/**
 * GreenOS Modern UI — Command Center overlay (dark + light).
 * Frontend-only. Keeps existing gos-* structure and APIs.
 */

:root,
html[data-theme="dark"] {
  --gos-radius: 14px;
  --gos-radius-sm: 10px;
  --gos-glow: 0 0 0 1px rgba(16, 185, 129, 0.16), 0 18px 48px rgba(0, 0, 0, 0.35);
  --gos-sidebar-w: 252px;
  --gos-topbar-h: 68px;
  --gos-footer-h: 34px;
  --gos-bg: #070b14;
  --gos-surface: #0e1524;
  --gos-surface2: #151e31;
  --gos-surface3: #1b263c;
  --gos-border: #24314a;
  --gos-text: #eef3fb;
  --gos-muted: #8fa0bb;
  --gos-accent: #12d48a;
  --gos-accent-soft: rgba(18, 212, 138, 0.14);
  --gos-danger: #f87171;
  --gos-warn: #fbbf24;
  --gos-info: #60a5fa;
  --gos-purple: #a78bfa;
  --gos-font: "Segoe UI", Inter, "SF Pro Display", system-ui, -apple-system, sans-serif;
}

html[data-theme="light"] {
  --gos-glow: 0 0 0 1px rgba(5, 150, 105, 0.1), 0 14px 36px rgba(15, 23, 42, 0.08);
  --gos-bg: #eef3f8;
  --gos-surface: #ffffff;
  --gos-surface2: #f4f7fb;
  --gos-surface3: #e8eef6;
  --gos-border: #d3dce8;
  --gos-text: #102033;
  --gos-muted: #5d6f88;
  --gos-accent: #059669;
  --gos-accent-soft: rgba(5, 150, 105, 0.12);
  --gos-danger: #dc2626;
  --gos-warn: #d97706;
  --gos-info: #2563eb;
  --gos-purple: #7c3aed;
}

body {
  font-family: var(--gos-font);
}

.gos-app {
  background:
    radial-gradient(1100px 480px at 8% -12%, rgba(18, 212, 138, 0.09), transparent 55%),
    radial-gradient(900px 420px at 92% 0%, rgba(96, 165, 250, 0.06), transparent 50%),
    var(--gos-bg);
}

html[data-theme="light"] .gos-app {
  background:
    radial-gradient(1000px 420px at 10% -10%, rgba(5, 150, 105, 0.08), transparent 55%),
    var(--gos-bg);
}

/* Sidebar */
.gos-sidebar {
  width: var(--gos-sidebar-w);
  background: linear-gradient(180deg, #0b1220 0%, #090f1a 100%);
  border-right-color: var(--gos-border);
}

html[data-theme="light"] .gos-sidebar {
  background: linear-gradient(180deg, #fff 0%, #f7fafc 100%);
}

.gos-sidebar-brand {
  padding: 1.05rem 1rem;
  gap: 0.85rem;
}

.gos-sidebar-brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: contain;
  background: #07131c;
  box-shadow: 0 0 0 1px rgba(18, 212, 138, 0.35), 0 8px 18px rgba(0, 0, 0, 0.28);
}

.gos-sidebar-brand strong {
  font-size: 0.98rem;
  letter-spacing: 0.01em;
}

.gos-sidebar-brand span {
  color: var(--gos-accent) !important;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.68rem !important;
}

.gos-nav {
  padding: 0.75rem 0.65rem 1rem;
}

.gos-nav-section {
  margin: 0.85rem 0.55rem 0.35rem;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gos-muted);
  opacity: 0.9;
}

.gos-nav-item {
  border-radius: 12px;
  padding: 0.68rem 0.78rem;
  margin-bottom: 0.25rem;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.gos-nav-item.is-active {
  background: linear-gradient(90deg, rgba(18, 212, 138, 0.22), rgba(18, 212, 138, 0.05)) !important;
  color: var(--gos-accent) !important;
  box-shadow: inset 3px 0 0 var(--gos-accent);
  font-weight: 750;
}

.gos-sidebar-foot {
  margin-top: auto;
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--gos-border);
  font-size: 0.72rem;
  color: var(--gos-muted);
  line-height: 1.35;
}

.gos-sidebar-foot strong {
  display: block;
  color: var(--gos-accent);
  margin-bottom: 0.15rem;
  font-size: 0.74rem;
}

/* Topbar */
.gos-main {
  padding-bottom: var(--gos-footer-h);
}

.gos-topbar {
  height: var(--gos-topbar-h);
  background: color-mix(in srgb, var(--gos-surface) 86%, transparent);
  backdrop-filter: blur(14px);
  gap: 0.8rem;
}

