/* ============================================================
   Tostatronic · Panel WhatsApp — sistema de diseño (colorimetría oficial)
   ============================================================ */
:root{
  --tosta-navy:#031A51; --tosta-blue:#0761BE; --tosta-electric:#199BF4; --tosta-sky:#57B9F5;
  --bg:#F7F9FC; --surface:#FFFFFF; --surface-soft:#EEF4FA;
  --ink:#0C1722; --ink-2:#55668B; --muted:#8B98AC;
  --line:#DCE5EF; --line-strong:#CBD7E6;
  --brand:#0761BE; --brand-strong:#034F9E; --brand-soft:#EAF4FD; --brand-soft-line:#B8DDF8;
  --accent:#199BF4; --heading:#031A51;
  --grad:linear-gradient(135deg,#0761BE,#199BF4);
  --grad-hero:linear-gradient(135deg,#031A51 0%,#0761BE 55%,#199BF4 100%);
  --rail:#031A51; --rail-ink:#C9D5EA; --rail-hover:#0A2C6C; --rail-active:#0761BE; --rail-edge:#199BF4;
  --st-pending:#B47411; --st-pending-bg:#FDF3DF;
  --st-sent:#66748C;    --st-sent-bg:#EEF1F5;
  --st-delivered:#157A52; --st-delivered-bg:#E2F5EC;
  --st-read:#0E7CC7;    --st-read-bg:#E4F2FF;
  --st-failed:#C33A52;  --st-failed-bg:#FBE9EC;
  --success:#1FA971; --warning:#F2A93B; --danger:#DC4C64; --kpi-conv:#625BC8;
  --msg-out:#E4F2FF; --msg-in:#F1F4F8; --conv-sel:#D7EDFF;
  --tbl-head:#EEF4FA; --tbl-alt:#FAFBFD; --tbl-hover:#EDF6FF;
  --shadow:0 4px 18px rgba(3,26,81,.08);
  --radius:12px;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);
  font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{color:var(--heading);letter-spacing:-.01em;margin:0;text-wrap:balance}
a{color:var(--brand)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---- Estructura ---- */
.app{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.content{display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:14px;background:var(--surface);
  border-bottom:1px solid var(--line);padding:11px 22px;position:sticky;top:0;z-index:20}
.topbar h1{font-size:16px;font-weight:600}
.topbar .right{margin-left:auto;display:flex;align-items:center;gap:10px}
.body{padding:22px;display:flex;flex-direction:column;gap:16px;flex:1}

/* ---- Sidebar ---- */
.rail{background:var(--rail);color:var(--rail-ink);display:flex;flex-direction:column;
  padding:14px 10px;position:sticky;top:0;height:100vh}
.rail .brand{display:flex;align-items:center;gap:9px;padding:6px 8px 16px}
.logo-dot{width:30px;height:30px;border-radius:8px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:15px;flex:none}
.rail .brand b{color:#fff;font-size:14px;letter-spacing:.02em}
.rail .brand small{display:block;font-size:10.5px;opacity:.8}
.rail nav{display:flex;flex-direction:column;gap:1px}
.rail nav a{display:flex;align-items:center;gap:10px;color:var(--rail-ink);text-decoration:none;
  padding:8px 10px;border-radius:7px;font-size:13px;border-left:3px solid transparent}
.rail nav a:hover{background:var(--rail-hover);color:#fff}
.rail nav a.on{background:var(--rail-active);color:#fff;font-weight:600;border-left-color:var(--rail-edge)}
.rail nav a .pill-n{margin-left:auto;background:var(--accent);color:#fff;font-size:10.5px;
  font-weight:700;border-radius:99px;padding:1px 7px}
.rail nav a.soon{opacity:.45;cursor:default}
.rail nav a.soon:hover{background:none;color:var(--rail-ink)}
.rail .sect{font-size:10px;letter-spacing:.14em;text-transform:uppercase;opacity:.55;padding:14px 10px 4px}
.rail .foot{margin-top:auto;padding:10px;border-top:1px solid rgba(255,255,255,.1);
  font-size:11.5px;display:flex;align-items:center;gap:8px}
.rail .foot .avatar{width:26px;height:26px;border-radius:99px;background:var(--rail-hover);
  color:#fff;display:grid;place-items:center;font-size:11px;font-weight:600;flex:none}
.rail .foot form{margin:0}
.rail .foot button{background:none;border:none;color:var(--rail-ink);cursor:pointer;
  font-size:11px;text-decoration:underline;padding:0}

/* ---- Componentes ---- */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);
  background:var(--surface);color:var(--ink);border-radius:9px;padding:7px 14px;
  font-size:13px;font-weight:500;cursor:pointer;text-decoration:none;font-family:inherit}
.btn:hover{background:var(--surface-soft)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.btn.primary:hover{background:var(--brand-strong)}
.btn.featured{background:var(--grad);border:none;color:#fff;font-weight:600}
.btn.featured:hover{filter:brightness(1.08)}
.btn.soft{background:var(--brand-soft);border-color:var(--brand-soft-line);color:var(--brand);font-weight:600}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff;font-weight:600}
.btn.sm{padding:4px 10px;font-size:12px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-h{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line)}
.card-h h2,.card-h h3{font-size:13.5px;font-weight:600}
.card-h .hint{color:var(--muted);font-size:12px;margin-left:auto}
.card-b{padding:16px}

