/* =============================================================
   ETAPA 3 VISUAL — Admin Panel Premium Stylesheet
   AuroraTechno Academy / Dev Invisível™

   Futurista • Cyber Neon • Glassmorphism • HUD Tecnológico
   ============================================================= */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* =============================================================
   CSS CUSTOM PROPERTIES (40+)
   ============================================================= */
:root {
  /* ── Color Palette ── */
  --admin-cyan: #00D9FF;
  --admin-blue: #2F6BFF;
  --admin-purple: #7A5CFF;
  --admin-magenta: #B026FF;
  --admin-green: #00FF88;
  --admin-red: #FF3366;
  --admin-yellow: #FFD600;
  --admin-orange: #FF8C00;

  /* ── Backgrounds ── */
  --admin-bg-primary: #02030a;
  --admin-bg-secondary: #050816;
  --admin-bg-card: rgba(8, 15, 35, 0.82);
  --admin-bg-glass: rgba(255, 255, 255, 0.04);
  --admin-bg-glass-strong: rgba(255, 255, 255, 0.08);
  --admin-bg-glass-hover: rgba(255, 255, 255, 0.06);
  --admin-bg-sidebar: rgba(4, 8, 24, 0.94);
  --admin-bg-header: rgba(4, 8, 24, 0.88);
  --admin-bg-input: rgba(8, 14, 32, 0.7);

  /* ── Text ── */
  --admin-text-primary: #E8ECF8;
  --admin-text-secondary: #8892B0;
  --admin-text-muted: #4A5568;
  --admin-text-dim: #2D3748;

  /* ── Borders ── */
  --admin-border-default: rgba(0, 217, 255, 0.15);
  --admin-border-active: rgba(0, 217, 255, 0.4);
  --admin-border-subtle: rgba(255, 255, 255, 0.06);
  --admin-border-neon: rgba(0, 217, 255, 0.25);

  /* ── Glows ── */
  --admin-glow-cyan: 0 0 20px rgba(0, 217, 255, 0.15);
  --admin-glow-purple: 0 0 20px rgba(122, 92, 255, 0.15);
  --admin-glow-blue: 0 0 20px rgba(47, 107, 255, 0.15);
  --admin-glow-intense: 0 0 40px rgba(0, 217, 255, 0.25), 0 0 80px rgba(122, 92, 255, 0.1);
  --admin-glow-hover: 0 0 30px rgba(0, 217, 255, 0.2), 0 0 60px rgba(122, 92, 255, 0.08);

  /* ── Spacing ── */
  --admin-sidebar-width: 260px;
  --admin-header-height: 68px;
  --admin-content-padding: 28px;
  --admin-content-max: 1360px;
  --admin-radius-sm: 10px;
  --admin-radius-md: 16px;
  --admin-radius-lg: 24px;
  --admin-radius-xl: 32px;

  /* ── Transitions ── */
  --admin-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --admin-transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* ── Fonts ── */
  --admin-font-primary: 'Inter', system-ui, -apple-system, sans-serif;
  --admin-font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

/* =============================================================
   RESET & BASE
   ============================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  background: var(--admin-bg-primary);
  color: var(--admin-text-primary);
  font-family: var(--admin-font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* =============================================================
   UTILITY CLASSES (CRITICAL — JS uses .hidden)
   ============================================================= */
.hidden { display: none; }

.muted {
  color: var(--admin-text-muted);
  line-height: 1.6;
}

.eyebrow {
  color: var(--admin-cyan);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  margin: 0 0 8px;
}

/* =============================================================
   TYPOGRAPHY (inside .admin-layout)
   ============================================================= */
.admin-layout h1 {
  font-family: var(--admin-font-primary);
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.15;
  margin: 0 0 8px;
  color: var(--admin-text-primary);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.admin-layout h2 {
  font-family: var(--admin-font-primary);
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.2;
  margin: 8px 0;
  color: var(--admin-text-primary);
  font-weight: 700;
}

.admin-layout h3 {
  font-family: var(--admin-font-primary);
  font-size: 18px;
  font-weight: 700;
  color: var(--admin-text-primary);
  margin: 0 0 6px;
}

.admin-layout p {
  color: var(--admin-text-secondary);
  line-height: 1.6;
  font-size: 14px;
}

/* =============================================================
   ADMIN LAYOUT — Flex Container
   ============================================================= */
.admin-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  background:
    radial-gradient(ellipse at 10% 0%, rgba(0, 217, 255, 0.05), transparent 50%),
    radial-gradient(ellipse at 90% 100%, rgba(122, 92, 255, 0.04), transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(47, 107, 255, 0.02), transparent 60%),
    var(--admin-bg-primary);
}

