/* ================================================================
   SISTEMA JUICIOS EVALUATIVOS — Design System
   Paleta: Dark mode + SENA Azul #003082 + Verde #00A650
   ================================================================ */

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

/* ── Variables ── */
:root {
  --bg-base:       #0d1117;
  --bg-card:       #161b22;
  --bg-card-hover: #1c2333;
  --bg-sidebar:    #0d1117;
  --bg-input:      #21262d;

  --border:        #30363d;
  --border-focus:  #003082;

  --sena-blue:     #003082;
  --sena-blue-lt:  #1a4db5;
  --sena-green:    #00A650;
  --sena-green-lt: #00c45e;

  --accent:        #1a4db5;
  --accent-glow:   rgba(26,77,181,0.25);

  --text-primary:  #e6edf3;
  --text-secondary:#8b949e;
  --text-muted:    #484f58;

  --success:       #00A650;
  --warning:       #d29922;
  --danger:        #da3633;
  --info:          #388bfd;

  --radius-sm:     6px;
  --radius-md:     10px;
  --radius-lg:     16px;
  --radius-xl:     24px;

  --shadow-sm:     0 1px 3px rgba(0,0,0,.4);
  --shadow-md:     0 4px 16px rgba(0,0,0,.5);
  --shadow-lg:     0 8px 32px rgba(0,0,0,.6);
  --shadow-glow:   0 0 24px var(--accent-glow);

  --sidebar-w:     260px;
  --header-h:      64px;
  --transition:    all .2s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--sena-blue-lt); text-decoration: none; }
a:hover { color: var(--sena-green); }
img { max-width: 100%; }
ul { list-style: none; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ================================================================
   LAYOUT
   ================================================================ */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.sidebar-logo .logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--sena-blue), var(--sena-green));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; color: #fff;
  flex-shrink: 0;
}
.sidebar-logo .logo-text { line-height: 1.2; }
.sidebar-logo .logo-text strong { display: block; font-size: 14px; font-weight: 700; }
.sidebar-logo .logo-text span { font-size: 11px; color: var(--text-secondary); }

.sidebar-nav { padding: 12px 0; flex: 1; }
.nav-group-title {
  padding: 8px 20px 4px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-secondary);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.nav-item .nav-icon { font-size: 16px; width: 20px; text-align: center; flex-shrink: 0; }
.nav-item:hover { background: var(--bg-card); color: var(--text-primary); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(26,77,181,.15), transparent);
  color: var(--sena-blue-lt);
  font-weight: 600;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--sena-blue), var(--sena-green));
  border-radius: 0 2px 2px 0;
}
.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--sena-blue), var(--sena-green));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; color: #fff;
  flex-shrink: 0;
}
.user-info { flex: 1; min-width: 0; }
.user-info strong { display: block; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-info span { font-size: 11px; color: var(--text-secondary); }
.btn-logout {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.btn-logout:hover { color: var(--danger); background: rgba(218,54,51,.1); }

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

/* ── Header ── */
.topbar {
  height: var(--header-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 90;
  backdrop-filter: blur(12px);
}
.page-title { font-size: 18px; font-weight: 700; }
.page-subtitle { font-size: 12px; color: var(--text-secondary); margin-top: 1px; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }

/* ── Page body ── */
.page-body {
  padding: 28px;
  flex: 1;
}

/* ================================================================
   COMPONENTS
   ================================================================ */

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}
.card:hover { border-color: #3d444d; }
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.card-title { font-size: 15px; font-weight: 600; }
.card-subtitle { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

/* ── KPI Cards ── */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--kpi-color, var(--sena-blue));
}
.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: #3d444d; }
.kpi-icon {
  width: 44px; height: 44px;
  background: rgba(255,255,255,.06);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}
.kpi-value { font-size: 30px; font-weight: 800; line-height: 1; margin-bottom: 4px; }
.kpi-label { font-size: 12px; color: var(--text-secondary); font-weight: 500; }
.kpi-trend { font-size: 11px; margin-top: 8px; display: flex; align-items: center; gap: 4px; }
.trend-up { color: var(--success); }
.trend-down { color: var(--danger); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
  white-space: nowrap;
}
.btn-primary { background: var(--sena-blue); color: #fff; border-color: var(--sena-blue); }
.btn-primary:hover { background: var(--sena-blue-lt); box-shadow: var(--shadow-glow); }
.btn-success { background: var(--sena-green); color: #fff; border-color: var(--sena-green); }
.btn-success:hover { background: var(--sena-green-lt); }
.btn-outline { background: transparent; color: var(--text-primary); border-color: var(--border); }
.btn-outline:hover { background: var(--bg-card-hover); border-color: #3d444d; }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: #f44336; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Badges ── */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-success  { background: rgba(0,166,80,.15);  color: var(--success); }
.badge-danger   { background: rgba(218,54,51,.15); color: var(--danger); }
.badge-warning  { background: rgba(210,153,34,.15);color: var(--warning); }
.badge-info     { background: rgba(56,139,253,.15); color: var(--info); }
.badge-muted    { background: rgba(139,148,158,.1); color: var(--text-secondary); }

