/* DoE web UI — dark theme */

:root {
  --bg: #0b101b;
  --card: #131a2b;
  --card-2: #0e1524;
  --border: #232e47;
  --text: #dbe4f0;
  --muted: #8fa1bd;
  --accent: #5ac8fa;
  --good: #7bd88f;
  --warn: #ffd166;
  --bad: #ff7a90;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 85% -10%, #16233d 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  font: 14px/1.5 ui-sans-serif, system-ui, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

body.busy button, body.busy .btn-link { pointer-events: none; opacity: .55; }

/* ------------------------------------------------------------- header --- */
header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px;
  background: rgba(11, 16, 27, .85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.brand { font-size: 17px; font-weight: 700; letter-spacing: .3px; }
.brand .sub { font-size: 12px; font-weight: 400; color: var(--muted); margin-left: 8px; }
.header-right { display: flex; gap: 8px; align-items: center; }

.pill {
  padding: 4px 12px; border-radius: 999px; font-size: 12px;
  background: var(--card); border: 1px solid var(--border);
}
.pill.accent { color: var(--warn); border-color: #4a4023; background: #201b0e; }
.pill.subtle { color: var(--muted); }
.busy-pill { color: var(--accent); border-color: #1e3a4f; background: #0e1e2c; }
.busy-pill::before { content: "◌ "; animation: spin 1s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------------- layout --- */
main {
  max-width: 1600px; margin: 0 auto; padding: 16px 20px 4px;
  display: grid; gap: 16px;
}
#main-view { grid-template-columns: 410px minmax(0, 1fr); align-items: start; }
.col-left, .col-right { display: grid; gap: 16px; min-width: 0; }
.full { grid-column: 1 / -1; }
#setup-view { max-width: 860px; }

@media (max-width: 1080px) {
  #main-view { grid-template-columns: 1fr; }
}

footer {
  max-width: 1600px; margin: 0 auto; padding: 8px 20px 24px;
  color: var(--muted); font-size: 12px;
}
footer code { background: var(--card); padding: 1px 5px; border-radius: 5px; }

/* -------------------------------------------------------------- cards --- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, .25);
  min-width: 0;
}
.card h2 { margin: 0 0 6px; }
.card h3 { margin: 0 0 10px; font-size: 15px; }
.card h4 { margin: 14px 0 6px; font-size: 13px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.card-head h3 { margin: 0; }
.wizard h3 { margin-top: 22px; }
.muted { color: var(--muted); font-weight: 400; font-size: .92em; }
.hint { color: var(--muted); font-size: 12.5px; margin: 6px 0; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

details.card summary {
  cursor: pointer; font-weight: 600; font-size: 15px;
  list-style: none; user-select: none;
}
details.card summary::before { content: "▸ "; color: var(--muted); }
details.card[open] summary::before { content: "▾ "; }

/* ------------------------------------------------------ inputs/buttons --- */
input, select {
  background: var(--card-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 7px 10px; font: inherit; min-width: 0;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }
label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); }
label.mini { font-size: 11.5px; }
label.mini input { padding: 6px 8px; width: 110px; }

button {
  font: inherit; cursor: pointer; border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--card-2); color: var(--text);
  padding: 7px 14px;
  transition: filter .15s, border-color .15s;
}
button:hover { border-color: var(--accent); }
button.primary {
  background: linear-gradient(180deg, #2f9edb, #1f7fb8);
  border-color: #2f9edb; color: #fff; font-weight: 600;
}
button.primary:hover { filter: brightness(1.12); }
button.big { padding: 10px 26px; margin-top: 18px; font-size: 15px; }
button.ghost, .btn-link {
  background: transparent; color: var(--accent);
  border: 1px dashed var(--border); font-size: 13px;
  text-decoration: none; padding: 6px 12px; border-radius: 9px;
}
button.del {
  border: none; background: transparent; color: var(--bad);
  font-size: 15px; padding: 2px 8px;
}
button.del:hover { filter: brightness(1.3); }

.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 9px; overflow: hidden; }
.seg button { border: none; border-radius: 0; padding: 6px 13px; background: var(--card-2); }
.seg button.active { background: var(--accent); color: #06222f; font-weight: 700; }