.gos-topbar-title {
  font-weight: 800;
  letter-spacing: -0.01em;
}

.gos-search input {
  border-radius: 999px;
  background: var(--gos-surface2);
}

.gos-search input:focus {
  outline: none;
  border-color: var(--gos-accent);
  box-shadow: 0 0 0 3px var(--gos-accent-soft);
}

.gos-icon-btn {
  border-radius: 12px;
  transition: transform 0.12s ease, border-color 0.15s ease;
}

.gos-icon-btn:hover {
  transform: translateY(-1px);
}

.gos-presence-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(18, 212, 138, 0.35);
  background: var(--gos-accent-soft);
  color: var(--gos-accent);
  font-size: 0.74rem;
  font-weight: 750;
  white-space: nowrap;
}

.gos-presence-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gos-accent);
  box-shadow: 0 0 0 4px rgba(18, 212, 138, 0.18);
}

.gos-user-chip {
  border-radius: 999px;
  padding: 0.25rem 0.7rem 0.25rem 0.25rem;
  gap: 0.55rem;
  max-width: 220px;
}

.gos-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #04140e;
  background: linear-gradient(135deg, #34d399, #12d48a);
  flex-shrink: 0;
}

.gos-user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}

.gos-user-meta strong {
  font-size: 0.8rem;
  color: var(--gos-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 130px;
}

.gos-user-meta span {
  font-size: 0.66rem;
  color: var(--gos-muted);
}

.gos-content {
  padding: 1.1rem 1.2rem 1.45rem;
}

.gos-status-bar {
  position: fixed;
  left: var(--gos-sidebar-w);
  right: 0;
  bottom: 0;
  height: var(--gos-footer-h);
  z-index: 35;
  display: none;
  align-items: center;
  gap: 1rem;
  padding: 0 1rem;
  background: color-mix(in srgb, var(--gos-surface) 94%, #000);
  border-top: 1px solid var(--gos-border);
  font-size: 0.72rem;
  color: var(--gos-muted);
}

#app-screen:not(.hidden) ~ .gos-status-bar,
#app-screen:not(.hidden) .gos-status-bar {
  display: flex;
}

.gos-status-bar .ok {
  color: var(--gos-accent);
  font-weight: 750;
}

.gos-status-bar .brand {
  margin-left: auto;
  color: var(--gos-text);
  font-weight: 650;
}

@media (max-width: 900px) {
  .gos-status-bar { left: 0; }
  .gos-presence-pill { display: none; }
}

/* Command Center dashboard */
.gos-cc {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gos-cc-hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.gos-cc-hero h1 {
  margin: 0;
  font-size: 1.55rem;
  letter-spacing: -0.02em;
}

.gos-cc-hero p {
  margin: 0.35rem 0 0;
  color: var(--gos-muted);
  max-width: 52rem;
}

.gos-cc-kpis {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.75rem;
}

.gos-kpi {
  background: var(--gos-surface);
  border: 1px solid var(--gos-border);
  border-radius: var(--gos-radius);
  padding: 0.9rem 0.95rem;
  box-shadow: var(--gos-glow);
  min-height: 102px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  position: relative;
  overflow: hidden;
}

.gos-kpi::after {
  content: "";
  position: absolute;
  inset: auto -20% -45% auto;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--gos-accent-soft), transparent 70%);
  pointer-events: none;
}

.gos-kpi .label {
  font-size: 0.7rem;
  color: var(--gos-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.gos-kpi .value {
  font-size: 1.7rem;
  font-weight: 850;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.gos-kpi .delta {
  font-size: 0.74rem;
  color: var(--gos-muted);
}

.gos-kpi.tone-green .value { color: var(--gos-accent); }
.gos-kpi.tone-blue .value { color: var(--gos-info); }
.gos-kpi.tone-warn .value { color: var(--gos-warn); }
.gos-kpi.tone-purple .value { color: var(--gos-purple); }
.gos-kpi.tone-danger .value { color: var(--gos-danger); }

.gos-cc-mid {
  display: grid;
  grid-template-columns: 1.55fr 0.85fr 0.9fr;
  gap: 0.85rem;
}

.gos-panel {
  background: var(--gos-surface);
  border: 1px solid var(--gos-border);
  border-radius: var(--gos-radius);
  box-shadow: var(--gos-glow);
  padding: 1rem;
}

.gos-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.gos-panel-head h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 800;
}

.gos-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.gos-chip {
  border: 1px solid var(--gos-border);
  background: var(--gos-surface2);
  color: var(--gos-muted);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.66rem;
  font-weight: 750;
}

