/* ===================================
   Block-Lot Design System
   Clean, modern, light theme
   =================================== */

/* --- Custom Properties --- */
:root {
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-primary-light: #EFF6FF;
  --color-primary-50: #DBEAFE;
  --color-success: #16A34A;
  --color-success-light: #DCFCE7;
  --color-danger: #DC2626;
  --color-danger-light: #FEE2E2;
  --color-warning: #F59E0B;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  --color-white: #FFFFFF;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* --- Container --- */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* --- Header / Nav --- */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
  text-decoration: none;
}

.logo svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-500);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* --- Hero Search Section --- */
.hero {
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  text-align: center;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.1rem;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-xl);
}

.search-bar {
  display: flex;
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  padding: var(--spacing-xs);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.search-bar .search-icon {
  width: 20px;
  height: 20px;
  margin-left: var(--spacing-md);
  color: var(--color-gray-400);
  flex-shrink: 0;
}

.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  padding: 12px var(--spacing-md);
  font-size: 1rem;
  color: var(--color-gray-800);
  background: transparent;
}

.search-bar input::placeholder {
  color: var(--color-gray-400);
}

.search-bar .btn-search {
  flex-shrink: 0;
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

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

.search-bar .btn-search:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.search-hint {
  font-size: 0.8125rem;
  color: var(--color-gray-400);
  margin-top: var(--spacing-sm);
}

/* --- Section Layout --- */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
}

.result-count {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

/* --- Property Card Grid --- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.property-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  animation: fadeIn 300ms ease forwards;
}

.property-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-50);
}

.property-card.selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.property-card .card-address {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
}

.property-card .card-meta {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.property-card .meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.property-card .meta-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
  font-weight: 600;
}

.property-card .meta-value {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-gray-700);
}

.no-results {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--color-gray-400);
  font-size: 1rem;
}

.error-message {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--color-danger);
  background: var(--color-danger-light);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
}

/* --- Permit Section --- */
.permit-form {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  flex: 1;
  min-width: 120px;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
}

.form-group input {
  padding: 10px 14px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--color-gray-800);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--color-white);
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.btn-permit-search {
  align-self: flex-end;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  white-space: nowrap;
}

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

.btn-permit-search:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* --- Toolbar row (permit count + PDF btn) --- */
.toolbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* --- Permit Expandable Cards --- */
.permit-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  transition: box-shadow var(--transition);
  animation: fadeIn 300ms ease forwards;
}

.permit-card:hover {
  box-shadow: var(--shadow-md);
}

.permit-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  user-select: none;
  gap: var(--spacing-md);
}

.permit-card-header:hover {
  background: var(--color-gray-50);
}

.permit-header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
}

.permit-number {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-gray-900);
}

.permit-type {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}

.permit-date {
  font-size: 0.8125rem;
  color: var(--color-gray-400);
}

.permit-header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-open {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.badge-closed {
  background: var(--color-success-light);
  color: var(--color-success);
}

.chevron {
  width: 20px;
  height: 20px;
  color: var(--color-gray-400);
  transition: transform 300ms ease;
  flex-shrink: 0;
}

.permit-card.expanded .chevron {
  transform: rotate(180deg);
}

.permit-card-body {
  display: none;
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  border-top: 1px solid var(--color-gray-100);
}

.permit-card.expanded .permit-card-body {
  display: block;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.detail-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
  font-weight: 600;
}

.detail-value {
  font-size: 0.875rem;
  color: var(--color-gray-700);
  word-break: break-word;
}

.detail-section-title {
  grid-column: 1 / -1;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-gray-100);
  margin-top: var(--spacing-xs);
}

.detail-section-title:first-child {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition);
  border: none;
}

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

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

.btn-outline {
  background: transparent;
  color: var(--color-gray-600);
  border: 1px solid var(--color-gray-300);
}

.btn-outline:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

.btn-outline svg {
  width: 16px;
  height: 16px;
}

/* --- Environmental Section --- */
.enviro-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
}

.enviro-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
}

.enviro-card p {
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.iframe-wrapper {
  margin-top: var(--spacing-lg);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 600px;
}

.iframe-wrapper iframe {
  border: none;
  width: 100%;
  height: 100%;
}

/* --- Toast Notification --- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-gray-800);
  color: var(--color-white);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  opacity: 0;
  transition: transform 300ms ease, opacity 300ms ease;
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* --- Loading Spinner (inline) --- */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 600ms linear infinite;
}

.spinner--dark {
  border-color: rgba(0,0,0,0.1);
  border-top-color: var(--color-primary);
}

/* --- Footer --- */
.site-footer {
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--color-gray-200);
  text-align: center;
  color: var(--color-gray-400);
  font-size: 0.8125rem;
}

/* --- Utility: Screen-reader only (hidden PDF table) --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* --- Hidden by default --- */
.hidden {
  display: none !important;
}

/* --- Animations --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Responsive Breakpoints --- */

/* 480px+ : slight spacing increase */
@media (min-width: 480px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 640px+ : permit form fits in one row */
@media (min-width: 640px) {
  .permit-form {
    flex-wrap: nowrap;
  }
}

/* Up to 639px: only the button wraps to the next line */
@media (max-width: 639px) {
  .permit-form .btn-permit-search {
    flex-basis: 100%;
    width: 100%;
  }
}

/* 768px+ : 2-column property cards, nav visible */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-xl);
  }

  .hero {
    padding: var(--spacing-3xl) 0;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 1024px+ : 3-column property cards */
@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .detail-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Mobile-specific */
@media (max-width: 479px) {
  .header-inner {
    height: 52px;
  }

  .nav-links {
    gap: var(--spacing-md);
  }

  .nav-links a {
    font-size: 0.8125rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .search-bar .btn-search {
    padding: 10px 16px;
    font-size: 0.875rem;
  }

  .permit-card-header {
    padding: var(--spacing-sm) var(--spacing-md);
    flex-wrap: wrap;
  }

  .permit-header-left {
    gap: var(--spacing-sm);
  }

  .section-title {
    font-size: 1.25rem;
  }

  .enviro-card {
    padding: var(--spacing-lg);
  }

  .iframe-wrapper {
    height: 400px;
  }
}