/* 页面整体布局 */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
}

.container {
    width: 80%;
    margin: 80px auto 20px;
    padding: 20px;
    background-color: var(--bg-color);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    gap: 30px;
    flex: 1; /* 让container占据剩余空间 */
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    padding: 0 20px;
}

h1 {
    color: var(--text-color);
    font-size: 2em;
    margin: 0;
}

.emoji-categories {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 200px;
    flex-shrink: 0;
    padding: 20px;
    background-color: var(--secondary-bg-color);
    border-radius: 10px;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.category-btn {
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    background-color: transparent;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 15px;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 10px;
}

.category-btn i {
    width: 20px;
    text-align: center;
}

.category-btn:hover {
    background-color: var(--hover-color);
}

.category-btn.active {
    background-color: var(--primary-color);
    color: rgb(130, 223, 168);
}

.emoji-content {
    flex: 1;
    padding: 20px;
    background-color: var(--secondary-bg-color);
    border-radius: 10px;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 15px;
    padding: 10px;
}

.emoji-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    background-color: var(--bg-color);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.emoji-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    background-color: var(--hover-color);
}

.emoji {
    font-size: 2em;
    margin-bottom: 8px;
}

.description {
    font-size: 12px;
    color: var(--text-color);
    opacity: 0.8;
}

.copy-notification {
    position: fixed;
    bottom: 50%;
    left: 55%;
    transform: translateX(-50%);
    background-color: rgb(238 245 250);
    color: rgb(69, 168, 224);
    padding: 10px 20px;
    border-radius: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 9999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 响应式设计 */
@media (max-width: 1400px) {
    .container {
        width: 90%;
    }
}

@media (max-width: 768px) {
    .container {
        width: 95%;
        flex-direction: column;
        margin: 70px auto 10px;
        padding: 10px;
        gap: 15px;
    }

    .emoji-categories {
        flex-direction: row;
        overflow-x: auto;
        padding: 10px;
        position: static;
        width: 100%;
    }

    .category-btn {
        padding: 8px 15px;
        font-size: 14px;
        white-space: nowrap;
    }

    .emoji-content {
        padding: 10px;
    }

    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 10px;
    }

    .emoji-item {
        padding: 10px;
    }

    .header-container {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }

    h1 {
        text-align: center;
    }

    .search-box {
        width: 100%;
    }
}

/* 暗色主题支持 */
.dark-theme .emoji-categories,
.dark-theme .emoji-content {
    background-color: var(--dark-secondary-bg);
}

.dark-theme .emoji-item {
    background-color: var(--dark-secondary-bg);
}

.dark-theme .emoji-item:hover {
    background-color: var(--dark-hover-color);
}

/* 动画效果 */
.emoji-item.hover {
    animation: bounce 0.5s ease;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* Footer样式 */
footer {
    margin-top: auto; /* 将footer推到底部 */
    padding: 20px 0;
    background-color: var(--bg-color);
    text-align: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

footer p {
    margin: 0;
    color: var(--text-color);
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
    margin-left: 10px;
}

footer a:hover {
    text-decoration: underline;
}

.search-container {
    flex-shrink: 0;
}

.search-box {
    position: relative;
    width: 300px;
}

.search-box input {
    width: 100%;
    padding: 12px 20px 12px 40px;
    border: 2px solid var(--secondary-bg-color);
    border-radius: 25px;
    font-size: 16px;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.search-box input::placeholder {
    color: var(--text-color);
    opacity: 0.5;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-color);
    opacity: 0.5;
    pointer-events: none;
    font-size: 14px;
    z-index: 0;
}

/* 搜索结果高亮 */
.emoji-item.hidden {
    display: none;
}

.emoji-item.highlight {
    animation: highlight 0.5s ease;
}

@keyframes highlight {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}