/* K6RVC operating sheet — engineer-friendly mono on log-paper green */

:root {
  --paper: #eef2e6;
  --ink: #16261a;
  --ink-soft: #3a4a3e;
  --rule: #98a890;
  --rule-soft: #c2cdb8;
  --accent: #7a1414;
  --phos: #0a3a18;
  --phos-bg: #082014;
  --phos-fg: #5fe27a;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.45;
}

body {
  background-image:
    repeating-linear-gradient(0deg, transparent 0 22px, rgba(20,40,30,0.06) 22px 23px),
    repeating-linear-gradient(90deg, transparent 0 110px, rgba(140,30,30,0.04) 110px 111px);
  padding: 0 0 60px;
}

/* HEADER — phosphor strip with the logbook index */
.logbook-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--phos-bg);
  color: var(--phos-fg);
  border-bottom: 2px solid #0a4520;
  padding: 10px 18px 6px;
  text-shadow: 0 0 4px rgba(95, 226, 122, 0.45);
}

.header-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr 1.5fr;
  gap: 18px;
  align-items: start;
}

.call-block .call {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 4px;
}
.call-block .call-sub { font-size: 11px; opacity: 0.85; letter-spacing: 1px; }
.call-block abbr { text-decoration: none; border-bottom: 1px dotted currentColor; }

.session-block .label,
.logbook-index .label {
  font-size: 10px;
  letter-spacing: 2px;
  opacity: 0.65;
  margin-top: 2px;
}
.session-block .value { font-size: 12px; margin-bottom: 2px; }

.logbook-index ul {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
}
.logbook-index li { display: inline-flex; }
.logbook-index a {
  color: var(--phos-fg);
  text-decoration: none;
  padding: 3px 8px;
  border: 1px solid rgba(95, 226, 122, 0.4);
  border-radius: 2px;
  font-size: 11px;
  letter-spacing: 1px;
}
.logbook-index a:hover,
.logbook-index a:focus {
  background: rgba(95, 226, 122, 0.15);
  outline: none;
}
.logbook-index .this-sheet {
  background: rgba(95, 226, 122, 0.18);
  border-color: var(--phos-fg);
  font-weight: 700;
}
.logbook-index .prev-sheet::before { content: ""; }
.logbook-index .all-sheets { border-style: dashed; }

.band-conditions {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 10px;
  letter-spacing: 1.5px;
  opacity: 0.75;
  border-top: 1px dashed rgba(95, 226, 122, 0.25);
  padding-top: 6px;
}
.band-conditions span::before { content: "\25C6  "; opacity: 0.5; }

/* MAIN */
main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 22px 0;
}

h1, h2 {
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 2px solid var(--ink);
  padding-bottom: 4px;
  margin: 28px 0 14px;
}
h1 { font-size: 18px; }
h2 { font-size: 14px; }
h1 .date { color: var(--accent); }

.sheet { margin-top: 14px; }

.masthead {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1.5px solid var(--ink);
  background: rgba(255,255,255,0.55);
}
.mast-cell {
  padding: 10px 12px;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}
.mast-cell:nth-child(2n) { border-right: none; }
.mast-cell:last-child { border-bottom: none; grid-column: 1 / -1; }
.mast-cell:nth-last-child(2) { border-bottom: 1px solid var(--rule); }

.mast-label {
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--ink-soft);
  margin-bottom: 3px;
}
.mast-value { font-size: 12px; }
.mast-value a { color: var(--accent); }

.note {
  font-size: 11px;
  color: var(--ink-soft);
  margin: 10px 2px 0;
  font-style: italic;
}

/* QSO LOG */
.qso-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255,255,255,0.55);
  border: 1.5px solid var(--ink);
  font-size: 11.5px;
}
.qso-table th,
.qso-table td {
  padding: 4px 8px;
  text-align: left;
  border-bottom: 1px solid var(--rule-soft);
  border-right: 1px solid var(--rule-soft);
  vertical-align: top;
}
.qso-table th {
  background: #d8dfcd;
  font-size: 9.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-bottom: 1.5px solid var(--ink);
  position: sticky;
  top: 92px;
  z-index: 5;
}
.qso-table tbody tr:nth-child(odd) { background: rgba(120, 150, 110, 0.06); }
.qso-table tbody tr:hover { background: rgba(255, 220, 120, 0.35); }
.c-time { white-space: nowrap; color: var(--ink-soft); width: 56px; }
.c-freq { white-space: nowrap; width: 64px; }
.c-mode { width: 48px; text-transform: uppercase; }
.c-call { white-space: nowrap; font-weight: 700; }
.c-call a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--accent); }
.c-call a:hover { background: #ffe7a3; }
.c-rst { font-family: var(--mono); width: 50px; color: var(--phos); font-weight: 700; }
.c-notes { color: var(--ink-soft); }

.log-foot {
  font-size: 10.5px;
  color: var(--ink-soft);
  margin: 8px 2px 0;
}

/* ROSTER */
.roster-intro {
  font-size: 11.5px;
  color: var(--ink-soft);
  margin: 0 2px 12px;
}
.roster-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: opnum;
}
.roster-list > li {
  border: 1px solid var(--ink);
  background: #f6f8ef;
  padding: 12px 14px;
  position: relative;
  counter-increment: opnum;
}
.roster-list > li::before {
  content: "OP " counter(opnum, decimal-leading-zero);
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--accent);
}
.op-name {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
}
.op-title {
  font-size: 10.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 2px 0 8px;
}
.op-bio { font-size: 11.5px; }

/* PROPAGATION */
.prop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.prop-grid > div {
  border-left: 3px solid var(--ink);
  padding: 4px 12px;
}
.prop-grid .small {
  font-size: 10.5px;
  color: var(--ink-soft);
  margin-top: 4px;
}
.prop-grid a { color: var(--accent); }

/* SKED */
.sked-card {
  border: 1.5px dashed var(--accent);
  padding: 14px 16px;
  background: rgba(122, 20, 20, 0.04);
}
.sked-card a { color: var(--accent); }

/* COLOPHON */
.colophon {
  margin-top: 36px;
  border-top: 2px solid var(--ink);
  padding-top: 12px;
  font-size: 11.5px;
}
.colophon a { color: var(--accent); }
.sig {
  margin: 12px 0 0;
  font-size: 11px;
  color: var(--ink-soft);
  white-space: pre-wrap;
  letter-spacing: 1px;
}

/* TICKER ANIMATION — band conditions blink the open band */
@keyframes pulse-open {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; text-shadow: 0 0 8px rgba(95, 226, 122, 0.7); }
}
.band-conditions span:nth-child(5) {
  color: #c9ffd0;
  animation: pulse-open 2.2s ease-in-out infinite;
}

/* Responsive — collapse the header grid on narrow screens */
@media (max-width: 760px) {
  .header-grid { grid-template-columns: 1fr; gap: 10px; }
  .qso-table th { top: 0; position: static; }
  .masthead { grid-template-columns: 1fr; }
  .mast-cell { border-right: none; }
  .qso-table { font-size: 10.5px; }
}