/* =============================================================
   ADMIN OVERLAY (Mobile Sidebar Backdrop)
   ============================================================= */
.admin-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--admin-transition);
}

.admin-overlay.active {
  display: block;
  opacity: 1;
}

/* =============================================================
   ADMIN SIDEBAR
   ============================================================= */
.admin-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--admin-sidebar-width);
  height: 100vh;
  z-index: 100;
  background: var(--admin-bg-sidebar);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-right: 1px solid var(--admin-border-subtle);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform var(--admin-transition);
}

/* Holographic border glow via ::after */
.admin-sidebar::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--admin-cyan) 15%,
    var(--admin-purple) 35%,
    var(--admin-magenta) 55%,
    var(--admin-blue) 75%,
    transparent 100%
  );
  opacity: 0.35;
  filter: blur(1px);
  pointer-events: none;
  animation: sidebarGlow 6s ease-in-out infinite alternate;
}

@keyframes sidebarGlow {
  0% { opacity: 0.2; }
  50% { opacity: 0.45; }
  100% { opacity: 0.25; }
}

/* ── Sidebar Logo ── */
.admin-sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 20px 18px;
  text-decoration: none;
  border-bottom: 1px solid var(--admin-border-subtle);
}

.admin-sidebar-logo img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  background: transparent !important;
  filter:
    drop-shadow(0 0 8px rgba(0, 217, 255, 0.5))
    drop-shadow(0 0 16px rgba(122, 92, 255, 0.3));
}

.admin-sidebar-logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.admin-sidebar-logo-text .brand-name {
  font-family: var(--admin-font-primary);
  font-size: 16px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--admin-cyan), var(--admin-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.admin-sidebar-logo-text .brand-sub {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--admin-text-muted);
}

/* ── Sidebar Nav ── */
.admin-sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--admin-radius-sm);
  color: var(--admin-text-secondary);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--admin-font-body);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--admin-transition);
  border: 1px solid transparent;
  background: transparent;
  white-space: nowrap;
}

.admin-nav-item:hover {
  color: var(--admin-text-primary);
  background: var(--admin-bg-glass);
  border-color: var(--admin-border-subtle);
}

.admin-nav-item.active {
  color: var(--admin-cyan);
  background: rgba(0, 217, 255, 0.08);
  border-color: rgba(0, 217, 255, 0.18);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--admin-cyan), var(--admin-glow-cyan);
}

.admin-nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.admin-nav-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ── Sidebar Footer ── */
.admin-sidebar-footer {
  padding: 16px 18px;
  border-top: 1px solid var(--admin-border-subtle);
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-sidebar-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--admin-cyan), var(--admin-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.admin-sidebar-user {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
  overflow: hidden;
}

.admin-sidebar-user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--admin-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-sidebar-user-role {
  font-size: 11px;
  color: var(--admin-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* =============================================================
   ADMIN MAIN
   ============================================================= */
.admin-main {
  flex: 1;
  margin-left: var(--admin-sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* =============================================================
   ADMIN HEADER
   ============================================================= */
.admin-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--admin-header-height);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 28px;
  background: var(--admin-bg-header);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--admin-border-subtle);
}

.admin-mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border-subtle);
  background: var(--admin-bg-glass);
  color: var(--admin-text-secondary);
  cursor: pointer;
  transition: all var(--admin-transition);
  flex-shrink: 0;
}

.admin-mobile-toggle:hover {
  color: var(--admin-text-primary);
  background: var(--admin-bg-glass-strong);
}

.admin-mobile-toggle svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

.admin-header-title {
  font-family: var(--admin-font-primary);
  font-size: 18px;
  font-weight: 700;
  color: var(--admin-text-primary);
  white-space: nowrap;
}

.admin-header-subtitle {
  font-size: 12px;
  color: var(--admin-text-muted);
  margin-top: 1px;
}

.admin-header-spacer {
  flex: 1;
}

/* ── Admin Search ── */
.admin-search {
  position: relative;
  flex-shrink: 0;
}

.admin-search input {
  width: 220px;
  height: 40px;
  padding: 0 16px 0 38px;
  border-radius: 20px;
  border: 1px solid var(--admin-border-subtle);
  background: var(--admin-bg-glass);
  color: var(--admin-text-primary);
  font-size: 13px;
  font-family: var(--admin-font-body);
  outline: none;
  transition: all var(--admin-transition);
}

.admin-search input::placeholder {
  color: var(--admin-text-muted);
}

.admin-search input:focus {
  border-color: var(--admin-border-active);
  background: var(--admin-bg-glass-strong);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.08), var(--admin-glow-cyan);
  width: 280px;
}

