/* Global Styles */
:root {
    --primary-color: #2196F3;  /* 使用 Material Design 蓝色 */
    --primary-dark: #1976D2;   /* 深蓝色，用于悬停效果 */
    --primary-light: #BBDEFB;  /* 浅蓝色，用于背景等 */
    --text-primary: #333333;   /* 主要文字颜色 */
    --text-secondary: #666666; /* 次要文字颜色 */
    --text-translation: #888888; /* 翻译文字颜色，更灰 */
    --background-light: #F5F5F5;
    --card-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-light);
    margin: 0;
    padding: 0;
}

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

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Input Section */
.input-section {
    margin-bottom: 3rem;
}

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

input[type="text"] {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--primary-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

input[type="text"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

button#generateBtn {
    padding: 1rem 2rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}

button#generateBtn:hover {
    background-color: var(--primary-dark);
}

/* Results Section */
.name-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.name-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    margin: 20px 0;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--primary-light);
    animation: fadeIn 0.5s ease-out;
}

.name-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-light);
}

.chinese-name {
    color: var(--primary-color);
    font-size: 2em;
    margin: 0;
}

.pinyin {
    color: var(--text-secondary);
    margin: 5px 0;
}

.name-details {
    margin-bottom: 1.5rem;
}

.name-details h3 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.name-details p {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.card-actions {
    display: flex;
    justify-content: space-around;
    padding-top: 1rem;
    border-top: 2px solid var(--primary-light);
}

.card-actions button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.card-actions button:hover {
    color: var(--primary-color);
}

/* Translation Styles */
.translation-text {
    color: var(--text-translation);
    font-size: 0.9em;
    font-style: italic;
    margin-top: 0.5rem;
    visibility: hidden;
    opacity: 0;
    height: 0;
    transition: visibility 0.3s, opacity 0.3s, height 0.3s;
    padding-left: 1rem;
    border-left: 2px solid var(--primary-light);
}

.translation-text.show {
    visibility: visible;
    opacity: 1;
    height: auto;
    margin: 0.5rem 0 0.8rem 0;
}

.translate-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px !important;
    border-radius: 20px !important;
    width: auto !important;
    color: var(--text-secondary);
    border: 1px solid var(--primary-light) !important;
    transition: all 0.3s ease;
}

.translate-btn:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.translate-btn.active {
    background-color: var(--primary-color);
    color: white !important;
    border-color: var(--primary-color) !important;
}

.translate-btn i {
    font-size: 1.1em;
}

.translate-btn span {
    font-size: 0.9em;
}

/* Loading state for translate button */
.translate-btn.loading {
    pointer-events: none;
    opacity: 0.6;
}

.translate-btn.loading i {
    animation: spin 1s infinite linear;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Loading and Error States */
.loading, .error {
    text-align: center;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 600px;
    border-radius: var(--border-radius);
}

.loading {
    background-color: var(--background-light);
    color: var(--text-secondary);
    animation: pulse 1.5s infinite;
}

.error {
    background-color: #fff0f0;
    color: #cc0000;
    border: 1px solid #ffcccc;
}

@keyframes pulse {
    0% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0.6;
    }
}

/* Disabled Button State */
button#generateBtn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

/* Footer Styles */
footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #ddd;
    color: var(--text-secondary);
}

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

    .input-container {
        flex-direction: column;
    }

    button#generateBtn {
        width: 100%;
    }

    .name-cards {
        grid-template-columns: 1fr;
    }
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}