/* 
    这部分 CSS 写的好乱…… 但毕竟能跑没什么问题，所以懒得改 

    sidebar在正常状态下使用 #sidebar-collapse-btn 控制开关
    宽度不够则使用 .mobile-nav-toggle，两个是不同逻辑（屎山）
*/


body:has(nav.sidebar.collapsed) .content-wrapper {
    margin-left: 64px;
    width: calc(100% - 64px);
}

nav.sidebar {
    width: 300px;
    height: 100dvh;
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    position: fixed;
    border-right: 1px solid color-mix(in srgb, var(--text-clr), transparent 80%);
    background-color: var(--bg-clr);
    transition: width var(--transition-speed), padding var(--transition-speed),
        background-color var(--transition-speed), color var(--transition-speed);
}

nav.sidebar .sidebar-header {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
    transition: 0.3s;
}

nav.sidebar .avatar {
    width: 50px;
    height: 50px;
    border: 1px solid var(--accent-clr);
    background: var(--img-avatar) center / cover no-repeat;
    flex-shrink: 0;
}

nav.sidebar .header-text {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

nav.sidebar .header-text .name {
    font-size: 1.3rem;
    font-weight: 500;
}

nav.sidebar .header-text .signature {
    font-size: 0.8rem;
    opacity: 0.7;
}

.divider {
    border: none;
    border-top: 1px solid color-mix(in srgb, var(--text-clr), transparent 80%);
    margin: 20px 0;
    flex-shrink: 0;
}

.nav-scroll-container {
    flex-grow: 1;
    overflow-y: auto;
    margin: 5px 0;
    padding-right: 5px;
}

.nav-scroll-container::-webkit-scrollbar {
    width: 2px;
}

.nav-scroll-container::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--text-clr), transparent 70%);
    opacity: 0.3;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.nav-item {
    text-decoration: none;
    color: var(--text-clr);
    font-size: 1rem;
    opacity: 0.7;
    cursor: pointer;
    transition: 0.3s;
    white-space: nowrap;
}

.nav-item.active {
    opacity: 1;
    color: var(--accent-clr);
    padding-left: 10px;
}

nav.sidebar .sidebar-footer {
    margin-top: auto;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

nav.sidebar .controls {
    display: flex;
    align-items: center;
}

nav.sidebar .ctrl-btn {
    cursor: pointer;
    opacity: 0.5;
    transition: 0.3s;
    font-size: 0.85rem;
}

nav.sidebar .social-btns {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-social-btn {
    color: var(--text-clr);
    opacity: 0.4;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.nav-social-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.watermark {
    font-size: 0.8rem;
    opacity: 0.5;
    letter-spacing: 2px;
}

nav.sidebar.collapsed {
    width: 0;
    padding: 0;
    overflow: hidden;
}

nav.sidebar.collapsed .header-text,
nav.sidebar.collapsed .nav-scroll-container,
nav.sidebar.collapsed .social-btns,
nav.sidebar.collapsed .watermark,
nav.sidebar.collapsed .divider {
    opacity: 0;
    pointer-events: none;
}

#sidebar-collapse-btn {
    position: fixed;
    top: 20px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-clr);
    cursor: pointer;
    color: var(--text-clr);
    flex-shrink: 0;
    transition: 0.3s;
    z-index: 999;
    margin-left: auto;
    border: none;
    transform: translateX(300px);
}
#sidebar-collapse-btn.collapsed {
    transform: translateX(0);
}

#sidebar-collapse-btn span {
    font-size: 25px;
    display: block;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

#sidebar-collapse-btn.collapsed span {
    transform: rotate(180deg);
}


nav.sidebar .sidebar-header:active,
.nav-item:active,
.mobile-nav-toggle:active {
    transform: scale(0.98);
}

@media (hover: hover) {
    nav.sidebar .sidebar-header:hover {
        color: var(--accent-clr);
        padding-left: 1px;
        opacity: 0.8;
    }

    .nav-item:hover {
        opacity: 1;
        color: var(--accent-clr);
        padding-left: 10px;
    }

    nav.sidebar .ctrl-btn:hover,
    #sidebar-collapse-btn:hover {
        opacity: 1;
        color: var(--accent-clr);
    }

    .nav-social-btn:hover {
        opacity: 1;
        color: var(--accent-clr);
        transform: translateY(-3px);
    }

    .mobile-nav-toggle:hover {
        opacity: 1;
        color: var(--accent-clr);
    }
}

/* Mobile Layout */
.mobile-nav-toggle {
    display: none;
}

@media (max-width: 768px) {
    #sidebar-collapse-btn {
        display: none;
    }

    .mobile-nav-toggle {
        display: flex;
        position: fixed;
        top: 25px;
        left: 25px;
        z-index: 1100;
        width: 44px;
        height: 44px;
        cursor: pointer;
        color: var(--text-clr);
        background-color: var(--bg-clr);
        justify-content: center;
        align-items: center;
        border-radius: 5px;
        opacity: 0.6;
        transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body:has(nav.sidebar.mobile-active) .mobile-nav-toggle {
        background-color: transparent;
        transform: translateX(calc(100dvw - 100px));
        color: var(--accent-clr);
        opacity: 1;
    }

    nav.sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        width: 100%;
        height: 100dvh;
        z-index: 1000;
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }

    nav.sidebar.mobile-active {
        left: 0;
    }
}