/* FacturadorSII — Panel de certificación (multi-tenant) */
:root {
  --primary: #1a56db;
  --primary-dark: #1e40af;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
       background: var(--gray-100); color: var(--gray-800); min-height: 100vh; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: 'Fira Code', 'Consolas', monospace; font-size: .85em; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 260px; background: var(--gray-900); color: #fff; padding: 0;
           display: flex; flex-direction: column; position: fixed; height: 100vh;
           overflow-y: auto; }
.sidebar-header { padding: 1.25rem 1rem; border-bottom: 1px solid var(--gray-700); }
.sidebar-header h2 { font-size: .95rem; font-weight: 600; color: #fff; }
.sidebar-header small { color: var(--gray-500); font-size: .75rem; }
.sidebar nav { flex: 1; padding: .5rem 0; }
.sidebar nav a { display: flex; align-items: center; padding: .6rem 1rem;
                 color: var(--gray-300); font-size: .875rem; transition: background .15s; }
.sidebar nav a:hover { background: var(--gray-700); color: #fff; text-decoration: none; }
.sidebar nav a.active { background: var(--primary-dark); color: #fff; }
.nav-section { padding: .5rem 1rem .25rem; font-size: .7rem; text-transform: uppercase;
               letter-spacing: .05em; color: var(--gray-500); margin-top: .5rem; }
.sidebar-footer { padding: 1rem; border-top: 1px solid var(--gray-700);
                  font-size: .8rem; color: var(--gray-500); }
.sidebar-footer a { color: var(--gray-300); }

/* Selector de emisor (cliente activo) */
.emisor-selector { padding: .75rem 1rem; border-bottom: 1px solid var(--gray-700);
                   background: rgba(0,0,0,.2); }
.emisor-selector label { display: block; color: var(--gray-500); font-size: .7rem;
                         text-transform: uppercase; letter-spacing: .05em; margin-bottom: .3rem; }
.emisor-selector select { width: 100%; background: var(--gray-800); color: #fff;
                          border: 1px solid var(--gray-700); border-radius: 6px;
                          padding: .4rem .5rem; font-size: .8rem; }

.main { margin-left: 260px; flex: 1; padding: 2rem; min-height: 100vh; }
.main-header { margin-bottom: 1.5rem; }
.main-header h1 { font-size: 1.5rem; font-weight: 600; color: var(--gray-900); }
.main-header p { color: var(--gray-500); margin-top: .25rem; }

/* Cards */
.card { background: #fff; border-radius: var(--radius); border: 1px solid var(--gray-200);
        padding: 1.5rem; margin-bottom: 1rem; }
.card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; color: var(--gray-800); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
             gap: 1rem; margin-bottom: 1rem; }
.stat-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
             padding: 1rem; text-align: center; }
.stat-card .label { font-size: .75rem; color: var(--gray-500); text-transform: uppercase;
                    letter-spacing: .03em; }
.stat-card .value { font-size: 1.5rem; font-weight: 700; color: var(--gray-900); margin-top: .25rem; }

/* Quick actions grid */
.actions-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
                gap: .75rem; }
.action-btn { display: flex; flex-direction: column; align-items: center; padding: 1rem;
              background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
              color: var(--gray-700); font-size: .85rem; font-weight: 500;
              transition: all .15s; cursor: pointer; text-align: center; }
.action-btn:hover { border-color: var(--primary); color: var(--primary);
                    box-shadow: 0 2px 8px rgba(26,86,219,.1); text-decoration: none; }
.action-btn .code { font-size: 1.5rem; font-weight: 700; color: var(--primary);
                    margin-bottom: .25rem; }
.action-btn.disabled { opacity: .5; cursor: not-allowed; border-style: dashed; }
.action-btn.disabled:hover { border-color: var(--gray-300); color: var(--gray-500);
                              box-shadow: none; }
.badge-pending { font-size: .65rem; background: var(--warning); color: #fff;
                 padding: .1rem .4rem; border-radius: 10px; margin-top: .25rem; }

/* Forms */
fieldset { border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 1.25rem;
           margin-bottom: 1rem; }
legend { font-size: .85rem; font-weight: 600; color: var(--gray-700); padding: 0 .5rem; }
label { display: block; font-size: .8rem; font-weight: 500; color: var(--gray-700);
        margin-bottom: .25rem; margin-top: .75rem; }
label:first-child { margin-top: 0; }
input, select, textarea { width: 100%; padding: .5rem .75rem; border: 1px solid var(--gray-300);
                          border-radius: 6px; font-size: .875rem; color: var(--gray-800);
                          background: #fff; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary);
                                            box-shadow: 0 0 0 3px rgba(26,86,219,.1); }
input[type="checkbox"] { width: auto; margin-right: .5rem; }
.checkbox-label { display: flex; align-items: center; margin-top: .75rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.form-row-4 { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: .75rem; }