.admin-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--admin-text-muted);
  pointer-events: none;
}

.admin-search-icon svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* ── Header Buttons ── */
.admin-header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border-subtle);
  background: var(--admin-bg-glass);
  color: var(--admin-text-secondary);
  cursor: pointer;
  transition: all var(--admin-transition);
  position: relative;
  flex-shrink: 0;
}

.admin-header-btn:hover {
  color: var(--admin-text-primary);
  background: var(--admin-bg-glass-strong);
  border-color: var(--admin-border-default);
}

.admin-header-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
}

.notif-badge { position: relative; }
.notif-count {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  background: var(--admin-red);
  color: white;
  font-size: 11px;
  font-weight: 900;
  display: grid;
  place-items: center;
  padding: 0 4px;
}

/* =============================================================
   ADMIN CONTENT
   ============================================================= */
.admin-content {
  flex: 1;
  padding: var(--admin-content-padding);
  max-width: var(--admin-content-max);
  width: 100%;
}

/* =============================================================
   ADMIN METRICS GRID
   ============================================================= */
.admin-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.admin-metric-card {
  padding: 20px;
  border-radius: var(--admin-radius-md);
  border: 1px solid var(--admin-border-subtle);
  background: var(--admin-bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--admin-transition);
  position: relative;
  overflow: hidden;
}

.admin-metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--admin-cyan), var(--admin-purple));
  opacity: 0;
  transition: opacity var(--admin-transition);
}

.admin-metric-card:hover {
  border-color: var(--admin-border-default);
  background: var(--admin-bg-glass-hover);
  transform: translateY(-2px);
  box-shadow: var(--admin-glow-hover);
}

.admin-metric-card:hover::before {
  opacity: 1;
}

.admin-metric-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--admin-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 20px;
}

.admin-metric-icon.cyan {
  background: rgba(0, 217, 255, 0.1);
  color: var(--admin-cyan);
  box-shadow: 0 0 12px rgba(0, 217, 255, 0.12);
}

.admin-metric-icon.blue {
  background: rgba(47, 107, 255, 0.1);
  color: var(--admin-blue);
  box-shadow: 0 0 12px rgba(47, 107, 255, 0.12);
}

.admin-metric-icon.purple {
  background: rgba(122, 92, 255, 0.1);
  color: var(--admin-purple);
  box-shadow: 0 0 12px rgba(122, 92, 255, 0.12);
}

.admin-metric-icon.green {
  background: rgba(0, 255, 136, 0.1);
  color: var(--admin-green);
  box-shadow: 0 0 12px rgba(0, 255, 136, 0.12);
}

.admin-metric-icon.magenta {
  background: rgba(176, 38, 255, 0.1);
  color: var(--admin-magenta);
  box-shadow: 0 0 12px rgba(176, 38, 255, 0.12);
}

.admin-metric-icon.orange {
  background: rgba(255, 140, 0, 0.1);
  color: var(--admin-orange);
  box-shadow: 0 0 12px rgba(255, 140, 0, 0.12);
}

.admin-metric-number {
  font-family: var(--admin-font-primary);
  font-size: 28px;
  font-weight: 800;
  color: var(--admin-text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.admin-metric-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--admin-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* =============================================================
   ADMIN SECTION (Glass Card Wrapper)
   ============================================================= */
.admin-section {
  border: 1px solid var(--admin-border-default);
  border-radius: var(--admin-radius-lg);
  background: var(--admin-bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--admin-glow-cyan);
  overflow: hidden;
}

.admin-section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 24px 0;
  flex-wrap: wrap;
}

.admin-section-body {
  padding: 20px 24px 24px;
}

/* =============================================================
   ADMIN TABS
   ============================================================= */
.admin-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 16px 24px 0;
}

.admin-tab-btn {
  min-height: 36px;
  border-radius: var(--admin-radius-sm);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--admin-font-body);
  cursor: pointer;
  transition: all var(--admin-transition);
  border: 1px solid var(--admin-border-subtle);
  background: var(--admin-bg-glass);
  color: var(--admin-text-secondary);
  white-space: nowrap;
}

.admin-tab-btn:hover {
  color: var(--admin-text-primary);
  background: var(--admin-bg-glass-strong);
}

.admin-tab-btn.primary-btn {
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(122, 92, 255, 0.15));
  border-color: rgba(0, 217, 255, 0.35);
  color: var(--admin-cyan);
  font-weight: 700;
  box-shadow: 0 0 16px rgba(0, 217, 255, 0.15), inset 0 0 12px rgba(0, 217, 255, 0.05);
}

