@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-light: #818cf8;
  --secondary: #0ea5e9;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --dark-3: #334155;
  --dark-4: #475569;
  --light: #f8fafc;
  --light-2: #f1f5f9;
  --light-3: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --sidebar-w: 260px;
  --header-h: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --transition: all 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--light-2);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--light-3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--dark-4); }

/* ─── LOGIN PAGE ─── */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 40%, #312e81 100%);
  position: relative;
  overflow: hidden;
}

.login-wrapper::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(79,70,229,0.3) 0%, transparent 70%);
  top: -200px; right: -200px;
  animation: pulse-bg 4s ease-in-out infinite;
}
.login-wrapper::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(6,182,212,0.2) 0%, transparent 70%);
  bottom: -100px; left: -100px;
  animation: pulse-bg 6s ease-in-out infinite reverse;
}

@keyframes pulse-bg {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.1); opacity: 1; }
}

.login-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 24px;
  padding: 48px;
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 10;
  box-shadow: 0 32px 80px rgba(0,0,0,0.4);
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo .logo-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  font-size: 32px;
  box-shadow: 0 8px 32px rgba(79,70,229,0.4);
}

.login-logo h1 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.login-logo p {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  margin-top: 4px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-group .input-wrap {
  position: relative;
}

.form-group .input-wrap i {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,0.3);
  font-size: 16px;
}

.form-group input {
  width: 100%;
  padding: 12px 14px 12px 44px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder { color: rgba(255,255,255,0.3); }
.form-group input:focus {
  background: rgba(255,255,255,0.12);
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.2);
}

.btn-login {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
  letter-spacing: 0.3px;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(79,70,229,0.4);
}
.btn-login:active { transform: translateY(0); }

.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 500;
}
.alert-danger { background: rgba(239,68,68,0.15); color: #fca5a5; border: 1px solid rgba(239,68,68,0.2); }
.alert-success { background: rgba(16,185,129,0.15); color: #6ee7b7; border: 1px solid rgba(16,185,129,0.2); }
.alert-warning { background: rgba(245,158,11,0.15); color: #fcd34d; border: 1px solid rgba(245,158,11,0.2); }
.alert-info { background: rgba(14,165,233,0.15); color: #7dd3fc; border: 1px solid rgba(14,165,233,0.2); }

/* ─── LAYOUT PRINCIPAL ─── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ─── SIDEBAR ─── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--dark);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: var(--transition);
  overflow: hidden;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex; align-items: center; gap: 12px;
}

.sidebar-logo .logo-box {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}

.sidebar-logo .logo-text h2 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
}
.sidebar-logo .logo-text span {
  color: rgba(255,255,255,0.4);
  font-size: 11px;
}

.sidebar-section {
  padding: 16px 12px 8px;
}

.sidebar-section-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  padding: 0 8px;
  margin-bottom: 6px;
}

.sidebar-nav { flex: 1; overflow-y: auto; padding-bottom: 16px; }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 20px;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  border-radius: var(--radius-sm);
  margin: 2px 8px;
  font-size: 13.5px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-item i { font-size: 17px; flex-shrink: 0; width: 20px; text-align: center; }

.nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.9);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(79,70,229,0.3), rgba(79,70,229,0.1));
  color: #fff;
  border-left: 3px solid var(--primary-light);
  margin-left: 8px;
  padding-left: 17px;
}

.nav-item .badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
}

.sidebar-user .avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: #fff; font-weight: 700; flex-shrink: 0;
}

.sidebar-user .user-info { flex: 1; min-width: 0; }
.sidebar-user .user-name {
  color: #fff; font-size: 13px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sidebar-user .user-role {
  color: rgba(255,255,255,0.4); font-size: 11px;
}

.sidebar-user .logout-btn {
  color: rgba(255,255,255,0.3); font-size: 16px;
  text-decoration: none; transition: var(--transition);
}
.sidebar-user .logout-btn:hover { color: var(--danger); }

/* ─── MAIN CONTENT ─── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ─── TOP BAR ─── */
.topbar {
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky; top: 0; z-index: 50;
}

.topbar-title { flex: 1; }
.topbar-title h1 { font-size: 18px; font-weight: 700; color: var(--dark); }
.topbar-title p { font-size: 12px; color: var(--text-muted); }

.topbar-actions { display: flex; align-items: center; gap: 12px; }

.page-content { padding: 24px; flex: 1; }

/* ─── CARDS ─── */
.card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 15px; font-weight: 700; color: var(--dark);
  display: flex; align-items: center; gap: 8px;
}
.card-title i { color: var(--primary); }

.card-body { padding: 20px; }

/* ─── STAT CARDS ─── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  display: flex; align-items: center; gap: 16px;
  transition: var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.stat-icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
}
.stat-icon.blue { background: rgba(79,70,229,0.1); color: var(--primary); }
.stat-icon.green { background: rgba(16,185,129,0.1); color: var(--success); }
.stat-icon.yellow { background: rgba(245,158,11,0.1); color: var(--warning); }
.stat-icon.red { background: rgba(239,68,68,0.1); color: var(--danger); }
.stat-icon.cyan { background: rgba(6,182,212,0.1); color: var(--accent); }
.stat-icon.purple { background: rgba(168,85,247,0.1); color: #a855f7; }

