/* ============================================================
   Signal — DRM audience forecast console
   Aesthetic: a broadcast / network-operations-center instrument.
   Dark, dense, calm. Numbers in mono, UI in Space Grotesk.
   Signature: the forecast "signal trace" + a segmented
   signal-strength reliability meter.
   ============================================================ */

:root {
  /* surfaces */
  --ink: #0E1117;
  --surface: #161B24;
  --elevated: #1E2530;
  --hairline: #28303C;
  --hairline-soft: #20272F;

  /* text */
  --text: #E6EDF3;
  --muted: #8B98A8;
  --faint: #5A6675;

  /* accents */
  --cyan: #36D1C4;
  --cyan-dim: #2A9E95;
  --amber: #E0A33E;
  --rose: #E8718E;

  /* DRM technology colors */
  --widevine: #5B8DEF;
  --playready: #9B7BE8;
  --fairplay: #E8718E;
  --vodrm: #E0A33E;

  --radius: 10px;
  --radius-sm: 7px;
  --gap: 18px;

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ui: "Space Grotesk", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--ui);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* subtle NOC grid backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--hairline-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--hairline-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}

h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; margin: 0; }
button { font-family: inherit; cursor: pointer; }
a { color: var(--cyan); text-decoration: none; }
[hidden] { display: none !important; }

.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.mono { font-family: var(--mono); }

/* ---------------- Buttons ---------------- */
.btn {
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  background: var(--elevated);
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:hover { background: #252D3A; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.btn-primary { background: var(--cyan); color: #06201D; border-color: var(--cyan); font-weight: 600; }
.btn-primary:hover { background: #45E0D2; }
.btn-outline { background: transparent; border-color: var(--hairline); }
.btn-outline:hover { border-color: var(--cyan-dim); background: rgba(54,209,196,.06); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover { background: var(--elevated); color: var(--text); }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }

/* ============================================================
   LOGIN
   ============================================================ */
.login-view {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-grid {
  width: min(960px, 100%);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.5);
}
.login-brand {
  padding: 44px 40px;
  background:
    radial-gradient(120% 80% at 0% 0%, rgba(54,209,196,.10), transparent 60%),
    var(--elevated);
  border-right: 1px solid var(--hairline);
}
.brand-mark { width: 220px; max-width: 100%; }
.brand-mark.sm { width: 30px; }
.brand-trace { width: 100%; height: auto; display: block; overflow: visible; }
.brand-trace polyline {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.brand-peak { fill: var(--cyan); }
.brand-name {
  font-size: 38px;
  margin: 18px 0 6px;
  letter-spacing: -0.02em;
}
.brand-tagline { color: var(--muted); max-width: 34ch; margin-bottom: 26px; }
.brand-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.brand-points li { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: var(--text); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.dot-cyan { background: var(--cyan); }
.dot-amber { background: var(--amber); }
.dot-widevine { background: var(--widevine); }

.login-panel { padding: 44px 40px; }
.panel-title { font-size: 22px; }
.panel-sub { color: var(--muted); margin: 4px 0 24px; font-size: 13.5px; }

.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; font-weight: 500; }
.field-hint { font-size: 11.5px; color: var(--faint); }
.field input, .field select {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 13.5px;
}
.field input:focus, .field select:focus, .operator-select:focus, .imp-select:focus {
  outline: none;
  border-color: var(--cyan-dim);
  box-shadow: 0 0 0 3px rgba(54,209,196,.12);
}
.field-row { display: grid; grid-template-columns: 1fr 1.4fr; gap: 12px; }
.field-inline { margin-bottom: 0; }

.form-error { color: var(--rose); font-size: 13px; margin: -4px 0 12px; }

.demo-creds { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--hairline); }
.demo-title { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); margin: 0 0 10px; }
.cred-chip {
  display: block; width: 100%; text-align: left;
  background: var(--ink); border: 1px solid var(--hairline);
  border-radius: var(--radius-sm); color: var(--text);
  padding: 8px 11px; font-family: var(--mono); font-size: 12px;
  margin-bottom: 7px; transition: border-color .15s;
}
.cred-chip:hover { border-color: var(--cyan-dim); }
.demo-hint { font-size: 11px; color: var(--faint); margin: 8px 0 0; }

/* ============================================================
   APP SHELL
   ============================================================ */
#view-app { position: relative; z-index: 1; min-height: 100vh; display: flex; flex-direction: column; }

