/* Fax Exchange — management console
   Design language: thermal-paper content, dark exchange panel, LED status,
   fax-transmission headers. System fonts only; no external requests. */

:root {
  --ink:      #1a1d21;
  --ink-soft: #565b62;
  --paper:    #f0efe9;   /* thermal paper */
  --paper-2:  #faf9f5;   /* card face */
  --line:     #d4d2c8;
  --panel:    #171b22;   /* exchange cabinet */
  --panel-2:  #212733;
  --panel-tx: #aeb6c4;
  --amber:    #e39b18;   /* line LED / primary */
  --amber-dk: #9c690a;
  --green:    #2f9e5f;
  --red:      #c9463d;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 3px;
}

* { box-sizing: border-box; }
html { font-size: 15px; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}
body.app { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }

a { color: var(--ink); }
code { font-family: var(--mono); font-size: .88em; }
h1, h2 { font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: 1.45rem; margin: 0; }
h2 { font-size: .8rem; margin: 0 0 .8rem; text-transform: uppercase; letter-spacing: .12em;
     font-family: var(--mono); color: var(--ink-soft); }
.muted { color: var(--ink-soft); }
.right { text-align: right; }

/* ------------------------------------------------------- exchange panel */
.panel {
  background: var(--panel);
  color: var(--panel-tx);
  display: flex; flex-direction: column;
  padding: 1.1rem .9rem;
  border-right: 3px solid var(--amber);
}
.panel-brand {
  display: flex; gap: .6rem; align-items: center;
  font-family: var(--mono);
  padding-bottom: 1rem; margin-bottom: 1rem;
  border-bottom: 1px dashed #39404e;
}
.panel-brand strong { color: #fff; letter-spacing: .08em; display: block; font-size: .82rem; }
.panel-brand small { font-size: .66rem; letter-spacing: .04em; }
.panel nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.panel nav a {
  color: var(--panel-tx); text-decoration: none;
  font-family: var(--mono); font-size: .8rem; letter-spacing: .05em;
  padding: .5rem .6rem; border-radius: var(--radius);
}
.panel nav a:hover { background: var(--panel-2); color: #fff; }
.panel nav a.active { background: var(--panel-2); color: var(--amber); }
.panel nav a.sub { font-size: .74rem; margin-left: .5rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.panel-foot {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .08em;
  border-top: 1px dashed #39404e; padding-top: .9rem;
  display: flex; align-items: center; gap: .45rem;
}
.panel-foot a { color: var(--panel-tx); margin-left: auto; }
.panel-foot a:hover { color: #fff; }

/* LEDs */
.led {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  background: #4a4f58; vertical-align: baseline; flex: none;
}
.led-on  { background: var(--green); box-shadow: 0 0 6px 1px rgba(47,158,95,.55); }
.led-off { background: var(--red); }
.led-dim { background: var(--amber); box-shadow: 0 0 5px 1px rgba(227,155,24,.4);
           animation: pulse 3.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { .led-dim { animation: none; } }

/* --------------------------------------------------------------- main */
main { padding: 1.4rem 2rem 3.5rem; max-width: 1080px; width: 100%; }

/* Signature element: fax transmission header */
.faxhead {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em;
  color: var(--ink-soft);
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  border-bottom: 2px dashed var(--ink);
  padding-bottom: .45rem; margin-bottom: 1.4rem;
  text-transform: uppercase;
}

.page-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 1.2rem;
}
.page-head .actions { display: flex; gap: .5rem; }

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 1px 0 rgba(26,29,33,.05);
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.card-head h2 { margin-bottom: .2rem; }

/* --------------------------------------------------------------- games */
.game-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: .9rem; margin-bottom: 1.2rem; }
.game-card {
  display: block; text-decoration: none;
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem 1.1rem;
  border-top: 3px solid var(--ink);
}
.game-card:hover { border-top-color: var(--amber); box-shadow: 0 2px 8px rgba(26,29,33,.1); }
.game-card h2 { font-family: var(--sans); text-transform: none; letter-spacing: 0;
                color: var(--ink); font-size: 1.05rem; margin-bottom: .25rem; }
.game-card p { margin: .1rem 0 .6rem; font-size: .85rem; }
.stat-row { display: flex; gap: 1.2rem; margin: .6rem 0 0; }
.stat-row dt { font-family: var(--mono); font-size: .62rem; text-transform: uppercase;
               letter-spacing: .1em; color: var(--ink-soft); }
.stat-row dd { margin: 0; font-size: .85rem; font-weight: 600; }

