/* Public signals: cards, waveform player, signal and operator pages */
.signal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.sig { position: relative; display: flex; flex-direction: column; gap: 14px; padding: 20px; min-width: 0;
       background: var(--bg2); border: 1px solid var(--border); transition: border-color .2s; }
.sig:hover { border-color: #2c2c2a; }
.sig-top { display: flex; align-items: flex-start; gap: 12px; }
.sig-title { font-size: 12px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
             overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sig-title a::after { content: ""; position: absolute; inset: 0; }   /* whole card opens the signal */
.sig-op { font-size: 10px; letter-spacing: .15em; color: var(--dim1); margin-top: 4px; position: relative; z-index: 1; }
.sig-op a:hover { color: var(--fg); }
.sig-meta { display: flex; justify-content: space-between; gap: 12px; font-size: 10px; letter-spacing: .12em;
            color: var(--dim2); text-transform: uppercase; }
.sig-meta span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.play { flex: none; width: 40px; height: 40px; border-radius: 50%; border: 1px solid #2c2c2a; background: var(--bg);
        color: var(--fg); display: grid; place-items: center; cursor: pointer; position: relative; z-index: 1;
        transition: border-color .2s, background .2s; }
.play:hover { border-color: var(--fg); }
.play svg { width: 12px; height: 12px; }
.play.on { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.play.loading { opacity: .5; }
.play-lg { width: 64px; height: 64px; }
.play-lg svg { width: 18px; height: 18px; }

.wave { display: block; width: 100%; height: 48px; position: relative; z-index: 1; cursor: pointer; }
.wave-lg { height: 120px; }

.empty { border: 1px solid var(--border); padding: 64px 24px; text-align: center; color: var(--dim1); font-size: 12px; }
.empty b { display: block; color: var(--fg); font-weight: 400; letter-spacing: .25em; font-size: 11px; margin-bottom: 8px; }
.more { display: flex; justify-content: center; margin-top: 24px; }
.btn { display: inline-flex; align-items: center; gap: 12px; height: 48px; padding: 0 22px; border: 1px solid var(--border);
       font: inherit; font-size: 10px; letter-spacing: .25em; text-transform: uppercase; background: none; color: var(--fg); cursor: pointer; }
.btn:hover { border-color: var(--dim2); }

/* Page header for signals / operator / signal pages */
.page-head { padding: 72px 0 48px; border-bottom: 1px solid var(--border); }
.page-head h1 { font-weight: 200; font-size: clamp(30px, 4.4vw, 52px); letter-spacing: .04em; line-height: 1.1; margin-top: 18px;
                overflow-wrap: anywhere; }
.page-head p { color: var(--dim1); margin-top: 16px; max-width: 620px; }
.page-body { padding: 48px 0 104px; }

/* Single signal */
.signal-hero { display: flex; align-items: center; gap: 24px; margin-top: 40px; }
.signal-hero .wave-lg { flex: 1; min-width: 0; }
.time { font-size: 11px; letter-spacing: .15em; color: var(--dim1); margin-top: 10px; text-align: right; font-variant-numeric: tabular-nums; }
.signal-cols { display: grid; grid-template-columns: 1.4fr 1fr; gap: 10px; }
.signal-cols .panel { border: 1px solid var(--border); padding: 28px; background: var(--bg2); }
.signal-cols .panel h3 { font-size: 10px; font-weight: 600; letter-spacing: .3em; margin-bottom: 16px; color: var(--dim1); }
.signal-cols .panel p { color: var(--fg); font-size: 13px; white-space: pre-wrap; overflow-wrap: anywhere; }
.meta-list { list-style: none; }
.meta-list li { padding: 10px 0; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 16px; font-size: 12px; }
.meta-list li:first-child { border-top: 0; padding-top: 0; }
.meta-list li span { color: var(--dim1); letter-spacing: .15em; font-size: 10px; text-transform: uppercase; flex: none; }
.meta-list li b { font-weight: 400; text-align: right; overflow-wrap: anywhere; }
.meta-list a { border-bottom: 1px solid var(--dim2); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.tag { font-size: 9px; letter-spacing: .2em; padding: 4px 8px; border: 1px solid var(--border); color: var(--dim1); }
.photo { width: 100%; display: block; margin-bottom: 10px; border: 1px solid var(--border); }
.fine { margin-top: 24px; font-size: 11px; color: var(--dim2); }
.fine a { color: var(--dim1); border-bottom: 1px solid var(--dim2); }

/* Operator */
.op-head { display: flex; align-items: center; gap: 24px; margin-top: 18px; }
.avatar { flex: none; width: 72px; height: 72px; border-radius: 50%; border: 1px solid var(--border); background: var(--bg3);
          display: grid; place-items: center; font-size: 22px; font-weight: 200; overflow: hidden; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.op-head h1 { margin-top: 0; }

@media (max-width: 960px) {
  .signal-grid { grid-template-columns: 1fr 1fr; }
  .signal-cols { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .signal-grid { grid-template-columns: 1fr; }
  .page-head { padding: 48px 0 32px; }
  .signal-hero { gap: 16px; }
  .wave-lg { height: 84px; }
  .play-lg { width: 52px; height: 52px; }
  .op-head { gap: 16px; }
  .avatar { width: 56px; height: 56px; }
}

/* Archive controls */
.signal-controls { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; margin-bottom: 24px; }
.signal-field { flex: 1 1 180px; min-width: 0; }
.signal-field label { display: block; margin-bottom: 8px; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim1); }
.signal-field input, .signal-field select { width: 100%; min-width: 0; height: 48px; padding: 0 12px; border: 1px solid var(--border);
  border-radius: 0; background: var(--bg2); color: var(--fg); font: inherit; font-size: 12px; color-scheme: dark; }
.signal-field input::placeholder { color: var(--dim1); }
.signal-controls :is(input, select, button):focus-visible { outline: 2px solid var(--fg); outline-offset: 3px; }
.filter-hint { flex-basis: 100%; color: var(--dim1); font-size: 11px; }
.signal-status { margin-bottom: 16px; color: var(--dim1); font-size: 11px; }
.signal-grid > .empty { grid-column: 1 / -1; }
.more .btn[hidden] { display: none; }
.more .btn:disabled { opacity: .5; cursor: wait; }
@media (max-width: 600px) {
  .signal-field { flex-basis: 100%; }
  .signal-controls > .btn { flex: 1; justify-content: center; }
}