:root {
  --surface-50: #f8fafc;
  --surface-100: #243049;
  --surface-200: #1f2b42;
  --surface-300: #1a233b;
  --surface-400: #151d32;
  --surface-500: #101728;
  --surface-600: #0c1120;
  --accent: #d4f01e;
  --accent-light: #dfff4f;
  --accent-dark: #b8d41a;
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --border-subtle: rgba(36, 48, 73, 0.5);
  --border-glass: rgba(255, 255, 255, 0.08);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', ui-monospace, monospace;

  --bs-body-bg: var(--surface-400);
  --bs-body-color: var(--text-primary);
  --bs-primary: var(--accent);
  --bs-primary-rgb: 212, 240, 30;
  --bs-border-color: var(--border-subtle);
  --bs-link-color: var(--accent);
  --bs-link-hover-color: var(--accent-light);
}

html {
  font-size: 15px;
  position: relative;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 20% -10%, rgba(36, 48, 73, 0.55), transparent 45%),
    radial-gradient(circle at 85% 110%, rgba(212, 240, 30, 0.05), transparent 40%),
    var(--surface-400);
  color: var(--text-primary);
  font-family: var(--font-sans);
  margin-bottom: 60px;
}

.btn:focus,
.btn:active:focus,
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.25rem rgba(212, 240, 30, 0.18);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-light);
}

/* ---------- Plataforma / Davalillo Hub ---------- */

.hub-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--surface-600);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hub-logo-sm {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--accent);
  color: var(--surface-600);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.65rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hub-logo-lg {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--accent);
  color: var(--surface-600);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 10px 30px -8px rgba(212, 240, 30, 0.35);
}

.hub-navbar {
  background: rgba(16, 23, 40, 0.92);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.hub-navbar .hub-brand {
  color: #fff;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hub-navbar .hub-brand:hover {
  color: var(--accent);
}

.hub-navbar .nav-link {
  color: #cbd5e1;
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.hub-navbar .nav-link:hover {
  color: #fff;
  background: rgba(36, 48, 73, 0.5);
}

.hub-navbar .nav-link.active {
  color: var(--accent);
  background: rgba(212, 240, 30, 0.08);
  border: 1px solid rgba(212, 240, 30, 0.2);
}

.hub-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(212, 240, 30, 0.08);
  border: 1px solid rgba(212, 240, 30, 0.2);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.hub-pill .hub-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: hubPulse 1.6s ease-in-out infinite;
}

@keyframes hubPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hub-card {
  background: var(--surface-500);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
}

.hub-alert {
  background: rgba(212, 240, 30, 0.06);
  border: 1px solid rgba(212, 240, 30, 0.28);
  border-radius: 10px;
  color: var(--text-primary);
  padding: 0.6rem 0.8rem;
}

.glass {
  background: rgba(36, 48, 73, 0.35);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(8px);
  border-radius: 14px;
}

.hub-footer {
  background: var(--surface-600);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.hub-mono {
  font-family: var(--font-mono);
}

.hub-text-accent { color: var(--accent); }
.hub-text-dim { color: var(--text-secondary); }

.hub-btn-primary {
  background: var(--accent);
  color: var(--surface-600);
  border: 1px solid var(--accent);
  font-weight: 600;
  transition: all 0.15s ease;
}

.hub-btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  color: var(--surface-600);
}

.hub-btn-ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #d1d5db;
  transition: all 0.15s ease;
}

.hub-btn-ghost:hover {
  color: #fff;
  border-color: rgba(212, 240, 30, 0.45);
  background: rgba(255, 255, 255, 0.05);
}

.hub-auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 20% -10%, rgba(36, 48, 73, 0.6), transparent 45%),
    radial-gradient(circle at 80% 110%, rgba(212, 240, 30, 0.06), transparent 40%),
    var(--surface-400);
}

.hub-auth-card {
  width: 100%;
  max-width: 420px;
  padding: 2.2rem 2rem;
  text-align: center;
  background: rgba(16, 23, 40, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  box-shadow: 0 25px 60px -20px rgba(0, 0, 0, 0.6);
}

.hub-auth-card h1 {
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 1rem;
  margin-bottom: 0.1rem;
}

.hub-auth-card .hub-auth-sub {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-bottom: 1.4rem;
}

.hub-auth-card .hub-auth-sub a {
  color: var(--accent);
}

.hub-auth-card .hub-auth-sub a:hover {
  color: var(--accent-light);
}

/* ---------- Overrides Bootstrap ---------- */

.btn-primary {
  --bs-btn-bg: var(--accent);
  --bs-btn-border-color: var(--accent);
  --bs-btn-color: var(--surface-600);
  --bs-btn-hover-bg: var(--accent-light);
  --bs-btn-hover-border-color: var(--accent-light);
  --bs-btn-hover-color: var(--surface-600);
  --bs-btn-active-bg: var(--accent-dark);
  --bs-btn-active-border-color: var(--accent-dark);
  --bs-btn-active-color: var(--surface-600);
  --bs-btn-disabled-bg: rgba(212, 240, 30, 0.4);
  --bs-btn-disabled-border-color: rgba(212, 240, 30, 0.4);
  --bs-btn-disabled-color: var(--surface-600);
  font-weight: 600;
}

