/* Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-main: #030712;
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-hover-bg: rgba(255, 255, 255, 0.07);
  --glass-hover-border: rgba(255, 255, 255, 0.14);
}

body {
  background-color: var(--bg-main);
  color: #f1f5f9;
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  margin: 0;
  padding: 0;
}

/* Custom Scrollbars */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #111827; }
::-webkit-scrollbar-thumb { background: #374151; border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: #4b5563; }

/* Glassmorphism Classes */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
}

.glass-hover {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-hover:hover {
  background: var(--glass-hover-bg);
  border-color: var(--glass-hover-border);
}

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem;
}

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform 200ms ease;
}

.stat-card:hover {
  transform: translateY(-2px);
}

/* Buttons */
.btn-primary {
  padding: 0.5rem 1rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 200ms;
  background: linear-gradient(to right, #7c3aed, #4f46e5);
  color: white;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-primary:hover {
  background: linear-gradient(to right, #6d28d9, #4338ca);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.btn-primary:active { transform: scale(0.97); }

.btn-secondary {
  padding: 0.5rem 1rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 200ms;
  background: rgba(255, 255, 255, 0.06);
  color: #e2e8f0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-secondary:hover { background: rgba(255, 255, 255, 0.1); }
.btn-secondary:active { transform: scale(0.97); }

.btn-danger {
  padding: 0.5rem 1rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 200ms;
  background: linear-gradient(to right, #b91c1c, #be123c);
  color: white;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-danger:hover { background: linear-gradient(to right, #dc2626, #e11d48); }
.btn-danger:active { transform: scale(0.97); }

.btn-success {
  padding: 0.5rem 1rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 200ms;
  background: linear-gradient(to right, #059669, #0d9488);
  color: white;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-success:hover { background: linear-gradient(to right, #10b981, #14b8a6); }
.btn-success:active { transform: scale(0.97); }

/* Form Controls */
.input {
  width: 100%;
  padding: 0.625rem 1rem;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #f1f5f9;
  font-size: 0.875rem;
  outline: none;
  transition: all 200ms;
  box-sizing: border-box;
}

.input option {
  background: #111827;
  color: #f1f5f9;
}

.input::placeholder { color: #6b7280; }
.input:focus {
  border-color: rgba(124, 58, 237, 0.6);
  box-shadow: 0 0 0 1px rgba(124, 58, 237, 0.3);
}

.label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.375rem;
}

/* Badges */
.badge-active {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.badge-overdue {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.badge-paid {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.badge-partial {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

/* Tables */
.table-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 0.75rem 1rem;
}

.table-cell {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #e2e8f0;
}

.table-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background-color 150ms;
}

.table-row:hover { background: rgba(255, 255, 255, 0.03); }

/* Modal Backdrop */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-content {
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1.25rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  width: 100%;
  animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: #1a1a2e;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
  padding: 0.75rem 1.25rem;
  border-radius: 0.75rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  animation: toastIn 0.3s ease-out forwards;
}

.toast-success { border-color: rgba(16, 185, 129, 0.3); }
.toast-error { border-color: rgba(239, 68, 68, 0.3); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}