/* ============================================
   Sidebar Styles - Left Side
   ============================================ */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    box-sizing: border-box;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-lg) var(--spacing-md);
    z-index: 1100;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
    transition: background 0.2s ease;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-secondary);
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Avatar Section */
.sidebar-avatar {
    text-align: center;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.avatar-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--color-accent);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
    background: var(--color-bg);
}

.avatar-wrapper:hover {
    transform: scale(1.05) rotate(5deg);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transform: scale(1);
}

.sidebar-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--sidebar-name-color);
  margin-bottom: 0;
  line-height: 1.5;
  letter-spacing: -0.02em;
  position: relative;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-md);
  background: var(--sidebar-name-bg);
  box-shadow: var(--sidebar-name-shadow);
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.sidebar-name::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg,
        transparent,
        var(--color-accent) 20%,
        var(--color-accent) 80%,
        transparent
    );
}

.sidebar-title {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: 0;
    line-height: 1.5;
    letter-spacing: -0.02em;
    padding: 0.25rem 1rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.sidebar-contact {
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: -0.02em;
    padding: 0.25rem 1rem;
    margin-left: auto;
    margin-right: auto;
}

.contact-item {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    padding-left: 1.25rem;
}

.contact-item::before {
    content: '';
    position: absolute;
    left: 0;
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
}

.contact-location::before {
    background: var(--color-accent);
}

.contact-email::before {
    background: var(--color-text-secondary);
}

.contact-location {
    display: inline-block;
}

.contact-location::before {
    content: none;
}

/* Sidebar Sections */
.sidebar-section {
    padding-top: 0;
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-section:first-child {
    padding-top: 0;
}

.sidebar-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar-heading {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.sidebar-text {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Category List */
.category-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding-left: var(--spacing-md);
}

.category-item {
    display: flex;
    align-items: center;
    padding: 6px var(--spacing-md) 6px calc(var(--spacing-md) + 1px);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text);
    transition: all 0.2s ease;
    border-left: 3px solid var(--category-color);
}

.category-item:hover {
    background: var(--color-accent-soft);
    border-left-color: var(--category-color);
}

.category-name {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-xs);
    padding-left: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-bg);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.social-link:hover {
    background: var(--color-accent);
    color: white;
    transform: translateY(-2px);
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1101;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-md);
}

.sidebar-toggle:hover {
    background: var(--color-accent);
    color: white;
    transform: scale(1.05);
}

.sidebar-toggle svg {
    width: 24px;
    height: 24px;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        max-width: 280px;
    }
}

@media (min-width: 1200px) {
    .sidebar {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: none;
    }
}

/* 平板端 sidebar 激活时，主内容区向右偏移 */
@media (min-width: 769px) and (max-width: 1199px) {
    body.sidebar-active .home-container {
        margin-left: 280px;
        width: calc(100% - 280px);
        transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    body.sidebar-active .site-header {
        margin-left: 280px;
        width: calc(100% - 280px);
        transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
}

/* Search Link */
.search-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid var(--color-border);
}

.search-link:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
    transform: translateX(2px);
}

.search-link svg {
    flex-shrink: 0;
}

.search-link span {
    font-size: 0.9rem;
    font-weight: 500;
}