/**
 * 样式表
 * 实现暗黑科技风主题
 */

:root {
    --bg-color: #1a1a2e; /* 稍亮的深蓝色 */
    --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --text-color: #f0f0f0;
    --accent-color: #00f2ff; /* 科技蓝 */
    --accent-glow: rgba(0, 242, 255, 0.5);
    --secondary-color: #7000ff; /* 紫色 */
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background: var(--bg-gradient);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 烟花画布样式 */
#fireworksCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10; /* 提升至毛玻璃之上 */
    pointer-events: none;
}

.container {
    max-width: 1000px;
    width: 90%;
    padding: 2rem;
    z-index: 5;
    background: rgba(10, 10, 12, 0.6); /* 稍微降低透明度，配合更亮的背景 */
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--card-border);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 2rem;
}

/* 自定义语言切换器 */
.custom-select-container {
    position: relative;
    user-select: none;
    min-width: 140px;
    font-size: 0.9rem;
}

.select-trigger {
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--card-border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.select-trigger:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.select-trigger::after {
    content: '';
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--text-color);
    border-bottom: 2px solid var(--text-color);
    transform: rotate(45deg);
    margin-left: 10px;
    margin-top: -4px;
    transition: transform 0.3s ease;
}

.custom-select-container.open .select-trigger::after {
    transform: rotate(-135deg);
    margin-top: 4px;
}

.select-options {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 100%;
    background: rgba(10, 10, 12, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    overflow: hidden;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.custom-select-container.open .select-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.select-option {
    padding: 0.7rem 1rem;
    cursor: pointer;
    transition: all 0.2s;
    color: #ccc;
}

.select-option:hover {
    background: rgba(0, 242, 255, 0.1);
    color: var(--accent-color);
    padding-left: 1.2rem;
}

.select-option.selected {
    color: var(--accent-color);
    background: rgba(0, 242, 255, 0.05);
}

.hero {
    text-align: center;
    margin-bottom: 4rem;
}

/* 时间显示样式 */
.local-time-container {
    margin-top: 1rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.5rem;
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--accent-glow);
    font-weight: 500;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: linear-gradient(to right, var(--accent-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px var(--accent-glow);
    animation: pulse 2s infinite alternate;
}

.tools-section {
    margin-top: 2rem;
}

.tools-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-left: 4px solid var(--accent-color);
    padding-left: 1rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 2rem;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-align: center;
}

.tool-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 242, 255, 0.2);
}

.tool-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.tool-name {
    font-weight: 600;
    font-size: 1.1rem;
}

footer {
    margin-top: 4rem;
    text-align: center;
    font-size: 0.8rem;
    color: #666;
}

@keyframes pulse {
    from {
        opacity: 0.8;
    }
    to {
        opacity: 1;
    }
}

/* 响应式调整 */
@media (max-width: 600px) {
    .hero h1 {
        font-size: 2rem;
    }
    .container {
        padding: 1.5rem;
    }
}