:root {
    --primary-color: #8B5CF6;
    --primary-hover: #7C3AED;
    --primary-gradient: linear-gradient(135deg, #8B5CF6 0%, #A855F7 50%, #C084FC 100%);
    --primary-gradient-hover: linear-gradient(135deg, #7C3AED 0%, #9333EA 50%, #A855F7 100%);
    --bg-primary: #0D0D0D;
    --bg-secondary: #1a1a1a;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --border-color: #2a2a2a;
    --shadow: 0 4px 10px rgba(139, 92, 246, 0.2);
    --sidebar-width: 300px;
    --blur-amount: 8px;
}

[data-theme="light"] {
    --primary-color: #7C3AED;
    --primary-hover: #6D28D9;
    --primary-gradient: linear-gradient(135deg, #7C3AED 0%, #8B5CF6 50%, #A855F7 100%);
    --primary-gradient-hover: linear-gradient(135deg, #6D28D9 0%, #7C3AED 50%, #8B5CF6 100%);
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --border-color: #e0e0e0;
    --shadow: 0 4px 6px -1px rgba(124, 58, 237, 0.1), 0 2px 4px -1px rgba(124, 58, 237, 0.06);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 1000;
    transition: filter 0.3s ease, transform 0.3s ease;
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
}

.logo {
    height: 100%;
    width: auto;
    transition: filter 0.3s ease;
}

[data-theme="light"] .logo {
    filter: invert(1);
}

.theme-toggle {
    background: var(--primary-gradient);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.theme-toggle:hover {
    background: var(--primary-gradient-hover);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: var(--bg-primary);
    transition: transform 0.3s ease;
}

.theme-toggle:hover svg {
    transform: rotate(180deg);
}

.hamburger-menu {
    background: var(--primary-gradient);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    gap: 4px;
    position: relative;
    z-index: 1001;
    text-decoration: none;
}

.hamburger-menu:hover {
    background: var(--primary-gradient-hover);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.hamburger-menu.active {
    background: var(--primary-gradient-hover);
    border-color: var(--primary-color);
}

.hamburger-line {
    width: 20px;
    height: 2px;
    background-color: var(--bg-primary);
    border-radius: 1px;
    transition: all 0.3s ease;
}

.hamburger-menu.active .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.hamburger-menu.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    z-index: 3000;
    transition: left 0.3s ease;
    overflow-y: auto;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
    text-decoration: none;
}

.sidebar-close:hover {
    background-color: var(--bg-secondary);
}

.sidebar-close svg {
    width: 20px;
    height: 20px;
    fill: var(--text-primary);
}

.sidebar-content {
    padding: 2rem;
}

.sidebar-nav {
    list-style: none;
    margin-bottom: 2rem;
}

.sidebar-content nav .sidebar-nav:first-of-type {
    margin-bottom: 0.5rem;
}

.sidebar-subheading {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 1rem 0 0.5rem 0;
    padding: 0;
    text-transform: lowercase;
    letter-spacing: 0.5px;
}

.sidebar-nav-item {
    margin-bottom: 0.5rem;
}

.sidebar-nav-link {
    display: block;
    padding: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.sidebar-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.sidebar-nav-link.active {
    background: var(--primary-gradient);
    color: var(--bg-primary);
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

.header.blurred,
.main-content.blurred {
    filter: blur(var(--blur-amount));
    transform: scale(0.98);
    pointer-events: none;
    user-select: none;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .header {
        padding: 1rem 0;
    }
    
    :root {
        --sidebar-width: 280px;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1600px;
    }
}

.footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.footer p {
    margin: 0;
}

@media (max-width: 768px) {
    .footer {
        padding: 1.5rem 0;
        margin-top: 2rem;
        font-size: 0.85rem;
    }
}