/* =====================================================
   Trading Signals Dashboard — Dark theme
   ===================================================== */

:root {
  /* Backgrounds */
  --bg:           #0a0e1a;
  --bg-2:         #121826;
  --bg-3:         #1a2236;
  --bg-hover:     #212a40;

  /* Borders */
  --border:        rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);

  /* Text */
  --text:       #e6eaf2;
  --text-muted: #8b93a7;
  --text-dim:   #5c6479;

  /* Accents */
  --green:       #22c55e;
  --green-soft:  rgba(34, 197, 94, 0.12);
  --green-glow:  rgba(34, 197, 94, 0.35);
  --red:         #ef4444;
  --red-soft:    rgba(239, 68, 68, 0.12);
  --red-glow:    rgba(239, 68, 68, 0.35);
  --blue:        #3b82f6;
  --blue-soft:   rgba(59, 130, 246, 0.12);
  --yellow:      #eab308;
  --yellow-soft: rgba(234, 179, 8, 0.12);
  --purple:      #a855f7;
  --purple-soft: rgba(168, 85, 247, 0.12);

  /* Fonts */
  --font-sans: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Radius */
  --r-sm: 6px;
  --r:    10px;
  --r-lg: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

.mono { font-family: var(--font-mono); font-feature-settings: "tnum"; }
.muted { color: var(--text-muted); }
.right { text-align: right; }
.flex-spacer { flex: 1; }

/* ===== Backgrounds decorativos ===== */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at top, black 30%, transparent 75%);
}

.bg-glow {
  position: fixed;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.15), transparent 65%);
  pointer-events: none;
  z-index: 0;
}

/* ===== Topbar ===== */
.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-dot {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  box-shadow: 0 0 24px rgba(59,130,246,0.4), inset 0 0 0 1px rgba(255,255,255,0.15);
  position: relative;
}
.logo-dot::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 2px solid rgba(255,255,255,0.95);
  border-radius: 4px;
  border-bottom: none;
  border-right: none;
  transform: rotate(45deg);
}

.brand {
  font-size: 18px;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin: 2px 0 0;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--green-soft);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--green);
}
.live-indicator.error {
  background: var(--red-soft);
  border-color: rgba(239, 68, 68, 0.25);
  color: var(--red);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green-glow);
  animation: pulse 2s infinite;
}
.live-indicator.error .live-dot {
  background: var(--red);
  box-shadow: 0 0 12px var(--red-glow);
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.user-chip {
  font-size: 13px;
  color: var(--text-muted);
  padding: 6px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
}

.btn-ghost {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s ease;
}
.btn-ghost:hover {
  background: var(--bg-3);
  border-color: var(--red);
  color: var(--red);
}

/* ===== Main ===== */
.main {
  position: relative;
  z-index: 1;
  padding: 28px 32px;
  max-width: 1600px;
  margin: 0 auto;
}

/* ===== KPIs ===== */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.kpi-card {
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}
.kpi-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  opacity: 0.5;
}
.kpi-card.kpi-largo::before {
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}
.kpi-card.kpi-corto::before {
  background: linear-gradient(90deg, transparent, var(--red), transparent);
}

.kpi-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.kpi-value-small {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.kpi-largo .kpi-value { color: var(--green); }
.kpi-corto .kpi-value { color: var(--red); }

/* ===== Rango temporal (presets + custom dates) ===== */
.date-range {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px 18px;
  margin-bottom: 16px;
}

.date-range-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.date-range-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 700;
}

.date-range-active {
  font-size: 12px;
  color: var(--blue);
  padding: 4px 10px;
  background: var(--blue-soft);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 999px;
  font-weight: 600;
}

.date-range-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-btn {
  padding: 7px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s ease;
}
.preset-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: rgba(59, 130, 246, 0.4);
}
.preset-btn.is-active {
  background: linear-gradient(135deg, var(--blue), #6366f1);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.custom-dates {
  display: none;
  gap: 10px;
  align-items: flex-end;
  flex-wrap: wrap;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
}
.custom-dates.is-visible {
  display: flex;
}

.date-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.date-field span {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.date-field input[type="date"] {
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  padding: 9px 12px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
  min-width: 160px;
  /* Invertir el icono del calendario para que se vea en dark */
  color-scheme: dark;
}
.date-field input[type="date"]:focus {
  border-color: var(--blue);
}

.kpi-label-suffix {
  font-weight: 500;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text-dim);
  font-size: 10px;
  margin-left: 4px;
}

/* ===== Filters ===== */
.filters {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 20px;
  padding: 16px 18px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  flex-wrap: wrap;
}

.filter {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 140px;
}
.filter span {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.filter select,
.filter input {
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  padding: 9px 12px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
  cursor: pointer;
}
.filter select:focus,
.filter input:focus {
  border-color: var(--blue);
}

.btn-secondary {
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  color: var(--text);
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-sans);
}
.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--blue);
}