/* ------------------------------------------------------------ proposals --- */
.proposal {
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  border-radius: 10px; background: var(--card-2);
  padding: 10px 12px; margin: 10px 0;
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0; }
.chip {
  background: #1a2338; border: 1px solid var(--border);
  padding: 3px 9px; border-radius: 999px; font-size: 12px; white-space: nowrap;
}
.chip b { color: var(--muted); font-weight: 600; margin-right: 4px; }
.chip.cost { color: var(--warn); border-color: #4a4023; background: #201b0e; }
.chip.resp { background: #12291c; border-color: #234a31; }
.chip.resp.target { border-color: var(--good); }
.chip.resp b { color: #86b796; }
.entry { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; margin-top: 8px; }
.entry.wrap { margin-top: 4px; }
.tag {
  font-size: 10.5px; background: #1a2338; color: var(--muted);
  border-radius: 6px; padding: 2px 6px; vertical-align: 2px; margin-left: 6px;
}
.cost-line { color: var(--warn); font-size: 12.5px; margin: 6px 0 2px; }

/* ----------------------------------------------------------------- tabs --- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 12px; }
.tabs button {
  background: transparent; border: none; border-bottom: 2px solid transparent;
  border-radius: 0; color: var(--muted); padding: 8px 14px; font-weight: 600;
}
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }
.fit-ctl {
  margin-left: auto; display: flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: 12px; padding-bottom: 4px;
}
.fit-ctl select, .fit-ctl input { padding: 4px 6px; font-size: 12px; }
.fit-ctl input { width: 44px; text-align: center; }
.tabpane { display: none; }
.tabpane.active { display: block; }
.response-picker { margin-bottom: 4px; }
.response-picker button { font-size: 12px; padding: 4px 12px; border-radius: 999px; }
.response-picker button.active { border-color: var(--accent); color: var(--accent); }

.plot { width: 100%; min-height: 120px; }
.placeholder {
  color: var(--muted); text-align: center; padding: 60px 20px;
  border: 1px dashed var(--border); border-radius: 10px; font-size: 13px;
}
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- tables --- */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { padding: 7px 10px; text-align: right; border-bottom: 1px solid var(--border); }
th:first-child, td:first-child { text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: 12px; }
th.resp, td.resp { color: #a9d8b6; }
td.resp.target { font-weight: 600; }
tr.best td { background: rgba(123, 216, 143, .07); }
tr.best td:first-child { color: var(--good); font-weight: 700; }

.edit-table { width: 100%; margin-bottom: 8px; }
.edit-table th { text-align: left; }
.edit-table td { text-align: left; padding: 4px 6px; border-bottom: none; }
.edit-table input { width: 100%; }
.edit-table td.num { width: 110px; }
.response-row { display: flex; gap: 8px; align-items: center; margin: 6px 0; }
.response-row input { flex: 1; max-width: 320px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 18px; margin: 10px 0; }
@media (max-width: 640px) { .grid2 { grid-template-columns: 1fr; } }

/* -------------------------------------------------------- session manager --- */
button.session-btn { cursor: pointer; padding: 4px 12px; font-size: 12px; }
button.session-btn:hover { border-color: var(--accent); color: var(--text); }

.modal {
  position: fixed; inset: 0; z-index: 40;
  background: rgba(5, 8, 14, .65); backdrop-filter: blur(3px);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 56px 16px 24px; overflow-y: auto;
}
.modal-card { width: 100%; max-width: 880px; }

table.sessions th, table.sessions td { text-align: left; }
table.sessions td.acts { text-align: right; white-space: nowrap; }
table.sessions td.desc { color: var(--muted); max-width: 280px; overflow-wrap: anywhere; }
.mini-act { font-size: 12px; padding: 3px 10px; border-radius: 7px; margin-left: 4px; }
.mini-act.danger { color: var(--bad); }
.mini-act:disabled { opacity: .35; pointer-events: none; }
.entry label.grow { flex: 1; min-width: 220px; }
.entry label.grow input { width: 100%; }

/* ----------------------------------------------------------------- toast --- */
#toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px);
  background: #16324a; border: 1px solid var(--accent); color: var(--text);
  padding: 10px 18px; border-radius: 10px; font-size: 13.5px;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
  max-width: 80vw; z-index: 50;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
#toast.err { background: #3a1622; border-color: var(--bad); }

.hidden { display: none !important; }