/* Detalle rows */
.detalle-row { display: grid; grid-template-columns: 2.5fr 1fr 1fr .8fr .8fr auto;
               gap: .5rem; align-items: end; padding: .5rem 0;
               border-bottom: 1px solid var(--gray-100); }
.detalle-row label { font-size: .7rem; margin-top: 0; }
.detalle-header { font-weight: 600; font-size: .75rem; color: var(--gray-500);
                  border-bottom: 2px solid var(--gray-200); padding-bottom: .5rem; }
.detalle-header span { display: block; }
.btn-remove-row { background: none; border: 1px solid var(--danger); color: var(--danger);
                  border-radius: 6px; padding: .4rem .6rem; cursor: pointer; font-size: .8rem; }
.btn-remove-row:hover { background: var(--danger); color: #fff; }
.btn-add-row { background: none; border: 1px dashed var(--primary); color: var(--primary);
               border-radius: 6px; padding: .5rem 1rem; cursor: pointer; font-size: .85rem;
               margin-top: .5rem; width: 100%; }
.btn-add-row:hover { background: rgba(26,86,219,.05); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .6rem 1.25rem;
       border-radius: 6px; font-size: .875rem; font-weight: 500; cursor: pointer;
       border: 1px solid transparent; transition: all .15s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; text-decoration: none; color: #fff; }
.btn-outline { background: #fff; border-color: var(--gray-300); color: var(--gray-700); }
.btn-outline:hover { background: var(--gray-50); text-decoration: none; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; text-decoration: none; color: #fff; }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-group { display: flex; gap: .5rem; margin-top: 1rem; flex-wrap: wrap; }

/* Alerts */
.alert { padding: .75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem;
         font-size: .875rem; border-left: 4px solid; }
.alert-success { background: #f0fdf4; border-color: var(--success); color: #166534; }
.alert-error { background: #fef2f2; border-color: var(--danger); color: #991b1b; }
.alert-warning { background: #fffbeb; border-color: var(--warning); color: #92400e; }
.alert-info { background: #eff6ff; border-color: var(--primary); color: #1e40af; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th { text-align: left; padding: .6rem .75rem; background: var(--gray-50);
     border-bottom: 2px solid var(--gray-200); color: var(--gray-500);
     font-size: .75rem; text-transform: uppercase; letter-spacing: .03em; }
td { padding: .6rem .75rem; border-bottom: 1px solid var(--gray-100); }
tr:hover td { background: var(--gray-50); }

/* Status badges */
.badge { display: inline-block; padding: .15rem .5rem; border-radius: 10px;
         font-size: .75rem; font-weight: 500; }
.badge-ok { background: #dcfce7; color: #166534; }
.badge-err { background: #fef2f2; color: #991b1b; }
.badge-warn { background: #fffbeb; color: #92400e; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-gray { background: var(--gray-100); color: var(--gray-500); }

/* XML preview */
.xml-preview { background: #1e293b; color: #e2e8f0; padding: 1rem; border-radius: var(--radius);
               overflow: auto; max-height: 400px; font-family: 'Fira Code', 'Consolas', monospace;
               font-size: .8rem; line-height: 1.5; white-space: pre-wrap; word-break: break-all; }

/* Result totals */
.totales-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.total-item { text-align: center; padding: 1rem; background: var(--gray-50);
              border-radius: var(--radius); }
.total-item .label { font-size: .75rem; color: var(--gray-500); }
.total-item .amount { font-size: 1.25rem; font-weight: 700; margin-top: .25rem; }
.total-item.total-final { background: var(--primary); }
.total-item.total-final .label, .total-item.total-final .amount { color: #fff; }

/* Login page */
.login-container { display: flex; align-items: center; justify-content: center;
                   min-height: 100vh; background: var(--gray-100); }
.login-box { background: #fff; padding: 2rem; border-radius: var(--radius);
             box-shadow: 0 4px 24px rgba(0,0,0,.08); width: 100%; max-width: 400px; }
.login-box h1 { font-size: 1.25rem; text-align: center; margin-bottom: .25rem; }
.login-box .subtitle { text-align: center; color: var(--gray-500); font-size: .85rem;
                       margin-bottom: 1.5rem; }
.login-box .btn { width: 100%; justify-content: center; margin-top: 1.25rem; }

/* Listas de definición / info */
.info-grid { display: grid; grid-template-columns: auto 1fr; gap: .25rem .75rem;
             font-size: .875rem; }
.info-grid dt { color: var(--gray-500); font-weight: 500; }
.info-grid dd { color: var(--gray-800); }

/* Helpers */
.muted { color: var(--gray-500); }
.mono { font-family: 'Fira Code', 'Consolas', monospace; }
.text-right { text-align: right; }
.mt-1 { margin-top: 1rem; }
.empty-state { text-align: center; color: var(--gray-500); padding: 2rem 0; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 1rem; }
  .form-row, .form-row-3, .form-row-4 { grid-template-columns: 1fr; }
  .detalle-row { grid-template-columns: 1fr 1fr; }
  .totales-grid { grid-template-columns: 1fr 1fr; }
  .card-grid { grid-template-columns: 1fr; }
}