:root {
    --primary: #795548;
    --primary-light: #a98274;
    --primary-dark: #4b2c20;
    --accent: #ff9800;
    --background: #f5efe0;
    --card-bg: #ffffff;
    --text: #5d4037;
    --text-light: #8d6e63;
    --shadow: rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Noto Sans TC', 'Noto Sans', sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(121, 85, 72, 0.03) 0%, transparent 20%),
        radial-gradient(circle at 90% 30%, rgba(255, 152, 0, 0.03) 0%, transparent 20%),
        radial-gradient(circle at 30% 70%, rgba(121, 85, 72, 0.03) 0%, transparent 20%),
        radial-gradient(circle at 80% 80%, rgba(255, 152, 0, 0.03) 0%, transparent 20%);
}

.coffee-beans {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.coffee-bean {
    position: absolute;
    background-color: rgba(121, 85, 72, 0.05);
    border-radius: 50%;
    filter: blur(1px);
    transform: rotate(var(--rotation));
}

.language-switcher {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 14px;
    z-index: 100;
}

.language-switcher a {
    text-decoration: none;
    color: var(--text-light);
    padding: 5px;
    transition: color 0.3s;
}

.language-switcher a:hover {
    color: var(--accent);
}

.language-switcher a.active {
    color: var(--primary);
    font-weight: bold;
}

header {
    text-align: center;
    padding: 20px 0 30px;
    position: relative;
}

h1 {
    margin: 0;
    color: var(--primary-dark);
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
}

h1::after {
    content: '';
    position: absolute;
    width: 70%;
    height: 3px;
    background-color: var(--accent);
    bottom: -8px;
    left: 15%;
    border-radius: 3px;
    animation: underlineGrow 1.5s ease-out forwards;
    transform-origin: center;
    transform: scaleX(0);
}

@keyframes underlineGrow {
    to { transform: scaleX(1); }
}

.mode-toggle {
    text-align: center;
    margin-bottom: 25px;
}

.toggle-container {
    display: inline-flex;
    background-color: #e0e0e0;
    border-radius: 30px;
    padding: 5px;
    position: relative;
    margin: 0 auto;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.toggle-btn {
    background: none;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    position: relative;
    z-index: 2;
    transition: color 0.3s ease;
    color: var(--text);
    white-space: nowrap;
}

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

.toggle-btn.active {
    color: white;
}

.selector {
    position: absolute;
    height: calc(100% - 10px);
    border-radius: 25px;
    top: 5px;
    left: 5px;
    background-color: var(--primary);
    transition: transform 0.3s ease, width 0.3s ease;
    z-index: 1;
}

.main-container {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.flavor-selector {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px var(--shadow);
    flex: 1;
    min-width: 300px;
    transform: translateY(20px);
    opacity: 0;
    animation: fadeInUp 0.6s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.flavor-selector h2 {
    color: var(--primary-dark);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.slider-container {
    margin: 20px 0;
    position: relative;
}

label {
    display: inline-block;
    width: 100px;
    font-weight: bold;
    color: var(--primary-dark);
}

input[type="range"] {
    -webkit-appearance: none;
    width: calc(100% - 150px);
    height: 6px;
    background: #e0e0e0;
    border-radius: 5px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    transition: transform 0.2s, background 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--primary-dark);
}

.value-display {
    display: inline-block;
    width: 30px;
    text-align: center;
    font-weight: 500;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    padding: 3px;
    margin-left: 10px;
    transition: transform 0.2s, background-color 0.2s;
}

.slider-container:hover .value-display {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.filter-options {
    margin: 20px 0;
}

.filter-options h3 {
    color: var(--primary-dark);
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.region-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.region-btn {
    background-color: #e0e0e0;
    color: var(--text);
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.region-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

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

.controls-row {
    display: flex;
    align-items: center;
    margin-top: 20px;
    flex-wrap: wrap;
}

.results-count {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    white-space: nowrap;
}

#num-results {
    width: 50px;
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #ccc;
    text-align: center;
    margin: 0 10px;
}

.search-button {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    margin-left: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-button:hover {
    background-color: #f57c00;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.search-button:active {
    transform: translateY(0);
}

.search-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    margin-right: 8px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

#results {
    display: none;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px var(--shadow);
    flex: 1;
    min-width: 300px;
    transition: opacity 0.5s, transform 0.5s;
    opacity: 0;
    transform: translateY(20px);
}

#results.show {
    opacity: 1;
    transform: translateY(0);
}

.coffee-bean-card {
    margin: 25px 0;
    padding: 20px;
    border-radius: 12px;
    background-color: #efebe9;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.coffee-bean-card.show {
    opacity: 1;
    transform: translateY(0);
}