.btn-success {
  --bs-btn-bg: #22c55e;
  --bs-btn-border-color: #22c55e;
  --bs-btn-color: #052e16;
  --bs-btn-hover-bg: #4ade80;
  --bs-btn-hover-border-color: #4ade80;
  --bs-btn-hover-color: #052e16;
  font-weight: 600;
}

.btn-outline-secondary {
  --bs-btn-color: #cbd5e1;
  --bs-btn-border-color: rgba(255, 255, 255, 0.25);
  --bs-btn-hover-bg: rgba(255, 255, 255, 0.1);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-border-color: rgba(255, 255, 255, 0.35);
  --bs-btn-active-bg: rgba(255, 255, 255, 0.15);
  --bs-btn-active-color: #fff;
}

.btn-outline-danger {
  --bs-btn-color: #f87171;
  --bs-btn-border-color: rgba(248, 113, 113, 0.4);
  --bs-btn-hover-bg: rgba(248, 113, 113, 0.12);
  --bs-btn-hover-color: #fca5a5;
  --bs-btn-hover-border-color: rgba(248, 113, 113, 0.6);
  --bs-btn-active-bg: rgba(248, 113, 113, 0.2);
}

.btn-outline-primary {
  --bs-btn-color: var(--accent);
  --bs-btn-border-color: rgba(212, 240, 30, 0.45);
  --bs-btn-hover-bg: rgba(212, 240, 30, 0.12);
  --bs-btn-hover-color: var(--accent-light);
  --bs-btn-hover-border-color: var(--accent);
}

.card {
  background-color: var(--surface-500);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.card-header {
  background-color: rgba(36, 48, 73, 0.35);
  border-bottom: 1px solid var(--border-subtle);
  color: #fff;
}

.card-title { color: #fff; }

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--text-primary);
  --bs-table-hover-bg: rgba(36, 48, 73, 0.35);
  --bs-table-hover-color: #fff;
  --bs-table-border-color: var(--border-subtle);
}

.table thead th {
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-control,
.form-select {
  background-color: var(--surface-300);
  border-color: rgba(36, 48, 73, 0.6);
  color: var(--text-primary);
}

.form-control::placeholder {
  color: #6b7280;
}

.form-control:focus,
.form-select:focus {
  background-color: var(--surface-300);
  color: var(--text-primary);
  border-color: var(--accent);
}

.form-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.form-text { color: var(--text-secondary); }

.text-muted { color: var(--text-secondary) !important; }

.alert {
  background-color: rgba(36, 48, 73, 0.65);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.alert-success { border-color: rgba(34, 197, 94, 0.4); }
.alert-danger { border-color: rgba(248, 113, 113, 0.4); }
.alert-info { border-color: rgba(96, 165, 250, 0.4); }

.nav-tabs {
  border-bottom-color: var(--border-subtle);
}

.nav-tabs .nav-link {
  color: var(--text-secondary);
  border: 1px solid transparent;
}

.nav-tabs .nav-link:hover {
  color: #fff;
  border-color: rgba(36, 48, 73, 0.6) rgba(36, 48, 73, 0.6) var(--border-subtle);
  isolation: isolate;
}

.nav-tabs .nav-link.active {
  color: var(--accent);
  background-color: var(--surface-500);
  border-color: var(--border-subtle) var(--border-subtle) var(--surface-500);
}

.text-danger { color: #f87171 !important; }

/* ---------- Visor de firmas ---------- */

.firma-thumb {
  max-height: 56px;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  user-select: none;
  -webkit-user-drag: element;
}

.firma-preview {
  max-height: 140px;
  max-width: 100%;
  height: auto;
}

.firma-item {
  cursor: grab;
  background: var(--surface-300);
  border: 1px solid var(--border-subtle);
  transition: all 0.15s ease;
}

.firma-item:hover {
  border-color: rgba(212, 240, 30, 0.35);
}

.firma-item.selected {
  outline: 2px solid var(--accent);
  background: rgba(212, 240, 30, 0.08);
}

.sig-placement {
  position: absolute;
  cursor: move;
  pointer-events: auto;
  padding: 2px;
  box-sizing: border-box;
}

.sig-placement img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.sig-placement:hover {
  outline: 1px dashed var(--accent);
}

.sig-del {
  position: absolute;
  top: -9px;
  right: -9px;
  width: 18px;
  height: 18px;
  line-height: 16px;
  font-size: 12px;
  padding: 0;
  border-radius: 50%;
  background: #dc3545;
  color: #fff;
  border: none;
  display: none;
  cursor: pointer;
  text-align: center;
  z-index: 2;
}

.sig-resize {
  position: absolute;
  right: -5px;
  bottom: -5px;
  width: 13px;
  height: 13px;
  background: var(--accent);
  border: 2px solid var(--surface-600);
  border-radius: 3px;
  cursor: nwse-resize;
  display: none;
  z-index: 3;
}

.sig-placement:hover .sig-del,
.sig-placement:hover .sig-resize {
  display: block;
}

#pageContainer.drag-over {
  outline: 2px dashed var(--accent);
}

.canvas-wrap canvas {
  display: block;
  max-width: 100%;
}