.admin-tab-btn.ghost-btn {
  background: var(--admin-bg-glass);
  color: var(--admin-text-secondary);
  border: 1px solid var(--admin-border-subtle);
}

/* =============================================================
   ADMIN FILTERS
   ============================================================= */
.admin-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 12px 24px 0;
}

/* =============================================================
   ADMIN LIST
   ============================================================= */
.admin-list {
  padding: 16px 24px 24px;
  max-height: 600px;
  overflow-y: auto;
}

/* =============================================================
   STUDENT CARD (preserving existing class name)
   ============================================================= */
.student-card {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px;
  margin-bottom: 10px;
  border: 1px solid var(--admin-border-subtle);
  border-radius: var(--admin-radius-md);
  background: var(--admin-bg-glass);
  transition: all var(--admin-transition);
}

.student-card:hover {
  border-color: var(--admin-border-default);
  background: var(--admin-bg-glass-hover);
  box-shadow: var(--admin-glow-hover);
}

.student-card strong {
  color: var(--admin-text-primary);
  font-weight: 700;
  font-size: 15px;
  display: block;
  margin-bottom: 4px;
}

.student-card p {
  font-size: 13px;
  color: var(--admin-text-secondary);
  line-height: 1.5;
  margin: 2px 0;
}

.student-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 170px;
  flex-shrink: 0;
}

/* =============================================================
   BUTTONS — Neon Styling
   ============================================================= */
.primary-btn,
.link-btn {
  min-height: 44px;
  border: none;
  border-radius: var(--admin-radius-md);
  padding: 11px 22px;
  color: white;
  font-weight: 700;
  font-family: var(--admin-font-body);
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--admin-transition);
  background: linear-gradient(135deg, var(--admin-cyan), var(--admin-purple));
  box-shadow: 0 0 15px rgba(0, 217, 255, 0.15);
  white-space: nowrap;
}

.primary-btn:hover,
.link-btn:hover {
  box-shadow: 0 0 30px rgba(0, 217, 255, 0.3);
  transform: translateY(-1px);
  color: white;
}

.secondary-btn {
  min-height: 44px;
  border: none;
  border-radius: var(--admin-radius-md);
  padding: 11px 22px;
  color: white;
  font-weight: 700;
  font-family: var(--admin-font-body);
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--admin-transition);
  background: linear-gradient(135deg, var(--admin-blue), var(--admin-purple));
  box-shadow: 0 0 15px rgba(47, 107, 255, 0.15);
  white-space: nowrap;
}

.secondary-btn:hover {
  box-shadow: 0 0 30px rgba(47, 107, 255, 0.3);
  transform: translateY(-1px);
  color: white;
}

.ghost-btn {
  min-height: 44px;
  border: 1px solid var(--admin-border-subtle);
  border-radius: var(--admin-radius-md);
  padding: 11px 22px;
  color: var(--admin-text-secondary);
  font-weight: 600;
  font-family: var(--admin-font-body);
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--admin-bg-glass);
  transition: all var(--admin-transition);
  white-space: nowrap;
}

.ghost-btn:hover {
  color: var(--admin-text-primary);
  border-color: var(--admin-border-default);
  background: var(--admin-bg-glass-strong);
}

.danger-btn {
  min-height: 44px;
  border: 1px solid rgba(255, 51, 102, 0.25);
  border-radius: var(--admin-radius-md);
  padding: 11px 22px;
  color: var(--admin-red);
  font-weight: 600;
  font-family: var(--admin-font-body);
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(255, 51, 102, 0.08);
  transition: all var(--admin-transition);
  white-space: nowrap;
}

.danger-btn:hover {
  background: rgba(255, 51, 102, 0.15);
  border-color: rgba(255, 51, 102, 0.4);
  box-shadow: 0 0 20px rgba(255, 51, 102, 0.15);
}

/* ── Small Variant ── */
.small {
  min-height: 36px !important;
  padding: 8px 14px !important;
  border-radius: var(--admin-radius-sm) !important;
  font-size: 13px !important;
}

/* =============================================================
   WARNING
   ============================================================= */
.warning {
  color: var(--admin-yellow);
  border: 1px solid rgba(255, 214, 0, 0.2);
  border-radius: var(--admin-radius-md);
  padding: 16px 20px;
  background: rgba(255, 214, 0, 0.04);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
}

/* =============================================================
   STATUS & VALIDATION
   ============================================================= */
.status {
  color: var(--admin-green);
  font-weight: 700;
  min-height: 24px;
  font-size: 14px;
}

.status-error {
  color: var(--admin-red) !important;
}

.validation-box {
  border: 1px solid var(--admin-border-default);
  border-radius: var(--admin-radius-lg);
  padding: 20px;
  background: var(--admin-bg-glass);
}

