/* style.css */
:root {
    --dock-height: 60px;
    --dock-icon-size: 48px;
    --dock-bg: rgba(255, 255, 255, 0.2);
    --launchpad-bg: rgba(0, 0, 0, 0.2);
    --text-color: #fff;
    --text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    transition: background-image 0.5s ease-in-out;
    overflow: hidden; /* 防止启动台动画时出现滚动条 */
}

/* --- 顶部搜索栏 --- */
.top-search-bar {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}
.search-form {
    display: flex;
    align-items: center;
    background: var(--dock-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 8px;
    padding: 5px 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
#current-engine-icon {
    width: 24px;
    height: 24px;
}
#search-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-color);
    font-size: 16px;
    padding: 0 10px;
    width: 300px;
}
#search-input::placeholder { color: rgba(255,255,255,0.7); }
#search-engine {
    background: transparent;
    border: none;
    color: var(--text-color);
    outline: none;
    cursor: pointer;
}
#search-engine option { background: #333; }

/* --- 底部 Dock --- */
.dock-container {
    position: fixed;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}
.dock {
    display: flex;
    align-items: flex-end; /* 图标底部对齐 */
    padding: 8px;
    background: var(--dock-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    height: var(--dock-height);
}
.dock-item {
    display: block;
    margin: 0 5px;
    position: relative;
    transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.dock-item img {
    width: var(--dock-icon-size);
    height: var(--dock-icon-size);
    display: block;
    -webkit-box-reflect: below 2px linear-gradient(transparent, transparent, rgba(0,0,0,0.4));
}
.dock-item .tooltip {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}
.dock-item:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

/* --- 全屏启动台 (Launchpad) --- */
.launchpad {
    position: fixed;
    top: 0; left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--launchpad-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(1.1);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}
.launchpad.visible {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}
.launchpad-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 30px;
    width: 80%;
    max-width: 1000px;
    padding: 40px;
}
.launchpad-item {
    text-align: center;
    text-decoration: none;
    transition: transform 0.2s ease;
}
.launchpad-item:hover {
    transform: scale(1.1);
}
.launchpad-item img {
    width: 64px;
    height: 64px;
}
.launchpad-item span {
    display: block;
    color: var(--text-color);
    text-shadow: var(--text-shadow);
    margin-top: 8px;
    font-size: 14px;
}