:root {
    --bg-primary: #0D0D0D;
    --bg-secondary: #1A1A2E;
    --bg-card: #16162A;
    --text-primary: #FFFFFF;
    --text-secondary: #8B8B8B;
    --accent-lime: #CCFF00;
    --accent-pink: #FF3CAC;
    --accent-cyan: #00D4FF;
    --accent-green: #00FF88;
    --border: rgba(255,255,255,0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-lime);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
}

.logo-icon svg {
    width: 24px;
    height: 24px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-list {
    list-style: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-lime);
    color: var(--bg-primary);
}

.nav-item svg {
    width: 20px;
    height: 20px;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
}

.header h1 {
    font-size: 28px;
    font-weight: 600;
}

.btn-primary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--accent-lime);
    color: var(--bg-primary);
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(204,255,0,0.3);
}

.btn-primary svg {
    width: 16px;
    height: 16px;
}

.content {
    padding: 32px;
    flex: 1;
}

.content p {
    color: var(--text-secondary);
    font-size: 16px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border-radius: 16px;
    padding: 32px;
    width: 90%;
    max-width: 480px;
    z-index: 1001;
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        height: 100vh;
        z-index: 100;
        transition: left 0.3s;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .main-content {
        margin-left: 0;
    }
}