/* =============================================================
   MODAL
   ============================================================= */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(2, 3, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: modalFadeIn 0.25s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal.hidden { display: none; }

.modal-box {
  width: min(760px, 100%);
  border: 1px solid var(--admin-border-active);
  border-radius: var(--admin-radius-xl);
  background: linear-gradient(145deg, rgba(5, 12, 32, 0.98), rgba(10, 18, 45, 0.96));
  box-shadow: var(--admin-glow-intense);
  padding: 28px;
  position: relative;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
}

.modal-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 18px 0;
}

.modal-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* =============================================================
   MINI CARD / CONFIG
   ============================================================= */
.mini-card {
  border: 1px solid var(--admin-border-subtle);
  border-radius: var(--admin-radius-md);
  padding: 16px;
  background: var(--admin-bg-glass);
}

.mini-card strong {
  display: block;
  color: var(--admin-cyan);
  font-weight: 700;
  margin-bottom: 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mini-card span {
  font-size: 15px;
  color: var(--admin-text-primary);
  font-weight: 600;
}

.config-form {
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

.config-block {
  display: grid;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--admin-border-subtle);
  border-radius: var(--admin-radius-md);
  background: var(--admin-bg-glass);
  margin-bottom: 14px;
}

.config-block h3 {
  margin: 0 0 4px;
  color: var(--admin-cyan);
  font-size: 16px;
}

/* =============================================================
   FORMS — Glass Dark Inputs
   ============================================================= */
.form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.field-label {
  display: grid;
  gap: 8px;
  color: var(--admin-cyan);
  font-weight: 600;
  text-align: left;
  font-size: 14px;
}

.field-label span {
  color: var(--admin-cyan);
  font-weight: 600;
}

input, select, textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--admin-radius-md);
  border: 1px solid var(--admin-border-subtle);
  background: var(--admin-bg-input);
  color: var(--admin-text-primary);
  font-size: 15px;
  font-family: var(--admin-font-body);
  outline: none;
  transition: all var(--admin-transition);
}

input::placeholder, textarea::placeholder {
  color: var(--admin-text-muted);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--admin-border-active);
  background: var(--admin-bg-glass-strong);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.08), var(--admin-glow-cyan);
}

select option {
  color: #ccc;
  background: #0a0e1a;
}

textarea {
  min-height: 92px;
  resize: vertical;
}

/* ── Checkbox ── */
.check {
  display: flex;
  gap: 10px;
  color: var(--admin-text-secondary);
  text-align: left;
  font-size: 15px;
  cursor: pointer;
  align-items: center;
}

.check input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--admin-cyan);
  cursor: pointer;
  flex-shrink: 0;
}

/* =============================================================
   ADMIN EMPTY STATE
   ============================================================= */
.admin-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  gap: 16px;
}

.admin-empty-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--admin-bg-glass);
  border: 1px solid var(--admin-border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: var(--admin-glow-cyan);
}

.admin-empty-state h3 {
  color: var(--admin-text-primary);
  font-size: 18px;
  font-weight: 700;
}

.admin-empty-state p {
  color: var(--admin-text-muted);
  font-size: 14px;
  max-width: 320px;
}

/* =============================================================
   ADMIN LOADING
   ============================================================= */
.admin-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 40px;
}

.admin-loading-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--admin-cyan);
  box-shadow: 0 0 8px var(--admin-cyan);
  animation: loadingBounce 1.4s ease-in-out infinite;
}

.admin-loading-dot:nth-child(2) {
  animation-delay: 0.2s;
  opacity: 0.7;
}

.admin-loading-dot:nth-child(3) {
  animation-delay: 0.4s;
  opacity: 0.4;
}

@keyframes loadingBounce {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.4;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* =============================================================
   TOPBAR / TOP-ACTIONS (Legacy Compat)
   ============================================================= */
.topbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.top-actions, .filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.voucher-topbar {
  margin: 18px 0;
}

/* =============================================================
   LEGACY GRID (JS renders .grid for metrics)
   ============================================================= */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 0 0 24px;
}

/* =============================================================
   LOGO TRANSPARENCY (No black box)
   ============================================================= */
.logo-oficial,
.main-logo,
.mini-logo,
img[src*="logo"] {
  background: transparent !important;
  object-fit: contain;
}

/* =============================================================
   LINKS
   ============================================================= */
a {
  color: var(--admin-cyan);
  text-decoration: none;
  transition: color var(--admin-transition);
}

a:hover {
  color: #fff;
}

/* =============================================================
   CUSTOM SCROLLBAR
   ============================================================= */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 217, 255, 0.15);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 217, 255, 0.3);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 217, 255, 0.15) transparent;
}

