/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

/* Header */
header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    font-size: 2.2em;
    margin-bottom: 10px;
}

.tagline {
    opacity: 0.9;
    font-style: italic;
}

/* Navigation */
nav {
    background-color: #1a1a2e;
    padding: 0 30px;
    display: flex;
    gap: 5px;
}

nav a {
    color: #e0e0e0;
    text-decoration: none;
    padding: 15px 20px;
    display: inline-block;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

nav a:hover {
    background-color: #16213e;
    color: #fff;
}

nav a.active {
    background-color: #0f3460;
    border-bottom-color: #e94560;
    color: #fff;
}

/* Main Content */
main {
    padding: 30px;
}

/* Search Section */
.search-section {
    background-color: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 30px;
    border-left: 4px solid #667eea;
}

.search-form, .search-form-inline {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.search-form-inline {
    flex-direction: row;
    align-items: center;
}

.input-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.input-group label {
    font-weight: 600;
    color: #333;
}

input[type="text"] {
    flex: 1;
    min-width: 250px;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
}

.btn-search {
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-search:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.hint {
    color: #666;
    font-size: 0.9em;
    margin-top: 5px;
}

.info-text {
    color: #555;
    margin-bottom: 15px;
}

/* Results Section */
.results-section {
    margin-bottom: 30px;
}

.results-section h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.8em;
}

#search-term {
    color: #e94560;
    font-weight: bold;
}

.no-results {
    padding: 30px;
    text-align: center;
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 6px;
    color: #856404;
}

.results-count {
    background-color: #e3f2fd;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    border-left: 4px solid #2196f3;
}

.try-again {
    color: #666;
    margin-top: 5px;
}

/* Products Preview */
.products-preview {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

.products-preview h3 {
    color: #333;
    margin-bottom: 15px;
}

.product-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    background-color: white;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
}

.product-name {
    font-weight: 600;
    color: #333;
}

.product-price {
    color: #e94560;
    font-weight: bold;
}

/* Features Section */
.features {
    margin-bottom: 30px;
}

.features h3 {
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.feature {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.feature h4 {
    color: #333;
    margin-bottom: 10px;
    font-size: 1.2em;
}

.feature p {
    color: #666;
    line-height: 1.5;
}

/* Tips Section */
.tips {
    background-color: #e8f5e9;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #4caf50;
}

.tips h3 {
    color: #2e7d32;
    margin-bottom: 15px;
}

.tips ul {
    list-style-position: inside;
    color: #555;
}

.tips li {
    margin-bottom: 8px;
    padding-left: 10px;
}

/* Advanced Options */
.advanced-options {
    background-color: #fff3e0;
    padding: 20px;
    border-radius: 8px;
    margin-top: 30px;
    border-left: 4px solid #ff9800;
}

.advanced-options h3 {
    color: #e65100;
    margin-bottom: 15px;
}

.advanced-options .small {
    font-size: 0.9em;
    color: #666;
}

.advanced-options code {
    background-color: #fff;
    padding: 2px 8px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    color: #d32f2f;
}

.warning {
    color: #e65100;
    font-weight: 600;
    margin-top: 10px;
}

/* Search Meta */
.search-meta {
    margin-top: 20px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
    text-align: center;
    color: #999;
    font-size: 0.9em;
}

/* Footer */
footer {
    background-color: #f5f5f5;
    padding: 20px 30px;
    text-align: center;
    border-top: 1px solid #e0e0e0;
}

footer p {
    color: #666;
}

.small-text {
    font-size: 0.85em;
    color: #999;
    margin-top: 5px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        border-radius: 0;
    }

    header h1 {
        font-size: 1.8em;
    }

    nav {
        flex-direction: column;
    }

    nav a {
        text-align: center;
    }

    .search-form-inline {
        flex-direction: column;
    }

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

    input[type="text"] {
        width: 100%;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}