/* Modern Design System */
:root {
    --gradient-blue-1: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    --gradient-blue-2: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-blue-3: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    --color-blue-50: #eff6ff;
    --color-blue-100: #dbeafe;
    --color-blue-500: #3b82f6;
    --color-blue-600: #2563eb;
    --color-blue-700: #1d4ed8;
    --color-blue-800: #1e40af;
    --color-success: #059669;
    --color-danger: #dc2626;
    --color-background: #ffffff;
    --color-surface: #f8fafc;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-border: #e5e7eb;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-blue: 0 4px 12px rgba(37, 99, 235, 0.15);
    
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
}

/* Base Container */
.valuation-tool {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--color-text);
    background: var(--color-surface);
    min-height: 100vh;
}

/* Search Section */
.search-section {
    position: relative;
    padding: 4rem 2rem;
    background: var(--gradient-blue-1);
    border-radius: var(--rounded-xl);
    color: white;
    text-align: center;
    margin-bottom: 2rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.search-section.searching {
    padding: 2rem;
    margin-bottom: 1rem;
}

.search-container {
    position: relative;
    z-index: 1;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-container.minimize {
    transform: scale(0.95);
    opacity: 0.8;
}

.search-container h2 {
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0;
    margin-bottom: 8px;
    color: #2D3643;
}

.subtitle {
    font-size: 16px;
    font-weight: 400;
    line-height: 28px;
    letter-spacing: 0;
    /*opacity: 0.9;*/
    margin-bottom: 24px;
}

.search-form .input-group {
    display: flex;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.postcode-input {
    flex: 1;
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
    color: var(--color-text);
    background: white;
    border: 2px solid transparent;
    border-radius: var(--rounded-md);
    transition: all 0.2s ease;
    box-shadow: var(--shadow-md);
}

.postcode-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-lg);
}

.search-button {
    padding: 1.25rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-blue-600);
    background: white;
    border: none;
    border-radius: var(--rounded-md);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-md);
}

.search-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* Dropdown Filter */
.postcode-search-dropdown {
    margin-top: 16px;
    max-width: 600px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}
.postcode-search-dropdown select {
    padding: 10px 16px;
    border: 1px solid transparent;
    font-size: 16px;
    font-weight: 400;
    line-height: 28px;
    letter-spacing: 0;
    color: #2D3643;
    width: 100%;
    display: block;
    border-radius: 10px;
}
.postcode-search-dropdown select:focus {
    outline-color : #0057B2;
    border-color: #0057B2;
    box-shadow: 0px 0px 0px 4px rgba(63, 101, 243, 0.2);
}

/* Results Header */
.results-header {
    margin-bottom: 3rem;
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--rounded-lg);
    box-shadow: var(--shadow-blue);
}

.results-count {
    margin-bottom: 0.5rem;
}

.count-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-blue-600);
    margin-right: 0.5rem;
}

.count-label {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
}

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

/* Property Cards */
.properties-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 600px), 1fr));
}

.property-card {
    background: white;
    border-radius: var(--rounded-lg);
    box-shadow: var(--shadow-blue);
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: calc(var(--animation-order) * 0.1s);
}

.properties-grid.show-cards .property-card {
    opacity: 1;
    transform: translateY(0);
}

.property-card-header {
    padding: 1.5rem;
    background: var(--gradient-blue-2);
    color: white;
}

.property-header-content {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: space-between;
    align-items: flex-start;
}

.badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.property-type-badge,
.tenure-badge {
    padding: 0.5rem 1rem;
    border-radius: var(--rounded-sm);
    font-size: 0.875rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.property-type-badge {
    color: var(--color-blue-700);
}

.tenure-badge {
    color: var(--color-success);
}

.latest-price {
    text-align: right;
}

.price-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.25rem;
}

.price-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: white;
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.overall-change {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--rounded-sm);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.overall-change.positive {
    color: var(--color-success);
}

.overall-change.negative {
    color: var(--color-danger);
}

.property-card-body {
    padding: 1.5rem;
}

.property-address {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

/* Transaction History Table */
.transaction-history h5 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.transaction-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: 1rem;
    background: var(--color-surface);
    border-radius: var(--rounded-md);
    overflow: hidden;
}

.transaction-table th {
    background: var(--gradient-blue-2);
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    text-align: left;
    padding: 1rem 1.25rem;
    white-space: nowrap;
}

.transaction-table td {
    padding: 1rem 1.25rem;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--color-border);
    background: white;
}

.transaction-table tr:last-child td {
    border-bottom: none;
}

.price-change {
    display: inline-block;
    font-weight: 500;
    padding: 0.375rem 0.75rem;
    border-radius: var(--rounded-sm);
    font-size: 0.875rem;
    min-width: 80px;
    text-align: center;
}

.price-change.positive {
    background-color: #dcfce7;
    color: var(--color-success);
}

.price-change.negative {
    background-color: #fee2e2;
    color: var(--color-danger);
}

/* Modern Loading Animation */
.loading-state {
    display: none;
    text-align: center;
    padding: 3rem;
    position: relative;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    position: relative;
}

.loading-spinner::before,
.loading-spinner::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-blue-2);
    opacity: 0.6;
    filter: blur(4px);
}

.loading-spinner::before {
    animation: pulse 2s ease-out infinite;
}

.loading-spinner::after {
    animation: pulse 2s ease-out infinite 1s;
}

@keyframes pulse {
    0% {
        transform: scale(0.1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1);
        opacity: 0;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

.loading-state p {
    color: var(--color-text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

/* Error Message */
.error-message {
    display: none;
    margin-top: 1.5rem;
}

.error-content {
    max-width: 600px;
    margin: 0 auto;
    background: #fee2e2;
    color: var(--color-danger);
    padding: 1rem 1.5rem;
    border-radius: var(--rounded-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .valuation-tool {
        padding: 1rem;
    }

    .search-section {
        padding: 2.5rem 1.5rem;
    }

    .search-form .input-group {
        flex-direction: column;
    }

    .property-header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .latest-price {
        text-align: left;
    }

    .transaction-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .results-header {
        padding: 1.5rem;
    }

    .count-number {
        font-size: 2rem;
    }

    .count-label {
        font-size: 1.25rem;
    }
}

/* Print Styles */
@media print {
    .valuation-tool {
        background: white;
        padding: 0;
    }

    .search-section {
        display: none;
    }

    .property-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--color-border);
        margin-bottom: 2rem;
    }

    .property-card-header {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .transaction-table th {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .property-card-header,
    .transaction-table th {
        background: var(--color-blue-600) !important;
        background-image: none !important;
    }

    .property-type-badge,
    .tenure-badge,
    .overall-change {
        border: 1px solid currentColor;
    }
}