.coffee-bean-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.coffee-bean-card h3 {
    margin-top: 0;
    color: var(--primary-dark);
    font-size: 1.3rem;
    border-bottom: 1px solid rgba(0,0,0,0.07);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.flavor-profile {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.flavor-tag {
    background-color: rgba(169, 130, 116, 0.15);
    padding: 5px 12px;
    border-radius: 30px;
    font-size: 14px;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.flavor-tag:hover {
    background-color: rgba(169, 130, 116, 0.3);
    transform: translateY(-2px);
}

.simple-view {
    margin-top: 15px;
}

.origin-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 15px;
    background-color: var(--primary-light);
    color: white;
    font-size: 14px;
    margin-left: 10px;
}

.simple-flavor {
    margin: 15px 0;
    background-color: #fff;
    border-radius: 8px;
    padding: 12px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.flavor-bar-container {
    display: flex;
    margin: 8px 0;
    align-items: center;
}

.flavor-name {
    width: 80px;
    font-weight: 500;
    font-size: 14px;
}

.flavor-bar {
    flex-grow: 1;
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.flavor-fill {
    height: 100%;
    background-color: var(--primary);
    border-radius: 4px;
    width: 0;
    transition: width 1s cubic-bezier(0.45, 0.05, 0.55, 0.95);
}

.brewing-tips {
    margin-top: 15px;
    background-color: rgba(255, 152, 0, 0.1);
    border-left: 3px solid var(--accent);
    padding: 10px 15px;
    border-radius: 0 8px 8px 0;
}

.data-source {
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-light);
    text-align: center;
    font-style: italic;
}

.professional-mode {
    display: none;
}

.professional-details {
    background-color: rgba(233, 226, 219, 0.5);
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
}

.professional-row {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 8px;
}

.professional-item {
    flex: 1;
    min-width: 150px;
}

.processing-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 15px;
    background-color: var(--primary);
    color: white;
    font-size: 14px;
    margin-top: 5px;
}

.loading {
    text-align: center;
    padding: 20px;
    display: none;
}

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 152, 0, 0.2);
    border-radius: 50%;
    border-top-color: var(--accent);
    animation: spin 1s infinite linear;
}

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

.loading-text {
    margin-top: 15px;
    color: var(--text);
}

.error-message {
    color: #c62828;
    text-align: center;
    font-weight: bold;
    padding: 15px;
    background-color: rgba(198, 40, 40, 0.1);
    border-radius: 8px;
    margin: 15px 0;
    display: none;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.roast-selector {
    margin: 15px 0;
}

.roast-levels {
    display: flex;
    background-color: #e0e0e0;
    border-radius: 30px;
    padding: 5px;
    position: relative;
    margin-top: 10px;
}

.roast-btn {
    flex: 1;
    text-align: center;
    background: none;
    border: none;
    padding: 10px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    position: relative;
    z-index: 2;
    transition: color 0.3s;
    color: var(--text);
}

.roast-btn.active {
    color: white;
}

.roast-selector-highlight {
    position: absolute;
    height: calc(100% - 10px);
    border-radius: 25px;
    top: 5px;
    left: 5px;
    background-color: var(--primary);
    transition: transform 0.3s, width 0.3s;
    z-index: 1;
}

/* Social sharing styles */
.social-share {
    margin: 20px 0;
    text-align: center;
    padding: 15px;
    background-color: rgba(121, 85, 72, 0.05);
    border-radius: 10px;
}

.social-share h3 {
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s, background-color 0.3s;
}

.share-btn svg {
    fill: white;
    width: 20px;
    height: 20px;
}

.share-btn.facebook {
    background-color: #1877F2;
}

.share-btn.twitter {
    background-color: #1DA1F2;
}

.share-btn.pinterest {
    background-color: #E60023;
}

.share-btn.email {
    background-color: #333333;
}

.share-btn:hover {
    transform: translateY(-3px);
}

/* Footer styles */
.site-footer {
    margin-top: 40px;
    padding: 30px 20px;
    background-color: var(--primary-dark);
    color: #fff;
    border-radius: 15px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section {
    flex: 1;
    min-width: 250px;
    margin-bottom: 20px;
    padding: 0 15px;
}

.footer-section h3 {
    margin-bottom: 15px;
    font-size: 18px;
    color: var(--accent);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

.footer-bottom a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-bottom a:hover {
    color: var(--accent);
}

@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }
    
    .controls-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .search-button {
        margin-left: 0;
        width: 100%;
    }
    
    input[type="range"] {
        width: calc(100% - 50px);
    }
    
    label {
        width: auto;
        margin-bottom: 5px;
    }
    
    .slider-container {
        display: flex;
        flex-wrap: wrap;
    }
    
    .language-switcher {
        position: relative;
        text-align: right;
        top: 0;
        right: 0;
        margin-bottom: 10px;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-section {
        margin-bottom: 30px;
    }
}