.pill{display:inline-flex;align-items:center;gap:5px;border-radius:99px;padding:2px 9px;
  font-size:11.5px;font-weight:600;white-space:nowrap}
.p-pending{background:var(--st-pending-bg);color:var(--st-pending)}
.p-sent{background:var(--st-sent-bg);color:var(--st-sent)}
.p-delivered{background:var(--st-delivered-bg);color:var(--st-delivered)}
.p-read{background:var(--st-read-bg);color:var(--st-read)}
.p-failed{background:var(--st-failed-bg);color:var(--st-failed)}
.p-open{background:var(--brand-soft);color:var(--brand)}
.p-neutral{background:var(--surface-soft);color:var(--ink-2)}

.field{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
.field label{font-size:12px;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{background:var(--surface);border:1px solid var(--line-strong);
  border-radius:9px;padding:8px 11px;font:inherit;color:var(--ink);width:100%}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;
  border-color:var(--accent);box-shadow:0 0 0 3px rgba(25,155,244,.16)}
.field .help{font-size:11.5px;color:var(--muted)}
.field .error{font-size:11.5px;color:var(--danger)}

table.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--heading);
  text-align:left;font-weight:600;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--tbl-head)}
.tbl td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tbody tr:nth-child(even) td{background:var(--tbl-alt)}
.tbl tbody tr:hover td{background:var(--tbl-hover)}
.tbl tr:last-child td{border-bottom:none}
.tbl .num{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums}
.tbl-wrap{overflow-x:auto}

/* ---- Flash ---- */
.flash{border-radius:10px;padding:10px 14px;font-size:13px;margin-bottom:4px;border:1px solid}
.flash.ok{background:var(--st-delivered-bg);color:var(--st-delivered);border-color:#bfe8d6}
.flash.error{background:var(--st-failed-bg);color:var(--st-failed);border-color:#f3c4cd}

/* ---- Dashboard ---- */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
.kpi{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--kc,var(--line));
  border-radius:var(--radius);padding:12px 15px;box-shadow:var(--shadow)}
.kpi .k-label{font-size:11.5px;font-weight:600;color:var(--ink-2)}
.kpi .k-value{font-size:24px;font-weight:650;margin-top:4px;color:var(--heading);
  font-variant-numeric:tabular-nums}
.kpi .k-sub{font-size:11.5px;color:var(--muted);margin-top:2px}
.grid-2{display:grid;grid-template-columns:1.6fr 1fr;gap:16px}
.bars{display:flex;align-items:flex-end;gap:6px;height:150px;padding-top:10px}
.bars .bar{flex:1;background:#A9CFF3;border-radius:4px 4px 0 0;min-height:2px;position:relative}
.bars .bar.hoy{background:var(--accent)}
.bars .bar:hover::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 6px);left:50%;
  transform:translateX(-50%);background:var(--tosta-navy);color:#fff;font-size:11px;
  padding:4px 8px;border-radius:6px;white-space:nowrap;font-family:var(--mono);z-index:5}
.bars-labels{display:flex;gap:6px;margin-top:6px}
.bars-labels span{flex:1;text-align:center;font-size:9.5px;color:var(--muted);font-family:var(--mono)}
.svc{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}
.svc:last-child{border-bottom:none}
.svc .st{width:9px;height:9px;border-radius:99px;flex:none}
.st.ok{background:var(--success)} .st.warn{background:var(--warning)} .st.err{background:var(--danger)}
.svc .lat{margin-left:auto;font-family:var(--mono);font-size:11.5px;color:var(--muted)}

/* ---- Ticks ---- */
.tick{display:inline-flex;vertical-align:-2px}
.tick-svg{width:15px;height:11px}
.t-sent{color:var(--st-sent)} .t-delivered{color:var(--st-delivered)}
.t-read{color:var(--st-read)} .t-failed{color:var(--st-failed)} .t-pending{color:var(--muted);font-size:11px}

/* ---- Bandeja de conversaciones ---- */
.conv-filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.chip{background:var(--surface-soft);border:1px solid var(--line);border-radius:99px;
  padding:4px 12px;font-size:12px;color:var(--ink-2);font-weight:500;text-decoration:none}
.chip.on{background:var(--brand-soft);border-color:var(--brand-soft-line);color:var(--brand);font-weight:600}
.conv-list{display:flex;flex-direction:column}
.conv{display:flex;gap:12px;padding:13px 16px;border-bottom:1px solid var(--line);
  text-decoration:none;color:inherit;border-left:4px solid transparent}
.conv:hover{background:var(--tbl-hover)}
.conv:last-child{border-bottom:none}
.conv.unread{border-left-color:var(--accent);background:var(--conv-sel)}
.conv .avatar{width:38px;height:38px;border-radius:99px;background:var(--surface-soft);
  color:var(--ink-2);display:grid;place-items:center;font-size:13px;font-weight:600;
  flex:none;border:1px solid var(--line)}
.conv .cmeta{min-width:0;flex:1}
.conv .l1{display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.conv .l1 b{font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv .l1 time{font-size:11px;color:var(--muted);flex:none}
.conv .l2{display:flex;align-items:center;gap:6px;color:var(--ink-2);font-size:12.5px;margin-top:2px}
.conv .l2 .preview{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.conv .badge{background:var(--accent);color:#fff;border-radius:99px;font-size:10.5px;
  font-weight:700;min-width:18px;height:18px;display:grid;place-items:center;flex:none;padding:0 5px}