.gos-chip.is-on {
  color: var(--gos-accent);
  border-color: rgba(18, 212, 138, 0.4);
  background: var(--gos-accent-soft);
}

.gos-chart-wrap {
  height: 210px;
}

.gos-chart-wrap svg {
  width: 100%;
  height: 100%;
  display: block;
}

.gos-donut-wrap {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 0.85rem;
  align-items: center;
}

.gos-donut {
  width: 140px;
  height: 140px;
  position: relative;
}

.gos-donut svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gos-donut-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.gos-donut-center strong {
  font-size: 1.55rem;
  line-height: 1;
}

.gos-donut-center span {
  font-size: 0.7rem;
  color: var(--gos-muted);
}

.gos-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.gos-legend li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--gos-muted);
}

.gos-legend .swatch {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 0.4rem;
}

.gos-office-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 250px;
  overflow: auto;
}

.gos-office-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.4rem 0.35rem;
  border-radius: 10px;
}

.gos-office-list li:hover {
  background: var(--gos-surface2);
}

.gos-office-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #04140e;
  background: linear-gradient(135deg, #5eead4, #12d48a);
  position: relative;
  flex-shrink: 0;
}

.gos-office-avatar .live {
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gos-accent);
  border: 2px solid var(--gos-surface);
}

.gos-office-meta {
  min-width: 0;
  flex: 1;
}

.gos-office-meta strong {
  display: block;
  font-size: 0.84rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gos-office-meta span {
  font-size: 0.72rem;
  color: var(--gos-muted);
}

.gos-cc-bottom {
  display: grid;
  grid-template-columns: 1.5fr 0.85fr 0.85fr;
  gap: 0.85rem;
}

.gos-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.gos-table th {
  text-align: left;
  color: var(--gos-muted);
  font-weight: 750;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.4rem;
  border-bottom: 1px solid var(--gos-border);
}

.gos-table td {
  padding: 0.62rem 0.4rem;
  border-bottom: 1px solid color-mix(in srgb, var(--gos-border) 65%, transparent);
  vertical-align: middle;
}

.gos-table tr:hover td {
  background: var(--gos-surface2);
}

.gos-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.16rem 0.55rem;
  font-size: 0.68rem;
  font-weight: 800;
}

.gos-badge.ok { color: #052e1c; background: rgba(18, 212, 138, 0.9); }
.gos-badge.warn { color: #422006; background: rgba(251, 191, 36, 0.92); }
.gos-badge.info { color: #082f49; background: rgba(96, 165, 250, 0.92); }
.gos-badge.danger { color: #450a0a; background: rgba(248, 113, 113, 0.92); }
.gos-badge.muted {
  color: var(--gos-text);
  background: var(--gos-surface3);
  border: 1px solid var(--gos-border);
}

html[data-theme="light"] .gos-badge.ok,
html[data-theme="light"] .gos-badge.warn,
html[data-theme="light"] .gos-badge.info,
html[data-theme="light"] .gos-badge.danger {
  color: #fff;
}

.gos-feed {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 260px;
  overflow: auto;
}

.gos-feed li {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 0.55rem;
}

.gos-feed .mark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 0.35rem;
  background: var(--gos-accent);
}

.gos-feed .body strong {
  display: block;
  font-size: 0.82rem;
}

.gos-feed .body span {
  font-size: 0.72rem;
  color: var(--gos-muted);
}

.gos-insight {
  border: 1px solid rgba(18, 212, 138, 0.28);
  background: linear-gradient(160deg, rgba(18, 212, 138, 0.12), transparent 55%);
  border-radius: 12px;
  padding: 0.75rem 0.8rem;
  margin-bottom: 0.55rem;
}

.gos-insight strong {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.2rem;
}

.gos-insight p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--gos-muted);
  line-height: 1.35;
}

.gos-queue-mini {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--gos-border);
  font-size: 0.8rem;
  color: var(--gos-muted);
}

.gos-queue-mini strong {
  color: var(--gos-text);
}

@media (max-width: 1200px) {
  .gos-cc-kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gos-cc-mid,
  .gos-cc-bottom { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .gos-cc-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gos-donut-wrap { grid-template-columns: 1fr; justify-items: center; }
}

/* Phase 3 shared polish */
.gos-subnav {
  background: var(--gos-surface);
  border: 1px solid var(--gos-border);
  border-radius: 14px;
  padding: 0.35rem;
  gap: 0.35rem;
}

.gos-subnav-item {
  border-radius: 10px !important;
}

.gos-subnav-item.is-active,
.gos-subnav-item:hover {
  background: var(--gos-accent-soft) !important;
  color: var(--gos-accent) !important;
}