.imp-banner {
  display: flex; align-items: center; gap: 10px;
  background: linear-gradient(90deg, rgba(224,163,62,.18), rgba(224,163,62,.06));
  border-bottom: 1px solid rgba(224,163,62,.4);
  color: #F2D9A8;
  padding: 8px 20px; font-size: 13px;
}
.imp-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 4px rgba(224,163,62,.2); }
.imp-banner strong { color: #FFE9C2; }
.imp-banner .btn { margin-left: auto; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--hairline);
  position: sticky; top: 0; z-index: 20;
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-title { font-weight: 700; font-size: 16px; letter-spacing: -0.01em; }
.topbar-sep { color: var(--faint); }
.operator-select, .imp-select {
  background: var(--ink);
  border: 1px solid var(--hairline);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 7px 11px;
  font-family: var(--ui);
  font-size: 13.5px;
  max-width: 260px;
}
.identity { display: flex; align-items: center; gap: 8px; }
.identity-email { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.badge {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em;
  background: var(--elevated); border: 1px solid var(--hairline);
  padding: 2px 7px; border-radius: 5px; color: var(--cyan);
}
.badge.admin { color: var(--amber); border-color: rgba(224,163,62,.4); }

/* ---------------- Layout grid ---------------- */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) 320px;
  gap: var(--gap);
  padding: var(--gap);
  align-items: start;
  max-width: 1640px;
  width: 100%;
  margin: 0 auto;
}
.col-config, .col-side { display: grid; gap: var(--gap); }
.col-main { display: grid; gap: var(--gap); min-width: 0; }

/* ---------------- Cards ---------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-bottom: 1px solid var(--hairline-soft);
}
.card-title { font-size: 13.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--text); }
.card-body { padding: 16px; }

.pill { font-size: 10.5px; padding: 2px 8px; border-radius: 20px; letter-spacing: .04em; }
.pill-warn { background: rgba(224,163,62,.16); color: var(--amber); border: 1px solid rgba(224,163,62,.35); }

/* ---------------- DRM mix ---------------- */
.drm-mix { display: grid; gap: 8px; margin-top: 4px; }
.mix-row { display: grid; grid-template-columns: 1fr 64px auto; align-items: center; gap: 8px; }
.mix-tag { font-size: 12.5px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.mix-tag::before { content: ""; width: 9px; height: 9px; border-radius: 2px; background: var(--c, var(--cyan)); }
.mix-input { width: 100%; background: var(--ink); border: 1px solid var(--hairline); border-radius: 6px; color: var(--text); padding: 6px 8px; font-family: var(--mono); font-size: 12.5px; text-align: right; }
.mix-input:focus { outline: none; border-color: var(--cyan-dim); }
.mix-unit { color: var(--faint); font-size: 12px; }
.mix-total { display: flex; justify-content: space-between; margin-top: 10px; font-size: 12px; color: var(--muted); font-family: var(--mono); border-top: 1px dashed var(--hairline); padding-top: 8px; }
.mix-total.bad #mix-total-val, .mix-total.bad span { color: var(--rose); }

.inline-msg { font-size: 12.5px; margin: 10px 0 0; padding: 8px 10px; border-radius: 6px; }
.inline-msg.ok { background: rgba(54,209,196,.1); color: var(--cyan); border: 1px solid rgba(54,209,196,.3); }
.inline-msg.err { background: rgba(232,113,142,.1); color: var(--rose); border: 1px solid rgba(232,113,142,.3); }

/* ---------------- Upload / datasets ---------------- */
.upload-row { display: flex; gap: 8px; margin: 12px 0; }
.file-btn { display: inline-flex; align-items: center; }
.datasets { display: grid; gap: 7px; margin-top: 4px; }
.ds-item { background: var(--ink); border: 1px solid var(--hairline-soft); border-radius: 6px; padding: 8px 10px; font-size: 11.5px; }
.ds-item .ds-name { font-family: var(--mono); color: var(--text); }
.ds-item .ds-meta { color: var(--faint); display: flex; gap: 10px; margin-top: 2px; }

/* ============================================================
   FORECAST CARD (signature)
   ============================================================ */
.card-forecast { overflow: hidden; }
.forecast-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 16px 18px 12px; }

.source-toggle { display: inline-flex; background: var(--ink); border: 1px solid var(--hairline); border-radius: 8px; padding: 3px; gap: 2px; flex-wrap: wrap; }
.source-toggle.compact .seg, .source-toggle.compact { font-size: 11.5px; }
.seg { background: transparent; border: none; color: var(--muted); padding: 6px 12px; border-radius: 6px; font-size: 12.5px; font-weight: 500; transition: background .15s, color .15s; }
.seg:hover { color: var(--text); }
.seg.is-active { background: var(--elevated); color: var(--cyan); box-shadow: inset 0 0 0 1px rgba(54,209,196,.25); }

.horizon-tabs { display: flex; gap: 4px; padding: 0 18px 14px; border-bottom: 1px solid var(--hairline-soft); flex-wrap: wrap; }
.tab { background: transparent; border: 1px solid transparent; color: var(--muted); padding: 7px 14px; border-radius: 7px; font-size: 13px; font-weight: 500; transition: all .15s; }
.tab:hover { color: var(--text); background: var(--elevated); }
.tab.is-active { color: var(--ink); background: var(--cyan); font-weight: 600; }

