14px 0;
}
.rec h3 { font-size: 1.1rem; text-transform: uppercase; letter-spacing: 0.02em; }
.rec-meta { font-family: var(--mono); font-size: 0.82rem; color: var(--green-gray); margin: 8px 0; }
.rec-meta span { margin-right: 14px; }
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.quick-item {
  border-top: 1px solid var(--graphite);
  padding: 10px 0;
}
.quick-item .num { font-family: var(--mono); color: var(--terracotta); font-size: 1.3rem; margin: 0 0 4px; }
.ladder { border-left: 3px solid var(--cobalt); padding-left: 20px; }
.ladder-step { margin: 0 0 32px; }
.ladder-step h3 { font-family: var(--mono); font-size: 1.4rem; letter-spacing: 0.04em; color: var(--cobalt); }
.ledger { border-collapse: collapse; width: 100%; margin: 20px 0; }
.ledger th, .ledger td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--graphite); }
.ledger th { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--green-gray); }
.ledger td { font-family: var(--sans); font-size: 0.95rem; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 0; position: relative; }
.split-left, .split-right { padding: 24px 20px; }
.split-left { background: rgba(198,122,106,0.08); }
.split-right { background: rgba(75,107,140,0.08); }
.split:before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--graphite);
}
.split h2 { font-size: 1.5rem; }
.split ul { list-style: none; padding: 0; margin: 0; }
.split li { border-top: 1px solid var(--graphite); padding: 10px 0; }
.bands { margin: 30px 0; }
.band {
  border: 1px solid var(--graphite);
  padding: 20px 18px;
  margin: 0 0 18px;
  background: rgba(247,245,240,0.92);
}
.band h3 { text-transform: uppercase; letter-spacing: 0.04em; }
.make { display: grid; grid-template-columns: 7fr 5fr; gap: 28px; }
.mat-list { border-left: 2px solid var(--terracotta); padding-left: 16px; }
.mat-list ul { list-style: none; padding: 0; margin: 0; }
.mat-list li { padding: 4px 0; font-family: var(--sans); }
.weekend { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.w-item { border: 1px solid var(--graphite); padding: 16px 14px; background: rgba(247,245,240,0.92); }
.w-item h3 { font-size: 1.05rem; }
.w1 { grid-column: span 7; }
.w2 { grid-column: span 5; }
.w3 { grid-column: span 4; }
.w4 { grid-column: span 8; }
.w5 { grid-column: span 5; }
.w6 { grid-column: span 7; }
.lib { list-style: none; padding: 0; margin: 0; }
.lib li { border-top: 1px solid var(--graphite); padding: 11px 0; }
.lib a { font-family: var(--sans); font-size: 1.12rem; color: var(--ink); font-weight: 500; }
.activity-item {
  border-top: 1px solid var(--graphite);
  padding: 16px 0;
}
.activity-item h3 { font-size: 1.08rem; }
.activity-meta { font-family: var(--mono); font-size: 0.8rem; color: var(--green-gray); margin: 8px 0; }
.activity-meta span { margin-right: 14px; }
.foot { border-top: 1px solid var(--graphite); padding: 18px 18px 36px; }
.foot-in { max-width: var(--max); margin: 0 auto; }
.foot nav { display: flex; flex-wrap: wrap; gap: 10px 16px; margin: 0 0 12px; }
.foot a { color: var(--ink); font-family: var(--sans); font-size: 0.9rem; }
@media (max-width: 760px) {
  .nav-toggle { display: inline-block; }
  .nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 10px;
    right: 10px;
    flex-direction: column;
    background: var(--bg);
    border: 1px solid var(--graphite);
    padding: 12px;
    z-index: 20;
  }
  .nav.is-open { display: flex; }
  .board, .split, .make, .weekend { display: block; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .split:before { display: none; }
  .split-left, .split-right { margin: 0 0 10px; }
  h1 { font-size: 1.9rem; }
}