/* --------------------------------------------------------------- forms */
label { display: block; font-size: .74rem; font-family: var(--mono); letter-spacing: .06em;
        text-transform: uppercase; color: var(--ink-soft); margin-bottom: .25rem; }
input, select {
  font: inherit; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: .42rem .55rem; width: 100%;
}
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--amber); outline-offset: 1px;
}
.form-row { display: flex; gap: .9rem; align-items: flex-end; flex-wrap: wrap; }
.field { min-width: 130px; }
.field.grow { flex: 1; } .field.grow-2 { flex: 2; }
.field.check { display: flex; align-items: center; gap: .45rem;
               font-family: var(--mono); font-size: .78rem; text-transform: uppercase;
               letter-spacing: .06em; color: var(--ink); padding-bottom: .5rem; }
.field.check input { width: auto; }
.form-foot { display: flex; gap: .6rem; margin-top: .4rem; }

.dtmf, .dtmf-input { font-family: var(--mono); letter-spacing: .18em; }
.dtmf {
  display: inline-block; background: var(--ink); color: var(--paper);
  padding: .12rem .5rem; border-radius: var(--radius); font-size: .85rem; font-weight: 600;
}
.dtmf-input { max-width: 160px; }

/* -------------------------------------------------------------- buttons */
.btn {
  display: inline-block; cursor: pointer; text-decoration: none; text-align: center;
  font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink); background: var(--paper-2);
  border: 1.5px solid var(--ink); border-radius: var(--radius);
  padding: .45rem .85rem;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-primary { background: var(--ink); color: var(--amber); border-color: var(--ink); }
.btn-primary:hover { background: var(--amber-dk); border-color: var(--amber-dk); color: #fff; }
.btn-danger { border-color: var(--red); color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-small { padding: .25rem .55rem; font-size: .66rem; }
.btn[disabled], .btn:disabled { opacity: .45; cursor: not-allowed; pointer-events: none; }
button.btn { font-family: var(--mono); }

/* --------------------------------------------------------------- tables */
.table { width: 100%; border-collapse: collapse; margin-top: .6rem; }
.table th {
  text-align: left; font-family: var(--mono); font-size: .64rem;
  text-transform: uppercase; letter-spacing: .1em; color: var(--ink-soft);
  border-bottom: 2px solid var(--ink); padding: .35rem .5rem;
}
.table th.right { text-align: right; }
.table td { padding: .55rem .5rem; border-bottom: 1px dashed var(--line); vertical-align: middle; }
.table .actions { display: flex; gap: .35rem; justify-content: flex-end; align-items: center; flex-wrap: wrap; }
.table .actions form { display: inline; }
.row-off td { opacity: .55; }
.inline-rename { display: inline-flex; gap: .3rem; }
.inline-rename input { width: auto; font-family: var(--mono); font-size: .78rem; padding: .25rem .4rem; }
audio { display: block; height: 26px; max-width: 240px; margin-top: .3rem; }

.tag {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--line); border-radius: 999px; padding: .1rem .5rem; color: var(--ink-soft);
}
.tag-on  { border-color: var(--green); color: var(--green); }
.tag-off { border-color: var(--red);   color: var(--red); }

/* ----------------------------------------------------- flashes / states */
.flash {
  font-family: var(--mono); font-size: .78rem;
  border: 1px solid; border-left-width: 4px; border-radius: var(--radius);
  padding: .55rem .8rem; margin-bottom: .8rem; background: var(--paper-2);
}
.flash-ok    { border-color: var(--green); }
.flash-error { border-color: var(--red); }
.flash-warn  { border-color: var(--amber); }

.empty { color: var(--ink-soft); font-size: .9rem; border: 1px dashed var(--line);
         border-radius: var(--radius); padding: 1rem 1.1rem; background: transparent; }

