/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 13px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-light); }
.btn-accent { background: var(--accent); color: var(--ink); }
.btn-accent:hover { box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: var(--primary); border: 1px solid var(--border); }
.btn-danger { background: var(--danger-soft); color: var(--danger); }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Cards ---------- */
.card {
  background: var(--paper-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

/* ---------- Inputs ---------- */
.field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.field label { font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.field input, .field select {
  padding: 13px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--paper-raised);
  transition: border-color 0.12s ease;
}
.field input:focus, .field select:focus {
  border-color: var(--primary);
  outline: none;
}
.field-error input { border-color: var(--danger); }
.field-hint { font-size: 12px; color: var(--danger); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}
.badge-pending { background: var(--accent-soft); color: #8A5A00; }
.badge-approved, .badge-paid { background: var(--success-soft); color: var(--success); }
.badge-rejected { background: var(--danger-soft); color: var(--danger); }

/* ---------- Progress Ring (signature element) ---------- */
.progress-ring { position: relative; display: inline-flex; align-items: center; justify-content: center; }
.progress-ring svg { transform: rotate(-90deg); }
.progress-ring circle {
  fill: none;
  stroke-width: 5;
}
.progress-ring .ring-bg { stroke: var(--border); }
.progress-ring .ring-fill {
  stroke: var(--accent);
  stroke-linecap: round;
  transition: stroke-dashoffset 0.2s linear;
}
.progress-ring .ring-label {
  position: absolute;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  background: var(--paper-raised);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-brand { display: flex; align-items: center; gap: var(--space-2); font-family: var(--font-display); font-weight: 700; font-size: 18px; }
.topbar-brand i { color: var(--accent); }

/* ---------- Bottom tab nav (User role) ---------- */
.tabbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--paper-raised);
  border-top: 1px solid var(--border);
  padding: 6px 0 max(6px, env(safe-area-inset-bottom));
  z-index: 20;
}
.tabbar-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}
.tabbar-item i { font-size: 18px; }
.tabbar-item.active { color: var(--primary); }

/* ---------- Sidebar (Admin/Dev role) ---------- */
.sidebar {
  width: 240px;
  background: var(--ink);
  color: white;
  display: flex;
  flex-direction: column;
  padding: var(--space-5) var(--space-3);
  gap: var(--space-1);
}
.sidebar-brand { font-family: var(--font-display); font-weight: 700; font-size: 18px; padding: 0 var(--space-3) var(--space-6); display: flex; align-items: center; gap: var(--space-2); }
.sidebar-brand i { color: var(--accent); }
.sidebar-link {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 12px 14px; border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.7); font-size: 14px; font-weight: 500;
}
.sidebar-link i { width: 18px; text-align: center; }
.sidebar-link.active { background: rgba(255,255,255,0.08); color: white; }
.sidebar-link:hover { color: white; }

/* ---------- Empty / loading states ---------- */
.empty-state { text-align: center; padding: var(--space-7) var(--space-4); color: var(--muted); }
.empty-state i { font-size: 32px; margin-bottom: var(--space-3); color: var(--border); }
.spinner {
  width: 20px; height: 20px;
  border: 2.5px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 90px; left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--ink);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: all 0.2s ease;
  z-index: 100;
  max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.toast-error { background: var(--danger); }
.toast.toast-success { background: var(--success); }