:root {
    --bg-color: #0f172a;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(15, 23, 42, 0.6);
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-hover: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 3rem 1rem;
    overflow-x: hidden;
    position: relative;
}

.background-decor {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.15), transparent 70%),
                radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.15), transparent 50%);
    z-index: -1;
    pointer-events: none;
}

.app-container {
    width: 100%;
    max-width: 900px;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

header {
    text-align: center;
    margin-bottom: 2.5rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #a5b4fc, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.search-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
    background: rgba(0,0,0,0.2);
    padding: 1.5rem;
    border-radius: 1rem;
}

.price-range {
    display: flex;
    align-items: center;
    gap: 1rem;
    grid-column: 1 / -1;
}

.separator {
    color: var(--text-secondary);
    margin-top: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    width: 100%;
}

label {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #cbd5e1;
}

input, select {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.2s ease;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.primary-btn {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    border: none;
    padding: 0.875rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 0.5rem;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.results-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.badge {
    background-color: rgba(99, 102, 241, 0.2);
    color: #a5b4fc;
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-weight: 600;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.result-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
    animation: fadeIn 0.4s ease-out forwards;
    display: flex;
    flex-direction: column;
}

.result-card:hover {
    background: var(--card-hover);
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.2);
}

.card-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #c084fc;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.4;
    flex-grow: 1;
}

.card-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #10b981;
}

.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.no-results svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.ghost-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.ghost-btn:hover {
    background: rgba(255,255,255,0.1);
}

.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 640px) {
    .search-form {
        grid-template-columns: 1fr;
    }
    .price-range {
        flex-direction: column;
        align-items: stretch;
    }
    .separator {
        display: none;
    }
}