/* ==========================================================================
   OUTDONE DESIGN SYSTEM — COMPONENTS
   Buttons, Badges, Milestone Trackers, Metric Cards, Inputs, Tables, Modals
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. BUTTONS & ACTIONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: -0.01em;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 0.78rem;
  border-radius: var(--radius-xs);
}

.btn-lg {
  padding: 12px 24px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-blue) 0%, #1D4ED8 100%);
  color: #FFFFFF;
  box-shadow: 0 2px 8px var(--brand-blue-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-blue-hover) 0%, #1E40AF 100%);
  box-shadow: 0 4px 16px var(--brand-blue-glow);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--bg-surface-1);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-surface-2);
  border-color: var(--border-medium);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--bg-surface-1);
  color: var(--text-primary);
}

.btn-emerald {
  background: var(--accent-emerald);
  color: #FFFFFF;
}

.btn-emerald:hover {
  filter: brightness(1.1);
}

.btn-amber {
  background: var(--accent-amber);
  color: #FFFFFF;
}

.btn-amber:hover {
  filter: brightness(1.1);
}

.btn-danger {
  background: var(--accent-rose);
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   2. BADGES & TELEMETRY CHIPS
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-blue {
  background: var(--brand-blue-subtle);
  color: var(--brand-blue);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-emerald {
  background: var(--accent-emerald-subtle);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-amber {
  background: var(--accent-amber-subtle);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-rose {
  background: var(--accent-rose-subtle);
  color: var(--accent-rose);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.badge-slate {
  background: var(--bg-surface-1);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   3. FORM INPUTS & SEARCH
   -------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-base);
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-input {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  padding: 10px 14px;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--brand-blue);
  background: var(--bg-canvas);
  box-shadow: 0 0 0 3px var(--brand-blue-subtle);
}

.form-input::placeholder {
  color: var(--text-ghost);
}

.form-input.mono-input {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-icon svg {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  pointer-events: none;
}

.input-with-icon input {
  padding-left: 38px;
}

/* --------------------------------------------------------------------------
   4. METRIC CARDS
   -------------------------------------------------------------------------- */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-base);
  margin-bottom: var(--space-xl);
}

@media (min-width: 640px) {
  .metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .metrics-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.metric-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.metric-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.85rem;
  color: var(--text-primary);
  line-height: 1.1;
  margin-top: 4px;
}

.metric-subtext {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* --------------------------------------------------------------------------
   5. TAB SWITCHERS
   -------------------------------------------------------------------------- */
.tab-group {
  display: inline-flex;
  align-items: center;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
  overflow-x: auto;
  max-width: 100%;
}

.tab-btn {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-xs);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.tab-count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-2);
  color: var(--text-muted);
}

.tab-btn.active .tab-count {
  background: var(--brand-blue-subtle);
  color: var(--brand-blue);
}

/* --------------------------------------------------------------------------
   6. 6-STAGE MILESTONE STEP TRACKER
   -------------------------------------------------------------------------- */
.milestone-stepper {
  display: flex;
  flex-direction: column;
  gap: var(--space-base);
  position: relative;
  margin: var(--space-lg) 0;
}

@media (min-width: 768px) {
  .milestone-stepper {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
  }
}

.milestone-step-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  flex: 1;
  position: relative;
}

.step-node {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  flex-shrink: 0;
  z-index: 2;
  transition: all var(--transition-base);
}

.step-node.completed {
  background: var(--accent-emerald);
  color: #FFFFFF;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.step-node.active {
  background: var(--brand-blue);
  color: #FFFFFF;
  box-shadow: 0 0 12px var(--brand-blue-glow);
  animation: pulse-step 2s infinite ease-in-out;
}

.step-node.pending {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

@keyframes pulse-step {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

.step-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.86rem;
  color: var(--text-primary);
}

.step-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   7. DATA TABLES & LEDGERS
   -------------------------------------------------------------------------- */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-canvas);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.84rem;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-surface-1);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

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

.data-table tr:hover td {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   8. MODALS & SLIDE-OVER DRAWERS
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-base);
}

.modal-overlay.open {
  display: flex;
}

.modal-dialog {
  background: var(--bg-canvas);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 620px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modal-pop 180ms ease-out;
}

@keyframes modal-pop {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: var(--space-base) var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-lg);
  overflow-y: auto;
}

.modal-footer {
  padding: var(--space-base) var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface-0);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
}