.stat-info .stat-value { font-size: 26px; font-weight: 800; color: var(--dark); line-height: 1; }
.stat-info .stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; font-weight: 500; }
.stat-info .stat-sub { font-size: 11px; color: var(--success); margin-top: 2px; }

/* ─── TABLES ─── */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--light-2);
  padding: 10px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--light-3);
  font-size: 13.5px;
  color: var(--text);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--light-2); }

/* ─── BADGES ─── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600; white-space: nowrap;
}
.badge-success { background: rgba(16,185,129,0.1); color: var(--success); }
.badge-danger  { background: rgba(239,68,68,0.1);  color: var(--danger);  }
.badge-warning { background: rgba(245,158,11,0.1); color: var(--warning); }
.badge-info    { background: rgba(14,165,233,0.1); color: var(--secondary); }
.badge-purple  { background: rgba(168,85,247,0.1); color: #a855f7; }
.badge-dark    { background: rgba(15,23,42,0.08);  color: var(--dark-3);  }
.badge-primary { background: rgba(79,70,229,0.1);  color: var(--primary); }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600;
  font-family: inherit; cursor: pointer;
  border: none; text-decoration: none;
  transition: var(--transition); white-space: nowrap;
}
.btn i { font-size: 15px; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 11px 22px; font-size: 15px; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 4px 12px rgba(79,70,229,0.3); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; box-shadow: 0 4px 12px rgba(16,185,129,0.3); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; box-shadow: 0 4px 12px rgba(239,68,68,0.3); }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #d97706; }

.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--light-2); border-color: var(--primary); color: var(--primary); }

.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--light-2); color: var(--text); }

.btn-icon { padding: 8px; border-radius: var(--radius-sm); }

/* ─── FORMS ─── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.form-full { grid-column: 1 / -1; }

.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--dark-3); margin-bottom: 6px; }
.form-label span { color: var(--danger); }

.form-control, .form-select {
  width: 100%; padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13.5px; font-family: inherit; color: var(--text);
  background: #fff; outline: none;
  transition: var(--transition);
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.form-control.is-invalid { border-color: var(--danger); }
.form-control::placeholder { color: var(--text-muted); }

.input-group { display: flex; }
.input-group .form-control { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-group .btn { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

.form-text { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.invalid-feedback { font-size: 12px; color: var(--danger); margin-top: 4px; }

/* ─── PAGINATION ─── */
.pagination { display: flex; align-items: center; gap: 4px; }
.page-item {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 6px;
  font-size: 13px; font-weight: 500; cursor: pointer;
  text-decoration: none; color: var(--text-muted);
  border: 1px solid var(--border); transition: var(--transition);
}
.page-item:hover { background: var(--light-2); color: var(--primary); border-color: var(--primary); }
.page-item.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-item.disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* ─── MODAL ─── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none; align-items: center; justify-content: center;
  padding: 20px;
}
.modal-overlay.show { display: flex; animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: #fff;
  border-radius: 16px;
  width: 100%; max-width: 560px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.25);
  animation: slideUp 0.25s ease;
  max-height: 90vh; overflow-y: auto;
}
.modal-lg { max-width: 800px; }
.modal-xl { max-width: 1100px; }

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 16px; font-weight: 700; }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-muted); padding: 4px; border-radius: 6px; }
.modal-close:hover { background: var(--light-2); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }

/* ─── TABS ─── */
.tabs { display: flex; border-bottom: 2px solid var(--border); margin-bottom: 20px; gap: 4px; }
.tab {
  padding: 10px 18px; font-size: 13px; font-weight: 600;
  color: var(--text-muted); cursor: pointer; border: none; background: none;
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: var(--transition); display: flex; align-items: center; gap: 6px;
}
.tab:hover { color: var(--primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ─── SEARCH BAR ─── */
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--light-2); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 8px 12px;
  transition: var(--transition);
}
.search-box:focus-within { border-color: var(--primary); background: #fff; }
.search-box i { color: var(--text-muted); font-size: 16px; }
.search-box input { border: none; background: none; outline: none; font-size: 13.5px; font-family: inherit; flex: 1; }

/* ─── SEMÁFORO IMPORTACIÓN ─── */
.import-row-ok    { background: rgba(16,185,129,0.05); }
.import-row-warn  { background: rgba(245,158,11,0.05); }
.import-row-error { background: rgba(239,68,68,0.05); }

/* ─── EMPTY STATE ─── */
.empty-state {
  text-align: center; padding: 60px 20px; color: var(--text-muted);
}
.empty-state i { font-size: 48px; margin-bottom: 12px; opacity: 0.3; display: block; }
.empty-state h3 { font-size: 16px; font-weight: 600; color: var(--dark-3); margin-bottom: 6px; }

/* ─── LOADING ─── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── TOOLTIPS ─── */
[data-tooltip] { position: relative; cursor: default; }
[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute; bottom: calc(100% + 6px); left: 50%;
  transform: translateX(-50%);
  background: var(--dark); color: #fff;
  font-size: 12px; padding: 5px 10px; border-radius: 6px;
  white-space: nowrap; z-index: 999; pointer-events: none;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}

/* ─── UTILITIES ─── */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mt-16 { margin-top: 16px; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.fw-bold { font-weight: 700; }
.fw-600 { font-weight: 600; }
.w-100 { width: 100%; }
.flex-1 { flex: 1; }