/* ==========================================================================
   ZZP Finance Tracker - App Stylesheet
   Imports design tokens from main site, adds dashboard-specific styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens (shared with main site)
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #1E40AF;
  --color-primary-dark: #1E3A8A;
  --color-primary-light: #3B82F6;
  --color-primary-bg: rgba(30, 64, 175, 0.06);

  --color-secondary: #0F172A;
  --color-accent: #D97706;
  --color-accent-hover: #B45309;

  --color-bg: #FFFFFF;
  --color-bg-alt: #F8FAFC;
  --color-bg-dark: #F1F5F9;
  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-dark: #CBD5E1;

  --color-success: #10B981;
  --color-success-bg: rgba(16, 185, 129, 0.08);
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-error-bg: rgba(239, 68, 68, 0.08);
  --color-info: #3B82F6;

  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  --header-height: 64px;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg-alt);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.app-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header .logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.app-header .logo span {
  color: var(--color-text-muted);
  font-weight: 400;
  margin-left: 0.5rem;
}

.app-header nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-left: auto;
}

.app-header nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.15s;
}

.app-header nav a:hover { color: var(--color-primary); }

#user-button { margin-left: 1rem; }

/* --------------------------------------------------------------------------
   Main Layout
   -------------------------------------------------------------------------- */
.app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   KPI Cards
   -------------------------------------------------------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.kpi-card .kpi-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.kpi-card .kpi-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.kpi-card.income .kpi-value { color: var(--color-success); }
.kpi-card.expense .kpi-value { color: var(--color-error); }
.kpi-card.profit .kpi-value { color: var(--color-primary); }

/* --------------------------------------------------------------------------
   Entry Form
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.form-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
  min-width: 140px;
}

.form-group label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dark); }

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover:not(:disabled) { background: var(--color-bg-dark); }

.hidden { display: none !important; }

/* --------------------------------------------------------------------------
   Entries Table
   -------------------------------------------------------------------------- */
.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.entries-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.entries-table th {
  text-align: left;
  padding: 0.625rem 0.75rem;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  border-bottom: 2px solid var(--color-border);
}

.entries-table td {
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.entries-table .amount {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  text-align: right;
}

.entries-table th:last-child,
.entries-table td:last-child { text-align: right; }

.entry-income .amount { color: var(--color-success); }
.entry-expense .amount { color: var(--color-error); }

.type-income {
  color: var(--color-success);
  background: var(--color-success-bg);
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.type-expense {
  color: var(--color-error);
  background: var(--color-error-bg);
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem !important;
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: all 0.15s;
}

.btn-icon:hover { color: var(--color-primary); background: var(--color-primary-bg); }
.btn-icon.btn-danger:hover { color: var(--color-error); background: var(--color-error-bg); }

.actions {
  display: flex;
  gap: 0.25rem;
  justify-content: flex-end;
}

/* --------------------------------------------------------------------------
   Tax Estimate
   -------------------------------------------------------------------------- */
.tax-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.tax-table td {
  padding: 0.5rem 0;
}

.tax-table td:last-child {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

.tax-table .separator td { border-top: 1px solid var(--color-border); padding-top: 0.75rem; }
.tax-table .total td { border-top: 2px solid var(--color-border-dark); font-weight: 700; padding-top: 0.75rem; }
.tax-table .note td { color: var(--color-text-muted); font-size: 0.8125rem; font-style: italic; padding-top: 0.75rem; }

/* --------------------------------------------------------------------------
   Year/Month Selector
   -------------------------------------------------------------------------- */
.filters {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.filters select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
}

/* --------------------------------------------------------------------------
   Login Page
   -------------------------------------------------------------------------- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
}

.login-container {
  text-align: center;
  max-width: 400px;
  width: 100%;
  padding: 2rem;
}

.login-container .logo-large {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.login-container .subtitle {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: 2rem;
}

.login-container .back-link {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-decoration: none;
}

.login-container .back-link:hover { color: var(--color-primary); }

#clerk-sign-in {
  display: flex;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .form-group {
    min-width: 100%;
  }

  .app-main {
    padding: 1rem;
  }

  .entries-table {
    font-size: 0.8125rem;
  }

  .entries-table th:nth-child(3),
  .entries-table td:nth-child(3) {
    display: none;
  }
}

@media (max-width: 480px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .kpi-card .kpi-value {
    font-size: 1.25rem;
  }
}