/* ---- Chat ---- */
.chat-layout{display:grid;grid-template-columns:1fr 280px;gap:16px;align-items:start}
.chat-box{display:flex;flex-direction:column;min-height:60vh}
.chat-msgs{flex:1;padding:18px;display:flex;flex-direction:column;gap:10px;
  max-height:62vh;overflow-y:auto;background:var(--bg);border-radius:0 0 0 0}
.msg{max-width:72%;border-radius:12px;padding:8px 12px;font-size:13px;
  box-shadow:0 1px 3px rgba(3,26,81,.07);white-space:pre-wrap;word-break:break-word}
.msg .mmeta{display:flex;gap:5px;align-items:center;justify-content:flex-end;
  font-size:10.5px;color:var(--muted);margin-top:4px;white-space:nowrap}
.msg.in{align-self:flex-start;background:var(--msg-in);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.out{align-self:flex-end;background:var(--msg-out);border-bottom-right-radius:4px}
.msg.failed{border:1px solid var(--danger)}
.msg .tpl-tag{font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--brand);margin-bottom:3px}
.day-sep{align-self:center;font-size:10.5px;color:var(--muted);background:var(--surface-soft);
  border-radius:99px;padding:2px 10px}
.chat-f{display:flex;gap:8px;padding:12px 16px;background:var(--surface);
  border-top:1px solid var(--line);align-items:flex-end}
.chat-f textarea{flex:1;background:var(--bg);border:1px solid var(--line-strong);border-radius:14px;
  padding:9px 15px;font:inherit;color:var(--ink);resize:vertical;min-height:40px;max-height:140px}
.chat-f textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(25,155,244,.16)}
.window-pill{font-size:11px;font-weight:600;padding:6px 12px;border-radius:99px;white-space:nowrap}
.window-pill.open{background:var(--st-delivered-bg);color:var(--st-delivered)}
.window-pill.closed{background:var(--st-pending-bg);color:var(--st-pending)}

/* ---- Contexto ---- */
.ctx h4{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  font-weight:700;margin:0 0 6px}
.ctx .kv{display:flex;justify-content:space-between;font-size:12.5px;padding:4px 0;gap:10px}
.ctx .kv span{color:var(--ink-2);flex:none}
.ctx .kv b{font-weight:600;text-align:right;word-break:break-word}
.ctx section{padding:14px 16px;border-bottom:1px solid var(--line)}
.ctx section:last-child{border-bottom:none}
.note{background:var(--st-pending-bg);border:1px dashed var(--st-pending);border-radius:8px;
  padding:8px 10px;font-size:12px;color:var(--st-pending);margin-bottom:8px}
.note small{display:block;color:var(--muted);margin-top:3px}

/* ---- Login ---- */
.login-wrap{min-height:100vh;display:grid;place-items:center;background:var(--grad-hero);padding:24px}
.login-card{width:100%;max-width:380px;background:var(--surface);border-radius:14px;
  box-shadow:0 20px 50px rgba(3,26,81,.35);padding:32px 30px}
.login-card .logo-row{display:flex;align-items:center;gap:10px;margin-bottom:22px}
.login-card h1{font-size:19px;font-weight:650;margin-bottom:4px}
.login-card .sub{color:var(--ink-2);font-size:13px;margin:0 0 22px}

/* ---- Paginación ---- */
.pager{display:flex;gap:6px;align-items:center;justify-content:center;padding:12px}
.pager a,.pager span{padding:5px 11px;border-radius:8px;border:1px solid var(--line);
  text-decoration:none;font-size:12.5px;color:var(--ink-2);background:var(--surface)}
.pager .current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---- Responsivo ---- */
@media (max-width:900px){
  .app{grid-template-columns:1fr}
  .rail{position:fixed;inset:auto 0 0 0;height:auto;flex-direction:row;align-items:center;
    padding:4px 6px;z-index:50}
  .rail .brand,.rail .sect,.rail .foot{display:none}
  .rail nav{flex-direction:row;flex:1;overflow-x:auto}
  .rail nav a{flex:1;justify-content:center;border-left:none;border-bottom:3px solid transparent;
    padding:8px 6px;font-size:11px}
  .rail nav a.on{border-left:none;border-bottom-color:var(--rail-edge)}
  .rail nav a.soon{display:none}
  .body{padding:14px;padding-bottom:70px}
  .grid-2,.chat-layout{grid-template-columns:1fr}
  .msg{max-width:88%}
}