/**
 * Clash Hub — 页面骨架与导航布局
 * 含登录装饰、侧栏、主区域响应式；卡片容器见本文件，细粒度组件见 components.css。
 */
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background .2s, color .2s;
}

.card {
    background: var(--card);
    border-radius: 1rem;
    border: 1px solid var(--border);
    padding: 1.75rem;
    box-shadow: var(--shadow);
    transition: box-shadow .25s ease, transform .25s ease, border-color .2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, .08);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem 1rem;
    cursor: pointer;
    border-radius: .5rem;
    transition: background .15s;
    color: var(--text);
}

.nav-item:hover {
    background: var(--nav-hover);
}

.nav-item.active {
    background: var(--nav-active);
    color: #fff;
}

.nav-item svg {
    opacity: .85;
}

header {
    border-color: var(--border) !important;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 40;
}

.border-slate-700 {
    border-color: var(--border) !important;
}

.text-slate-400 {
    color: var(--muted) !important;
}

.login-deco {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.login-deco::before {
    content: "";
    position: absolute;
    width: 60vmax;
    height: 60vmax;
    left: -20%;
    top: -20%;
    background: radial-gradient(circle, rgba(59, 130, 246, .15), transparent 60%);
    border-radius: 50%;
}

@media (min-width: 1024px) {
    .layout-nav {
        background: var(--bg-glass);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }
}

@media (max-width: 1023px) {
    .layout-nav {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        min-height: auto;
        padding: .5rem 1rem;
        flex-direction: row;
        flex-wrap: wrap;
        gap: .25rem;
        background: var(--bg-glass);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        position: sticky;
        top: 61px; /* Just below header if it has height, approx 61px */
        z-index: 30;
    }

    .layout-main {
        max-height: none !important;
    }
}

.app-logo {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: .65rem;
    flex-shrink: 0;
    object-fit: contain;
}

.app-logo-sm {
    width: 2rem;
    height: 2rem;
    border-radius: .5rem;
}