/* ==========================================
   Intune Patching & OS Compliance Dashboard
   Created by Darren Reevell
   Confidential — For internal use only
   ========================================== */

:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-alt: #f9fafb;
  --border: #e2e5ea;
  --text: #1a1d23;
  --text-secondary: #5f6774;
  --text-muted: #8b919e;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --green: #16a34a;
  --green-bg: #dcfce7;
  --amber: #d97706;
  --amber-bg: #fef3c7;
  --red: #dc2626;
  --red-bg: #fee2e2;
  --sidebar-bg: #1a1d23;
  --sidebar-text: #cdd0d6;
  --sidebar-hover: #2a2d35;
  --sidebar-active: #2563eb;
  --header-bg: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --radius: 10px;
  --radius-sm: 6px;
  --transition: 0.2s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body.dark {
  --bg: #0f1117;
  --surface: #1a1d25;
  --surface-alt: #22252e;
  --border: #2e323c;
  --text: #e8eaed;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --header-bg: #1a1d25;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --green-bg: rgba(22,163,74,0.15);
  --amber-bg: rgba(217,119,6,0.15);
  --red-bg: rgba(220,38,38,0.15);
}

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

html {
  height: 100%;
  overflow: hidden;
}

body {
  height: 100%;
  overflow: hidden;
  margin: 0;
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums lining-nums;
  /* LAYOUT GRID */
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-rows: 56px 1fr 32px;
  max-height: 100vh;
  max-height: 100dvh;
}

/* ---- HEADER ---- */
.header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  z-index: 20;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo { color: var(--accent); }
.header-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.header-version {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-alt);
  padding: 2px 8px;
  border-radius: 10px;
  letter-spacing: 0.02em;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.refresh-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--green);
  background: var(--green-bg);
  padding: 4px 10px;
  border-radius: 20px;
}
.theme-toggle {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.theme-toggle:hover { background: var(--surface-alt); }

/* ---- SIDEBAR ---- */
.sidebar {
  grid-row: 2;
  background: var(--sidebar-bg);
  padding: 16px 12px;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--sidebar-text);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background var(--transition), color var(--transition);
}
.nav-btn:hover { background: var(--sidebar-hover); color: #fff; }
.nav-btn.active {
  background: var(--sidebar-active);
  color: #fff;
}
.nav-separator {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 12px 0;
}
.upload-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.upload-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 0 4px;
}
.upload-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px dashed rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--sidebar-text);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
  font-family: var(--font);
}
.upload-btn:hover { border-color: var(--accent); color: #fff; }
.file-status {
  font-size: 11px;
  color: var(--text-muted);
  padding: 0 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-status.loaded { color: var(--green); }
.analyse-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
}
.analyse-btn:hover { background: var(--accent-hover); }
.analyse-btn:disabled { opacity: 0.4; cursor: not-allowed; }


.lifecycle-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 4px;
}
.lifecycle-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.lifecycle-source {
  font-size: 12px;
  color: var(--sidebar-text);
  font-weight: 500;
}
.lifecycle-updated {
  font-size: 11px;
  color: var(--text-muted);
}

/* ---- MAIN ---- */
.main {
  grid-column: 2;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  padding: 24px;
  background: var(--bg);
  min-height: 0; /* critical for grid children to respect overflow */
}

/* ---- ALERT BANNER ---- */
.alert-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--amber-bg);
  color: var(--amber);
  border: 1px solid rgba(217,119,6,0.25);
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 500;
}
.alert-banner.critical {
  background: var(--red-bg);
  color: var(--red);
  border-color: rgba(220,38,38,0.25);
}
.alert-dismiss {
  margin-left: auto;
  background: none;
  border: none;
  color: inherit;
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
}

/* ---- TABS ---- */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ---- EMPTY STATE ---- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
  color: var(--text-secondary);
}
.empty-state h2 {
  font-size: 18px;
  font-weight: 600;
  margin: 16px 0 8px;
  color: var(--text);
}
.empty-state p {
  max-width: 380px;
  font-size: 13px;
  line-height: 1.6;
}

/* ---- KPI CARDS ---- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}
.kpi-card:hover { box-shadow: var(--shadow-md); }
.kpi-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.kpi-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: 6px;
}
.kpi-export {
  margin-top: 12px;
}
.kpi-card.kpi-green { border-left: 4px solid var(--green); }
.kpi-card.kpi-green .kpi-value { color: var(--green); }
.kpi-card.kpi-amber { border-left: 4px solid var(--amber); }
.kpi-card.kpi-amber .kpi-value { color: var(--amber); }
.kpi-card.kpi-red { border-left: 4px solid var(--red); }
.kpi-card.kpi-red .kpi-value { color: var(--red); }

/* ---- CHART CARDS ---- */
.chart-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  min-height: 0;
  overflow: hidden;
}
.chart-container {
  position: relative;
  width: 100%;
  height: 260px;
  max-height: 260px;
}
.chart-container canvas {
  max-height: 100%;
}
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.chart-header h3 {
  font-size: 14px;
  font-weight: 600;
}

/* ---- EXPORT BUTTON ---- */
.export-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.export-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---- TABLES ---- */
.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.table-scroll {
  overflow-x: auto;
  max-height: 360px;
  overflow-y: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead {
  position: sticky;
  top: 0;
  z-index: 1;
}
th {
  background: var(--surface-alt);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tr:hover td { background: var(--surface-alt); }

/* ---- STATUS BADGES ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-amber { background: var(--amber-bg); color: var(--amber); }
.badge-red { background: var(--red-bg); color: var(--red); }

/* ---- EXECUTIVE ---- */
.exec-headline {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.exec-headline h2 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.exec-headline p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.exec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.exec-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}
.exec-card h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}

/* Priority list */
.priority-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.priority-item:last-child { border-bottom: none; }
.priority-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}
.priority-icon.red { background: var(--red); }
.priority-icon.amber { background: var(--amber); }
.priority-icon.green { background: var(--green); }

/* ISO grid */
.iso-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  align-items: center;
}
.iso-row:last-child { border-bottom: none; }

/* EOS alerts */
.eos-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.eos-item:last-child { border-bottom: none; }
.eos-label { font-weight: 500; }
.eos-date { color: var(--text-secondary); }
.eos-count { font-weight: 700; }

/* ---- LIFECYCLE PAGE ---- */
.lifecycle-page { max-width: 960px; }
.lifecycle-header-section {
  margin-bottom: 24px;
}
.lifecycle-header-section h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.lifecycle-header-section p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.lifecycle-header-section a {
  color: var(--accent);
  text-decoration: none;
}
.lifecycle-header-section a:hover { text-decoration: underline; }

/* ---- FOOTER ---- */
.footer {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-top: 1px solid rgba(255,255,255,0.06);
  z-index: 20;
}
.footer-left {
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-brand {
  font-weight: 600;
  color: #fff;
}
.footer-sep {
  opacity: 0.3;
}
.footer-confidential {
  color: var(--amber);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 10px;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  body {
    grid-template-columns: 1fr;
    grid-template-rows: 56px auto 1fr;
  }
  .sidebar {
    grid-row: 2;
    flex-direction: row;
    overflow-x: auto;
    padding: 8px 12px;
    gap: 8px;
  }
  .nav-separator, .upload-section, .lifecycle-info { display: none; }
  .main { grid-column: 1; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .chart-row { grid-template-columns: 1fr; }
  .exec-grid { grid-template-columns: 1fr; }
}