frontend-react/src/index.css

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&family=Noto+Sans+SC:wght@400;500;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');
@import "tailwindcss";

/* ── Design Tokens ─────────────────────────────────────────────────────── */
:root {
  --bg-color: #ffffff;
  --text-color: #000000;
  --border-color: #000000;
  --surface-color: #f5f5f5;   /* subtle off-white for secondary surfaces */
  --hover-bg: #f0f0f0;
  --muted-color: #666666;
  --success-color: #16a34a;
  --error-color: #dc2626;
  --warning-color: #d97706;

  --font-sans: 'Inter', 'Noto Sans SC', sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-speed: 0.18s;
  --nav-height: 60px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

code, pre, .technical { font-family: var(--font-mono); }

/* ── Links ─────────────────────────────────────────────────────────────── */
a {
  color: var(--text-color);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: background var(--transition-speed), color var(--transition-speed);
}
a:hover {
  background-color: var(--text-color);
  color: var(--bg-color);
}

/* ── Buttons ───────────────────────────────────────────────────────────── */
button, .app-btn {
  font-family: var(--font-display);
  background-color: var(--bg-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  padding: 0.5rem 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-speed) ease, color var(--transition-speed) ease;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
button:hover, .app-btn:hover {
  background-color: var(--text-color);
  color: var(--bg-color);
}
button:disabled, .app-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* Text-only button (no border, no background) */
.text-btn {
  background: none !important;
  border: none !important;
  color: var(--text-color);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  transition: background var(--transition-speed), color var(--transition-speed);
  padding: 0.2rem 0.4rem;
}
.text-btn:hover {
  background: var(--text-color) !important;
  color: var(--bg-color) !important;
}

/* ── Toast dismiss button ──────────────────────────────────────────────── */
/* Prevents global button:hover from flipping the close button inside toasts */
.toast-dismiss-btn {
  background: transparent !important;
  border: none !important;
  color: inherit !important;
  cursor: pointer !important;
  margin-left: auto !important;
  padding: 0 0.3rem !important;
  font-size: 1.2rem !important;
  line-height: 1 !important;
  opacity: 0.7;
  flex-shrink: 0;
  transition: opacity 0.12s ease !important;
}
.toast-dismiss-btn:hover {
  background: transparent !important;
  color: inherit !important;
  opacity: 1 !important;
}

/* ── Status toast ──────────────────────────────────────────────────────── */
.status-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--text-color);
  color: var(--bg-color);
  padding: 0.9rem 1.2rem;
  border-left: 5px solid #000;
  box-shadow: 4px 4px 0 rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 9999;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  max-width: 420px;
  animation: slideUpToast 0.28s ease-out both;
  will-change: transform;
}
.status-toast.error { border-left-color: var(--error-color); }
.status-toast.success { border-left-color: var(--success-color); }

/* ── Form Controls ─────────────────────────────────────────────────────── */
input, textarea, select {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  font-size: 0.95rem;
  transition: box-shadow var(--transition-speed) ease;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  box-shadow: 3px 3px 0 var(--border-color);
}

/* ── Scrollbars ────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f9f9f9; border-left: 1px solid #e5e5e5; }
::-webkit-scrollbar-thumb { background: #ccc; }
::-webkit-scrollbar-thumb:hover { background: #999; }

/* ── Layout Utilities ──────────────────────────────────────────────────── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
}

.card {
  border: 2px solid var(--border-color);
  padding: 1.5rem;
  background-color: var(--bg-color);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 5px 5px 0 var(--border-color);
}

.mono-text { font-family: var(--font-mono); font-size: 0.88em; }

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.full-width { width: 100%; }

.page-header {
  border-bottom: 3px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}

/* ── Keyframes ─────────────────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUpToast {
  from { transform: translateY(80px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

.fade-in { animation: fadeIn 0.4s ease both; }

/* ── Status indicators ─────────────────────────────────────────────────── */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.online { background: var(--success-color); }
.status-dot.offline { background: var(--error-color); }

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .container { padding: 1rem; }
  .card { padding: 1rem; }
}

/* ── Admin / shared aliases ─────────────────────────────────────────────── */
/* These classes are referenced in AdminDashboard and other views.          */
/* They map onto the existing design system so everything is uniform.       */

/* Base btn — same as global button but without uppercase transform */
.btn {
  font-family: var(--font-display);
  background-color: var(--bg-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  padding: 0.5rem 1rem;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: background var(--transition-speed) ease, color var(--transition-speed) ease;
}
.btn:hover:not(:disabled) {
  background-color: var(--text-color);
  color: var(--bg-color);
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary button — filled black */
.btn-primary {
  background-color: var(--text-color);
  color: var(--bg-color);
  border: 2px solid var(--text-color);
}
.btn-primary:hover:not(:disabled) {
  background-color: #333;
  border-color: #333;
}

/* Outline / ghost button */
.btn-outline {
  background: transparent;
  color: var(--text-color);
  border: 2px solid var(--border-color);
}
.btn-outline:hover:not(:disabled) {
  background: var(--text-color);
  color: var(--bg-color);
}

/* Danger button */
.btn-danger {
  color: var(--error-color);
  border-color: var(--error-color);
}
.btn-danger:hover:not(:disabled) {
  background: var(--error-color);
  color: #fff;
}

/* Uniform search / select input (matches global input but explicit class) */
.search-input {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  transition: box-shadow var(--transition-speed) ease;
  width: 100%;
}
.search-input:focus {
  outline: none;
  box-shadow: 3px 3px 0 var(--border-color);
}

/* Status / metric cards */
.status-card {
  border: 2px solid var(--border-color);
  padding: 1.25rem 1.5rem;
  background: var(--bg-color);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  margin-top: 0.25rem;
}

.status-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--muted-color);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Online / offline indicator dots */
.indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.indicator.online  { background: var(--success-color); }
.indicator.offline { background: var(--error-color); }
.indicator.pending { background: var(--warning-color); }

/* Typography */
.title-lg {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.1;
}
.title-md {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}
.title-sm {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted-color);
}

/* Data table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.data-table thead tr {
  background: var(--surface-color);
  border-bottom: 2px solid var(--border-color);
}
.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid #eaeaea;
}
.data-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--muted-color);
}
.data-table tbody tr:hover {
  background: var(--surface-color);
}
.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Tag / badge chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1.5px solid var(--border-color);
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
}
.chip.success { border-color: var(--success-color); color: var(--success-color); }
.chip.error   { border-color: var(--error-color);   color: var(--error-color);   }
.chip.warning { border-color: var(--warning-color); color: var(--warning-color); }
.chip.filled  { background: var(--text-color); color: var(--bg-color); }

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  color: var(--muted-color);
  gap: 0.75rem;
  border: 2px dashed var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  text-align: center;
}

/* Help tooltip */
.help-tooltip {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.help-tooltip [data-tip] {
  cursor: help;
  color: var(--muted-color);
}
.help-tooltip [data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-color);
  color: var(--bg-color);
  padding: 0.4rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  white-space: nowrap;
  z-index: 9999;
  pointer-events: none;
  max-width: 260px;
  white-space: normal;
  text-align: center;
}

/* Page info bar */
.page-info-bar {
  background: var(--surface-color);
  border-left: 4px solid var(--border-color);
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--muted-color);
}
.page-info-bar strong { color: var(--text-color); font-family: var(--font-mono); }