.preflight { border-radius: var(--radius); padding: .7rem .9rem; margin: .8rem 0;
             font-size: .85rem; display: flex; gap: .5rem; align-items: baseline; flex-wrap: wrap; }
.preflight-ok  { border: 1px solid var(--green); }
.preflight-bad { border: 1px solid var(--red); display: block; }
.preflight-bad ul { margin: .4rem 0 0 1.1rem; padding: 0; }
.preflight-bad li { margin: .15rem 0; font-size: .82rem; }

.upload-row { display: flex; gap: .6rem; margin-bottom: .4rem; flex-wrap: wrap; }

/* ----------------------------------------------------------- flow builder */
.fb-seq { margin-top: .2rem; }
.fb-node {
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-2);
  margin-top: .7rem;
}
.fb-depth-2 { border-color: var(--ink-soft); margin-left: 1.4rem; }
.fb-depth-3, .fb-depth-4 { border-color: var(--line); margin-left: 1.4rem; }
.fb-depth-2 > .fb-node { border-color: var(--ink-soft); }
.fb-depth-3 > .fb-node, .fb-depth-4 > .fb-node { border-color: #9ea3ab; }
.fb-head {
  display: flex; gap: .7rem; align-items: center;
  background: var(--ink); padding: .45rem .7rem;
}
.fb-depth-2 > .fb-node > .fb-head { background: var(--ink-soft); }
.fb-depth-3 > .fb-node > .fb-head, .fb-depth-4 > .fb-node > .fb-head { background: #7d828a; }
.fb-step { font-family: var(--mono); font-size: .62rem; color: var(--amber); letter-spacing: .18em; white-space: nowrap; }
.fb-head select { max-width: 300px; }
.fb-spacer { flex: 1; }
.btn-ghost { border-color: transparent; color: var(--paper); background: transparent; }
.btn-ghost:hover { border-color: var(--red); background: var(--red); color: #fff; }
.fb-body { padding: .8rem .9rem 1rem; }
.fb-field { display: inline-block; vertical-align: top; margin: 0 .9rem .5rem 0; min-width: 180px; }
.fb-field select, .fb-field input { min-width: 200px; }
.fb-cond { border-bottom: 1px dashed var(--line); padding-bottom: .4rem; margin-bottom: .3rem; }
.fb-hint { font-size: .78rem; color: var(--ink-soft); margin: .2rem 0 .4rem; }
.fb-add-row { display: flex; align-items: center; gap: .9rem; margin-top: .6rem; flex-wrap: wrap; }
.fb-hangup {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-soft); border: 1px dashed var(--ink-soft); border-radius: 999px;
  padding: .18rem .7rem;
}
.fb-branch-label {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .14em;
  padding: .5rem .2rem 0 .2rem;
}
.fb-branch-label.ok  { color: var(--green); }
.fb-branch-label.bad { color: var(--red); }

/* ---------------------------------------------------------------- login */
body.bare { display: grid; place-items: center; padding: 1rem; }
.login-card {
  width: min(380px, 100%);
  background: var(--paper-2); border: 1.5px solid var(--ink); border-top: 4px solid var(--amber);
  border-radius: var(--radius); padding: 1.6rem 1.7rem;
}
.login-card h1 { margin: .2rem 0 .2rem; }
.login-card p { margin-top: 0; font-size: .88rem; }
.login-card form { display: grid; gap: .7rem; margin-top: 1rem; }

/* ----------------------------------------------------------- responsive */
@media (max-width: 780px) {
  body.app { grid-template-columns: 1fr; }
  .panel { flex-direction: row; align-items: center; gap: 1rem; border-right: 0;
           border-bottom: 3px solid var(--amber); padding: .7rem 1rem; }
  .panel-brand { border: 0; margin: 0; padding: 0; }
  .panel nav { flex-direction: row; }
  .panel-foot { border: 0; padding: 0; margin-left: auto; }
  .panel-foot span:first-child, .panel-brand small { display: none; }
  main { padding: 1rem 1rem 3rem; }
  .fb-depth-2, .fb-depth-3, .fb-depth-4 { margin-left: .6rem; }
}