#gos-module-host .card,
#gos-module-host .panel,
#gos-module-host .gos-card,
#gos-attendance-host .panel,
#gos-attendance-host .admin-panel,
.main-layout .content,
.main-layout .sidebar .panel {
  background: var(--gos-surface);
  border: 1px solid var(--gos-border);
  border-radius: var(--gos-radius);
  box-shadow: var(--gos-glow);
}

.btn-primary {
  background: linear-gradient(135deg, #34d399, var(--gos-accent)) !important;
  border: none !important;
  color: #042f1e !important;
  font-weight: 800 !important;
  border-radius: 11px !important;
  box-shadow: 0 8px 20px rgba(18, 212, 138, 0.22);
}

.btn-secondary {
  border-radius: 11px !important;
  border: 1px solid var(--gos-border) !important;
  background: var(--gos-surface2) !important;
  color: var(--gos-text) !important;
}

.login-card {
  border-radius: 20px !important;
  border: 1px solid var(--gos-border);
  box-shadow: var(--gos-glow);
  background: var(--gos-surface) !important;
}

.login-card .logo-img {
  border-radius: 18px;
  box-shadow: 0 0 0 1px rgba(18, 212, 138, 0.28);
}

#gos-module-host .gos-module-header,
#gos-module-host .module-header,
#gos-module-host h2 {
  letter-spacing: -0.02em;
}

#gos-module-host table:not(.gos-table),
#gos-attendance-host table {
  border-collapse: collapse;
}

#gos-module-host table:not(.gos-table) th,
#gos-attendance-host table th {
  color: var(--gos-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

#gos-module-host input:not([type="checkbox"]):not([type="radio"]),
#gos-module-host select,
#gos-module-host textarea,
#gos-attendance-host input:not([type="checkbox"]):not([type="radio"]),
#gos-attendance-host select,
#gos-attendance-host textarea {
  border-radius: 10px;
  border-color: var(--gos-border);
  background: var(--gos-surface2);
  color: var(--gos-text);
}

#gos-module-host input:focus,
#gos-module-host select:focus,
#gos-module-host textarea:focus {
  outline: none;
  border-color: var(--gos-accent);
  box-shadow: 0 0 0 3px var(--gos-accent-soft);
}

.gos-att-subnav .nav-btn {
  border-radius: 10px !important;
}

.gos-att-subnav .nav-btn.active {
  background: var(--gos-accent-soft) !important;
  color: var(--gos-accent) !important;
}

/* Compat / missing utilities */
.gos-muted { color: var(--gos-muted) !important; }
.gos-nav-section {
  margin: 0.85rem 0.55rem 0.35rem;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gos-muted);
  opacity: 0.9;
}
.gos-sidebar-foot {
  margin-top: auto;
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--gos-border);
  font-size: 0.72rem;
  color: var(--gos-muted);
  line-height: 1.35;
}
.gos-sidebar-foot strong {
  display: block;
  color: var(--gos-accent);
  margin-bottom: 0.15rem;
  font-size: 0.74rem;
}
.gos-presence-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(18, 212, 138, 0.35);
  background: var(--gos-accent-soft);
  color: var(--gos-accent);
  font-size: 0.74rem;
  font-weight: 750;
  white-space: nowrap;
}
.gos-presence-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gos-accent);
  box-shadow: 0 0 0 4px rgba(18, 212, 138, 0.18);
}
.gos-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #04140e;
  background: linear-gradient(135deg, #34d399, #12d48a);
  flex-shrink: 0;
}
.gos-user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}
.gos-user-meta strong {
  font-size: 0.8rem;
  color: var(--gos-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 130px;
}
.gos-user-meta span {
  font-size: 0.66rem;
  color: var(--gos-muted);
}
.gos-chip-row { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.gos-chart-wrap { height: 210px; }
.gos-chart-wrap svg { width: 100%; height: 100%; display: block; }
.gos-donut-wrap {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 0.85rem;
  align-items: center;
}
.gos-office-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #04140e;
  background: linear-gradient(135deg, #5eead4, #12d48a);
  position: relative;
  flex-shrink: 0;
}
.gos-office-avatar .live {
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gos-accent);
  border: 2px solid var(--gos-surface);
}
.gos-office-meta { min-width: 0; flex: 1; }
.gos-office-meta strong {
  display: block;
  font-size: 0.84rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.gos-office-meta span { font-size: 0.72rem; color: var(--gos-muted); }
.gos-sidebar {
  display: flex;
  flex-direction: column;
}