:root {
  --bg-primary: #0a0d14;
  --bg-card: #111726;
  --bg-card-hover: #161e31;
  --bg-elevated: #1a2238;
  --border-color: #1e293b;
  --border-focus: #3b82f6;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-blue: #38bdf8;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-yellow: #f59e0b;
  --accent-red: #ef4444;
  --accent-purple: #a855f7;

  --badge-running: #10b981;
  --badge-sleeping: #64748b;
  --badge-zombie: #ef4444;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.45);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* NAVBAR */
.navbar {
  background: rgba(17, 23, 38, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(16, 185, 129, 0.2));
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-pill.offline {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-red);
  border-color: rgba(239, 68, 68, 0.3);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s infinite;
}

.status-pill.offline .status-dot {
  background-color: var(--accent-red);
  box-shadow: none;
  animation: none;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.server-quick-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.quick-badge {
  background: var(--bg-elevated);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

/* LAYOUT */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* RESOURCE CARDS GRID */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.metric-card:hover {
  border-color: rgba(56, 189, 248, 0.4);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.card-icon {
  font-size: 1.2rem;
  padding: 0.35rem;
  border-radius: 8px;
  background: var(--bg-elevated);
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-main-val {
  font-size: 1.85rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fff;
  line-height: 1.1;
}

.progress-track {
  width: 100%;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 9999px;
  margin: 0.75rem 0;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.4s ease, background-color 0.4s ease;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
}

.progress-fill.warning {
  background: linear-gradient(90deg, var(--accent-yellow), #f97316);
}

.progress-fill.danger {
  background: linear-gradient(90deg, #f87171, var(--accent-red));
}

.card-details {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.detail-row .val {
  font-family: var(--font-mono);
  color: var(--text-main);
  font-weight: 500;
}

/* MINI CORES BAR */
.cores-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.core-item {
  background: var(--bg-elevated);
  padding: 0.35rem;
  border-radius: 6px;
  text-align: center;
  font-size: 0.7rem;
  font-family: var(--font-mono);
}

.core-bar {
  height: 4px;
  background: #243049;
  border-radius: 2px;
  margin-top: 3px;
  overflow: hidden;
}

.core-bar-fill {
  height: 100%;
  background: var(--accent-cyan);
  transition: width 0.3s;
}

/* PROCESS MANAGER SECTION */
.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.section-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tab-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: rgba(56, 189, 248, 0.4);
}

.tab-btn.active {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-blue);
  border-color: var(--accent-blue);
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.search-box {
  position: relative;
}

.search-input {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.45rem 0.85rem 0.45rem 2rem;
  color: var(--text-main);
  font-size: 0.85rem;
  width: 220px;
  transition: width 0.2s, border-color 0.2s;
}

.search-input:focus {
  outline: none;
  border-color: var(--border-focus);
  width: 280px;
}

.search-icon {
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 0.85rem;
  pointer-events: none;
}

.control-select {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  color: var(--text-main);
  font-size: 0.85rem;
  cursor: pointer;
}

.control-select:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* PROCESS TABLE */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.proc-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.proc-table th {
  background: var(--bg-elevated);
  color: var(--text-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 1px solid var(--border-color);
  user-select: none;
}

.proc-table th.sortable {
  cursor: pointer;
}

.proc-table th.sortable:hover {
  color: var(--accent-blue);
}

.proc-table th.sortable.active {
  color: var(--accent-blue);
}

.proc-table td {
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid rgba(30, 41, 59, 0.6);
  color: var(--text-main);
  white-space: nowrap;
}

.proc-table tr:last-child td {
  border-bottom: none;
}

.proc-table tr:hover {
  background: rgba(26, 34, 56, 0.5);
}

.pid-badge {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-blue);
  background: rgba(56, 189, 248, 0.1);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.proc-name {
  font-weight: 600;
  color: #fff;
  display: block;
}

.proc-cmd {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.proc-cmd:hover {
  color: var(--text-muted);
}

.status-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.status-badge.running {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}

.status-badge.sleeping {
  background: rgba(100, 116, 139, 0.2);
  color: #cbd5e1;
}

.status-badge.zombie {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
}

/* METRIC BAR IN TABLE */
.table-bar-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.table-bar {
  width: 60px;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
}

.table-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent-blue);
}

/* ACTION BUTTONS */
.action-buttons {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-abort {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: all 0.2s ease;
}

.btn-abort:hover {
  background: var(--accent-red);
  color: #fff;
  border-color: var(--accent-red);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
}

.btn-term {
  background: rgba(245, 158, 11, 0.15);
  color: #fcd34d;
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: all 0.2s ease;
}

.btn-term:hover {
  background: var(--accent-yellow);
  color: #000;
  border-color: var(--accent-yellow);
}

/* MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  width: 90%;
  max-width: 500px;
  padding: 1.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  transform: translateY(20px);
  transition: transform 0.2s ease;
}

.modal-overlay.open .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.25rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modal-proc-info {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.modal-warning {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.75rem;
  border-radius: 8px;
  color: #fca5a5;
  font-size: 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn-cancel {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
}

.btn-cancel:hover {
  color: #fff;
  background: var(--bg-card-hover);
}

.btn-confirm-kill {
  background: var(--accent-red);
  color: #fff;
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.4);
}

.btn-confirm-kill:hover {
  background: #dc2626;
}

/* TOAST */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.85rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: slideIn 0.25s ease;
}

.toast.success {
  border-color: var(--accent-green);
  border-left: 4px solid var(--accent-green);
}

.toast.error {
  border-color: var(--accent-red);
  border-left: 4px solid var(--accent-red);
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* KILL LOG DRAWER */
.kill-log-section {
  margin-top: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem;
}

.kill-log-header {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kill-log-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 160px;
  overflow-y: auto;
}

.kill-log-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-elevated);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }
  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }
  .section-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .toolbar-left, .toolbar-right {
    width: 100%;
  }
  .search-input {
    width: 100%;
  }
  .search-input:focus {
    width: 100%;
  }
}