.refresh-info {
  font-size: 11px;
  color: var(--text-muted);
  padding: 6px 12px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 999px;
}

/* ===== Tabla ===== */
.table-wrap {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  overflow-x: auto;
}

.signals-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.signals-table thead {
  background: var(--bg-3);
  border-bottom: 1px solid var(--border-strong);
}

.signals-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 700;
  white-space: nowrap;
}
.signals-table th.right { text-align: right; }

.signals-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.signals-table tbody tr:hover {
  background: var(--bg-3);
}
.signals-table tbody tr:last-child { border-bottom: none; }

.signals-table td {
  padding: 12px 16px;
  vertical-align: middle;
  white-space: nowrap;
}
.signals-table td.right { text-align: right; }

.signals-table .empty td {
  text-align: center;
  padding: 60px 16px;
  color: var(--text-muted);
  font-style: italic;
}

/* Cell stylings */
.cell-date    { color: var(--text-muted); font-family: var(--font-mono); font-size: 12px; }
.cell-symbol  { font-weight: 700; letter-spacing: -0.01em; }
.cell-close   { font-family: var(--font-mono); font-weight: 500; }
.cell-combo   { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }

.cell-pct     { font-family: var(--font-mono); font-weight: 500; }
.cell-pct.pos { color: var(--green); }
.cell-pct.neg { color: var(--red); }
.cell-pct.neutral { color: var(--text-muted); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-family: var(--font-mono);
  white-space: nowrap;
}

.badge-largo {
  background: var(--green-soft);
  color: var(--green);
  border: 1px solid rgba(34,197,94,0.25);
  box-shadow: 0 0 12px rgba(34,197,94,0.08);
}
.badge-corto {
  background: var(--red-soft);
  color: var(--red);
  border: 1px solid rgba(239,68,68,0.25);
  box-shadow: 0 0 12px rgba(239,68,68,0.08);
}

.badge-decade {
  background: var(--purple-soft);
  color: var(--purple);
  border: 1px solid rgba(168,85,247,0.25);
}

.badge-yearly-bpb {
  background: var(--blue-soft);
  color: var(--blue);
  border: 1px solid rgba(59,130,246,0.25);
}
.badge-yearly-rpb {
  background: var(--yellow-soft);
  color: var(--yellow);
  border: 1px solid rgba(234,179,8,0.25);
}
.badge-yearly-error {
  background: var(--red-soft);
  color: var(--red);
  border: 1px solid rgba(239,68,68,0.25);
}

.badge-neutral {
  background: var(--bg-3);
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
}

/* Row highlight para señales nuevas */
@keyframes flash-new {
  0%   { background: rgba(59, 130, 246, 0.18); }
  100% { background: transparent; }
}
.signals-table tbody tr.is-new {
  animation: flash-new 2.5s ease-out;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 22px;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

/* ===== Login ===== */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at top, rgba(59,130,246,0.15), transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(139,92,246,0.10), transparent 50%),
    var(--bg);
  position: relative;
}

.login-body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  pointer-events: none;
}

.login-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.login-card {
  background: linear-gradient(180deg, var(--bg-2), rgba(18, 24, 38, 0.6));
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 36px 32px;
  box-shadow:
    0 20px 60px rgba(0,0,0,0.5),
    inset 0 1px 0 rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}
.login-header .logo-dot {
  margin: 0 auto 16px;
}
.login-header h1 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 4px;
  letter-spacing: -0.02em;
}
.login-header p { margin: 0; font-size: 13px; }

.login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field span {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}
.field input {
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  padding: 11px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.btn-primary {
  margin-top: 4px;
  background: linear-gradient(135deg, var(--blue), #6366f1);
  color: white;
  border: none;
  border-radius: var(--r);
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  font-family: var(--font-sans);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(59,130,246,0.35);
}
.btn-primary:active { transform: translateY(0); }

.alert-error {
  background: var(--red-soft);
  border: 1px solid rgba(239,68,68,0.3);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: var(--r);
  font-size: 13px;
  text-align: center;
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 11px;
  color: var(--text-dim);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .topbar { padding: 14px 18px; flex-wrap: wrap; gap: 12px; }
  .brand { font-size: 16px; }
  .subtitle { display: none; }
  .main { padding: 18px; }
  .kpis { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .kpi-card { padding: 14px; }
  .kpi-value { font-size: 24px; }
  .filters { padding: 12px; gap: 8px; }
  .filter { min-width: 100%; }
  .signals-table { font-size: 12px; }
  .signals-table th, .signals-table td { padding: 10px 12px; }
  .topbar-right { gap: 8px; }
  .user-chip { display: none; }
  .date-range { padding: 14px; }
  .preset-btn { padding: 6px 12px; font-size: 11px; }
  .date-field { flex: 1; min-width: 0; }
  .date-field input[type="date"] { min-width: 0; width: 100%; }
  .custom-dates { width: 100%; }
}