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

:root {
  --color-primary: #059669;
  --color-primary-hover: #047857;
  --color-primary-light: #ecfdf5;
  --color-primary-border: #a7f3d0;
  
  --color-bg-main: #0f172a;
  --color-bg-surface: #1e293b;
  --color-bg-card: #1e293b;
  --color-bg-input: #334155;
  
  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-dark: #0f172a;
  
  --color-accent-amber: #f59e0b;
  --color-accent-emerald: #10b981;
  --color-accent-blue: #3b82f6;
  --color-accent-rose: #f43f5e;
  
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--color-bg-main);
  color: var(--color-text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary-border);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: #ffffff;
}

/* Header & Navbar */
.app-header {
  background-color: var(--color-bg-surface);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem 2rem;
  box-shadow: var(--shadow-md);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-title .badge-logo {
  background: linear-gradient(135deg, #10b981, #047857);
  color: white;
  padding: 0.25rem 0.6rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  list-style: none;
}

.nav-link {
  color: var(--color-text-muted);
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.06);
}

/* Main Content Container */
.app-main {
  flex: 1;
  max-width: 1280px;
  width: 100%;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* Page Headers & Metrics Grid */
.page-title-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.metric-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(16, 185, 129, 0.3);
}

.metric-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: #ffffff;
}

.metric-value.emerald {
  color: var(--color-accent-emerald);
}

.metric-sub {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* Cards & Layout Panels */
.panel {
  background-color: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
}

.panel-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

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

.data-table th {
  background-color: rgba(0, 0, 0, 0.2);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.data-table td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.925rem;
}

.data-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.badge-forecasted {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--color-accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-confirmed {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--color-accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-paid {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--color-accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-exceptional {
  background-color: rgba(244, 63, 94, 0.15);
  color: var(--color-accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.badge-normal {
  background-color: rgba(148, 163, 184, 0.15);
  color: var(--color-text-muted);
}

/* Forms & Inputs */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-control {
  background-color: var(--color-bg-input);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--border-radius-sm);
  padding: 0.65rem 0.9rem;
  color: #ffffff;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  width: 100%;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent-emerald);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

/* Vertical Form Layout (Label & Helptext Left, Input Right) */
.form-vertical {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row-vertical {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  align-items: center;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.form-row-vertical:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.form-row-label-container {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form-row-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
}

.form-row-helptext {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.form-row-input {
  display: flex;
  flex-direction: column;
}

@media (max-width: 768px) {
  .form-row-vertical {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

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

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.18);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

/* Flash Messages */
.alert {
  padding: 1rem;
  border-radius: var(--border-radius-md);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

/* Footer */
.app-footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: auto;
}