/* =============================================================
   RESPONSIVE — 1024px (Tablet: sidebar hidden, toggle shown)
   ============================================================= */
@media (max-width: 1024px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-sidebar.open {
    transform: translateX(0);
  }

  .admin-main {
    margin-left: 0;
  }

  .admin-mobile-toggle {
    display: flex;
  }

  .admin-search input {
    width: 180px;
  }

  .admin-search input:focus {
    width: 220px;
  }

  .admin-section-header {
    padding: 18px 18px 0;
  }

  .admin-tabs {
    padding: 14px 18px 0;
  }

  .admin-filters {
    padding: 10px 18px 0;
  }

  .admin-list {
    padding: 14px 18px 18px;
  }

  .admin-section-body {
    padding: 16px 18px 18px;
  }

  .admin-content {
    padding: 20px;
  }

  .admin-header {
    padding: 0 18px;
  }
}

/* =============================================================
   RESPONSIVE — 768px (Stacked layout)
   ============================================================= */
@media (max-width: 768px) {
  .admin-content {
    padding: 14px;
  }

  .admin-header {
    padding: 0 14px;
    gap: 10px;
  }

  .admin-header-title {
    font-size: 15px;
  }

  .admin-search {
    display: none;
  }

  .admin-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .admin-metric-number {
    font-size: 22px;
  }

  .admin-metric-card {
    padding: 14px;
  }

  .admin-section-header {
    padding: 14px 14px 0;
    flex-direction: column;
  }

  .admin-tabs {
    padding: 12px 14px 0;
  }

  .admin-filters {
    padding: 8px 14px 0;
  }

  .admin-list {
    padding: 12px 14px 14px;
    max-height: none;
  }

  .admin-section-body {
    padding: 14px;
  }

  .student-card,
  .topbar {
    flex-direction: column;
  }

  .student-actions {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    min-width: 0;
  }

  .student-actions > * {
    flex: 1;
    min-width: 120px;
  }

  .modal-summary {
    grid-template-columns: 1fr;
  }

  .modal-close {
    position: static;
    margin-bottom: 12px;
  }

  .modal-box {
    padding: 20px;
    border-radius: var(--admin-radius-lg);
  }

  .config-block {
    padding: 14px;
  }

  .filters {
    margin: 8px 0;
  }

  .voucher-topbar {
    margin: 12px 0;
  }
}

/* =============================================================
   RESPONSIVE — 480px (Compact)
   ============================================================= */
@media (max-width: 480px) {
  .admin-content {
    padding: 10px;
  }

  .admin-header {
    padding: 0 10px;
    height: 56px;
  }

  .admin-metrics {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .admin-metric-card {
    padding: 12px;
  }

  .admin-metric-icon {
    width: 34px;
    height: 34px;
    font-size: 16px;
    margin-bottom: 10px;
  }

  .admin-metric-number {
    font-size: 20px;
  }

  .admin-metric-label {
    font-size: 10px;
  }

  .admin-tabs {
    gap: 6px;
    padding: 10px 10px 0;
  }

  .admin-filters {
    gap: 4px;
    padding: 6px 10px 0;
  }

  .admin-list {
    padding: 10px;
  }

  .admin-section-body {
    padding: 10px;
  }

  .student-card {
    padding: 12px;
    gap: 10px;
  }

  .student-actions {
    gap: 6px;
  }

  .student-actions > * {
    min-width: 100px;
    font-size: 12px;
  }

  .primary-btn,
  .secondary-btn,
  .ghost-btn,
  .danger-btn,
  .link-btn {
    font-size: 13px;
    padding: 10px 16px;
    min-height: 38px;
  }

  .small {
    min-height: 32px !important;
    padding: 6px 10px !important;
    font-size: 12px !important;
  }

  .warning {
    padding: 12px 14px;
    font-size: 13px;
  }

  .modal {
    padding: 10px;
  }

  .modal-box {
    padding: 16px;
  }

  .config-form textarea {
    min-height: 70px;
  }
}

/* =============================================================
   PREFERS REDUCED MOTION
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    transition-property: none !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .admin-sidebar::after {
    animation: none;
    opacity: 0.3;
  }