.peak-strip {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 18px; background: linear-gradient(180deg, var(--elevated), var(--surface));
  border-bottom: 1px solid var(--hairline-soft);
}
.peak-main { display: flex; flex-direction: column; gap: 2px; }
.peak-label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.peak-value { font-family: var(--mono); font-size: 34px; font-weight: 600; color: var(--text); line-height: 1.05; letter-spacing: -0.02em; }
.peak-when { font-size: 12px; color: var(--cyan); font-family: var(--mono); }

.reliability { display: flex; flex-direction: column; align-items: flex-end; gap: 5px; min-width: 150px; }
.rel-label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.rel-meter { display: flex; gap: 3px; align-items: flex-end; height: 26px; }
.rel-bar { width: 7px; border-radius: 2px; background: var(--hairline); transition: background .3s, height .3s; }
.rel-score { font-family: var(--mono); font-size: 18px; font-weight: 600; }
.rel-score .rel-unit { font-size: 11px; color: var(--faint); }

.chart-wrap { position: relative; padding: 16px 18px; }
.chart-wrap-sm { padding: 8px 8px 4px; }
.chart-loading { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 8px; background: rgba(22,27,36,.6); color: var(--muted); font-size: 13px; font-family: var(--mono); }
.spin { width: 14px; height: 14px; border: 2px solid var(--hairline); border-top-color: var(--cyan); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.forecast-foot { padding: 4px 18px 16px; }
.drm-legend { display: flex; gap: 16px; flex-wrap: wrap; }
.leg-item { display: flex; align-items: center; gap: 7px; font-size: 12px; font-family: var(--mono); color: var(--muted); }
.leg-swatch { width: 10px; height: 10px; border-radius: 2px; }
.leg-val { color: var(--text); }

/* ---------------- Compare ---------------- */
.compare-controls { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.compare-controls .field { margin-bottom: 0; }

/* ============================================================
   PROVISIONING
   ============================================================ */
.margin-row { display: flex; align-items: center; gap: 12px; }
.margin-row input[type=range] { flex: 1; accent-color: var(--cyan); }
.margin-val { font-family: var(--mono); font-size: 14px; color: var(--cyan); min-width: 52px; text-align: right; }
.provision-total { display: flex; flex-direction: column; gap: 2px; margin: 14px 0; padding: 14px; background: var(--ink); border: 1px solid var(--hairline); border-radius: 8px; }
.provision-value { font-family: var(--mono); font-size: 28px; font-weight: 600; color: var(--cyan); }
.provision-drm { display: grid; gap: 8px; }
.prov-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px; font-size: 12.5px; }
.prov-tag { display: flex; align-items: center; gap: 8px; color: var(--text); }
.prov-tag::before { content: ""; width: 9px; height: 9px; border-radius: 2px; background: var(--c, var(--cyan)); }
.prov-num { font-family: var(--mono); color: var(--text); }
.prov-bar-track { grid-column: 1 / -1; height: 4px; background: var(--hairline); border-radius: 3px; overflow: hidden; }
.prov-bar-fill { height: 100%; background: var(--c, var(--cyan)); border-radius: 3px; }
.provision-note { margin: 14px 0 0; }

/* ---------------- EPG ---------------- */
.epg-list { display: grid; gap: 7px; margin-top: 6px; max-height: 280px; overflow-y: auto; }
.epg-item { background: var(--ink); border: 1px solid var(--hairline-soft); border-left: 2px solid var(--rose); border-radius: 6px; padding: 8px 10px; }
.epg-title { font-size: 12.5px; color: var(--text); }
.epg-meta { font-size: 11px; color: var(--faint); font-family: var(--mono); display: flex; gap: 8px; margin-top: 2px; flex-wrap: wrap; }
.epg-chan { color: var(--cyan); }

/* ---------------- Drivers ---------------- */
.drivers-list { display: grid; gap: 8px; }
.driver-item { display: flex; align-items: center; gap: 10px; background: var(--ink); border: 1px solid var(--hairline-soft); border-radius: 6px; padding: 8px 10px; }
.driver-mult { font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--amber); flex: none; min-width: 42px; }
.driver-text { font-size: 12px; }
.driver-text .d-label { color: var(--text); display: block; }
.driver-text .d-when { color: var(--faint); font-family: var(--mono); font-size: 11px; }

.empty { color: var(--faint); font-size: 12.5px; font-style: italic; padding: 6px 0; }

/* ---------------- Footer ---------------- */
.appfoot {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px; border-top: 1px solid var(--hairline);
  color: var(--faint); font-size: 12px; margin-top: auto;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1200px) {
  .layout { grid-template-columns: 1fr; max-width: 760px; }
  .col-config, .col-side { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .login-grid { grid-template-columns: 1fr; }
  .login-brand { display: none; }
  .topbar { flex-wrap: wrap; gap: 10px; }
  .operator-select { max-width: 180px; }
  .peak-strip { flex-direction: column; align-items: flex-start; }
  .reliability { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}