:root {
  /* Brand Colors */
  --primary-color: #4F46E5;
  --primary-hover: #4338CA;
  --secondary-color: #10B981;
  
  /* Neutral Palette */
  --bg-main: #FAFAFA;
  --bg-card: #FFFFFF;
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --border-color: #E5E7EB;
  
  /* Status Colors */
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Radii */
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Buttons */
.btn-primary {
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all 0.2s ease-in-out;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.05em;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.auth-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.login-btn {
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.5rem 1rem;
}

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

/* Hero Section */
.hero {
  position: relative;
  width: 100%;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.9) 0%, rgba(16, 185, 129, 0.8) 100%),
              url('https://images.unsplash.com/photo-1600596542815-ffad4c1539a9?auto=format&fit=crop&q=80');
  background-size: cover;
  background-position: center;
  padding: 2rem;
}

.hero-content {
  text-align: center;
  max-width: 1000px;
  width: 100%;
  z-index: 10;
}

.title {
  color: white;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.1;
  text-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.search-container {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-xl);
  text-align: left;
}

.search-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.tab {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 1rem;
  padding: 0.5rem 1rem;
  position: relative;
}

.active-tab {
  color: var(--primary-color);
}

.active-tab::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  border-radius: 3px 3px 0 0;
}

.search-form {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 1rem;
  align-items: end;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
}

.input-group input:focus,
.input-group select:focus {
  border-color: var(--primary-color);
}

.search-button {
  height: 48px;
}

/* Featured Properties */
.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-img-container {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-img {
  transform: scale(1.05);
}

.badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--success);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-location {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.card-details {
  display: flex;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

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

.detail-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.detail-value {
  font-weight: 600;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
}

.price span {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-muted);
}

/* Modals */
.hidden {
  display: none !important;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal {
  background: var(--bg-card);
  width: 90%;
  max-width: 450px;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 2rem;
  color: var(--text-muted);
}

.modal-content {
  padding: 3rem 2.5rem;
}

.modal-title {
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: 0.5rem;
}

.modal-subtitle {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 2.5rem;
}

.input-group-row {
  display: flex;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1rem;
}

.prefix {
  background-color: var(--bg-main);
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  font-weight: 600;
  border-right: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.input-group-row input {
  flex: 1;
  border: none;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  outline: none;
}

.submit-btn {
  width: 100%;
  padding: 1rem;
  font-size: 1.125rem;
}

.input-full {
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  text-align: center;
  letter-spacing: 0.25em;
  font-weight: 600;
  margin-bottom: 1rem;
  outline: none;
}

.resend-btn {
  display: block;
  width: 100%;
  color: var(--primary-color);
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 1rem;
  text-align: center;
}

@media (max-width: 768px) {
  .search-form {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}