/* ── Tables ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); }
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table thead tr { border-bottom: 1px solid var(--border); }
.table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-secondary);
  white-space: nowrap;
}
.table tbody tr { border-bottom: 1px solid #21262d; transition: background .15s; }
.table tbody tr:last-child { border-bottom: none; }
.table tbody tr:hover { background: var(--bg-card-hover); }
.table td { padding: 12px 16px; vertical-align: middle; }

/* ── Progress ── */
.progress-bar-wrap { background: var(--bg-input); border-radius: 20px; overflow: hidden; height: 8px; }
.progress-bar { height: 100%; border-radius: 20px; transition: width .6s ease; }
.progress-bar.blue  { background: linear-gradient(90deg, var(--sena-blue), var(--sena-blue-lt)); }
.progress-bar.green { background: linear-gradient(90deg, var(--sena-green), var(--sena-green-lt)); }
.progress-bar.warn  { background: linear-gradient(90deg, var(--warning), #e5b233); }
.progress-bar.danger{ background: linear-gradient(90deg, var(--danger), #f44336); }
.progress-label { font-size: 11px; color: var(--text-secondary); margin-top: 4px; display: flex; justify-content: space-between; }

/* ── Forms ── */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 7px; color: var(--text-primary); }
.form-label .req { color: var(--danger); margin-left: 2px; }
.form-control {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 13.5px;
  padding: 10px 14px;
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--sena-blue-lt); box-shadow: 0 0 0 3px rgba(26,77,181,.2); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }
.form-hint { font-size: 11px; color: var(--text-secondary); margin-top: 5px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }

/* ── Alerts ── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}
.alert-success { background: rgba(0,166,80,.1);  border: 1px solid rgba(0,166,80,.3);  color: #3dd68c; }
.alert-danger   { background: rgba(218,54,51,.1); border: 1px solid rgba(218,54,51,.3); color: #ff7b72; }
.alert-warning  { background: rgba(210,153,34,.1);border: 1px solid rgba(210,153,34,.3);color: #e3b341; }
.alert-info     { background: rgba(56,139,253,.1);border: 1px solid rgba(56,139,253,.3);color: #79c0ff; }

/* ── Dropzone ── */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-input);
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--sena-blue-lt);
  background: rgba(26,77,181,.06);
}
.dropzone-icon { font-size: 40px; margin-bottom: 12px; }
.dropzone-title { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.dropzone-sub { font-size: 13px; color: var(--text-secondary); }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .25s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform .25s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.modal-title { font-size: 17px; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 20px; cursor: pointer; padding: 4px 8px; border-radius: var(--radius-sm); transition: var(--transition); }
.modal-close:hover { color: var(--text-primary); background: var(--bg-input); }

/* ── Filters bar ── */
.filters-bar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; align-items: center; }
.filter-search { position: relative; flex: 1; min-width: 200px; }
.filter-search .search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; }
.filter-search input { padding-left: 36px; }

/* ── Tabs ── */
.tabs { display: flex; gap: 4px; background: var(--bg-input); padding: 4px; border-radius: var(--radius-md); margin-bottom: 20px; }
.tab {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: none;
  font-family: 'Inter', sans-serif;
}
.tab.active { background: var(--bg-card); color: var(--text-primary); font-weight: 600; box-shadow: var(--shadow-sm); }
.tab:hover:not(.active) { color: var(--text-primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 48px 24px; color: var(--text-secondary); }
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; opacity: .5; }
.empty-state p { font-size: 14px; }

/* ── Loading ── */
.spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--sena-blue-lt);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Grid helpers ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .page-body { padding: 16px; }
}

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp .35s ease both; }
.fade-in-delay-1 { animation-delay: .05s; }
.fade-in-delay-2 { animation-delay: .1s; }
.fade-in-delay-3 { animation-delay: .15s; }
.fade-in-delay-4 { animation-delay: .2s; }

/* ── Chart containers ── */
.chart-container { position: relative; }
.chart-container canvas { max-width: 100%; }