  .admin-loading-dot {
    animation: none;
    opacity: 0.6;
  }

  .modal {
    animation: none;
  }

  .modal-box {
    animation: none;
  }
}


/* =============================================================
   ETAPA VISUAL 9 — ANALYTICS PREMIUM DO PAINEL ADMIN
   Escopo: camada visual de métricas, gráficos leves e alertas.
   ============================================================= */
.admin-analytics-shell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px;
  margin: 0 0 8px;
  border: 1px solid rgba(0, 217, 255, 0.16);
  border-radius: 28px;
  background:
    radial-gradient(circle at 12% 8%, rgba(0, 217, 255, 0.16), transparent 34%),
    radial-gradient(circle at 86% 10%, rgba(122, 92, 255, 0.18), transparent 32%),
    linear-gradient(135deg, rgba(5, 10, 26, 0.96), rgba(10, 13, 35, 0.84));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.admin-analytics-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 217, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.95), transparent 85%);
}

.admin-analytics-header,
.admin-analytics-grid,
.admin-analytics-panels,
.admin-alert-grid {
  position: relative;
  z-index: 1;
}

.admin-analytics-header {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 16px;
}

.admin-analytics-header h1 {
  margin: 4px 0 6px;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--admin-text-primary);
  text-shadow: 0 0 30px rgba(0, 217, 255, 0.25);
}

.admin-platform-status {
  min-width: 230px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.admin-platform-status span,
.admin-platform-status small,
.admin-analytics-hint,
.admin-panel-head small,
.admin-mini-kpis span,
.admin-alert-card small {
  color: var(--admin-text-secondary);
}

.admin-platform-status strong {
  font-size: 21px;
  color: var(--admin-text-primary);
}

.admin-platform-status.ok { border-color: rgba(0, 255, 136, 0.28); box-shadow: inset 0 0 24px rgba(0, 255, 136, 0.07); }
.admin-platform-status.warning { border-color: rgba(255, 214, 0, 0.32); box-shadow: inset 0 0 24px rgba(255, 214, 0, 0.07); }
.admin-platform-status.neutral { border-color: rgba(0, 217, 255, 0.24); }

.admin-analytics-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.admin-analytics-card,
.admin-analytics-panel,
.admin-alert-card {
  border: 1px solid rgba(255, 255, 255, 0.11);
  background: linear-gradient(180deg, rgba(255,255,255,0.075), rgba(255,255,255,0.035));
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.26), inset 0 1px 0 rgba(255,255,255,0.05);
  backdrop-filter: blur(12px);
}

.admin-analytics-card {
  min-height: 190px;
  padding: 18px;
  border-radius: 22px;
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.admin-analytics-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 217, 255, 0.34);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.32), 0 0 28px rgba(0, 217, 255, 0.08);
}

.admin-analytics-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
}

.admin-analytics-icon {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--admin-cyan);
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid rgba(0, 217, 255, 0.2);
}

.admin-analytics-icon svg,
.admin-nav-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.admin-analytics-indicator {
  padding: 5px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(232, 236, 248, .84);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-analytics-number {
  display: block;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1;
  color: var(--admin-text-primary);
  letter-spacing: -0.045em;
}

.admin-analytics-label {
  display: block;
  margin-top: 9px;
  color: var(--admin-text-primary);
  font-size: 13px;
  font-weight: 900;
}

.admin-analytics-hint {
  margin: 7px 0 0;
  font-size: 11px;
  line-height: 1.45;
}

.admin-analytics-card.cyan .admin-analytics-icon { color: var(--admin-cyan); background: rgba(0,217,255,.10); border-color: rgba(0,217,255,.22); box-shadow: 0 0 26px rgba(0,217,255,.10); }
.admin-analytics-card.blue .admin-analytics-icon { color: var(--admin-blue); background: rgba(47,107,255,.12); border-color: rgba(47,107,255,.24); }
.admin-analytics-card.green .admin-analytics-icon { color: var(--admin-green); background: rgba(0,255,136,.10); border-color: rgba(0,255,136,.22); }
.admin-analytics-card.purple .admin-analytics-icon { color: var(--admin-purple); background: rgba(122,92,255,.12); border-color: rgba(122,92,255,.24); }
.admin-analytics-card.magenta .admin-analytics-icon { color: var(--admin-magenta); background: rgba(176,38,255,.12); border-color: rgba(176,38,255,.24); }
.admin-analytics-card.orange .admin-analytics-icon { color: var(--admin-orange); background: rgba(255,140,0,.11); border-color: rgba(255,140,0,.24); }

.admin-analytics-panels {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.15fr) minmax(280px, .85fr);
  gap: 14px;
}

.admin-analytics-panel {
  min-width: 0;
  padding: 18px;
  border-radius: 24px;
}

.admin-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.admin-panel-head span {
  display: block;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--admin-cyan);
}

.admin-panel-head strong {
  display: block;
  margin-top: 4px;
  color: var(--admin-text-primary);
  font-size: 16px;
}

.admin-bars,
.admin-progress-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.admin-bar-item {
  display: grid;
  grid-template-columns: minmax(116px, .6fr) minmax(120px, 1fr) 42px;
  align-items: center;
  gap: 12px;
  color: var(--admin-text-secondary);
  font-size: 12px;
}

.admin-bar-item strong,
.admin-chart-row-head strong {
  color: var(--admin-text-primary);
}

.admin-bar-track,
.admin-progress-track {
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-bar-track i,
.admin-progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
}

.admin-bar-track .cyan,
.admin-progress-track .cyan { background: linear-gradient(90deg, var(--admin-cyan), var(--admin-blue)); box-shadow: 0 0 18px rgba(0,217,255,.24); }
.admin-bar-track .green,
.admin-progress-track .green { background: linear-gradient(90deg, var(--admin-green), var(--admin-cyan)); box-shadow: 0 0 18px rgba(0,255,136,.20); }
.admin-bar-track .orange,
.admin-progress-track .orange { background: linear-gradient(90deg, var(--admin-orange), var(--admin-yellow)); box-shadow: 0 0 18px rgba(255,140,0,.20); }
.admin-bar-track .purple,
.admin-progress-track .purple,
.admin-progress-track .blue { background: linear-gradient(90deg, var(--admin-purple), var(--admin-cyan)); box-shadow: 0 0 18px rgba(122,92,255,.22); }

.admin-chart-row-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--admin-text-secondary);
  font-size: 12px;
}

.admin-donut-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.admin-orbit-chart {
  --p: 0;
  width: 158px;
  height: 158px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 2px auto 16px;
  background:
    radial-gradient(circle, rgba(5, 10, 26, 0.94) 0 55%, transparent 56%),
    conic-gradient(var(--admin-cyan) calc(var(--p) * 1%), rgba(255,255,255,.08) 0);
  box-shadow: inset 0 0 28px rgba(0,0,0,.35), 0 0 34px rgba(0,217,255,.10);
}

.admin-orbit-chart div {
  width: 116px;
  height: 116px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
}

.admin-orbit-chart strong {
  font-size: 28px;
  color: var(--admin-text-primary);
}

.admin-orbit-chart span {
  max-width: 84px;
  font-size: 10px;
  line-height: 1.25;
  color: var(--admin-text-secondary);
}

.admin-mini-kpis {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.admin-mini-kpis span {
  padding: 10px;
  text-align: center;
  border-radius: 14px;
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.08);
  font-size: 11px;
}

.admin-mini-kpis b {
  display: block;
  color: var(--admin-text-primary);
  font-size: 17px;
}

.admin-alert-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.admin-alert-card {
  padding: 16px;
  border-radius: 20px;
  min-width: 0;
}

.admin-alert-card span {
  display: block;
  min-height: 34px;
  color: var(--admin-text-secondary);
  font-size: 12px;
  line-height: 1.35;
}

.admin-alert-card strong {
  display: block;
  margin: 7px 0 3px;
  color: var(--admin-text-primary);
  font-size: 30px;
  letter-spacing: -0.04em;
}

.admin-alert-card.cyan { border-color: rgba(0,217,255,.20); }
.admin-alert-card.purple { border-color: rgba(122,92,255,.22); }
.admin-alert-card.green { border-color: rgba(0,255,136,.20); }
.admin-alert-card.orange { border-color: rgba(255,140,0,.22); }

.admin-analytics-empty {
  padding: 18px;
  border-radius: 18px;
  text-align: center;
  color: var(--admin-text-secondary);
  border: 1px dashed rgba(0, 217, 255, 0.18);
  background: rgba(0, 217, 255, 0.035);
}

@media (max-width: 1280px) {
  .admin-analytics-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .admin-analytics-panels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-donut-panel { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .admin-analytics-shell { padding: 16px; border-radius: 22px; gap: 16px; }
  .admin-analytics-header { flex-direction: column; }
  .admin-platform-status { min-width: 0; }
  .admin-analytics-grid,
  .admin-analytics-panels,
  .admin-alert-grid { grid-template-columns: 1fr; }
  .admin-analytics-card { min-height: auto; }
  .admin-bar-item { grid-template-columns: 1fr; gap: 7px; }
  .admin-panel-head { flex-direction: column; }
  .admin-mini-kpis { grid-template-columns: 1fr; }
}

@media (max-width: 390px) {
  .admin-analytics-shell { padding: 12px; margin-left: -2px; margin-right: -2px; }
  .admin-analytics-card,
  .admin-analytics-panel,
  .admin-alert-card { padding: 14px; border-radius: 18px; }
  .admin-analytics-number { font-size: 28px; }
  .admin-orbit-chart { width: 136px; height: 136px; }
  .admin-orbit-chart div { width: 100px; height: 100px; }
}